Ninety percent of homes in the U.S. Virgin Islands rely on rainwater collected in catchment systems, such as water tanks, as the main residential water. 在2019年7月至8月期间卫生署在疾病预防控制中心（CDC）和当地合作伙伴的支持下，访问了所有三个岛屿的400户家庭，研究了家庭水箱的水质，以更好地了解水传播疾病的潜在风险。 Hohhot Reservoir , July to August 2019, with the support of the Centers for Disease Control and Prevention (CDC) and local partners, visited 400 households on all three islands to study the water quality of household water tanks. Better understand the potential risks of water-borne diseases.
The results of this research will help make recommendations for improving the safe management of water quality in storage tanks and helping to protect the health of communities.
The study found that 80% of the tank water (taken directly from the tank hatch) was positive for E. coli contamination, while 58% of the tap water from the reservoir (taken from the kitchen tap) was positive for E. coli contamination. In previous studies (19 studies worldwide), the prevalence of reservoirs tested positive for E. coli contamination was between 24% and 92%, with an average of 54%.
Previous research by the Ministry of Health found that 18% of households drink their tank water directly.
Health officials would like to remind residents that water contaminated with E. coli should not be used for drinking, including drinking water, cooking and brushing teeth. In addition, well-maintained water treatment systems (such as systems with multi-stage filters and / or ultraviolet (UV) lamps) can provide safe drinking water.
Tank water may be unsafe during and after an emergency. 呼和浩特化粪池 烹饪和刷牙。 If there is no safe water, use bottled water to drink, cook and brush your teeth in Hohhot septic tank . If bottled water is not available in an emergency, boil (more than 1 minute) or disinfect once a gallon or less of water in a tank (1/8 teaspoon of bleach per gallon).
The Ministry of Health is working with the Centers for Disease Control and Prevention to identify additional recommendations for families based on research data to improve water quality in tanks.
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