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Air quality research suggests major benefits for children

Just-released research suggests major benefits for children from the EU air package

“Anne Stauffer shares new research showing that children born to mothers exposed to high levels of PAHs in air pollution during pregnancy are five times more likely to show symptoms that characterise ADHD. Given that the costs of treating ADHD alone are estimated at €0.72 billion Euros per year for EU28, she argues that it makes health and economic sense for the EU to advance on new air pollution rules.”

New evidence links poor air quality to Attention-deficit/hyperactivity disorder (ADHD) in children – yet another reason for full and urgent adoption of the EU air quality package.

The European Parliament complementary impact assessment on the significance of reducing national emissions of certain pollutants in the air will be discussed today in the Environment Committee (6 November 2014). But it will not take into account a plethora of latest findings on different chronic diseases associated with air pollution. While polluted air is a well-established contributor to respiratory diseases, certain heart conditions, and lung cancer, among recent findings are concerns that maternal exposure may be affecting child development.

The study published today by researchers from the Columbia Center for Children’s Environmental Health in New York finds that prenatal exposure to polycyclic aromatic hydrocarbons (PAHs), a component of air pollution, is linked to increased ADHD behaviour problems in nine year olds.

Children born to mothers exposed to high levels of PAHs during pregnancy were five times more likely to have an increased number of symptoms and a higher degree of symptoms that characterise ADHD than children born to mothers with lower PAH exposure. The study followed 233 non-smoking pregnant women and their children.

Major child health problem

ADHD is the most common behavioural disorder diagnosed in children and is often accompanied by anxiety and depression. Children with ADHD are at increased risk of substance abuse, conduct, and mood disorders. The condition can persist into adulthood.

Treatment costs alone for EU28 are estimated at €0.72 billion Euros per year. A study published in 2007 suggested that a projected 10-fold increase in ADHD prevalence anticipated over the 10 year period to 2012 would drive overall annual treatment costs to €311 million in German and to €91 million in the UK.

Other research has pointed to associations between air pollution and autism in children and to adverse effects of short periods of increased air pollution on elderly patients with Parkinson’s disease. Other studies have also shown a possible link between air pollution and ADHD but this is the first time an association has been made between individual measures of early-life exposure to PAH pollutants in the air and ADHD behaviour problems in children.

Costs associated with recognised health problems

Current estimates of the health conditions already recognised as associated with exposure to air pollution are huge. Lung and heart conditions linked to polluted air cause more than 400,000 premature deaths per year and health costs of up to €940 billion. In Western Europe, air pollution is now the 11th biggest contributor to the burden of disease - yet reducing air pollution and thus improving health requires straightforward policy change rather than difficult-to-achieve behavioural change.

In essence, adoption of the air package would represent a major public health plan that would produce a substantial dent in Europe’s onerous toll of chronic, non-communicable disease. The new research suggests that major benefits may also be felt in Europe’s next generation of children.

Is the package at risk?

Sadly, the EU air quality package is under threat. EU Commission President Juncker has asked Environment Commissioner Vella to “to take stock of the negotiations on the air package”, while Vice President of the Commission Franz Timmermans is also reviewing all current legislative proposals. HEAL and many other health and environmental organisations think this development is an unacceptable delay in the process of agreeing on already overdue legislation.

The package was the outcome of three years of extensive analysis and a comprehensive impact assessment by the Commission. Almost four in every five EU citizens have made clear that they want the EU to do more to address air quality problems.

To delay or weaken action on improving air quality makes no sense for health or the economy.

When introduced earlier this year, the then Environment Commissioner Janez Potocnik said that the proposed actions would halve the number of premature deaths resulting from exposure to air pollution, and that the benefits for health were 12 times as high as costs. Today, the benefits might be put even higher.

HEAL firmly believes that the emission reductions set out in the EU package is critical for health and quality of life. Recent research findings make it even more important to support the air package and to champion its benefits for children and adults in Europe.

Anne Stauffer is HEAL’s Deputy Director.

Article included in Euractiv, 6 November 2014 - Exposure to air pollution during pregnancy linked to ADHD

Last updated on 14 November 2014

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The Health and Environment Alliance (HEAL) is a leading European not-for-profit organisation addressing how the environment affects health in the European Union (EU). We demonstrate how policy changes can help protect health and enhance people’s quality of life. Read more »

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