Word: nitric
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Dates: during 1980-1989
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Elizabeth authorities mobilized the town's entire 250-man fire department as soon as the blaze began. Because dangerous nitric and picric acids, pesticides and plasticizers were stored at the burning dump, officials also closed public and private schools in both Elizabeth and Staten Island, and urged residents to stay at home and keep windows closed...
...pelted the slopes of the Rockies, and has already affected Scandinavia and much of industrialized Western Europe and Japan. It is a newly recognized and increasingly harmful kind of pollution, invisible and insidious: acid rain, a corrosive precipitation that actually consists of weak solutions of sulfuric and nitric acids...
...dioxide emissions from coal-burning power plants, smelters and factories. To a lesser extent, nitrogen oxides from car exhausts and industry contribute to the problem. Rising high into the sky and borne hundreds of miles by winds, these chemicals mix and react with water vapor to form sulfuric and nitric acids. The acids then fall to earth in the form of rain or snow that can damage anything from monuments to living organisms. After a number of such rain showers or highly acidic snow melts, a lake's pH* can plunge low enough to impair the egg-producing ability...