Air pollution levels are a grave concern as India continues to battle the deadly coronavirus. <br />Thick smog enveloped parts of Delhi. <br />Widespread stubble burning in neighbouring states and local pollutants led to worsening of air quality in the national capital. <br />As per CPCB, air quality at RK Puram is 256 and Anand Vihar is 286, all stand in ‘poor’ category.
