The uptake of heavy metals by fruit type vegetables grown inselected agricultural areas
2004
Khairiah, J.,Universiti Kebangsaan Malaysia, Selangor (Malaysia).Environmental Sciences Program
A study on the uptake of heavy metals by fruit vegetables fromagricultural areas was conducted at Agrotek, Sepang and Bangi,Selangor. The objective of the study was to determine the uptake ofheavy metals by chilies (Capsicum annum) and long beans (Vignasinensis) from the soil. Heavy metals studied were Pb, Cd and Zn. Wetdigestion method was used for heavy metals analysis in thevegetables. Heavy metals from soil samples were extracted bysequential extraction method, which extract heavy metals from easilyand freely leachable fraction (EFLE), acid reduction (AR), organicoxidation (OO) and resistant fraction (RR). The results of the studyshowed that the level of Zn content in long beans (Vigna sinensis)was higher than in chilies (Capsicum annum). However theconcentrations of heavy metals studied in these vegetables were stillbelow the maximum level allowed by the Malaysian Food Act (1983) andFood Regulations (1985) for Pb (2.00 mg kg-1), Cd (1.00 mg kg-1) andZn (30.00 mg kg-1).
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