State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environ Sci Process Impacts. 2018 Dec 12;20(12):1649-1666. doi: 10.1039/c8em00195b.
Lake sediments are an important reservoir for toxic and hydrophobic polycyclic aromatic hydrocarbons (PAHs). Monitoring of PAHs in sediment is helpful to understand pollution mechanisms and anthropogenic activities. This study reviews studies of PAHs in lake sediments published during 2002-2018. The studies' findings are analyzed, distributions of PAHs in lake sediments are summarized, and the applicability of lake sediments for tracking changes in PAH emission sources is emphasized. Lake sediments heavily polluted with PAHs are distributed in China, Egypt, the USA, and some urban lakes in Africa. The high levels of PAHs are predominantly associated with human activities such as anthropogenic combustion, petroleum industries, road traffic, and socioeconomic factors. However, the concentrations of sedimentary PAHs in most lakes were below the international guideline values.
湖泊沉积物是有毒和疏水性多环芳烃（PAHs）的重要储存库。监测沉积物中的 PAHs 有助于了解污染机制和人为活动。本研究综述了 2002-2018 年期间发表的关于湖泊沉积物中 PAHs 的研究。分析了这些研究的结果，总结了湖泊沉积物中 PAHs 的分布，并强调了湖泊沉积物在追踪 PAH 排放源变化方面的适用性。受到 PAHs 严重污染的湖泊沉积物分布在中国、埃及、美国和非洲的一些城市湖泊中。高浓度的 PAHs 主要与人类活动有关，如人为燃烧、石油工业、道路交通和社会经济因素。然而，大多数湖泊的沉积物中 PAHs 的浓度都低于国际指导值。
