Cse In News

Clean Air & Sustainable Mobility

Delhi in grip of first smog episode of season may be longest in 4 years: Report

New Delhi: Green think-tank Center for Science and Environment (CSE) on Wednesday said the first severe smog episode has affected Delhi and the National Capital Region (NCR) and is expected to last for the next two days. Although the seasonal haze in Delhi is intense, the average daily contribution of smoke from farm fires from mid-October to November 8 has been the lowest in the past four years. CSE’s executive director (research and advocacy) Anumita Roychowdhury said, “Presumably, the first episode of the season has started with a combined effect of adverse weather conditions (cold and calm winds and inversion), stubble burning and firecrackers.” Compared to the first smog episode of the previous four years, the current smog corresponds to the first smog period of the 2018 and 2020 seasons – both lasting six days. The CSE said that if the situation does not improve, it may go beyond the eight-day haze of 2019. The average smog intensity so far this year is 329 micrograms per cubic meter per day, which is lower than the 2020 smog (7%) and 2019 smog (3%). It is more intense than the 2018 smog (around 9 per cent). The green think tank said this year’s haze could be prolonged despite relatively windy local conditions, due to a lack of pollution control measures in the city. “While very high concentrations of PM2.5 have attracted attention, levels of gases – ozone, CO or NO2 – remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night , which reflects the increasing pollution load from firecrackers. The concentration of PM2.5 on Diwali night (8 pm to 8 am) has been highest since 2017. The analysis is based on real-time data available from currently operational air quality monitoring stations in Delhi-NCR and the larger Indo-Gangetic plain. “On an average, the contribution of smoke to Delhi’s daily PM2.5 during mid-October to November 8 has been the lowest in the last four years. So far, it has been recorded at an average of 12 per cent per day, as against 17 per cent per day in 2020, 14 per cent per day in 2019 and 16 per cent per day in 2018 (as reported by SAFAR). CSE said. “If converted into absolute concentrations, the per day contribution of smoke so far this year was 26 micrograms per cubic meter as compared to 35 micrograms per cubic meter in 2020, 40 micrograms per cubic meter in 2019 and 31 micrograms per cubic meter in 2018. meter was ,” it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on November 7, when it reached 48 per cent. This is the second highest daily contribution percentage recorded since such an estimate was introduced by SAFAR in 2018. The highest single day contribution percentage has been recorded at 58 percent as on November 5, 2018. “The ongoing smog episode is a public health emergency. This requires immediate emergency action on major combustion sources (vehicles, industry, waste burning) and dust sources (construction and roads) to prevent further trapping of pollution when there is no air to remove it. We need a situation of pollution-source-wise and hotspot-wise action,” Roychowdhury said.

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said on Wednesday. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. Predictably, the season’s first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don’t improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year’s smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. You might also like Taliban Gives Thumbs up to NSA-level Meet, Wants Economic Projects to Start, Jobs for Afghans Four Singareni Workers Die as Mine Roof Caves in at SRP-3 Srirampur in Mancherial district Mullaperiyar Dam Issue is Getting Hot Again in Kerala While very high concentrations of PM2.5 have hogged attention, the levels of gases ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017,” said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. On an average, contribution of smoke to Delhi’s daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR), the CSE said. If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018, it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018. 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. We need pollution-source-wise and hotspot-wise status of action, Roychowdhury said.

Clean Air & Sustainable Mobility

Delhi in grip of season’s 1st smog episode, could possibly be longest in 4 yrs: Report

New Delhi: The primary extreme smog episode has hit Delhi and the Nationwide Capital Area (NCR) and is anticipated to final for one more two days, inexperienced think-tank Centre for Science and Surroundings (CSE) stated on Wednesday. Get Grubhub+ Student free with your Prime Student membership Though the seasonal smog in Delhi is intense, the typical every day contribution of smoke from farm fires from the center of October to November 8 has been the bottom in final 4 years, it stated. episode has been triggered by the mixed impact of unfavourable climate circumstances (cool and calm winds and inversion), stubble burning and firecrackers,” stated Anumita Roychowdhury, govt director, analysis and advocacy, CSE. In comparison with the primary smog episode of earlier 4 years, the present smog has matched the length of the primary smog of 2018 and 2020 season — each lasted six days. If circumstances do not enhance, it would overtake the 2019 smog that lasted eight days, the CSE stated. The typical depth of the smog this yr thus far is 329 microgram per cubic metre per day, which is decrease than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It’s extra intense than the 2018 smog (about 9 per cent). Lingering on of this yr’s smog for longer length regardless of comparatively windier native circumstances could be as a result of lack of air pollution management measures within the metropolis, the inexperienced assume tank stated. “Whereas very excessive concentrations of PM2.5 have hogged consideration, the degrees of gases – ozone, CO or NO2 — have remained elevated throughout this smog episode. Additionally, the ratio of SO2 to NO2 elevated on Diwali evening indicating elevated air pollution load from firecrackers. The PM2.5 focus on Diwali evening (8 pm to eight am) has been probably the most intense since 2017,” stated Avikal Somvanshi, programme supervisor, City Lab, CSE. This evaluation is predicated on the true time knowledge out there from the present working air high quality monitoring stations in Delhi-NCR and the bigger Indo-Gangetic Plain. “On a median, contribution of smoke to Delhi’s every day PM2.5 throughout center of October to November 8 has been the bottom within the final 4 years. Up to now, it has recorded on a median 12 per cent per day in distinction to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR),” the CSE stated. “If transformed to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this yr thus far in comparison with 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018,” it stated. Nonetheless, the height contribution of smoke to Delhi’s PM degree was recorded on seventh November when it hit 48 per cent. This the second highest every day contribution share recorded since such estimation was began by SAFAR in 2018. The best single day contribution share has been 58 per cent recorded on November 5, 2018. “The continuing smog episode is a public well being emergency. This requires pressing emergency motion on key combustion sources (autos, business, waste burning) and mud sources (development and roads) to forestall additional trapping of air pollution when there is no such thing as a wind to blow this away. We want pollution-source-wise and hotspot-wise standing of motion,” Roychowdhury stated.

Clean Air & Sustainable Mobility

Delhi in grip of season's first severe smog episode, likely to be longest in 4 years: CSE

The archetypal terrible smog occurrence has deed Delhi and the National Capital Region (NCR) and is expected to past for different 2 days, greenish think-tank Centre for Science and Environment (CSE) said connected Wednesday. Even though the seasonal smog successful Delhi is intense, the mean regular publication of fume from workplace fires from the mediate of October to November 8 has been the lowest successful past 4 years, it said. "Predictably, the season's archetypal occurrence has been triggered by the combined effect of unfavourable upwind conditions (cool and calm winds and inversion), stubble burning and firecrackers," said Anumita Roychowdhury, enforcement director, probe and advocacy, CSE. Compared to the archetypal smog occurrence of erstwhile 4 years, the existent smog has matched the duration of the archetypal smog of 2018 and 2020 play -- some lasted six days. If conditions don't improve, it mightiness overtake the 2019 smog that lasted 8 days, the CSE said. The mean strength of the smog this twelvemonth truthful acold is 329 microgram per cubic metre per day, which is little than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is much aggravated than the 2018 smog (about 9 per cent). Lingering connected of this year's smog for longer duration contempt comparatively windier section conditions mightiness beryllium owed to the deficiency of contamination power measures successful the city, the greenish deliberation vessel said. "While precise precocious concentrations of PM2.5 person hogged attention, the levels of gases - ozone, CO oregon NO2 -- person remained elevated during this smog episode. Also, the ratio of SO2 to NO2 accrued connected Diwali nighttime indicating accrued contamination load from firecrackers. The PM2.5 attraction connected Diwali nighttime (8 p.m. to 8 am) has been the astir aggravated since 2017," said Avikal Somvanshi, programme manager, Urban Lab, CSE. This investigation is based connected the existent clip information disposable from the existent moving aerial prime monitoring stations successful Delhi-NCR and the larger Indo-Gangetic Plain. "On an average, publication of fume to Delhi's regular PM2.5 during mediate of October to November 8 has been the lowest successful the past 4 years. So far, it has recorded connected an mean 12 per cent per time successful opposition to 17 per cent per time successful 2020, 14 per cent per time successful 2019, and 16 per cent per time successful 2018 (as reported by SAFAR)," the CSE said. "If converted to implicit concentrations, the per time publication of fume stood astatine 26 microgram per cubic metre this twelvemonth truthful acold compared to 35 microgram per cubic metre successful 2020, 40 microgram per cubic metre successful 2019, and 31 microgram per cubic metre successful 2018," it said. However, the highest publication of fume to Delhi's PM level was recorded connected 7th November erstwhile it deed 48 per cent. This the 2nd highest regular publication percent recorded since specified estimation was started by SAFAR successful 2018. The highest azygous time publication percent has been 58 per cent recorded connected November 5, 2018. "The ongoing smog occurrence is simply a nationalist wellness emergency. This requires urgent exigency enactment connected cardinal combustion sources (vehicles, industry, discarded burning) and particulate sources (construction and roads) to forestall further trapping of contamination erstwhile determination is nary upwind to stroke this away. We request pollution-source-wise and hotspot-wise presumption of action," Roychowdhury said.

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said on Wednesday. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. Predictably, the season's first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don't improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year's smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. While very high concentrations of PM2.5 have hogged attention, the levels of gases ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017," said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. On an average, contribution of smoke to Delhi's daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR), the CSE said. If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018, it said. However, the peak contribution of smoke to Delhi's PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018. 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. We need pollution-source-wise and hotspot-wise status of action, Roychowdhury said.

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said on Wednesday. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. Predictably, the season’s first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don’t improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year’s smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. While very high concentrations of PM2.5 have hogged attention, the levels of gases ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017,” said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. On an average, contribution of smoke to Delhi’s daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR), the CSE said. If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018, it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018. 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. We need pollution-source-wise and hotspot-wise status of action, Roychowdhury said.

Clean Air & Sustainable Mobility

First Severe Smog Episode Hits Delhi, Could Be Longest In 4 Years: Report

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said today. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. “Predictably, the season’s first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers,” said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don’t improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year’s smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. “While very high concentrations of PM2.5 have hogged attention, the levels of gases – ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017,” said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. “On an average, contribution of smoke to Delhi’s daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR),” the CSE said. “If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018,” it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018.

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said on Wednesday. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. Predictably, the season’s first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don’t improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year’s smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. While very high concentrations of PM2.5 have hogged attention, the levels of gases ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017,” said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. On an average, contribution of smoke to Delhi’s daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR), the CSE said. If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018, it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018. 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. We need pollution-source-wise and hotspot-wise status of action, Roychowdhury said.

Clean Air & Sustainable Mobility

Centre For Science And Environment

The primary extreme smog episode has hit Delhi and the Nationwide Capital Area (NCR) and is predicted to final for one more two days, inexperienced think-tank Centre for Science and Surroundings (CSE) mentioned immediately. Despite the fact that the seasonal smog in Delhi is intense, the typical every day contribution of smoke from farm fires from the center of October to November 8 has been the bottom in final 4 years, it mentioned. “Predictably, the season’s first episode has been triggered by the mixed impact of unfavourable climate situations (cool and calm winds and inversion), stubble burning and firecrackers,” mentioned Anumita Roychowdhury, government director, analysis and advocacy, CSE. In comparison with the primary smog episode of earlier 4 years, the present smog has matched the length of the primary smog of 2018 and 2020 season — each lasted six days. If situations do not enhance, it would overtake the 2019 smog that lasted eight days, the CSE mentioned. The common depth of the smog this 12 months to date is 329 microgram per cubic metre per day, which is decrease than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It’s extra intense than the 2018 smog (about 9 per cent). Lingering on of this 12 months’s smog for longer length regardless of comparatively windier native situations may be as a result of lack of air pollution management measures within the metropolis, the inexperienced assume tank mentioned. RELATED Narcotics Control Bureau At Shah Rukh Khan's Home After He Meets Son Aryan Khan In Jail “Whereas very excessive concentrations of PM2.5 have hogged consideration, the degrees of gases – ozone, CO or NO2 — have remained elevated throughout this smog episode. Additionally, the ratio of SO2 to NO2 elevated on Diwali night time indicating elevated air pollution load from firecrackers. The PM2.5 focus on Diwali night time (8 pm to eight am) has been essentially the most intense since 2017,” mentioned Avikal Somvanshi, programme supervisor, City Lab, CSE. This evaluation relies on the true time information obtainable from the present working air high quality monitoring stations in Delhi-NCR and the bigger Indo-Gangetic Plain. “On a median, contribution of smoke to Delhi’s every day PM2.5 throughout center of October to November 8 has been the bottom within the final 4 years. Thus far, it has recorded on a median 12 per cent per day in distinction to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR),” the CSE mentioned. “If transformed to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this 12 months to date in comparison with 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018,” it mentioned. Nonetheless, the height contribution of smoke to Delhi’s PM degree was recorded on seventh November when it hit 48 per cent. This the second highest every day contribution proportion recorded since such estimation was began by SAFAR in 2018.

Clean Air & Sustainable Mobility

Centre For Science And Environment

Clean Air & Sustainable Mobility

Centre For Science And Environment

Clean Air & Sustainable Mobility

Delhi in Grip of Season’s 1st Smog Episode, Likely to Be Longest in 4 Years: CSE

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said on Wednesday. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. Predictably, the season’s first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers, said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don’t improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year’s smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. While very high concentrations of PM2.5 have hogged attention, the levels of gases ozone, CO or NO2 — have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017,” said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. On an average, contribution of smoke to Delhi’s daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR), the CSE said. If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018, it said. However, the peak contribution of smoke to Delhi’s PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018. 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. We need pollution-source-wise and hotspot-wise status of action, Roychowdhury said.

Clean Air & Sustainable Mobility

First Severe Smog Episode Hits Delhi, Could Be Longest In 4 Years: Report

The first severe smog episode has hit Delhi and the National Capital Region (NCR) and is expected to last for another two days, green think-tank Centre for Science and Environment (CSE) said today. Even though the seasonal smog in Delhi is intense, the average daily contribution of smoke from farm fires from the middle of October to November 8 has been the lowest in last four years, it said. "Predictably, the season's first episode has been triggered by the combined effect of unfavourable weather conditions (cool and calm winds and inversion), stubble burning and firecrackers," said Anumita Roychowdhury, executive director, research and advocacy, CSE. Compared to the first smog episode of 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 don't improve, it might overtake the 2019 smog that lasted eight days, the CSE said. The average intensity of the smog this year so far is 329 microgram per cubic metre per day, which is lower than that of the 2020 smog (by 7 per cent) and 2019 smog (by 3 per cent). It is more intense than the 2018 smog (about 9 per cent). Lingering on of this year's smog for longer duration despite relatively windier local conditions might be due to the lack of pollution control measures in the city, the green think tank said. "While very high concentrations of PM2.5 have hogged attention, the levels of gases - ozone, CO or NO2 -- have remained elevated during this smog episode. Also, the ratio of SO2 to NO2 increased on Diwali night indicating increased pollution load from firecrackers. The PM2.5 concentration on Diwali night (8 pm to 8 am) has been the most intense since 2017," said Avikal Somvanshi, programme manager, Urban Lab, CSE. 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. "On an average, contribution of smoke to Delhi's daily PM2.5 during middle of October to November 8 has been the lowest in the last four years. So far, it has recorded on an average 12 per cent per day in contrast to 17 per cent per day in 2020, 14 per cent per day in 2019, and 16 per cent per day in 2018 (as reported by SAFAR)," the CSE said. "If converted to absolute concentrations, the per day contribution of smoke stood at 26 microgram per cubic metre this year so far compared to 35 microgram per cubic metre in 2020, 40 microgram per cubic metre in 2019, and 31 microgram per cubic metre in 2018," it said. However, the peak contribution of smoke to Delhi's PM level was recorded on 7th November when it hit 48 per cent. This the second highest daily contribution percentage recorded since such estimation was started by SAFAR in 2018. The highest single day contribution percentage has been 58 per cent recorded on November 5, 2018.

Clean Air & Sustainable Mobility

दिल्ली : तीन सालों में इस बार सबसे लंबा खिंच सकता है स्मॉग का दौर

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।

Clean Air & Sustainable Mobility