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35 articles for “NO2-”

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Research ArticleOpen accessIn the abstractAssessment of Groundwater and Surface Water Pollution at Mitm Area, Ibb City, YemenEsmail A. Sabahi, S. Abdul Rahim, W.Y. Wan Zuhairi et al.Groundwater and surface water samples were collected from Mitm area to study the possible impact of wastewater treatment percolation into the groundwater and surface water. The objective of the study is to assess the groundwater and surface water pollution due to wastewater treatment at Mitm area of Ibb city, in the Republic of Yemen. The concentrations of various physiochemical parameters … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,881 accessesView PDFCite
Research ArticleOpen accessIn the abstractReactive Nitrogen Intermediates Production by Macrophages of Mycobacterium bovis-Infected Goats and Supplemented with Dyhidroxyvitamin D3 in vivoAurora Martinez-Romero, Jose Luis Ortega-Sanchez, Jose Ramon Hernandez-Salgado et al.Problem statement: Tuberculosis (TB) remains one of the world's major health problems. To evaluate in vivo indices of cellular sensitization, antigen-induced Reactive Nitrogen Intermediates (RNI) responses by blood mononuclear cells from Mycobacterium bovis BCG-infected goats supplemented with 1, 25 dyhidroxyvitamin D3 [1, 25-(OH)2D3]. Approach: An experimental, longitudinal and comparative study was planned. Twelve animals of goat cattle 20-to 24-month-old sannen … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 7,615 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Ambient Gasess on Respiration of Soil Supporting Four Crops in Central Saudi ArabiaAkram Ali, Ahmad Alfarhan, Ibrahim Aldjain, Nagat BokhariThis study was conducted at four localities (Maseef, Naseem, Oleya and Industrial City) in Riyadh city, KSA to determine the effect of increased tropospheric gases on responses of in situ soil respiration (Rs) of wheat (Triticum aestivum L. cv. Giza 68), broad bean (Vicia faba L. cv. Lara), kidney bean (Phaseolus vulgaris L. cv. Giza 3) and pea (Pisum sativum … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,464 accessesView PDFCite
Research ArticleOpen accessIn the abstractTreatment of Wastewater by Natural Lagoon for its Reuse in IrrigationM. Driche, D. Abdessemed, G. NezzalThe process of natural lagoon consists in purifying the waste water by simple flow of the effluent in not very deep ponds where proliferate bacteria, algae and other living organisms, under a surrounding air and in the presence of a solar radiation. For this study, which is spread out over 3 years (2004-2006) and which still continues, we chose the … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,181 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrediction of the Daily Mean PM10 Concentrations Using Linear ModelsJ. C.M. Pires, F. G. Martins, S. I.V. Sousa et al.The performance of five linear models to predict the daily mean PM10 concentrations was compared. The linear models proposed were: (i) multiple linear regression; (ii) principal component regression; (iii) independent component regression; (iv) quantile regression; and (v) partial least squares regression. The study was based on data from an urban site in Oporto Metropolitan Area and the analysed period was … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 7,132 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Barley for the Purification of Aquaculture Wastewater in a Hydroponics SystemA.M. Snow, A.E. GhalyBarley was examined for its ability to remove nutrients from aquaculture wastewater. The effects of seed sterilization using ethanol and bleach and seed density on germination and plant growth were investigated. Surface sterilization of barley seeds had a negative impact on germination. Increasing the ethanol concentration and/or the bleach concentration reduced the germination percentage. Barley seeds were first germinated in … …American Journal of Environmental Sciences, Vol. 4, Issue 2 · 30 Apr 2008 · 7,484 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Comparative Study of the Purification of Aquaculture Wastewater Using Water Hyacinth, Water Lettuce And Parrot’s FeatherA. M. Snow, A. E. GhalyWater hyacinth, water lettuce and parrot’s feather plants were examined for their ability to remove nutrients from aquaculture wastewater at two retention times. During the experiment, the aquatic plants grew rapidly and appeared healthy with green color. At hydraulic retention times (HRTs) of 6 and 12 days, the average water hyacinth, water lettuce and parrot’s feather yields were 83, 51 … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,858 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of Hydroponically Grown Macrophytes for Their Suitability as Fish FeedA. M. Snow, Abdel E. GhalyWater hyacinth, water lettuce and parrot's feather plants were examined for their ability to remove nutrients from aquaculture wastewater at two retention times. During the experiment, the aquatic plants grew rapidly in the hydroponics system and appeared healthy with green color. At hydraulic retention times (HRTs) of 6 and 12 days, the average water hyacinth, water lettuce and parrot's feather … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 1 · 31 Mar 2008 · 7,254 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Comparative Assessment of Hydroponically Grown Cereal Crops for the Purification of Aquaculture Wastewater and the Production of Fish FeedA. M. Snow, A. E. Ghaly, A. SnowHydroponically grown wheat, barley and oats were examined for their ability to remove nutrients from aquaculture wastewater. Wheat, barley and oats seeds were germinated in water in a hydroponics system. The seedlings then received wastewater from an aquaculture system stocked with Arctic charr. During the experiment, the crops grew rapidly and fairly uniformly and showed no signs of mineral deficiency … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 9,167 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Assessment of Ambient Air Quality in Rabia Area for Years 2001 and 2004 in the State of KuwaitBader N. Al-Azmi, V. Nassehi, A. R. KhanThe hourly air pollutants concentrations were measured continuously by fixed ambient air stations located over the polyclinics in Rabia area in Capital Governorate in the State of Kuwait. The focus of this investigation is to determine the pollution levels of SO2, NO2 and O3 in year 2001 and 2004 to assess the pollution trends. The recorded data are used in … …American Journal of Environmental Sciences, Vol. 4, Issue 1 · 29 Feb 2008 · 7,104 accessesView PDFCite