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441.
Gillenwater PS Urgun-Demirtas M Negri MC Alvarado J 《Journal of environmental monitoring : JEM》2012,14(1):27-29
In order to compare treatability test results evaluating low-level mercury (Hg) removal from oil refinery wastewater, improvements in Hg analytical methods were conducted at two US EPA certified analytical labs. The revisions in the analytical protocols improved Hg recoveries and hence enabled more reliable data interpretation and comparison for the specific wastewater tested. Nevertheless, significant differences between results from the two laboratories were identified in a split-sample experiment. 相似文献
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Sabrina Battisti Carlo Boselli Alessandro Ubaldi Cristina Roffi Isabelli Tabita Mauti Ugo Della Marta Paola Scaramozzino 《Environmental science and pollution research international》2017,24(26):20876-20882
Vegetables play an important role in the human diet, and the transfer of toxic contaminants from the soil to plants has been little studied for most tree species and their edible portions. In an area affected by hexachlorocyclohexane (HCH) contamination, in the Sacco River Valley (central Italy), measurements of β- and α-HCH isomers were made on different parts of two tree species: Juglans regia and Prunus spinosa. Concentrations were analysed in roots, branches, leaves, fruits, and seeds. A spatial evaluation of the results highlighted an inverse association of contamination with distance from the river, which is the main route of transport in the environment. Results in J. regia showed decreasing values in this order: branches > leaves > husks > nutmeat. Results in P. spinosa showed decreasing values in the following order: branches > leaves > fruits. In J. regia, nutmeat values were all below limit of detection (LOD, 0.0005 mg/kg), except in one case in which a very low concentration of β-HCH was found (0.006 mg/Kg), compliant with maximum residue limits (MRLs). The ability of J. regia to store large quantities of β-HCH in wooden and leafy parts but not in edible kernels makes this plant a potential and precious tool in remediation and economical reconversion of polluted areas. It is also valuable for food and wood manufacturing. 相似文献
445.
Noise produces multiple effects on ecosystems and it influences habitat use by vertebrates near roads. Thus, it may reduce
the effectiveness of mitigation measures installed on roads to alleviate population fragmentation. This study analyses the
effects of noise on the use by vertebrates of 19 underpasses at a motorway. It employs generalised linear models to test the
effect of three noise indicators at the underpasses and in their vicinity on the crossing frequency of eight animal species.
The results show that the road crossings are subjected to high and variable noise levels. Nevertheless, there is no consistent
response to noise by vertebrates. This suggests that wildlife use of underpasses is determined more by habitat characteristics
than by the levels of noise tolerated. The conclusion is that noise abatement measures on roads in areas of faunal sensitivity
should focus on general noise reduction rather than on making individual crossing places quieter. 相似文献
446.
Concetta Federico Cristina Palmieri Anna Maria Pappalardo Venera Ferrito Matteo Pappalardo Vito Librando Salvatore Saccone 《Environmental science and pollution research international》2016,23(17):17018-17025
Agricultural practices are usually supported by several chemical substances, such as herbicides. Linuron and chlorbromuron are phenylurea herbicides largely used to protect crops from weeds, blocking photosynthesis by inhibition of the photosystem II complex. The former, also commercially known as lorox or afalon, is selectively used to protect bean and French bean plants, fennels, and celeriacs; the second, commercially known as maloran, is selectively used for carrots, peas, potatoes, soy sprouts, and sunflowers. Considering the widespread use of herbicides and, more generally, pesticides, it is important to clarify their involvement on human health, one of them concerning the possible direct or indirect effect on the genome of exposed populations. Here, we show that these herbicides are endowed by mutagenic properties, as demonstrated by an increased number of chromosomal aberrations (CAs) in two exposed Chinese hamster cell lines derived from ovary and epithelial liver, respectively. This was also confirmed by sister chromatid exchange (SCE) and micronucleus (MN) assays. Our present and previously obtained data clearly indicate that phenylurea herbicides must be used with great caution, especially for agricultural workers who use large amounts of herbicides during their work, and particular attention should be given to residues of these herbicides and their involvement in environmental pollution. 相似文献
447.
Dayana Moscardi dos Santos Gustavo Souza Santos Marta Margarete Cestari Ciro Alberto de Oliveira Ribeiro Helena Cristina Silva de Assis Flavia Yamamoto Izonete Cristina Guiloski Mary Rosa Rodrigues de Marchi Rosalinda Carmela Montone 《Environmental science and pollution research international》2014,21(4):3166-3174
The toxicity of butyltin compounds (BTs), mainly tributyltin (TBT), has been reported in different organisms. However, such an analysis in fish after field exposure with reference to the related biomarkers has not been commonly observed in the literature. This study presents the uptake of BTs in the liver of a neotropical marine catfish Cathorops spixii in Paranagua Bay, an important estuarine system located in southern Brazil. Two different areas, close to and distant from the harbor, were used for chemical analysis evaluation of hepatotoxicity through genetic, enzymatic, and histopathological biomarkers. The presence of polycyclic aromatic hydrocarbons in bile was also considered as a biomarker. The results showed a significant relationship between TBT levels and the inhibition of biotransformation enzymes and high occurrence of melanomacrophages in fish collected close to the harbor site. These effects were linked to the absence of TBT metabolites in the liver. In the second site, the presence of DBT was associated with an increase in EROD and GST activity. The larger amount of DNA damage as well as the highest oxidative stress was noted in fish from the less TBT-polluted area, where DBT and bile PAHs occurred. These findings showed different impact levels due to or increased by the chronic exposure of biota to BTs. 相似文献
448.
Antonella Di Leo Cristina Annicchiarico Nicola Cardellicchio Santina Giandomenico Michele Conversano Giacomo Castellano Fabrizio Basile Walter Martinelli Giampiero Scortichini Lucia Spada 《Environmental science and pollution research international》2014,21(23):13196-13207
The levels and specific profiles of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in Mytilus galloprovincialis from the Mar Grande and the Mar Piccolo of Taranto were determined during the extensive monitoring plan of Local Health Authority to assess PCDD/Fs and DL-PCBs contamination in food and farm products, within 20 km from the industrial areas of Taranto, between March and December 2011. The average Total Toxicity Equivalence (TEQ) values for the sum of PCDD/F and DL-PCBs ranged from 1.61 to 5.63 pg WHO2005-TEQ g?1 wet weight basis, with the highest in the first inlet of the Mar Piccolo. In particular, DL-PCBs were the dominant chemicals in all samples, followed by PCDFs and PCDDs. Congener patterns in mussels were similar, indicating a homogeneous behavior in studied areas and, probably, the same type of source. The seasonal concentrations trend showed a relevant increase of dioxin and dioxin-like PCBs TEQs during the summer months, exceeding the limits set by the European Community for food and foodstuff. Reducing PCDD/Fs and PCBs is necessary to decrease contamination levels in order to safeguard marine ecosystem and human health in the Taranto area. 相似文献
449.
Pico Y Blasco C Farré M Barceló D 《Environmental science and pollution research international》2012,19(4):946-957
Purpose
Perfluorinated compounds (PFCs) are widely distributed from industrialized to remote locations throughout the world. This study demonstrates the spatial distributions of PFCs in water and sediments from the L’Albufera Natural Park (Valencia, Spain). 相似文献450.
Spatial distribution of illicit drugs in surface waters of the natural park of Pego-Oliva Marsh (Valencia,Spain) 总被引:1,自引:1,他引:0
Vazquez-Roig P Andreu V Blasco C Morillas F Picó Y 《Environmental science and pollution research international》2012,19(4):971-982