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Delta的空氣品質

Delta空氣品質指數（AQI⁺）和PM2.5空氣污染 • 21:27, 7月 15日

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紐約空氣品質警報：加拿大野火煙霧

Aerial view of wildfire flames and smoke in a dry forest.
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聖嬰現象如何引發野火？

Forest fire with dense smoke cloud above.
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野火地圖焦點：加拿大安大略省西北部野火

Which is the most polluted city in Delta?