3/23/2023 0 Comments Corona tracker ghaziabadThe study also examined the pollutant trends of the NCR regions from 1st January-30th November for the years 2015-2020. While the rainfall resulted in a sharp decline in the PM10 and PM2.5 levels, a dust storm resulted in a sudden increase in air pollutants in Delhi NCR regions.Īir Quality trend analysis from 2015-2020 Unlike in initial analyses, events like rainfall and dust storms which affect pollution levels, along with variations in relative humidity and solar radiations, were also included in the extended research. It noted that the mean ambient temperature of the Delhi NCR region varied from 23.81 degree Celsius to 28.37 degree Celsius. With the increase in temperature and solar radiations, nitrogen oxides react with oxidizing agents and results in the formation of ozone. The rise in the O3 level owes to its dependency on NOx. The study compared the average level of air pollutants before 24 days and after 24 days of the lockdown.Īccording to the study, while PM10, PM2.5, NOx, NO, NO2, NH3, SO2, CO, C6H6 showed reductions across the two-month period, O3 and SO2 levels showed an increase. Low reductions in the air pollutants level were observed during the extended period of the research between 1st March to 1st May 2020 as compared to the initial eight days of the lockdown. Ozone (O3) levels showed reductions during the initial days of the lockdown at all locations except Faridabad, where it increased by 1.67%.Įxtended period of research shows high ozone levels Similarly, during the first eight days of the lockdown, significant reductions were observed in carbon monoxide (CO), benzene (C6H6) and ammonia (NH3) levels. While Delhi observed the maximum reduction in NO, Noida observed the minimum. The study also found that amongst nitrogen oxides, NO levels showed the highest reduction (up to 76.8%) at all locations except Noida. This reduction owes to measures taken by the government during the lockdown which included termination of transportation and industrial activities. The days were further sub divided into two categories- eight days before the lockdown and eight days after the lockdown. It has observed meteorological parameters- relative humidity, absolute temperature, wind speed and solar radiation from 17th March to 1st April, 2020 when they showed very little variations. Notable reduction in pollutants level in the initial days of lockdownĪccording to the study, there was a significant decrease in the concentration of ten pollutants (PM10, PM2.5, NOx, NO, NO2, NH3, SO2, CO, C6H6, O3) due to several restrictive measures taken by the government during lockdown. The study focuses on five cities namely Delhi, Noida, Ghaziabad, Gurugram and Faridabad. Maharashtra has reported the highest daily new cases at 60,212, followed by Uttar Pradesh with 17,963 while Chhattisgarh reported 15,121 new cases.The study titled, ‘Comprehensive Study on Impact Assessment of Lockdown on Overall Ambient Air Quality amid COVID-19 in Delhi and its NCR, India’ was conducted by researchers from Guru Gobind Singh Indraprastha University and Ministry of Science and Technology. India’s daily new cases continue to rise and a record 1,84,372 fresh coronavirus cases were registered on Wednesday (April 14). Meanwhile, 10 states, that include Maharashtra, Uttar Pradesh, Chhattisgarh, Karnataka and Kerala, have shown a significant rise in daily new COVID-19 cases accounting for 82.04 per cent of the fresh infections being reported in a day, the Union Health Ministry said on Wednesday (April 14). He further added by saying that, “nowadays, with multiple cases coming from the same family, it is hard to detect the source. Containment is one of the best strategies to curb Covid spread,” said Dr VB Jindal, former president of Indian Medical Association, Ghaziabad. It also indicated that the virus is spreading fast. This trend is more visible in city areas. It indicates Covid spread among families and neighbours. “A high number of containment zones having multiple cases is a cause of worry.
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