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81.
Goyal Keshav Goel Harsh Baranwal Pritika Dixit Aman Khan Fahad Jha Niraj Kumar Kesari Kavindra Kumar Pandey Pratibha Pandey Avanish Benjamin Mercilena Maurya Ankit Yadav Vandana Sinh Rana Suryauday Tanwar Pranay Upadhyay Tarun Kumar Mittan Sandeep 《Environmental science and pollution research international》2022,29(41):61993-62013
Environmental Science and Pollution Research - Environmental mutagens are chemical and physical substances in the environment that has a potential to induce a wide range of mutations and generate... 相似文献
82.
Alireza Bahadori Hari B. Vuthaluru 《Journal of Loss Prevention in the Process Industries》2010,23(2):367-372
Filling losses in tanks due to the expansion of the liquid into the tank and the vapors that are forced out of the tank are generally called displacement losses. Restrictions on vaporization loss of petroleum products give added emphasis to the accurate prediction of vapor pressure and hydrocarbon losses for petroleum products. In this work, firstly, a simple-to-use correlation is developed to estimate the true vapor pressure of liquefied petroleum gas (LPG) and natural gasoline as a function of Reid Vapor pressure (RVP) and temperature as well as the vapor pressure of different mixtures of propane and butane are correlated as a function of ambient air temperature and propane volume percent. Secondly, the filling losses from storage containers are estimated in percentage of liquid pumped in tanks as a function of working pressure and vapor pressure at liquid temperature. The study showed the proposed method to be in good agreement with the available reliable data in the literature. The average absolute deviation between reported data and the proposed correlation is less than 2%. The proposed simple-to-use approach can be of significant practical value for the process engineers and scientists to have a quick check on the prediction of the displacement losses from storage containers as well as for rapid estimation of vapor pressure of LPG and natural gasoline. 相似文献
83.
Sapkota Lok Mani Dhungana Hari Poudyal Bishnu Hari Chapagain Binod Gritten David 《Environmental management》2020,65(4):463-477
Environmental Management - Community forestry (CF) is increasingly recognized as one of the key solutions to forest management and governance challenges in the developing world. At its heart is the... 相似文献
84.
Goyal Divya Kaur Gaganpreet Tewari Rupinder Kumar Rajesh 《Environmental science and pollution research international》2017,24(25):20429-20437
Environmental Science and Pollution Research - The effect of silver nanoparticle anisotropy on the antibacterial properties has been studied against Escherichia coli, Staphylococcus aureus,... 相似文献
85.
Stanley NJ Kuehn TH Kim SW Raynor PC Anantharaman S Ramakrishnan MA Goyal SM 《Journal of environmental monitoring : JEM》2008,10(4):474-481
Background culturable bacteria aerosols were collected and identified in two large public buildings located in Minneapolis, Minnesota and Seattle, Washington over a period of 5 months and 3 months, respectively. The installed particulate air filters in the ventilation systems were used as the aerosol sampling devices at each location. Both pre and final filters were collected from four air handing units at each site to determine the influence of location within the building, time of year, geographical location and difference between indoor and outdoor air. Sections of each loaded filter were eluted with 10 ml of phosphate buffered saline (PBS). The resulting solutions were cultured on blood agar plates and incubated for 24 h at 36 degrees C. Various types of growth media were then used for subculturing, followed by categorization using a BioLog MicroStation (Biolog, Hayward, CA, USA) and manual observation. Environmental parameters were gathered near each filter by the embedded on-site environmental monitoring systems to determine the effect of temperature, humidity and air flow. Thirty nine different species of bacteria were identified, 17 found only in Minneapolis and 5 only in Seattle. The hardy spore-forming genus Bacillus was the most commonly identified and showed the highest concentrations. A significant decrease in the number of species and their concentration occurred in the Minneapolis air handling unit supplying 100% outdoor air in winter, however no significant correlations between bacteria concentration and environmental parameters were found. 相似文献
86.
Kamala Kanta Borah Bhabajit Bhuyan Hari Prasad Sarma 《Environmental monitoring and assessment》2010,169(1-4):347-352
Drinking water quality with respect to lead, iron, fluoride, and arsenic has been carried out in and around tea gardens of Darrang district of Assam, India. The district lies between 26°25′ and 26°55′ northern latitude and 91°45′ and 91°20′ east longitude and covers an area of 3,465.30 km2. Twenty-five different sampling stations were selected for the study. Iron, lead, and arsenic were analyzed by using an atomic absorption spectrometer, Perkin Elmer AA 200, while fluoride was measured by the SPADNS method using a UV–VIS spectrometer, Shimadzu 1240 model. The study revealed that the water sources in the area are heavily polluted with lead. Statistical analysis of the data is presented to determine the distribution pattern, localization of data, and other related information. Statistical observations imply non-uniform distribution of the studied parameters with a long asymmetric tail either on the right or left side of the median. 相似文献
87.
Mamta Goyal Durga Nath Dhar S. K. Singh 《Environmental monitoring and assessment》2010,171(1-4):425-427
The variations of Cl???, F???, and Fe?+?+? in the underground water during pre- and post-monsoon periods for 2003 have been examined, for two places in Unnao district, by argentrometric titration method (Sodic Land Reclamation Project Uttar Pradesh 1998) and atomic absorption spectrometry (Sodic Land Reclamation Project Uttar Pradesh 1998). The concentration of these ions falls outside the limits prescribed by the World Health Organization (WHO 1984). 相似文献
88.
Identification of organic phosphorus compounds in the Bronx River bed sediments by phosphorus-31 nuclear magnetic resonance spectroscopy 总被引:1,自引:0,他引:1
The European Water Framework Directive 2000/60/EC aims to achieve a good ecological status of all surface water bodies in Europe. The definition of the ecological status is based on the hydromorphological, hydrochemical, and hydrobiological features of water bodies. Numerous methods are applied for the purpose of hydromorphological status assessment. This study attempts to compare four different methods (EcoRivHab, LAWA Field and Overview Survey, and Rapid Bioassessment Protocol) that were applied at two study areas in the Czech part of the Elbe River Basin. The selected catchments represent areas with different sizes and physical geographic as well as socioeconomic characteristics. All the methods applied showed the capacity to identify the natural and even the completely changed reaches and provided good information on the river physical habitat state. However, they are varied from the viewpoint of the number of parameters, number of monitored zones, time and knowledge demands of the performed assessment. 相似文献
89.
Goyal Shivam Garg Dixit Luthra Sunil 《Environment, Development and Sustainability》2022,24(4):5195-5224
Environment, Development and Sustainability - Scarcity of natural resources and increasing level of pollution have put the survival of human in trouble. This situation has compelled the world to... 相似文献