全文获取类型
收费全文 | 125篇 |
免费 | 4篇 |
国内免费 | 20篇 |
专业分类
安全科学 | 14篇 |
废物处理 | 2篇 |
环保管理 | 7篇 |
综合类 | 63篇 |
基础理论 | 10篇 |
污染及防治 | 38篇 |
评价与监测 | 13篇 |
社会与环境 | 2篇 |
出版年
2022年 | 2篇 |
2020年 | 4篇 |
2018年 | 3篇 |
2017年 | 5篇 |
2016年 | 1篇 |
2015年 | 2篇 |
2014年 | 7篇 |
2013年 | 27篇 |
2012年 | 2篇 |
2011年 | 9篇 |
2010年 | 1篇 |
2009年 | 4篇 |
2008年 | 11篇 |
2007年 | 19篇 |
2006年 | 9篇 |
2005年 | 7篇 |
2004年 | 4篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 4篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1992年 | 2篇 |
排序方式: 共有149条查询结果,搜索用时 46 毫秒
1.
Muhammed Siddik Abdul Samad Prem Mohan Irfan Khursheed Shah Babu J. Alappat 《Environmental Forensics》2020,21(1):37-47
AbstractCement manufacturing is a process that results in the emission of significant quantities of suspended particulate matter (SPM) to the ambient air. An environmental forensic investigation was carried out in the surroundings of a major cement manufacturing unit at a place called Coimbatore in the southern Indian state of Tamil Nadu. The investigation was carried out to identify the contribution of the cement manufacturing unit to the SPM concentration of the surrounding air environment. The sampling points’ selection and sample collection were done following the principles outlined in the INTERPOL Manual for Pollution Crime Forensic Investigation. On-site monitoring of the air samples was carried out using Mini Laser Aerosol Spectrometer (GRIMM, Mini-LAS Model 11R). The instrument was capable of measuring particles ranging from 0.25 to 32 µm and classifying them into 31 size channels. The test results at majority of the monitoring locations were well above the limits specified in the National Ambient Air Quality Standards of India. Microscopic studies of the dust samples were carried out for surface texture and particle shape. The spatial distribution of particles was analysed using geographic information system (GIS) for the visual identification of the extent of the pollution by keeping the cement factory as the focal point. The results from the GIS and microscopic analysis established the role of the cement factory in the particulate matter pollution of its surroundings, specifically in the areas North-West of the factory. The successfully adopted procedure can serve as a guideline for the environmental forensic investigation of similar pollution incidences. 相似文献
2.
传统有机磷、有机氯农药具有高毒性、持久性和环境激素效应,处于痕量和超痕量浓度水平都可能给人类生命健康和生态环境带来严重威胁和风险。由于农药及其副产物的历史残留、累积及跨界迁移和分布,农药厂搬迁厂址用于房地产开发场地环评具有很大困难。结合南方某市一大型农药厂搬迁厂址用于房地产开发项目的案例,探讨了该类场地评价中基础资料的搜集方法和环评中应遵循的理念和原则。 相似文献
3.
4.
介绍采用混凝技术大规模处理运河污水时所遇到的一些问题,以及一些生产经验,提出在设施、设备及工艺方面的相应解决办法。强调设备维护、员工技能和管理机制在生产中的重要性,提出科学地进行设备日常维护的方法。通过小试验,提出对东莞运河水污染治理的一点设想,并解释工程中混凝反应需要足够搅拌力度的问题。 相似文献
5.
6.
7.
吴关林 《安全.健康和环境》2014,14(9):18-20
研究了净化厂新型延长型接地排在内的仪表接地体系,分析了现场装置仪表接地存在的问题,提出了抗干扰屏蔽接地、现场浪涌保护器防雷接地、DCS接地规范安装和现场工程师站接地电阻检查测量等方面的整改措施。 相似文献
8.
In China, although improvements to the pesticide registration process have beenmade in last thirty years, no occupational exposure data are required to obtain a commercial license for a pesticide product. Consequently, notably little research has been conducted to establish an exposure assessment procedure in China. The present study monitored the potential dermal operator exposure from knapsack electric sprayer wheat field application of imidacloprid in Liaocheng City, Shandong Province and in Xinxiang City, Henan Province, China, using whole-body dosimetry. The potential inhalation exposure was determined using a personal air pump and XAD-2 sample tubes. The analytical method was developed and validated, including such performance parameters as limits of detection and quantification, linear range, recovery and precision. The total potential dermal and inhalation exposures were 14.20, 16.80, 15.39 and 20.78 mL/hr, respectively, for the four operators in Liaocheng and Xinxiang, corresponding to 0.02% to 0.03% of the applied volume of spray solution. In all trials, the lower part (thigh, lower leg) of the body was the most contaminated, accounting for approximately 76% to 88% of the total exposure. The inhalation exposure was less than 1% of the total exposure. Such factors as the application pattern, crop type, spray equipment, operator experience and climatic conditions have been used to explain the exposure distribution over the different parts of the body. As indicated by the calculated Margin of Exposure, the typical wheat treatment scenarios when a backpack sprayer was used are considered to be safe in terms of imidacloprid exposure. 相似文献
9.
典型酿造业厂界无组织排放VOCs污染特征与风险评价 总被引:3,自引:2,他引:1
为探明酿造企业厂界无组织排放VOCs的浓度特征、恶臭污染及健康风险,采用便携式气相色谱-质谱仪对典型酿造企业醋厂和酒厂厂界无组织排放VOCs进行监测,分析研究其VOCs的浓度水平和组成特征,采用阈稀释倍数和感官测定法对VOCs进行恶臭分析,并进行了健康风险评价.结果表明,醋厂和酒厂厂界无组织排放VOCs的总浓度分别为0.968 mg·m~(-3)和0.293 mg·m~(-3).醋厂排放的VOCs中乙酸乙酯和乙酸含量较高,分别占总VOCs的76.3%和13.5%.酒厂排放的VOCs中以乙醇和己酸乙酯为主,分别占总VOCs的56.3%和30.4%.含氧VOCs是酿造企业污染源排放的主要组分.两厂总恶臭指数均大于1,表明其无组织VOCs排放对大气环境存在恶臭污染,且其臭气浓度均超过恶臭污染物厂界标准限值.醋厂和酒厂VOCs致癌风险指数分别为2.45×10~(-6)和5.25×10~(-6),超过了EPA致癌风险值(1.0×10~(-6)),但未超过OSHA致癌风险值(1.0×10~(-3))_及ICRP最大可接受的风险值(5.0×10~(-5)). 相似文献
10.
Shahbeg S. Sandhu Michael D. Waters 《Journal of environmental science and health. Part. B》2013,48(6):929-948
Abstract Over the last few decades, the use of chemical pesticides has increased dramatically in the U.S. This relatively sudden increase greatly concerns the U.S. Environmental Protection Agency (EPA), since it has the responsibility for ensuring the safety of all pesticides used in the U.S. In response to this concern, EPA has established a review program, the Rebuttable Presumption Against Registration (RPAR), for periodically reassessing the mutagenic and carcinogenic potential of pesticide compounds. This paper presents a review and evaluation of the data reported in the literature on six chemical pesticides suspect for mutagenic potential. The pesticide chemicals discussed are maleic hydrazide; rotenone; monuron; diallate; triallate, and benomyl. 相似文献