Abstract:
Objectives To analyze the sanitary status of drinking water in rural areas of Ganzhou city in Jiangxi province in 2014, and to provide reference for relevant government departments.
Methods A unified questionnaire was used to investigate the basic situation of drinking water in 11 counties of Ganzhou city in dry and wet seasons. Water samples were collected to carry out 33 indicators based on the "Standard Examination Methods for Drinking Water" (GB/T 5750-2006). The results of water quality were evaluated and compared with the "Sanitary Standard for Drinking Water" (GB 5749-2006).
Results The coverage rates of rural centralized and decentralized water supplies were 38.10% and 61.90% respectively. The methods for water treatment were complete treatment, precipitation and filtration, disinfection and untreated, which were accounted for 2.88%, 40.21%, 1.72% and 55.18%, respectively. The qualified rate of water in the whole year was 23.60%; the qualified rales in dry and wet seasons were 25.07% and 22.13% respectively; the qualified rates of terminal piped treated water and waterwoks water were 24.34% and 22.99% respectively. The unqualified rates of total coliform group, thermotolerant coliforms, total bacteria counts, turbidity and visible matters were 69.20%, 65.00%, 17.00%, 14.93% and 13.80%, respectively. The proportion of people having qualified drinking-water supply was 34.20%.
Conclusions In rural areas of Ganzhou city, decentralized water supply was the main type of water supplies. The water in majority of centralized water supplies were untreated. The qualified rates of most rural drinking water supplies were low, most microbial indicators were higher than the those atstandard limits, the status on hygiene and safety of rural drinking water should be improved. The coverage of qualified water was still in a small percentage of population.
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