全文获取类型
收费全文 | 608篇 |
免费 | 24篇 |
国内免费 | 41篇 |
专业分类
安全科学 | 226篇 |
废物处理 | 6篇 |
环保管理 | 62篇 |
综合类 | 177篇 |
基础理论 | 44篇 |
污染及防治 | 49篇 |
评价与监测 | 84篇 |
社会与环境 | 15篇 |
灾害及防治 | 10篇 |
出版年
2024年 | 2篇 |
2023年 | 16篇 |
2022年 | 26篇 |
2021年 | 46篇 |
2020年 | 29篇 |
2019年 | 14篇 |
2018年 | 13篇 |
2017年 | 10篇 |
2016年 | 22篇 |
2015年 | 18篇 |
2014年 | 26篇 |
2013年 | 36篇 |
2012年 | 39篇 |
2011年 | 43篇 |
2010年 | 30篇 |
2009年 | 37篇 |
2008年 | 42篇 |
2007年 | 28篇 |
2006年 | 23篇 |
2005年 | 29篇 |
2004年 | 22篇 |
2003年 | 16篇 |
2002年 | 18篇 |
2001年 | 14篇 |
2000年 | 8篇 |
1999年 | 20篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1977年 | 2篇 |
排序方式: 共有673条查询结果,搜索用时 359 毫秒
11.
酞酸酯对人与环境的危害 总被引:32,自引:1,他引:32
酞酸酯是一种增塑剂,随着时间的推移,可由塑料中转移到外环境,现已成为地球上最为广泛存在的环境污染物。该文较系统地介绍了酞酸酯的理化性质,毒性和致癌作用,以及其对环境的影响,环境行为,动物的吸收,分布、代谢和排泄等等,最后还对酞酸酯的有关毒性评价作了部分介绍。 相似文献
12.
生产安全事故风险分级与分级监察研究 总被引:3,自引:4,他引:3
针对我国安全生产形势严峻现状,为进一步提高安全生产监察效率和质量,强化行政执法力度,提出了在我国建立生产安全事故风险分级与分级监察系统,其方法是首先确定行业相对风险度,再计算企业职业伤害风险系数,据此对企业风险进行分级,根据监察力量和监察计划对不同风险级别的企业进行分级监察,为实行集约型安全生产监察工作提供参考。 相似文献
13.
与国民经济长期高增长相背离,证券市场出现了深幅下跌,投资者承受了巨大的投资风险,究其原因,体制性缺陷是重要因素之一。笔者认为,我国证券市场的体制性缺陷主要表现在市场经济环境不够完备、法律法规体系不十分健全、监管体制不力、证券市场的功能定位扭曲、股权分置问题久拖难决等方面。目前该体制性缺陷是导致我国证券市场长期下跌的重要原因,也给证券投资者带来了巨大的投资风险。只有加快改革、完善法律和监管体制,我国证券市场才能具有投资价值并健康发展。 相似文献
14.
本文根据采油厂生产过程风险特点,以生产单元为对象,通过建立全员参与的HSE监督检查体系,实现对采油厂HSE监督检查标准的统一规范,利用开发的HSE监督检查信息集成平台,创建完成采油厂HSE监督检查管理系统。在大庆油田第五采油厂的应用实践显示,其能为采油厂带来巨大的风险管理效益,是全面落实直线与属地HSE责任的有效载体。对于采油厂有效实施HSE监督检查具有重大意义,是HSE管理制度的一种创新。 相似文献
15.
The inherent risks associated with accidental releases of hazardous materials during transport have drawn attention and concerns in the recent decades. The aim of this study is to propose a tool for evaluation and comparison of the transportation networks which can be used to assess the routing options between origins and destinations of the cargos for their suitability for transporting hazardous material cargos by tanker trucks and to identify routes which provide lower accidental release risks, lower public exposure risks, and offer economical benefits. Each route segment of transportation networks were evaluated using specific criteria which included health risk and cost of delay in case of an accidental release of materials, trucking cost and proximity to vulnerable areas. Since, the health impact of hazardous materials differ depending on the characteristics of the material being transported as well as release quantities and atmospheric conditions; this paper aimed in providing a tool that can be used to estimate the impact radius (for health risks) after accidental release of hazardous materials by taking into account different atmospheric conditions based on the meteorological data and solar elevation angle. The Gaussian air dispersion model paired with ArcGIS using Python programming were employed to estimate the health risk impact zones by considering the meteorological data, and accordingly to analyze road segments for cost impacts (delay and trucking costs), and the proximity to vulnerable areas. The route assessment tool was demonstrated with a case study. The results of this study can efficiently aid decision makers for transportation of hazardous materials. 相似文献
16.
Li Chen Mengshuang Shi Suhuan Li Shuang Gao Hui Zhang Yanling Sun Jian Mao Zhipeng Bai Zhongliang Wang Jiang Zhou 《环境科学学报(英文版)》2017,29(7):33-40
In 2013,China issued "Air Pollution Prevention and Control Action Plan(Action Plan)" to improve air quality.To assess the benefits of this program in Beijing-Tianjin-Hebei(BTH)region,where the density of population and emissions vary greatly,we simulated the air quality benefit based on Ben MAP to satisfy the Action Plan.In this study,we estimate PM_(2.5) concentration using Voronoi spatial interpolation method on a grid with a spatial resolution of 1 × 1 km~2.Combined with the exposure-response function between PM_(2.5) concentration and health endpoints,health effects of PM_(2.5) exposure are analyzed.The economic loss is assessed by using the willingness to pay(WTP) method and human capital(HC) method.When the PM_(2.5) concentration falls by 25% in BTH and reached 60 μg/m~3 in Beijing,the avoiding deaths will be in the range of 3175 to 14051 based on different functions each year.Of the estimated mortality attributable to all causes,3117 annual deaths were due to lung cancer,1924 – 6318 annual deaths were due to cardiovascular,and343 – 1697 annual deaths were due to respiratory.Based on WTP,the estimated monetary values for the avoided cases of all cause mortality,cardiovascular mortality,respiratory mortality and lung cancer ranged from 1110 to 29632,673 to 13325,120 to 3579,1091 to 6574 million yuan,respectively.Based on HC,the corresponding values for the avoided cases of these four mortalities were 267 to 1178,161 to 529,29 to 143 and 261 million yuan,respectively. 相似文献
17.
18.
19.
对GB/T28000《职业健康安全管理体系》系列国家标准的术语和定义进行了对比分析。 相似文献
20.
PROBLEM: The purpose of this study was to examine the relationship between overall risk of injury and time use patterns between work and active recreation among adolescents and young adults. METHODS: Using a representative sample of 9,795 Canadians aged 15-24 years, a multivariate logistic regression on the likelihood of any medically attended injury was conducted, including sociodemographic, individual, and time factors. RESULTS: Young people who engaged in a combination of high work and high activity hours were twice as likely to sustain a medically attended injury compared to those who worked low hours, but did not participate in any recreational activity. Those respondents who were not in school had a 43% increase in injury risk compared to full-time students. SUMMARY: Our findings suggest that injury risk was not a simple function of fatigue and cumulative exposure time. Our findings suggest the importance of considering time use and the associated injury risk tradeoffs. IMPACT ON INDUSTRY: Relevant to state and federal work safety policy makers, our findings suggest the importance of understanding where youth might otherwise spend their time if constraint were placed on their employment opportunities, and the associated injury risk tradeoffs must be taken into consideration. 相似文献