A 40 percent drop in PM2.5 by 2020 from the average level in 2013 has been targeted for the heavily polluted Beijing-Tianjin-Hebei cluster.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/top-planner-targets-40-cut-pm25-beijing-tianjin-hebei-cluster
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/china-daily
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-management
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects