全文获取类型
收费全文 | 453篇 |
免费 | 1篇 |
专业分类
安全科学 | 9篇 |
废物处理 | 36篇 |
环保管理 | 13篇 |
综合类 | 70篇 |
基础理论 | 102篇 |
污染及防治 | 157篇 |
评价与监测 | 53篇 |
社会与环境 | 14篇 |
出版年
2023年 | 6篇 |
2022年 | 18篇 |
2021年 | 12篇 |
2020年 | 5篇 |
2019年 | 9篇 |
2018年 | 21篇 |
2017年 | 18篇 |
2016年 | 30篇 |
2015年 | 14篇 |
2014年 | 33篇 |
2013年 | 63篇 |
2012年 | 28篇 |
2011年 | 31篇 |
2010年 | 28篇 |
2009年 | 20篇 |
2008年 | 9篇 |
2007年 | 13篇 |
2006年 | 13篇 |
2005年 | 4篇 |
2003年 | 3篇 |
2002年 | 4篇 |
2000年 | 2篇 |
1997年 | 2篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1980年 | 2篇 |
1972年 | 1篇 |
1971年 | 2篇 |
1970年 | 6篇 |
1969年 | 2篇 |
1968年 | 1篇 |
1967年 | 4篇 |
1966年 | 3篇 |
1965年 | 2篇 |
1964年 | 1篇 |
1961年 | 1篇 |
1960年 | 4篇 |
1959年 | 4篇 |
1958年 | 10篇 |
1957年 | 4篇 |
1956年 | 3篇 |
1955年 | 1篇 |
1931年 | 1篇 |
1930年 | 1篇 |
排序方式: 共有454条查询结果,搜索用时 31 毫秒
121.
Lazar M. Kaluđerović Zorica P. Tomić Rada D. Đurović-Pejčev Predrag J. Vulić Darko P. Ašanin 《Journal of environmental science and health. Part. B》2017,52(5):291-297
This study was undertaken to determine the impact of the organic complex concentration on the adsorption of herbicide (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification. Cation-exchange capacity of this montmorillonite was determined using a methylene blue method (86 mmol/100 g of clay). Montmorillonite has been modified first with NaCl and then with hexadecyltrimethylammonium bromide (HDTMA-bromide) organic complex. Saturation of cation exchange capacity (CEC) was 50%, 100%, and 150%. Changes in the properties of the inorganic and organic montmorillonite have been examined using the X-ray diffraction, Fourier transform infrared spectroscopy, and batch equilibrium method. Montmorillonite modified with HDTMA-bromide demonstrated higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, it can be seen that the adsorption of acetochlor decreased in the series: 0.5 CEC HM > 1 CEC HM > 1.5 CEC HM > NaM. 相似文献
122.
Radić Danka S. Pavlović Vera P. Lazović Milana M. Jovičić-Petrović Jelena P. Karličić Vera M. Lalević Blažo T. Raičević Vera B. 《Environmental science and pollution research international》2017,24(27):21885-21893
Environmental Science and Pollution Research - Modern, efficient, and cost-effective approach to remediation of heavy metal-contaminated soil is based on the application of microorganisms. In this... 相似文献
123.
The extent of pollution with organotin compounds and Cd, Pb, Ni, Cu, Zn, Cr, Mn, V, Co and Al was investigated in sediments
and mussels (Mytilus galloprovincialis) from the Slovenian costal area of the Northern Adriatic Sea. Sampling was performed in Marina Portorož, Dockyard Izola,
non exposed area of the Bay of Mesečev zaliv and in Mariculture Sečovlje. Mussels were taken in the summer and winter time,
while sediments were collected during the winter sampling. Organotin compounds were determined by gas chromatography—mass
spectrometry and metals by flame or electrothermal atomic absorption spectrometry. The accuracies of the analytical procedures
were checked by the analysis of standard reference materials CRM 477 mussel tissue and PACS 2 marine sediment (organotin compounds)
and SRM 2976 mussel tissue and CRM 320 river sediment (metals). Good agreements between certified and determined values were
obtained. Normalization procedure to Al was applied to estimate the anthropogenic inputs of metals in sediments. The analyses
of sediments demonstrated moderate pollution with organotin compounds in Marina Portorož and in Dockyard Izola. Concentrations
of tributyltin species were higher than those of dibutyltin and monobutyltin. In mussels substantial contamination with tributyltin
was observed in Marina Porotrož and Dockyard Izola. The extent of pollution was higher in the winter time. The analysis of
metals in sediments exhibited elevated concentrations in Marina Portorož and Dockyard Izola. Data from the normalization procedure
indicated the anthropogenic inputs of Cu, Zn and Cr in Marina Portorož and Mn in Bay of Mesečev zaliv and Dockyard Izola.
Mussels, as accumulators of pollutants, in general contained higher metal concentrations during winter time in Dockyard Izola. 相似文献
124.
The effect of earthworms on the fractionation and bioavailability of heavy metals before and after soil remediation 总被引:1,自引:0,他引:1
The effect of two earthworm species, Lumbricus rubellus and Eisenia fetida, on the fractionation/bioavailability of Pb and Zn before and after soil leaching with EDTA was studied. Four leaching steps with total 12.5 mmol kg(-1) EDTA removed 39.8% and 6.1% of Pb and Zn, respectively. EDTA removed Pb from all soil fractions fairly uniformly (assessed using sequential extractions). Zn was mostly present in the chemically inert residual soil fraction, which explains its poor removal. Analysis of earthworm casts and the remainder of the soil indicated that L. rubellus and E. fetida actively regulated soil pH, but did not significantly change Pb and Zn fractionation in non-remediated and remediated soil. However, the bioavailability of Pb (assessed using Ruby's physiologically based extraction test) in E. fetida casts was significantly higher than in the bulk of the soil. In remediated soil the Pb bioavailability in the simulated stomach phase increased by 5.1 times. 相似文献
125.
126.
Irena Ciglenečki Srđan Pichler Esad Prohić Božena Ćosović 《Water, Air, & Soil Pollution: Focus》2006,6(5-6):537-545
Geochemical, mineralogical and sedimentological analyses were carried out to contrast two different sites (respectively characterized
by permanently oxic and anoxic conditions) in a small, meromictic, seawater lake. In fact, due to relatively high organic
matter content, and reduced water exchange, the Rogoznica Lake has almost permanent anoxic conditions below the depth of 12 m,
where sediment can be considered an anoxic–sulphidic sedimentary environment. Different water column and sediments redox conditions
affect the distribution and speciation of major redox-sensitive metals (Fe, Mn, Mo), reduced sulphur species (RSS) and dissolved
organic C (DOC). Trace metals, especially those that accumulate in anoxic–sulphidic environments (Fe, Mo) showed a marked
enrichment in the solid phase, whereas the low solubility of sulphides leads to low porewater concentrations. The relatively
high sedimentary enrichment of Mo (up to 81 mg/kg) also confirms highly anoxic conditions within the Rogoznica Lake sediments.
Results clearly show that chemical species within the sediments will tend towards equilibrium between porewater and solid
phase according the prevailing environment conditions such as redox, pH, salinity, DOC. 相似文献
127.
128.
129.
130.