NO₂ Pollution Increased Dramatically in India’s Major Cities in 2021
NO2 is an important pollutant to track because exposure to high concentrations can lead to respiratory problems in humans. So did India’s nitrogen dioxide levels improve in 2021? How did COVID-19 lockdown affect NO2 levels in India? Why NO₂ is Dangerous NO₂ can transform into ground-level ozone, which poses a …

