Bacterial pollution before and after sterilization was compared.

同时对消毒前后的细菌污染情况进行对照。

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Bacterial pollution of the indoor air in 124 dormitory bedrooms of a university was investigated by using fallen-plate method.

采用沉降平板法调查了某大学124间学生宿舍空气中的细菌污染情况。

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OBJECTIVE To analyse the relationship of storage time of the gauze with the environmental and bacterial pollution after high pressure sterilization.

目的研究高压灭菌凡士林纱布的存放时间、环境与细菌污染之间的关系。

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Combined with the funnelling affect of the Bay of Biscay trapping litter and debris in the north Atlantic, this means the beaches are routinely closed due to dangerous levels of bacterial pollution.

BBC: Where to go while Biarritz battles beach pollution