Emission patterns and risk assessment of polybrominated diphenyl ethers and bromophenols in water and sediments from the Beijiang River, South China

Xiong, Jukun; Li, Guiying; An, Taicheng; Zhang, Chaosheng; Wei, Chaohai

doi:10.1016/j.envpol.2016.06.021

Cited by 59 publications

(18 citation statements)

References 58 publications

(78 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…( 2)) for living organisms (Liang et al, 2019). As the ecological screening assessment of DBDPE has not yet been accurately reported by Environment Canada, and the other NBFRs were at a low detection rate or low concentration, the ecotoxicity of BDE 28, BDE47, BDE99, BDE100, BDE153, BDE183 and BDE209 (mean values > 3.5 pg L À1 , detection rates > 50%) at three trophic levels (green algae, daphnia, and fish) were investigated in each sampled river during the four seasons using the EC50/LC 50 data from Cristale et al (2013) and Xiong et al (2016) (Table S12). The results revealed that there was no PBDE-associated risk posed to surrounding organisms and ecosystems, except from BDE209.…”

Section: Ecological Risk Assessment Of Pbdes In Riversmentioning

confidence: 98%

“…V r is the runoff amount of each river (10 8 m 3 ) and the details have been listed in Table S1. The ecological risk of PBDEs in water was assessed using the risk quotient (RQ) on non-target organisms (Liang et al, 2019;Xiong et al, 2016).…”

Section: Data Analysesmentioning

confidence: 99%

“…Generally, contamination of the BRs is of a moderate to high level in comparison to global levels. For example, the PBDE concentrations in water samples from the Yellow River (406 pg L À1 e 7.89 ng L À1 ) (Pei et al, 2018), Beijiang River (<MDL e 232 pg L À1 ) (Xiong et al, 2016), Pearl River Estuary in China (344 pg L À1 e 68 ng L À1 ) (Guan et al, 2009), and San Francisco Estuary in the USA (3e513 pg L À1 ) (Oros et al, 2005), and Chenab River, Pakistan (48 pg L À1 -73.4 ng L À1 ) (Mahmood et al, 2015) were lower than those reported in the current study (12.1 pg L À1 e 238 ng L À1 ). The latter were comparable to those previously reported for the Svitava River in the Czech Republic (<MDL e 335 ng L À1 ) (Jarova et al, 2016), the Guanlan River in China (8.20 ng L À1 e 186 ng L À1 ) (Liang et al, 2019) and the River Aire in UK (17 ng L À1 e 295 ng L À1 ) (Cristale et al, 2013).…”

Section: Concentration and Composition Profiles Of Bfrsmentioning

confidence: 99%

See 2 more Smart Citations

Spatio-temporal variation of subtidal macrobenthic fauna and the ecological assessment of Longkou Artificial Island construction in Bohai Sea, China

Chen

Zhou

et al. 2019

J. Ocean. Limnol.

View full text Add to dashboard Cite

Decabromodiphenyl ether (BDE209) has been subject to restrictions since 2018 in developed countries but is still manufacturing in China. Decabromodiphenyl ethane (DBDPE) is widely used as a replacement for BDE209. To better understand the behaviors and fates of these legacy and novel brominated flame retardants (BFRs), water samples were collected from the estuaries of 36 rivers that drain into the Bohai Sea (BS) and North Yellow Sea (NYS) in 2017 and 2018. The results showed that BDE209 was still the predominant compound with a median concentration of 2470 pg L À1 , whereas DBDPE had a median concentration of 129 pg L À1 . Spatially, relatively high concentrations were observed in the rivers near Laizhou Bay (LB), which is the manufacturing hub of BFRs. BDE209 concentrations were significantly higher in dry season than in wet season, which indicates a dominant process of dilution by precipitation during the wet season. DBDPE concentration showed no significant seasonal difference. This implies that wet deposition was the major additional source of DBDPE during the wet season, and the concentration increased further during the autumn as a result of a time-lag effect. The BFR concentrations in urban rivers were lower than those reported by a study undertaken in August 2013. An increase in the BFR concentrations in rural rivers since 2013 suggested increases in the use and non-point source emissions of BFRs in some remote aquatic environments. The estimated annual inputs of BDE209 and DBDPE into the BS were ~95.9 kg yr À1 and ~26.8 kg yr À1 , respectively, whereas those into the NYS were ~24.1 kg yr À1 and ~8.38 kg yr À1 . The results revealed an ecological risk of BDE209 in winter especially in the Xiaoqing River, thus suggesting the impact of BDE209 on the aquatic environment and human health.

show abstract

Section: Ecological Risk Assessment Of Pbdes In Riversmentioning

confidence: 98%

Section: Data Analysesmentioning

confidence: 99%

Section: Concentration and Composition Profiles Of Bfrsmentioning

confidence: 99%

See 1 more Smart Citation

Spatio-temporal variation of subtidal macrobenthic fauna and the ecological assessment of Longkou Artificial Island construction in Bohai Sea, China

Chen

Zhou

et al. 2019

J. Ocean. Limnol.

View full text Add to dashboard Cite

show abstract

“…HFRs, which have a high octanol-water partition coefficient (K ow ), tend to bind to particulates, leading to their deposition in sediment. The occurrence of PBDEs and DPs in water and sediments has previously been investigated (Ju et al, 2016, Kim et al, 2016, Mahmood et al, 2015, Sun et al, 2013, Xiong et al, 2016. Pan et al, 2011 reported high ∑ PBDE concentrations in sediment samples from two sites in the Xiaoqing River, which empties into Laizhou Bay.…”

Section: Introductionmentioning

confidence: 99%

From headwaters to estuary: Distribution and fate of halogenated flame retardants (HFRs) in a river basin near the largest HFR manufacturing base in China

Zhen

Tang

Liu

et al. 2018

Science of The Total Environment

View full text Add to dashboard Cite

With the gradual phasing out of polybrominated diphenyl ethers (PBDEs), market demands for alternative halogenated flame retardants (HFRs) are increasing. The Laizhou Bay area is the biggest manufacturing base for brominated flame retardants (BFRs) in China, and the Xiaoqing River is the largest and most heavily contaminated river in this region. Water and sediment samples were collected from the headwaters to the estuary of the Xiaoqing River to investigate the distribution and fate of HFRs [i.e., PBDEs, alternative brominated flame retardants (aBFRs) and dechlorane plus (DPs). In the water samples, DPs was the most abundant flame retardant (median: 11.7ng/L), followed by decabromodiphenylethane (DBDPE) (5.92ng/L). In the sediment samples, DBDPE was the predominant flame retardant (39.5ng/g dw), followed by decabromodiphenyl ether (BDE 209) (2.81ng/g dw). The levels of DBDPE exceeded those of BDE 209 in most samples, indicating the overwhelming replacement of BDE 209 by DBDPE in this area. In the river section of this study, point source and atmospheric deposition followed by land runoff were the major factors influencing the distribution of HFRs, whereas in the estuary, riverine discharge, the estuarine maximum turbidity zone (MTZ), and hydrodynamic parameters played more important roles. Manufacturing is a significant source of contamination of the Xiaoqing River basin through atmospheric deposition and wastewater discharge.

show abstract

“…The environmental risks for each PBDE and their mixture were calculated based on the toxicology data, as shown in Figure 6 . The values of median effect concentration (EC50) or median lethal concentration (LC50) (toxicology data for fish, daphnia, and green algae) for PNEC calculations are provided in Table S13 , as in Xiong et al [ 49 ]. To better elucidate the risk levels, the RQs were classified into four risk levels: RQ < 0.01, non-risk; 0.01 ≤ RQ < 0.1, low risk; 0.1 ≤ RQ < 1, medium risk; 1 ≤ RQ, high risk to aquatic organisms.…”

Section: Resultsmentioning

confidence: 99%

Polybrominated Diphenyl Ethers (PBDEs) in a Large, Highly Polluted Freshwater Lake, China: Occurrence, Fate, and Risk Assessment

Liu

Zhang

et al. 2018

IJERPH

View full text Add to dashboard Cite

Polybrominated diphenyl ethers (PBDEs) were extensively investigated in water, sediment, and biota samples collected from Chaohu Lake basin in China. The total concentrations of eight PBDEs (Σ8PBDEs) were in the ranges of 0.11–4.48 ng/L, 0.06–5.41 ng/g, and 0.02–1.50 ng/g dry weight (dw) in the water, sediment, and biota samples, respectively. The concentrations showed wide variations in the monitoring area, while the congener profiles in all the water, sediment, and biota samples were generally characterized by only a few compounds, such as BDE-47, BDE-99, and/or BDE-209. The spatial analysis depicted a decreasing trend of PBDEs from west to east Chaohu Lake, consistent with regional industrialization degree. The distributions of PBDE congeners in the biota samples were similar to the compositional profiles in the water, which were dominated by BDE-47 and/or BDE-99. Nevertheless, BDE-47 and BDE-153 in the brain tissue showed a higher accumulative potential than PBDEs in other tissues as well as the whole body, with 96% relative contribution of Σ8PBDEs. The noncarcinogenic risk values estimated for BDE-47, BDE-99, and BDE-153 indicated that the specific risk associated with the studied water and foodstuffs is limited. However, there is a potential mixture ecotoxicity at three trophic levels at some sampling points in the water, which should draw considerable attention.

show abstract

Emission patterns and risk assessment of polybrominated diphenyl ethers and bromophenols in water and sediments from the Beijiang River, South China

Cited by 59 publications

References 58 publications

Spatio-temporal variation of subtidal macrobenthic fauna and the ecological assessment of Longkou Artificial Island construction in Bohai Sea, China

Spatio-temporal variation of subtidal macrobenthic fauna and the ecological assessment of Longkou Artificial Island construction in Bohai Sea, China

From headwaters to estuary: Distribution and fate of halogenated flame retardants (HFRs) in a river basin near the largest HFR manufacturing base in China

Polybrominated Diphenyl Ethers (PBDEs) in a Large, Highly Polluted Freshwater Lake, China: Occurrence, Fate, and Risk Assessment

Contact Info

Product

Resources

About