Yumeng Li, Long Chen, Sai Liang*, Jianchuan Qi, Haifeng Zhou, Cuiyang Feng, Xuechun Yang, Xiaohui Wu, Zhifu Mi, and Zhifeng Yang
Spatially Explicit Global Hotspots Driving China’s Mercury Related Health Impacts
Environmental Science & Technology 2020 54 (22), 14547-14557
Over 100 nations signed the Minamata Convention on Mercury to control the adverse eﬀects of mercury (Hg) emissions on human beings. A spatially explicit analysis is needed to identify the speciﬁc sources and distribution of Hg-related health impacts. This study maps China’s Hg-related health impacts and global supply chain drivers (i.e., global ﬁnal consumers and primary suppliers) at a high spatial resolution. Here we show signiﬁcant spatial heterogeneity in hotspots of China’s Hg-related health impacts. Approximately 1% of the land area holds only 40% of the Chinese population but nearly 70% of the fatal heart attack deaths in China. Moreover, approximately 3% of the land area holds nearly 60% of the population but 70% of the intelligence quotient (IQ) decrements. The distribution of hotspots of China’s Hg-related health impacts and global supply chain drivers are inﬂuenced by various factors including population, economy, transportation, resources, and dietary intake habits. These spatially explicit hotspots can support more eﬀective policies in various stages of the global supply chains and more eﬀective international cooperation to reduce Hg-related health impacts. This can facilitate the successful implementation of the Minamata Convention on Mercury.