Tracking Pollutants: Seasonal Patterns Expose Root Causes of India's Air Quality Struggles

A decade-long study on India's air quality reveals distinct seasonal patterns for various pollutants like PM2.5, NO2, and ozone. Envirocatalysts developed a dashboard displaying long-term pollutant trends, highlighting the need for targeted measures. The study emphasizes understanding individual pollutants for effective air pollution management.

A new decade-long study highlights the sharply different seasonal patterns of pollutants affecting air quality in Indian cities, including the national capital, Delhi. Conducted by research think tank Envirocatalysts, the analysis indicates the need to study each pollutant separately for more effective air quality management.

The comprehensive dashboard developed by Envirocatalysts compiles data from the Central Pollution Control Board since 2015. It allows users to track the long-term trends of pollutants like particulate matter (PM2.5 and PM10), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O3).

According to Sunil Dahiya, founder of Envirocatalysts, understanding the complex seasonal variations of each pollutant is essential for tackling air pollution. For example, PM2.5 and PM10 spikes are noted during winter months, while NO2 and ozone peak in summer. The study stresses the importance of targeted actions at the source to reduce emission loads.