Come winter, and the air quality in northern India begins to deteriorate.The smoke resulting from burning crop residues combined with vehicular emissions make the air we breathe deadly.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/crop-residues-air-pollution-delhi-urban-air-quality-punjab-haryana-national-green
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crop-residues
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-air-quality
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/haryana
[9] http://admin.indiaenvironmentportal.org.in/thesaurus/national-green-tribunal-ngt
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/remote-sensing
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/court
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-and-health
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers