Dictionary definition: acid rain

Article: E. China province in dire need of controlling acid ...
Xinhua News Agency;  May 14, 2004 ;     349 words ... ... down from a 4.89 pH value in 2002. The international ... standard for determining acid rain is a pH value of 5.6 and below ... Jiangxi suffered from acid rain pollution in 2003 ... City where the rainfall pH value averaged only 3.67 ...

Article: ACID RAIN IN CHINA'S JIANGXI PROVINCE
United Press International;  May 14, 2004 ;     279 words ... ... problems attributed to acid rain. The international standard for detecting acid rain is a pH value of 5.6 or lower ... problems related to acid rain pollution during 2003 ... Pingxiang where the rainfall pH value averaged 3.67. SUBJECT ...

Article: Chinese Scientists Detect Acid Rain at South Pole
Xinhua English Newswire;  August 13, 1998 ;     382 words ... ... scientists have detected acid rain at the South Pole. The scientists measured a 5.46 pH value during a recent rainstorm ... standard for determining acid rain is a pH value of 5.6 and below. Acid rain has been detected in the ...

Dictionary definition: acid rain
A Dictionary of Chemistry;      395 words ...acid rain Precipitation having a pH value of less than about 5.0, which has adverse effects on the fauna ... presence of dissolved carbon dioxide (forming carbonic acid). Acid rain results from the emission into the atmosphere of various pollutant ...

Article: Control Acid Rain and Sulfur Dioxide Pollution, ...
China Chemical Reporter;  March 16, 1998 ;     700+ words ... ... become the worst acid rain pollution area in ... average annual rainfall pH value is less than 4.0 and the acid rain frequency reaches ... average annual rainfall pH value of less than 5 ... total territory. Acid rain is therefore getting ...

Article: National Audubon president to conduct news conference and ...
PR Newswire;  June 7, 1988 ;     700+ words ... ... 17, at the site of an acid rain monitoring station in ... the nationwide Citizens Acid Rain Monitoring Network that ... states hardest hit by acid rain. Normal rain usually ... 6 -- the lower the pH value, the higher the acidity ...

Article: Pupils Tap Into Study Of World's Acid ...
The Washington Post;  June 9, 1988 ;     700+ words ... ... highest concentrations of acid rain. "Acid rain is a big problem in ... Washington to have a pH value of 5.5, moderately ... water, which has a pH value of 7. "It is polluting ... is a major source of acid rain. "People should use ...