全文获取类型
收费全文 | 706篇 |
免费 | 7篇 |
国内免费 | 32篇 |
专业分类
安全科学 | 9篇 |
废物处理 | 39篇 |
环保管理 | 40篇 |
综合类 | 49篇 |
基础理论 | 101篇 |
污染及防治 | 408篇 |
评价与监测 | 56篇 |
社会与环境 | 39篇 |
灾害及防治 | 4篇 |
出版年
2023年 | 28篇 |
2022年 | 150篇 |
2021年 | 141篇 |
2020年 | 46篇 |
2019年 | 45篇 |
2018年 | 40篇 |
2017年 | 52篇 |
2016年 | 43篇 |
2015年 | 25篇 |
2014年 | 35篇 |
2013年 | 36篇 |
2012年 | 21篇 |
2011年 | 19篇 |
2010年 | 7篇 |
2009年 | 9篇 |
2008年 | 10篇 |
2007年 | 9篇 |
2006年 | 6篇 |
2005年 | 6篇 |
2004年 | 2篇 |
2003年 | 3篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1985年 | 1篇 |
1974年 | 1篇 |
排序方式: 共有745条查询结果,搜索用时 15 毫秒
611.
Shakoor Awais Ashraf Fatima Shakoor Saba Mustafa Adnan Rehman Abdul Altaf Muhammad Mohsin 《Environmental science and pollution research international》2020,27(31):38513-38536
Environmental Science and Pollution Research - Carbon dioxide (CO2) is mainly universal greenhouse gas associated with climate change. However, beyond CO2, some other greenhouse gases (GHGs) like... 相似文献
612.
The oxidation characteristics of NO over Pt/TiO2 (anatase, rutile) catalysts have been determined in a fixed bed reactor as a function of O2, CO and SO2 concentrations in the presence of 8% water. The conversion of NO to NO2 increases with increasing O2 concentration up to 12% and it levels off. This saturation effect is more pronounced over rutile-Pt/TiO2 (r-Pt/TiO2) than that of anatase-Pt/TiO2 (a-Pt/TiO2). The presence of CO increases NO oxidation significantly and this enhanced effect is more pronounced on a-Pt/TiO2 than that on r-Pt/TiO2 with increasing CO concentration at lower temperatures. The same effect is also observed on the catalysts with different Pt and tungsten oxide (WO3) loadings. With increasing Pt and WO3 loadings on TiO2 support (Pt-WO3/TiO2), formation of NO2 is high even at lower temperatures. The presence of SO2 significantly suppresses the oxidation of NO over both r-Pt/TiO2 and a-Pt/TiO2 catalysts but it is less pronounced due to low stability of sulfate on a-Pt/TiO2. 相似文献
613.
Zafar Mazhar Iqbal Kali Sundas Ali Mehtabidah Riaz Muhammad Asam Naz Tayyaba Iqbal Muhammad Mazhar Masood Noshin Munawar Kashif Jan Bilal Ahmed Sohail Waseem Amir Niazi Muhammad Bilal Khan 《Environmental science and pollution research international》2020,27(34):42369-42389
Environmental Science and Pollution Research - Dechlorane Plus (DP) is an unregulated, highly chlorinated flame retardant. It has been manufactured from past 40 years but its presence in... 相似文献
614.
615.
Riffat Naseem Malik Muhammad Zaffar Hashmi Yasmin Huma 《Environmental science and pollution research international》2014,21(2):1188-1196
The aim of the present study was to describe the accumulation of trace metals in the liver, kidney, gills, muscles, and skin of four edible fish species (Tor putitora, Cirrhinus mrigala, Labeo calbasu, and Channa punctatus) of Rawal Lake Reservoir, Pakistan. The fish samples were collected in the pre-monsoon (May 2008) and post-monsoon (October 2007) seasons and were analyzed for heavy metals by using an atomic absorption spectrometer. Kidney and liver showed relatively high concentrations of heavy metals. The accumulation of metals in the different organs of the fish (skin, muscles, and gills) in post-monsoon was higher than in pre-monsoon. In pre-monsoon, the metals followed the trend Zn > Pb > Fe > Cr > Ni > Mn > Co > Cu > Cd > Li, while in the post-monsoon season, the trend was Fe > Pb > Cr > Ni > Zn > Cu > Co > Mn > Cd > Li. The concentrations of Ni, Cr, and Pb in the muscle of all fish species were higher than the WHO guideline values of heavy metals in fishes for human consumption except in T. putitora. Cu level was nearly equal to the WHO maximum levels in C. mrigala and L. calbasu, while it was lower in T. putitora and C. punctatus. It is strongly advocated that risk assessment studies should be conducted and there is an urgent need for water quality restoration and management of Rawal Lake Reservoir. 相似文献
616.
Muhammad Asim Ibrahim William Hogland 《Journal of Material Cycles and Waste Management》2014,16(2):270-281
European Union directives have urged member countries to enhance the recycling and separation of waste fractions, and this has increased the number of temporary storage sites of recyclables and waste fuels. Spontaneous fires at temporary storage sites have become common and pose social/health/environmental risks. Storage sites should be sited sufficiently far from populated regions, so that the concentration of released pollutants from open fires falls below the critical air quality index before the plume reach the downwind population. In this study, the open-burn/open-detonation model developed by the US Environmental Protection Agency was employed, and 540 simulations were performed for nine scenarios of open burning of household waste to estimate suitable sizes of storage heaps and adequate distances between storage sites and populated regions. Furthermore, sensitivity analysis was performed for 1,080 additional simulations to determine the effects of variations in the burn rate, storage dimension and volume of the waste heap on the model output. The resulting chart can be directly employed by waste operators/environmental agencies to organize storage sites to minimize externalities due to open fires. Furthermore, using ArcGIS software, first-cut information of the total Swedish population facing the risk of hazards due to spontaneous fires was provided. 相似文献
617.
Pb-induced changes in roots of two cultivated rice cultivars grown in lead-contaminated soil mediated by smoke 总被引:1,自引:0,他引:1
Akhtar Nazneen Khan Sehresh Malook Ijaz Rehman Shafiq Ur Jamil Muhammad 《Environmental science and pollution research international》2017,24(26):21298-21310
Environmental Science and Pollution Research - Nowadays, public concerns regarding deleterious effect of lead (Pb) is on rise due to its abundance and toxic effect on plants and other living... 相似文献
618.
Miguntanna Nadeeka S. Moses Hamish Sivakumar Muttucumaru Yang Shu-Qing Enever Keith James Riaz Muhammad Zain Bin 《Environmental Fluid Mechanics》2020,20(4):953-986
Environmental Fluid Mechanics - A comprehensive investigation of velocity distribution is presented, and the log law is re-examined using experimental data from a smooth uniform open channel flow.... 相似文献
619.
620.
Waleed Muhammad Ahmad Sajid Rashid Javed Muhammad Asif Samiullah Saifullah 《Environmental science and pollution research international》2020,27(32):39832-39840
Environmental Science and Pollution Research - This study explores the opportunities for irrigated agriculture in Khyber District of Former Federally Administered Tribal Area (FATA). Agriculture... 相似文献