Tag Archives: HAZE

Dust storms cause air pollution spike across north China

Air pollution soared in Beijing on Wednesday as the Chinese capital was hit by a huge sandstorm, and dust also shrouded other parts of the country in a sickly orange haze. The official air quality index in Beijing hit the … Continue reading

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How is haze formed? Soot as a surprising source of haze-building hydroxyl radicals

Haze is formed when a cocktail of various gaseous pollutants is oxidized and forms particulate matter diffusing sunlight. This process is mainly mediated by hydroxyl radicals (OH), and researchers have now discovered a new route to their formation. This newly … Continue reading

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Forest fires linked to tens of thousands of avoidable deaths

Setting fire to forest and agricultural land in Southeast Asia to prepare it for cultivation or grazing contributes to an estimated 59,000 premature deaths a year, say scientists. Their analysis reveals that the greatest health impact from the burning, which … Continue reading

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New York air quality among worst in world as haze from western wildfires shrouds city

Smoke from wildfires in the west caused hazy skies as air quality index surged to 157 in Manhattan, well above threshold of 100 New York City air quality was among the worst in the world as cities across the eastern … Continue reading

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As wind drops and stubble smoulders, smog returns to New Delhi

Air quality in India’s capital, New Delhi, deteriorated sharply on Tuesday as wind died down just as the burning of crop waste in fields sent smoke billowing across the north of the country. A smoggy haze settled over the city, … Continue reading

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Study finds that air pollution is a driver of residential electricity demand

A study conducted by Associate Professor Alberto Salvo from the Department of Economics at the National University of Singapore (NUS) Faculty of Arts and Social Sciences revealed that households respond to ambient air pollution by increasing electricity consumption, which in … Continue reading

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Northern Thailand chokes under shroud of smog

Chiang Mai may have fallen to third in the race for world’s worst air quality today, but northern Thailand is still choking under a blanket of toxic haze, and the Thai Meteorological Department has forecast “hot to very hot conditions” … Continue reading

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Air Quality Levels in Northern Thailand at Unsafe Levels

Chiang Mai yesterday afternoon (March 10) became once again the city with the worst air quality in the world, according to AirVisual.com. Chiang Mai’s air quality index (AQI) had a PM2.5 level of 239 micrograms per cubic metre on average. … Continue reading

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