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以粪大肠菌和异养细菌总数做指标，对西安地区旅游景点水体的卫生细萌学状况进行了调查。结果表明，西安市区内旅游景点的人工湖、天然湖等大都受到不同程度的污染，而离市区较远、海拔较高的旅游景点则污染较轻。
The total number of fecal coliform bacteria and heterotrophic bacteria as an indicator of the health status of tourist attractions in Xiuning water Meng conducted surveys. The results show that most of the artificial lakes and natural lakes in tourist spots in Xi’an are polluted to some extent, while the tourist spots far away from urban areas and higher altitudes are less polluted.