Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties

Currently, the scientific basis for establishing soil environmental criteria is lacking. In order to establish reasonable soil environmental criteria values suitable for soils with different properties, this study selected soils from 16 different sites to determine the toxicity threshold of Zn based...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Luyao Qin, Meng Wang, Shuwen Zhao, Shanshan Li, Xiaoqin Lei, Lifu Wang, Xiaoyi Sun, Shibao Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Zn Soil leaching Dose-response Toxicity threshold Hormesis Environmental pollution TD172-193.5 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/a9dcdfc4e46b4c31b75bff1dfc59533d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a9dcdfc4e46b4c31b75bff1dfc59533d
record_format	dspace
spelling	oai:doaj.org-article:a9dcdfc4e46b4c31b75bff1dfc59533d2021-11-18T04:43:19ZEffect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties0147-651310.1016/j.ecoenv.2021.112999https://doaj.org/article/a9dcdfc4e46b4c31b75bff1dfc59533d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0147651321011118https://doaj.org/toc/0147-6513Currently, the scientific basis for establishing soil environmental criteria is lacking. In order to establish reasonable soil environmental criteria values suitable for soils with different properties, this study selected soils from 16 different sites to determine the toxicity threshold of Zn based on toxicity tests of barley root elongation. In addition, leaching treatments were set up in seven soils with different properties to eliminate the influence of the accompanying anions (Cl-) on the determination of the Zn toxicity threshold. The results indicated that the toxicity thresholds of different soils vary greatly. The EC10 and EC50 ranges of barley root elongation in 16 kinds of non-leached soils were 18.5 mgkg−1 to 1618.7 mgkg−1 and 277.9 mgkg−1 to 3179.8 mgkg−1, respectively. The hormesis effect appeared in the dose response of Zn, and relative barley root elongation reached more than 150%. Leaching significantly reduced the Zn toxicity in acidic soils. The variation ranges of the leaching factor (LF) in the seven soils were LF10 = 1.1–9.3, LF50 = 1.0–3.2. The LF prediction model indicated that pH explained 81.4% of the LF variation (p < 0.01). The soil pH, cation exchange capacity (CEC), and conductivity (EC) explained 97.8% of the EC50 variation in the leached soil (p < 0.01). The results provide reference values for Zn environmental criteria.Luyao QinMeng WangShuwen ZhaoShanshan LiXiaoqin LeiLifu WangXiaoyi SunShibao ChenElsevierarticleZnSoil leachingDose-responseToxicity thresholdHormesisEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 228, Iss , Pp 112999- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Zn Soil leaching Dose-response Toxicity threshold Hormesis Environmental pollution TD172-193.5 Environmental sciences GE1-350
spellingShingle	Zn Soil leaching Dose-response Toxicity threshold Hormesis Environmental pollution TD172-193.5 Environmental sciences GE1-350 Luyao Qin Meng Wang Shuwen Zhao Shanshan Li Xiaoqin Lei Lifu Wang Xiaoyi Sun Shibao Chen Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
description	Currently, the scientific basis for establishing soil environmental criteria is lacking. In order to establish reasonable soil environmental criteria values suitable for soils with different properties, this study selected soils from 16 different sites to determine the toxicity threshold of Zn based on toxicity tests of barley root elongation. In addition, leaching treatments were set up in seven soils with different properties to eliminate the influence of the accompanying anions (Cl-) on the determination of the Zn toxicity threshold. The results indicated that the toxicity thresholds of different soils vary greatly. The EC10 and EC50 ranges of barley root elongation in 16 kinds of non-leached soils were 18.5 mgkg−1 to 1618.7 mgkg−1 and 277.9 mgkg−1 to 3179.8 mgkg−1, respectively. The hormesis effect appeared in the dose response of Zn, and relative barley root elongation reached more than 150%. Leaching significantly reduced the Zn toxicity in acidic soils. The variation ranges of the leaching factor (LF) in the seven soils were LF10 = 1.1–9.3, LF50 = 1.0–3.2. The LF prediction model indicated that pH explained 81.4% of the LF variation (p < 0.01). The soil pH, cation exchange capacity (CEC), and conductivity (EC) explained 97.8% of the EC50 variation in the leached soil (p < 0.01). The results provide reference values for Zn environmental criteria.
format	article
author	Luyao Qin Meng Wang Shuwen Zhao Shanshan Li Xiaoqin Lei Lifu Wang Xiaoyi Sun Shibao Chen
author_facet	Luyao Qin Meng Wang Shuwen Zhao Shanshan Li Xiaoqin Lei Lifu Wang Xiaoyi Sun Shibao Chen
author_sort	Luyao Qin
title	Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
title_short	Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
title_full	Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
title_fullStr	Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
title_full_unstemmed	Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties
title_sort	effect of soil leaching on the toxicity thresholds (ecx) of zn in soils with different properties
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a9dcdfc4e46b4c31b75bff1dfc59533d
work_keys_str_mv	AT luyaoqin effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT mengwang effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT shuwenzhao effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT shanshanli effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT xiaoqinlei effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT lifuwang effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT xiaoyisun effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties AT shibaochen effectofsoilleachingonthetoxicitythresholdsecxofzninsoilswithdifferentproperties
_version_	1718425120189448192

Effect of soil leaching on the toxicity thresholds (ECx) of Zn in soils with different properties

Ejemplares similares