The features of the dust pollutiondistribution over time and space have been summarized of different areas in Gansu province.
总结出省内不同区域内尘污染时空分布特征，进一步阐明尘类污染是影响我省城市大气环境的重要指标。
2
8 million die annually from pollution and poisoning; and millions of birds are electrocuted each year by transmission and distribution lines carrying power produced by nuclear and coal power plants.
每年有800万人死于污染和中毒；每年有数百万只禽类被运载有核能和燃煤发电厂的电力的输配电线路电死。
3
As lead and arsenic pollution element are skew distribution, statistics of a natural background value and a content of lead and arsenic are worked out using median method of skew distribution.