Following light rain and thunderstorm, the air pollution level in the national capital settled in the 'Moderate' category on Sunday.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-air-quality-improves-moderate-after-light-rain-thunderstorm
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-meteorological-department-imd
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi