全文获取类型
收费全文 | 662篇 |
免费 | 32篇 |
国内免费 | 10篇 |
专业分类
安全科学 | 44篇 |
废物处理 | 24篇 |
环保管理 | 156篇 |
综合类 | 80篇 |
基础理论 | 214篇 |
环境理论 | 1篇 |
污染及防治 | 115篇 |
评价与监测 | 33篇 |
社会与环境 | 24篇 |
灾害及防治 | 13篇 |
出版年
2024年 | 1篇 |
2023年 | 10篇 |
2022年 | 6篇 |
2021年 | 10篇 |
2020年 | 18篇 |
2019年 | 17篇 |
2018年 | 27篇 |
2017年 | 26篇 |
2016年 | 31篇 |
2015年 | 25篇 |
2014年 | 34篇 |
2013年 | 58篇 |
2012年 | 38篇 |
2011年 | 57篇 |
2010年 | 32篇 |
2009年 | 35篇 |
2008年 | 45篇 |
2007年 | 40篇 |
2006年 | 31篇 |
2005年 | 28篇 |
2004年 | 15篇 |
2003年 | 15篇 |
2002年 | 31篇 |
2001年 | 11篇 |
2000年 | 8篇 |
1999年 | 6篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 6篇 |
1994年 | 3篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 4篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1981年 | 1篇 |
排序方式: 共有704条查询结果,搜索用时 156 毫秒
701.
Chromated copper arsenate (CCA) treated wood has been used for more than 50 years. Recent attention has been focused on appropriate disposal of CCA-treated wood when its service life ends. Groups in the US and Europe concerned with the possibility of arsenic migration to groundwater from disposed CCA-treated wood have proposed that consumers be required to dispose of the wood as a hazardous waste, in the most protective of landfills. We examined available data for evidence of arsenic migration from unlined construction and demolition (C&D) debris landfills in Florida, where CCA-treated wood is disposed. Florida was chosen because soil, groundwater, landfill design, weather, and levels of CCA-treated wood use make the state a uniquely sensitive indicator for observing arsenic migration from CCA-treated wood disposal sites, should it occur. We developed and quality-checked a CCA-treated wood disposal model to estimate the amount of wood and associated arsenic disposed. By 2000, an estimated 13 million kg of arsenic in CCA-treated wood was disposed in Florida; however, groundwater monitoring data do not indicate that arsenic is migrating from unlined C&D landfills. Our results provide evidence that highly stringent regulation of CCA-treated wood disposal, such as treatment as a hazardous waste, is unnecessary. 相似文献
702.
Food and Environmental Virology - The involvement of the gastrointestinal (GI) tract in severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has been reported in multiple studies.... 相似文献
703.
Roderick B. Gagne Kevin R. Crooks Meggan E. Craft Elliott S. Chiu Nicholas M. Fountain-Jones Jennifer L. Malmberg Scott Carver W. Chris Funk Sue VandeWoude 《Conservation biology》2022,36(1):e13719
Parasite success typically depends on a close relationship with one or more hosts; therefore, attributes of parasitic infection have the potential to provide indirect details of host natural history and are biologically relevant to animal conservation. Characterization of parasite infections has been useful in delineating host populations and has served as a proxy for assessment of environmental quality. In other cases, the utility of parasites is just being explored, for example, as indicators of host connectivity. Innovative studies of parasite biology can provide information to manage major conservation threats by using parasite assemblage, prevalence, or genetic data to provide insights into the host. Overexploitation, habitat loss and fragmentation, invasive species, and climate change are major threats to animal conservation, and all of these can be informed by parasites. 相似文献
704.
Quantifying the climatic suitability for tourism in Namibia using the Tourism Climate Index (TCI) 总被引:1,自引:0,他引:1
Noome Kirsten Fitchett Jennifer M. 《Environment, Development and Sustainability》2022,24(4):5094-5111
Environment, Development and Sustainability - Tourism Climate Indices (TCIs) are the most widely used method to quantify climate suitability for tourism, yet remain more extensively applied in the... 相似文献