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排序方式: 共有155条查询结果,搜索用时 312 毫秒
71.
Hussain Muzzammil Arshad Zeeshan Bashir Adnan 《Environmental science and pollution research international》2022,29(31):46612-46619
Environmental Science and Pollution Research - Economic policies related to energy and the environment are found uncertain in developing economies. Renewable energy sources are gradually increasing... 相似文献
72.
Bashir Muhammad Farhan Sadiq Muhammad Talbi Besma Shahzad Luqman Adnan Bashir Muhammad 《Environmental science and pollution research international》2022,29(29):43636-43647
Environmental Science and Pollution Research - Currently, COVID-19 due to emergence of various variants shows no signs of slowing down and has affected every aspect of life with significant... 相似文献
73.
Baloch Qadar Bakhsh Maher Sourath Shah Syed Naseeb Sheeraz Muhammad Iqbal Nadeem Raza Hassan 《Environmental science and pollution research international》2022,29(55):83099-83111
Environmental Science and Pollution Research - The devastating effects of the COVID-19 pandemic have left many repercussions for the tourism industry to preempt any future catastrophe of this... 相似文献
74.
Altaf H. Wani Richard M. R. Branion Anthony K. Lau 《Journal of the Air & Waste Management Association (1995)》2013,63(12):1183-1190
ABSTRACT A lab-scale study was conducted to determine the rate and extent of decomposition of three biofilter media materials—compost, hog fuel, and a mixture of the two in 1:1 ratio—used in biofiltration applied to removal of reduced sulfur odorous compounds from pulp mill air emissions. The rate of carbon mineralization, as a measure of biofilter media degradation, was determined by monitoring respiratory CO2 evolution and measuring the changes in carbon and nitrogen fractions of the biofilter materials over a period of 127 days. Both ambient air and air containing reduced sulfur (RS) compounds were used, and the results were compared. After 127 days of incubation with ambient air, about 17% of the media carbon was evolved as CO2 from compost as compared to 6 and 12% from hog fuel and the mixture, respectively. The decomposition showed sequential breakdown of carbon moieties, and three distinct stages were observed for each of the biofilter media. First-order rate kinetics were used to describe the decomposition stages. Decomposition rates in the initial stages were at least twice those of the following stages. Carbon mineralization showed close dependence on the C/N ratio of the biofilter material. Media decomposition was enhanced in the presence of RS gases as a result of increased bioactivity by sulfur-oxidizing bacteria and other microorganisms, thus reducing the media half-life by more than 50%. At higher concentrations of RS gases, the CO2 evolution rates were proportionally lower than those at the low concentrations because of the limited acid buffering capacity of the biofilter materials. 相似文献
75.
M. Waseem Mumtaz Ahmad Adnan Hamid Mukhtar Khalid Nawaz Ahtisham Raza Zahoor Ahmad 《Environmental monitoring and assessment》2011,172(1-4):581-587
The present work deals with the assessment of bacteriological contamination along with some physico-chemical parameters of water samples from Lahore canal. ANOVA showed that the observed p values of log-transformed viable plate counts, total suspended solids, turbidity, and biological oxygen demand are 0.000, 0.000, 0.000, and 0.000, respectively, which are <0.05, while the p value of total coliforms, total fecal coliforms, and Escherichia coli are 0.728, 0.827, and 0.081, respectively which are >0.05. Significant correlation was observed between log-transformed viable plate counts (CFU), biological oxygen demand, total suspended solids, and turbidity. Further regression analysis revealed that simple line regression model is fit for log-transformed viable plate counts and total suspended solids, log-transformed viable plate counts and turbidity, turbidity and total suspended solids, biological oxygen demand and total suspended solids, biological oxygen demand and log-transformed viable plate counts, and biological oxygen demand and turbidity. 相似文献
76.
Distribution and solid-phase speciation of toxic heavy metals of bed sediments of Bharali tributary of Brahmaputra River 总被引:1,自引:0,他引:1
Raza Rafiqul Hoque K. G. Goswami B. C. Kusre K. P. Sarma 《Environmental monitoring and assessment》2011,177(1-4):457-466
Heavy metal (Fe, Mn, Zn, Cu, Ni, Pb, and Cd) concentrations and their chemical speciations were investigated for the first time in bed sediments of Bharali River, a major tributary of the Brahmaputra River of the Eastern Himalayas. Levels of Fe, Mn, Pb, and Cd in the bed sediments were much below the average Indian rivers; however, Cu and Zn exhibit levels on the higher side. Enrichment factors (EF) of all metals was greater than 1 and a higher trend of EF was seen in the abandoned channel for most metals. Pb showed maximum EF of 32 at site near an urban center. The geoaccumulation indices indicate that Bharali river is moderately polluted. The metals speciations, done by a sequential extraction regime, show that Cd, Cu, and Pb exhibit considerable presence in the exchangeable and carbonate fraction, thereby showing higher mobility and bioavailability. On the other hand, Ni, Mn, and Fe exhibit greater presence in the residual fraction and Zn was dominant in the Fe?CMn oxide phase. Inter-species correlations at three sites did not show similar trends for metal pairs indicating potential variations in the contributing sources. 相似文献
77.
Khaskheli Asadullah Jiang Yushi Raza Syed Ali Khan Komal Akram Qureshi Muhammad Asif 《Environmental science and pollution research international》2021,28(21):26449-26460
Environmental Science and Pollution Research - Environmental degradation has severely affected the natural cycle of ecosystem. It’s high time now and humans should execute strategies... 相似文献
78.
Bashir Muhammad Farhan Ma Benjiang Bashir Muhammad Adnan Bilal Shahzad Luqman 《Environmental science and pollution research international》2021,28(14):16982-16999
Environmental Science and Pollution Research - This study aims to provide a detailed overview of environmental Kuznets curve hypothesis using bibliometric analysis for the Web of Science (WOS)... 相似文献
79.
Ali Daoud Ibrahim Khalid E. Hussain Seik Altaf Abdel-Daim Mohamed M. 《Environmental science and pollution research international》2021,28(5):5566-5574
Environmental Science and Pollution Research - Azoxystrobin (AZ) is an aryloxy pyrimidine fungicide extensively applied in the agriculture field all over the world. There is a little information... 相似文献
80.
Khurshid Adnan Khan Khalid 《Environmental science and pollution research international》2021,28(3):2948-2958
Environmental Science and Pollution Research - The pandemic shock puts the world on quarantine and paused economic operations that affected energy consumption and economic output. This study... 相似文献