全文获取类型
收费全文 | 151篇 |
免费 | 1篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 6篇 |
废物处理 | 4篇 |
环保管理 | 10篇 |
综合类 | 28篇 |
基础理论 | 34篇 |
污染及防治 | 53篇 |
评价与监测 | 7篇 |
社会与环境 | 14篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 3篇 |
2022年 | 5篇 |
2021年 | 4篇 |
2020年 | 5篇 |
2019年 | 8篇 |
2018年 | 4篇 |
2017年 | 9篇 |
2016年 | 7篇 |
2015年 | 8篇 |
2014年 | 9篇 |
2013年 | 18篇 |
2012年 | 7篇 |
2011年 | 11篇 |
2010年 | 5篇 |
2009年 | 8篇 |
2008年 | 9篇 |
2007年 | 5篇 |
2006年 | 8篇 |
2005年 | 8篇 |
2004年 | 9篇 |
2003年 | 2篇 |
2001年 | 1篇 |
1998年 | 1篇 |
1995年 | 1篇 |
1991年 | 1篇 |
1981年 | 1篇 |
排序方式: 共有157条查询结果,搜索用时 531 毫秒
71.
Within Canada, it has been recognized in the last decade that military training activities may have impacts on the environmental quality of training ranges. However, impacts of activities specific to Air Force Bases have not yet been intensely documented. A hydrogeological study was accomplished at the Cold Lake Air Weapons Range, Alberta, to evaluate the environmental impacts of using bombs, rockets, strafing, and open burning/open detonation (OB/OD) on the quality of soil, ground water, surface water, and lake sediments. Samples were analyzed for metals, anions, ammonium perchlorate (NH(4)ClO(4)), and energetic materials (EM). It was found that training activities did not result in measured values being exceeded on the basis of guidance values for surface water and lake sediments. Contamination by metals was mostly limited to soils, and some metals may be related to the use of bombs (Cd, Cu, Pb), strafe (Cu), and rockets (As, Ba, Cd, Cr, Cu, Fe, Ni, Pb, U, V, Zn). TNT (2,4,6-trinitrotoluene) was the main EM found in soils, while RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) was more common in ground water. Both are related to live bombing, while nitroglycerine (NG) is related to rocket use and was detected in soils only. Aluminum, nitrate, and ammonium perchlorate detected in ground water may be related to live bombing or rockets. OB/OD operations resulted in the presence of various EM in soils, and of perchlorate and nitrate in ground water. Contamination by metals and explosives in soils was localized around the targets and varied significantly in time; however, in ground water it was more constant and may persist for a period of several years after a target has been removed. 相似文献
72.
Cherif Sonia Djelal Hayet Firmin Stephane Bonnet Pierre Frezet Lawrence Kane Abdoulaye Amine Assadi Aymen Trari Mohamed Yazid Hynda 《Environmental science and pollution research international》2022,29(44):66640-66658
Environmental Science and Pollution Research - This study deals with the toxicity of the treated solutions of two types of dyes, namely, the anthraquinonic Reactive Bleu 19 dye (RB19) and the... 相似文献
73.
Manzo Sonia Parrella Luisa Schiavo Simona Spaziani Fabio Chiavarini Salvatore Tebano Carlo De Maio Lucio Capone Stefano Siciliano Anna Valeria Armiento Giovanna 《Environmental science and pollution research international》2022,29(55):83291-83303
Environmental Science and Pollution Research - In this study we propose, a multi-step strategy of selection and characterization of long-term dataset of contaminant concentrations in different... 相似文献
74.
The morphology of three different detonation soot samples along with other common soot materials such as carbon black, diesel soot and chimney soot was studied by elemental and proximate analysis, X-ray diffraction and electron microscopy. The goal of this study was to better define the morphology of the detonation soot in order to better assess the interactions of this type of soot with explosive residues. The detonation soot samples were obtained by the detonation of artillery 155mm projectiles filled with either pure TNT (2,4,6-trinitrotoluene) or composition B, a military explosive based on a mixture of TNT and RDX (trimethylentrinitramine). The carbon content of the soot samples varied considerably depending on the feedstock composition. Detonation soot contains less carbon and more nitrogen than the other carbonaceous samples studied, due to the molecular structure of the energetic materials detonated such as TNT and RDX. The ash concentration was higher for detonation soot samples due to the high metal content coming from the projectiles shell and to the soil contamination which occurred during the detonation. By X-ray diffraction, diamond and graphite were found to be the major crystalline carbon forms in the detonation soot. Two electron microscopy techniques were used in this study to visualise the primary particles and to try to explain the formation mechanism of detonation soot samples. 相似文献
75.
Sonia L. M. Fankem Lisbeth Echevarría-Núñez Kelley Riley Charles P. Gerba 《Food and environmental virology》2009,1(3-4):155-160
To control the spread of avian flu (influenza) and other viruses of concern among commercial flocks, it is essential that proper disinfection procedures be developed along with methods for assessing their performance. Such methods must be rapid and inexpensive. Coliphages were used as indicators to demonstrate the efficacy of quaternary ammonium compounds and chlorine bleach for the inactivation of viruses in chicken cages. The concentration of indigenous coliphages in chicken litter was found to be 104–107 per gram and from 0 to 8,500 per 100 cm2 of floor surface. To assess the effectiveness of the disinfectants, floor samples were collected pre and post disinfection. These results indicated that chlorine bleach was more effective than quaternary ammonium compounds in reducing the amount of indigenous coliphages. To obtain better quantitative data, MS-2 coliphage was sprayed onto cage floors, left overnight to dry, and then the surfaces disinfected. Similar results were obtained with both indigenous coliphages and MS-2. There appears to be no significant difference in coliphage reduction by increasing the contact time from 10 to 30 min. To ensure at least a 99.9% reduction of virus at least 236 ml of household bleach per 3.78 l should be used. 相似文献
76.
Seasonal migration occurs in many animal systems and is likely to influence interactions between animals and their parasites. Here, we focus on monarch butterflies (Danaus plexippus) and a protozoan parasite (Ophryocystis elektroscirrha) to investigate how host migration affects infectious disease processes. Previous work showed that parasite prevalence was lower among migratory than nonmigratory monarch populations; two explanations for this pattern are that (1) migration allows animals to periodically escape contaminated habitats (i.e., migratory escape), and (2) long-distance migration weeds out infected animals (i.e., migratory culling). We combined field-sampling and analysis of citizen science data to examine spatiotemporal trends of parasite prevalence and evaluate evidence for these two mechanisms. Analysis of within-breeding-season variation in eastern North America showed that parasite prevalence increased from early to late in the breeding season, consistent with the hypothesis of migratory escape. Prevalence was also positively related to monarch breeding activity, as indexed by larval density. Among adult monarchs captured at different points along the east coast fall migratory flyway, parasite prevalence declined as monarchs progressed southward, consistent with the hypothesis of migratory culling. Parasite prevalence was also lower among monarchs sampled at two overwintering sites in Mexico than among monarchs sampled during the summer breeding period. Collectively, these results indicate that seasonal migration can affect parasite transmission in wild animal populations, with implications for predicting disease risks for species with threatened migrations. 相似文献
77.
García-Cambero Jesús Pablo Corpa Cristina Lucena Miguel Angel Méndez Paloma Sierra Pilar Galán-Madruga David Aguayo Sonia 《Environmental science and pollution research international》2021,28(36):49921-49935
Environmental Science and Pollution Research - Diclofenac (DCF), 17-β-estradiol (E2), and 17-α-ethinylestradiol (EE2) are emerging pollutants included in the first watch list agreed by... 相似文献
78.
Recovery of Native Earthworms in Abandoned Tropical Pastures 总被引:3,自引:0,他引:3
Yaniria Sanchez-De Leon‡ Xiaoming Zou Sonia Borges† Honghua Ruan 《Conservation biology》2003,17(4):999-1006
79.
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
80.
Emmanuel Delbart Grégory Mahy Bernard Weickmans Fran?ois Henriet Sébastien Crémer Nora Pieret Sonia Vanderhoeven Arnaud Monty 《Environmental management》2012,50(6):1089-1097
Japanese knotweed Fallopia japonica is an extremely abundant invasive plant in Belgium and surrounding countries. To date, no eradication method is available for land managers facing the invasion of this rhizomatous plant. We tested different chemical herbicides with two application methods (spraying and stem injection), as well as mechanical treatments, on knotweed clones throughout southern Belgium. The tested control methods were selected to be potentially usable by managers, e.g., using legally accepted rates for herbicides. Stem volume, height and density reduction were assessed after one or two years, depending on the control method. Labor estimations were made for each control method. No tested control method completely eradicated the clones. Stem injection with glyphosate-based herbicide (3.6?kg?ha?1 of acid equivalent glyphosate) caused the most damage, i.e., no sprouting shoots were observed the year following the injection. The following year, though, stunted shoots appeared. Among the mechanical control methods, repeated cuts combined with native tree transplanting most appreciably reduced knotweed development. The most efficient methods we tested could curb knotweed invasion, but are not likely to be effective in eradicating the species. As such, they should be included in a more integrated restoration strategy, together with prevention and public awareness campaigns. 相似文献