排序方式: 共有19条查询结果,搜索用时 15 毫秒
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Sharafi Zeynab Ehrampoush Mohammad Hassan Salehi-Abargouei Amin Sakhvidi Mohammad Javad Zare Askarishahi Mohsen Mirzaei Masoud Mehrparvar Amir Houshang Fallahzadeh Hossein Dehghani Ali Dalvand Arash 《Environmental science and pollution research international》2021,28(32):43394-43401
Environmental Science and Pollution Research - This study aimed to investigate the effect of exposure to pesticides and the prevalence of type 2 diabetes (T2D). In a cross-sectional study with a... 相似文献
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Amini Hassan Haghighat Gholam Ali Yunesian Masud Nabizadeh Ramin Mahvi Amir Hossein Dehghani Mohammad Hadi Davani Rahim Aminian Abd-Rasool Shamsipour Mansour Hassanzadeh Naser Faramarzi Hossein Mesdaghinia Alireza 《Environmental geochemistry and health》2016,38(1):25-37
Environmental Geochemistry and Health - There is discrepancy about intervals of fluoride monitoring in groundwater resources by Iranian authorities. Spatial and temporal variability of fluoride in... 相似文献
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Natural refrigerant ammonia R-717 and synthetic azeotropic refrigerant R-507 (a blend containing 50% R-143a and 5% R-125 by weight) are used in a wide range of refrigeration systems especially in low-temperature applications. R-717 and R-507 are ozone friendly refrigerants, which have no Ozone Depletion Potential (ODP). Global Warming Potential (GWP) of R-717 and R-507 is equal to zero and 3300, respectively. The high amount of R-507 GWP demonstrates its negative effect on the Earth’s climate change. In this study, a refrigerated warehouse located in Cincinnati, Ohio was modeled and the total energy demand and Coefficient of Performance (COP) was evaluated by eQUEST using two scenarios. The R-717 and R-507 were used as refrigerant in the first and second scenarios, respectively. The results showed that using R-717 in the refrigeration system leads to a 15% energy saving and a higher COP compared to R-507 in all working conditions. The only exception is that at an evaporating temperature below ?35°C which COP values of both refrigerants are approximately equal. 相似文献
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Safaynikoo Peymaneh Dehghani Mohammad Hossein 《Environmental Economics and Policy Studies》2021,23(2):441-466
Environmental Economics and Policy Studies - Economists have long argued over the political economy of tradable emission permits, especially the political pressure of lobby groups on international... 相似文献
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Bahrami Asl Farshad Islami-seginsara Mahdi Ebrahimi Kalan Mohammad Hemmatjo Rasoul Hesam Mousa Shafiei-Irannejad Vahid 《Environmental science and pollution research international》2023,30(13):35757-35768
Environmental Science and Pollution Research - Long-term exposure to ionizing radiation (IR) can cause dire health consequences even less than the dose limits. Previous biomonitoring studies have... 相似文献
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Sharareh Dehghani Farid Moore Razegheh Akhbarizadeh 《Environmental science and pollution research international》2017,24(25):20360-20371
Environmental pollutants such as microplastics have become a major concern over the last few decades. We investigated the presence, characteristics, and potential health risks of microplastic dust ingestion. The plastic load of 88 to 605 microplastics per 30 g dry dust with a dominance of black and yellow granule microplastics ranging in size from 250 to 500 μm was determined in 10 street dust samples using a binocular microscope. Fluorescence microscopy was found to be ineffective for detecting and counting plastic debris. Scanning electron microscopy, however, was useful for accurate detection of microplastic particles of different sizes, colors, and shapes (e.g., fiber, spherule, hexagonal, irregular polyhedron). Trace amounts of Al, Na, Ca, Mg, and Si, detected using energy dispersive X-ray spectroscopy, revealed additives of plastic polymers or adsorbed debris on microplastic surfaces. As a first step to estimate the adverse health effects of microplastics in street dust, the frequency of microplastic ingestion per day/year via ingestion of street dust was calculated. Considering exposure during outdoor activities and workspaces with high abundant microplastics as acute exposure, a mean of 3223 and 1063 microplastic particles per year is ingested by children and adults, respectively. Consequently, street dust is a potentially important source of microplastic contamination in the urban environment and control measures are required. 相似文献
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Faranak Pishgar Homayon Ahmad Panahi Ali Akbar Khodaparast Haghi Vahid Mottaghitalab Amir Hesam Hasani 《Journal of Polymers and the Environment》2016,24(2):176-184
In this research, a novel thermosensitive nanosphere polymer (TNP) was synthesized by copolymerization of N-isopropylacrylamide with 3-allyloxy-1,2-propanediol for the removal of diazinon from water. The characterization of the synthesized adsorbent has been performed by Fourier transform infrared spectrometer, scanning electron microscopy and elemental analysis. Batch adsorption method was performed to investigate the influences of various parameters like pH, temperature and contact time on the adsorption of diazinon. The equilibrium adsorption data of diazinon by TNP was studied by Langmuir, Freundlich, Temkin and Redlich–Peterson model. According to equilibrium adsorption results, the Langmuir, Freundlich and Temkin constants were evaluated to be 0.912 (L/mg), 7.916 (mg/g) (L/mg)1/n and 2.494 respectively at pH 7 and room temperature. Based on Redlich–Peterson model analysis, the equilibrium data for the adsorption of diazinon was conformed well to the Langmuir isotherm model. This method was successfully applied for removal of diazinon from environmental samples. Moreover, in reusing of TNP, the sorption capacity was maintained without any significant change after 10 cycles of sorption–desorption process. 相似文献
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To determine the effects of noise exposure on hearts of newborn mice, 48 pregnant mice were exposed to recorded aircraft flight noise (100?dB) for 150?min from the 2nd day of pregnancy to 7th day after delivery. Mice of the same age were selected as control group. The weights and crown-rump lengths of the fetuses and the newborns were measured, and their hearts were removed under deep anesthesia on the 1st, 7th, and 14th days after birth and prepared histologically. Quantitative changes of the hearts were measured stereologically by the Cavalieri method. The ultrastructural changes of cardiac myocytes were examined using transmission electron microscopy. No histological changes were observed, but the volumes of newborns’ hearts in the experimental groups increased significantly compared to the control group. Photomicrographs of cardiac muscle cells revealed nuclear envelope changes, chromatin condensation, and increased mitochondria and myofibrils in noise-exposed newborns. It is concluded that the newborns of pregnant mice exposed to noise stress have hypertrophic hearts with ultrastructural changes. 相似文献