Submit Manuscript

International Journal of Chemical Technology

Year: 2013 | Volume: 5 | Issue: 1 | Page No.: 10-21
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 641

Search

Authors

Adama Diarrassouba Tuo

Kandana Marthe Yeo

Metongo Bernard Soro

Albert Trokourey

Yobou Bokra

Keywords

Abidjan city, the economical capital is located in the estuarine part of the Ebrié lagoon. This part of the Ebrié lagoon as become the main receptacle of several discharges from industrial, agricultural, port and urban sewage. Surface sediments were collected from eighteen stations around Abidjan city in order to assess the catchment activities on organic matter and heavy metals inputs into the lagoon. Some important physicochemical parameters (pH, temperature, salinity and conductivity) were also measured. Samples were analyzed using titration method and with an Atomic Absorption Spectrophotometer (AAS) for organic matter and heavy metals, respectively. Levels of physicochemical parameters were found save for aquatic life according to WHO guidelines. Levels of organic matter were ranged within 8.05±7.32 and 67.74±14.07% with highest contents observed in samples collected in the urban area close to Abidjan city. The analysis of sediment samples showed Pb, Cd, Ni, Mn and Zn levels of mean values 404.75±142.08, 2.85±1.97, 45.63±2.73, 107.46±6.51 and 208.77±81.34 mg kg-1 (dry weight), respectively. Apart from Mn and for samples collected in the rural zone close to Bingerville, sediments were found polluted by Pb, Cd, Ni and Zn with concentrations higher then effects ranged severe levels. Except for Mn (p>0.05), spatial and seasonal variations were significant (p<0.0001) for Pb, Cd, Ni and Zn. Therefore, it is urgent to promote treatment of discharges from industries, urban sewage, port, agricultural, etc., before their input in the Ebrié lagoon as its sediments contamination by heavy metals remains a public health problem.
PDF Fulltext XML References Citation

Related Articles

Assessment of the Presence of Selected Heavy Metals and their Concentration Levels in Fresh and Grilled Beef/Guinea Fowl Meat in the Tamale Metropolis, Ghana
Seasonal Variation in Heavy Metal Distribution in the Sediment of Major Dams in Ekiti-State
Effects of Oil Pollution on Body Size and Weight of the Sand Lizard Acanthodactylus scutellatus at the Greater Al-Burgan Oil Field in Kuwait
Contamination of Coastal Sediments in El-Hamrawein Harbour, Red Sea, Egypt
Effect of Sublethal Concentrations of Aqueous Extract of Lepidagathis alopecuroides on Spermatogenesis in the Fresh Water Catfish Clarias gariepinus
Impact of Water Pollution on Histopathological and Electrophoretic Characters of Oreochromis niloticus Fish

Leave a Comment

Your email address will not be published. Required fields are marked *