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159 results for “contaminate”
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Research ArticleOpen accessIn the abstractStudies on the Seasonal Changes in Antioxidant Enzymes Activity on Differently, Polluted Areas along the Bay of Bengal Employing Perna viridis as an Animal ModelC. Amutha, P. SubramanianAntioxidants are the innate or acquired molecules capable of slowing down or preventing the oxidative damage (damage due to reactive oxygen species) that caused by free radicals. The antioxidant enzyme activity in response to season as well as hydrocarbon pollution was attempted. Rayapuram fishing harbor of Chennai (Station-1) is highly oil contaminated with oil sleeks on the surface. The relatively … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 2 · 31 Jul 2012 · 7,670 accessesView PDFCite
Research ArticleOpen accessIn the abstractKinetics of Biological Treatment of Low Level Pesticide WastewaterAbdel E. Ghaly, Deepika DavePesticides are chemical substances intended to protect food crops and livestock from pests in order to pro-mote agricultural productivity and protect public health. Contamination of soil, air and water and threat to human and animal health are the major constraints in the use of pesticides. Treatment of pesticide contaminated water is, therefore, paramount. Biological treatment provides the most economical option … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 4 Jul 2012 · 8,168 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermining the Effect of Sediment Resuspension from the Activity of Phenoloxidase in Penaeid Shrimp Post LarvaeNapaporn Leadprathom, Pornpimon Teangtarn, Kedsiri Ing-kanorn et al.Problem statement: Regular sediment resuspension or dredging in coastal zones can induce stress in a postlaval penaeid shrimp, which affects immune response. Phenoloxidase is a significant enzyme in the penaeid shrimp’s immune system which, when used as a biomarker, can serve as an early warning sign in ecological systems. The stress response of shrimp postlarvae from sediment reuspension was analyzed … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 12 Jun 2012 · 7,091 accessesView PDFCite
Research ArticleOpen accessIn the abstractHospital Water Supply as a Potential Source of Opportunistic PathogensH. T. El-Zanfaly, N. A. Hassanean, E. M. Hassan, L. I. El-SeadawyIn Egypt as well as in many other developing countries, there are no specific standards for hospital water. Even water is free from the traditional bacterial indicators, it may represent a source of health hazards especially for elderly, children and patients under dialysis due to the presence of opportunistic pathogenic bacteria. The study was carried out on the bacteriological water … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 18 May 2012 · 7,279 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeavy Metal Contamination of Soils and Water Resources Kettara Abandoned MineManuel Valiente, Gustavo Perez, Marta Avila et al.Problem statement: Metal mining; together with mineral smelting and processing, have contaminated the environment surrounding mine areas throughout the world exceeding natural background concentration. Approach: These processes introduce metal contaminants into the environment through gaseous and particulate emissions, waste liquids and solid wastes. The principal objective of this study was to investigate soil and water contamination in the vicinity of … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 8 May 2012 · 8,835 accessesView PDFCite
Research ArticleOpen accessIn the abstractThreat of the Health Quality of Garden Produces Linked to Pollution by Toxic Metals on Some Gardening Sites of BeninKoumolou Luc, Edorh A. Patrick, Agbandji Lucien et al.Problem statement: Water and soil are vital resources used in agriculture. Current data establish a link between the pollution of soil, water and public health. For this reason, this study attempted to establish a link between the level of pollution of garden sites in lead (Pb), Cadmium (Cd) and Arsenic (As) and the health quality of vegetables grown there, through … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 23 Apr 2012 · 7,668 accessesView PDFCite
Research ArticleOpen accessIn the abstractEcological Sanitation in Morocco Promotion of the Urine-Diversion Dehydration Toilets-Case of Dayet IfrahYoussef Abarghaz, M. Mustapha Mahi, Mme Christine Werner et al.Problem statement: Most of people in rural areas in Morocco don’t have adequate systems of collection, evacuation and transport of black and gray water. They simply defecate in nature. There is a huge demand, which cannot possibly be met by conventional sanitation systems due to the enormous costs of the pipe network, lack of water and serious environmental drawbacks in … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 7 Apr 2012 · 8,028 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntimicrobial Activity Studies of Bactoriocin Produced by Lactobacilli Isolates from Carrot KanjiHarshada M. Sowani, Prakash ThoratProblem statement: In the present study, Staphylococcus aureus a causative agent of food poisoning is selected as a test organism to study the antimicrobial effect of bacteriocin. S. aureus produces number of exotoxins and enterotoxins which enters the body via contaminated food causing illness. Approach: In this case the use of antibiotics is one of the ways of treatment, but … …OnLine Journal of Biological Sciences, Vol. 12, Issue 1 · 2 Mar 2012 · 8,548 accessesView PDFCite
Research ArticleOpen accessIn the abstractPotential Environment and Public Health Risk Due to Contamination of Heavy Metals from Industrial Waste Water in Lam Thao, Phu Tho, VietnamNguyen Cong Vinh, Ingrid Oborn, Pham Quang Ha et al.Problem statement: In Vietnam, rice cultivation plays an important role in national economic development and food security. However, rice production is facing many problems associated with rapid industrialization and urbanization in the country. Resultant emissions of solid and liquid wastes are often untreated and discharged directly to agricultural land. These practices have potential impacts on the environment and human health. … …American Journal of Environmental Sciences, Vol. 8, Issue 1 · 28 Feb 2012 · 8,430 accessesView PDFCite
Research ArticleOpen accessIn the abstractClamshell vs. Backhoe Excavation of Permeable Reactive BarriersRajandrea Sethi, Steve Day, Antonio Di MolfettaProblem statement: Permeable Reactive Barriers (PRBs) were one of the most widespread solutions for the remediation of contaminated aquifers. Although, a variety of excavation methods had been developed, backhoe (hydraulic excavators) were commonly used for the construction of PRBs in North America. Approach: In Europe, the most common method of slurry excavation was with a hydraulic grab and crane. The … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 4 Nov 2011 · 7,242 accessesView PDFCite