Pub Date : 2023-01-01DOI: 10.4236/ojms.2023.134005
Abdelmoneim Karamalla Gaiballa
The study investigated the concentration of Lead, Cadmium, Nickels and Chromium in sediment and seagrass tissues at six selected sites along the Su-danese Red Sea coast. The findings of the study added some important and necessary information about the status and condition of the coastal environment in the Sudanese Red Sea coast in terms of the extent of pollution with heavy metals. The study sites included: Marsa Bashayer, Marsa Dama Dama, Green Area, Shipyard, Marsa Halout and Dungonab Bay. The Atomic Absorption Spectrophotometer was used to measure Lead, Cadmium and Nick-els. The colorimetric detection method was used for Chromium using the Spectrophotometer. Marsa Dama Dama site revealed high levels concentration of heavy metals in sediment for Lead (60.5) µg/g, Cadmium (0.22) µg/g and Chromium (146.65) µg/g. Marsa Halout showed the highest mean concentration of Nickel in sediment at 14 µg/g. The variation of concentration of metals in sediment between the sites was not significant. The mean concentration of metals in seagrass species tissues ranged from 3.9 to 26.25 µg/g for Lead, 0.1 to 0.90 µg/g for Cadmium, 0.38 to 5.96 µg/g for Nickel and 0.15 to 0.495 µg/g for Chromium. The differences of concentration of heavy metals in seagrass tissues among the sites were significant for Lead and not significant
这项研究调查了苏丹红海沿岸六个选定地点沉积物和海草组织中铅、镉、镍和铬的浓度。这项研究的结果就重金属污染的程度增加了关于苏丹红海沿岸环境状况的一些重要和必要的资料。研究地点包括:Marsa Bashayer, Marsa Dama Dama, Green Area, Shipyard, Marsa Halout和Dungonab Bay。采用原子吸收分光光度计测定铅、镉和镍。采用分光光度法对铬进行比色检测。Marsa Dama Dama站点沉积物中重金属浓度较高，铅(60.5)μg/g，镉(0.22)μg/g，铬(146.65)μg/g。Marsa Halout沉积物中镍的平均浓度最高，为14 μg/g。各站点间沉积物中金属含量变化不显著。海草组织中铅的平均浓度为3.9 ~ 26.25 μg/g，镉为0.1 ~ 0.90 μg/g，镍为0.38 ~ 5.96 μg/g，铬为0.15 ~ 0.495 μg/g。各试验点海草组织中重金属含量差异显著，铅含量差异显著，镉含量差异不显著;镍和铬。
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