title: Biochar reduces the bioavailability of di-(2-ethylhexyl) phthalate in soil.
abstract: A pot experiment was conducted to evaluate the effect of biochars on the bioavailability of di-(2-ethylhexyl) phthalate (DEHP) in two soils using Brassica chinensis L. as an indicator plant. The residual concentrations of DEHP tended to be higher in the biochar-amended soils than in the control soils. They were lower (p<0.05) in the high organic carbon content soil (HOC; 2.2%C) than in the low organic carbon content soil (LOC; 0.35%C). The DEHP concentrations in plant shoots grown in the HOC soils were lower than those in the LOC soils (p<0.05). Compared to the control, the biochar addition decreased the DEHP concentrations in shoots grown in the LOC soils; whereas there was no significant difference in the HOC soils. Our results showed that soil OC content as well as biochar properties are the key factors influencing the bioavailability of DEHP in soils.
authors.affiliation: Zhejiang Provincial Key Laboratory of Soil Contamination Bioremediation, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China.
authors.forename: Lizhi
authors.initials: L
authors.lastname: He
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China.
authors.forename: Shiliang
authors.initials: S
authors.lastname: Fan
authors.affiliation: The New Zealand Institute for Plant and Food Research Limited, Ruakura Research Centre, Private Bag 3123, Hamilton, New Zealand.
authors.forename: Karin
authors.initials: K
authors.lastname: Müller
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China.
authors.forename: Guotao
authors.initials: G
authors.lastname: Hu
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; Yancao Production Technology Center, Bijie Yancao Company of Guizhou Province, Bijie 551700, China. Electronic address: hhg491124@163.com.
authors.forename: Huagang
authors.initials: H
authors.lastname: Huang
authors.affiliation: School of Environmental and Resource Sciences, Zhejiang A & F University, Lin'an, Zhejiang 311300, China.
authors.forename: Xiaokai
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan City, Guangdong 523169, China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Lin
authors.affiliation: School of Engineering, Huzhou University, Huzhou, Zhejiang 313000, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Che
authors.affiliation: Zhejiang Provincial Key Laboratory of Soil Contamination Bioremediation, Zhejiang A & F University, Lin'an, Zhejiang 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan City, Guangdong 523169, China. Electronic address: nzhailongwang@gmail.com.
authors.forename: Hailong
authors.initials: H
authors.lastname: Wang
mesh_terms: D001682:Biological Availability; D001937:Brassica / Q000187:drug effects / Q000254:growth & development; D002606:Charcoal / Q000737:chemistry*; D010795:Phthalic Acids / Q000032:analysis* / Q000633:toxicity; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis* / Q000633:toxicity
chemical_list: D010795:Phthalic Acids; D012987:Soil; D012989:Soil Pollutants; C540010:biochar; D002606:Charcoal; C032279:phthalic acid
keywords: Bioavailability; Biochar; Di-(2-ethylhexyl) phthalate (DEHP); Organic pollutant; Soil organic carbon