37 articles for “Pollutant Concentration”

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Research ArticleOpen accessIn the abstractNumerical Simulation of Liquid Bio-Fuel Combustion in an EGR Equipped Micro Gas TurbineMaria Cristina Cameretti, Raffaele Tuccillo, Fabrizio Reale, Renzo PiazzesiThis paper focuses the attention to the possibility of a correct combustion close to the flameless regime, even in the presence of lower calorific value fuels like those that can be found with high concentrations in the bio-mass derived ones. In addition, the authors pay attention to the nitric oxide control by means of an optimal choice of the pilot … …American Journal of Applied Sciences, Vol. 12, Issue 7 · 4 Aug 2015 · 6,715 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDaily distribution Map of Ozone (O3) from AIRS over Southeast AsiaJasim M. Rajab, M.Z. MatJafri, H.S. Lim, K. AbdullahProblem statement: Daily retrieved Ozone (O3) column data for 12 day for periods varying (11-18 August) 2005 and 2003 and (12-19 February) 2005, obtained from the Atmospheric Infrared Sounder AIRS, are utilized to investigate the ozone distribution over the Southeast Asia. Approach: AIRS included on the Earth Observing System (EOS) Aqua satellite launched on 4 May 2002. Ozone (O3) is … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,974 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDifferential Gene Expression in Zebrafish (Danio rerio) Following Exposure to Gaseous Diffusion Plant Effluent and Effluent Receiving Stream WaterBen F. Brammell, Andrew J. WiggintonProblem statement: The expression of six genes known to serve as bioindicators of environmental stress were examined using real-time quantitative PCR in liver tissue extracted from zebrafish (Danio rerio, Hamilton) exposed to effluent and effluent containing stream water associated with the Paducah Gaseous Diffusion Plant (PGDP). Approach: The PGDP, the only active uranium enrichment facility in the US, is located … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 7,770 accessesView PDF Cite

Research ArticleOpen accessIn the abstractWastewater Treatment Using Horizontal Subsurface Flow Constructed WetlandS. Sarafraz, Thamer Ahamad Mohammad, Megat J. Megat M. Noor, A. LiaghatThe last few decades witnessed sharp focus on environment pollution and its impact on life in nature. Wetlands can be used for biological treatment of wastewater. Problem statement: Scarcity of water is considered as a global problem and Iran is one the countries which is facing water shortage problem. Pollution of water bodies restrict the availability of water for various … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 8,788 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Removal of 4-Chlorophenol and Dichloroacetic Acid in Water Using Ti-, Zr- and Ti/Zr-Pillared Bentonites as PhotocatalystMohamed Houari, Mohamed Saidi, Djamel Tabet et al.Heterogeneous photocatalysis could be alternative remediation technology for water since it does not need the addition of any chemicals and it is suitable for treating low concentrations of pollutant. Although the TiO2 Degussa P 25 is most used photocatalyst its photonic efficiency still low and its recovery from water is considered as an awkward process. In this study the effect … …American Journal of Applied Sciences, Vol. 2, Issue 7 · 31 Jul 2005 · 7,518 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordGadolinium at Low Concentration Suppresses both Osteoclastic and Osteoblastic Activities in the Scales of GoldfishNobuo Suzuki, Kazuki Watanabe, Aika Sekimoto et al.For determining the effect of environmental pollutants on fish bone metabolism, we have developed an in vitro bioassay system using teleost scales that has osteoclasts, osteoblasts and bone matrix as markers: alkaline phosphatase (ALP) for osteoblasts and tartrate-resistant acid phosphatase (TRAP) for osteoclasts. Using this bioassay, the influence of gadolinium (Gd) on osteoclasts and osteoblasts of goldfish scales was examined … …American Journal of Environmental Sciences, Vol. 15, Issue 4 · 20 Sep 2019 · 8,451 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordMapping, Characterization and Dispersion of Metallic Pollutants within a Catchment of Illegal Gold Mining Activities in GhanaWiafe Samuel, Richard Buamah, Helen Essandoh, Lawrence DarkwahThe illegal gold mining activities prevalent in most part of Ghana have caused substantial havoc to the environment especially water bodies which serve as sources of water for domestic, industrial and agricultural purposes. The Ghana Water Company Limited (GWCL) recently shut down their water treatment plant due to the extreme pollution and high cost of treatment. This study focusses on … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 1 · 13 Jan 2018 · 8,176 accessesView PDF Cite