Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Environmental Science and Technology
  Year: 2018 | Volume: 11 | Issue: 3 | Page No.: 139-146
DOI: 10.3923/jest.2018.139.146
Polycyclic Aromatic Hydrocarbon Levels and Risk Assessment in Water, Sediment and Fish Samples from Alau Dam, Borno State, Nigeria
Joseph Clement Akan , Zaynab Muhammad Chellube, Abdullahi Idi Mohammed, Victor Obioma Ogugbuaja and Fanna Inna Abdulrahman

Abstract:
Background and Objective: Polycyclic aromatic hydrocarbon (PAHs) are of special interest because of their carcinogenicity, mutagenicity and teratogenicity. Their significant importance the awareness about their biochemical and toxicological roles in humans and animals. The objectives are to determine the distribution of PAHs in water, sediment and fish samples and to conduct risk assessment of PAHs levels. Methodology: Water, Sediments and fish samples were from Alau Dam for the determination of 17 PAHs. Extraction and cleanup of the samples were carried out using standard analytical procedures. The levels of the studied PAHs were determined using Agilent 7890A GC/MS. Results: Sources analysis indicated levels of PAHs as originated mainly from pyrogenic. Results from m-ERM-q in the sediments indicated 11% probability of toxicity which classified the sediments as low priority sites. The PAHs levels in the water samples were below the maximum allowable concentrations (MACs) of 0.005-3.0 mg L–1. The PAHs were observed to be higher in Heterotis niloticus dominated in terms of accumulation of PAHs as compared to other fish samples. The average daily dose (ADD) value in the fish studied were less than the tolerable daily dose limit from the daily per capital fish consumption of 0.07 kg for Nigeria. The cumulative probability distributions of calculated incremental life expectancy cancer risk (ILECR) revealed that 3 out of 10,000,000 population are likely to suffer cancer-related illness in their lifetime due to consumption of fish from the study Dam. Conclusion: Results from risk assessment of PAHs in the water and sediment, suggested that the detected concentrations were not high enough to cause adverse effects in the aquatic ecosystem.
 [Fulltext PDF]   [Fulltext HTML]   [XML: Abstract + References]   [References]   [View Citation]  [Report Citation]
How to cite this article:

Joseph Clement Akan, Zaynab Muhammad Chellube, Abdullahi Idi Mohammed, Victor Obioma Ogugbuaja and Fanna Inna Abdulrahman, 2018. Polycyclic Aromatic Hydrocarbon Levels and Risk Assessment in Water, Sediment and Fish Samples from Alau Dam, Borno State, Nigeria. Journal of Environmental Science and Technology, 11: 139-146.

DOI: 10.3923/jest.2018.139.146

URL: https://scialert.net/abstract/?doi=jest.2018.139.146

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

Curve Bottom