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Heavy metal(loid)s and nutrients in sewage sludge in Portugal - Suitability for use in agricultural soils and assessment of potential risks.
Sci Total Environ
January 2025
LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal. Electronic address:
The presence of heavy metal(loid)s in sewage sludge is a cause of concern and an obstacle to its agricultural valorisation. This study analysed the elemental composition of sewage sludge from 42 Portuguese wastewater treatment plants (WWTPs) during summer and winter, investigating heavy metal(loid) contamination, nutrient content, and potential risks related to sludge application to agricultural soils. Levels of 8 heavy metal(loid)s were investigated, ranging from not detected (Hg) to 5120 mg kg dw (Zn), decreasing in the order Zn > Cu > Cr > Ni > Pb > As>Cd > Hg.
View Article and Find Full Text PDFCase series and clinical analysis of acute hydrogen sulfide poisoning: Experience from 10 cases at a hospital in Zhoushan.
Toxicol Ind Health
December 2024
Department of Emergency, Zhoushan Hospital of Zhejiang Province, Zhoushan, China.
This study investigated the etiology, clinical features, and management of acute hydrogen sulfide (HS) poisoning in Zhoushan. A retrospective analysis was conducted on 10 patients admitted to our hospital between August and September 2023 due to two incidents of acute HS poisoning. The first incident involved fishermen working in a fishing cabin (6 patients), while the second involved sanitation workers during sewer maintenance (4 patients).
View Article and Find Full Text PDFParticipatory Training Activities in South Asia for Promoting Safety and Health in Informal Economy Workplaces-Roles of Trade Unions and Employer Organizations.
Saf Health Work
December 2024
ILO Decent Work Technical Support Team for South Asia, New Delhi, India.
Workers and employers in the informal economy are often outside the scope of legal frameworks of occupational safety and health (OSH) service in South Asia. The present study aimed to find practical support measures to improve their safety and health. International Labour Organization's participatory training activities in five selected informal economy workplaces comprising waste collection and recycling in India, sewage cleaning in Pakistan, home-based manufacturing in Nepal, small-scale construction in Nepal, and cotton farming in India were studied.
View Article and Find Full Text PDFOccupation-related respiratory diseases among sanitary workers in the workplace: a systematic review and meta-analysis.
Front Public Health
December 2024
Haramaya University College of Health and Medical Sciences, Harar, Ethiopia.
Introduction: Emerging evidence from both developed and developing countries indicates that occupation-related respiratory diseases (ORRD) among sanitary workers constitute a significant public health challenge. These are because of the working environment, where employees are more likely to be at risk in an unsafe workplace, especially sanitary workers. Therefore, the purpose of this systematic review and meta-analysis was to estimate the prevalence of ORRD among sanitary workers.
View Article and Find Full Text PDFRisk-oriented source apportionment and implications for mitigation strategies of VOCs in industrial parks: Insights from odor pollution and health risks.
Environ Int
November 2024
Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China.
A typical industrial park in the upper reaches of the Yangtze River Economic Belt, which is 70 km from the Chongqing urban center, was used to investigate the occurrence and exposure of harmful volatile organic compounds (VOCs). An exposure risk method and a risk-oriented source apportionment approach were performed to assess the inhalation risks and apportion VOC sources, respectively. The quantitative relationships between risk factors and pollution sources were established, identifying key pathogenic and odorous VOCs.
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