Environmental and anthropogenic factors associated with the likelihood of detecting Salmonella in agricultural watersheds.
Environmental and anthropogenic factors associated with the likelihood of detecting Salmonella in agricultural watersheds.
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与农业流域中检测到沙门氏菌的可能性相关的环境和人为因素。
DOI：
10.1016/j.envpol.2022.119298
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Adell,AikoD
中科院分区：
文献类型：
--
作者：
Toro,Magaly;Weller,Daniel;Ramos,Romina;Diaz,Leonela;Alvarez,FranciscaP;Reyes-Jara,Angelica;Moreno-Switt,AndreaI;Meng,Jianghong;Adell,AikoD
地表水是农产品生产的主要灌溉水源之一，因此，其被食源性病原体（如沙门氏菌）污染可能会严重影响公众健康。在这项研究中，我们确定了表面水沙门氏菌的存在，并表征了沙门氏菌检测与环境和人为因素之间的关系。从2019年4月到2020年2月，在智利中部两个不同农业区的四个流域（N = 1080）每月从30个地点收集120个样本。从河流，运河，溪流和池塘连接到每个分水岭的水样。现场过滤地表水（10 L），分析样品中沙门氏菌的存在，所有流域每月都检测到沙门氏菌，各采样点的平均检出率为28%（0%-90%），与季节无关。总体而言，两个地区的检出率相似：大都会区为29.1%，马乌莱区为27.0%。沙门氏菌在夏季检出率最高（39.8%的夏季样本检测为阳性），冬季检出率最低（14.4%的冬季样本）。随机森林分析表明，季节、水源和月份是影响沙门氏菌检出率的最重要因素，其次是纬度和河流。水的pH值和温度（分类为环境因素）和与人类活动相关的因素（分类为人为因素）在采样点登记的影响与沙门氏菌检测弱或没有关联。总之，在可能用于灌溉的地表水中检测到沙门氏菌，其存在与季节和水源因素有关。有必要采取干预措施，防止农产品受到污染，例如灌溉前的水处理。
Surface water is one of the primary sources of irrigation water for produce production; therefore, its contamination by foodborne pathogens, such asSalmonella,may substantially impact public health. In this study, we determined the presence ofSalmonellain surface water and characterized the relationship betweenSalmonelladetection and environmental and anthropogenic factors. From April 2019 to February 2020, 120 samples from 30 sites were collected monthly in four watersheds located in two different central Chile agricultural regions (N = 1080). Water samples from rivers, canals, streams, and ponds linked to each watershed were obtained. Surface water (10 L) was filtratedin situ,and samples were analyzed for the presence ofSalmonella.Salmonellawas detected every month in all watersheds, with a mean detection percentage of 28% (0%–90%) across sampling sites, regardless of the season. Overall, similar detection percentages were observed for both regions: 29.1% for Metropolitan and 27.0% for Maule.Salmonellawas most often detected in summer (39.8% of all summer samples tested positive) and least often in winter (14.4% of winter samples). Random forest analysis showed that season, water source, and month, followed by latitude and river, were the most influential factors associated withSalmonelladetection. The influences of water pH and temperature (categorized as environmental factors) and factors associated with human activity (categorized as anthropogenic factors) registered at the sampling site were weakly or not associated withSalmonelladetection. In conclusion,Salmonellawas detected in surface water potentially used for irrigation, and its presence was linked to season and water source factors. Interventions are necessary to prevent contamination of produce, such as water treatment before irrigation.
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根据佛罗里达地表水中的生物、化学和物理指标预测沙门氏菌种群
影响因子：
4.4
作者：
R. McEgan;Gabriel Mootian;L. Goodridge;D. Schaffner;M. Danyluk
通讯作者：
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DOI：
--
发表时间：
2017
期刊：
影响因子：
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DOI：
--
发表时间：
2015
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影响因子：
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作者：
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美国西部农业供水微生物质量的时空变异：一项多州研究。
影响因子：
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作者：
M. Partyka;Ronald F Bond;J. Chase;E. Atwill
通讯作者：
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影响因子：
4.4
作者：
Kurtz JR;Goggins JA;McLachlan JB
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McLachlan JB