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Smog tightens grip on Delhi-NCR; AQI season’s worst at 471 | Delhi Information

NEW DELHI: The layer of eye-stinging smog lingering over Delhi-NCR thickened on Friday, giving the solar an orange tint and lowering visibility to 200 metres in a number of areas of the area which were stricken by hazardous air pollution ranges since early November. Over 4,000 farm fires, which accounted for 35 per cent of Delhi’s air pollution on Friday, performed a serious position in pushing the 24-hour common Air High quality Index (AQI) to 471 by 4 pm, the worst this season to this point. It was 411 on Thursday. Smog covers Delhi-NCR; air high quality extreme amid unhelpful meteorological situations In line with an evaluation by the Delhi Air pollution Management Committee (DPCC), folks within the nationwide capital breathe the worst air between November 1 and November 15 yearly. Faridabad (460), Ghaziabad (486), Larger Noida (478), Gurugram (448) and Noida (488) additionally recorded extreme air high quality at 4pm. A smoggy view of Pink Fort as air high quality worsens within the metropolis, in New Delhi on Friday. (Picture: ANI) An AQI between zero and 50 is taken into account “good”, 51 and 100 “passable”, 101 and 200 “average”, 201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “extreme”. In line with the Central Air pollution Management Board (CPCB), the 24-hour common focus of lung-damaging superb particles often known as PM2.5 in Delhi-NCR crossed the 300 mark round midnight and stood at 381 micrograms per cubic metre at 4 pm (Friday), greater than six instances the secure restrict of 60 micrograms per cubic metre. The PM10 degree was recorded at 577 micrograms per cubic metre. In line with the Graded Response Motion Plan (GRAP), the air high quality is taken into account to be within the emergency class if the PM2.5 and PM10 ranges proceed to be above 300 micrograms per cubic metre and 500 micrograms per cubic metre respectively for 48 hours or extra. Officers from the India Meteorological Division (IMD) mentioned average fog and low temperatures within the morning — Delhi recorded a minimal temperature of 12.6 levels Celsius on Friday — and calm winds have been trapping pollution near the bottom. “Visibility ranges on the Indira Gandhi Worldwide Airport and the Safdarjung Airport dropped to 200-500 metres as a consequence of average fog. It (fog) has intensified on Friday as a consequence of excessive humidity,” an official mentioned. Inexperienced suppose tank Centre for Science and Atmosphere (CSE) had Wednesday mentioned the continuing smog episode is a public well being emergency and may very well be the longest in 4 years. The longer length of this yr’s smog, regardless of comparatively windier native situations, could be as a consequence of a scarcity of air pollution management measures within the metropolis, the CSE had mentioned in a report. In one other report, it mentioned automobiles accounted for greater than 50 per cent of Delhi’s air pollution through the early section of this yr’s winter, from October 24 to November 8. In line with the Ministry of Earth Sciences’ air high quality forecasting company SAFAR, stubble burning has accounted for a minimum of 25 per cent of Delhi’s PM2.5 air pollution for 9 days on the trot, beginning November 4. Gufran Beig, the founder mission director of SAFAR, mentioned stubble burning typically contributes in PM2.5 however this time its coarser particles in PM10 are additionally turning into a lead pollutant at a number of areas in Delhi. “This can be a new characteristic in winter interval. That is primarily due to particle progress mechanism as a consequence of excessive humidity at night time and elevated humidity through the day in all probability as a consequence of water sprinkling which additionally will increase the holding capability of the air. Since movement is common many PM2.5 particles are rising in the direction of PM10 (sic),” he mentioned. The share of farm fires in Delhi’s air pollution had elevated to 48 per cent on Sunday, the best since November 5, 2018, when it was recorded at 58 per cent. Final yr, the share of stubble burning in Delhi’s air pollution had peaked at 42 per cent on November 5. In 2019, crop residue burning accounted for 44 per cent of Delhi’s PM2.5 air pollution on November 1. Delhi Atmosphere Minister Gopal Rai Friday launched the second leg of a marketing campaign to regulate mud air pollution. On Thursday, he had launched a month-long marketing campaign to forestall open burning of waste and biomass within the metropolis in a bid to additional minimize down air pollution from native sources.

Smog Tightens Grip On Delhi-NCR, Air Quality Index Is Season's Worst

The layer of eye-stinging smog lingering over Delhi-NCR thickened on Friday, giving an orange tint to the solar and decreasing visibility to 200 metres at a number of locations within the area reeling beneath hazardous air pollution ranges since early November. Over 4,000 farm fires, which accounted for 35 per cent of Delhi’s air pollution on Friday, performed a serious position in pushing the 24-hour common Air Quality Index (AQI) to 471 by 4 pm, the worst this season thus far. It was 411 on Thursday. Town has recorded extreme air high quality on six of the final eight days after Diwali. Based on an evaluation by the Delhi Air pollution Management Committee (DPCC), individuals within the nationwide capital breathe the worst air between November 1 and November 15 yearly. Faridabad (460), Ghaziabad (486), Higher Noida (478), Gurugram (448) and Noida (488) additionally recorded extreme air high quality at 4 pm. An AQI between zero and 50 is taken into account “good”, 51 and 100 “passable”, 101 and 200 “reasonable”, 201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “extreme”. Based on the Central Air pollution Management Board (CPCB), the 24-hour common focus of lung-damaging tremendous particles often known as PM2.5 in Delhi-NCR crossed the 300 mark round midnight and stood at 381 micrograms per cubic metre at 4 pm (Friday), greater than six occasions the secure restrict of 60 micrograms per cubic metre. The PM10 stage was recorded at 577 micrograms per cubic metre. Based on the Graded Response Motion Plan (GRAP), the air high quality is taken into account to be within the emergency class if the PM2.5 and PM10 ranges proceed to be above 300 micrograms per cubic metre and 500 micrograms per cubic metre respectively for 48 hours or extra. Officers from the India Meteorological Division (IMD) stated reasonable fog and low temperatures within the morning — Delhi recorded a minimal temperature of 12.6 levels Celsius on Friday — and calm winds have been trapping pollution near the bottom. “Visibility ranges on the Indira Gandhi Worldwide Airport and the Safdarjung Airport dropped to 200-500 metres attributable to reasonable fog. It (fog) has intensified on Friday attributable to excessive humidity,” an official stated. Inexperienced suppose tank Centre for Science and Setting (CSE) had Wednesday stated the continuing smog episode is a public well being emergency and could possibly be the longest in 4 years. The longer period of this 12 months’s smog, regardless of comparatively windier native situations, may be attributable to a scarcity of air pollution management measures within the metropolis, the CSE had stated in a report. In one other report, it stated autos accounted for greater than 50 per cent of Delhi’s air pollution through the early part of this 12 months’s winter, from October 24 to November 8. Based on the Ministry of Earth Sciences’ air high quality forecasting company SAFAR, stubble burning has accounted for at the very least 25 per cent of Delhi’s PM2.5 air pollution for 9 days on the trot, beginning November 4. Gufran Beig, the founder challenge director of SAFAR, stated stubble burning typically contributes in PM2.5 however this time its coarser particles in PM10 are additionally changing into a lead pollutant at a number of areas in Delhi. “It is a new function in winter interval. That is primarily due to particle progress mechanism attributable to excessive humidity at evening and elevated humidity through the day in all probability attributable to water sprinkling which additionally will increase the holding capability of the air. Since circulate is common many PM2.5 particles are rising in direction of PM10 (sic),” he stated. The share of farm fires in Delhi’s air pollution had elevated to 48 per cent on Sunday, the very best since November 5, 2018, when it was recorded at 58 per cent. Final 12 months, the share of stubble burning in Delhi’s air pollution had peaked at 42 per cent on November 5. In 2019, crop residue burning accounted for 44 per cent of Delhi’s PM2.5 air pollution on November 1. Delhi Setting Minister Gopal Rai Friday launched the second leg of a marketing campaign to manage mud air pollution. On Thursday, he had launched a month-long marketing campaign to stop open burning of waste and biomass within the metropolis in a bid to additional reduce down air pollution from native sources.

गाड़ियां, इंडस्ट्री और पराली... दिल्ली-NCR की हवा में कहां से आता है कितना जहर?

ठंड आते ही एक बार फिर दिल्ली वायु प्रदूषण की गिरफ्त में आने लगी है. लोग इस प्रदूषण के लिए तमाम कारकों को जिम्मेदार मानते हैं. पराली से लेकर इंडस्ट्री .. रीन थिंक टैंक सेंटर फॉर साइंस एंड एनवायरनमेंट (CSE) के एक विश्लेषण के अनुसार 24 अक्टूबर से 8 नवंबर तक का आकलन है. इस साल की सर्दियों के शुरुआती चरण के... https://www.aajtak.in/education/news/photo/vehicles-accounted-more-than-50-per-cent-of-delhi-pollution-in-winter-detail-tedu-1355905-2021-11-12-3

New Delhi to consider curbing private vehicles to fight dangerous smog

New Delhi will consider restricting private vehicles to driving on alternate days from next week if severe air pollution continues to plague India's capital, its environment minister told Reuters on Thursday. As choking smog enveloped the city of 20 million people this month, its government initiated a clutch of measures such as shutting down schools, banning construction and garbage burning, allowing people to work from home, and launching various dust-control steps such as using fire trucks to spray water. "If air pollution levels stay high, we will look at new measures like the odd-even (vehicle) system," Gopal Rai, the capital's Minister for Environment, Forest and Wildlife Development, said in the interview. Under the odd-even system, private vehicles can be driven only on alternating days, depending on the last digit of their number plate. "We'll see if there's a need for a complete lockdown to tackle pollution. But these measures will not work if Delhi's neighbouring cities do not reciprocate," Rai said. More children are in hospital with breathing problems due to dangerously heavy smog in New Delhi, doctors warned on Wednesday https://www.reuters.com/world/india/india-temporarily-shuts-five-coal-fired-power-plants-around-new-delhi-2021-11-17, and the government shut five power stations and extended school closures to try to contain the crisis. Citing a new study by the Centre for Science and Environment research body, Rai said only 30% of pollutants in Delhi's air stem from the city itself, with the rest coming from the vast urban sprawl around it where tens of thousands of big and small industries operate. "Even if we take more measures in Delhi, air quality will not improve if our neighbouring states do not ensure that pollution levels come down in the cities that surround Delhi." More Swiss CO2 emissions: Small country, big footprint The much-lauded Swiss quality of life has a dark side – namely levels of consumerism and convenience that jack up the national carbon footprint. Rai said the federal government should call a meeting of Delhi and the state governments of neighbouring Punjab, Haryana and Uttar Pradesh to prepare "a joint action plan" to deal with air pollution. "Once the joint action plan is ready, there should be an independent panel to monitor the progress on the ground." Neither the Bharatiya Janata Party, which governs at the federal level, nor the main opposition Congress is in power in the capital, giving them little incentive to cooperate with the city government run by the Aam Aadmi (Common Man) Party (AAP).

Toxic smog blankets Delhi-NCR as AQI slips to 'severe' category again amid unfavourable meteorological conditions

At 10 am, Delhi recorded an AQI of 407. An IMD official said shallow fog and low temperatures in the morning trapped pollutants close to the ground and calm winds led to stagnant conditions A layer of smog shrouded Delhi-NCR on Thursday and partially blotted out the sun on Chhath Puja as the air quality slipped back into the 'severe' zone with unfavourable meteorological conditions aiding accumulation of pollutants, authorities said. Green think tank Centre for Science and Environment (CSE) said the ongoing smog episode is a public health emergency. "This requires urgent emergency action on key combustion sources (vehicles, industry, waste burning) and dust sources (construction and roads) to prevent further trapping of pollution when there is no wind to blow this away," said Anumita Roychowdhury, executive director, research and advocacy, CSE. At 10 am, Delhi recorded an Air Quality Index (AQI) of 407. Thirty-three of the 39 air quality monitoring stations in the national capital recorded air pollution levels in the severe category. The 24-hour average AQI was 372 on Wednesday. Ghaziabad (454), Greater Noida (404) and Noida (426) also recorded severe air quality at 10 am. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe". An official from the India Meteorological Department (IMD) said shallow fog and low temperatures in the morning, Delhi recorded the season's lowest temperature of 12.6 degrees Celsius on Thursday, trapped pollutants close to the ground and calm winds led to stagnant conditions. Visibility levels at the Indira Gandhi International Airport and the Safdarjung Airport dropped to 600-800 metres, he added. The CSE said the current severe smog episode in Delhi-NCR is expected to last for two more days. It also said the average daily contribution of smoke from farm fires from the middle of October to 8 November was the lowest in four years. "Compared to the first smog episode of the previous four years, the current smog has matched the duration of the first smog of 2018 and 2020 season, both lasted six days. If conditions do not improve, it might overtake the 2019 smog that lasted eight days," the CSE said. The longer duration of this year's smog despite relatively windier local conditions might be due to a lack of pollution control measures in the city, the green think tank said. On an average, the contribution of smoke to Delhi's daily PM2.5 from the middle of October to 8 November was the lowest in the last four years. "So far, it has recorded an average of 12 percent (farm fire share) per day in contrast to 17 percent per day in 2020, 14 percent per day in 2019 and 16 percent per day in 2018 (as reported by SAFAR)," the CSE said. The share of farm fires in Delhi's pollution rose to 48 percent on Sunday, the highest since 5 November, 2018, when it was recorded at 58 percent. Last year, the share of stubble burning in Delhi's pollution had peaked at 42 percent on 5 November. In 2019, crop residue burning accounted for 44 percent of Delhi's PM 2.5 pollution on 1 November.

Delhi’s worst Diwali night in the past 5 years, first smog episode to last for seven days: CSE

It’s been five days and NCR-Delhi is wrapped in its first episode of winter smog which is expected to last for two more days. Diwali firecrackers, unfavourable weather conditions, and farm fires have triggered the first episode. On November 7, the contribution of farm fires to Delhi’s air pollution was 48%, which has now come down to 27%. More details here. It’s been five days and the national capital region of Delhi and the Indo-Gangetic plains continue to be enveloped in the season’s first smog episode, an air quality data assessment by the New Delhi-based Centre for Science and Environment (CSE) shows. As per the research and the advocacy group, the duration of the ongoing smog episode is expected to be longer than seven days. While the smog episodes have become an annual ritual for this region, with stubble farming in Punjab, Haryana, and parts of Uttar Pradesh, CSE’s assessment shows the contribution of farm fires this year has been the lowest in the past four years. Factors contributing to smog include unfavourable weather conditions, farm fires, and Diwali crackers that triggered the first episode. As per the CSE analysis released on November 10, PM 2.5 (particulate matter) concentration on Diwali night (Nov 4-5; 8pm-8am) has been the most intense since 2017. Pollution levels on Diwali night were 4.5 times the average night-time levels recorded in the week preceding Diwali. Also Read : La Niña, coupled with extreme cold this winter, to peak air pollution in north India, warn weather experts This year, 26 of 38 operational monitoring stations hit the 1,000 ug/m3 (micrograms per cubic meter of air) mark. In 2020, 23 out of the 38 had hit the mark while in 2019 the number stood at 22 stations. As per the World Health Organization (WHO), the acceptable guidelines value is 10 ug/m3. The non-profit also outlined that the nitrogen dioxide (NO2) levels were lower on Diwali night as compared to nights preceding it which indicates congestion and high traffic conditions in the city. It also reflected less traffic on Diwali night itself. Talking about the contribution of smoke from farm stubbles, Anumita Roychowdhury, executive director, research and advocacy at CSE added that while the average daily contribution of smoke from farm stubble fires from the middle of October to November 8 this year has been the lowest in the last four years but since November 6, its contribution has peaked to reach 48 per cent on November 7. Credit : SAFAR, IITM Pune As of today, November 11, the contribution of farm fires to Delhi’s pollution stands at 27 per cent. However, the total number of fires – 5,317 – is much higher than last year. Credit : SAFAR, IITM Pune This analysis is based on the real time data available from the current working air quality monitoring stations in Delhi-NCR and the larger Indo-Gangetic Plain. Also Read : Ahead of Diwali, Delhi’s air quality dips to ‘very poor’ category; likely to remain so till Nov 6 Stubble burning and pollution contribution The contribution of smoke to Delhi’s daily PM2.5 during the middle of October to November 8 has been the lowest in the last four years – 12 per cent in contrast to 17 per cent per day in 2020, 14 per cent in 2019 and 16 per cent in 2018, CSE’s assessment notes. Peak contribution of smoke to Delhi’s PM levels was recorded on November 7 when it hit 48 per cent, which is the second highest daily contribution percentage recorded since such estimation was started by the System of Air Quality and Weather Forecasting and Research (SAFAR), developed by Indian Institute of Tropical Meteorology, Pune, in 2018. CSE also pointed out that this unusually high percentage on November 7, 2021 didn’t spike Delhi’s PM2.5 levels. Also Read : Severe peak in winter smog expected in Delhi, quick action required to counter this: CSE Report In its earlier report released on October 23, CSE had predicted that smoke from stubble burning is going to be concentrated in the month of November because the delayed monsoon had prevented the farmers from burning the stubble in October. Stubble burning taking place in Sangrur district of Punjab. Photo by : Sarah Khan Talking to Gaon Connection, Avikal Somvanshi, the programme manager at the Urban Data Analytic Lab at CSE had said, “Usually, the smog that occurs in the end October and the beginning of November is driven by stubble burning in Punjab and Haryana, however, the delayed monsoon this year stalled the stubble burning.” Explaining how this will have an effect on Delhi’s smog, he added, “This implies that the stubble will be burnt in a concentrated manner, at the end of the month. The quantum of smoke coming to Delhi would be in higher concentration which will lead to a peak in smog.” The advent of the monsoon’s retreat date almost perfectly coincided with the start of bad air days in Delhi. Bad air days means the PM2.5 average breaches the standard and remains above that for the rest of the season. As per the Central Pollution Control Board (CPCB) air quality standard (AQI) is categorised into six parts. AQI between 0-50 is considered ‘good’, ‘51-100’ is satisfactory, 101-200 is ‘moderate’, 201-300 is ‘poor’, 301-400 is ‘very poor’, and between 401-500 is ‘severe.’

स्मॉग के पहले गंभीर दौर की चपेट में है एनसीआर, 4-वर्षों में सबसे लंबा हो सकता है: सीएसई

नई दिल्ली: राजधानी दिल्ली के लिए फिलहाल चल रहा स्मॉग का दौर बीते तीन सालों में सबसे लंबा हो सकता है। विज्ञान एवं पर्यावरण केन्द्र (सीएसई) ने प्रदूषण के डाटा का विश्लेषण करके इसकी आशंका जाहिर की है। संस्था ने दिल्ली में प्रदूषण की रोकथाम के उठाए गए कदमों को भी अपर्याप्त बताया है। दिल्ली के लोग पिछले छह दिनों से लगातार ही प्रदूषण से भरी जहरीली हवा में सांस ले रहे हैं। अगले तीन दिन भी इसे राहत मिलने के आसार नहीं दिख रहे हैं। संस्था के मुताबिक वर्ष 2018 और वर्ष 2020 में पहला स्मॉग का समय लगातार छह दिन तक चला था। जबकि, वर्ष 2019 में पहला स्मोग एपीसोड लगातार आठ दिनों तक चला था। इस बार अभी तक जो मौसम की स्थिति और प्रदूषण का स्तर दिख रहा है, उसके आधार पर संस्था का अनुमान है कि इस बार का स्मॉग का समय पिछले तीन सालों से ज्यादा लंबा खिंच सकता है। संस्था के मुताबिक इस बार के स्मॉग एपीसोड में वर्ष 2018 की तुलना में नौ फीसदी ज्यादा, वर्ष 2019 की तुलना में तीन फीसदी ज्यादा और वर्ष 2020 की तुलना में सात फीसदी ज्यादा प्रदूषण है।

दिल्ली में कोहरे का कहर, वायु गुणवत्ता ‘गंभीर’ श्रेणी में

11 नवंबर (भाषा) दिल्ली- राष्ट्रीय राजधानी क्षेत्र (एनसीआर) में बृहस्पतिवार को प्रदूषण युक्त कोहरे की परत छाने से छठ पूजा के दौरान श्रद्धालुओं को सूर्य के दर्शन आंशिक रूप से ही हो पाए। शहर में मौसम संबंधी प्रतिकूल परिस्थितियों के कारण एक बार फिर वायु गुणवत्ता ‘गंभीर’ श्रेणी में पहुंच गई। विज्ञान एवं पर्यावरण केंद्र (सीएसई) ने कहा कि कोहरा एक सार्वजनिक स्वास्थ्य आपात स्थिति है। सीएसई की कार्यकारी निदेशक (अनुसंधान) अनुमिता रॉयचौधरी ने कहा, ‘‘इस गंभीर स्थिति से निपटने के लिए उन मोर्चों पर तत्काल कार्रवाई की आवश्यकता है, जिससे प्रदूषण अधिक फैलता है जैसे वाहनों से, कुछ उद्योगों से, अपशिष्ट जलाने से....। वहीं, भवन निर्माण, सड़क जैसे धूल फैलाने वाले स्रोतों पर तत्काल कार्रवाई करने की आवश्यकता है।’’ दिल्ली में सुबह 10 बजे वायु गुणवत्ता सूचकांक (एक्यूआई) 407 दर्ज किया गया। राष्ट्रीय राजधानी के 39 वायु गुणवत्ता निगरानी केन्द्रों में से 33 में वायु गुणवत्ता ‘गंभीर’ श्रेणी में दर्ज की गई। बुधवार को 24 घंटे का औसतन एक्यूआई 372 था। एक्यूआई सुबह 10 बजे गाजियाबाद में 454, ग्रेटर नोएडा में 404 और नोएडा में 426 था। एक्यूआई को शून्य और 50 के बीच 'अच्छा', 51 और 100 के बीच 'संतोषजनक', 101 और 200 के बीच 'मध्यम', 201 और 300 के बीच 'खराब', 301 और 400 के बीच 'बहुत खराब' और 401 और 500 के बीच 'गंभीर' श्रेणी में माना जाता है। भारत मौसम विज्ञान विभाग (आईएमडी) के एक अधिकारी ने बताया कि सुबह के समय हल्के कोहरे के साथ ही तापमान में गिरावट दर्ज की गई। दिल्ली में बृहस्पतिवार सुबह न्यूनतम तापमान 12.6 डिग्री सेल्सियस दर्ज किया गया, जो इस मौसम का अभी तक का सबसे कम तापमान है। उन्होंने बताया कि इंदिरा गांधी अंतरराष्ट्रीय हवाई अड्डे और सफदरजंग हवाई अड्डे पर दृश्यता में 600 से 800 मीटर तक गिरावट दर्ज की गई। सीएसई ने कहा कि दिल्ली-एनसीआर में मौजूदा कोहरे का कहर अगले दो-तीन तक जारी रह सकता है।

दिल्ली की हवा से सांस लेने में दिक्क़त, एक्सपर्ट बोले- 'ये हेल्थ इमरजेंसी, गंभीर नहीं हुए तो बड़ा खतरा'

पिछले कई दिनों से दिल्ली की हवा में 'जहर' घुला हुआ है, जिसकी वजह से लोगों को कई तरह की परेशानियों का सामना करना पड़ रहा है. हालांकि, एयर क्वालिटी इंडेक्स (AQI) में लगातार सुधार आ रहा है, लेकिन अब भी यह 'बहुत खराब' श्रेणी में बनी हुई है. इस बीच, ग्रीन थिंक-टैंक सेंटर फॉर साइंस एंड एनवायरनमेंट (सीएसई) ने कहा है कि स्मॉग ने दिल्ली और राष्ट्रीय राजधानी क्षेत्र (एनसीआर) को प्रभावित किया है और अगले दो दिनों तक हालात के ऐसे ही रहने की आशंका है. दिल्ली में मौसमी धुंध काफी घनी है. अक्टूबर के मध्य से 8 नवंबर तक पराली दैनिक योगदान पिछले चार वर्षों में सबसे कम रहा है. दिल्ली की इस स्थिति को लेकर एक्सपर्ट ने इसे इमरजेंसी करार दिया और तुरंत एक्शन लेने की जरूरत बताई. सीएसई की कार्यकारी निदेशक (अनुसंधान और वकालत) अनुमिता रॉयचौधरी ने कहा, "मौसम की प्रतिकूल स्थिति पराली जलाने और पटाखों की वजह से शुरू हुई है." सीएसई ने बताया कि पिछले चार सालों में स्मॉग की तुलना करें तो वर्तमान स्थिति साल 2018 और 2020 की स्थिति जैसी ही है. दोनों ही सालों में छह दिनों तक स्मॉग रहा था. इस साल अब तक स्मॉग की औसत तीव्रता 329 माइक्रोग्राम प्रति क्यूबिक मीटर प्रति दिन है, जो कि 2020 स्मॉग (7 फीसदी) और 2019 स्मॉग (3 फीसदी) की तुलना में कम है. यह 2018 के स्मॉग (करीब 9 फीसदी) की तुलना में अधिक तीव्र है.

दिल्ली में कोहरे का कहर, ‘गंभीर’ श्रेणी में वायु गुणवत्ता

नई दिल्ली। दिल्ली और राष्ट्रीय राजधानी क्षेत्र (एनसीआर) में बृहस्पतिवार को प्रदूषण युक्त कोहरे की परत छाने से छठ पूजा के दौरान श्रद्धालुओं को सूर्य के दर्शन आंशिक रूप से ही हो पाए। शहर में मौसम संबंधी प्रतिकूल परिस्थितियों के कारण एक बार फिर वायु गुणवत्ता ‘गंभीर’ श्रेणी में पहुंच गई। विज्ञान एवं पर्यावरण केंद्र (सीएसई) ने कहा कि कोहरा एक सार्वजनिक स्वास्थ्य आपात स्थिति है। सीएसई की कार्यकारी निदेशक (अनुसंधान) अनुमिता रॉयचौधरी ने कहा, ‘‘इस गंभीर स्थिति से निपटने के लिए उन मोर्चों पर तत्काल कार्रवाई की आवश्यकता है, जिससे प्रदूषण अधिक फैलता है जैसे वाहनों से, कुछ उद्योगों से, अपशिष्ट जलाने से….। वहीं, भवन निर्माण, सड़क जैसे धूल फैलाने वाले स्रोतों पर तत्काल कार्रवाई करने की आवश्यकता है।’’ दिल्ली में सुबह 10 बजे वायु गुणवत्ता सूचकांक (एक्यूआई) 407 दर्ज किया गया। राष्ट्रीय राजधानी के 39 वायु गुणवत्ता निगरानी केन्द्रों में से 33 में वायु गुणवत्ता ‘गंभीर’ श्रेणी में दर्ज की गई। बुधवार को 24 घंटे का औसतन एक्यूआई 372 था। एक्यूआई सुबह 10 बजे गाजियाबाद में 454, ग्रेटर नोएडा में 404 और नोएडा में 426 था। एक्यूआई को शून्य और 50 के बीच ‘अच्छा’, 51 और 100 के बीच ‘संतोषजनक’, 101 और 200 के बीच ‘मध्यम’, 201 और 300 के बीच ‘खराब’, 301 और 400 के बीच ‘बहुत खराब’ और 401 और 500 के बीच ‘गंभीर’ श्रेणी में माना जाता है। भारत मौसम विज्ञान विभाग (आईएमडी) के एक अधिकारी ने बताया कि सुबह के समय हल्के कोहरे के साथ ही तापमान में गिरावट दर्ज की गई। दिल्ली में बृहस्पतिवार सुबह न्यूनतम तापमान 12.6 डिग्री सेल्सियस दर्ज किया गया, जो इस मौसम का अभी तक का सबसे कम तापमान है। उन्होंने बताया कि इंदिरा गांधी अंतरराष्ट्रीय हवाई अड्डे और सफदरजंग हवाई अड्डे पर दृश्यता में 600 से 800 मीटर तक गिरावट दर्ज की गई। सीएसई ने कहा कि दिल्ली-एनसीआर में मौजूदा कोहरे का कहर अगले दो-तीन तक जारी रह सकता है।

Diwali Pollution in Delhi: दिवाली की रात 8 से सुबह 8 बजे तक सबसे जहरीली रही हवा

नई दिल्ली: सीजन का पहला स्मॉग एपीसोड दिल्ली एनसीआर में शुरू हो चुका है। यह अगले दो दिनों तक और जारी रह सकता है। इस स्मॉग ने गंगा के मैदानी इलाकों को लगभग पूरी तरह कवर कर लिया है। सीएसई ने राजधानी के पहले स्मॉग एपीसोड पर अपनी विश्लेषण रिपोर्ट जारी की है। सीएसई की एग्जीक्यूटिव डायरेक्टर अनुमिता रायचौधरी के अनुसार राजधानी में पहला स्मॉग एपीसोड कई वजहों की वजह से हो रहा है। इसमें खराब मौसम की स्थितियां, पराली और पटाखों का जलना शामिल हैं। हालांकि राजधानी में चिंताजनक स्थिति वाली स्मॉग छाई हुई है लेकिन पराली के धुएं ने अक्टूबर के मध्य से 8 नवंबर तक पिछले चार सालों में सबसे कम प्रभावित किया है। लेकिन 7 नवंबर को पराली प्रदूषण 48 प्रतिशत तक पहुंच गया सीएसई अर्बन लैब के प्रोग्राम मैनेजर अविकल सोमवंशी के अनुसार राजधानी के पहले स्मॉग एपीसोड में जहां पीएम 2.5 का स्तर कहीं अधिक रहा, वहीं ओजोन, कार्बन मोनोऑक्साइड और नाइट्रोजन डायऑक्साइड का स्तर भी चिंताजनक बना रहा। सल्फर डाइ ऑक्साइड और नाइट्रोजन डाइ ऑक्साइड के स्तर में आतिशबाजी की वजह से दिवाली की रात अचानक से तेजी आई। सीजन का पहला स्मॉग एपीसोड 4 नवंबर को पीएम 2.5 का स्तर 250 एमजीसीएम पर पहुंचा। यह अपने अधिकतम स्तर पर 5 नवंबर को पहुंचा जब इसका स्तर 501 एमजीसीएम हो गया। इसमें बाद इसमें कमी आई और यह 8 नवंबर को 256 एमजीसीएम तक पहुंच गया। इसके बाद अब फिर से इसमें इजाफा होने लगा और यह 9 नवंबर को 264 एमजीसीएम पर पहुंच गया। पिछले चार साल के सीजन के पहले स्मॉग एपीसोड को देखें तो यह 2018 और 2020 से काफी मेल खाता है। यह दोनों स्मॉग एपीसोड सात दिन तक चले थे। सीएसई के अनुसार यदि स्थितियों में सुधार नहीं होता तो यह 2019 के रेकार्ड को तोड़ सकता है जब पहला स्मॉग एपीसोड आठ दिन तक चला था।

दिल्ली में मौसम की पहली घनी घुंध, 4 वर्षों में सबसे लंबे समय तक बने रहने का अनुमान : रिपोर्ट

दिल्ली और राष्ट्रीय राजधानी क्षेत्र में मौसम की पहली घनी धुंध छा गयी है और इसके दो और दिनों तक रहने की आशंका है. विज्ञान एवं पर्यावरण केंद्र (सीएसई) ने बुधवार को यह जानकारी दी. हालांकि, दिल्ली में मौसमी धुंध घनी है लेकिन अक्टूबर के मध्य से आठ नवंबर तक पराली जलाने से होने वाले धुएं का औसत दैनिक योगदान पिछले चार वर्षों में सबसे कम रहा है. यह भी पढ़ें सीएसई में अनुसंधान की कार्यकारी निदेशक अनुमिता रॉय चौधरी ने कहा, ‘जाहिर तौर पर मौसम की प्रतिकूल परिस्थितियों (ठंडी और शांत हवाओं) के संयुक्त असर, पराली और पटाखे जलाने से मौसम की धुंध छा गयी है.’ दिल्ली में मौसम का सबसे कम तापमान, वायु गुणवत्ता ‘बेहद खराब’ सीएसई ने बताया कि पिछले चार वर्षों की धुंध की पहली घटना की तुलना करने पर मौजूदा धुंध 2018 और 2020 की पहली धुंध की अवधि से मिलती है जो छह दिनों तक रही थी. अगर परिस्थितियों में सुधार नहीं होता है तो यह 2019 की धुंध से भी अधिक समय तक रह सकती है जो आठ दिनों तक रही थी. दिल्ली-एनसीआर में ‘खतरनाक’ स्तर पर पहुंची हवा, एक्यूआई 382 पर सीएसई ने कहा, ‘दिल्ली के औसतन दैनिक पीएम2.5 में अक्टूबर से आठ नवंबर के दौरान धुएं का योगदान पिछले चार वर्षों में सबसे कम रहा है. अभी तक यह प्रतिदिन औसतन 12 प्रतिशत दर्ज किया गया जबकि पिछले साल 17 फीसदी, 2019 में 14 फीसदी और 2018 में 16 प्रतिशत था.’ हवा में प्रदूषण से बढ़ती चिंता, प्रदूषण नियंत्रण बोर्ड के दिशा निर्देश जारी

Delhi could witness worst smog episode in 2021 , longest in four years: Report

According to Anumita Roychowdhury, Executive Director, CSE research and advocacy, the season's first smog incident was caused by a combination of poor weather, stubble burning, and firecrackers. According to the Centre for Science and Environment, this year might be the worst pollution event for Delhi and its surrounding territories. According to the green think-tank, haze in the Delhi-NCR area is predicted to continue for two days. As a result, the first significant pollution outbreak in Delhi might be the longest in four years. According to Anumita Roychowdhury, Executive Director, CSE research and advocacy, the season's first smog incident was caused by a combination of poor weather, stubble burning, and firecrackers. According to CSE statistics, the average daily contribution of smoke from agricultural fires was the lowest in the past four years between the middle of October and November 8. On November 7, the contribution of smoke to Delhi's PM level peaked at 48 per cent. According to the green think-tank, the first haze event of the year has already lasted six days, matching the durations of 2018 and 2020. However, if conditions do not improve, this might rise considerably higher, even breaking the 2019 record of eight days. So far this year, the average smog intensity is 329 micrograms per cubic metre every day. Also Read | Delhi air quality 'severe'; national capital tops 10 most polluted cities in India This is 7% lower than the 2020 pollution level and 3% lower than the 2019 smog level. It is, nevertheless, roughly 9% more severe than the pollution of 2018. Despite comparatively windier local circumstances, the green think tank criticised the city's lack of pollution control measures for the city's extended length of smog events. The investigation was conducted using real-time data from the currently operational air quality monitoring stations in Delhi-NCR and the broader Indo-Gangetic Plain.

Center for science and environment cse warns for next few days as it will be difficult to breathe due to smog and poor aqi jagran special

New Delhi. If you live in Delhi NCR then you may have to face dense smog for the next few days. According to a report by the Center for Science and Environment (CSE), for the first time this season, a thick blanket of haze will be seen over the entire Indo-Gangetic plane for the next seven days. The main reason for this smog is the smoke emanating from crackers and stubble burning on Diwali and the changing weather. This year is the lowest recorded stubble smoke in the last four years. A deadly mix of toxic gases including ozone, carbon monoxide, nitrogen dioxide and sulfur dioxide are being recorded on a large scale in addition to PM 2.5 in the haze being recorded in Delhi and NCR. The level of PM 2.5 in the air was highest from 8 am to 8 am on Diwali night since 2017. At the same time, the proportion of sulfur dioxide and nitrogen oxide in the air has also been very high, which shows the effect of firecrackers. According to CSAE, in view of the dense smog in the air, immediate emergency steps are needed to prevent further increase in pollution. At the same time, governments also need to adopt a long-term policy. Read also: If the stubble is lit, the earnings will decrease, everyone will suffer along with the farmers The average level of PM 2.5 in Delhi’s air remains up to 250 micrograms per cubic meter. On November 05, the level of PM 2.5 in the air had reached 501 micrograms per cubic meter. Under the standards, the level of PM 2.5 in the air should not exceed 60 micrograms per cubic metre. By November 8, the level of PM 2.5 in the air had come down to 256 micrograms per cubic meter. But even now it remains above dangerous levels. On November 8 this year, the level of stubble smoke in the air was the lowest recorded in the last four years. On November 8 this year, its level in the air was 12 percent. Its level in the air in 2020 was 17 percent. It was 14 percent in 2019 and 16 percent in 2018. The level of smog in the air of Delhi was highest on 7th November. It had reached 48 percent. This was the highest in 2018 after the formation of SAFAR, an organization that monitors pollution levels in Delhi’s air. On November 5, the level of smog in Delhi’s air had reached 58 percent. Read also: Data Story: The smoke of firecrackers is heavy on your breath, this report revealed Dangerous gases increased in the air According to the CSE report, the level of hazardous gases in the air of Delhi is also increasing continuously due to pollution. The level of ozone gas in the air is being recorded more than the standards. At the same time, due to smog, the level of carbon monoxide in the air has also remained above the standards. Most polluted night of Diwali in last five years According to the CSE report, in the last five years, the level of pollution in the air was very high this year from 8 pm on Diwali to 8 am the next day. In the last five years, the average level of PM 2.5 in the air during this period was 747 micrograms per cubic meter, which is 22 percent higher than in 2020. At the same time, this level of PM 2.5 in the air on Diwali night is 4.5 times more than the normal level.

First severe smog hits Delhi, national capital could witness season's longest since 2017: Report

CSE has blamed the lack of pollution control measures for a longer duration of smog episodes in Delhi despite relatively windier local conditions. This year could be the worst smog episode for Delhi and its neighbouring areas, warn the green think-tank Centre for Science and Environment (CSE). According to the green think-tank, smog is expected to last for another two days in the Delhi-NCR regions. This means that the first severe smog episode in Delhi could be the longest in four years. According to Anumita Roychowdhury, Executive Director, CSE research and advocacy, the season's first smog episode has been triggered by the combined effect of unfavourable weather conditions, stubble burning and firecrackers. On the other hand, CSE data says the average daily contribution of smoke from farm fires has been the lowest in the last four years during the time period from the middle of October to November 8. The peak contribution of smoke to Delhi's PM level was recorded on November 7 when it hit 48%. The green think-tank says this year's first smog episode has already lasted six days which matches that of 2018 and 2020. However, this could further increase if conditions do not improve and may even overtake the 2019 record of eight days. The average intensity of the smog this year so far is 329 micrograms per cubic metre per day. This is lower by 7% than that of 2020 smog and by 3% than that of 2019 smog. However, it is more intense than that of 2018 smog by about 9%. The green think tank has blamed the lack of pollution control measures in the city for a longer duration of smog episodes in Delhi despite relatively windier local conditions. The analysis has been done on the basis of real-time data available from the current working air quality monitoring stations in Delhi-NCR and the larger Indo-Gangetic Plain.

First severe smog hits Delhi, nation’s capital could experience longest season since 2017: report

This year could be the worst smog episode for Delhi and its neighboring regions, warns the green think tank Center for Science and Environment (CSE). Smog is expected to last another two days in Delhi-NCR areas, according to the Green Think Tank. This means that the first episode of severe smog in Delhi could be the longest in four years. According to Anumita Roychowdhury, Executive Director, Research and Advocacy at CSE, the first smog episode of the season was triggered by the combined effect of inclement weather, stubble burning and firecrackers. See also Alex Murdaugh accused of defrauding sons of deceased cleaning lady On the other hand, CSE data indicates that the average daily contribution of smoke from farm fires has been the lowest over the past four years during the period from mid-October to November 8. The maximum contribution of smoke to Delhi’s particulate level was recorded. on November 7 when it reached 48%. The green think tank says this year’s first smog episode has already lasted six days, matching that of 2018 and 2020. See also Hugo Lloris admits "there is always a cloud above us before games" regarding the coronavirus However, that could increase further if conditions do not improve and could even surpass the 2019 record by eight days. The average smog intensity this year so far is 329 micrograms per cubic meter per day. This figure is 7% lower than the 2020 smog figure and 3% lower than the 2019 smog figure. However, it is more intense than the 2018 smog figure by about 9%. See also Storm Watch: Timeline of the rare three-state area of ​​Nor'easter soaking in October The Green Think Tank blamed the city’s lack of pollution control measures on the longer duration of smog episodes in Delhi despite relatively windier local conditions. The analysis was carried out on the basis of real-time data available from the air quality monitoring stations currently operating in Delhi-NCR and the greater Indo-Gangetic plain.