nitrogen oxides

Air pollution: Roadside emissions sensors help Hong Kong clean its air in world first

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Carbon monoxide and nitrogen oxide pollution have fallen sharply in Hong Kong since it introduced a world-first scheme to detect and repair vehicles with the highest emissions Technology 2 February 2022 By Alice Klein A busy road in Hong Kong picturelibrary / Alamy Stock Photo Hong Kong has improved its air quality by using roadside … Read more

Ozone pollution: Gas causes $63 billion damage per year to East Asian crops

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Rising levels of ground-level ozone in China and nearby countries are having a big effect on the yields of staple crops such as wheat, rice and maize Environment 17 January 2022 By Michael Le Page Emissions from vehicles in places like Beijing, China, are contributing to a rise in ozone pollution in East Asia AerialPerspective … Read more