RT null T1 Towards Zero-Pollution Cities: Circular Economy Strategies in Rapidly Industrializing Urban Areas - 637 Chinese Cities Case Study A1 United Nations Environment Programme, A1 International Resource Panel, K1 urban area K1 city K1 pollution control K1 air pollution K1 industrialization K1 market economy K1 China K1 circular economy K1 urban development YR 2017 FD 2017 LK https://wedocs.unep.org/handle/20.500.11822/31770 UL https://wedocs.unep.org/handle/20.500.11822/31770 NO Air pollution is a global killer and predominantly an urban one, responsible for about 7 million premature deaths worldwide each year. Air pollution by particulate matter (PM) in cities can be reduced through system-based approaches focusing on better use of natural resources and better design of urban infrastructures and industries. This case study applies a systems approach to demonstrate the potential economic benefits, resource-savings, reductions in greenhouse gases (GHG) and PM emissions, air quality improvements and associated health co-benefits achievable by implementing key circular economy strategies in all 637 cities in mainland China. DS UN Environment Document Repository RD Sep 19, 2026