Related topics: air quality

Beijing air pollution off the charts, US says

Thick smog blanketing Beijing went "beyond" measurable pollution levels on Monday, the US embassy said, as a Chinese official warned people to stay indoors and avoid outdoor activities.

Study shows hazardous herbicide chemical goes airborne

"Dicamba drift"—the movement of the herbicide dicamba off crops through the atmosphere—can result in unintentional damage to neighboring plants. To prevent dicamba drift, other chemicals, typically amines, are mixed with ...

Researchers find new vehicle emissions to be deceptively clean

For years, automakers have been working to reduce pollutant levels coming out of motor vehicles' tailpipes. Airborne particulate matter, for example, is present in automobile exhaust and has been shown to contribute to tens ...

First-time direct proof of chemical reactions in particulates

Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. Using it, they disproved an established doctrine: that molecules in aerosols undergo ...

Online shopping might not be as green as we thought

Logic suggests that online shopping is "greener" than traditional shopping. After all, when people shop from home, they are not jumping into their cars, one by one, to travel to the mall or the big box store.

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