Hydrocarbon-Based Contaminants in Drinking Water Sources and Shellfish in the Soku Oil and Gas Fields of South-South Nigeria  

作　　者：Ifeanyichukwu Clinton Ezekwe Christian Livingstone Otiasah Morufu Olalekan Raimi Iyingiala Austin-Asomeji Ifeanyichukwu Clinton Ezekwe;Christian Livingstone Otiasah;Morufu Olalekan Raimi;Iyingiala Austin-Asomeji(Department of Geography and Environmental Management, University of Port Harcourt, Amassoma, Nigeria;Department of Community Medicine, Faculty of Clinical Sciences, Niger Delta University, Amassoma, Nigeria;Department of Community Medicine, Faculty of Clinical Sciences, College of Medical Sciences, Rivers State University, Port Harcourt, Nigeria)

机构地区：[1]Department of Geography and Environmental Management, University of Port Harcourt, Amassoma, Nigeria [2]Department of Community Medicine, Faculty of Clinical Sciences, Niger Delta University, Amassoma, Nigeria [3]Department of Community Medicine, Faculty of Clinical Sciences, College of Medical Sciences, Rivers State University, Port Harcourt, Nigeria

出　　处：《Open Journal of Yangtze Oil and Gas》2022年第4期213-230,共18页长江油气（英文版）

摘　　要：Environmentally unfriendly Oil exploration activities have been ongoing in the Soku area of the Niger Delta of Nigeria since 1956. This study evaluated the concentration of hydrocarbons and heavy metals in Shellfish and drinking water sources in the study area. It revealed the absence (<0.001 mg/l) of most heavy metals (Ni, Ch, Cd, Pb mg/l) in the water column;a high concentration of the major ion composition of seawater (sulphates 5 - 1018;calcium 0.502 - 53.502;sodium 1.247 - 63.337;potassium 0.508 - 102.745;magnesium 0.354 - 42.574 mg/l);and high PAHs (<0.001 - 0.032 mg/l) levels occurring above WHO limits (0.007 mg/l) with some risk of exposure to cancer. Results from the analysis of shellfish showed that concentrations of chromium and zinc were below permissible limits while cadmium concentrations were slightly above permissible limits of the European Community. Nickel and lead were above permissible limits in the fish samples in all standards while PAHs occurred at the cancer risk levels of 10?6. A review of the public health situation in the Soku area with a view to understanding current trends, sources of perturbations and preferable solutions to the potential public health challenges raised in this study is hereby recommended. Also, this study recommends that relevant agencies and developmental partners should launch a national drive to create awareness among people/environmental/public health professionals’/health workers/administrators on this regional concern.Environmentally unfriendly Oil exploration activities have been ongoing in the Soku area of the Niger Delta of Nigeria since 1956. This study evaluated the concentration of hydrocarbons and heavy metals in Shellfish and drinking water sources in the study area. It revealed the absence (<0.001 mg/l) of most heavy metals (Ni, Ch, Cd, Pb mg/l) in the water column;a high concentration of the major ion composition of seawater (sulphates 5 - 1018;calcium 0.502 - 53.502;sodium 1.247 - 63.337;potassium 0.508 - 102.745;magnesium 0.354 - 42.574 mg/l);and high PAHs (<0.001 - 0.032 mg/l) levels occurring above WHO limits (0.007 mg/l) with some risk of exposure to cancer. Results from the analysis of shellfish showed that concentrations of chromium and zinc were below permissible limits while cadmium concentrations were slightly above permissible limits of the European Community. Nickel and lead were above permissible limits in the fish samples in all standards while PAHs occurred at the cancer risk levels of 10?6. A review of the public health situation in the Soku area with a view to understanding current trends, sources of perturbations and preferable solutions to the potential public health challenges raised in this study is hereby recommended. Also, this study recommends that relevant agencies and developmental partners should launch a national drive to create awareness among people/environmental/public health professionals’/health workers/administrators on this regional concern.

关 键 词：Niger Delta Oil and Gas Production Oil Pollution PERIWINKLE Rural Livelihoods Water Quality 

分 类 号：TG1[金属学及工艺—金属学]