Distribution characteristics and ecological evaluation of chlorobenzene compounds in surface sediment of the Maowei Sea, Guangxi, China
| Autor: | Liang Tang, Bin Yang, Weitao Li, Liang Wang, Riquan Liao, Zhenjun Kang |
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| Rok vydání: | 2019 |
| Předmět: |
China
Geologic Sediments 010504 meteorology & atmospheric sciences Oceans and Seas 010501 environmental sciences Management Monitoring Policy and Law Chlorobenzenes 01 natural sciences Gas Chromatography-Mass Spectrometry chemistry.chemical_compound Hexachlorobenzene Ecotoxicology Organic Chemicals 0105 earth and related environmental sciences General Environmental Science Total organic carbon East coast Ecology Sediment General Medicine Pollution chemistry Chlorobenzene Environmental chemistry Environmental science Water Pollutants Chemical Environmental Monitoring Toluene |
| Zdroj: | Environmental Monitoring and Assessment. 191 |
| ISSN: | 1573-2959 0167-6369 |
| Popis: | 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−1 (the concentration range, 2.5–61.5 ng·g−1). 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−1 (the concentration range, 4.87–20.13 g·kg−1). 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. |
| Databáze: | OpenAIRE |
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