Stillo Frank, MacDonald Gibson Jacqueline
Frank Stillo and Jacqueline MacDonald Gibson are with the Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill.
Am J Public Health. 2017 Jan;107(1):180-185. doi: 10.2105/AJPH.2016.303482. Epub 2016 Nov 17.
To examine drinking water quality in majority Black periurban neighborhoods in Wake County, North Carolina, that are excluded from nearby municipal water service and to estimate the health benefits of extending water service.
We tested 3 samples collected July through December 2014 in 57 private wells for microbial contaminants. We compared contaminant prevalences to those in adjacent community water systems (35 280 samples from routine monitoring). Using a population intervention model, we assessed the number of annual emergency department visits for acute gastrointestinal illness that is preventable by extending water services to the 3799 residents of these periurban communities.
Overall, 29.2% of 171 private well samples tested positive for total coliform bacteria and 6.43% for Escherichia coli, compared with 0.556% and 0.00850% of municipal system samples. An estimated 22% of 114 annual emergency department visits for acute gastrointestinal illness could be prevented by extending community water service.
Predominantly Black periurban neighborhoods excluded from municipal water service have poorer quality drinking water than do adjacent neighborhoods with municipal services. These disparities increase the risk of emergency department visits for acute gastrointestinal illness.
检测北卡罗来纳州韦克县大多数黑人城郊社区的饮用水质量，这些社区无法获得附近的市政供水服务，并评估扩大供水服务的健康益处。
我们在2014年7月至12月期间从57口私人井中采集了3份样本，检测其中的微生物污染物。我们将污染物的检出率与相邻社区供水系统（常规监测的35280份样本）中的检出率进行了比较。使用人群干预模型，我们评估了通过为这些城郊社区的3799名居民提供供水服务可预防的急性胃肠道疾病每年的急诊就诊次数。
总体而言，171份私人井样本中，29.2%的总大肠菌群检测呈阳性，6.43%的大肠杆菌检测呈阳性，而市政系统样本的这一比例分别为0.556%和0.00850%。通过扩大社区供水服务，估计每年114次急性胃肠道疾病急诊就诊中有22%可以避免。
被排除在市政供水服务之外的主要为黑人的城郊社区，其饮用水质量比附近有市政供水服务的社区更差。这些差异增加了因急性胃肠道疾病前往急诊就诊的风险。
