Residue burning practice is followed in major Indian states of Uttar Pradesh and Punjab. Agricultural residue burning in the fields and used otherwise for rural domestic needs is responsible for a large number of toxic emissions, which are a health hazard. The main pollutants contributed from biomass burning are aerosols and gases like carbon dioxide, carbon monoxide, sulphur dioxide, oxides of nitrogen, methane, non-methane volatile organic carbon and ammonia.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/air-pollution-due-burning-agriculture-residue
[2] http://admin.indiaenvironmentportal.org.in/category/author/sanjeev-agrawal
[3] http://admin.indiaenvironmentportal.org.in/category/author/r-c-trivedi
[4] http://admin.indiaenvironmentportal.org.in/category/author/b-sengupta
[5] http://admin.indiaenvironmentportal.org.in/category/journal/indian-journal-air-pollution-control
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crop-residues
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rspm-pm-10
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/aerosols
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biomass-gasification
[16] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[17] http://admin.indiaenvironmentportal.org.in/category/thesaurus/statistics