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加纳南部资源匮乏沿海城郊定居点中垃圾处理人员的粪便污染风险。

Risk of faecal pollution among waste handlers in a resource-deprived coastal peri-urban settlement in Southern Ghana.

机构信息

Department of Physician Assistantship Studies, School of Medicine and Health Sciences, Central University, Miotso, Accra, Ghana.

Department of Biological, Environmental and Occupational Health Sciences, School of Public Health, College of Health Sciences, University of Ghana, Legon, Accra, Ghana.

出版信息

PLoS One. 2020 Oct 2;15(10):e0239587. doi: 10.1371/journal.pone.0239587. eCollection 2020.

Abstract

Resource-deprived coastal peri-urban settlements in Southern Ghana are characterized by indiscriminate solid waste disposal and open defecation practices. Persons engaged in waste handling in such communities perform their activities with little or no personal protective equipment. They are thus confronted with the risk of faecal pollution of the hands and other bodily parts. A mixed method approach was used to investigate 280 waste handlers performing different activities to estimate recent faecal pollution of their hands and to observe the utilization of personal protective equipment and sanitation/hygiene facilities during work. The log concentration of E. coli on hands of waste handlers after work (8.60 ± 4.20 CFU/hand, mean ± standard deviation) was significantly higher compared with the E. coli log concentration before work (2.95 ± 1.89 CFU/hand, mean ± standard deviation) (p<0.001). The odds of faecal pollution was significantly higher (aOR 4.2; 95% CI: 1.9-9.1) for workers aged 35 years and above compared with those less than 35 years; and for workers at public toilet facilities (aOR 3.0; 95% CI: 1.0-8.4) compared with those who worked for private waste handling companies. Female workers were, however, 60% less likely (aOR 0.4; 95% CI: 0.2-0.8) to experience faecal pollution of their hands compared with males. The workers had limited access to water and sanitation and hygiene facilities, and about one-fifth (n = 59; 21.1%) did not use personal protective equipment during work. Waste handlers should be provided and instructed in proper use of personal protective equipment, have access to sanitation facilities and adopt improved hygiene behaviour to avoid the risk of faecal pollution and associated disease risk.

摘要

加纳南部资源匮乏的沿海城郊定居点的特点是随意丢弃固体废物和露天排便。在这些社区从事废物处理工作的人在工作时几乎或完全没有个人防护设备。因此,他们面临着粪便污染手部和其他身体部位的风险。本研究采用混合方法调查了 280 名从事不同活动的废物处理人员,以估计其手部近期粪便污染情况,并观察工作期间个人防护设备和卫生/卫生设施的使用情况。与工作前(2.95 ± 1.89 CFU/hand,平均值 ± 标准偏差)相比,工作后废物处理人员手部的大肠杆菌对数浓度(8.60 ± 4.20 CFU/hand,平均值 ± 标准偏差)明显更高(p<0.001)。与 35 岁以下的工人相比,35 岁及以上的工人(优势比 4.2;95%置信区间:1.9-9.1)和在公共厕所设施工作的工人(优势比 3.0;95%置信区间:1.0-8.4)发生粪便污染的几率明显更高。然而,与男性相比,女性工人手部发生粪便污染的几率降低了 60%(优势比 0.4;95%置信区间:0.2-0.8)。工人获得水和卫生及个人卫生设施的机会有限,大约五分之一(n = 59;21.1%)在工作时不使用个人防护设备。应向废物处理人员提供并指导其正确使用个人防护设备,让他们获得卫生设施,并采取改进的卫生行为,以避免粪便污染和相关疾病风险。

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