全文获取类型
收费全文 | 738篇 |
免费 | 9篇 |
国内免费 | 23篇 |
专业分类
安全科学 | 35篇 |
废物处理 | 76篇 |
环保管理 | 69篇 |
综合类 | 52篇 |
基础理论 | 130篇 |
环境理论 | 1篇 |
污染及防治 | 246篇 |
评价与监测 | 120篇 |
社会与环境 | 36篇 |
灾害及防治 | 5篇 |
出版年
2023年 | 12篇 |
2022年 | 90篇 |
2021年 | 71篇 |
2020年 | 16篇 |
2019年 | 31篇 |
2018年 | 36篇 |
2017年 | 44篇 |
2016年 | 48篇 |
2015年 | 34篇 |
2014年 | 40篇 |
2013年 | 98篇 |
2012年 | 39篇 |
2011年 | 50篇 |
2010年 | 22篇 |
2009年 | 33篇 |
2008年 | 17篇 |
2007年 | 19篇 |
2006年 | 11篇 |
2005年 | 8篇 |
2004年 | 9篇 |
2003年 | 5篇 |
2002年 | 4篇 |
2001年 | 2篇 |
1999年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 1篇 |
1979年 | 4篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1973年 | 1篇 |
1969年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有770条查询结果,搜索用时 0 毫秒
101.
Nammam Ali Azadi Borhan Mansouri Lucia Spada Mohammad Hosein Sinkakarimi Younes Hamesadeghi 《Chemistry and Ecology》2018,34(9):884-900
Coastal areas of Iran are heavily affected by urbanisation, industrialisation, and maritime activities. One consequence of this environmental pressure is the contaminants accumulation, as heavy metals, into the marine ecosystem. In this review, the coastal areas in the north and south of the country were assessed for lead (Pb) contamination of, one of the most toxic metals found in the environment. All studies conducted during 2006–2016 with at least 10 specimens that reported the mean and standard deviation of Pb were considered in this review. Heterogeneity between studies was assessed using the Q and I2 statistics. The Pb mean concentration overall studies was estimated to be 21.88?µg/g (95% CIs: 16.25–27.50). Random effect model showed no statistical difference in mean Pb concentration levels between south and north coasts. However, the variability in Pb mean concentrations within southern coasts was considerable and statistically significant. Moreover, the Pb concentrations in the northern coasts of Persian Gulf and Oman Sea, in south of Iran, decreased in the following order Hormozgan > Khuzestan > Sistan-VA-Balluchestan > Bushehr while in the southern coasts of Caspian Sea, in north of Iran, decreased in the order Guilan > Mazandaran > Golestan. 相似文献
102.
Zakaria Al-Qodah Mohammad Al-Shannag Khalid Bani-Melhem Eman Assirey Mohd Adib Yahya Ali Al-Shawabkeh 《Environmental Chemistry Letters》2018,16(3):695-714
The combination of electrocoagulation with another process is a promising approach to enhance the removal efficiency of water pollutants. For instance, free radical-assisted electrocoagulation is a new combination showing higher performance. There are different combinations depending on the free radical source. This article reviews free radical-assisted electrocoagulation processes. We discuss electrocoagulation mechanisms; ozone-assisted electrocoagulation processes; advanced oxidation-assisted electrocoagulation processes; and ultrasound-assisted electrocoagulation. We present kinetic models used in free radical-assisted electrocoagulation, scale-up of free radical-assisted electrocoagulation and cost estimation. The major points are: most of the available studies have been done at laboratory scale with synthetic wastewater, and lack holistic and systematic approaches to consider the process complexity. The performance of the combined process is improved, and the removal efficiency is increased especially with ozone-assisted electrocoagulation, which gives a removal efficiency of more than 95%. The use of ultrasound energy with electrocoagulation is advantageous in reducing the problem of electrode passivation. 相似文献
103.
Gholizadeh Abdolmajid Salmani Mohammad Hossein Ebrahimi Ali Asghar Hosseini Saeede Sadat Ehrampoush Mohammad Hassan Miri Mohammad Nikoonahad Ali Pasalari Hassan 《Environmental Chemistry Letters》2018,16(4):1477-1485
Environmental Chemistry Letters - Microbial desalination cells are promising bio-electrochemical technologies for water desalination, treating wastewater and bioelectricity production. In this... 相似文献
104.
Loganathan Tamil Moli Sultan Mohamed Thariq Hameed Ahsan Qumrul Shah Ain Umaira Md Jawaid Mohammad Talib Abd. Rahim Abu Basri Adi Azriff 《Journal of Polymers and the Environment》2021,29(11):3703-3720
Journal of Polymers and the Environment - The aim of this study is to investigate the effect of fiber length and loading on physico-mechanical and flammability properties of Cyrtostachys renda (CR)... 相似文献
105.
Mohammad Muhshin Aziz Khan Zaheed Ibne Halim Mohammad Iqbal 《International journal of occupational safety and ergonomics》2013,19(3):327-341
Case-study research was carried out with a view to find the attributes of occupational injury among workers in the chemical industry and to enhance safety issues. Injury data were collected and processed in terms of different variables, such as age, gender, skills, type of hazard, etc. Pareto analysis was then applied to find a pattern of occupational injury among the workers. The study revealed that 79.52% of the injured workers were in the 40–59 age group; 57.14% of accidents occurred during the 1st shift; 73.26% of accidents caused injury to hands, feet, chest to thigh, arms and eyes; and 70.93% of injuries were caused by pumps, carrying and lifting, vehicles, pipelines, valves, and grinding. Surprisingly, no one was injured in the group of temporary workers. The paper also provides specific suggestions followed by some action plans. 相似文献
106.
Mohammad Aslam Khan S. Akhtar Ali Shah 《Journal of Agricultural and Environmental Ethics》2011,24(5):493-509
There is evidence of continued food insecurity and malnutrition in Pakistan despite significant progress made in terms of
food production in recent years. According to “Vision 2030” of the Planning Commission of Pakistan, about half of the population
in the country suffers from absolute to moderate malnutrition, with the most vulnerable being children, women, and elderly
among the lowest income group. The Government of Pakistan has been taking a series of policy initiatives and strategic measures
to combat food insecurity issues. These range from increasing production to food imports, implementation of poverty reduction
strategies, nutritional improvement programs, as well as provision of social safety nets. The article aims to instill some
fresh thinking into the debate regarding the challenges of food security. It underscores the limitations of hitherto policy
response, and suggests crucial measures to improve the present grim scenario. Policy makers, planners, practitioners, and
academicians in countries with comparable socio-political and economic setup can view this discussion as a case study and
may apply the findings in their domain accordingly. 相似文献
107.
Mohammad Zubair Alam Shamim Ahmad Abdul Malik 《Environmental monitoring and assessment》2011,178(1-4):281-291
In the present study, a total of 198 bacteria were isolated, 88 from the tannery effluents and 110 from agricultural soil irrigated with the tannery effluents. Tannery effluents and soils were analyzed for metal concentrations by atomic absorption spectrophotometer. The tannery effluents and soil samples were found to be contaminated with chromium, nickel, zinc, copper, and cadmium. All isolates were tested for their resistance against Cr6?+?, Cr3?+?, Ni2?+?, Zn2?+?, Cu2?+?, Cd2?+?, and Hg2?+?. From the total of 198 isolates, maximum bacterial isolates were found to be resistant to Cr6?+? 178 (89.9%) followed by Cr3?+? 146 (73.7%), Cd2?+? 86 (43.4%), Zn2?+? 83 (41.9%), Ni2?+? 61 (30.8%), and Cu2?+? 51 (25.6%). However, most of the isolates were sensitive to Hg2?+?. Among the isolates from tannery effluents, 97.8% were resistant to Cr6?+? and 64.8% were resistant to Cr3?+?. Most of the soil isolates were resistant against Cr6?+? (83.6%) and Cr3?+? (81.8%). All isolates were categorized into Gram-positive and Gram-negative bacteria. In a total of 114 Gram-positive isolates, 91.2% were resistant to Cr6?+? followed by 73.7% to Cr3?+?, 42.1% to Zn2?+?, 40.4% to Cd2?+?, and 32.5% to Ni2?+?. Among Gram-negative isolates, 88.1% were found showing resistance to Cr6?+?, 75.0% to Cr3?+?, and 47.6% were resistant to Cd2?+?. Majority of these metal-resistant isolates were surprisingly found sensitive to the ten commonly used antibiotics. Out of 198 isolates, 114 were found sensitive to all antibiotics whereas only two isolates were resistant to maximum eight antibiotics at a time. Forty-one and 40 isolates which constitute 20.7% and 20.2% were resistant to methicilin and amoxicillin, respectively. 相似文献
108.
Azizian MF Nelson PO Thayumanavan P Williamson KJ 《Waste management (New York, N.Y.)》2003,23(8):719-728
The practice of incorporating certain waste products into highway construction and repair materials (CRMs) has become more popular. These practices have prompted the National Academy of Science, National Cooperative Highway Research Program (NCHRP) to research the possible impacts of these CRMs on the quality of surface and ground waters. State department of transportations (DOTs) are currently experimenting with use of ground tire rubber ( crumb rubber) in bituminous construction and as a crack sealer. Crumb rubber asphalt concrete (CR-AC) leachates contain a mixture of organic and metallic contaminants. Benzothiazole and 2(3H)-benzothiazolone (organic compounds used in tire rubber manufacturing) and the metals mercury and aluminum were leached in potentially harmful concentrations (exceeding toxic concentrations for aquatic toxicity tests). CR-AC leachate exhibited moderate to high toxicity for algae ( Selenastrum capriconutum) and moderate toxicity for water fleas ( Daphnia magna). Benzothiazole was readily removed from CR-AC leachate by the environmental processes of soil sorption, volatilization, and biodegradation. Metals, which do not volatilize or photochemically or biologically degrade, were removed from the leachate by soil sorption. Contaminants from CR-AC leachates are thus degraded or retarded in their transport through nearby soils and ground waters. 相似文献
109.
Ahmed Mukhtar Abdullah Anas Patle Dipesh S. Shahadat Mohammad Ahmad Zainal Athar Moina Aslam Mohammad Vo Dai-Viet N. 《Environmental Chemistry Letters》2022,20(1):335-378
Environmental Chemistry Letters - Biodiesel is a sustainable alternative to petroleum diesel. The main bottlenecks in the commercialization of biodiesel are production costs and suitable industrial... 相似文献
110.
Esfanjani Pouya Jahangiri Sajjad Heidarian Ali Valipour Mohammad Sadegh Rashidi Saman 《Environmental science and pollution research international》2022,29(28):42616-42646
Environmental Science and Pollution Research - Solar energy is the most sustainable and free source to manage the world energy demand. One aspect of solar-driven energy supply can be observed in... 相似文献