Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 625, Issue -, Pages 1351-1360Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.01.042
Keywords
Micro pollutants; GC-MS; Indian river; Environmental compartment; LLE
Categories
Funding
- UGC-SAP
- UGC-MRP [43-313/2014(SR)]
- DST-FIST
- DST-SERB (NPDF)
- DST-PURSE
- DBT New Delhi, India
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Triclocarban and benzotriazole ultraviolet stabilizers (BUVSs) are listed as high production volume synthetic chemicals, used extensively in personal care products. Many of these chemicals persist in the aquatic environment as micropollutants. Knowledge on their fate in freshwater ecosystems is still lacking, especially in the Indian Rivers. Our intention is to study the seasonal distribution, hazard quotient, risk assessment, and bioaccumulation of triclocarban and BUVSs (UV-9, UV-P, UV-326, UV-327, UV-328, and UV-329) during wet and dry seasons in water, sediment and fish from the Kaveri, Vellar, and Thamiraparani rivers in Tamil Nadu State, India. Triclocarban and BUVSs were identified in all matrices analysed. Triclocarban was found in water, sediment, and fish up to 1119 ng/L, 26.3 ng/g (dry wt.), and 692 ng/g (wet wt.), respectively. Among BUVSs, UV-329 was found up to 31.3 ng/L (water samples), UV-327 up to 7.3 ng/g (sediment samples), and UV-9 up to 79.4 ng/g (fish samples). The hazard quotient (HQenv.) for triclocarban in surface water was found to be at risk level (HQ(env) > N1) in the Kaveri, and Thamiraparani rivers during dry season. Bioaccumulation factors indicate that target compounds (triclocarban and BUVSs) could bio-accumulate in organisms. (c) 2018 Elsevier B.V. All rights reserved.
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