In many cities air pollution is reaching levels that threaten people's health according to an unprecedented compilation of air quality data released today by WHO (World Health Organization).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/most-polluted-cities-world
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rspm-pm-10
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heart-diseases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lung-disease
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cancer
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mongolia
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/iran
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/developing-countries
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biomass
[16] http://admin.indiaenvironmentportal.org.in/category/thesaurus/thermal-power-plants
[17] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa