The Air Quality Index (AQI) data that is widely available for the Delhi-NCR region is focussed primarily on particulate matter in the category of PM10 and PM2.5. These refer to particulate matter with diameter of 10 microns and 2.5 microns, respectively. There is another category of super-fine particulate matter with a diameter of 1 micron […]
Tag: Air pollution
I wrote about the Supreme Court’s directions on firecrackers here. Some of the Constitutional aspects of the judgment have been discussed here. This is the final post in the series of posts on the Supreme Court’s firecracker ban. Here I will discuss some concerns arising out of the timing of the judgment, and the potential […]
I wrote about the contents of the recent Supreme Court judgment on firecracker here. The partial ban on firecrackers directed by the Supreme Court has polarized opinion. One school of thought believes that a partial ban, in the current conditions of severe air pollution, is inadequate. Another somewhat related criticism of the judgment is about […]
At the time of writing this, on the eve of Diwali 2018, the AQI in Delhi lies steadfastly in the “Hazardous” category, as it has been for several hours now. Yet, I can hear the sound of firecrackers outside my house, in open defiance of not just concerns of health and self-preservation, but also a […]
Categories
More on capping the cabs
Ride-hailing apps offer a certain ease of transportation, but this convenience imposes an externality on the environment and the roads, which are public goods. A negative externality is a situation where a commercial activity imposes a cost on third parties, and where this social cost is not accounted for in the price of the good […]
The Indian Institute of Technology, Kanpur recently published its findings on the correlation between the air pollution and the changing monsoon cycle in India in Nature Communications. The article can be accessed here. The process of cloud formation and precipitation is impacted by atmospheric aerosols. Higher aerosol concentration in the atmosphere, a direct result of increasing […]
That the winter months will arrive in Delhi with life-threatening amounts of air pollution now seems to have been internalized by the government as a matter of inevitability. As per a recent report, the Delhi Government appears to be confident about having made the right efforts to handle the imminent air pollution this year. This […]
India Environment Blog 