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    Survey of the water bodies for ecotoxic metals by laser-induced breakdown spectroscopy

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    The Daily Star_29 March 2017.pdf (146.3Kb)
    Date
    2015-04
    Publisher
    © 2015, Mary Ann Liebert, Inc.
    Author
    Haider, A F M Yusuf
    Rahman, Bulu
    Khan, Zulfiqar H.
    M, Abedin Kazi
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10361/8040
    Citation
    Haider, A. F. M. Y., Rahman, B., Khan, Z. H., & Abedin, K. M. (2015). Survey of the water bodies for ecotoxic metals by laser-induced breakdown spectroscopy. Environmental Engineering Science, 32(4), 284-291. doi:10.1089/ees.2014.0170
    Abstract
    Laser-induced breakdown spectroscopy (LIBS) was applied to the analysis of ecotoxic metals in water samples, an issue of major importance for environmental monitoring. Pollution in water bodies around Dhaka city, Bangladesh (Lat 23.7N, Long 90.4 E), was surveyed. Water samples were collected from Dhaka, the capital city of Bangladesh: Hazaribagh tannery area, Hatirjheel, Kamrangirchar, Dholaikhal, Sadar Ghat, and Showari Ghat. Apart from naturally occurring elements (e.g., Ca, Fe, Mg, Ti, Sr, Si, Al, Na, K, Li, and C), hazardous elements Cr, Co, and Ni were also found in these samples. To determine the concentration of chromium, we did quantitative analyses of the sample by atomic absorption spectroscopy. We found that the overall concentration of Cr is about 0.30ppm or 0.30mg/L in the Hazaribagh area in the rainy season, which is several times higher than the permissible limit of Cr (0.1mg/L by EPA and 0.05mg/L established by the World Health Organization) for drinking water. We did not detect lead in our samples, probably because the concentration of lead was below the detection limit of our LIBS system.
    Keywords
    Elemental analysis; Precipitation; Spectroscopy; Surface water quality
     
    Description
    This review was published in the journal Environmental Engineering Science [© 2015, Mary Ann Liebert, Inc.] and the definite version is available at: 10.1089/ees.2014.0170
    Publisher Link
    http://online.liebertpub.com/doi/abs/10.1089/ees.2014.0170
    Department
    Department of Mathematics and Natural Sciences, BRAC University
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    • Review

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