TY - JOUR
T1 - Occurrence and ecological risk assessment of emerging organic chemicals in urban rivers
T2 - Guangzhou as a case study in China
AU - Peng, Feng Jiao
AU - Pan, Chang Gui
AU - Zhang, Min
AU - Zhang, Nai Sheng
AU - Windfeld, Ronja
AU - Salvito, Daniel
AU - Selck, Henriette
AU - Van den Brink, Paul J.
AU - Ying, Guang Guo
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - Urban rivers may receive contamination from various sources including point sources like domestic sewage and nonpoint sources (e.g., runoff), resulting in contamination with various chemicals. This study investigated the occurrence of emerging organic contaminants (3 endocrine disrupting compounds (EDCs), and 17 pharmaceuticals and personal care products (PPCPs)) in six urban rivers of a representative subtropical city, Guangzhou (southern China). Our results showed that EDCs and personal care products were frequently detected in the water phase and sediment phase. 4-nonylphenol (4-NP) was the most predominant compound with the highest concentration of 5050 ng/L in the water phase and 14,400 ng/g dry weight (dw) in the sediment. Generally, higher total concentrations of EDCs and PPCPs were detected in the four urban streams compared to the main stream Zhujiang River and the Liuxi River at the suburb area. A screening-level risk assessment showed that 4-nonylphenol and triclosan (TCS) pose potential risks to aquatic organisms in most sampling sites. For individual taxa, 4-NP may pose risks to various groups of aquatic organisms, while TCS only might pose high risks to algae. Capsule Higher contamination of EDCs and PPCPs was observed in rivers in urban area; 4-nonylphenol and triclosan showed RQs > 1 in > 70% of the reported area.
AB - Urban rivers may receive contamination from various sources including point sources like domestic sewage and nonpoint sources (e.g., runoff), resulting in contamination with various chemicals. This study investigated the occurrence of emerging organic contaminants (3 endocrine disrupting compounds (EDCs), and 17 pharmaceuticals and personal care products (PPCPs)) in six urban rivers of a representative subtropical city, Guangzhou (southern China). Our results showed that EDCs and personal care products were frequently detected in the water phase and sediment phase. 4-nonylphenol (4-NP) was the most predominant compound with the highest concentration of 5050 ng/L in the water phase and 14,400 ng/g dry weight (dw) in the sediment. Generally, higher total concentrations of EDCs and PPCPs were detected in the four urban streams compared to the main stream Zhujiang River and the Liuxi River at the suburb area. A screening-level risk assessment showed that 4-nonylphenol and triclosan (TCS) pose potential risks to aquatic organisms in most sampling sites. For individual taxa, 4-NP may pose risks to various groups of aquatic organisms, while TCS only might pose high risks to algae. Capsule Higher contamination of EDCs and PPCPs was observed in rivers in urban area; 4-nonylphenol and triclosan showed RQs > 1 in > 70% of the reported area.
KW - Ecological risk assessment
KW - Endocrine disrupting compounds (EDCs)
KW - Occurrence
KW - Pharmaceuticals and personal care products (PPCPs)
KW - Urban rivers
UR - http://www.scopus.com/inward/record.url?scp=85014173379&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2017.02.200
DO - 10.1016/j.scitotenv.2017.02.200
M3 - Article
C2 - 28264771
AN - SCOPUS:85014173379
SN - 0048-9697
VL - 589
SP - 46
EP - 55
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -