Unseasonably wet and windy weather led to low air pollution during June.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollutionwatch-diesel-cars-emit-more-nitrogen-oxides-petrol-cars
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/guardian-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/petrol
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/london
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nitrogen-dioxide
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electric
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/zero-emissions-vehicles