全文获取类型
收费全文 | 168篇 |
免费 | 10篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 15篇 |
废物处理 | 8篇 |
环保管理 | 43篇 |
综合类 | 95篇 |
基础理论 | 5篇 |
污染及防治 | 2篇 |
评价与监测 | 10篇 |
社会与环境 | 2篇 |
出版年
2024年 | 2篇 |
2022年 | 2篇 |
2021年 | 3篇 |
2020年 | 4篇 |
2019年 | 1篇 |
2017年 | 3篇 |
2016年 | 6篇 |
2015年 | 4篇 |
2014年 | 10篇 |
2013年 | 8篇 |
2012年 | 16篇 |
2011年 | 16篇 |
2010年 | 7篇 |
2009年 | 16篇 |
2008年 | 3篇 |
2007年 | 11篇 |
2006年 | 16篇 |
2005年 | 7篇 |
2004年 | 12篇 |
2003年 | 6篇 |
2002年 | 6篇 |
2001年 | 3篇 |
2000年 | 7篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1985年 | 2篇 |
排序方式: 共有180条查询结果,搜索用时 421 毫秒
91.
92.
Dr. David J. Schaeffer Harold W. Kerster James A. Perry David K. Cox 《Environmental management》1985,9(3):191-197
Extensive criticism of water quality monitoring programs has developed as costs are compared with the benefits produced by monitoring efforts. Collecting water quality data while developing understanding of the functional character of the environment will improve water quality monitoring data utility in environmental management. The environmental audit characterizes the attributes of the natural environment (that is, attribute type, intensity, and variability), providing a theoretical as well as practical foundation for data interpretation. In the view proposed here, traditional monitoring means the very narrow activity of collecting samples and perhaps analyzing them and storing the analyses. In the environmental audit, these activities are a mechanism to systematically improve environmental monitoring and assessment by improving the design and implementation of environmental programs. Major reasons why existing programs fail to meet the needs of legislators, regulators, and conservationists are identified. 相似文献
93.
浅谈洛阳首阳山电厂的清洁生产审核 总被引:1,自引:0,他引:1
首阳山电厂开展了清洁生产审核工作,确定将电厂煤场整改和从电厂二期粉煤灰粗灰中回收铁作为第一轮清洁生产审计的重点,通过开展清洁生产,实现经济效益和环境效益的双丰收. 相似文献
94.
以云南保山某电锌厂清洁生产审核实践为例,分析了该厂审核前存在的问题及审核后取得的效果。探讨了在审核过程中运用清洁生产评价指标体系寻找清洁生产方案的方法。 相似文献
95.
依据《中华人民共和国职业病防治法》及有关法律法规、标准规范的要求,逐一分解了中国石化HSE管理体系各要素中"职业健康"的审核要点,为企业内审员、职业卫生管理人员全面、准确地进行职业健康日常监督和内部审核提供参考。 相似文献
96.
针对"十二五"期间污染减排压力,提出分行业将"减排企业"强制性清洁生产审核纳入减排规划中,以污染物减排量作为审核目标,分八个方面深挖减排潜力,将清洁生产审核绩效纳入减排核算中。并提出促进"减排企业"实施强制性清洁生产审核的政策和资金的约束激励机制。 相似文献
97.
李焕 《安全.健康和环境》2011,11(12):34-37
以某特大型石化企业的审核工作为例,探讨了国家和中国石化对清洁生产审核要求的主要区别,并提出如何实现精细化清洁生产审核。 相似文献
98.
99.
Loss of fish habitat in North America has occurred at an unprecedented rate through the last century. In response, the Canadian
Parliament enacted the habitat provisions of the Fisheries Act. Under these provisions, a “harmful alteration, disruption, or destruction to fish habitat” (HADD) cannot occur unless authorised
by Fisheries and Oceans Canada (DFO), with legally binding compensatory habitat to offset the HADD. The guiding principle
to DFO’s conservation goal is “no net loss of the productive capacity of fish habitats” (NNL). However, performance in achieving
NNL has never been evaluated on a national scale. We investigated 52 habitat compensation projects across Canada to determine
compliance with physical, biological, and chemical requirements of Section 35(2) Fisheries Act authorisations. Biological requirements had the lowest compliance (58%) and chemical requirements the highest (100%). Compliance
with biological requirements differed among habitat categories and was poorest (19% compliance) in riparian habitats. Approximately
86% of authorisations had larger HADD and/or smaller compensation areas than authorised. The largest noncompliance in terms
of habitat area occurred in riverine habitat in which HADDs were, on average, 343% larger than initially authorised. In total,
67% of compensation projects resulted in net losses of habitat area, 2% resulted in no net loss, and 31% achieved a net gain
in habitat area. Interestingly, probable violations of the Fisheries Act were prevalent at half of the projects. Analyses indicated that the frequency of probable Fisheries Act violations differed among provinces. Habitat compensation to achieve NNL, as currently implemented in Canada, is at best
only slowing the rate of habitat loss. In all likelihood, increasing the amount of authorised compensatory habitat in the
absence of institutional changes will not reverse this trend. Improvements in monitoring and enforcement are necessary to
move towards achieving Canada’s conservation goals. 相似文献
100.