Occurrence, bioaccumulation, and trophic magnification of pharmaceutically active compounds in Taihu Lake, China. (November 2015)

• Record Type: Journal Article
• Authors: Xie, Zhengxin; Lu, Guanghua; Liu, Jianchao; Yan, Zhenhua; Ma, Binni; Zhang, Zhenghua; Chen, Wei
• Is Part Of: Chemosphere. Volume 138(2015)
• Page Start: 140
• Page End: 147
• Publication Date: 2015-11
• Subjects: Pharmaceutically active compound -- Bioaccumulation -- Biomagnification -- Food web; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2015.05.086
• Languages: English
• ISSNs: 0045-6535

Abstract

Highlights: PhACs were ubiquitous in surface water and sediments from Taihu Lake. PhACs displayed low bioaccumulation potential in aquatic organisms. Trophic magnification of PhACs in the food web of Taihu Lake was researched. TMFs for RTM, PRP and DCF were estimated in the Taihu Lake food web. Abstract: The occurrence, bioaccumulation, and trophic magnification of pharmaceutically active compounds, (PhACs) including antibiotics (roxithromycin and erythromycin), non-steroidal anti-inflammatory drugs (ibuprofen and diclofenac), a non-selective β-adrenoceptor blocker (propranolol), an antiepileptic drug (carbamazepine), and steroid estrogens (17β-estradiol and 17α-ethynylestradiol), were investigated in Taihu Lake, China. All eight PhACs were widely detected in surface water and sediment samples with maximal concentrations in the range of 8.74–118 ng L − 1 and 0.78–42.5 ng g − 1 dry weight (dw), respectively. The investigated organisms in the natural freshwater food web in Taihu Lake included phytoplankton, zooplankton, zoobenthos, and fish, and the maximal concentrations of target compounds in these biota samples ranged from 0.65 to 132 ng g − 1 dw. Bioaccumulation factors (BAFs) for all target PhACs were lower than 1000 L kg − 1, suggesting their low bioaccumulation potential in aquatic organisms from Taihu Lake. Trophic magnification factors (TMFs) were estimated at 1.11 for roxithromycin, 0.31 for propranolol, and 1.06 for diclofenac, indicating none of these PhACs underwent trophic magnification in this freshwater food web.