Differences in worldwide premature mortality in 2007 between production- and consumption-related PM2.5 air pollution. a–d, Maps show the number of deaths worldwide related to consumption in the given region minus the number of deaths worldwide related to production in that region, for China (a), western Europe (b), the USA (c) and India (d). Graphic: Zhang, et al., 2017 / Nature 

Irvine, California, 29 March 2017 (UCI) – The latest products may bring joy to people around the globe, but academic researchers this week are highlighting the heightened health risks experienced by people in regions far downwind of the factories that produce these goods and on the other side of the world from where they’re consumed. In a study published in the journal Nature, scientists quantify and map the shift of environmental and health burdens brought on by globalization and international trade.

“The way manufacturing and commerce are structured in the world today means that air pollution mortality is being felt disproportionately by people living in or near producing regions, often far from where goods are consumed,” said paper co-author Steven Davis, associate professor of Earth system science at the University of California, Irvine.

Focusing on the year 2007, the researchers found that of the 3.45 million premature deaths caused by fine-particulate-matter air pollution, about 12 percent were related to pollutants emitted in a different region of the world, and 22 percent were associated with goods produced in one region for consumption in another.

For example, nearly 31,000 deaths in Japan and South Korea were linked to emissions from China, and just over 47,000 deaths in Eastern Europe were related to pollution from factories in Western Europe. The study also found that 2,300 deaths in Western Europe were attributable to pollution transported through the atmosphere from the United States.

“Previous studies proved that air pollution can travel great distances and cause harm far from emitting factories,” Davis said. “Our research shows that trade extends the distance between cause and effect by separating consumers in one region and people who suffer adverse health impacts, who are often on the other side of the world.”

The study’s authors note that China’s exports cause the greatest number of premature deaths because of the high population density of that country and its neighbors, the quantity of its emissions, and its focus on manufacturing for export. And they estimate that in 2007 about 11 percent of Chinese deaths due to air pollution were tied to goods consumed in the United States and Western Europe, which import the most Chinese products.

“It costs less to manufacture goods in places like China and Southeast Asia, mostly because those places have cheaper labor than the West,” Davis said. “But they also tend to have less stringent environmental protections and denser populations, so consumer savings, corporate profits and economic development based on trade are costing the lives of people who have to breathe polluted air.”

The research was supported by China’s National Natural Science Foundation and National Basic Research Program, as well as by NASA.

Contact

Brian Bell
949-824-8249
bpbell@uci.edu

Manufacturing, global trade impair health of people with no stake in either


Emissions, changes in air quality, and premature mortality embodied in trade. a–c, Maps show differences between production- and consumption-based accounting of SO2 emissions (a; in units of megatonnes of SO2 per year), population-weighted average PM2.5 exposure (b; in units of micrograms of PM2.5 per cubic metre.). Graphic: Graphic: Zhang, et al., 2017 / NatureABSTRACT: Millions of people die every year from diseases caused by exposure to outdoor air pollution1, 2, 3, 4,5. Some studies have estimated premature mortality related to local sources of air pollution6, 7, but local air quality can also be affected by atmospheric transport of pollution from distant sources8, 9,10, 11, 12, 13, 14, 15, 16, 17, 18. International trade is contributing to the globalization of emission and pollution as a result of the production of goods (and their associated emissions) in one region for consumption in another region14, 19, 20, 21, 22. The effects of international trade on air pollutant emissions23, air quality14 and health24 have been investigated regionally, but a combined, global assessment of the health impacts related to international trade and the transport of atmospheric air pollution is lacking. Here we combine four global models to estimate premature mortality caused by fine particulate matter (PM2.5) pollution as a result of atmospheric transport and the production and consumption of goods and services in different world regions. We find that, of the 3.45 million premature deaths related to PM2.5 pollution in 2007 worldwide, about 12 per cent (411,100 deaths) were related to air pollutants emitted in a region of the world other than that in which the death occurred, and about 22 per cent (762,400 deaths) were associated with goods and services produced in one region for consumption in another. For example, PM2.5 pollution produced in China in 2007 is linked to more than 64,800 premature deaths in regions other than China, including more than 3,100 premature deaths in western Europe and the USA; on the other hand, consumption in western Europe and the USA is linked to more than 108,600 premature deaths in China. Our results reveal that the transboundary health impacts of PM2.5 pollution associated with international trade are greater than those associated with long-distance atmospheric pollutant transport.

Transboundary health impacts of transported global air pollution and international trade

2 comments :

  1. rpauli said...

    While I enjoy and trust your postings, sometimes I want to find a link to the original source document.  

  2. Jim said...

    lulz, fixed ;)  

 

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