Occurrence and concentrations of benzotriazole UV stabilizers in sediments from industrialized coastal regions, South Korea

Title
Occurrence and concentrations of benzotriazole UV stabilizers in sediments from industrialized coastal regions, South Korea
Author(s)
홍상희; M. Rani; 장미; 한기명; 송영경; 심원준
KIOST Author(s)
Hong, Sang Hee(홍상희)Jang, Mi(장미)Han, Gi Myung(한기명)Song, Young Kyoung(송영경)Shim, Won Joon(심원준)
Alternative Author(s)
홍상희; 장미; 한기명; 송영경; 심원준
Publication Year
2015-05-07
Abstract
Benzotriazole UV stabilizers (BUVSs) are a class of plastic additives that are used in polypropylene and ABS (Acrylonitril, Butadiene and Styrene) copolymer products, which in turn are employed in building, automobile and consumer materials. Among several BUVSs, 2-(3-t-butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole (UV-326), 2,4-di-t-butyl-6-(5-chloro-2Hbenzotriazole-2-yl) phenol (UV-327), 2-(2H-benzotriazole-2yl)-4,6-di-t-pentylphenol (UV-328) are commonly used and toxic to animals (alterations in sex hormones, developmental effects etc.). The 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-phenol (UV-320) is prohibited from production, usage and import, because of its potential for bioaccumulation and toxicities to liver and other tissues in laboratory mammals. However, environmental data on these compounds are still very limited. Therefore, level and distribution of these BUVs were investigated in sediments (n=84) from two highly industrialized coastal regions in South Korea i.e. Ulsan (n=47) and Busan (n=37) with different characteristics (i.e., population and potential source in the catchment). Their frequent detection ranged from n.d.-174 (UV-320), n.d.-168 (UV-326), n.d.-139 (UV-327) and 0.1-168 ng/g dw (UV-328) indicated widespread use. The overall average concentration was highest for UV-320 (19.2±34 ng/g dw) followed by UV-328(14.6±26 ng/g dw), UV-327(8.9±19 ng/g dw) and UV-326(6.9±22 ng/g . Among several BUVSs, 2-(3-t-butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole (UV-326), 2,4-di-t-butyl-6-(5-chloro-2Hbenzotriazole-2-yl) phenol (UV-327), 2-(2H-benzotriazole-2yl)-4,6-di-t-pentylphenol (UV-328) are commonly used and toxic to animals (alterations in sex hormones, developmental effects etc.). The 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-phenol (UV-320) is prohibited from production, usage and import, because of its potential for bioaccumulation and toxicities to liver and other tissues in laboratory mammals. However, environmental data on these compounds are still very limited. Therefore, level and distribution of these BUVs were investigated in sediments (n=84) from two highly industrialized coastal regions in South Korea i.e. Ulsan (n=47) and Busan (n=37) with different characteristics (i.e., population and potential source in the catchment). Their frequent detection ranged from n.d.-174 (UV-320), n.d.-168 (UV-326), n.d.-139 (UV-327) and 0.1-168 ng/g dw (UV-328) indicated widespread use. The overall average concentration was highest for UV-320 (19.2±34 ng/g dw) followed by UV-328(14.6±26 ng/g dw), UV-327(8.9±19 ng/g dw) and UV-326(6.9±22 ng/g
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25589
Bibliographic Citation
SETAC Europe 25th Annual Meeting, pp.1, 2015
Publisher
SETAC
Type
Conference
Language
English
Publisher
SETAC
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse