Wide range of plasticizers use, pollution area large number of people affected than the pesticide, DDT, such as greater.
增塑剂使用范围之广，污染面积之大，影响人数之多，比农药、DDT等有过之而无不及。
During the process of reconnaissance, exploitation, transportation and deposit, a large area around the oil field suffered from serious pollution.
在石油的勘察、开采、运输以及储存过程中，油田周围大面积土壤都受到严重的污染。
The important reason of causing our country source of water supplying insufficient and national water environment pollution in some area is low water efficiency and large sewage emission.
造成我国部分地区水源供给不足和全国水环境普遍污染的重要原因是用水效率低和污水排放量大。
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