菜心吸收和积累土壤中5种多环芳烃规律
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摘要
采用萘(Nap)、菲(Phe)、荧蒽(Flt)、苯并(a)芘(BaP)和茚并(1,2,3-cd)芘(InP)5种不同苯环数的多环芳烃(PAHs)混合溶液施入土壤,制成不同浓度PAHs污染土壤盆栽种植菜心,研究菜心对土壤中不同种类PAHs的吸收和积累规律。结果表明,菜心根部、茎部、叶片中的PAHs含量随着PAHs处理浓度的增加而升高;菜心植株内不同部位的PAHs含量表现为:根部>叶片>茎部;菜心叶片中的PAHs含量在定植后17 d内快速上升,17～24 d上升速度明显减慢,定植后24 d低浓度处理和CK叶片中的PAHs含量出现下降趋势。菜心植株中低环类PAHs(2～3个苯环)的含量占PAHs总量的77.61%～90.3%,高环类PAHs(4～6个苯环)的含量占PAHs总量的9.70%～22.39%。菜心植株对土壤中5种PAHs的富集能力大小为Phe>Nap>Flt>BaP>InP,菜心根部对BaP和InP的富集能力远大于茎部和叶片。
引文
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[22]Wild E,Dent J,Thomas G O,et al.Visualizing the air-to-leaf transfer and within-leaf movement and distribution of phenanthrene:further studies utilizing two-photon excitation microscopy[J].Environmental Science&Technology,2006,40(3):907-916.
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[2]李云辉,莫测辉.不同施肥条件对菜心中PAHs含量的影响[J].广东农业科学,2008(2):47-49.
[3]张天彬,万洪富,杨国义,等.珠江三角洲典型城市农业土壤及蔬菜中的多环芳烃分布[J].环境科学学报,2008,28(11):2375-2384.
[4]尹春芹,蒋新,杨兴伦,等.多环芳烃在土壤-蔬菜界面上的迁移与积累特征[J].环境科学,2008,29(11):3240-3245.
[5]高彦征,朱利中,凌婉婷,等.土壤和植物样品的多环芳烃分析方法研究[J].农业环境科学学报,2005,24(5):173-176.
[6]Moon H S,Kahng H Y,Kim J Y,et al.Determination of biodegradation potential by two culture-independent methods in PAH-contaminated soils[J].Environmental Pollution,2006,140(3):536-545.
[7]万开,江明,杨国义,等.珠江三角洲典型城市蔬菜中多环芳烃分布特征[J].土壤,2009,41(4):583-587.
[8]Boll E S,Christensen J H,Holm P E.Quantification and source identification of polycyclic aromatic hydrocarbons in sediment,soil,and water spinach from Hanoi,Vietnam[J].Journal of Environmental Monitoring,2008,10(2):261-269.
[9]Gao Y Z,Zhu L Z.Plant uptake,accumulation and translocation of phenanthrene and pyrene in soils[J].Chemosphere,2004,55(9):1169-1178.
[10]Fismes J,Perrin-Ganier C,Empereur-Bissonnet P,et al.Soilto-root transfer and translocation of polycyclic aromatic hydrocarbons by vegetables grown on industrial contaminated soils[J].Journal of Environmental Quality,2002,31(5):1649-1656.
[11]Wang Y C,Qiao M,Liu Y X,et al.Comparison of polycyclic aromatic hydrocarbon uptake pathways and risk assessment of vegetables from waste-water irrigated areas in northern China[J].Journal of Environmental Monitoring,2011,13(2):433-439.
[12]Lu H X,Cai Q Y,Jones K C,et al.Levels of organic pollutants in vegetables and human exposure through diet:a review[J].Critical Reviews in Environmental Science and Technology,2014,44(1):1-33.
[13]杨海燕,郭金鹏,卢少勇,等.水葫芦多环芳烃含量及其与脂肪含量的关系[J].环境工程学报,2016,10(1):467-472.
[14]凌婉婷,朱利中,高彦征,等.植物根对土壤中PAHs的吸收及预测[J].生态学报,2005,25(9):2320-2325.
[15]谢峰,严重玲,卢豪良,等.菲与芘在砂基培养的红树植物秋茄中的分布与可视化定位[J].台湾海峡,2012,31(4):489-494.
[16]沈菲,朱利中.钢铁工业区附近农田蔬菜PAHs的浓度水平及分布[J].环境科学,2007,28(3):669-672.
[17]Brady C A,Gill R A,Lynch P T.Preliminary evidence for the metabolism of benzo(a)pyrene by Plantago lanceolata[J].Environmental Geochemistry and Health,2003,25(1):131-137.
[18]Gao Y Z,Zhang Y,Liu J,et al.Metabolism and subcellular distribution of anthracene in tall fescue(Festuca arundinacea Schreb.)[J].Plant and Soil,2013,365(1/2):171-182.
[19]Kang F,Chen D,Gao Y,et al.Distribution of polycyclic aromatic hydrocarbons in subcellular root tissues of ryegrass(Lolium multiflorum Lam.)[J].BMC Plant Biology,2010,10(1):210-216.
[20]尹春芹,蒋新,杨兴伦,等.多环芳烃在土壤-蔬菜界面上的迁移与积累特征[J].环境科学,2008,29(11):3240-3245.
[21]熊冠男,张云惠,段永红,等.山西晋中焦化基地多环芳烃排放对周边大田卷心菜的影响[J].生态毒理学报,2016,11(2):473-483.
[22]Wild E,Dent J,Thomas G O,et al.Visualizing the air-to-leaf transfer and within-leaf movement and distribution of phenanthrene:further studies utilizing two-photon excitation microscopy[J].Environmental Science&Technology,2006,40(3):907-916.
[23]陈静,王学军,陶澍,等.天津地区土壤多环芳烃在剖面中的纵向分布特征[J].环境科学学报,2004,24(2):286-290.
[24]丁爱芳,潘根兴,李恋卿.南京和宜兴市土壤中多环芳烃(PAHs)的纵向分布[J].环境科学与技术,2010,33(6):115-118.
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