Long-term exposure to ozone has significant impacts on human health

phys.org | 10/11/2018 | Staff
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A new study has utilized a novel method to estimate long-term ozone exposure and previously reported epidemiological results to quantify the health burden from long-term ozone exposure in three major regions of the world.

The research, by Duke University (USA) and the University of York (UK), estimates that 266,000 (confidence interval: 186,000-338,000) premature mortalities across Europe, the USA and China in 2015 were attributable to long-term exposure to ozone (O3).

Today - Environmental - Research - Letters

It publishes today in Environmental Research Letters.

Karl Seltzer, from Duke University, is the study's lead author. He said: "The there is strong epidemiological and toxicological evidence linking ambient ozone exposure to adverse health effects.

Research - Impacts - Results - Body - Evidence

"Historically, much of the previous research focussed on the short-term impacts. We utilized results from the growing body of evidence that links long-term O3 exposure and increased cause-specific premature mortalities, particularly from respiratory diseases."

To do this, the researchers used 2015 data from ground-based monitoring networks in the USA, Europe and China to estimate long-term O3 exposure. They then calculated premature mortalities using exposure-response relationships from two American Cancer Society (ACS) cancer prevention studies.

Mr - Seltzer - Estimates - O3 - Exposure

Mr Seltzer said: "Global estimates of O3 exposure are often made using state-of-the-art chemical transport models (CTMs). However, we based our study on observed air quality data, because it has several advantages over CTM modelling approaches."

Interestingly, the team's...
(Excerpt) Read more at: phys.org
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