Spatial distribution of benthic toxicity and sediment-bound metals and arsenic in Guangzhou urban waterways: Influence of land use

Spatial distribution of benthic toxicity and sediment-bound metals and arsenic in Guangzhou urban waterways: Influence of land use

The effects of land use on pollutant loads in sediments have been well documented; however, its influence on spatial variations in sediment toxicity remains largely unknown. In the present study, the toxicological effects of 17 sediments collected from Guangzhou waterways were evaluated using two be...

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Veröffentlicht in:Journal of hazardous materials 2022-10, Vol.439, p.129634-129634, Article 129634
Hauptverfasser: Xiao, Xiangxiang, Tong, Yujun, Wang, Dali, Gong, Yongting, Zhou, Zhimin, Liu, Yuan, Huang, Hongjie, Zhang, Baixin, Li, Huizhen, You, Jing
Format: Artikel
Sprache:eng
Schlagworte:
Heavy metals
Integrated biomarker responses
Multivariate analysis
Sediment
Toxicity
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Zusammenfassung:The effects of land use on pollutant loads in sediments have been well documented; however, its influence on spatial variations in sediment toxicity remains largely unknown. In the present study, the toxicological effects of 17 sediments collected from Guangzhou waterways were evaluated using two benthic invertebrates (Chironomus dilutus and Hyalella azteca), along with quantification of heavy metals and arsenic in the sediments. The impacts of land-use configuration on sediment toxicity and occurrence of heavy metals and arsenic were analyzed. The sediments presented moderate lethality (
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2022.129634