全文获取类型
收费全文 | 260篇 |
免费 | 2篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 18篇 |
废物处理 | 27篇 |
环保管理 | 24篇 |
综合类 | 20篇 |
基础理论 | 40篇 |
污染及防治 | 69篇 |
评价与监测 | 55篇 |
社会与环境 | 12篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 5篇 |
2022年 | 28篇 |
2021年 | 23篇 |
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 13篇 |
2017年 | 22篇 |
2016年 | 21篇 |
2015年 | 7篇 |
2014年 | 11篇 |
2013年 | 33篇 |
2012年 | 21篇 |
2011年 | 17篇 |
2010年 | 3篇 |
2009年 | 10篇 |
2008年 | 6篇 |
2007年 | 4篇 |
2006年 | 9篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 4篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1983年 | 2篇 |
排序方式: 共有267条查询结果,搜索用时 31 毫秒
131.
132.
Abadi Dariush Ranjbar Vakil Tahmasbizadeh Masoumeh Arfaeinia Hossein Masjedi Mohammad Reza Ramavandi Bahman Poureshgh Yousef 《Environmental science and pollution research international》2023,30(9):22728-22742
Environmental Science and Pollution Research - Fresh tobacco or the smoke resulting from waterpipe and cigarette contains large amounts of polycyclic aromatic hydrocarbons (PAHs), which consumption... 相似文献
133.
134.
Maryam Mohammadnia Mahmoud Reza Sohrabi 《Journal of environmental science and health. Part. B》2020,55(4):293-300
AbstractIn the present work, dispersive micro-solid phase extraction (D-μ-SPE) method using magnetic graphene oxide tert-butylamine (GO/Fe3O4/TBA) nanocomposite, as an efficient sorbent, was applied for determining 2,4-dichlorophenoxyacetic acid (2,4-D) in water and food samples. Detection was carried out using high-performance liquid chromatography (HPLC) instrument. Influential parameters of D-μ-SPE such as sorbent and its amount, elution solvent and its volume, adsorption and desorption times and pH of sample solution were investigated and optimized. Under the optimized conditions, limit of detection and quantitation values were 0.007 and 0.02?μg/mL, respectively. Recovery data for several real samples were obtained within the range of 88.0–94.0% with a relative standard deviation (RSD) less than 7.5%. The proposed method was successfully applied to quantitative determination of 2,4-D in several vegetables and water samples. 相似文献
135.
136.
Environmental metal toxins, generated through diverse anthropogenic activities, constitute one of the major contaminants that have led to global dispersion of these toxic metals in the ecosystem. Thallium is one of these widely dispersed metals that produce severe adverse effects on human and biological systems. The influence of thallium(I) and thallium(III) on the early events that trigger apoptosis signaling were examined in freshly isolated rat hepatocytes. In addition, the role of oxidative stress, and mitochondria in the induction of apoptosis were also investigated. Incubation of thallium(I) and thallium(III) with isolated rat hepatocytes generated reactive oxygen species (ROS), collapse of mitochondrial membrane potential, activation of caspases cascade, and appearance of apoptosis phenotype. Mitochondrial permeability transition (MPT) pore sealing agents (cyclosporine A and carnitine) and ATP generators (L-glutamine, fructose, and xylitol) inhibited the activation of caspase-3 and apoptosis, indicating that both the cations activated apoptosis signaling via mitochondrial pathway. Pretreatment of hepatocytes with antioxidants (α-tocopherol or deferoxamine) also blocked caspase-3 activation induced by these cations, suggesting that oxidative stress may be directly involved in a mitochondrial MPT pore opening and activation of caspases cascade. These findings contribute to a better understanding of the mechanisms that mediate thallium-induced apoptosis in isolated rat hepatocytes. 相似文献
137.
AbstractSalinity is a serious limiting factor for crop growth and production. The present study was conducted to investigate the response of wheat grown at salinities of 0.12, 0.30 and 0.60?S?m?1 on soil supplemented with 0, 0.5, 1 and 4?mg?kg?1 Se as selenite. Chlorophyll a and b, carotenoid contents, Fe, Zn and Se in shoots as well as shoot dry weight were negatively affected by increased salinity. Se had a dual effect: at 0.5?mg?kg?1, chlorophyll b, proline, and shoot Fe content were increased, catalase activity was stimulated; there was no effect on Zn content and shoot dry weight. At the two higher concentrations, Se led to decreases in chlorophyll content, nutrient concentration, and shoot dry weight. Thus, moderate addition of Se to soil could be a strategy to improve physiological responses and micronutrient status in wheat under salinity stress. 相似文献
138.
The synthesis of silver doped nano-particulate titanium dioxide (Ag/TiO2) using a microemulsion method and an investigation of its photocatalytic activity for the degradation of Acid Red 27 in distilled water under UV-irradiation is reported. The prepared Ag/TiO2 is characterized using transmission electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. The size of the Ag nanoparticles is around 5–15?nm, with almost uniform distribution on the TiO2 particles. The efficiency of the photocatalytic process is evaluated to establish the optimum conditions, found to be at 2?wt% of Ag loading on TiO2, catalyst dosage of 400?mg?L?1, and calcination temperature of 300°C. Complete decolorization of the dye solution on Ag/TiO2 was observed in 20?min of UV irradiation in the optimum conditions. 相似文献
139.
Neghab M Norouzi MA Choobineh A Kardaniyan MR Zadeh JH 《International journal of occupational safety and ergonomics》2012,18(1):97-106
This study aimed to evaluate possible health effects associated with long-term occupational exposure to low levels of mercury vapors. Forty-six subjects exposed to mercury and 65 healthy unexposed employees were studied. The subjects were administered a questionnaire on experienced symptoms and underwent clinical examinations as well as routine biochemical tests. Atmospheric and urinary concentrations of mercury were measured, too. Environmental concentrations of mercury were estimated to be 3.97 ± 6.28 μg/m(3) and urinary concentrations of mercury in exposed and referent groups were 34.30 ± 26.77 and 10.15 ± 3.82 μg/dm(3), respectively. Additionally, symptoms such as somatic fatigue, anorexia, loss of memory, erethism, blurred vision and teeth problems were significantly more common among exposed individuals. These observations indicate that occupational exposure to mercury vapors, even at low levels, is likely to be associated with neurological and psychological symptoms. 相似文献
140.
Nasiri Alireza Malakootian Mohammad Heidari Mohammad Reza Asadzadeh Seyedeh Nastaran 《Journal of Polymers and the Environment》2021,29(8):2660-2675
Journal of Polymers and the Environment - Reactive Blue 19 (RB19) removal from synthetic textile wastewater was investigated by using a CoFe2O4@methylcellulose (MC) activated with peroxymonosulfate... 相似文献