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Health impacts of diesel vehicles suspected of using prohibited defeat devices in the EU and UK

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Road transport emissions

Road transport is a major source of air pollution and associated health impacts as a leading source of nitrogen oxide (NOX) emissions — particularly in densely populated areas. NOX emissions also increase the levels of nitrogen dioxide (NO2) and particulate matter (PM2.5) in the atmosphere. These transport-induced changes in pollutant concentrations have a dramatic impact on public health. Emissions from this activity are close to the ground and often in densely populated regions.

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