Acid rain pH. The pH scale ranges from 0 to 14. It tells you how acidic something is. Seven, in the middle, is neutral like pure water. A pH less than 7 means a substance is acidic.

In the 1970s, acid rain was one of the most serious environmental threats in North America and Europe. The air was so laden with pollution from coal power plants and cars at the time that it ...

Acid rain could have formed after the controlled release and burn of chemicals Feb. 6, Kevin Crist, professor of chemical and biomolecular engineering and the director of the Air Quality Center at ...

“Acid rain is a particularly alarming demonstration of the simple adage that what goes up must come down,” former Colorado Sen. Gary Hart said in 1979.

It was the acid rain crisis, and even though wealthy special interests opposed action, the forces of environmentalism actually prevailed… with Republican help, no less.

"Acid rain" is rain (or any other kind of precipitation) that is abnormally acidic. The acid in acid rain comes from sulphur and nitrogen oxides – air pollutants emitted by (among other sources) motor ...

Acid rain could have formed after the controlled release and burn of chemicals Feb. 6, Kevin Crist, professor of chemical and biomolecular engineering and the director of the Air Quality Center at ...

Acid rain, however, usually falls between a range of 5 to 5.5 on the pH scale, meaning it’s more corrosive. Though making contact with acid rain won’t burn your skin off, you might experience ...

Unlike acid rain, which is rain that absorbs toxic pollutants released into the atmosphere by factories and manufacturers, "dirty" rain absorbs the dust particles brought over by winds and is ...

"Acid rain" is rain (or any other kind of precipitation) that is abnormally acidic. The acid in acid rain comes from sulphur and nitrogen oxides – air pollutants emitted by (among other sources) motor ...