Clear sky has become a very rare sight in Delhi NCR after the lockdown was announced on 25 March. It is also now supported by data.
A new analysis from the Center for Science and the Environment says that morning and evening peaks in PM 2.5 (fine, respected polluting particles) have flattened.
The decrease in nitrogen dioxide (NO2) concentrations is even more pronounced as the major sources of NO2 emissions are vehicles and industry.
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“This analysis brings a clear impact on the trend of hourly pollution and on traffic against poisonous vehicles. Traffic with a minimum hourly trend. This is increasingly evident in NO2 trends, ”the analysis released on Saturday said.
Meanwhile, the Regional Weather Forecast Center in Delhi released historical data for the maximum temperature recorded in April, ranging from 39.6 ° C in 1994 to 43.7 ° C in 2010.
The hourly pollution trend in Delhi, Gurugram, Faridabad, Noida, and Ghaziabad analyzed by CSE used to be majorly influenced by traffic peaks in morning and evening which are not seen anymore.
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“Post-1992 data analysis suggests maximum temperature in Delhi reaches 40 ° C during April. 17 to 20. If temperature and humidity play a role in the transmission of the virus (SARS-CoV-2), So we will be able to see the trend in April.
If people use air conditioning then things will be different. ”, Said RWFC chief Kuldeep Srivastava.
