Stubble burning in Punjab, shows data, has been lowest in the last three years. Data from NASA's Worldview satellite, which detects fire events around the world, corroborates the assertion made by the Punjab government that stubble burning, a major cause of air pollution, in the state this year has been a fraction of what it has been over the last two years. Stubble burning is a significant concern in Delhi and neighbouring states, as winter conditions trap pollutants, leading to hazardous air quality and thick smog.
