4.7 Article

Global trade drives transboundary transfer of the health impacts of polycyclic aromatic hydrocarbon emissions

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SPRINGERNATURE
DOI: 10.1038/s43247-022-00500-y

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资金

  1. National Natural Science Foundation of China [42077156, 52121006]
  2. Guangdong Basic and Applied Basic Research Foundation [2020A1515011130]
  3. China Scholarship Council (CSC) [201808080136]

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International trade leads to a redistribution of pollutant emissions related to the production of goods and services and subsequently affects their severe health impacts. This study assessed emissions and health impacts of polycyclic aromatic hydrocarbons (PAH), a carcinogenic byproduct of production activities, and considered the various stages of the global supply chain. The findings indicate that trade plays a greater role in driving the health risks associated with PAH than in driving the emissions, highlighting the need for international cooperation to mitigate PAH emissions and health impacts.
International trade leads to a redistribution of pollutant emissions related to the production of goods and services and subsequently affects their severe health impacts. Here, we present a framework of emissions inventories, input-output model, numerical atmospheric chemistry model, and estimates of the global burden of disease. Specifically, we assess emissions and health impacts of polycyclic aromatic hydrocarbons (PAH), a carcinogenic byproduct of production activities, and consider income, production, final sale, and consumption stages of the global supply chain between 2012 and 2015. We find that in 2015, global anthropogenic PAH emissions were 304 Gg (95% CI: 213 similar to 421 Gg) and estimated related lifetime lung cancer deaths were 6.9 x 10(4) (95% CI: 1.8 x 10(4)similar to 1.5 x 10(5) deaths). The role of trade in driving the PAH-related health risks was greater than that in driving the emissions. Our findings indicate that international cooperation is needed to optimise the global supply chains and mitigate PAH emissions and health impacts.

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