Physico-Chemical and Bacteriological Quality of the Vegetable Watering Water in the Dschang Town, Cameroon

作     者：Ntangmo Tsafack Honorine Temgoua Emile Njine Thomas 

作者机构：Laboratory of Applied Biology and EcologyDepartment of Animal Biology Faculty of Sciences University of Dschang PO Box 67Dschang Cameroon Laboratory of General Biology Department of Animal Biology and Physiology Faculty of Sciences University of Yaoundé I PO Box 812 Yaoundé Cameroon Laboratory of Soil Analysis and Environment Chemistry Department of Soil Sciences Faculty of Agronomy and Agricultural Sciences University of Dschang PO Box 222 Dschang Cameroon 

出 版 物：《Journal of Environmental Protection》 (环境保护（英文）)

年 卷 期：2012年第3卷第8期

页      面：949-955页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Watering Water Quality Urban Market Gardening Sanitary Risks 

摘      要：Market gardening, in the swampy lowlands of the Dschangcity, plays an important role in terms of providing employment, and supply the city with fresh products. However, waterborne diseases, which occur in the city, are both attributed to the bad quality of drinking water and sanitation practices. This work aims to characterize watering waters of crop, to assess the health risks associated with the use of these waters. Water from eleven streams and five wells used to irrigate crops were sampled and analyzed once a week for a month. Analyses focused on physico-chemical parameters (temperature, suspended matter, pH, electrical conductivity, COD, BOD5, NO-3 , Al, Fe, Cu, Ni), parasitological (helminthes eggs) and bacteriological (total coliforms, fecal coliforms, fecal streptococcus). The results show that, the physico-chemical quality of well waters generally approaches the WHO standards of crop watering water. The physico-chemical of streams waters and bacteriological quality of wells and streams waters are bad, according to WHO guide. These bad quality waters could contaminate crops, some of which are eaten raw, which is surely a cause of the outbreak of waterborne diseases in the city. The waters from streams are more affected. The pretreatment of the water before use for irrigation of vegetables is highly recommended.