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241.
Application of nanoscale zero valent iron (NZVI) for groundwater remediation in Europe 总被引:4,自引:1,他引:3
Mueller NC Braun J Bruns J Černík M Rissing P Rickerby D Nowack B 《Environmental science and pollution research international》2012,19(2):550-558
Purpose
Nanoscale zero valent iron (NZVI) is emerging as a new option for the treatment of contaminated soil and groundwater targeting mainly chlorinated organic contaminants (e.g., solvents, pesticides) and inorganic anions or metals. The purpose of this article is to give a short overview of the practical experience with NZVI applications in Europe and to present a comparison to the situation in the USA. Furthermore, the reasons for the difference in technology use are discussed. 相似文献242.
243.
Less than four years after publication of ISO 14001, thousands of organizations worldwide have adopted the standard. In this article, researchers working with the National Database on Environmental Management Systems (NDEMS) review some preliminary data on organizations' experiences with EMS adoption and implementation. Their findings indicate that, although organizations may face hurdles in implementing EMSs, the majority believes the benefits outweigh the drawbacks. © 2000 John Wiley & Sons, Inc. 相似文献
244.
Mireille Harmouche-Karaki Joseph Matta Khalil Helou Yara Mahfouz Nicole Fakhoury-Sayegh Jean-François Narbonne 《Environmental science and pollution research international》2018,25(15):14350-14360
Organochlorine pesticides (OCPs) were banned by the Stockholm Convention many years ago; however, they are still detected in the environment due to their high persistence, their current illegal use, and their import from countries where they have not been banned. We evaluated the serum concentrations of selected OCPs (hexachlorobenzene (HCB), β-hexachlorocyclohexanes (β-HCH), p,p′-dichlorodiphenyltrichloroethane (DDT) and its metabolite p,p′-dichlorodiphenyldichloroethylene (DDE) in a sample of Lebanese adults using gas chromatography coupled to an ion trap mass spectrometer detector. The mean concentrations of HCB, β-HCH, DDT, and DDE were 7.1, 8.6, 2.1, and 18.9 ng/g of lipids, respectively, and the major contributor among the four OCPs was DDE. The OCP levels in the present study were in general lower than the values observed in several countries worldwide and their concentrations at the 95th percentile were lower than the biomonitoring equivalents (BEs) excluding any appreciable health risk. We observed an inverse association between HCB concentrations and body mass index (BMI) as well as HCB, β-HCH, and DDE levels, and smoking habits. Milk consumption however was positively associated with an increased serum level of β-HCH. This study, which was the first to investigate OCP serum levels in a Lebanese population, provides a baseline to which future measurements can be compared. 相似文献
245.
Ideally, the response of electrochemical detectors is proportional to the concentration of targeted airborne chemicals and is not be affected by concomitantly present substances. Manufacturers provide a limited list of cross-sensitivities but end-users have anecdotally reported unexpected interferences by other substances. Electrochemical detectors designed to measure airborne levels of CO, H(2)S, NO, NO(2), or SO(2), were challenged with potentially interfering substances in the absence of target analytes. Cross-sensitivities undocumented by the manufacturers were observed and were found to vary between different models of instruments for the same challenge chemical. 相似文献
246.
Karen Chong Sarah Keating Stephanie Hurst Anne Summers Howard Berger Gareth Seaward Nicole Martin Tami Friedberg David Chitayat 《黑龙江环境通报》2009,29(5):489-494
Cornelia de Lange Syndrome (CdLS) is a multisystem disorder characterized by somatic defects and mental retardation. Prenatal diagnosis of this severe condition is difficult in view of the non-specific ultrasound abnormalities. We report three cases with prenatally suspected CdLS based on the ultrasound findings as well as low PAPP-A detected on first trimester screening in one case, and the results of the autopsy and the NIPBL gene mutation analysis. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
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249.
Oikwathaile Onosi Nicole S. Upfold Michael D. Jukes Garry A. Luke Caroline Knox 《Food and environmental virology》2020,12(1):84-88
Human bocavirus (HBoV) has a global distribution and is associated with respiratory and enteric infections, particularly in the paediatric population. In this study, raw sewage and mussel samples were analysed for the presence of HBoV using nested PCR with primers targeting the VP1/VP2 junction. Amplification and sequencing of the 382 bp region followed by phylogenetic analysis indicated the presence of HBoV 2 in mussel samples and HBoV 3 in sewage samples. This is the first report describing the presence of enteric-associated HBoV in environmental samples from South Africa and in mussel samples from the African continent. The results signify the need for further studies examining the potential risk of foodborne transmission of HBoV and highlight the importance of continued screening to determine the prevalence and epidemiology of HBoV in South Africa. 相似文献
250.
The notion that the idea of nature isnot quite the unbiased rule to designsustainable futures is obvious. But,nevertheless, questions about nature, how itfunctions and what it might aim at, is leadingthe controversial debates about bothsustainability and biotechnology. These tworesearch areas hardly have the same theorybackground. Whereas in the first concept, theidea of eternal cyclical processes is basic,the latter focuses on optimization. However,both concepts can work together, but only undera narrow range of public acceptance in Europe.The plausibility of arguments for usingbiotechnology within sustainable technologiesvaries according to the assumed part natureitself plays for reaching optimized states. Theculture related vision of nature's functionshas impact on agricultural biotechnology,dealing not only with food crops but also withnon-food plants like renewable resources thatare used for energy or fiber production. Theseplants are grown to reach sustainabledevelopment. However, there is a fundamentaldifference between regarding biofuels as``renewable' and ``regenerative,' due to thetension between the concepts of ``the natural'and ``the sustainable.' Arguments ofoptimization, efficiency, and efficacy arecritically discussed in order to take thepresent need for sustainable technologies forserious. 相似文献