全文获取类型
收费全文 | 82篇 |
免费 | 2篇 |
专业分类
安全科学 | 2篇 |
废物处理 | 10篇 |
环保管理 | 5篇 |
综合类 | 8篇 |
基础理论 | 18篇 |
污染及防治 | 24篇 |
评价与监测 | 9篇 |
社会与环境 | 6篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 3篇 |
2022年 | 2篇 |
2021年 | 6篇 |
2020年 | 2篇 |
2019年 | 1篇 |
2018年 | 6篇 |
2017年 | 6篇 |
2016年 | 8篇 |
2015年 | 2篇 |
2014年 | 3篇 |
2013年 | 3篇 |
2012年 | 5篇 |
2011年 | 6篇 |
2010年 | 3篇 |
2009年 | 5篇 |
2008年 | 6篇 |
2007年 | 4篇 |
2006年 | 2篇 |
2005年 | 3篇 |
2003年 | 1篇 |
1999年 | 3篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1981年 | 1篇 |
排序方式: 共有84条查询结果,搜索用时 15 毫秒
71.
Amaral MJ Bicho RC Carretero MA Sanchez-Hernandez JC Faustino AM Soares AM Mann RM 《Chemosphere》2012,87(7):765-774
As part of a wider study examining the impacts of corn pesticides on lacertid lizards in north-western Portugal, we examined various physiological, biochemical, and histological biomarkers of exposure and effect among field populations of Podarcis bocagei. Biomarkers included body condition index, standard metabolic rate, locomotor performance, parasitization, glutathione oxidative pathways and related enzyme activity, lipid peroxidation and liver and testis histology. Few of the various biomarkers investigated provided statistically significant evidence of toxic effect. However, using a weight of evidence approach, we conclude that pesticides are affecting lizards living in the vicinity of pesticide exposed corn agriculture sites. Lizards from these locations present a profile of animals under metabolic stress with reduced condition indices, increased standard metabolic rate, lower incidence of hepatocyte vacuolation, altered iron metabolism, increased activation of GSH oxidation pathways, and even increased prevalence of hemoparasites. 相似文献
72.
de Noronha Castro Pinto FA Moreno Mardones MD 《Environmental monitoring and assessment》2009,155(1-4):309-318
Copacabana is one of the most famous neighborhoods of the city of Rio de Janeiro/Brazil but suffers from a high inhabitant density. One of the many environmental problems faced is related to noise pollution. In order to assess not only the noise levels, to which the population is exposed, but also to quantify the influence of architectural aspects, the paper presents the steps taken towards a simulation of the noise emission and propagation in this area. The results of the simulation are compared to measurements in different locations and daily-hours. The discrepancies are analyzed and the methodology is discussed in view of its application to a huge urban center like the city of Rio de Janeiro. 相似文献
73.
Augusto Screpanti Alessandra De Marco 《Environmental pollution (Barking, Essex : 1987)》2009,157(5):1513-1520
Because of climatic reasons and of reduced concentrations of SO2, ground-level ozone (O3) is one of the main air pollutants in Southern Europe. Ozone levels are very high both in rural and urban locations. In the cities, O3 can affect human health and materials. Regarding materials, most relevant is the exposure to pollutants of cultural heritage buildings. In particular, monuments registered on UNESCO's list of the world heritage require special monitoring. In Italy 34% and 97% of the territory is exposed to corrosion risk higher than the tolerable level for limestone and copper, respectively. The tolerable corrosion level for limestone and copper was also exceeded in the central area of Milan. In this area the tolerable O3 concentration for copper was calculated. These concentrations (ranging between 30 and 40 μg/m3) cannot be exceeded at unchanged concentration of other pollutants to maintain corrosion levels below the tolerable ones. 相似文献
74.
Augusto Foà Gaia Mouteforti Lucia Minutini Augusto Innocenti Cecilia Quaglieri Monica Flamini 《Behavioral ecology and sociobiology》1994,34(4):267-274
The daily pattern of locomotor activity of the ruin lizard Podarcis sicula in its natural environment changes from unimodal in spring (with only one activity peak per day) to bimodal in summer (with two well-separated activity peaks per day) and it becomes unimodal again in autumn. In order to establish whether such seasonal changes in pattern might be at least in part controlled by endogenous temporal programs, lizards were collected at different times of the year and immediately after capture their locomotor behavior was tested in the laboratory under constant temperature (29°C) and in darkness. For some individuals tested in the laboratory the locomotor pattern previously expressed in the field was known. Seasonal differences in pattern have been unequivocally found to have an endogenous component, as most lizards in constant conditions retained the locomotor pattern shown in the field during the same season. Besides, in the bimodal lizards the freerunning period of locomotor rhythms () was significantly shorter and circadian activity time (a) longer than in the unimodal ones. Altogether the data are compatible with the idea that both the interdependent changes of and a and the changes in locomotor pattern occurring seasonally in the circadian activity rhythms of P. sicula would depend on changes in the phase relationship between mutually coupled oscillators which drive these rhythms.
Correspondence to: A. Foà 相似文献
75.
This study aimed at the ecological-economic valuation of the Potengi estuary mangrove wetlands, based on the integration of
spatial data (mangrove forest coverage map, Nautical Chart, Environmental Sensitivity Chart) with data from literature on
the biogeochemistry of nitrogen (N), phosphorus (P), and heavy metals in the mangrove estuary wetland Potengi) and field verification
data (topographic profile of mangrove forest, GPS routes obtained in the field in the touristy sightseeing areas and plots
of mariculture). The ecological and economic valuation of the services performed by the Potengi estuary mangrove wetlands,
mainly as biogeochemical barrier for the transport of P, N and heavy metals in tropical coastal areas, were obtained just
as if the retention of those elements was necessary by Wastewater Treatment Plants (WTP) with Stabilization Ponds, typical
in the estuary, and Zeolitic plant, respectively. Closer to real scenarios were observed for obtaining the values of these
ecological services, such as the release of the P, N and heavy metals in domestic and industrial sewage in the estuary, the
capability of dilution and the influence of the tides in the estuary. The tourism potential of the Potengi estuary mangrove
wetlands were assessed according to the current forms of use, and potential of aquaculture through the main types of farming
in mangrove areas. For these ecological services, considerable values were obtained of about USS15,500/ha, such as costs of
implementation and construction of sewage treatment plants, as well as costs of sewage treatment plants. Nearly US$ 12.500
/ ha amount each year from tourism and aquaculture income, demonstrating the economic viability of the Potengi estuary mangrove
wetlands conservation. 相似文献
76.
In the aftermath of the Chernobyl nuclear power plant accident, a research group of the Italian National Institute of Health (Istituto Superiore di Sanità) carried out two research programmes on maternal milk. One concerned the transfer of caesium radionuclides from the diet to breast milk. In the other, the activity concentrations of 137Cs were also determined in urine and placenta. The first study estimated the mothers’ average 137Cs dietary intake, in the second study the intake was evaluated individually for each subject. In 2004, the International Commission on Radiological Protection published modified systemic biokinetic models which also account for transfer to breast milk. The model for caesium radionuclides was implemented and tested by the authors with the experimental data described above. A good agreement was obtained between measured data and model simulations of 137Cs activity concentration in human milk. The model, however, tends to systematically overestimate 137Cs activity concentration in urine, in which case the agreement is to be considered satisfactory in terms of order of magnitude. 相似文献
77.
Débora Campos de Faria Antônio Augusto Ulson de Souza Selene Maria de Arruda Guelli Ulson de Souza 《Journal of Cleaner Production》2009,17(9):857-862
Industry is responsible for high water consumption and it has become one of the main sources of water resource deterioration. However, industries are seeking alternatives that minimize the impact of using these natural resources. Some of the alternatives for reducing water consumption involve the reuse and/or recycling of wastewater. This study aims to seek alternatives to optimize water networks, minimize freshwater consumption and/or reduce costs. A non-linear program (NLP) model targeting the minimization of freshwater consumption and/or operating costs was developed. The model is based on the conservation equations of chemical species (contaminants) and mass (water). Options to reduce the cost and consumption of networks with and without regeneration processes are presented. The solutions are identified using a two-step procedure in which cost is optimized while the previously obtained minimum freshwater consumption remains fixed. The results showed excellent agreement with results reported by other authors. 相似文献
78.
Rodolfo Salm Lisa Feder Mario Augusto Gonçalves Jardim Nefertiti Hass Euphly Jalles-Filho Ana Maria Costa 《Environment, Development and Sustainability》2009,11(1):161-173
In a meeting between FUNAI (the Brazilian Indian National Foundation) and the Kayapo in the Kayapo village of Aukre, in October
2005, the Kayapo Indians requested support to increase the culture of coconuts (Cocos nucifera) in their lands. The introduction of exotic species is a cause of biological diversity loss throughout the world. However,
this is by no means applicable to all kinds of exotic species. We argue that the culture of coconuts may actually be a useful
tool for the conservation of this country’s indigenous lands, despite criticism to the contrary. It may also be useful as
source for raw material for the indigenous people who are presently experiencing a population boom. For the Kayapo of south-eastern
Amazonia, such a demographic explosion, coupled with their increasing dependence on money to purchase industrialized goods,
tend to substantially increase the pressure on their lands, which still contain a substantial amount of well-preserved seasonally-dry
Amazonian forests. We investigated the actual economic relevance of coconuts for the Kayapo by measuring human and coconut
populations and found that this exotic palm is not important for the subsistence of these Indians, due to coconut scarcity,
and that such importance is not forthcoming. In the Amazon, coconuts may be particularly useful for the Indians’ nutrition
due to the high energetic value of the solid endosperm of the mature fruit. Therefore, given the importance of indigenous
lands for the conservation of the Amazonian forests, the encouragement of subsistence coconut cultures in indigenous lands
is defensible as a measure for the conservation of biodiversity. 相似文献
79.
Defalque Cristiane Maria Marins Fernando Augusto Silva da Silva Aneirson Francisco Rodríguez Elen Yanina Aguirre 《Journal of Material Cycles and Waste Management》2021,23(1):55-76
Journal of Material Cycles and Waste Management - A discussion is currently under way in the literature on the sustainable benefits of recycling material, particularly paper, which has high global... 相似文献
80.
La Fuente Carla I. A. de Souza Andressa Tamyris Tadini Carmen C. Augusto Pedro Esteves Duarte 《Journal of Polymers and the Environment》2021,29(6):1908-1920
Journal of Polymers and the Environment - In this study cassava starch modified by ozone technology and cellulose nanofibres were used to produce films. These nanocomposites were produced by... 相似文献