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Spatial Distribution of Heavy Metals in Msimbazi River Mangrove Sediments in Dar es Salaam coastal zone, Tanzania

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dc.creator Agnes, Mrutu
dc.creator Nkotagu, Hudson H.
dc.creator Luilo, Gebhard B.
dc.date 2016-09-21T16:55:12Z
dc.date 2016-09-21T16:55:12Z
dc.date 2013
dc.date.accessioned 2018-03-27T08:58:08Z
dc.date.available 2018-03-27T08:58:08Z
dc.identifier Mrutu, A., Nkotagu, H.H. and Luilo, G.B., 2013. Spatial distribution of heavy metals in Msimbazi River mangrove sediments in Dar es Salaam coastal zone, Tanzania. International Journal of Environmental Sciences, 3(5), p.1641.
dc.identifier http://hdl.handle.net/20.500.11810/4087
dc.identifier.uri http://hdl.handle.net/20.500.11810/4087
dc.description Full text can be accessed at http://search.proquest.com/openview/fb40b0c17b3a25f2d65474b08a0bfbd6/1?pq-origsite=gscholar
dc.description This article, reports on distribution of heavy metals in sediments of the Msimbazi River mangrove forest. The levels of heavy metal decreased with increasing depth as well as with increasing distance from mangrove to the Indian Ocean shoreline. The total metal levels of heavy metals ranged from 1000 ppm to 27000 ppm (iron, Fe), 16 ppm to 173 ppm (zinc, Zn), 3.1 ppm to 76 ppm (lead, Pb), 13.2 ppm to 71.2 ppm (chromium, Cr), 6.9 ppm to 22.5 ppm (nickel. Ni), 4.1 ppm to 17.4 ppm (cobalt, Co) and 0.03 ppm to 3.90 ppm (cadmium, Cd). These observations indicate that, Msimbazi River sediments have high metal retention. This is attributed, among other factors, to clay contents at 0-50 cm core that ranged from 15.78% to 85.04 % and its content decreased with increasing depth. Thus, the Msimbazi River sediments play a role in filtering heavy metals from the wastewater flowing through it prior to its discharge into Indian Ocean.
dc.language en
dc.title Spatial Distribution of Heavy Metals in Msimbazi River Mangrove Sediments in Dar es Salaam coastal zone, Tanzania
dc.type Journal Article


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