Air pollution is even worse in India than in Chinaby Jessica Abrahams / December 28, 2018 / Leave a comment
When you leave New Delhi’s international airport you are greeted by a sign: “Today’s Air Quality,” it declares, followed by a series of numbers in red. The day I landed the overall air quality in Delhi was registered at 348, which indicates the concentration of fine particulate matter. Under the Air Quality Index, “good” air should be no more than 50. By way of comparison, the overall air quality in London at the time of writing is 47.
Although the toxic air caused by rapid industrialisation and poor environmental regulation is more frequently associated with China, the situation in India is worse. In 2016, it was home to 14 of the 15 most polluted cities in the world, according to the World Health Organisation. In New Delhi, the winter months are the worst. A combination of low wind, higher fuel use and crop stubble burning on farms outside the city means the air is thick and hazy, giving it the appearance of a morning fog that never lifts. When air pollution exceeds 150, it can start having health impacts on otherwise healthy adults. Above 200 it is labelled as “emergency conditions.” Some of the monitors scattered about India’s capital this year have registered levels above 999—off the scale of the Air Quality Index.