title: Effect of surfactant amendment to PAHs-contaminated soil for phytoremediation by maize (Zea mays L.).
abstract: Understanding the uptake of organic pollutants by plants is an important part of the assessment of risks from crops grown on contaminated soils. This study was an investigation of the effects of surfactants added to PAHs-contaminated soil on the uptake and accumulation of PAHs in maize tissues during phytoremediation. The accumulation of phenanthrene (PHE) and pyrene (PYR) by maize plant was not influenced significantly by the surfactant amendment to the soil. The distribution of PHE and PYR in maize tissues was not positively correlated with the corresponding lipid contents. Remarkably, the concentrations 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 some foods. Moreover, surfactants could enhance the removal of pollutants from contaminated soil during phytoremediation, which might be due to surfactant desorption ability and microbial activity in soil. The study suggests that use of maize plant with surfactant is an alternative technology for remediation of PAHs-contaminated soils.
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
authors.forename: Changjun
authors.initials: C
authors.lastname: Liao
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
authors.forename: Xujun
authors.initials: X
authors.lastname: Liang
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Ministry of Education Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, South China University of Technology, Guangzhou 510006, PR China. Electronic address: lutao@scut.edu.cn.
authors.forename: Guining
authors.initials: G
authors.lastname: Lu
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
authors.forename: Truonggiang
authors.initials: T
authors.lastname: Thai
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
authors.forename: Wending
authors.initials: W
authors.lastname: Xu
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China. Electronic address: chzdang@scut.edu.cn.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Dang
mesh_terms: D001673:Biodegradation, Environmental; D002523:Edible Grain / Q000187:drug effects / Q000378:metabolism; D006017:Glycolipids / Q000494:pharmacology; D017830:Octoxynol / Q000494:pharmacology; D010616:Phenanthrenes / Q000633:toxicity*; D011721:Pyrenes / Q000633:toxicity*; D012503:Saponins / Q000494:pharmacology; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000633:toxicity*; D013501:Surface-Active Agents / Q000494:pharmacology*; D014018:Tissue Distribution; D003313:Zea mays / Q000187:drug effects* / Q000254:growth & development
chemical_list: D006017:Glycolipids; D010616:Phenanthrenes; D011721:Pyrenes; D012503:Saponins; D012989:Soil Pollutants; D013501:Surface-Active Agents; C418382:rhamnolipid; C031181:phenanthrene; D017830:Octoxynol; C030984:pyrene
keywords: Bioaccumulation; Maize; Phenanthrene; Pyrene; Surfactant