Assessment Of Copper and Cadmium in Soils From Paddy Fields

NurDiyana Shahira, Muhammad Syafiq Chea (2017) Assessment Of Copper and Cadmium in Soils From Paddy Fields. Other thesis, INTI INTERNATIONAL UNIVERSITY.

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ABSTRACT Some heavy metals are regarded as toxic trace elements in the environment. Heavy metal pollution in soil or rice grains is of increasing concern. The present study investigated the concentration of Cd and Cu in the paddy field soils where it was collected from Juasseh, Negeri Sembilan and Sekinchan, Selangor. Soil samples were treated with aqua-regia method to determine total metal concentrations as well as sequential extraction technique (SET) to determine the metals bioavailability to plants. The heavy metals concentration was determined using inductively coupled plasma mass spectrometry (ICP-MS) in Universiti Putra Malaysia. Overall, both of the sites were highly contaminated because Cu has exceeded the permissible limit with the highest value of 1682.99 μg/g dw when compared to China. Resistant fraction was detected as the highest accumulation of Cu, indicating that metal was mostly associated with naturally origins and not available to plants, whereas Cd was found to be accumulated highest in acid reducible fraction. Some of the factors influencing the bioavailability of metals and their occurrences in crops studied were soil pH and organic matter content.

Item Type: Thesis (Other)
Additional Information: BBTEI131
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Health & Life Sciences
Depositing User: Unnamed user with email
Date Deposited: 07 Jun 2018 04:28
Last Modified: 07 Jun 2018 04:34

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