EVALUATION OF HEAVY METAL CONCENTRATION IN BARI TOMATO-5 AND ALSO IN ASSOCIATED WITH IRRIGATION WATER AND SOIL OF SHARIAKANDI UPAZILLA IN BOGRA DISTRICT, BANGLADESH. Rahman MM, Tareq SM, Ahmed B, Alam MA and Kumar D

BJPST: 15(2): 009-012 [July, 2017]         
ISSN: 2305-1809 (Online version)
ABSTRACT
In this study, soil, water and different plant parts and fruits of tomato (Lycopersicon esculentum Miller) were collected from three different places of Shariakandi Upazilla in Bogra district. The samples water and soil were used to analyze pH, Electric Conductivity (EC) and Total Dissolved Solid (TDS)/ Organic Matter (OM) and also following heavy metals as like cadmium; chromium, copper, iron, nickel, lead and zinc concentrations by using atomic absorption spectrophotometer (AAS) (Varian Spectra AA55B, Australia). But in case of tomato plant parts and fruits were analyzed to identify the amounts of above described heavy metals. In accordance with the results, the lowest and highest heavy metal accumulations measured in fruits were as follows; cadmium (0.03-0.07 mg kg-1), chromium (0.21-1.35 mg kg-1), copper (13.34-13.35 mg kg-1), iron (61.12-65.10 mg kg-1), nickel (0.68-2.79 mg kg-1), lead (0.16-0.28 mg kg-1) and zinc (11.86-24.16 mg kg-1). As a result, the relative abundance of heavy metals in ripen tomato samples were observed as iron>zinc>copper>chromium >nickel >lead>cadmium. This study, it can be said that ripen tomato fruits reflect heavy metal amounts well in polluted areas such as excess use of several agro chemicals, uses, urban and industrial area when compared to unpolluted (control) areas.

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