Residues of persistent toxic substances in surface soils of Ny-Ålesund in the arctic: Occurrence, source, and ecological risk assessment. (September 2022)

• Record Type: Journal Article
• Authors: Han, Bin; Gao, Wei; Li, Qian; Liu, Ang; Gong, Jinwen; Zheng, Yunchao; Wang, Nengfei; Zheng, Li
• Is Part Of: Chemosphere. Volume 303:Part 2(2022)
• Publication Date: 2022-09
• Subjects: Persistent toxic substances -- PAHs -- Assessment -- Soil -- Ny-Ålesund; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2022.135092
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: In this paper, the characteristics of persistent toxic substances (PTSs) in soil of Ny-Ålesund in the Arctic during the 10th Chinese Arctic (Arctic Ocean) scientific investigation were quantitatively analyzed. The sources and toxicity risks of polycyclic aromatic hydrocarbons (PAHs) in the soil was also analyzed. No obvious spatial distribution of PAHs was identified in the study area. LMW-PAHs are the main PAHs in this region, mainly tricyclic PAHs. The results of characteristic ratio method and PCA showed that the PAHs in soil mainly came from petroleum source and petroleum combustion source, and incomplete combustion of coal and wood, and atmospheric transport contributed to some extent. Ecological risk assessment results showed that the PAHs in soil did not bring toxicity risk, and the possibility of ecological risk was very low in Ny-Ålesund in the Arctic. Graphical abstract: Image 1 Highlights: Distribution characteristics of PTSs in soils of Ny-Ålesund in the Arctic. Sources apportionment and Ecological risk assessment for PTSs in soils. Risk levels of PTs and recommendations for prevention and control.