China's air quality improved slightly in the first half of 2014 compared with the same period in 2013, but aggravated ozone pollution became a prominent problem across the country, according to Env
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/anti-smog-gains-marred-rising-ozone-levels
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/china-daily
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ozone