Abbreviation: J. Environ. Chem. Ecotoxicol.
Start Year: 2009
Page 1 of 9, showing 20 records out of 169 total, starting on record 1, ending on 20
DOI: 10.5897/JECE2017.0407[Article Number: 2CDEB0766704]
This study assessed the seasonal variation of microbiological, physicochemical and heavy metal analysis of water samples from Ayao Stream around a hospital waste dumpsite. Four samples were collected downstream and analyzed for microbial count, coliforms, pH, electrical conductivity, BOD5, alkalinity, total dissolved solids, water hardness, sulphate, nitrate, chloride and phosphate using standard method. Heavy metals... Read more.
DOI: 10.5897/JECE2017.0416[Article Number: 720A1BB66444]
Boreholes and hand dug wells from Bantaji and Rafin-Kada settlements of Wukari L.G.A. were analyzed for fourteen physicochemical parameters and seven heavy metals collected within July, 2015 to March, 2016 using standard methods. The mean difference in concentration of dissolved oxygen between the wet and dry seasons in the Bantaji boreholes was statistically significant at p<0.05. In addition, the electrical... Read more.
DOI: 10.5897/JECE2017.0405[Article Number: 377BA5366262]
The current daily crude oil production in Nigeria stands at about 2.0 million barrels per day thus placing Nigeria as the 6th largest oil producing country in the world. Volumes of petroleum and its production wastes streams find their way into the inland waters and oceans. Seafood is any form of sea life regarded as food by humans including edible sea seaweeds and microalgae widely eaten as seafood, especially in Asia.... Read more.
DOI: 10.5897/JECE2017.0404[Article Number: B8FCE3E65030]
The Central Electro-Chemical Research Institute in India has a department that specializes in the design of both lead and nickel-chromium batteries. However, the laboratories activities have brought soils contamination of this department. This work involves assessing the presence of heavy metals such as lead, nickel and chromium in contaminated soils in the Center through the single and sequential extraction methods.... Read more.
DOI: 10.5897/JECE2015.0353[Article Number: 7A873EC63573]
Globally heavy metals pollutants in aquatic systems are increasing and creating major ecological disturbance(s) and direct health problems. The study on accumulation of Copper (Cu), Cadmium (Cd), Lead (Pb) and Nickel (Ni) on the bottom surface sediments of Nairobi dam was conducted between November 2012 to April 2013. Seven sampling sites were selected within the dam and sediment samples were collected once in a month... Read more.
DOI: 10.5897/JECE2016.0386[Article Number: F6EA72B61855]
Chemical or organic compounds released during the waste composting could be harmful to the environment. The purpose of this work is to investigate the stability indices of organic matter after the lixiviation runs on composting platforms. The results showed that the organic matter became resistant to biodegradation after 2 months of wastes composting, that the nitrates content decreased, while the phosphorus one... Read more.
DOI: 10.5897/JECE2016.0377[Article Number: 462169660659]
This study provides data on distribution of phthalate esters (PAEs) in the water and sediments in the Ori stream, Iwo, Nigeria. The liquid-liquid extraction method was employed, followed by cleaned up in an alumina column using hexane. Chromatographic separation and quantification were done using Zorbax Eclipse AAA C18 analytical column. The concentrations of DMP, DBP, DEP, and DPP in water (µg/L) ranged from... Read more.
DOI: 10.5897/JECE2013.0306[Article Number: EBD792260027]
This study investigated environmental pollution due to mining activities at the BCL mine in Selibe-Phikwe town, Botswana and assessed the level of heavy metals and sulphur in soil and Grewia bicolor leaves adjacent to the mine. Soil and G. bicolor were contaminated with heavy metals on the downwind side, where also concentrations of sulphur in the soil and G. bicolor were found to be elevated when compared to the upwind... Read more.
DOI: 10.5897/JECE2015.0363[Article Number: 40585B759385]
Polycarbonate plastics (PC) containing bisphenol A (BPA) are used for the production of bottles for storage drinking water. Trace amounts of BPA have been detected in ten different brands of bottled water samples from Khartoum supermarkets. Residues of BPA in bottled water were pre-concentrated using solid-phase extraction and determined by high performance liquid chromatography with fluorescence detector.... Read more.
DOI: 10.5897/JECE2016.0374[Article Number: D44277B59394]
Previous studies revealed high levels of metals in soils, drinking water, foodstuffs and food animals in several communities in Tarkwa, Ghana. Therefore wild rats were trapped from 16 communities in Tarkwa to estimate the environmental pollution state of metals; determine differences in sex in metal accumulation; and assess the potential risks involved. Concentrations of arsenic (As), cadmium (Cd), cobalt (Co), chromium... Read more.
DOI: 10.5897/JECE2015.0370[Article Number: 4C4879459401]
Nowadays, contents of pesticide residues in vegetables had become one of the hot topics closely related to human health. In order to investigate the effectiveness of several cleaning solutions in removing pesticide residues in vegetables, a polluted cauliflower was washed using five types of cleaning solutions which were soda-salt solution, vinegar solution, tamarind juice solution, filtered flour solution, and tap... Read more.
DOI: 10.5897/JECE2015.0365[Article Number: 3EADCAD58818]
A study was conducted to characterize Modjo tannery effluent (wastewater) and determine its impact on the Modjo River using some physicochemical parameters. Accordingly, three tannery wastewater samples along wastewater channel at different distances have been taken and three river water samples (one upstream and two downstream) were collected along the river to determine its impact on the river. The samples have been... Read more.
DOI: 10.5897/JECE2016.0371[Article Number: 830F86158535]
Soil, vegetation and atmospheric pollution have been a serious problem in recent years in Lafia, especially among the communities living along the major highways due to increase in industrialization and vehicular movements. The level of heavy metals (Cd, Cr, Ni, Pb and Zn) in Neem tree leaves, bark and soil along major roads in Lafia were determined using digestion and atomic absorption spectrophotometer methods. The... Read more.
DOI: 10.5897/JECE2015.0354[Article Number: 27E8F3357978]
The effect of dichlorvos on reproductive performance of laying hens was studied. Seven weeks old pullets with an average weight of 557.5 ± 9.5 g were divided into four groups and fed ad libitum with commercial poultry feeds contaminated with 0.01, 0.02 and 0.04% dichlorvos (w/v). The group without dichlorvos served as the control. Exposure to dichlorvos was continued until nine weeks after the hens started laying... Read more.
DOI: 10.5897/JECE2015.0364[Article Number: 083D7EF57805]
Information on the occurrence of pharmaceuticals in the environment of Nigeria is limited, only a single publication previously on pharmaceutical occurrence in the environment of Nigeria, which measured general estrogen levels in Enugu, South-East Nigeria. In order to establish a first overview, surface water samples from six locations as well as ten sewage sludge samples from waste water treatment plants were analysed... Read more.
DOI: 10.5897/JECE2015.0362[Article Number: 29BD0C957807]
The aim of this research was to evaluate neotropical fish sensitivity (Piaractus mesopotamicus, Phallocerus caudimaculatus, Hyphessobrycon eques, and Brachydanio rerio) to a reference substance (potassium chloride); to estimate the lethal concentration (LC50; 96 h) for glyphosate, formulated as Rodeo® alone and in association with 0.5 and 1.0% Aterbane® BR surfactant and to evaluate the histopathology of the... Read more.
DOI: 10.5897/JECE2015.0368 [Article Number: 372EF1857453]
Physicochemical properties of the effluent samples from Forcados Terminal in Warri, Delta State were studied from May 2008 to June 2009. Effluent samples were collected from the two Barge Jetties A and B and Two Saver Pits 1 and 2 inside the tank farm. A total of 96 effluent samples were collected throughout the study period. Physicochemical properties of the effluent samples were determined using Hach methods as... Read more.
DOI: 10.5897/JECE2015.0352 [Article Number: 79C605057157]
The distribution of trace metals (Zn, Cu, Ni, Mn, Fe, Co, V, Pb and Cd) in surface water and sediments from Imo River estuary in relation with the physicochemical variables were studied for both dry and wet seasons. The results obtained revealed that trace metal levels displayed marked spatial and seasonal variations in surface water and sediments, which is attributed to both anthropogenic natural processes in the... Read more.
DOI: 10.5897/JECE2015.0355[Article Number: 8BAFA4D56643]
Physico-chemical and bacteriological characteristics of Sarbah dump site at Weija, Accra were investigated to ascertain the leachate quality for possible treatment. The leachate was observed to be alkaline in nature and had high concentration of the following biological oxygen demand (BOD), chemical oxygen damand (COD) and oil and grease. Samples of leachate were collected from different sites close to the landfill. On... Read more.
DOI: 10.5897/JECE. 2015. 0358[Article Number: 4F136F255721]
The concentration of trace metals were determined in the world of waters River Benue within Makurdi Metropolitan area using atomic absorption spectrophotometer for two seasons. The mean concentration of the heavy metals Pb, Ni, Cu, Cr, Cd and Al obtained in mg/L were 0.42, 0.39, 0.35, 1.58, 0.19 and 0.04 respectively. There was no significant difference in the concentration of heavy metals across the studied stations... Read more.
Page 1 of 9, showing 20 records out of 169 total, starting on record 1, ending on 20