Distribution Characteristics and Ecological Evaluation of Chlorobenzene Compounds in Surface Sediment of the Maowei Sea, Guangxi, China

Overview

Journal Environ Monit Assess

Publisher Springer

Specialty Environmental Health

Date 2019 Apr 28

PMID 31028555

Authors

Riquan Liao

Weitao Li

Zhenjun Kang

Liang Tang

Bin Yang

Liang Wang

Affiliations

Soon will be listed here.

Abstract

To enhance our understanding on environmental conditions of the Maowei Sea in Guangxi province, China, the concentration and distribution of 22 chlorobenzene compounds (CBs) in the surface sediment were determined by gas chromatography-mass spectrometry (GC-MS). The relationship of the sediment between CBs and total organic carbon (TOC) was also investigated. The results showed that a total of eight kinds of CBs compounds were detected in the sediment samples which were collected from the coastal environment of the Maowei Sea, with an average concentration of 15.3 ng·g (the concentration range, 2.5-61.5 ng·g). The rank of their average concentrations was as follows: 2,3,4,5,6-pentachlorotoluene > hexachlorobenzene, 2-chlorotoluene, 3-chlorotoluene and 2,3-dichlorotoluene > 2,4-dichlorotoluene > 4-chlorotoluene > pentachlorobenzene. Most CBs were distributed in sediments along the east coast of the Maowei Sea. For total TOC content in sediments, the concentration in the sampling locations was similar, with a mean concentration of 8.83 g·kg (the concentration range, 4.87-20.13 g·kg). However, there was no significant correlation between the concentration of TOC and total CBs. Compared to the corresponding CBs in the sediment of other coastal areas in mainland China and other countries, the value of CBs in the Maowei Sea was low.

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