The Golden 80s

If you think air pollution can be controlled by maintaining the status quo, then you are probably mistaken. Pollution is linked to our day-to-day activities. It is the stark reality. In Bengaluru, the primary reason behind air pollution is that there are lots of vehicles on the road, especially during peak hours. The more vehicles that you add to the existing number, then the air pollution will keep on increasing.  Air pollutants do not vanish overnight. They stay in the air and they will react with other chemicals to form toxic compounds that create eye irritation and respiratory issues. If night temperatures are less, the chemicals trapped in dense air will disappear next day only.  To reduce air pollution in Bengaluru, do the following: Reduce the number of vehicles This is the saddest and the most controversial solution that nobody will agree to. There are over 83 lakh registered vehicles in Bengaluru, says a report in the Deccan Herald newspaper. The city has to reduce i...

A report in Bengaluru's Deccan Herald today says that "...Air pollution in Bengaluru dropped by an average 28% during the Covid-19 lockdown".The report cites a study on PM 2.5 levels that decreased during the lockdown as an indicator of air quality improvement. It is not scientific to conclude that a decrease in one air quality indicator (AQI) results in overall air quality improvement or reduction in air pollution. This is because PM2.5 is just one AQI parameter used to measure the air quality level in India. Other pollutant levels need to be tracked to know whether their levels have decreased or not. This include Ozone, oxides of Nitrogen, Sulphur Dioxide, PM 10, and Ammonia.  A report by the Centre for Science and Environment says that Ozone levels saw a spike in many cities that were supposedly clean during the lockdown. The same report states that Bengaluru had an average PM2.5 level of 45% during the lockdown and NOx level have increased by 38%. This furth...