The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

You really can’t overstate the case for visiting Cape Town. First, there’s the in-your-face beauty of a craggy mountain range ...

Contractors on Wednesday blew up the remnants of a damaged southern Minnesota bridge that almost collapsed last summer after a bout of heavy rain that prompted a federal emergency declaration for the ...

At least three people were hospitalized and dozens are displaced after a large fire broke out at an apartment building in north suburban Arlington Heights on Tuesday evening.