全文获取类型
收费全文 | 310篇 |
免费 | 3篇 |
国内免费 | 13篇 |
专业分类
安全科学 | 15篇 |
废物处理 | 37篇 |
环保管理 | 29篇 |
综合类 | 49篇 |
基础理论 | 57篇 |
污染及防治 | 104篇 |
评价与监测 | 29篇 |
社会与环境 | 5篇 |
灾害及防治 | 1篇 |
出版年
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 3篇 |
2019年 | 8篇 |
2018年 | 14篇 |
2017年 | 9篇 |
2016年 | 18篇 |
2015年 | 8篇 |
2014年 | 12篇 |
2013年 | 26篇 |
2012年 | 26篇 |
2011年 | 30篇 |
2010年 | 12篇 |
2009年 | 12篇 |
2008年 | 23篇 |
2007年 | 16篇 |
2006年 | 17篇 |
2005年 | 21篇 |
2004年 | 9篇 |
2003年 | 14篇 |
2002年 | 5篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1998年 | 3篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1986年 | 1篇 |
1979年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1967年 | 1篇 |
1965年 | 1篇 |
1959年 | 1篇 |
1958年 | 1篇 |
1957年 | 1篇 |
1921年 | 1篇 |
排序方式: 共有326条查询结果,搜索用时 31 毫秒
191.
Topka Pavel Jirátová Květuše Dvořáková Michaela Balabánová Jana Koštejn Martin Kovanda František 《Environmental science and pollution research international》2022,29(4):5172-5183
Environmental Science and Pollution Research - The aim of this work was to develop a novel method for the preparation of structured Co–Mn mixed oxide catalysts: deposition on stainless steel... 相似文献
192.
193.
Estimate of zearalenone exposure through the intake of white and brown rice in the Korean population
Rice samples (n = 482) harvested for 2010–2012 in South Korea were analyzed for zearalenone content by high-performance liquid chromatography and fluorescence detection. The exposure of the Korean populations was assessed by a deterministic approach. Because the proportion of non-detectable results was >80% in white rice but less than <60% in brown rice, the zearalenone levels for white rice were reported as 0.52 µg kg?1 as lower bound and 2.54 µg kg?1 as upper bound, while for brown rice the middle bound value was 13.9 µg kg?1. The average dietary intake of zearalenone from white and brown rice by the Korean population was estimated to be 1.5 ng kg?1 body weight (bw) day?1 each. For heavy consumers, the average intakes were 18.5 and 10.1 ng kg?1 bw day?1, respectively. The age groups with the highest zearalenone intake were 1–2-year-old children for white rice and 3–6-year-old children for brown rice. Overall, the dietary exposure of the Korean population to zearalenone from white and brown rice was found to be lower than the provisional maximum tolerable daily intake of 0.5 μg kg?1 bw day?1. 相似文献
194.
建立了2组实验室模拟填埋场生物反应器,利用上层和下层同时导排填埋气的方法,研究了填埋气和渗滤液在垃圾体中的产生和迁移情况.并在考虑渗滤液回灌的情况下,设置了C1(渗滤液回灌前加压)、C2(渗滤液回灌后加压)2组对照实验.结果表明,C1在加压后出现短暂的水位雍高现象并在第33 d后消失,而C2一直未出现水位雍高现象,上下同时导气系统能促进渗滤液和填埋气排出,#有效缓解和消除水位雍高.压力促使C1、C2的填埋气由往上迁移转变为往下迁移,C1经历了10 d的填埋气向下迁移准备期,而C2在回灌后填埋气直接往下迁移,回灌会促进孔隙通道打开,有利于气液向下排出. 相似文献
195.
Han Sang Cho Hee Sun Moon Jae Yong Lim Jae Young Kim 《Journal of Material Cycles and Waste Management》2013,15(1):82-89
This study investigated the effect of long chain fatty acids (LCFAs) removal as a pretreatment prior to anaerobic digestion on the production of methane from food waste. The results showed that the anaerobic digestion of food waste containing 1.6 g COD/L of LCFAs was not inhibited (4 days lag-time, 78.3 % methane recovery in 35 days) compared to that of lipid free food waste (3 days lag time, 72.5 % methane recovery in 35 days); however, some unsaturated LCFAs, which are toxic to microorganism, were accumulated in the batch anaerobic digestion reactor. Meanwhile, in a methanogenic activity study, the activity of methanogens was observed to be linearly inhibited by the presence of more than 1 g COD/L of LCFAs. The possibility of the accumulation of unsaturated LCFAs in the reactor should be considered when operating a large-scale continuous system. 相似文献
196.
Application of a new generation of complexing agents in removal of heavy metal ions from different wastes 总被引:1,自引:0,他引:1
Dorota Kołodyńska 《Environmental science and pollution research international》2013,20(9):5939-5949
Complexing agents are extensively applied in many fields of industry. They are used to provide effective controlling trace metal ions in cleaning industries, textile, pulp and paper production, water treatment, agriculture, food industries, etc. Recently, the low biodegradability of these ligands and their accumulation in the environment has become a cause for concern. Therefore, replacement of ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid by more environmentally friendly chelating agents is highly desirable. So far, these acids and their salts have been applied as components of household chemistry, cosmetics, modern microelement fertilizers and agrochemicals. This paper reviews the sorption of heavy metal ions such as Cu(II), Zn(II), Cd(II) and Pb(II) in the presence of the above-mentioned complexing agents on commercially available anion exchangers of different matrix. The obtained sorption results were fitted using the Langmuir and Freundlich sorption isotherm models. The kinetic data were also analysed using the Lagergren, Ho and McKay sorption kinetic equations. The studies were carried out considering the effects of such important parameters as phase contact time, initial concentration, pH and temperature. 相似文献
197.
198.
199.
200.
Ing-Kuang Chang Ming-Kwang Shyu Chien-Nan Lee Miau-Ling Kau Yu-Hsueh Ko Song-Nan Chow Fon-Jou Hsieh 《黑龙江环境通报》2002,22(13):1209-1212
We report a case of a fetus presenting with bradycardia, intermittent atrioventricular (AV) block, ventricular tachycardia (VT) and the signs of fetal congestive heart failure (ascites and scrotal hydrocele) during mid-gestation. Prenatal treatment with β-adrenergic blocker (propranolol) and digitalis glycosides was prescribed because of suspicion of long QT syndrome occurring with fetal congestive heart failure. The male baby was born at 39 weeks of gestation and showed a prolonged QT interval (QTc = 492 ms) and frequent variable AV block or alternating left and right bundle branch block, depending on the atrial rate. Prenatal administration of lidocaine failed to correct the fetal VT. Conversely, propranolol decreased the attack frequency of fetal VT. Postnatal administration of the K+ channel opener (nicorandil) successfully shortened the QT interval and improved the outcome. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献