Children and other sensitive groups in Oregon are facing potential adverse health effects, with an air quality map indicating ...

The Portland area is ranked the cleanest in the country by Oxi Fresh. Their study examined several factors including population density, air and drinking water quality, problems ...

Some areas of New Hampshire are some of the best locations in the country for year-round particle pollution, according to the ...

Don’t tell the haters, but Portland is, apparently, the “cleanest metro” in the United States. (Here, a note: My email is at the end of this story and you are free to respond to this article and tell ...

Children and other sensitive groups are being urged to remain indoors today across parts of southern California, Oregon and ...