Specific biotests to assess eco-toxicity of biodegradable polymer materials in soil

查看全文 作　　者：Haiyan [1]Chen;Fei [2]Wang;Huilun [2]Chen;HongDa [3]Fang;Weiying [4,5]Feng;Yuan [1]Wei;FanFan [1]Wang;HaiLei [1]Su;YiDong [1]Mi;Min [1]Zhou;XinRu [1]Li;Serena [6]Doni;Andrea [7]Corti

机构地区：[1]State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Science,Beijing 10012,China;[2]School of Energy&Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;[3]Water Treatment Engineering Research Center of Jimei University,Fujian 361021,China;[4]School of Space and Environment,Beihang University,Beijing 100191,China;[5]Beijing Advanced Innovation Center for Big Data-Based Precision Medicine,Beihang University,Beijing 100191,China;[6]Eco-toxicology Laboratory,National Research Council(CNR)-Institute of Ecosystem Study(ISE),Via Moruzzi 1,Pisa 56124,Italy;[7]INSTM Unit,Department of Chemistry and Industrial Chemistry,University of Pisa,via Risorgimento 35,56126,Italy BIOlab,via Vecchia Livornese 1291 Loc.S.Piero a Grado(Pi),Pisa 56122,Italy

出　　处：《Journal of Environmental Sciences》索引2021年第33卷第7期,共13页

基　　金：supported by the National Natu-ral Science Foundation of China(Nos.4197071831,41630645,41573126 and 41703115);the National Special Environ-mental Protection Foundation for Technology Exploit of China(No.2014EG166135). 摘　　要：Eco-toxicity investigation of polymer materials was considered extremely necessary for their potential menace,which was widely use as mulching materials in agricultural.In this study,polyethylene(PE),polystyrene(PS)and synthetic biomaterials-Ecoflex and cellulose were applying into soil cultivated with two potential indicator plants species:oat(A v ena sati v a)and red radish(Raphanus sativum).Variety of chemical,biochemical parameters and enzyme activity in soil were proved as effective approach to evaluate polymers phytotoxicity in plant-soil mesocosm.The F-value of biomass,pH,heavy metal and electoral conductivity of Raphanus behaved significant different from T0.Significant analysis results indicated biodegradation was fast in PE than PS,besides,heavy metals were dramatically decrease in the end implied the plant absorption may help decrease heavy metal toxicity.The increase value at T2 of Dehydrogenase activity(0.84 higher than average value for Avena&0.91 higher for Raphanus),Metabolic Index(3.12 higher than average value for Avena&3.81 higher for Raphanus)means during soil enzyme activity was promoted by biodegradation for its heterotrophic organisms’energy transportation was stimulated.Statistics analysis was carried on Biplot PC1(24.2%of the total variance),PC2(23.2%of the total variance),versus PC3(22.8%of the total variance),which indicated phosphatase activity and metabolic index was significant correlated,and high correlation of ammonium and protease activity.Furthermore,the effects were more evident in Raphanus treatments than in Avena,suggesting the higher sensitivity of Raphanus to polymers treatment,which indicate biodegradation of polymers in Raphanus treatment has produced intermediate phytotoxic compounds. 关键词：Avena sativa Raphanus sativum Polymer materials BIODEGRADATION Eco-toxicity PHYTOTOXICITY

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Specific biotests to assess eco-toxicity of biodegradable polymer materials in soil

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