水的卫生质量通常经过检验水中的指示菌如粪大肠菌群(FC)和粪链球菌(FS)的数量而加以评定。在实际工作中,无论是将水样还是现场过滤后将滤膜送回实验室,水样或滤膜经常要暴露于阳光下。为了确定现场条件下阳光对指示菌计数的影响,作者采用标准滤膜法和林(Lin)氏两步复苏法对水样中FC和 The hygienic quality of water is usually assessed by the number of indicator bacteria in water such as fecal coliform (FC) and fecal streptococcus (FS). In practice, the water sample or the membrane is often exposed to the sun, either after the water sample is filtered in the field or sent back to the laboratory. In order to determine the impact of sunlight on the count of indicator bacteria under field conditions, the authors used standard filter method and Lin’s two-step resuscitation method for the determination of FC and