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Clean Air & Sustainable Mobility

Winter pollution in eastern India as bad as Delhi-NCR: CSE report

The average concentration of particulate matter 2.5 (PM2.5) in the cities of eastern India was the same as that in the cities of Delhi-NCR in the winter of 2021-22, according to a new report. Parsed regionally, eastern India was over three times as polluted as southern India and 22 per cent more polluted than northern India from October 15, 2021 to February 28, 2022, the analysis showed. The report was published by the Centre for Science and Environment (CSE), a Delhi-based non-profit. The analysis was based on real-time data from 326 official stations across 161 cities in 26 states and union territories, displayed on the Central Pollution Control Board’s (CPCB) official online portal. North India is notorious for its winter air pollution, caused mostly by stubble burning between crop cycles. Air quality in Bihar was particularly unhealthy, with six of its cities featuring in the top 10 most-polluted cities this winter, the analysis by the Centre for Science and Environment, a Delhi-based non-profit, showed. Siwan in Bihar topped the list this winter, with a seasonal average of 187 microgram per cubic metre (ug/m3). A trend that emerged from the analysis was that the smaller cities of Bihar were more polluted during the study period than the big cities in Delhi-NCR. The results of the study demonstrated how the winter pollution challenge is not limited to mega cities or to one specific region, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Quicker reforms and action in key sectors of pollution such as vehicles, industry, power plants and waste management are required “to bend the annual air pollution curve and daily spikes”, she added. Hisar in northern Haryana was the only city in the top 25 outside the sub-regions of Bihar and NCR, according to the report. Top 25 most-polluted cities Mega cities are not the most polluted in any of the regions and the smaller and upcoming cities are becoming pollution hotspots, said Avikal Somvanshi, programme manager, Urban Data Analytics Lab, CSE. “This is even more evident in the winter peak daily pollution data.” Air pollution was, however, more severe in NCR. The research paper noted: NCR cities completely dominated the list of most polluted cities, with significantly worse 24-hour averages compared to the rest of the country. Ghaziabad witnessed the worst peak (24-hour average) among all the cities this winter, with a PM2.5 level of 647 ug/m3 (almost 11 times the Indian standard of 60 ug/m3). The winter of 2021-22 was less polluted than the preceding one, the researchers observed. “Air quality on an average was 12 per cent cleaner this winter compared to the previous winter, based on an average of 136 cities that have valid daily PM2.5 concentration data for over 75 per cent of days of both winters (15 October to 28 February),” the report stated. Cities in north India, on an average, have recorded 11 per cent lower PM2.5 level this winter, according to the analysis. “But the improvement in Delhi NCR was smaller — just about 8 per cent.” Delhi-NCR also saw a marginal increase in the average peak 24-hour pollution, the report added.

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

New Delhi, March 16 (SocialNews.XYZ) The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. This alarming observation was found in a detailed, all-India winter air quality analysis done by the Centre for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions. Peak pollution was alarmingly high and synchronised, despite large distances within the regions - especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air quality tracker initiative of CSE's Urban Data Analytics Lab. "Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale. This requires quicker reforms and action in key sectors of pollution - vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes," CSE's Executive Director, Research and Advocacy, Anumita Roychowdhury said. "As availability of real time air quality data has improved in several regions with expansion of the air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This can help to inform the regional clean air action," said CSE's programme manager, Urban Data Analytics Lab, Avikal Somvanshi. This air quality tracker initiative has helped to benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board's official online portal Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR. The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top. In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list. Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit. Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average. Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: "It is important to note that mega cities are not the most polluted in any of the regions -- it is the smaller and upcoming cities that are becoming pollution hotspots. This is even more evident in the winter peak daily pollution data." Source: IANS

Clean Air & Sustainable Mobility

Ghaziabad, Delhi top polluted north Indian cities in winter: CSE

The peak pollution rose significantly from the baseline among the cities in the south 24 per cent and central Indian cities 7 per cent, despite the overall fall in the winter average, it said.In the northern region, Srinagar was found to be the cleanest city with Palwal in Haryana, Bathinda in Punjab and Alwar in Rajasthan among the cities with a relatively lower winter average.In the eastern region, the most polluted city was Siwan in Bihar while in the west, it was Ankleshwar in Gujarat. PTI | New Delhi | Updated: 16-03-2022 21:09 IST | Created: 16-03-2022 21:08 IST Ghaziabad, Delhi top polluted north Indian cities in winter: CSE Representative Image Image Credit: ANI Country:India SHARE Ghaziabad was the most polluted city among 60 north Indian cities last winter, followed by Delhi, according to a latest air quality analysis. According to the ''All India Winter Air Quality Analysis'' carried out by the Centre for Science and Environment (CSE), particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (from October 15 to February 28). The analysis contains a detailed assessment of all the regions -- north, south, east, west, central and northeast. It said the most polluted city in the northern region was Ghaziabad with a particulate matter 2.5 (PM2.5) average of 178 microgram per cubic metre (μg/m3), followed by Delhi that had a winter average of 170 ug/m3. The next seven spots are all occupied by neighbouring NCR cities -- Faridabad, Manesar, Baghpat, Noida, Gurugram, Meerut and Hapur, it said. The CSE, however, observed that the north Indian cities have, on an average, recorded 11 per cent lower PM2.5 level last winter, but the improvement in the sub-region of Delhi-NCR was just about eight per cent. ''Delhi-NCR also saw a marginal increase in the average peak 24-hour pollution. The peak pollution rose significantly from the baseline among the cities in the south (24 per cent) and central Indian cities (7 per cent), despite the overall fall in the winter average,'' it said. In the northern region, Srinagar was found to be the cleanest city with Palwal in Haryana, Bathinda in Punjab and Alwar in Rajasthan among the cities with a relatively lower winter average. In the eastern region, the most polluted city was Siwan in Bihar while in the west, it was Ankleshwar in Gujarat. In the central region, Singrauli in Madhya Pradesh was the most polluted city while in south, Kalaburgi in Karnataka and Hyderabad in Telangana were found to be the most polluted cities. The most polluted city in the northeastern region was Guwahati in Assam with a winter average PM2.5 of 81 ug/m3. The analysis was done for the 2021-22 winter air quality tracker initiative of the CSE's Urban Data Analytics Lab. ''Clearly, the winter pollution challenge is not limited to mega cities or to one specific region. It is now a widespread national problem that requires urgent and deliberate action at a national scale. ''This requires quicker reforms and action in key sectors of pollution -- vehicles, industry, power plants and waste management -- to bend the annual air pollution curve and daily spikes,'' said Anumita Roychowdhury, executive director, research and advocacy, CSE. She said while the regions are battling to meet the national ambient air quality standards, winter conditions are aggravating the problem further. ''Even though the pandemic conditions have arrested the overall trend in most regions, there is still a mixed trend. Despite having a relatively lower annual average pollution levels, the peak pollution during winter can spike. This indicates the influence of cool and calm winter conditions and also the regional influence,'' Roychowdhury said. Avikal Somvanshi, programme manager, Urban Data Analytics Lab, CSE, said as the availability of real-time air quality data has improved in several regions with the expansion of air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This air quality tracker initiative has helped benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences, the CSE said. The analysis is based on publicly available granular real-time data (15-minute averages) from the Central Pollution Control Board's (CPCB) official online portal, Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union territories, it said.

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. This alarming observation was found in a detailed, all-India winter air quality analysis done by the Centre for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions. Peak pollution was alarmingly high and synchronised, despite large distances within the regions - especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air quality tracker initiative of CSE's Urban Data Analytics Lab. "Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale. This requires quicker reforms and action in key sectors of pollution - vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes," CSE's Executive Director, Research and Advocacy, Anumita Roychowdhury said. "As availability of real time air quality data has improved in several regions with expansion of the air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This can help to inform the regional clean air action," said CSE's programme manager, Urban Data Analytics Lab, Avikal Somvanshi. This air quality tracker initiative has helped to benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board's official online portal Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR. The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top. In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list. Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit. Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average. Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: "It is important to note that mega cities are not the most polluted in any of the regions -- it is the smaller and upcoming cities that are becoming pollution hotspots. This is even more evident in the winter peak daily pollution data."

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR Top Pollution Charts, Air Quality Major Crisis: CSE

The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Bihar, Delhi-ncr Top Pollution Charts, Air Quality Major Crisis: Cse-TeluguStop.com This alarming observation was found in a detailed, all-India winter air Quality analysis done by the Centre for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions.Peak pollution was alarmingly high and synchronised, despite large distances within the regions – especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air Quality tracker initiative of CSE’s Urban Data Analytics Lab.”Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale.This requires quicker reforms and action in key sectors of pollution – vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes,” CSE’s Executive Director, Research and Advocacy, Anumita Roychowdhury said. “As availability of real time air Quality data has improved in several regions with expansion of the air Quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends.This can help to inform the regional clean air action,” said CSE’s programme manager, Urban Data Analytics Lab, Avikal Somvanshi. This air Quality tracker initiative has helped to benchmark the winter air Quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board’s official online portal Central Control Room for Air Quality Management.The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR.The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top.In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list.Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit.Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities.Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average.Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: “It is important to note that mega cities are not the most polluted in any of the regions — it is the smaller and upcoming cities that are becoming pollution hotspots.This is even more evident in the winter peak daily pollution data.”

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. This alarming observation was found in a detailed, all-India winter air quality analysis done by the Centre for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions. Peak pollution was alarmingly high and synchronised, despite large distances within the regions - especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air quality tracker initiative of CSE's Urban Data Analytics Lab. "Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale. This requires quicker reforms and action in key sectors of pollution - vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes," CSE's Executive Director, Research and Advocacy, Anumita Roychowdhury said. "As availability of real time air quality data has improved in several regions with expansion of the air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This can help to inform the regional clean air action," said CSE's programme manager, Urban Data Analytics Lab, Avikal Somvanshi. This air quality tracker initiative has helped to benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board's official online portal Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR. The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top. In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list. Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit. Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average. Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: "It is important to note that mega cities are not the most polluted in any of the regions -- it is the smaller and upcoming cities that are becoming pollution hotspots. This is even more evident in the winter peak daily pollution data."

Clean Air & Sustainable Mobility

Ghaziabad, Delhi top polluted north Indian cities in winter: CSE

Ghaziabad was the most polluted city among 60 north Indian cities last winter, followed by Delhi, according to a latest air quality analysis.According to the "All India Winter Air Quality Analysis" carried out by the Centre for Science and Environment (CSE), particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (from October 15 to February 28).The analysis contains a detailed assessment of all the regions -- north, south, east, west, central and northeast.It said the most polluted city in the northern region was Ghaziabad with a particulate matter 2.5 (PM2.5) average of 178 microgram per cubic metre (?g/m3), followed by Delhi that had a winter average of 170 ug/m3.The next seven spots are all occupied by neighbouring NCR cities -- Faridabad, Manesar, Baghpat, Noida, Gurugram, Meerut and Hapur, it said.The CSE, however, observed that the north Indian cities have, on an average, recorded 11 per cent lower PM2.5 level last winter, but the improvement in the sub-region of Delhi-NCR was just about eight per cent."Delhi-NCR also saw a marginal increase in the average peak 24-hour pollution. The peak pollution rose significantly from the baseline among the cities in the south (24 per cent) and central Indian cities (7 per cent), despite the overall fall in the winter average," it said.In the northern region, Srinagar was found to be the cleanest city with Palwal in Haryana, Bathinda in Punjab and Alwar in Rajasthan among the cities with a relatively lower winter average.In the eastern region, the most polluted city was Siwan in Bihar while in the west, it was Ankleshwar in Gujarat. In the central region, Singrauli in Madhya Pradesh was the most polluted city while in south, Kalaburgi in Karnataka and Hyderabad in Telangana were found to be the most polluted cities.The most polluted city in the northeastern region was Guwahati in Assam with a winter average PM2.5 of 81 ug/m3.The analysis was done for the 2021-22 winter air quality tracker initiative of the CSE"s Urban Data Analytics Lab."Clearly, the winter pollution challenge is not limited to mega cities or to one specific region. It is now a widespread national problem that requires urgent and deliberate action at a national scale."This requires quicker reforms and action in key sectors of pollution -- vehicles, industry, power plants and waste management -- to bend the annual air pollution curve and daily spikes," said Anumita Roychowdhury, executive director, research and advocacy, CSE.She said while the regions are battling to meet the national ambient air quality standards, winter conditions are aggravating the problem further."Even though the pandemic conditions have arrested the overall trend in most regions, there is still a mixed trend. Despite having a relatively lower annual average pollution levels, the peak pollution during winter can spike. This indicates the influence of cool and calm winter conditions and also the regional influence," Roychowdhury said.Avikal Somvanshi, programme manager, Urban Data Analytics Lab, CSE, said as the availability of real-time air quality data has improved in several regions with the expansion of air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends.This air quality tracker initiative has helped benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences, the CSE said.The analysis is based on publicly available granular real-time data (15-minute averages) from the Central Pollution Control Board"s (CPCB) official online portal, Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union territories, it said. PTI AG RC

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. This alarming observation was found in a detailed, all-India winter air quality analysis done by the Center for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions. Peak pollution was alarmingly high and synchronized, despite large distances within the regions – especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air quality tracker initiative of CSE’s Urban Data Analytics Lab. “Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale. This requires quicker reforms and action in key sectors of pollution – vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes, “CSE’s Executive Director, Research and Advocacy, Anumita Roychowdhury said. “As availability of real time air quality data has improved in several regions with expansion of the air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This can help to inform the regional clean air action,” said CSE’s program manager, Urban Data Analytics Lab, Avikal Somvanshi. This air quality tracker initiative has helped to benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board’s official online portal Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR. The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top. In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list. Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit. Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average. Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: “It is important to note that mega cities are not the most polluted in any of the regions – it is the smaller and upcoming cities that are becoming pollution hotspots. This is even more evident in the winter peak daily pollution data. “

Clean Air & Sustainable Mobility

पिछली सर्दी के दौरान उत्तर भारत का सर्वाधिक प्रदूषित नगर रहा गाजियाबाद, दूसरे स्थान पर दिल्ली: सीएसई

नयी दिल्ली, 16 मार्च (भाषा) वायु गुणवत्ता पर किये गए ताजा विश्लेषण में सामने आया है कि पिछली सर्दी के दौरान उत्तर भारत के 60 शहरों में से गाजियाबाद सर्वाधिक प्रदूषित रहा। अध्ययन के अनुसार गाजियाबाद के बाद दिल्ली सबसे ज्यादा प्रदूषित नगर के तौर पर सूची में शामिल किया गया। ‘सेंटर फॉर साइंस एंड एन्वायरन्मेंट’ (सीएसई) द्वारा किये गए “आल इंडिया विंटर क्वालिटी एनालिसिस” के अनुसार 2021-2022 की सर्दियों के दौरान (15 अक्टूबर से 28 फरवरी तक) सभी क्षेत्रों में हवा में सूक्ष्म कणों द्वारा प्रदूषण में वृद्धि हुई और बरकरार रही। विश्लेषण में देश के उत्तरी, दक्षिणी, पूर्वी, मध्य और पूर्वोत्तर क्षेत्र का विस्तृत अध्ययन किया गया। अध्ययन में सामने आया कि उत्तर भारत में सबसे ज्यादा प्रदूषित शहर गाजियाबाद रहा जहां हवा में सूक्ष्म कणों पीएम2.5 की मात्रा औसतन 178 माइक्रोग्राम प्रति गहन मीटर थी। इसके बाद दिल्ली में इन कणों की मात्रा 170 माइक्रोग्राम प्रति घन मीटर दर्ज की गई।

Clean Air & Sustainable Mobility

पिछली सर्दी के दौरान उत्तर भारत का सर्वाधिक प्रदूषित नगर रहा गाजियाबाद, दूसरे स्थान पर दिल्ली: सीएसई

वायु गुणवत्ता पर किये गए ताजा विश्लेषण में सामने आया है कि पिछली सर्दी के दौरान उत्तर भारत के 60 शहरों में से गाजियाबाद सर्वाधिक प्रदूषित रहा। अध्ययन के अनुसार गाजियाबाद के बाद दिल्ली सबसे ज्यादा प्रदूषित नगर के तौर पर सूची में शामिल किया गया। ‘सेंटर फॉर साइंस एंड एन्वायरन्मेंट’ (सीएसई) द्वारा किये गए “आल इंडिया विंटर क्वालिटी एनालिसिस” के अनुसार 2021-2022 की सर्दियों के दौरान (15 अक्टूबर से 28 फरवरी तक) सभी क्षेत्रों में हवा में सूक्ष्म कणों द्वारा प्रदूषण में वृद्धि हुई और बरकरार रही। विश्लेषण में देश के उत्तरी, दक्षिणी, पूर्वी, मध्य और पूर्वोत्तर क्षेत्र का विस्तृत अध्ययन किया गया। अध्ययन में सामने आया कि उत्तर भारत में सबसे ज्यादा प्रदूषित शहर गाजियाबाद रहा जहां हवा में सूक्ष्म कणों पीएम2.5 की मात्रा औसतन 178 माइक्रोग्राम प्रति गहन मीटर थी। इसके बाद दिल्ली में इन कणों की मात्रा 170 माइक्रोग्राम प्रति घन मीटर दर्ज की गई।

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22 (October 15 to February 28) with the PM2.5 winter average of the eastern region was over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. This alarming observation was found in a detailed, all-India winter air quality analysis done by the Centre for Science and Environment (CSE) and released on Wednesday. Even though the overall regional averages of PM2.5 levels were lower than the previous winter in most regions, the winter smog episodes recorded severe spikes in several regions. Peak pollution was alarmingly high and synchronised, despite large distances within the regions – especially in the northern and eastern plains, the analysis said. The analysis has been done for the 2021-22 winter air quality tracker initiative of CSE’s Urban Data Analytics Lab. “Clearly, the winter pollution challenge is not limited to mega cities or to one specific region; it is now a widespread national problem that requires urgent and deliberate action at a national scale. This requires quicker reforms and action in key sectors of pollution – vehicles, industry, power plants and waste management to bend the annual air pollution curve and daily spikes,” CSE’s Executive Director, Research and Advocacy, Anumita Roychowdhury said. “As availability of real time air quality data has improved in several regions with expansion of the air quality monitoring systems, it has become possible to assess the regional differences and the unique regional trends. This can help to inform the regional clean air action,” said CSE’s programme manager, Urban Data Analytics Lab, Avikal Somvanshi. This air quality tracker initiative has helped to benchmark the winter air quality for peer-to-peer comparison within each region and inter-regional differences. The analysis is based on publicly available granular real time data (15-minute averages) from the Central Pollution Control Board’s official online portal Central Control Room for Air Quality Management. The data is captured from 326 official stations under the Continuous Ambient Air Quality Monitoring System (CAAQMS) spread across 161 cities in 26 states and Union Territories. As per the analysis, the regional profile of winter pollution showed the eastern region is as polluted as Delhi-NCR. The winter average of PM2.5 in eastern plains that also include the newly monitored 19 cities and towns of Bihar, was the same as that of Delhi-NCR. Six Bihar towns feature in the top 10 most polluted cities this winter, with Siwan and Munger at the top. In the northern plains, Ghaziabad, Delhi, Faridabad, and Manesar are third, fifth, seventh and tenth in the list. Even though the seasonal average in smaller cities of Bihar rivals the mega-cities of NCR, their peak pollution during smog episodes are comparatively milder, it said. The NCR cities have experienced the most severe daily (24-hr average) PM2.5 levels with Ghaziabad being the worst hit. Delhi, Noida, Faridabad, Greater Noida, and Gurugram are among the worst that saw peak pollution (24-hr average) this winter. The PM2.5 winter average of the eastern region is over three times the average of the cities in southern India and 22 per cent more polluted than north Indian cities. Within the east, the Bihar sub-region is the most polluted. From the peak 24-hr PM2.5 level perspective, north Indian cities have recorded the highest daily pollution levels on an average. Within the north, Delhi-NCR remains the most polluted sub-region with their worst days being almost five times the average. Somvanshi said: “It is important to note that mega cities are not the most polluted in any of the regions — it is the smaller and upcoming cities that are becoming pollution hotspots. This is even more evident in the winter peak daily pollution data.”

Clean Air & Sustainable Mobility

Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE

Clean Air & Sustainable Mobility

पिछली सर्दी के दौरान उत्तर भारत का सर्वाधिक प्रदूषित नगर रहा गाजियाबाद, दूसरे स्थान पर दिल्ली: सीएसई

Clean Air & Sustainable Mobility

जहरीली हवा: रिपोर्ट में खुलासा, सर्दियों में उत्तर भारत में सबसे प्रदूषित रहे गाजियाबाद-दिल्ली

मौसम विभाग द्वारा जारी हाल ही में जारी एक रिपोर्ट में खुलासा हुआ है कि सर्दियों में उत्तर भारत में सबसे ज्यादा प्रदूषित शहर गाजियाबाद रहा है जबकि दूसरे स्थान पर दिल्ली रहा है। विज्ञान एवं पर्यावरण केंद्र (सीएसई) द्वारा कराए गए ऑल इंडिया विंटर एयर क्वालिटी एनालिसिस के अनुसार 2021-22 की सर्दियों (15 अक्तूबर से 28 फरवरी तक) में सभी क्षेत्रों में प्रदूषण ने उछाल दर्ज की। सर्वे में सभी क्षेत्रों, पूर्व, पश्चिम, उत्तर, दक्षिण, मध्य और पूर्वोत्तर को शामिल किया गया। इसके अनुसार, उत्तर क्षेत्र में सबसे प्रदूषित शहर गाजियाबाद रहा जबकि दूसरे स्थान पर दिल्ली रहा। अगले सात स्पॉट एनसीआर के सभी पड़ोसी शहरों ने ले लिए। इनमें फरीदाबाद, मानेसर, बागपत, नोएडा, गुरुग्राम, मेरठ और हापुड़ हैं। इस क्षेत्र में सबसे साफ शहर श्रीनगर रहा जबकि हरियाणा का पलवल, पंजाब का भटिंडा और राजस्थान के अलवर में अपेक्षाकृत कम सर्दी रही। सूरज के तल्ख होते तेवरों के बीच बुधवार को दिल्ली का अधिकतम तापमान 35 डिग्री सेल्सियस तक पहुंच गया, जो कि सीजन का अब तक का सबसे गर्म दिन रहा। सूरज की अधिक तपिश के बीच दिनभर 25 से लेकर 35 किमी प्रतिघंटा की रफ्तार से हवाएं रिकॉर्ड की गई। मौसम विभाग का पूर्वानुमान है कि पूरा सप्ताह मौसम साफ रहेगा व आने वाले दिनों में तपिश बढ़ेगी। मौसम विभाग के मुताबिक, अधिकतम तापमान सामान्य से चार अधिक व न्यूनतम तापमान सामान्य से पांच अधिक 20.5 डिग्री सेल्सियस तक दर्ज किया गया। दिनभर धूप खिली रही और 25 से लेकर 35 किमी प्रतिघंटे की रफ्तार से हवाएं रिकॉर्ड की गई। हवा में नमी का स्तर 32 से लेकर 88 फीसदी तक दर्ज किया गया। पूरे सप्ताह साफ रहेगा मौसम मौसम विभाग का पूर्वानुमान है कि पूरे सप्ताह मौसम साफ बना रहेगा और धूप की तपिश तेज होगी। अगले 24 घंटे में अधिकतम तापमान 34 व न्यूनतम तापमान 19 डिग्री सेल्सियस तक दर्ज किया जा सकता है। विभाग के मुताबिक, मौसम साफ होने की वजह से पारा 34 से लेकर 35 डिग्री सेल्सियस बना रहेगा। पूरे सप्ताह हवा की रफ्तार हल्की रहेगी। खराब श्रेणी में रही दिल्ली-एनसीआर की हवा दिल्ली-एनसीआर की हवा बुधवार को खराब श्रेणी में दर्ज की गई है। सबसे खराब हवा का स्तर 240 एक्यूआइ के साथ गाजियाबाद का रहा। वायु गुणवत्ता की निगरानी करने वाली एजेंसियों का पूर्वानुमान है कि अगले 24 घंटे में भी हवा की गुणवत्ता में अधिक बदलाव की संभवाना नहीं है। केंद्रीय प्रदूषण नियंत्रण बोर्ड (सीपीसीबी) के मुताबिक, बुधवार को दिल्ली का एक्यूआइ 218, फरीदाबाद 170, ग्रेटर नोएडा 208, गुरुग्राम 216 व नोएडा का 180 एक्यूआइ रहा। वायु मानक संस्था सफर के मुताबिक, अगले तीन दिनों में हवा की रफ्तार कम होने की वजह से वायु गुणवत्ता खराब श्रेणी में ही बनी रहेगी। हालांकि, पारा बढ़ने की वजह से वेंटिलेशन इंडेक्स बढ़ेगा। आगामी 20 मार्च को हवा की रफ्तार बढ़ने की वजह से वायु गुणवत्ता में आंशिक रूप से सुधार की संभावना है। बीते 24 घंटे में हवा में पीएम 10 का स्तर 180 व पीएम 2.5 का स्तर 87 माइक्रोग्राम प्रतिघन मीटर रिकॉर्ड किया गया।

Clean Air & Sustainable Mobility

पिछली सर्दी के दौरान उत्तर भारत का सर्वाधिक प्रदूषित नगर रहा गाजियाबाद, दूसरे स्थान पर दिल्ली: सीएसई

Clean Air & Sustainable Mobility

Delhi Second-Most Polluted North Indian City. First Is…

प्रदूषित शहर: सीएसई ने देखा कि उत्तर भारतीय शहरों में पिछली सर्दियों में 11% कम पीएम2.5 स्तर दर्ज किया गया है। (फाइल) नई दिल्ली: नवीनतम वायु गुणवत्ता विश्लेषण के अनुसार, पिछली सर्दियों में 60 उत्तर भारतीय शहरों में गाजियाबाद सबसे प्रदूषित शहर था, इसके बाद दिल्ली का स्थान था। हालांकि, सीएसई ने पाया कि उत्तर भारतीय शहरों में पिछली सर्दियों में औसतन 11 फीसदी कम पीएम2.5 दर्ज किया गया था, लेकिन दिल्ली-एनसीआर के उप-क्षेत्र में सुधार सिर्फ आठ फीसदी था। “दिल्ली-एनसीआर में भी औसत 24 घंटे के प्रदूषण में मामूली वृद्धि देखी गई। कुल प्रदूषण के बावजूद दक्षिण (24 प्रतिशत) और मध्य भारतीय शहरों (7 प्रतिशत) के शहरों के बीच आधार रेखा से चरम प्रदूषण में काफी वृद्धि हुई। सर्दियों के औसत में गिरावट,” यह कहा। उत्तरी क्षेत्र में, श्रीनगर को हरियाणा में पलवल, पंजाब में बठिंडा और राजस्थान में अलवर के साथ अपेक्षाकृत कम सर्दियों के औसत वाले शहरों में सबसे स्वच्छ शहर पाया गया। पूर्वी क्षेत्र में, सबसे प्रदूषित शहर बिहार में सीवान था जबकि पश्चिम में, यह गुजरात में अंकलेश्वर था। मध्य क्षेत्र में, मध्य प्रदेश में सिंगरौली सबसे प्रदूषित शहर था, जबकि दक्षिण में, कर्नाटक में कलबुर्गी और तेलंगाना में हैदराबाद सबसे प्रदूषित शहर पाए गए। पूर्वोत्तर क्षेत्र में सबसे प्रदूषित शहर असम में गुवाहाटी था, जहां सर्दियों का औसत PM2.5 81 ug/m3 था। यह विश्लेषण सीएसई की अर्बन डेटा एनालिटिक्स लैब की 2021-22 शीतकालीन वायु गुणवत्ता ट्रैकर पहल के लिए किया गया था। “स्पष्ट रूप से, शीतकालीन प्रदूषण चुनौती मेगा शहरों या एक विशिष्ट क्षेत्र तक सीमित नहीं है। यह अब एक व्यापक राष्ट्रीय समस्या है जिसके लिए राष्ट्रीय स्तर पर तत्काल और जानबूझकर कार्रवाई की आवश्यकता है। सीएसई की कार्यकारी निदेशक (अनुसंधान और वकालत) अनुमिता रॉयचौधरी ने कहा, “वार्षिक वायु प्रदूषण वक्र और दैनिक स्पाइक्स को मोड़ने के लिए प्रदूषण के प्रमुख क्षेत्रों – वाहन, उद्योग, बिजली संयंत्र और अपशिष्ट प्रबंधन – में त्वरित सुधार और कार्रवाई की आवश्यकता है।” उन्होंने कहा कि जहां क्षेत्र राष्ट्रीय परिवेशी वायु गुणवत्ता मानकों को पूरा करने के लिए जूझ रहे हैं, वहीं सर्दियों की स्थिति समस्या को और बढ़ा रही है। “भले ही महामारी की स्थिति ने अधिकांश क्षेत्रों में समग्र प्रवृत्ति को गिरफ्तार कर लिया है, फिर भी एक मिश्रित प्रवृत्ति है। अपेक्षाकृत कम वार्षिक औसत प्रदूषण स्तर होने के बावजूद, सर्दियों के दौरान चरम प्रदूषण बढ़ सकता है। यह ठंडी और शांत सर्दियों की स्थिति के प्रभाव को इंगित करता है। और क्षेत्रीय प्रभाव भी,” सुश्री रॉयचौधरी ने कहा। सीएसई के अर्बन डेटा एनालिटिक्स लैब के प्रोग्राम मैनेजर अविकल सोमवंशी ने कहा कि एयर क्वालिटी मॉनिटरिंग सिस्टम के विस्तार के साथ कई क्षेत्रों में रीयल-टाइम एयर क्वालिटी डेटा की उपलब्धता में सुधार हुआ है, क्षेत्रीय अंतर और अद्वितीय का आकलन करना संभव हो गया है। क्षेत्रीय रुझान। सीएसई ने कहा कि इस वायु गुणवत्ता ट्रैकर पहल ने प्रत्येक क्षेत्र और अंतर-क्षेत्रीय अंतर के भीतर सहकर्मी से सहकर्मी की तुलना के लिए सर्दियों की हवा की गुणवत्ता को बेंचमार्क करने में मदद की है। विश्लेषण केंद्रीय प्रदूषण नियंत्रण बोर्ड (सीपीसीबी) के आधिकारिक ऑनलाइन पोर्टल, वायु गुणवत्ता प्रबंधन के लिए केंद्रीय नियंत्रण कक्ष से सार्वजनिक रूप से उपलब्ध दानेदार रीयल-टाइम डेटा (15 मिनट का औसत) पर आधारित है। यह डेटा 26 राज्यों और केंद्र शासित प्रदेशों के 161 शहरों में फैले कंटीन्यूअस एम्बिएंट एयर क्वालिटी मॉनिटरिंग सिस्टम (CAAQMS) के तहत 326 आधिकारिक स्टेशनों से लिया गया है।