News | Science Selection May 2014 | Volume 122 | Issue 5
Shared Burden: Public Health Impact of Nine Environmental Pollutants in Europe
Lindsey Konkel is a Worcester, MA–based journalist who reports on science, health, and the environment. She is an editor for Environmental Health News and The Daily Climate.
Citation: Konkel L. 2014. Shared burden: public health impact of nine environmental pollutants in Europe. Environ Health Perspect 122:A136; http://dx.doi.org/10.1289/ehp.122-A136
News Topics: Air Pollution, Asthma, Cancer, Cardiovascular Health, Dioxins, International Environmental Health, Lead, Metals, Noise Pollution, Ozone, Particulate Matter (PM), Respiratory Health, Risk Assessment, Sleep
Published: 1 May 2014
Related EHP Article
Airborne particulate matter may be the most significant environmental risk factor for disease across much of Western Europe, according to a new analysis published this month in EHP.1 The study compares the disease burden associated with nine environmental exposures across six European countries—Finland, Germany, France, Italy, Belgium, and the Netherlands.
Few studies have sought to rank environmental risk factors on an international level by their public health impact—a critical aspect for developing effective policy measures, according to the team led by Otto Hänninen, a pollution exposure researcher at Finland’s National Institute for Health and Welfare. “Comparability across countries is very useful in promoting abatement that requires international policies—such as those pertaining to long-range transported particulate matter or vehicle emissions,” Hänninen says.
The research team evaluated the potential public health impact for each of the nine exposures by estimating years of life lost due to death and disability. For each exposure, they selected one or more health outcomes that had been causally associated with it—for instance, cardiac death and chronic bronchitis associated with fine particulate matter (PM2.5), sleep disturbance associated with traffic noise, onset of asthma associated with secondhand smoke exposure, and cancer resulting from exposure to dioxins and dioxin-like polychlorinated biphenyls (PCBs).2 Other environmental risk factors assessed included benzene, formaldehyde, lead, ozone, and radon.
Hänninen and colleagues concluded that about 3–7% of the total annual disease burden across all six countries could be associated with these nine environmental exposures. PM2.5 was the environmental risk factor with the highest public health significance, accounting for 68% of the total estimated health impacts. Secondhand smoke and traffic noise tied for second place, each estimated to account for 8% of the environmental disease burden, while radon accounted for an estimated 7%.
It’s not surprising that airborne particles dominated the disease burden, says C. Arden Pope III, an environmental economist at Brigham Young University who was not involved in the current study. “Everyone is exposed to particulates. These findings reflect the ubiquity of that exposure, even in developed countries, compared to other risk factors such as radon or even secondhand smoke, where exposures may be more limited,” he says.
The World Health Organization (WHO) has estimated that outdoor air pollution was responsible for 3.7 million deaths in 2012—roughly 1 in 15 deaths globally.3 Most of those deaths were in low- and middle-income countries that often struggle with high levels of ambient air pollution. However, the current analysis suggested PM2.5 was the dominant risk factor even in Finland, a clean and affluent country by WHO standards, and the country with the lowest air pollution impacts of the six studied. “We found PM to be roughly twice as harmful as fatal traffic accidents in Finland,” Hänninen says.
Also surprising, he says, was the evidence of a high impact of traffic noise, which the authors evaluated as a risk factor for severe sleep disturbance and ischemic heart events. The researchers estimated that traffic noise cost Europeans 400–1,500 years of life per million people due to death and disability. “We actually expect that estimate for noise to be too low,” Hänninen says, because the researchers did not include all known health end points for noise exposure, such as hypertension and heart disease.4
The researchers were able to obtain exposure data collected with standardized methods in all countries only for secondhand smoke, PM2.5, and ozone. They excluded suspected health effects that weren’t sufficiently researched or monitored. For instance, they did not account for developmental impacts of endocrine disruption, which have been associated with dioxin and PCB exposures.5
“The study is ambitious in its attempt to integrate the literature and apply it to an area of real concern,” Pope says. “The limitations of the paper reflect the limitations of our own knowledge.” The next important step, says Hänninen, is to identify preventable risks and then analyze potential policies for feasibility and cost effectiveness.
1. Hänninen O, et al. Environmental burden of disease in Europe: assessing nine risk factors in six countries. Environ Health Perspect 122(5):439–446 (2014); http://dx.doi.org/10.1289/ehp.1206154.
2. Hänninen O, Knol A, eds. European Perspectives on Environmental Disease Burden: Estimates for Nine Stressors in Six European Countries. Helsinki, FI:National Institute for Health and Welfare (2011). Available: http://www.thl.fi/thl-client/pdfs/b75f6999-e7c4-4550-a939-3bccb19e41c1 [accessed 8 April 2014].
3. WHO. 7 Million Deaths Annually Linked to Air Pollution [press release]. Geneva, Switzerland:World Health Organization (25 March 2014). Available: http://www.who.int/mediacentre/news/releases/2014/air-pollution/en/ [accessed 8 April 2014].
4. Floud S, et al. Exposure to aircraft and road traffic noise and associations with heart disease and stroke in six European countries: a cross-sectional study. Environ Health 12(1):89 (2013); http://dx.doi.org/10.1186/1476-069X-12-89.
5. Mocarelli P, et al. Dioxin exposure, from infancy through puberty, produces endocrine disruption and affects human semen quality. Environ Health Perspect 116(1):70–77 (2008); http://dx.doi.org/10.1289/ehp.10399.
EHP is pleased to launch its new Children’s Health page. This dynamic page will feature timely children’s health research and news as they are published in EHP as well as links to related material. The page includes its own “Search Children’s Health” function so visitors can search our full library of children’s health content by topic, author, or publication year and find exactly the information they need. Bookmark the page or access it via the “Featured Children’s Health” section on EHP’s home page. (more…)
EHP is proud to announce that “Polychlorinated Biphenyl and Organochlorine Pesticide Concentrations in Maternal Mid-Pregnancy Serum Samples: Association with Autism Spectrum Disorder and Intellectual Disability,” published in EHP on 23 August 2016, has been selected by the Children’s Environmental Health Network (CEHN) as its October 2016 Article of the Month. CEHN Article of the Month summaries discuss the potential policy implications of current children’s environmental health research. The CEHN summary can be viewed here.
This month Editor-in-Chief Sally Perreault Darney and International Program Manager Hui Hu are taking EHP to China. Their first stop is Wuhan for a workshop on recent perspectives on environmental health, organized by faculty of the Huazhong University of Science and Technology. Sally will speak about EHP’s scope and objectives as well as emerging issues in environmental health, while Hui will provide updates on the EHP Chinese Edition, including accessibility of social networking in China. (more…)
Featured Children’s Health
Veronica A. Tinney, Jerad M. Denton, Lucy Sciallo-Tyler, and Jerome A. Paulson
Jerome A. Paulson and Claire L. Barnett
Kim G. Harley, Katherine Kogut, Daniel S. Madrigal, Maritza Cardenas, Irene A. Vera, Gonzalo Meza-Alfaro, Jianwen She, Qi Gavin, Rana Zahedi, Asa Bradman, Brenda Eskenazi, and Kimberly L. Parra
Rebecca Massa Nachman, Guangyun Mao, Xingyou Zhang, Xiumei Hong, Zhu Chen, Claire Sampankanpanich Soria, Huan He, Guoying Wang, Deanna Caruso, Colleen Pearson, Shyam Biswal, Barry Zuckerman, Marsha Wills-Karp, and Xiaobin Wang