Almost a third of Europe's city dwellers are exposed to excessive concentrations of airborne particulate matter (PM), one of the most important pollutants in terms of harm to human health as it penetrates sensitive parts of the respiratory system. The EU has made progress over the past decades to reduce the air pollutants which cause acidification, but a new report published today by the European Environment Agency (EEA) shows that many parts of Europe have persistent problems with outdoor concentrations of PM and ground level ozone.
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