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791.
The consumption of contaminated food crops, meat and milk has significantly increased the concentrations of trace metals in human blood as compared to the control area. 相似文献
792.
Mohammad Dadashzadeh Faisal Khan Kelly Hawboldt Rouzbeh Abbassi 《Process Safety and Environmental Protection》2011,89(5):295-299
Fugitive emission rate quantification in an oil and gas facility is an important step of risk management. There are several studies conducted by the United States Environmental Protection Agency (USEPA) and American Petroleum Institute (API) proposing methods of estimating emission rates and factors. Four major approaches of estimating these emissions, in the order of their accuracy, are: average emission factor approach, screening ranges emission factor approach, USEPA correlation equation approach, and unit-specific correlation equation approach. The focus of this study is to optimize the USEPA correlation equations to estimate the emission rate of different units in an oil and gas facility. In the developed methodology, the data available from USEPA (1995) is used to develop new sets of equations. A comparison between USEPA correlation equations and the proposed equations is performed to define the optimum sets of equations. It is observed that for pumps, flanges, open-ended lines, and others, the proposed developed equations provide a better estimation of emission rate, whereas for other sources, USEPA equations supply the better estimate of emission rate. 相似文献
793.
794.
Feroz Khan M Umarajeswari S Godwin Wesley S 《Journal of environmental monitoring : JEM》2011,13(3):553-562
Activities of 21?Po and 21?Pb in whole-body and in various tissues of brachyuran crabs collected along the Kudankulam coast were studied. A non-uniform distribution of these radionuclides was observed between the various tissues. Of all the tissues, 21?Po and 21?Pb were found to accumulate more in the hepatopancreas and intestine. Among the crabs studied, Charybdis lucifera registered higher 21?Po and 21?Pb activity. Muscle tissue in all the species registered lower activity. The 21?Po/21?Pb activity ratio was found to be greater than unity. The biological concentration factor for organs varied between ~ 10? and 10? for 21?Po and ~102 and 10? for 21?Pb. A significant variation in the accumulation of 21?Po and 21?Pb was noted between species and between seasons (p < 0.05). The mean whole-body internal dose ranged from 1.42 to 6.86 μGy h?1 for 21?Po and from 3.0 × 10?3 to 8.0 × 10?3 μGy h?1 for 21?Pb. The external dose for 21?Po and 21?Pb was 2.41 × 10?? to 5.76 × 10?? μGy h?1 and 4.14 × 10?? to 8.26 × 10?? μGy h?1, respectively. The activity levels recorded are in agreement with values recorded in related organisms in other parts of the world. The total committed effective dose due to the intake of both radionuclides ranged from 80.3 to 871.7 μSv y?1. The median dose calculated due to 21?Po and 21?Pb in certain crabs in Kudankulam is less and would not pose any significant radiological impact on health or a cancer risk to the public, and the seafood is considered safe for human consumption. 相似文献
795.
Khan Irfan Hou Fujun 《Environmental science and pollution research international》2021,28(5):5049-5062
Environmental Science and Pollution Research - We examine the impact of energy consumption and tourism growth on the ecological footprints and economic growth of 38 International Energy Agency... 相似文献
796.
Khan Ali Ahmad Adeel Shahid Azeem Muhammad Iqbal Naeem 《Environmental science and pollution research international》2021,28(37):51632-51641
Environmental Science and Pollution Research - Revival of natural colorants in textile dyeing is one of the important strategies to reduce synthetic chemical-based environmental pollution. The... 相似文献
797.
Khan Faizal Krishnaraj Srinivasamoorthy Raja Prakash Selvaraj Gopinath Cheelil Rabina 《Environmental science and pollution research international》2021,28(15):18567-18588
Environmental Science and Pollution Research - The present study area falls beside the coastal zone of Tamil Nadu, and Puducherry is characterized by varied geological formations that mostly... 相似文献
798.
Verma Sarika Mili Medha Dhangar Manish Jagatheesan Krishnasamy Paul Sriparna Bajpai Harsh Vedanti Nimisha Mallik Jyotirmoy Khan Mohammed Akram Bhargaw Hari Narayan Hashmi Sayed Azhar Rasheed Srivastava Avanish Kumar 《Environmental science and pollution research international》2021,28(46):64929-64950
Environmental Science and Pollution Research - The materials used in electrical and electronic applications have great importance and broader applications, but they have severe electromagnetic... 相似文献
799.
Khan Muhammad Saiful Islam Lee Na Ri Ahn Jaehwan Kim Ji Young Kim Jong Hoon Kwon Ki Hyun Kim Yun-Ji 《Environmental science and pollution research international》2021,28(7):8296-8309
Environmental Science and Pollution Research - Pesticides are emergent toxins often identified in aquatic environments. In the present study, microplasma was employed to reduce the pesticide... 相似文献
800.
Paola Russo Paul R. Amyotte Faisal I. Khan Almerinda Di Benedetto 《Journal of Loss Prevention in the Process Industries》2013,26(6):1634-1638
The effect of size on the severity of explosions involving flocculent materials has been simulated by means of a model previously developed for spherical particles and here extended to the cylindrical geometry of flock. The model consists of the identification of the regime (internal and external heating, pyrolysis/devolatilization reaction, and volatiles combustion) controlling the explosion by the evaluation of dimensionless numbers (Bi, Da, Th and Pc) and then of the estimation of the deflagration index as a function of flocculent size. The model has been validated by means of explosion data of polyamide 6.6 (nylon) at varying diameter and length. The comparison between model and experimental data show a fairly good agreement. 相似文献