全文获取类型
收费全文 | 158篇 |
免费 | 2篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 17篇 |
环保管理 | 23篇 |
综合类 | 14篇 |
基础理论 | 18篇 |
环境理论 | 1篇 |
污染及防治 | 56篇 |
评价与监测 | 19篇 |
社会与环境 | 13篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 5篇 |
2022年 | 34篇 |
2021年 | 12篇 |
2020年 | 2篇 |
2019年 | 8篇 |
2018年 | 7篇 |
2017年 | 10篇 |
2016年 | 9篇 |
2014年 | 9篇 |
2013年 | 9篇 |
2012年 | 5篇 |
2011年 | 12篇 |
2010年 | 8篇 |
2009年 | 9篇 |
2008年 | 3篇 |
2007年 | 3篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2004年 | 4篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1984年 | 1篇 |
排序方式: 共有165条查询结果,搜索用时 15 毫秒
81.
Md. Raihanul Islam Sumaiya Akter Ruponti Md. Abdur Rakib Huy Quoc Nguyen Monjur Mourshed 《Frontiers of Environmental Science & Engineering》2023,17(6):66
82.
Md. Rayhan Ali Shahin Mahmud Md. Tarikul Islam Md. Nur-E-Alam Md. Tarek Molla Ramisa Binti Mohiuddin Kaisar Ali Talukder Suhaimi Napis Kamal Chowdhury A. K. M. Mohiuddin 《环境质量管理》2023,33(1):473-486
Cities in Bangladesh produce large amounts of solid waste (SW) through various human activities which severely pollutes our native environment. As a result, SW pollutes the three basic environmental elements (air, water, and soil) by increasing pathogenic microbial load, which might be hazardous to public health directly or indirectly. In this study, we conducted 30 samples (i.e., soil, water, and air) collected from areas where municipal solid wastes are dumped (Tangail Sadar Upazila, Bangladesh). All the samples were analyzed to assess bacteriological quality for presumptive viable and coliform count using different agar media. We performed serial dilution 10−3–10−10 times for soil and water samples, and the diluted samples were spread on Mac-Conkey agar and nutrient agar plates. For the air sample, the sterile media containing petri-dish was placed adjacent to the dumpsite of the municipal waste and kept for an hour. Then all the samples were incubated at 37°C overnight for total viable count (TVC) and total coliform count (TCC). Biochemical tests and PCR were performed for the identification of these microorganisms. The antibiogram study was performed to reveal their (identified bacteria) susceptibility against clinically used antibiotics according to the standard disk diffusion technique. The highest bacterial loads were found in the air: TVC 3.273 × 103 and TCC 1.059 × 103 CFU/plate; tube-well water: TVC 8.609 × 103, and TCC 8.317 × 103 CFU/mL; in surface water: TVC 6.24 × 1013 CFU/mL and TCC 2.2 × 1012 CFU/mL; in soil: TVC 2.88 × 1011 and TCC 1.02 × 1011 CFU/g, respectively. Microbes from SW can be transmitted through air, dust particles, or flies, and here we found an average of 1120 microbes spread over 63.61 cm2 area per hour. Eight bacterial isolates (Pseudomonas spp., Klebsiella spp., E. coli, Proteus spp., V. cholera, Salmonella spp., Shigella spp., and Vibrio spp.) were identified by the biochemical test. Among them, E. coli and Shigella spp. were further ensured by PCR targeting bfpA and ipaH genes. Antibiotic susceptibility test results showed that E. coli isolates were highly resistant to erythromycin (80%); Shigella spp. were resistant to nalidixic acid (90%), whereas Salmonella spp. was found resistant to kanamycin (90%). Vibrio spp. were also resistant to azithromycin (80%) and erythromycin (80%), which should be a great concern for us. A semi-structured survey revealed that 63% of respondents suffered from different clinical conditions (intestinal diseases) due to SW pollution. So, steps should be taken to improve the proper management and disposal of solid waste and liquid effluent to save our environment and public health. 相似文献
83.
Imran Muhammad Islam Azhar Ul Tariq Muhammad Adnan Siddique Muhammad Hussnain Shah Noor Samad Khan Zia Ul Haq Amjad Muhammad Din Salah Ud Shah Ghulam Mustafa Naeem Muhammad Asif Nadeem Muhammad Nawaz Muhammad Rizwan Muhammad 《Environmental science and pollution research international》2019,26(24):24489-24502
Environmental Science and Pollution Research - The present study aims at evaluating the batch scale potential of cotton shell powder (CSP), Moringa oleifera leaves (ML), and magnetite-assisted... 相似文献
84.
Das Debasish Kumar Islam Md. Sariful Hadiujjaman Sheikh Dutta Champa Bati Morshed Md. Manjur 《Environmental Economics and Policy Studies》2019,21(3):371-397
Environmental Economics and Policy Studies - This study estimates health cost of salinity contamination in drinking water in the severe salinity affected three south-western districts of... 相似文献
85.
van Soesbergen Arnout Arnell Andrew P. Sassen Marieke Stuch Benjamin Schaldach Rüdiger Göpel Jan Vervoort Joost Mason-D’Croz Daniel Islam Shahnila Palazzo Amanda 《Regional Environmental Change》2017,17(5):1409-1420
Regional Environmental Change - Competition for land is increasing as a consequence of the growing demands for food and other commodities and the need to conserve biodiversity and ecosystem... 相似文献
86.
Md. Saiful Islam Md. Kawser Ahmed Md. Habibullah-Al-Mamun Dennis Wayne Eaton 《The Environmentalist》2017,37(3):344-352
The most consumed food samples of cereals (rice, maize and wheat), vegetables (lentil, brinjal, carrot, bean, potato, tomato, onion and chili), fruits (banana, mango and jackfruit), fish (taki, rui, pangas and tilapia), egg (chicken and duck), milk (cow) and meat (chicken, duck, beef and mutton) were collected from some markets of Bogra district northern part of Bangladesh to evaluate the levels of arsenic (As) and associated health risk to the adult’s and child inhabitants. Arsenic is a highly toxic element, and its presence in food composites is a matter of concern to the world scientists. Target hazard quotients (THQs) and target carcinogenic risk were calculated to evaluate the non-carcinogenic and carcinogenic health risk from ingested arsenic. The highest and the lowest mean concentrations of arsenic were noted in the Tilapia fish [(0.94 mg/kg, wet weight (ww)] and beef (0.012 mg/kg, ww). The daily intakes of arsenic via foodstuffs were 1.92 and 3.30 µg/kg-bw/day for rural adults and children and 1.69 and 3.04 µg/kg-bw/day for urban adults and children, respectively. The result shows the highest THQs of arsenic in cereals and vegetables for both the rural and urban inhabitants which exceed the safe limit (>1) indicating that cereals and vegetables are the main food items contributing to the potential health risk. The estimated target cancer risks from ingesting dietary arsenic all exceeded 10?6, indicating increased risk of cancer for adults and children in the study area. 相似文献
87.
Optimizing booster chlorination in water distribution networks: a water quality index approach 总被引:1,自引:0,他引:1
Nilufar Islam Rehan Sadiq Manuel J. Rodriguez 《Environmental monitoring and assessment》2013,185(10):8035-8050
The optimization of chlorine dosage and the number of booster locations is an important aspect of water quality management in distribution networks. Booster chlorination helps to maintain uniformity and adequacy of free residual chlorine concentration, essential for safeguarding against microbiological contamination. Higher chlorine dosages increase free residual chlorine concentration but generate harmful by-products, in addition to taste and odor complaints. It is possible to address these microbial, chemical, and aesthetic water quality issues through free residual chlorine concentration. Estimating a water quality index (WQI) based on regulatory chlorine thresholds for microbial, chemical, and aesthetics criteria can help engineers make intelligent decisions. An innovative scheme for maintaining adequate residual chlorine with optimal chlorine dosages and numbers of booster locations was established based on a proposed WQI. The City of Kelowna (BC, Canada) water distribution network served to demonstrate the application of the proposed scheme. Temporal free residual chlorine concentration predicted with EPANET software was used to estimate the WQI, later coupled with an optimization scheme. Preliminary temporal and spatial analyses identified critical zones (relatively poor water quality) in the distribution network. The model may also prove useful for small or rural communities where free residual chlorine is considered as the only water quality criterion. 相似文献
88.
Aminul Islam Noushi Zaidi Hilal Ahmad Sudesh Yadav 《Environmental monitoring and assessment》2014,186(9):5843-5853
A procedure is detailed for the selective analysis of trace aluminum by flame atomic absorption spectrophotometer coupled with off-line column separation and preconcentration. Chelating resin was synthesized by covalent functionalization of Amberlite XAD-16 by 2-(2-hydroxyphenyl) benzoxazole. The modified resin was characterized using FT-IR spectroscopy, energy dispersive x-ray analysis, elemental analysis, thermogravimetric analysis/differential thermal analysis, and minimum energy run. The optimum sorption was at pH 9?±?0.1 with corresponding t 1/2 of only 7 min. Many competitive anions and cations studied did not interfere at all in the selective determination of Al(III), at the optimized conditions. The resin shows maximum sorption capacity of 21.58 mg g?1 and can be regenerated up to 75 cycles without any discernible capacity loss. The Langmuir isotherm model provides the better correlation of the experimental data (r 2?=?0.999) in comparison to Freundlich isotherm model, while the Scatchard analysis revealed homogeneous binding sites in the chelating resin. Analytical figures of merit were evaluated by accuracy (standard reference materials and recovery experiment), precision (RSD <5 %), and detection limit (2.8 μg L?1). The applicability was demonstrated by analysis of trace aluminum in biological, environmental, and food samples. 相似文献
89.
Nasreen Islam Khan Gary Owens David Bruce Ravi Naidu 《Environmental geochemistry and health》2009,31(Z1):207-220
Groundwater contaminated with arsenic (As), when extensively used for irrigation, causes potentially long term detrimental
effects to the landscape. Such contamination can also directly affect human health when irrigated crops are primarily used
for human consumption. Therefore, a large number of humans are potentially at risk worldwide due to daily As exposure. Numerous
previous studies have been severely limited by small sample sizes which are not reliably extrapolated to large populations
or landscapes. Human As exposure and risk assessment are no longer simple assessments limited to a few food samples from a
small area. The focus of more recent studies has been to perform risk assessment at the landscape level involving the use
of biomarkers to identify and quantify appropriate health problems and large surveys of human dietary patterns, supported
by analytical testing of food, to quantify exposure. This approach generates large amounts of data from a wide variety of
sources and geographic information system (GIS) techniques have been used widely to integrate the various spatial, demographic,
social, field, and laboratory measured datasets. With the current worldwide shift in emphasis from qualitative to quantitative
risk assessment, it is likely that future research efforts will be directed towards the integration of GIS, statistics, chemistry,
and other dynamic models within a common platform to quantify human health risk at the landscape level. In this paper we review
the present and likely future trends of human As exposure and GIS application in risk assessment at the landscape level. 相似文献
90.
Ahmed MK Habibullah-Al-Mamun M Hossain MA Arif M Parvin E Akter MS Khan MS Islam MM 《Chemosphere》2011,84(1):143-149
This experiment was conducted to study the genotoxic potentials of sodium arsenite (NaAsO2) in freshwater fish Oreochromis mossambicus by using alkaline comet assay and micronucleus (MN) test. Fish were exposed to three different concentrations (3 ppm, 28 ppm and 56 ppm) of arsenic and gill, liver and blood tissue samples were collected after 48 h, 96 h and 192 h of exposure. Arsenic exposure induced DNA damage in all tissues examined in a concentration dependent manner. A significant (p < 0.05) increase in the comet tail DNA (%) of the exposed fish liver, gill, and blood was observed after 48 h and 96 h of exposure, but a decline in DNA damage was recorded in all the tissues at all the three concentrations studied after 192 h of exposure. Liver tissue exhibited significantly (p < 0.05) higher DNA damage at all the concentrations examined, followed by gill and blood. Higher liver tail DNA (51.38 ± 0.21%) refers that it is more prone to injury to arsenic toxicity than the gill and blood. In blood samples arsenic induced micronucleus formation in a concentration dependent manner and highest (5.8 ± 0.46%) value was recorded in 56 ppm after 96 h of exposure, whereas, it was decreased after 192 h of exposure at all the three concentrations of NaAsO2 examined which refers to the DNA repairing ability of fish to arsenic toxicity. The results of this study depict the genotoxic potentials of arsenic to fish which in turns provide insight on advanced study in aquatic toxicology. 相似文献