结果显示：大雨初期污染负荷在总污染负荷中的比例最大达到97.29%，中雨初期污染负荷在总污染负荷中的比例最大达到81.71%，小雨初期污染负荷在总污染负荷中的比例最大达到41.38%。

Results showed that, at the beginning of downfall, the maximum ratio of first flush pollutants load to total pollutants load is 97.29%, which of average rain is 81.71 %, of small rain is 41.38%.

youdao

早在科赫公司精炼厂污水处理活动之前的20世纪初期州法律规定禁止污染州俄克拉荷马水资源，包括地下水。

The pollution of any Oklahoma waters, including groundwater, has been prohibited by state statute since the early 1900s — well before Koch's waste disposal activity at the refinery.

youdao

城市雨水径流特别是初期雨水污染严重，是水体富营养化、华以及海域赤潮等环境问题产生的根源之一。

Urban runoff pollution is serious especially for earlier runoff and it is one of the reasons that lead to water body eutrophic algal bloom and red tide on sea.

youdao