Distribution, source, and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Dingzi Bay, China

作者：Wang Gui, Bin Han, Yibin Wang, Jun Liu, Yunchao Zheng, Zheng Li, Lu Zheng · 发表于：Journal of Sea Research · 年份：2023 · DOI：10.1016/j.seares.2023.102387 · 被引用次数：12 · 研究领域：Toxic Organic Pollutants Impact、Effects and risks of endocrine disrupting chemicals、Environmental Toxicology and Ecotoxicology

This study dissected 21 surface sediment samples collected from the vicinity of Dingzi Bay to understand the distribution and ecological risk of PAHs. The findings revealed that the concentration of PAHs in sediments ranged from 71.38 ng·g−1 to 163.28 ng·g−1, with an average of 106.43 ng·g−1. The main components were 3-ring PAHs. By using the diagnostic ratio and principal component analysis (PCA) approach, it was determined that the main sources of PAHs in the sediments in this region were biomass, coal combustion, and oil leaks. The majority of PAHs have low ecological risk, with just Acenaphthene having slightly higher concentrations than ERL, according to the effective range low and median approaches (ERL and ERM). The examination of the toxic equivalent approach revealed that PAHs in the research area had low levels of toxicity and ecological risk.