A novel strain of Streptomyces sp.DUT_AHX was isolated from sludge contaminated with nitrobenzene and identified on the basis of physiological and biochemical tests and 16S ribosomal DNA (rDNA) sequence analysis.The o...A novel strain of Streptomyces sp.DUT_AHX was isolated from sludge contaminated with nitrobenzene and identified on the basis of physiological and biochemical tests and 16S ribosomal DNA (rDNA) sequence analysis.The optimal degradation conditions were as follows:temperature 30℃,pH 7.0-8.0,shaking speed 150-180 r/min,and inocula 10%(V/V).The strain,which possessed a partial reductive pathway with the release of ammonia,was also able to grow on mineral salts basal (MSB) medium plates with 2-aminophenol, pheno...展开更多
This study was conducted to explore the major sources of pollutants including total suspended particles and levels of NOx,COx,and SOx in Faisalabad Pakistan,which make key contributions to the smog in Faisalabad.Faisa...This study was conducted to explore the major sources of pollutants including total suspended particles and levels of NOx,COx,and SOx in Faisalabad Pakistan,which make key contributions to the smog in Faisalabad.Faisalabad is the third largest city of Pakistan where the situation is aggravating due to industrial expansion,population growth and an increasing volume of traffic.Study was conducted for the period of three months at different stations in Faisalabad.The concentrations of total suspended particles,levels of NOx,SOx and COx are 160μg/m^(3) to 506μg/m^(3),26μg/m^(3) to 64μg/m^(3),110μg/m^(3) to 139μg/m^(3) and 5.5 mg/m^(3) to 18.2 mg/m^(3),respectively.As a result,air pollution control should not simply focus on controlling particulate emission,but also involve adopting an integrated multi-pollutant control strategy.Measured concentrations were at an intermediate level with respect to parameters by using Geographical Information System(GIS)and GPS.The results were compared with the permissible limits of United States Environmental Protection Agency(USEPA)and National Environmental Quality Standards(NEQS).展开更多
文摘A novel strain of Streptomyces sp.DUT_AHX was isolated from sludge contaminated with nitrobenzene and identified on the basis of physiological and biochemical tests and 16S ribosomal DNA (rDNA) sequence analysis.The optimal degradation conditions were as follows:temperature 30℃,pH 7.0-8.0,shaking speed 150-180 r/min,and inocula 10%(V/V).The strain,which possessed a partial reductive pathway with the release of ammonia,was also able to grow on mineral salts basal (MSB) medium plates with 2-aminophenol, pheno...
文摘This study was conducted to explore the major sources of pollutants including total suspended particles and levels of NOx,COx,and SOx in Faisalabad Pakistan,which make key contributions to the smog in Faisalabad.Faisalabad is the third largest city of Pakistan where the situation is aggravating due to industrial expansion,population growth and an increasing volume of traffic.Study was conducted for the period of three months at different stations in Faisalabad.The concentrations of total suspended particles,levels of NOx,SOx and COx are 160μg/m^(3) to 506μg/m^(3),26μg/m^(3) to 64μg/m^(3),110μg/m^(3) to 139μg/m^(3) and 5.5 mg/m^(3) to 18.2 mg/m^(3),respectively.As a result,air pollution control should not simply focus on controlling particulate emission,but also involve adopting an integrated multi-pollutant control strategy.Measured concentrations were at an intermediate level with respect to parameters by using Geographical Information System(GIS)and GPS.The results were compared with the permissible limits of United States Environmental Protection Agency(USEPA)and National Environmental Quality Standards(NEQS).
