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Van Manh P, Tai PT, Phuong NM, Nishijo M, Trung DM, Thao PN, Son HA, Van Tuan T, Van Chuyen N, Van Long N, Van Khoi N, Linh NT, Van Luong H, Quyet DB. Serum dioxin concentrations in military workers at three dioxin-contaminated airbases in Vietnam. Chemosphere 2021; 266:129024. [PMID: 33272665 DOI: 10.1016/j.chemosphere.2020.129024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 10/15/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
An estimated 91,998,400 L of herbicides were stocked at three US airbases in Vietnam between 1962 and 1971. These herbicides were contaminated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-tetraCDD). In 2017, we sampled blood from 120 male Vietnamese military workers in the three dioxin-contaminated airbases (Bien Hoa, Da Nang, and Phu Cat) and from 20 workers at an uncontaminated airbase. 2,3,7,8-tetraCDD concentrations were highest in samples from Bien Hoa (18.2 pg/g lipid), followed by samples from Da Nang (9.2 pg/g lipid), Phu Cat (3.7 pg/g lipid), and the reference base (2.1 pg/g lipid). In Bien Hoa, 31 of the 50 subjects had blood 2,3,7,8-tetraCDD levels in the range of 10-100 pg/g lipid and four subjects had 2,3,7,8-tetraCDD levels that exceeded 100 pg/g lipid. In Da Nang, almost half of the subjects had blood 2,3,7,8-tetraCDD concentrations in the range of 10-100 pg/g lipid. These findings suggest that military workers at contaminated bases are the population most vulnerable to dioxin exposure, especially at Bien Hoa.
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Affiliation(s)
- Phan Van Manh
- Department of Occupational Medicine, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Pham The Tai
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam.
| | - Nguyen Minh Phuong
- Department of Occupational Medicine, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Muneko Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Do Minh Trung
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Pham Ngoc Thao
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam; Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Ho Anh Son
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Tran Van Tuan
- Department of Military Hygiene, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Nguyen Van Chuyen
- Department of Military Hygiene, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Nguyen Van Long
- Department of Military Science, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Nguyen Van Khoi
- Department of Military Science, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Nguyen Tung Linh
- Department of Military Science, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Hoang Van Luong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Do Ba Quyet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
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