【标题】Effectof surfactant amendment to PAHs-contaminated soil forphytoremediation by maize (Zea mays L.)

【期刊】Ecotoxicologyand Environmental Safety

【第一作者】廖长君

【摘要】Understandingthe uptake of organic pollutants by plants is an important part ofthe assessment of risks from crops grown on contaminated soils. Thisstudy was an investigation of the effects of surfactants added toPAHs-contaminated soil on the uptake and accumulation of PAHs inmaize tissues during phytoremediation. The accumulation ofphenanthrene (PHE) and pyrene (PYR) by maize plant was not influencedsignificantly by the surfactant amendment to the soil. Thedistribution of PHE and PYR in maize tissues was not positivelycorrelated with the corresponding lipid contents. Remarkably, theconcentrations of PHE (20.9 ng g−1)and PYR (0.9 ng g−1)in maize grain were similar to or even much lower than those in somefoods. Moreover, surfactants could enhance the removal of pollutantsfrom contaminated soil during phytoremediation, which might be due tosurfactant desorption ability and microbial activity in soil. Thestudy suggests that use of maize plant with surfactant is analternative technology for remediation of PAHs-contaminated soils.

【文章链接】https://doi.org/10.1016/j.ecoenv.2014.10.025