Temporal and seasonal variation and ecological risk evaluation of flame retardants in seawater and sediments from Bohai Bay near Tianjin, China during 2014 to 2017

Chen, Mengqin; Gan, Zhiwei; Qu, Bing; Chen, Sibei; Dai, Yuanyuan; Bao, Xinhe

doi:10.1016/j.marpolbul.2019.07.049

Cited by 70 publications

(17 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chromium (Cr) was observed to be high in the sediment samples wherewith 100% of the samples oscillated between the TEL and PEL standard. To add, recent studies have identified anthropogenic actions as potential contributors to Cr in coastal environments (Chen et al, 2019;Rasool et al, 2016).…”

Section: Metal(oid) Concentration In Sedimentsmentioning

confidence: 99%

“…Reports have also indicated that sediment quality differs for varying seasons (Chen et al, 2019;Zahra et al, 2014) because factors such as hydrological effects, cultural influence, lithological input and geological features may be influenced by anthropogenic activities (Zhuang et al, 2018). Several investigators have discovered that pollutants in coastal environments tend to be reduced in the wet season than in the dry season (Akindele et al, 2020).…”

Section: Metal(oid) Concentration In Sedimentsmentioning

confidence: 99%

See 1 more Smart Citation

An integrated assessment of land-use change impact, seasonal variation of pollution indices and human health risk of selected toxic elements in sediments of River Atuwara, Nigeria

Emenike

Tenebe

Neris

et al. 2020

Environmental Pollution

View full text Add to dashboard Cite

River sediments contain environmental fingerprints that provide useful ecological information. However, the geochemistry of River Atuwara sediments has received less attention over the years. One hundred and twenty-six sediments from 21 locations were collected over a two-season period from River Atuwara, and a detailed investigation of the land use and land cover (LULC) change between 1990 and 2019, analysis of selected toxic and potentially toxic metal(oid)s (TPTM) (Cu, As, Cd, Pb, Ni, Cr, Zn, Fe, Co and Al) using ICP-OES, pollution index assessment, potential source identification (using center logtransformation approach), potential ecological, and human health risk assessment were conducted. The results of the LULC change revealed that the built-up area increased by 95.58 km 2 , at an average rate of 3.186 km 2 /year over the past 30 years. The mean concentration of metal(oid)s increased in the order of Cd < As < Cr < Pb < Co < Ni < Cu < Zn < Fe < Al, and Cd < As < Cr < Co < Pb < Ni < Cu < Zn < Fe < Al during the dry and wet seasons, respectively. Meanwhile, the statistical analysis of the data spectrum inferred possible contamination from lithological and anthropogenic sources. According to the pollution load index, 90.48% of the sediment samples are polluted by the metal(oid)s. Potential ecological risk assessment identified Ni, As, and Cd as problematic to the ecological community of River Atuwara. Regarding the metal-specific hazard quotient via ingestion route, the risks are in order of Co [ As [ Pb > Cr > Cd > Al > Ni > Cu > Zn > Fe for both seasons and the carcinogenic risk for children via ingestion route presented a value higher than the safe limits for As, Cd, Cr, and Ni during both seasons. This outcome highlights the need for prompt action towards the restoration of environmental quality for communities surrounding River Atuwara.

show abstract

Section: Metal(oid) Concentration In Sedimentsmentioning

confidence: 99%

Section: Metal(oid) Concentration In Sedimentsmentioning

confidence: 99%

An integrated assessment of land-use change impact, seasonal variation of pollution indices and human health risk of selected toxic elements in sediments of River Atuwara, Nigeria

Emenike

Tenebe

Neris

et al. 2020

Environmental Pollution

View full text Add to dashboard Cite

show abstract

“…Meanwhile, DBDPE has also been produced in large quantities, especially in the Laizhou Bay (LB) area, owing to the market demand of developed countries to replace deca-BDE. In China, DBDPE concentrations in many environmental components (e.g., air, seawater, and sediment) have been found to exceed those of BDE209 (Chen et al, 2019;Yu et al, 2016;Zhen et al, 2018). Previous study in the Bohai Sea (BS) reported that DBDPE was the dominant compound in both air and seawater samples with the exception of August 2017, when BDE209 concentrations were obviously higher than those of DBDPE in surface seawater (Liu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The BS is a semi-closed water body with a narrow strait to the Yellow Sea, and includes three bays: Liaodong Bay (LDB), Bohai Bay (BB), and LB. Extremely high concentrations of BFRs have been detected in the inland region around the BS and in coastal waters as a result of emissions from manufacturing and consumption (Chen et al, 2019(Chen et al, , 2020Shao et al, 2016;Wang et al, 2017). The Bohai Rim (BR) is surrounded by Tianjin City and Shandong, Hebei, and Liaoning provinces, which have experienced rapid industrialization, urbanization, and economic development in recent decades (He et al, 2018;Zhao et al, 2011;Zheng et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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

“…In 2007, the total OPFR consumption was approximately 85,000 t in Europe and 70,000 t in China, with an annual growth rate of 15% [ 4 , 5 ]. Moreover, OPFRs were detected in different environmental matrices, such as indoor dust, air, water, soil, and sediments [ 6 , 7 , 8 , 9 , 10 ]. Their long-distance mobility caused detectable OPFR pollution in Canada’s Arctic region and the central Arctic Ocean region [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Occurrence, Distribution, and Risk of Organophosphate Flame Retardants in Sediments from Jiulong River Estuary and Adjacent Western Taiwan Strait, China

Cai

Shi

Pan

et al. 2022

IJERPH

View full text Add to dashboard Cite

Organophosphate ester flame retardants (OPFRs) are widely prevalent in the environment and are of significant concern because of their potential toxicity to human health and wildlife. In this study, the concentration, frequency, spatial distribution, potential sources, and ecological risks of OPFRs in sediments from the Jiulong River estuary and the adjacent western Taiwan Strait were investigated. Concentrations of four of the five studied OPFRs were between <LOD and 36.6 ng/g. The distribution of all OPFRs, except 2-Ethylhexyl diphenyl phosphate (EHDPP), remained highly consistent with hydrological (salinity) trends. Furthermore, a significantly positive correlation between EHDPP and total concentrations suggested that it may be the dominant contaminant at both sites. Principal element analysis indicated multiple sources of OPFRs, which were categorized as emissions from road runoff and surface traffic, effects of atmospheric deposition and hydrologic conditions, and a combination of industrial and population effects. Ecological risk indicates that tris (chloroethyl) phosphate (TCEP) and triphosphate ester (2,3-dibromopropyl) (TDBPP) have almost no risk, tris (clorisopropyl) phosphate (TCPP) generally has low risk, while EHDPP has moderate risk with the highest value of 0.487 in the sediments from both sites. Meanwhile, TCPP and TCEP exhibit lower theoretical health risks but are still not negligible. Overall, this work provides data to support global pollutant studies and facilitate the implementation of pollutant control strategies.

show abstract

Temporal and seasonal variation and ecological risk evaluation of flame retardants in seawater and sediments from Bohai Bay near Tianjin, China during 2014 to 2017

Cited by 70 publications

References 72 publications

An integrated assessment of land-use change impact, seasonal variation of pollution indices and human health risk of selected toxic elements in sediments of River Atuwara, Nigeria

An integrated assessment of land-use change impact, seasonal variation of pollution indices and human health risk of selected toxic elements in sediments of River Atuwara, Nigeria

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

Occurrence, Distribution, and Risk of Organophosphate Flame Retardants in Sediments from Jiulong River Estuary and Adjacent Western Taiwan Strait, China

Contact Info

Product

Resources

About