全文获取类型
收费全文 | 332篇 |
免费 | 2篇 |
国内免费 | 6篇 |
专业分类
安全科学 | 13篇 |
废物处理 | 34篇 |
环保管理 | 23篇 |
综合类 | 22篇 |
基础理论 | 44篇 |
污染及防治 | 142篇 |
评价与监测 | 42篇 |
社会与环境 | 18篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 8篇 |
2022年 | 60篇 |
2021年 | 35篇 |
2020年 | 11篇 |
2019年 | 13篇 |
2018年 | 14篇 |
2017年 | 15篇 |
2016年 | 22篇 |
2015年 | 17篇 |
2014年 | 17篇 |
2013年 | 37篇 |
2012年 | 15篇 |
2011年 | 15篇 |
2010年 | 9篇 |
2009年 | 12篇 |
2008年 | 9篇 |
2007年 | 8篇 |
2006年 | 4篇 |
2005年 | 2篇 |
2004年 | 2篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1997年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1980年 | 1篇 |
1972年 | 1篇 |
1964年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有340条查询结果,搜索用时 593 毫秒
191.
Meirun Tang Mihardjo Leonardus WW Haseeb Muhammad Khan Syed Abdul Rehman Jermsittiparsert Kittisak 《Environmental science and pollution research international》2021,28(4):4184-4194
Environmental Science and Pollution Research - For an economy to excel in growth, there is usually a trade-off between financial development and environment deterioration. For a country like... 相似文献
192.
Commercially known Ahmer oxide paints are prepared from raw material mainly composed of red iron oxides (hematite) and iron oxyhydroxides. The raw material used in manufacturing of Ahmer oxide comes from some localities in southwest Sinai such as Abu Thor, Allouga, and El lehian. The adsorption of uranium and other radioelements on iron oxides could make the raw material (red iron oxides) and their products environmentally hazardous. The studied samples were subjected to radiometric analysis using NaI (Tl) gamma-ray spectrometer. The average activity concentration of U, Th, Ra, and K are 108.7, 458.8, 88.8, and 627.5?Bq?kg?1, respectively in raw material and 136.4, 14.6, 58.3, and 95.9?Bq?kg?1 in Ahmer oxide. High values of activity concentrations of 238U, 226Ra, and 40K were recorded in Allouga and El lehian raw material. High radioactivities of Allouga and El lehian raw material are mainly attributed to the presence of torbernite, zircon, and monazite, in addition to adsorbed elemental uranium in Ahmer oxide. absorbed dose rate (D), annual effective dose equivalent, radium equivalent activity (Raeq), external hazard index (Hex), and internal hazard index (Hin), as well as representative gamma index (Iγ) were determined from the activity concentrations of 226Ra, 232Th, and 40K. Some of the studied samples do not satisfy the universal standards. 相似文献
193.
Métais G Antoine PO Baqri SR Benammi M Crochet JY de Franceschi D Marivaux L Welcomme JL 《Die Naturwissenschaften》2006,93(7):348-355
Newly discovered fossil material of the enigmatic cetartiodactyl Bugtitherium grandincisivum from the upper Oligocene of the Bugti Member of the Chitarwata Formation in the Bugti Hills (Balochistan, Pakistan) is reported. These new specimens consist of two fragmentary muzzles (one preserving the first incisors and belonging to a juvenile) and a fragmentary right mandible with m3. The morphologies of the anterior dentition and m3 provided by these new specimens confirm the validity of the genus Bugtitherium and advocate probable anthracotheriid affinity for the genus rather than entelodontid or suoid affinities, but do not definitively close the debate about Bugtitherium’s familial affinities within Cetartiodactyla. Although still poorly documented, this large-sized anthracotheriid-like cetartiodactyl is a possible key form for understanding the early evolution of hippos, and, in turn, the ancestry of whales, because of both its morphological similarities with hippos and primitive Paleogene whales and its Tethysian distribution. 相似文献
194.
195.
Several factors influence air pollution, but effect of land uses is pivotal and has direct consequences on growth and development of a city. In order to assess consequent effects of land uses on air pollution, it is important to transform a set of variables into significant components by using principal component analysis. These components help to develop an effective model between air pollution and land uses by application of regression analysis. Lahore, titled as “Paris of the East,” has some featured commonalities with Paris and was jointly selected for research to adopt common policies and measures to combat air pollution. A two-step cluster analysis has been applied to testify resemblance of Paris to towns of Lahore as a cluster. This paper is trying to develop a calibrated model which helps to estimate about air pollution at a significant level with only one independent variable. Furthermore, it helps to control air pollution through sensitization of land uses in Lahore. 相似文献
196.
Seetharaman Prabukumar Gnanasekar Sathishkumar Chandrasekaran Rajkuberan Chandrakasan Gobinath Syed Asad Hodhod Mohamed S. Ameen Fuad Sivaperumal Sivaramakrishnan 《Environmental science and pollution research international》2017,24(26):21272-21282
Environmental Science and Pollution Research - Upon screening for novel and potential biocompounds with larvicidal activities, we successfully isolated hamisonine (HMSN) a limonoid compound from... 相似文献
197.
198.
199.
Fattah Md. Abdul Rimi Reshma Afroz Morshed Syed Riad 《Journal of Material Cycles and Waste Management》2022,24(4):1551-1564
Journal of Material Cycles and Waste Management - Excessive waste generation and ineffective waste management systems in developing cities have become a major challenge in achieving urban... 相似文献
200.
Faisal Muhammad Chunping Xia Abbas Azhar Raza Muhammad Haseeb Akhtar Shoaib Ajmal Muhammad Arslan Ali Abdelrahman 《Environmental science and pollution research international》2021,28(32):43777-43791
Environmental Science and Pollution Research - Climate change is severely damaging the agricultural system of many food producing regions worldwide. Small/subsistent livestock herders are the most... 相似文献