Polybrominated diphenyl ethers in the environmental systems: a review

Ohoro, Chinemerem Ruth; Adeniji, Abiodun Olagoke; Okoh, Anthony I.; Okoh, Omobola O.

doi:10.1007/s40201-021-00656-3

Cited by 41 publications

(9 citation statements)

References 229 publications

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“…This variance could be a result of the absence of microbial degradation as BDE-17 is one of the major products of microbial degradation of high molecular weight PBDEs in the environment [53]. Point NH5 is a rocky steep under the bridge and occupied by some homeless individuals and characterized by vehicular emission and careless garbage dump by the road users [54,55]. The anthropogenic waste could be why there was a higher concentration at this spot [56] than at NH3 and NH4, which are closer to the potential most polluted area of this sampling site.…”

Section: Spatial Distribution Seasonal Variation and Potential Sources Of Pollutionmentioning

confidence: 99%

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

et al. 2022

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The concentrations, potential sources, and compositional profile of PBDEs in the surface water and sediment of Nahoon Estuary, East London, South Africa, were investigated with solid-phase extraction and ultra-sonication, respectively, followed by gas-chromatography-electron capture detection. The seasonal range of the contaminants’ concentrations in water and sediment samples in spring season were ∑PBDE 329 ± 48.3 ng/L (25.32–785 ng/L) and ∑PBDE 4.19 ± 0.35 ng/g dw (1.91–6.57 ng/g), but ∑PBDE 62.1 ± 1.50 ng/L (30.1–110 ng/L) and ∑PBDE 65.4 ± 15.9 ng/g dw (1.98–235 ng/g) in summer, respectively. NH1 (first sampling point) was the most contaminated site with PBDE in the Estuary. The potential source of pollution is attributed to the stormwater runoff from a creek emptying directly into the Estuary. This study’s dominant PBDE congener is BDE-17, ranging from below detection limit to 247 ng/L and 0.14–32.1 ng/g in water and sediment samples, respectively. Most detected at all the sites were BDE-17, 47, 66, and 100. Most BDE-153 and 183 are found in sediment in agreement with the fact that higher brominated congeners of PBDE adsorb to solid materials. There was no correlation between the congeners and organic carbon and organic matter. However, the human health risk assessment conducted revealed that the PBDE concentration detected in the estuary poses a low eco-toxicological risk. Nevertheless, constant monitoring should be ensured to see that the river remains safe for the users, as it serves as a form of recreation to the public and a catchment to some neighbourhoods.

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Section: Spatial Distribution Seasonal Variation and Potential Sources Of Pollutionmentioning

confidence: 99%

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

et al. 2022

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“…This variance could be as a result absence of microbial degradation as BDE-17 is a one of the major products of microbial degradation of high molecular weight PBDEs in the environment (Trinh et al, 2019). Point NH5 is a rocky steep under the bridge and occupied by some homeless individuals and characterized by vehicular emission and careless garbage dump by the road users (Anh et al, 2018;Ohoro et al, 2021). The anthropogenic waste could be why there was a higher concentration at this spot (Zhou et al, 2021) than at NH3 and NH4, which are closer to the potential most polluted area of this sampling site.…”

Section: Hq = C/pnec (3)mentioning

confidence: 99%

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

Ohoro

Adeniji

Semerjian

et al. 2021

Preprint

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The concentrations, potential sources, and compositional profile of PBDEs in the surface water and sediment of Nahoon Estuary, East London, South Africa, were investigated with solid-phase extraction and ultra-sonication, respectively, followed by gas-chromatography-electron capture detection. The seasonal range of the contaminants’ concentrations in water and sediment samples in spring season were ƩPBDE 329 ± 48.3 ng/L (25.32–785 ng/L) and ƩPBDE 4.19 ± 0.35 ng/g dw (1.91–6.57 ng/g), but ƩPBDE 62.1 ± 1.50 ng/L (30.1–110 ng/L) and ƩPBDE 65.4 ± 15.9 ng/g dw (1.98–235 ng/g) in summer, respectively. NH1 (first sampling point) was the most contaminated site with PBDE in the Estuary. The potential source of pollution is attributed to the stormwater runoff from a creek emptying directly into the Estuary. This study's dominant PBDE congener is BDE- 17, ranging from below detection limit to 247 ng/L and 0.14–32.1 ng/g in water and sediment samples, respectively. Most commonly detected at all the sites were BDE- 17, 47, 66, and 100. Most BDE- 153 and 183 are found in sediment in agreement with the fact that higher brominated congeners of PBDE adsorb to solid materials. There was no correlation between the congeners and organic carbon and organic matter. However, the human health risk assessment conducted revealed that the PBDE concentration detected in the estuary pose low eco-toxicological risk. Nevertheless, constant monitoring should be ensured to see that the river remains safe for all the users, as it serves as a form of recreation to the public and a catchment to some neighbourhoods around the river.

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“…1 Synthetically produced PBDEs are widespread environmental contaminants, which are transformed by biological and nonbiological ways, and are distributed in soil, groundwater, and atmosphere. [2][3][4][5] PBDEs, together with their hydroxylated and methoxylated analogues, have been identied ubiquitously in humans, wildlife, and marine biota. [6][7][8] Toxicology reports indicate that PBDEs cause thyroid dysfunction, 9,10 affect ovarian granulosa cell function and follicular development, 11 and interfere with the male reproductive system.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of sponge-derived polybrominated diphenyl ethers on human cancer cell α-N-acetylgalactosaminidase and bacterial α-d-galactosidase and their antioxidant activity

Utkina

Ermakova

Bakunina

2023

Environ. Sci.: Adv.

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Polybrominated diphenyl ethers in the environmental systems: a review

Cited by 41 publications

References 229 publications

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

Occurrence and Risk Assessment of Polybrominated Diphenyl Ethers in Surface Water and Sediment of Nahoon River Estuary, South Africa

Effects of sponge-derived polybrominated diphenyl ethers on human cancer cell α-N-acetylgalactosaminidase and bacterial α-d-galactosidase and their antioxidant activity

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