Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods：A preliminary study

作     者：christophe waterlot aurélie pelfrêne francis douay 

作者机构：Civil and geo-Environmental Engineering Laboratory (LGCgE) ISA Lille 48 boulevard Vauban 59046 Lille cedex France 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2016年第28卷第9期

页      面：183-192页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 083001[工学-环境科学] 08[工学] 

主　　题：Arsenic Speciation Water extracting solution Phytoavailability Ryegrass Contaminated urban soils 

摘      要：An initial exploration was conducted using mathematical and statistical methods to obtain relevant information about the determination of the physicochemical parameters capable of controlling As uptake by ryegrass grown on contaminated *** of As in the soils were from 10 to 47 mg/kg,mainly in the As（V） form（57%–73%）.Concentrations of As in water extracts were very low（61–700 μg/kg）.It was suggested that As（Ⅲ） was mainly in the uncharged species and As（V） in the charged *** methods revealed that the values of the ratio As（Ⅲ）/As（V） depended on the assimilated-phosphorus,the pseudo-total and water-extractable Fe contents and the soil p *** concentrations measured in ryegrass shoots ranged from 119 to 1602 μg/*** linear correlations were obtained between As in ryegrass shoots and water *** transfer coefficient of As correlated well with the ratio assimilated-phosphorus/***（Ⅲ）uptake by the shoot of ryegrass was controlled by the organic matter and Fe-oxide contents.