全文获取类型
收费全文 | 73篇 |
免费 | 0篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 2篇 |
环保管理 | 8篇 |
综合类 | 20篇 |
基础理论 | 6篇 |
污染及防治 | 24篇 |
评价与监测 | 5篇 |
社会与环境 | 8篇 |
灾害及防治 | 1篇 |
出版年
2021年 | 2篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 2篇 |
2017年 | 4篇 |
2016年 | 4篇 |
2015年 | 1篇 |
2014年 | 2篇 |
2013年 | 4篇 |
2012年 | 3篇 |
2011年 | 4篇 |
2010年 | 4篇 |
2009年 | 2篇 |
2008年 | 5篇 |
2007年 | 2篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2003年 | 3篇 |
2002年 | 5篇 |
2001年 | 5篇 |
2000年 | 4篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1992年 | 1篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1933年 | 1篇 |
排序方式: 共有75条查询结果,搜索用时 328 毫秒
11.
Heikens A Widianarko B Dewi IC De Boer JL Seinen W van Leeuwen K 《Environmental geochemistry and health》2005,27(5-6):409-418
In Asembagus (East Java, Indonesia) irrigation water is contaminated with effluent from the hyperacid Ijen Crater Lake resulting
in a low pH and high levels of various elements. As a first step towards a risk assessment, locally produced food items (rice,
maize, cassava leaf, cassava root, peanuts) were collected and concentrations of As, B, Ca, Cd, Co, Cu, Fe, Mg, Mn, Mo, Ni,
Pb, V, Zn were compared to samples from a reference area and with literature values. Further, concentrations in rice were
compared to total soil concentrations in paddy fields. Compared to the reference area, food items produced in the contaminated
area had increased levels of Cd, Co, Ni and Mn in particular, while levels of Mo were lower. In contrast, total soil concentrations
of Cd and Mn in particular have decreased whereas especially Mo was increased. In combination with the observed soil acidification,
it is likely that the bioavailable concentration of most elements in the contaminated soil is higher (except for Mo) due to
an increased weathering rate and/or input via the contaminated irrigation water. In terms of human health, concentrations in foods were generally within normal literature
values. However, it was observed that essential elements (in particular Fe) known for their inhibitory effects on e.g. Cd
and Mn toxicity did not accumulate in crops whereas Cd and Mn did. 相似文献
12.
Two interlaboratory studies on individual toxaphene congeners have been organised by the project Quality Assurance of Information for Marine Environmental Monitoring in Europe (QUASIMEME). Fifteen laboratories analysed two standard solutions in the first study and 13 laboratories analysed a standard solution and two cleaned biota extracts in the second study. The coefficients of variation obtained for the standard solutions were 6-21% and for the cleaned extracts 16-39%. Although the results were comparable to those of other studies, further improvement in the level of agreement between the participating laboratories was considered possible. 相似文献
13.
J. G. Wessels Boer 《毒物与环境化学》2013,95(1):19-27
The formulation of a sound policy for environmental protection and toxic substances control requires knowledge of the presence and concentration of environmental contaminants. For this reason monitoring programs have been set up in the Netherlands for water, drinking water, and air pollution. The Netherlands system for air pollution, monitoring of the substances SO2, NOχ, CO, O3 is now fully automated. Some examples will be given to show the acquisition and management and interpretation of air pollution measurements. Various smaller projects, supported by the Department of Health and Environmental Protection include measurement of indoor air‐contaminants, contaminants in soil and hazardous waste sites, and contaminants in biotic samples such as for instance PCB's in eels and seals and mussels. Moreover a Coordinating Committee regularly collects measurements from various sources in the Netherlands regarding pesticide residues and contaminants in food. For cost‐effective monitoring the accuracy of the measurements must be chosen with regard to the biological effect concentration of the pollutant. The necessity of proper control measurements to establish background levels and the necessity of ring‐tests to increase interlaboratory reproducibility is discussed. In cost‐effective monitoring the minimum number of measurements, which are necessary to check the effect of environmental protection measures, must be defined through proper sampling. 相似文献
14.
de Boer J van der Zande TE Pieters H Ariese F Schipper CA van Brummelen T Vethaak AD 《Journal of environmental monitoring : JEM》2001,3(4):386-393
Organic contaminants [polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenylethers (PBDEs), nonylphenols], organotin compounds and trace metals (cadmium, chromium, mercury and zinc) were determined in flounder (Platichthys flesus) liver and sediment from the Amsterdam harbour (North Sea Canal) and Rotterdam harbour (Euromonding) and off the Dutch coast between the Amsterdam and Rotterdam harbour mouths in order to assess the level of contamination in these harbours and to study contamination gradients. 相似文献
15.
de Boer HC 《Journal of environmental quality》2008,37(5):1968-1973
Co-digestion changes slurry characteristics and is supposed to increase short-term nitrogen (N) uptake by crops after application. A higher N uptake from slurry reduces the need for additional mineral N fertilizer. If farmers apply co-digested slurry (CS), a higher N recovery has to be taken into account to prevent losses to the environment. Since data on the effects of co-digestion on N recovery by crops are scarce, a pot experiment was performed. The apparent N recovery (ANR) of five different co-digested pig slurries was compared with their raw source slurries (RS) during 105 d after a single fertilization of ryegrass (Lolium perenne L.), grown under controlled conditions. Slurry was mixed with sandy soil and grass was cut every 35 d. The results show that co-digestion increased (p < 0.05) the ANR at first cut on average from 39 to 50%, at second cut from 7 to 9% (p < 0.05), and had no effect on ANR at third cut (3%). The ANR increase at first cut was likely due to an increase of the NH(4)-N/total N ratio along with a decrease of the organic C/total N ratio of slurry during co-digestion. Field application may under certain circumstances decrease N fertilizer value of CS, due to a higher NH(3) emission compared to RS. A potential ANR increase may then be reduced, absent, or even become a decrease. Under comparable NH(3) emissions, however, CS can in the short term be more valuable as an N fertilizer than RS, and fertilizer savings can likely be realized. 相似文献
16.
Degradation of ethinyl estradiol by nitrifying activated sludge 总被引:26,自引:0,他引:26
Vader JS van Ginkel CG Sperling FM de Jong J de Boer W de Graaf JS van der Most M Stokman PG 《Chemosphere》2000,41(8):1239-1243
Degradation of ethinyl estradiol (EE2) by nitrifying activated sludge was studied with micro-organisms grown in a reactor with feedback of sludge fed with only a mineral salts medium containing ammonium as the sole energy source. Ammonium was oxidised by this sludge at a rate of 50 mg NH4+ g(-1) DW h(-1). This activated sludge was also capable of degrading EE2 at a maximum rate of 1 microg g(-1) DW h(-1). Using sludge with an insignificant nitrifying capacity of 1 mg NH4+ g(-1) DW h(-1), no degradation of EE2 was detected. Oxidation of EE2 by nitrifying sludge resulted in the formation of hydrophilic compounds, which were not further identified. Most probably degradation by nitrifying sludge results in a loss of estrogenic activity, as hydroxylated derivatives of EE2 are known to have a substantially lower pharmacological activity than EE2. 相似文献
17.
An integrated assessment of estrogenic contamination and biological effects in the aquatic environment of The Netherlands 总被引:18,自引:0,他引:18
Vethaak AD Lahr J Schrap SM Belfroid AC Rijs GB Gerritsen A de Boer J Bulder AS Grinwis GC Kuiper RV Legler J Murk TA Peijnenburg W Verhaar HJ de Voogt P 《Chemosphere》2005,59(4):511-524
An extensive study was carried out in the Netherlands on the occurrence of a number of estrogenic compounds in surface water, sediment, biota, wastewater, rainwater and on the associated effects in fish. Compounds investigated included natural and synthetic hormones, phthalates, alkylphenol(ethoxylate)s and bisphenol-A. The results showed that almost all selected (xeno-)estrogens were present at low concentrations in the aquatic environment. Locally, they were found at higher levels. Hormones and nonylphenol(ethoxylate)s were present in concentrations that are reportedly high enough to cause estrogenic effects in fish. Field surveys did not disclose significant estrogenic effects in male flounder (Platichthys flesus) in the open sea and in Dutch estuaries. Minor to moderate estrogenic effects were observed in bream (Abramis brama) in major inland surface waters such as lowland rivers and a harbor area. The prevalence of feminizing effects in male fish is largest in small regional surface waters that are strongly influenced by sources of potential hormone-disrupting compounds. High concentrations of plasma vitellogenin and an increased prevalence of ovotestes occurred in wild male bream in a small river receiving a considerable load of effluent from a large sewage treatment plant. After employing in vitro and in vivo bioassays, both in situ and in the laboratory, we conclude that in this case hormones (especially 17 alpha-ethynylestradiol) and possibly also nonylphenol(ethoxylate)s are primarily responsible for these effects. 相似文献
18.
Rizaldi Boer Upik R. Wasrin Perdinan Hendri Bambang D. Dasanto Willy Makundi Julius Hero M. Ridwan Nur Masripatin 《Mitigation and Adaptation Strategies for Global Change》2007,12(6):1169-1188
Rehabilitation of degraded forest land through implementation of carbon-sink projects can increase terrestrial carbon (C)
stock. However, carbon emissions outside the project boundary, which is commonly referred to as leakage, may reduce or negate
the sequestration benefits. This study assessed leakage from carbon-sink projects that could potentially be implemented in
the study area comprised of 11 sub-districts in the Batanghari District, Jambi Province, Sumatra, Indonesia. The study estimates
the probability of a given land use/cover being converted into other uses/cover, by applying a logit model. The predictor
variables were: proximity to the center of the land use area, distance to transportation channel (road or river), area of
agricultural land, unemployment (number of job seekers), job opportunities, population density and income. Leakage was estimated
by analyzing with and without carbon-sink projects scenarios. Most of the predictors were estimated as being significant in
their contribution to land use cover change. The results of the analysis show that leakage in the study area can be large
enough to more than offset the project’s carbon sequestration benefits during the period 2002–2012. However, leakage results
are very sensitive to changes of carbon density of the land uses in the study area. By reducing C-density of lowland and hill
forest by about 10% for the baseline scenario, the leakage becomes positive. Further data collection and refinement is therefore
required. Nevertheless, this study has demonstrated that regional analysis is a useful approach to assess leakage. 相似文献
19.
20.