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Air quality in German cities is as high as the air quality in rural areas 20 years ago. We reduced carbon monoxide (CO) by 90 per cent, polycyclic aromatic hydrocarbons (PAH) by 90 per cent, benzene by more than 95 per cent, nitrogen oxides by 90 per cent and particulate matter by 70 per cent.

Air pollution policy does not undermine the long-term goals of climate change policy, a new study concludes.

Long-term exposure to air pollution may increase the risk of developing type-2 diabetes, a Swiss study has found. The results also suggest that the association between type-2 diabetes and air pollution occurs at concentrations below World Health Organization (WHO) air quality guidelines.

Emissions of sulphur dioxide (SO2) and nitrogen oxides (NOX) have fallen significantly across Europe since 1960. According to recent research, this is caused by a combination of factors including improved energy efficiency, a changing fuel mix and specific emission control measures.

Road traffic noise and air pollution both increase the risk of having a stroke, recent research from Denmark suggests. The results suggest that traffic noise is more strongly associated with ischaemic stroke, whereas only air pollution appears to be linked with more serious, fatal strokes.

The importance of ‘stepping stone’ patches of habitat for biodiversity has been underestimated, a new study suggests. The researchers developed a new connectivity model, which better captures the effects of stepping stones on species movement.

Car use could be reduced through careful urban planning, according to the results of a new German study. By combining data on driving behaviour and high-resolution satellite imagery, the researchers show how patterns of land and car use are connected.

New software has been developed to rate the health risks of different activities in the urban environment, for example, cycling or driving in different areas of a city.