{"title":"Assessment of ecotoxicity of tellurium in soils of contrasting properties","authors":"Sergey Kolesnikov, Natalia Evstegneeva, Tatiana Minnikova, Alena Timoshenko, Natalia Tsepina, Kamil Kazeev","doi":"10.1016/j.emcon.2024.100334","DOIUrl":null,"url":null,"abstract":"<div><p>The ecotoxicity of tellurium (Te) compounds (oxide and nitrate) is assessed by changing the biological properties of soils of contrasting properties: Haplic Chernozem (Loamic), Eutric Cambisol, and Eutric Arenosol. Soil stability was assessed by the most sensitive and informative biological indicators: microbiological (total number of bacteria), biochemical (catalase and dehydrogenase activity), and phytotoxic (changes in the length of wheat roots and shoots). Te contamination was simulated at concentrations of 0.5, 1, 3, 10, and 30 possible permissible concentrations (PPC). It has been established that already at minimum concentrations of Te (0.5 and 1 PPC), the biological indicators of soils decrease. As a rule, a direct relationship between Te concentration and the degree of deterioration of the studied soil properties was observed. Te nitrate showed higher ecotoxicity than oxide. A stronger negative effect of Te contamination was manifested 10 and 30 days after contamination. After 90 days, the restoration of the biological properties of the soils was observed. Haplic Chernozem (Loamic) showed greater resistance to Te contamination than Haplic Cambisols Eutric and Eutric Arenosol. The obtained results can be used to predict environmental risks from soil contamination with Te and to develop maximum permissible concentrations of Te in soils of contrasting properties.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000350/pdfft?md5=b036b990c69be65f00dc8124d7177a60&pid=1-s2.0-S2405665024000350-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Emerging Contaminants","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405665024000350","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The ecotoxicity of tellurium (Te) compounds (oxide and nitrate) is assessed by changing the biological properties of soils of contrasting properties: Haplic Chernozem (Loamic), Eutric Cambisol, and Eutric Arenosol. Soil stability was assessed by the most sensitive and informative biological indicators: microbiological (total number of bacteria), biochemical (catalase and dehydrogenase activity), and phytotoxic (changes in the length of wheat roots and shoots). Te contamination was simulated at concentrations of 0.5, 1, 3, 10, and 30 possible permissible concentrations (PPC). It has been established that already at minimum concentrations of Te (0.5 and 1 PPC), the biological indicators of soils decrease. As a rule, a direct relationship between Te concentration and the degree of deterioration of the studied soil properties was observed. Te nitrate showed higher ecotoxicity than oxide. A stronger negative effect of Te contamination was manifested 10 and 30 days after contamination. After 90 days, the restoration of the biological properties of the soils was observed. Haplic Chernozem (Loamic) showed greater resistance to Te contamination than Haplic Cambisols Eutric and Eutric Arenosol. The obtained results can be used to predict environmental risks from soil contamination with Te and to develop maximum permissible concentrations of Te in soils of contrasting properties.
期刊介绍:
Emerging Contaminants is an outlet for world-leading research addressing problems associated with environmental contamination caused by emerging contaminants and their solutions. Emerging contaminants are defined as chemicals that are not currently (or have been only recently) regulated and about which there exist concerns regarding their impact on human or ecological health. Examples of emerging contaminants include disinfection by-products, pharmaceutical and personal care products, persistent organic chemicals, and mercury etc. as well as their degradation products. We encourage papers addressing science that facilitates greater understanding of the nature, extent, and impacts of the presence of emerging contaminants in the environment; technology that exploits original principles to reduce and control their environmental presence; as well as the development, implementation and efficacy of national and international policies to protect human health and the environment from emerging contaminants.