Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir
Human beings are frequently exposed to a mixture of chemical pollutants through the ingestion of contaminated drinking water. The present study aimed to assess the ecological and human health risks associated with the contamination of cyanotoxins and heavy metals in a drinking water supply reservoir...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-08-01
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| Series: | Journal of Water and Health |
| Subjects: | |
| Online Access: | http://jwh.iwaponline.com/content/21/8/1004 |
| _version_ | 1797689441281638400 |
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| author | Luu Thanh Pham Yen Thi Hoang Tran Thai Thanh Tran Ha Manh Bui Luom Thi Le Son Thanh Dao Duc Tan Nguyen |
| author_facet | Luu Thanh Pham Yen Thi Hoang Tran Thai Thanh Tran Ha Manh Bui Luom Thi Le Son Thanh Dao Duc Tan Nguyen |
| author_sort | Luu Thanh Pham |
| collection | DOAJ |
| description | Human beings are frequently exposed to a mixture of chemical pollutants through the ingestion of contaminated drinking water. The present study aimed to assess the ecological and human health risks associated with the contamination of cyanotoxins and heavy metals in a drinking water supply reservoir, the Tri An Reservoir (TAR), in Vietnam. Results demonstrated that the concentrations of individual heavy metals varied in the following order: iron (Fe) > lead (Pb) > arsenic (As) > zinc (Zn). Although the ecological potential risk of heavy metals was low during the study period, the concentration of Fe sometimes exceeded the Vietnamese standard for drinking water. Toxic cyanobacteria and microcystins (MCs) frequently occurred in the TAR with the highest density of 198.7 × 103 cells/mL and 7.8 μg/L, respectively, indicating a high risk of health impacts to humans. The results of the study indicate that exposure to heavy metals does not pose any non-carcinogenic health risks for both adults and children. However, the contamination of MCs in the surface water posed a serious disease enhancement to both adults and children through direct ingestion and dermal absorption.
HIGHLIGHTS
The ecological and human health risks associated with the contamination of cyanotoxins and heavy metals were investigated.;
Water was contaminated with cyanotoxins and iron.;
The potential risks of heavy metals were low, but the concentration of cyanotoxins indicated a high risk to human health.;
This study highlights the ecological and human risks from exposure to mixtures of pollutants.; |
| first_indexed | 2024-03-12T01:45:40Z |
| format | Article |
| id | doaj.art-b045313536b9411ead7521c2cf543242 |
| institution | Directory Open Access Journal |
| issn | 1477-8920 1996-7829 |
| language | English |
| last_indexed | 2024-03-12T01:45:40Z |
| publishDate | 2023-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Journal of Water and Health |
| spelling | doaj.art-b045313536b9411ead7521c2cf5432422023-09-09T08:17:43ZengIWA PublishingJournal of Water and Health1477-89201996-78292023-08-012181004101610.2166/wh.2023.027027Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoirLuu Thanh Pham0Yen Thi Hoang Tran1Thai Thanh Tran2Ha Manh Bui3Luom Thi Le4Son Thanh Dao5Duc Tan Nguyen6 Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 100000, Vietnam Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City 700000, Vietnam Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City 700000, Vietnam Faculty of Environment, Saigon University, 273 An Duong Vuong Street, District 5, Ho Chi Minh City 700000, Vietnam Dong Nai Technical Resources and Environment Center, Dong Khoi Street, Tan Hiep Ward, Bien Hoa City, Dong Nai Province 810000, Vietnam Department of Environmental Management, Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Vietnam Department of Production Systems Engineering, Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo, Nagasaki City, Japan Human beings are frequently exposed to a mixture of chemical pollutants through the ingestion of contaminated drinking water. The present study aimed to assess the ecological and human health risks associated with the contamination of cyanotoxins and heavy metals in a drinking water supply reservoir, the Tri An Reservoir (TAR), in Vietnam. Results demonstrated that the concentrations of individual heavy metals varied in the following order: iron (Fe) > lead (Pb) > arsenic (As) > zinc (Zn). Although the ecological potential risk of heavy metals was low during the study period, the concentration of Fe sometimes exceeded the Vietnamese standard for drinking water. Toxic cyanobacteria and microcystins (MCs) frequently occurred in the TAR with the highest density of 198.7 × 103 cells/mL and 7.8 μg/L, respectively, indicating a high risk of health impacts to humans. The results of the study indicate that exposure to heavy metals does not pose any non-carcinogenic health risks for both adults and children. However, the contamination of MCs in the surface water posed a serious disease enhancement to both adults and children through direct ingestion and dermal absorption. HIGHLIGHTS The ecological and human health risks associated with the contamination of cyanotoxins and heavy metals were investigated.; Water was contaminated with cyanotoxins and iron.; The potential risks of heavy metals were low, but the concentration of cyanotoxins indicated a high risk to human health.; This study highlights the ecological and human risks from exposure to mixtures of pollutants.;http://jwh.iwaponline.com/content/21/8/1004cumulative riskhazard quotientmultiple environmental stressorsnon-carcinogenic risktri an reservoir |
| spellingShingle | Luu Thanh Pham Yen Thi Hoang Tran Thai Thanh Tran Ha Manh Bui Luom Thi Le Son Thanh Dao Duc Tan Nguyen Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir Journal of Water and Health cumulative risk hazard quotient multiple environmental stressors non-carcinogenic risk tri an reservoir |
| title | Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| title_full | Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| title_fullStr | Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| title_full_unstemmed | Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| title_short | Ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| title_sort | ecological and human health risk assessments of cyanotoxins and heavy metals in a drinking water supply reservoir |
| topic | cumulative risk hazard quotient multiple environmental stressors non-carcinogenic risk tri an reservoir |
| url | http://jwh.iwaponline.com/content/21/8/1004 |
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