石油污染土壤中多环芳烃组分的生态毒性风险

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关键词：总石油烃；当量多环芳烃；毒理学效应；生态受体；多功能度中图分类号：X74;X53;X171.5 文献标志码：A 文章编号：1672-2043（2025）09-2273-11 doi：10.11654/jaes.2024-0749

Abstract：Inordertoinvestigatethetoxicologicalfectsof polycyclicaromatichydrocarbons（PAHs）componentsinpetroleumcontaminatedsilosloss，thissdyseedicoogas，ae，darthosoloalers.Thoif 16 PAHs（2.47 mg* kg-1 ），low molecular weight PAHs（L-PAH， 0.40mg⋅kg-1 ），and high molecular weight PAHs（H-PAH，2.07 mg. kg-1 ） in soil contaminated with a total petroleum hydrocarbon（TPH）concentration of 13 g⋅kg-1 was assessed using flow cytometry and toxicologicalmethods.Aditionally，tepartialleast-squaremethodPLS）wasmployedtoexplorethetoxicitypathwaysofAHson diferencologalreps.ThsultssdatthulifunctioalityfslotamatedithL-AH，HAHd6Hsas 0.68，0.45，adO，espctivelyoparedwithansolsolultfuctioalityfO.54），H-Hand16sltionspiely reduced the multifunctionality of soil by 16.67% and 57.41% ，and L-PAH enhanced the multifunctionality by 25.92% . The 16 PAHs component pollution was the main reason for the decrease inmultifunctionality in 13g⋅kg-1 oil-contaminated soil.The biomarker response index（BRI）ofearthwosinsolotamnatedwith6AHs，H-PAH，andL-AHwas2.44，2.69，nd2.38，espctively.Had 16PAHsstresshadamoresignificantdamagingfectonarthwors.EachquvalentPAHcomponentsexhibitedtrongtoicfectson theactivitiesoflllidase（O），aseroidasedeas（U）nltteo PAHsonmaizegrowthwasnotsignifcant.ThePLSresultsindicatedthatPAHpollutantsafecttheactivityandsurvivalofeartoin soilbyaffctigsoilyicoicalproprtsndmicroalctivityichiuctsteuivalofarthwosintesoil.

Keywords：totalpetroleumhydrocarbon（TPH）；equivalentpolyyclicromatichydrocarbons（PAHs）；toxicologicalefect；cological receptor; multifunctionality

多环芳烃（PAHs）是一类在环境中普遍存在的有机污染物，由于其具有“三致”作用而引起研究者的广泛关注。（剩余21447字）