Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Polybrominated diphenyl ethers in soils of the modern Yellow River Delta, China
T2 - occurrence, distribution and inventory
AU - Chen, Chang'er
AU - Zhao, Hongxia
AU - Chen, Jingwen
AU - Qiao, Xianliang
AU - Xie, Qing
AU - Zhang, Yifei
PY - 2012/8
Y1 - 2012/8
N2 - The Yellow River is the second largest river in China. In this study, the levels of polybrominated diphenyl ethers (PBDEs) in the modern Yellow River Delta (mYRD) were firstly reported. Twenty PBDE congeners in soil/sediment samples from mYRD were measured. The total PBDE concentrations ranged from non-detectable to 18 257 ng kg(-1) with a mean value of 836 ng kg(-1). BDE-209 was the dominant congener, accounting for similar to 86.1-99.5% of the total PBDEs. The congener profiles of PBDEs with higher abundances of BDE-153 and BDE-183 were similar to those in sediment of the Bohai Sea, indicating that they shared similar sources. The concentrations and congener patterns varied among different regions. Higher levels of PBDEs were found in the middle area (MA), and more complicated congener compositions were also observed in the MA, whereas lower levels of PBDEs were found in the modern course (MC) and the old course (OC). Much more PBDEs were detected in the top layer (TL) soil where more congeners were also held compared to lower soil layers, implying that more PBDEs were emitted into this area in recent years/decades. Organic matter controlled the PBDE distribution in the soil. Soil in this area might be a source of BDE209 for the Bohai Sea. (C) 2012 Elsevier Ltd. All rights reserved.
AB - The Yellow River is the second largest river in China. In this study, the levels of polybrominated diphenyl ethers (PBDEs) in the modern Yellow River Delta (mYRD) were firstly reported. Twenty PBDE congeners in soil/sediment samples from mYRD were measured. The total PBDE concentrations ranged from non-detectable to 18 257 ng kg(-1) with a mean value of 836 ng kg(-1). BDE-209 was the dominant congener, accounting for similar to 86.1-99.5% of the total PBDEs. The congener profiles of PBDEs with higher abundances of BDE-153 and BDE-183 were similar to those in sediment of the Bohai Sea, indicating that they shared similar sources. The concentrations and congener patterns varied among different regions. Higher levels of PBDEs were found in the middle area (MA), and more complicated congener compositions were also observed in the MA, whereas lower levels of PBDEs were found in the modern course (MC) and the old course (OC). Much more PBDEs were detected in the top layer (TL) soil where more congeners were also held compared to lower soil layers, implying that more PBDEs were emitted into this area in recent years/decades. Organic matter controlled the PBDE distribution in the soil. Soil in this area might be a source of BDE209 for the Bohai Sea. (C) 2012 Elsevier Ltd. All rights reserved.
KW - Polybrominated diphenyl ethers
KW - Spatial distribution
KW - Soil
KW - Modern Yellow River Delta
KW - BROMINATED FLAME RETARDANTS
KW - SOUTH CHINA
KW - POLYCHLORINATED-BIPHENYLS
KW - YANGTZE-RIVER
KW - FOOD-WEB
KW - DECABROMODIPHENYL ETHER
KW - SURFACE SEDIMENTS
KW - NORTH CHINA
KW - PBDES
KW - ENVIRONMENT
U2 - 10.1016/j.chemosphere.2012.03.084
DO - 10.1016/j.chemosphere.2012.03.084
M3 - Journal article
VL - 88
SP - 791
EP - 797
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
IS - 7
ER -