Links:
[1] http://admin.indiaenvironmentportal.org.in/news/islamabads-air-degrading-alarmingly
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/dawn-pakistan
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-air-quality
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pakistan
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/islamabad