2007年6月5日星期二
Ozone
Ozone(O3) is an important compound in the atmosphere because it helps to shield us from harmful radiation of the sun. At the same time man made ozone is a pollutant. We discussed ozone, and decided to try to identify and eliminate those items that may contain chemicals damaging to the atmospheric ozone; and to limit use of fossil fuel burning machines and vehicles so as not to contribute to ozone pollution.
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