评估因休闲暴露于费城合流下水道溢流影响的水域而获得急性胃肠道疾病(AGI)的风险:一项定量微生物风险评估

IF 3 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Shannon M. McGinnis , Tucker Burch , Heather M. Murphy
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引用次数: 6

摘要

综合下水道溢流(CSOs)是城市水道中人类粪便污染的已知贡献者。在娱乐活动中,包括游泳、涉水和钓鱼,人们都会接触到这些水道。本研究采用定量微生物风险评估(QMRA)来评估受cso影响(<24小时后CSO)和未受影响(>24小时后的CSO)条件。从2017年6月至2019年8月,从费城的两条小溪和一条河流收集水样(n = 69)。测定HF183浓度以估计5种参考病原体的浓度:隐孢子虫、贾第鞭毛虫、诺如病毒、大肠杆菌O157:H7和沙门氏菌。还收集了娱乐性接触的类型和频率的观察数据。结果发现,再创造<24小时后,CSO使AGI风险增加了39-75%。CSO后24小时。然而,对于某些暴露情景,估计的健康风险仍然很高。CSO后24小时。粗略估计确定,在费城,沿已知的受cso影响的地点进行的娱乐活动可能占所有沙门氏菌病、隐孢子虫病和贾第虫病病例的1-8%。调查结果支持旨在减少城市环境中公民社会组织频率的减少风险战略,并可能有助于确定风险缓解战略的目标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the risk of acute gastrointestinal illness (AGI) acquired through recreational exposure to combined sewer overflow-impacted waters in Philadelphia: A quantitative microbial risk assessment

Combined sewer overflows (CSOs) are known contributors of human fecal pollution in urban waterways. Exposure to these waterways occurs during recreational activities, including swimming, wading, and fishing. This study used quantitative microbial risk assessment (QMRA) to estimate the risk of acute gastrointestinal illness (AGI) due to recreation during CSO-impacted (< 24 h after a CSO) and non-impacted (> 24 h after a CSO) conditions. Water samples (n = 69) were collected from two creeks and one river in Philadelphia from June–August 2017–2019. HF183 concentrations were measured to estimate concentrations of five reference pathogens: Cryptosporidium, Giardia, norovirus, E. coli O157:H7, and Salmonella. Observational data on the types and frequency of recreational exposures were also collected. Results found that recreating < 24 h after a CSO increased AGI risk by 39–75%, compared to recreating > 24 h after a CSO. However, estimated health risks were still high for some exposure scenarios that occurred > 24 h after a CSO. Crudes estimates determined that recreational activities along known CSO-impacted sites may account for 1–8% of all cases of salmonellosis, cryptosporidiosis, and giardiasis in the city of Philadelphia. Findings support risk reduction strategies that aim to reduce the frequency of CSOs in urban settings and may help target risk mitigation strategies.

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来源期刊
Microbial Risk Analysis
Microbial Risk Analysis Medicine-Microbiology (medical)
CiteScore
5.70
自引率
7.10%
发文量
28
审稿时长
52 days
期刊介绍: The journal Microbial Risk Analysis accepts articles dealing with the study of risk analysis applied to microbial hazards. Manuscripts should at least cover any of the components of risk assessment (risk characterization, exposure assessment, etc.), risk management and/or risk communication in any microbiology field (clinical, environmental, food, veterinary, etc.). This journal also accepts article dealing with predictive microbiology, quantitative microbial ecology, mathematical modeling, risk studies applied to microbial ecology, quantitative microbiology for epidemiological studies, statistical methods applied to microbiology, and laws and regulatory policies aimed at lessening the risk of microbial hazards. Work focusing on risk studies of viruses, parasites, microbial toxins, antimicrobial resistant organisms, genetically modified organisms (GMOs), and recombinant DNA products are also acceptable.
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