Environmental health risk assessment of dioxin in foods at the two most severe dioxin hot spots in Vietnam

Tuyet-Hanh, Tran Thi; Minh, Nguyen Hung; Vu-Anh, Le; Dunne, Michael P.; Toms, Leisa-Maree; Tenkate, Thomas; Thi, Minh-Hue Nguyen; Harden, Fiona

doi:10.1016/j.ijheh.2015.03.014

Cited by 35 publications

(11 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Vietnamese areas sprayed with Agent Orange, the levels in foods ranged from 3.2 pg WHO-TEQ/g to 8.2 pg WHO-TEQ/g fat [ 25 ]. The “high-risk foods” in regards to the samples cultivated locally (e.g., free-range chicken meat and eggs, ducks, freshwater fish, snail, and beef) showed PCDD/F concentrations in the range of 3.8 pg WHO-TEQ/g to 95 pg WHO-TEQ/g, while the concentrations in “low-risk foods” ranged from 0.03 pg WHO-TEQ/g to 6.1 pg WHO-TEQ/g (e.g., caged chicken meat and eggs, seafood, pork, leafy vegetables, fruits, and rice) [ 26 ]. All data analyzed from both “high-risk foods” and “low-risk foods” from Vietnam were clearly higher than those in Taiwan.…”

Section: Resultsmentioning

confidence: 99%

Temporal trend of polychlorinated dibenzo-p-dioxin/polychlorinated dibenzofuran and dioxin like-polychlorinated biphenyl concentrations in food from Taiwan markets during 2004–2012

Lee

Lin

Kao

et al. 2016

Journal of Food and Drug Analysis

View full text Add to dashboard Cite

The levels of polychlorinated dibenzo-p-dioxin (PCDD) and polychlorinated dibenzofuran (PCDF) or polychlorinated biphenyl (PCB) in foodstuffs have decreased over the past decade in many countries. However, the trend for the levels of these compounds in foodstuffs in Taiwan remains unknown. In this study, we compared the distribution of PCDD/F and PCB in nine foodstuff categories acquired from Taiwan markets from 2004 to 2012. The levels expressed as World Health Organization toxic equivalents (WHO-TEQs) in the different foodstuffs tested were as follows: fish, average 0.463 pg WHO-TEQ/g sample > seafood, 0.163 pg WHO-TEQ/g > eggs, 0.150 pg WHO-TEQ/g > oils, 0.126 pg WHO-TEQ/g > meats, 0.095 pg WHO-TEQ/g > dairy products, 0.054 pg WHO-TEQ/g > cereals, 0.017 pg WHO-TEQ/g > vegetables, 0.013 pg WHO-TEQ/g > fruits, 0.009 pg WHO-TEQ/g. Levels were particularly high in crab (average: 0.6 pg WHO-TEQ/g sample (1.243 pg WHO-TEQ/g sample) and large marine fish (0.6). In Taiwan, a decreasing trend of PCDD/Fs or dioxin-like PCBs (dl-PCBs) was observed in meat, dairy, eggs, and vegetables, whereas an elevated trend was observed in cereals or the levels were nearly equal in fruits and oils at alternative time shift. Dl-PCBs contributed to 60-65% toxicity equivalence levels in fish and seafood, but only to 13-40% in meat and cereal samples. The decreasing trend was consistent with the results in other countries; however, the trends in cereals, fruits, and oils were in contrast to previous results reported in other countries. Cereals and fruits are important crops in southern Taiwan, and the local pollution generated by industries or incinerators may seriously affect the distribution of PCDD/Fs and dl-PCBs. To ensure food safety, a risk assessment for residents living in different areas should be adopted for all food categories simultaneously in the future.

show abstract

Section: Resultsmentioning

confidence: 99%

Temporal trend of polychlorinated dibenzo-p-dioxin/polychlorinated dibenzofuran and dioxin like-polychlorinated biphenyl concentrations in food from Taiwan markets during 2004–2012

Lee

Lin

Kao

et al. 2016

Journal of Food and Drug Analysis

View full text Add to dashboard Cite

show abstract

“…The percentage of residents living for more than 15 years was the majority (89.30% in TK group and 90.75% in ST group) (Table 1). As such, these people had settled down, had long-term exposure to AO/dioxin, and bore many health risks due to daily exposure to the surroundings of the hot spot (Hat eld Consultants and O ce of the National Steering Committee 2009), local high-risk air and food use (Sau et al 2021;Tuyet-Hanh et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Investigation on ratios of some common diseases and health risks relating to dioxin exposure in Da Nang, Vietnam

Hung

et al. 2022

Preprint

View full text Add to dashboard Cite

Analyze the current status of disease patterns and health risks of people in Thanh Khe district (TK group) residing near areas where Agent Orange (AO)/dioxin was stored in Da Nang airport compared with people in Son Tra district (ST group - control group), Da Nang city. A cross-sectional descriptive study. This is a survey of 402 families residing in the TK group and 400 ones residing in the ST group. Subjects in the age group 45–69 accounted for a high proportion, of which women accounted for the majority, the residence time was stable and long, mainly over 15 years in both groups. People in the TK group had direct and indirect exposure to AO/dioxin accounted for a higher proportion than in the ST group. The incidence of some diseases that are recommended to be related to AO/dioxin such as hypertension (33.6%), diabetes mellitus (8.96%), and other diseases: stomach (23.0%), joints (40.3%), ear-nose-throat (ENT, 11.2%), urinary system (7.21%) compared with the ST group. Exposure to AO/dioxin has changed the disease pattern and increased some diseases in people residing near areas where AO/dioxin was previously stored.

show abstract

“…Besides dioxin exposure through breast milk in their early stages, children are also exposed to dioxin through food intake. Food with high dioxin levels, such as free-range chicken meat and eggs, ducks, freshwater fish, snails, and beef, were reported in another hotspot area [31].…”

Section: Correlation Of Dioxin In Children's Blood and Mothers' Breas...mentioning

confidence: 99%

The Relationship of Dioxin Levels in Serum of 9-Year-Old Vietnamese Children and Their Mothers’ Breast Milk

Manh

Kido

Takasuga

et al. 2022

Toxics

View full text Add to dashboard Cite

In this study, we measured the concentrations of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in the blood of 9-year-old children living in a dioxin hotspot area and a nonexposed area in Vietnam. Forty-five blood samples were collected in the hotspot area while twelve pooled blood samples were collected in the nonexposed area. We found that the dioxin level of children in the hotspot was significantly higher than that of children in the nonexposed area. The total TEQ of PCDD/Fs in the hotspot and the nonexposed was 10.7 and 3.3 pg TEQ/g fat, respectively. However, TCDD, the maker of Agent Orange, was not detected in the blood of children in the hotspot area. In the hotspot area, four congeners 1,2,3,4,6,7,8-HpCDD, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, and 1,2,3,4,6,7,8-HpCDF in mothers’ breast milk showed a significantly positive correlation with those in children’s serum although the correlations of 1,2,3,7,8-PeCDD and 2,3,4,7,8-PeCDF were not significant. In addition, the duration of breastfeeding also correlates with dioxins in children. These results suggested that children in the hotspot area were exposed to dioxin through mothers’ milk and other foods or environmental factors. The present study is the first study that shows dioxin levels in Vietnamese children.

show abstract

Environmental health risk assessment of dioxin in foods at the two most severe dioxin hot spots in Vietnam

Cited by 35 publications

References 20 publications

Temporal trend of polychlorinated dibenzo-p-dioxin/polychlorinated dibenzofuran and dioxin like-polychlorinated biphenyl concentrations in food from Taiwan markets during 2004–2012

Temporal trend of polychlorinated dibenzo-p-dioxin/polychlorinated dibenzofuran and dioxin like-polychlorinated biphenyl concentrations in food from Taiwan markets during 2004–2012

Investigation on ratios of some common diseases and health risks relating to dioxin exposure in Da Nang, Vietnam

The Relationship of Dioxin Levels in Serum of 9-Year-Old Vietnamese Children and Their Mothers’ Breast Milk

Contact Info

Product

Resources

About