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51.
Salah Eddine Sbai Chunlin Li Antoinette Boreave Nicolas Charbonnel Sebastien Perrier Philippe Vernoux Farida Bentaye Christian George Sonia Gil 《环境科学学报(英文版)》2021,33(1):311-323
Photochemical aging of volatile organic compounds (VOCs) in the atmosphere is an important source of secondary organic aerosol (SOA). To evaluate the formation potential of SOA at an urban site in Lyon (France), an outdoor experiment using a Potential Aerosol Mass (PAM) oxidation flow reactor (OFR) was conducted throughout entire days during January-February 2017. Diurnal variation of SOA formations and their correlation with OH radical exposure (OHexp), ambient pollutants (VOCs and particulate matters, PM), Relative Humidity (RH), and temperature were explored in this study. Ambient urban air was exposed to high concentration of OH radicals with OHexp in range of (0.2–1.2)×1012 molecule/(cm3?sec), corresponding to several days to weeks of equivalent atmospheric photochemical aging. The results informed that urban air at Lyon has high potency to contribute to SOA, and these SOA productions were favored from OH radical photochemical oxidation rather than via ozonolysis. Maximum SOA formation (36 µg/m3) was obtained at OHexp of about 7.4 × 1011molecule/(cm3?sec), equivalent to approximately 5 days of atmospheric oxidation. The correlation between SOA formation and ambient environment conditions (RH & temperature, VOCs and PM) was observed. It was the first time to estimate SOA formation potential from ambient air over a long period in urban environment of Lyon. 相似文献
52.
Imran Muhammad Islam Azhar Ul Tariq Muhammad Adnan Siddique Muhammad Hussnain Shah Noor Samad Khan Zia Ul Haq Amjad Muhammad Din Salah Ud Shah Ghulam Mustafa Naeem Muhammad Asif Nadeem Muhammad Nawaz Muhammad Rizwan Muhammad 《Environmental science and pollution research international》2019,26(24):24489-24502
Environmental Science and Pollution Research - The present study aims at evaluating the batch scale potential of cotton shell powder (CSP), Moringa oleifera leaves (ML), and magnetite-assisted... 相似文献
53.
Soulard Christophe-Toussaint Valette Elodie Perrin Coline Abrantes Patricia Catarina Anthopoulou Theodosia Benjaballah Ouassila Bouchemal Salah Dugué Patrick Amrani Mohamed El Lardon Sylvie Marraccini Elisa Mousselin Guilhem Napoleone Claude Paoli Jean-Christophe 《Regional Environmental Change》2018,18(3):651-662
Regional Environmental Change - To address sustainability challenges of agro-ecosystems located in Mediterranean urban regions, this paper focuses on the multidisciplinary subject of urban... 相似文献
54.
Byung Kyu Kim Jamie Krams Erin Krug Mark Leaseburge Justin Lemley Ammar Alkhawaldeh Ray A. Mentzer M. Sam Mannan 《Journal of Loss Prevention in the Process Industries》2012,25(5):780-787
Several catastrophic events in the process industry have caused extensive damage to life and property and have forever changed the process safety landscape. Despite the commitment from the industry, incidents still occur with similar root causes, impacting major companies in various ways. This work examines the financial impact of such incidents on the stability and future of affected companies in different industries. Several devastating incidents were analyzed to evaluate the direct impact in the short- and long-term and to discuss factors influencing the ability of affected companies to withstand the consequence of catastrophic events. 相似文献
55.
56.
Hajji Sawssen Ktari Naourez Ben Salah Riadh Boufi Sami Debeaufort Frédéric Nasri Moncef 《Journal of Polymers and the Environment》2022,30(3):833-854
Journal of Polymers and the Environment - Recently, there is an increasing interest to prepare wound healing agents based on bio-polymers, due to their non-toxicity, biocompatibility and... 相似文献
57.
Al-Khatib IA Arafat HA Basheer T Shawahneh H Salahat A Eid J Ali W 《Waste management (New York, N.Y.)》2007,27(12):1910-1919
There is a great interest in solving problems related to municipal solid waste (MSW) management in the Palestinian territory. However, few studies have been done to assess the extent of these problems and suggest the best alternative solutions. This study aims at assessing MSW conditions in the seven major districts in northern West Bank, Palestinian territory. The study focuses on comparing several MSW management elements (such as collection, budget, and disposal) in municipalities, village councils, and refugee camps in the studied districts and the problems faced by these institutions in handling the waste. It also provides information on MSW collection service availability and waste disposal practices in the districts studied. It was found that, although MSW collection service was available for 98% of the residents in the areas surveyed, no proper treatment or landfill procedure was followed for the collected waste in most of these areas. Instead, waste burning in open dumpsites was the most common practice. Moreover, due to inefficient collection of waste disposal fees from the residents, municipalities were forced to sometimes cut the collection service and reduce its labor force, especially in villages. The budget for MSW management was between 2% and 8% of the total budget of the municipalities studied, indicating a low priority for this issue. 相似文献
58.
Salah A. Soliman Nabila S. Ahmed Kawther S. El‐Gendy Ahmed S. El‐Bakary Abd‐El‐Khalek H. El‐Sebae 《Journal of environmental science and health. Part. B》2013,48(5):401-411
Abstract The susceptibility of wild mallard ducklings to the delayed neurotoxic effect of the neurotoxic organophosphorus insecticides cyanofenphos and leptophos was evaluated following a daily dosing regimen. Ducklings were treated daily with either cyanofenphos or with leptophos at different dose levels for 90 days, or until they died, or became paralyzed. A control group of ducklings given corn oil at 1 ml/kg daily for 90 days was used for comparison. All treated birds were observed daily for any clinical signs of neurotoxicity during the course of this study. All of the surviving ducklings that were treated with cyanofenphos at 4 mg/kg/day or leptophos at 10 mg/kg/day developed clinical signs of delayed neurotoxicity after 7 to 11 weeks of intoxication. Symptoms included leg weakness, ataxia, severe ataxia and paralysis. The observed clinical signs were confirmed by histological changes found in the spinal cords of the treated birds. These changes were of the type associated with organophosphorus‐induced delayed neuropathy (OPIDN). These results demonstrate that wild mallard ducklings are susceptible to OPIDN and this avian species can be used in screening organophos‐phorus compounds for such effect. 相似文献
59.
Madiha F.M. Farghaly Salah M.A.D. Zayed Soliman M. Soliman 《Journal of environmental science and health. Part. B》2013,48(7):575-581
Deltamethrin [(S)-cyano-3-phenoxybenzyl-cis-(1R,3R)-2,2-dimethyl) cyclo–propane carboxylate),1] labelled at gem-dimethyl groups of the cyclopropane ring was applied on two Egyptian soils at a level of 10 mg/kg soil for a laboratory incubation experiment under aerobic and anaerobic conditions. A steady decrease of soil extractable14C-residues, accompanied by a corresponding increase of non- extractable bound 14C-residues was observed over a 90-day incubation period. The percentage of evolved 14CO2 increased with time under aerobic and anaerobic conditions in both soils. The effect of deltamethrin on soil microorganisms as well as the counter effect of microorganisms on the insecticide was also investigated. As the incubation period increased, the inhibitory effect of the insecticide on the microorganisms decreased and the evolution of carbon dioxide depended on the applied dose. The nature of soil methanol soluble residues was determined by chromatographic analysis which revealed the presence of the parent insecticide as the main product in addition to four metabolites: 3-(2′,2′-dibromovinyl)-2,2-dimethylcyclopropane carboxylic acid (II); 3-phenoxybenzaldehyde (III); 3-phenoxybenzoic acid (IV); 3-phenoxybenzyl alcohol (V). 相似文献
60.
Salah A. Soliman Abd‐Blkhalek H. El‐Sebae August Curely Nabila S. Ahmed 《Journal of environmental science and health. Part. B》2013,48(2):207-217
Abstract Brain tissue samples of nice (7.5 g from 25 mouse brains and lamb (25 g) were homogenized and subcellular fractions prepared in order to assay the distribution of neurotoxic esterase (NTE) activity. The specific inhibitor, N,N‐diisopropylphosphorodiamidic fluoride (mipafox) was synthesized and purified. Maximum specific activity of NTE was reached in the microsomal fraction (110,000 g) while the enzyme activity in the soluble fraction (110,000 g) was extremely low. This subcellular distribution of NTE activity in mammal brains is an original contribution. Brain microsomal fraction is suggested to be a more reliable source for the highest activity of NTE. The specific activity of NTE of lamb brain was much higher than that of mouse brain. This night help interpretation of the characteristic species variation in susceptibility to NTE inhibitors which are known to be potent delayed neurotoxic agents. 相似文献