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Relationships between extreme flows and microbial contamination in inland recreational swimming areas
Journal of Water & Health ( IF 2.3 ) Pub Date : 2022-05-01 , DOI: 10.2166/wh.2022.294
Kathryn Vincent 1 , Danswell Starrs 2 , Victoria Wansink 3 , Natasha Waters 3 , Aparna Lal 4
Affiliation  

Inland recreational swimming sites provide significant social value globally. This study focused on public recreational swimming sites across the Murrumbidgee River and its tributaries in the Australian Capital Territory (ACT) throughout the swimming season (September–April) from 2009 to 2020 to determine whether high intestinal enterococci concentrations could be predicted with flow exceedance and routinely monitored physical and chemical parameters of water quality. Enterococci concentrations were positively correlated with the turbidity associated with high-flow conditions. The predictive accuracy of high enterococci levels during high-flow conditions was good (mean percentage correctly classified, 60%). The prediction of high enterococci levels at low flows was significantly less reliable (mean percentage correctly classified, 12–15%). As the ACT is expected to experience decreases in rainfall overall but increases in extreme rainfall events due to climate change, understanding the drivers of elevated intestinal enterococci under extreme flow conditions remains important from a public health perspective.



中文翻译:

内陆休闲游泳区极端流量与微生物污染的关系

内陆休闲游泳场所在全球范围内提供了重要的社会价值。本研究的重点是在 2009 年至 2020 年整个游泳季节(9 月至 4 月)期间,澳大利亚首都特区 (ACT) 的 Murrumbidgee 河及其支流的公共休闲游泳场所,以确定是否可以通过流量超标预测高肠道肠球菌浓度和定期监测水质的物理和化学参数。肠球菌浓度与高流量条件下的浊度呈正相关。在高流量条件下高肠球菌水平的预测准确性很好(正确分类的平均百分比,60%)。在低流量下对高肠球菌水平的预测明显不太可靠(正确分类的平均百分比,12-15%)。

更新日期:2022-05-01
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