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Objective To understand the sanitary condition of secondarywater supply in jinan railway area and provide scientific basis forrailway departments to improve secondary water supply. Methods Accordingto ( Standard test method for drinking water $\}$ , we sampled and tested the waterquality. On the basis of $《$ Hygienic specification for facilities of secondary water supply》, weanalyzed the data about engineering acceptance and daily detection waterquality. Results Daily detection of secondary water supply qualifiedrate was ${82.69}\%$ , higher thanengineering acceptance of secondary water supply qualified rate ${65.77}\%\left({P <{0.05}}\right)$ .Acoording to the daily detection qualified rate analysis of secondarywater supply, the qualified rate of water supply from living area,passenger station, well of the train track and train water tank wasdecreased successively. The difference of the qualification rate amongthe sampling locations is statistically significant $\left({P <{0.05}}\right)$ ; Thequalified rate in each month is all above ${74}\%$ . The qualified rate in March,April, June and September is below 80%.Soil microbial indicators anddisinfectant indicators qualified rate trend consistent with allindicators qualified rate trend. The qualified rate of ex-factory waterwas ${90.54}\%$ , which was higherthan ${81.19}\%$ of peripheral water $\left({P <{0.05}}\right)$ . Theunqualified soil microbial indicators and disinfectant indicators arethe main factors causing the unqualified secondary water supply. Conclusion The qualified rate of secondary water supply in jinan railwayarea is higher than other water supply types, but there are hiddendangers in the health situation. The supervision of secondary watersupply should have further strengthen.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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