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INVESTIGATION ON THE AFLATOXIN CONTAMINATION OF MILK IN TEHRAN AREA
INVESTIGATION AFLATOXIN CONTAMINATION MILK TEHRAN AREA
2009/12/30
In this survey Aflatoxin contamination of fifty two samples of raw milk and nine samples of commercial milk were determined by T.L.C. Method. The results showed that 92.31% of the samples of raw milk ...
AN INVESTIGATION OF OXIDES OF NITROGEN IN METROPOLITAN TEHRAN
INVESTIGATION OXIDES NITROGEN METROPOLITAN TEHRAN
2009/12/30
Planning of air pollution control programs need knowledge of pollutants emitting sources; the Department of Environmental Health, School of Public Health, Tehran University, performed an air monitorin...
An Investigation on the Natural Radioactivity of Building Materials, Raw Materials and Interior Coatings in Central Turkey
Gamma-Irradiation natural radioactivity building materials biological damage annual effective dose
2009/6/17
Aim: The aim of this investigation was to measure the amount of g-decay of several building materials (brick and cement), raw materials (fly-ash and soil), interior coating materials (foam [used as a...
Investigation of Heavy Metals Concentrations in the Water Wells Close to Zanjan Zinc and Lead Smelting Plant
Heavy metals environmental pollution drinking water zinc and lead smelting
2009/12/16
Background and Objectives: Heavy metals processing industry has always been a major cause of concern which affects soils, surface waters, ground waters and river sediments contaminations. Thus, the Za...
INVESTIGATION OF INTERMITTENT CHLORINATION SYSTEM IN BIOLOGICAL EXCESS SLUDGE REDUCTION BY SEQUENCING BATCH REACTORS
Biological sludge chlorine sludge oxidation yield coefficient specific oxygen uptake rate sludge volume index
2009/12/16
The excessive biological sludge production is one of the disadvantages of aerobic wastewater treatment processes such as sequencing batch reactors. To solve the problem of excess sludge production, ox...
ENDOTOXIN EXPOSURE IN SEWAGE TREATMENT WORKERS: INVESTIGATION OF EXPOSURE VARIABILITY AND COMPARISON OF ANALYTICAL TECHNIQUES
endotoxin exposure variability analyzing techniques
2010/12/22
Introduction: Objectives were to give an overview of endotoxin exposure and its determinants in sewage treatment workers, and to study exposure to culturable and non-culturable microorganisms and the ...