Thick smog causes air quality levels in to hit hazardous levels:: Hanoi, Vietnam:::: Nguyen Ninh Huong, Student“In the early ...

A local Air Quality Status Map showed air quality levels in the “hazardous” range in multiple areas of the Valley early ...

If you step outside in many parts of the Valley after ringing in the new year, you’ll likely notice the poor air quality or see a hazy blanket over the land.

New Year's celebrations led to hazardous air quality in the Valley, with advisories against burning and recommendations to ...

which is considered "Hazardous" for residents. With a population exceeding 11 million, the city has long struggled with poor air quality, largely due to vehicle emissions, industrial activities ...

which is considered "Hazardous" for residents. With a population exceeding 11 million, the city has long struggled with poor air quality, largely due to vehicle emissions, industrial activities ...

which collects data from departments like the Arizona Department of Environmental Quality (ADEQ), showed a hazardous air quality reading. "The levels for both PM10 and PM2.5 – those are the ...