کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453613 1620806 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study
ترجمه فارسی عنوان
تعیین تأثیر پارامترهای فیزیکوشیمیایی خاک های شهری به عنوان در دسترس بودن با استفاده از روش های شیمی متریک: مطالعه مقدماتی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

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 topsoils. Concentrations 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 species. Chemometric 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 pH. Arsenic concentrations measured in ryegrass shoots ranged from 119 to 1602 μg/kg. Positive linear correlations were obtained between As in ryegrass shoots and water extractable-As. The transfer coefficient of As correlated well with the ratio assimilated-phosphorus/Fe-oxides. As(III) uptake by the shoot of ryegrass was controlled by the organic matter and Fe-oxide contents.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 47, September 2016, Pages 183–192
نویسندگان
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