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A study on zinc speciation of Tungabhadra River sediments, Kurnool,south India:A tool in metal pollution monitoring

International Journal of Sediment Research 2018年第4期33卷 510-517页

作者： Madakka Mekapogu Jayaraju Nadimikeri Pramod Kumar Madri Sowjanya Devi Department of Biotechnology and Bioinformatics Yogi Vemana University Department of Geology Yogi Vemana University 3. Department of Earth Sciences Yogi Vemana University 4. Department of Biotechnology and BioinformaticsYogi Vemana University

The Tungabhadra River is one of the sacred rivers in south India. Industrial and mining operations on its banks generate enormous amounts of effluent that have led to substantial metal and nutrient contamination of the aquatic system. In the present investigation an attempt has been made to assess variation in the physico-chemical characteristics and speciation of zinc in the water and sediment of the Tungabhadra River. Most of the metal ions in the collected samples were in high concentrations compared to the applicable standards. The Individual Contamination Factor(ICF) of zn was found to be more at Site-B compared to sites A and C. Zinc-bearing particles were characterized by the different morphologies measuring from large colloidal to small particles which were associated with biological structures or may be present in amorphous nature which were observed by Transition electron microscopy(TEM) with X-EDS(Energy dispersive spectrometry). In conclusion, the level of zn contamination in the Tungabhadra River is increasing at an alarming rate due to industrial activities.

关键词： Physico-chemical parameters speciation of zn TEM-X-EDS Tungabhadra River Individual contamination factor

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