ProtecttheEarth要点.pptxVIP

Protect the Earth Guangzhou 86 junior high school Class6 Grade6 GuoXu lin – ALLEN*Joyse 本文档版权所有，qq2567373594 catalogue water pollution （水污染） air pollution （空气污染） combustion pollution （燃烧污染） soil pollution （土地污染） marine environment （海洋环境） air environment （空气环境） city environment （城市环境） forest environment （森林环境） 水 污 染 水污染主要是由人类活动产生的污染物造成，它包括矿山污染源，工业污染源，农业污染源和生活污染源三大部分。 Water pollution is mainly caused by pollutants produced by human activity, which includes mining pollution, industrial pollution, agricultural pollution source and pollution three most of life. 日趋加剧的水污染，已对人类的生存安全构成重大威胁，成为人类健康、经济和社会可持续发展的重大障碍。 Increasingly aggravate the water pollution, already constitute a major threat to the survival of human security, human health, economic and social sustainable development of significant hurdles 1994年7月，淮河上游的河南境内突降暴雨，颍上水库水位急骤上涨超过防洪警戒线，因此开闸泄洪将积蓄于上游一个冬春的2亿立方米水放了下来。水经之处河水泛浊，河面上泡沫密布，顿时鱼虾丧生。下游一些地方居民饮用了虽经自来水厂处理，但未能达到饮用标准的河水后，出现恶心、腹泻、呕吐等症状。经取样检验证实上游来水水质恶化，沿河各自来水厂被迫停止供水达54天之久，百万淮河民众饮水告急，不少地方花高价远途取水饮用，有些地方出现居民抢购矿泉水的场面，这就是震惊中外的淮河水污染事件。 In July 1994, huaihe river upstream of the heavy rain in henan, stands on the reservoir water level rise sharply above flood stage, so the flood discharge will be savings in a winter and spring of 200 million cubic meters of water upstream. The river in the path of water turbidity, foam on the river, fish were killed immediately. Some local residents downstream, although drank the water treatment plant but failed to meet the water after drinking standard, symptoms such as nausea, diarrhea, vomiting. Confirmed by sampling inspection upstream inflow water quality deterioration, respective to water along the river was forced to stop water supply for 54 days, millions of people of the huaihe rive