Delhi's air quality remains 'unhealthy'

The air quality of Delhi remains in 'unhealthy' category on November 19. The Air Quality Index (AQI) at the Lodhi Road area showed no improvement in air quality. The PM 2.5 was recorded at 135 while PM 10 was at 145 which fall into unhealthy category. The hazy sky was witnessed in several parts of the national capital.