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101.
Classification of dimension stone wastes 总被引:1,自引:0,他引:1
Karaca Z Pekin A Deliormanlı AH 《Environmental science and pollution research international》2012,19(6):2354-2362
Purpose
For countries in which the stone industry is well developed, opposition to quarry and plant waste is gradually increasing. The primary step for waste control and environmental management is to define the problem of concern. In this study, natural building stone wastes were classified for the first time in the literature.Methods
Following on-site physical observations and research at more than 50 quarries and 20 plants, stone wastes were classified as (1) solid, (2) dust and (3) semi-slurry, slurry and cake.Conclusions
As a result of this study, the characteristics of wastes, their main environmental threats and the industries in which wastes could be used were defined for each group. 相似文献102.
Ayhan?AkyolEmail author Türkay?Türko?lu Sultan?Bekiro?lu Ahmet?Tolunay 《Environment, Development and Sustainability》2018,20(3):1037-1052
In this study, perceptions, needs, expectations and participation levels in the park management of residents of the K?z?lda? National Park were investigated. It was focused on especially how residents’ livelihood was affected by establishment and management of K?z?lda? National Park. It was examined why residents do not support protection efforts. Research data were obtained with the help of a survey form prepared to determine the perceptions of residents living in the national park. For the analyses of obtained data, statistics package program (SPSS 20) was used and also independent-samples t test and one-way analyses of variance were applied. As a result, the most important negative effects were loss of income and changes in traditional lifestyle. The most affected group from these negative effects was the ones dealing with animal husbandry. For the sustainable management and protection of national park, sense of belonging should be brought to residents so as to increase participation, traditional lifestyle of residents should be conserved and new sources of income should be generated for residents. To improve the participation of residents in national park management, community engagement mechanisms can be used as a tool. 相似文献
103.
104.
One of the most important hydrogeologic problems in and adjacent areas of evaporitic formations is severe quality degradation
of groundwaters. These kinds of groundwaters contain high content of dissolved solids and generally have some limitations
for use. Tatlicay basin (north-central Turkey) is an example to effects of the evaporites on groundwater quality in the adjacent
alluvium aquifer. Gypsum and anhydrites in the two evaporite formations (Bayindir and Bozkir) effect of the groundwater quality
in the alluvium adversely, by dissolution of the evaporites by surface drainage and infiltration into the alluvium aquifer
(widespread effect) and by infiltration of low quality gypsum springs (local effect) into the aquifer. Evaporitic formations
significantly increased EC, TDS, Ca and SO4 parameters in the alluvium aquifer in the central and downstream regions. EC has increased roughly from 500–800 to 1,700–2,000 μS/cm,
Ca has roughly increased from 3–4 to 10 meq/l, SO4 has increased 0.5–1 to 11–12 meq/l. Consequently, three clusters were distinguished in the basin; (1) nonevaporitic waters
in low TDS, Na, Ca, Mg, Cl and SO4, (2) diluted waters in high TDS and relatively high Cl, moderate-relatively high Na, Ca, Mg, SO4, (3) gypsum springs in highest TDS, Ca, SO4, but moderate Mg and low Na, Cl. 相似文献
105.
Alkali-silica reactions of mortars produced by using waste glass as fine aggregate and admixtures such as fly ash and Li2CO3 总被引:1,自引:0,他引:1
Use of waste glass or glass cullet (GC) as concrete aggregate is becoming more widespread each day because of the increase in resource efficiency. Recycling of wastes is very important for sustainable development. When glass is used as aggregate in concrete or mortar, expansions and internal stresses occur due to an alkali-silica reaction (ASR). Furthermore, rapid loss in durability is generally observed due to extreme crack formation and an increase in permeability. It is necessary to use some kind of chemical or mineral admixture to reduce crack formation. In this study, mortar bars are produced by using three different colors of glass in four different quantities as fine aggregate by weight, and the effects of these glass aggregates on ASR are investigated, corresponding to ASTM C 1260. Additionally, in order to reduce the expansions of mortars, 10% and 20% fly ash (FA) as mineral admixture and 1% and 2% Li(2)CO(3) as chemical admixture are incorporated by weight in the cement and their effects on expansion are examined. It is observed that among white (WG), green (GG) and brown glass (BG) aggregates, WG aggregate causes the greatest expansion. In addition, expansion increases with an increase in amount of glass. According to the test results, it is seen that over 20% FA and 2% Li(2)CO(3) replacements are required to produce mortars which have expansion values below the 0.2% critical value when exposed to ASR. However, usages of these admixtures reduce expansions occurring because of ASR. 相似文献
106.
After energy, water is the most critical commodity to be made available to people to keep them alive. Saudi Arabia has vast land and people are living in all regions. Most of these are connected to national grid but some are not, especially in remote areas like in the north, south, and west south. Pumping water in remote areas for domestic needs like agriculture and animals beside human needs is essential and require regular power supply. The present idea of wind-PV-Battery hybrid power system based on 100% renewable source is being proposed to utilize and tested in some of the regions on experimental bases. Of the five locations chosen for the purpose, namely Dhahran, Riyadh, Jeddah, Guriat and Nejran, some are good from both wind and solar intensity point of view some have good winds only and some good solar only. Nearly optimal size of PV-Wind water pumping system is determined for each of these sites considering the availability of solar and wind energy distributions throughout the year in these sites. It is shown that the monthly total water pumping capacity when using nearly optimal PV-Wind water pumping system is fairly uniform throughout the year except for the sites of Guriat and Riyadh. In these sites higher water pumping capacity is observed during the spring and summer months. On the other hand the cost of underground water pumping is found to vary between 6 to 12 US¢/m3 for the five sites considered. 相似文献
107.
Carmem S. M. Masutti Ahmet R. Mermut 《Journal of environmental science and health. Part. B》2013,48(1):33-43
The objective of this research was to assess the degradation of fipronil [5-amino-1-(2,6-dichloro-α,α,α -trifluoro-p-tolyl)-4-trifluoromethylsulfinylpyrazole-3-carbonitrile] in soils from sugar cane fields in Northeastern Brazil. Degradation experiments were carried out under laboratory conditions (controlled temperature and in the dark), where sterile and non-sterile soils (Ustoxs) were incubated [under moisture content of 55% of the water holding capacity (WHC)] and analyzed for fipronil disappearance and metabolite formation. Microbial communities present in the soil degrade fipronil. However, biodegradation seems to be dependent on the bioavailability of the fipronil and the half-life according to the zero-order model. Fipronil degradation rate appeared to be biphasic. Degradation fipronil ranged from 83 days (initial concentration = 978 ng g? 1; short-term experiment) to 200 days (initial concentration = 689 ng g? 1; long-term experiment). This an initial slower rate followed by a faster rate after 90 days of incubation may lead to shorter half-life than that calculated with the zero-order model. The sulfone derivative (an oxidation product) was the predominant metabolite, but the sulfide (a reduction product) and amide (a hydrolysis product) derivatives were also formed under non-sterile conditions after 120 days of incubation. The metabolites underwent further biodegradation, particularly the sulfone derivative. Bioavailability appears to affect fipronil degradation in soils with an effective capacity to adsorb fipronil (such as Ustoxs), while redox potential was important for the formation of metabolites. Despite the fine texture, more aerobic sites were present, thus favoring the formation of the sulfone metabolite over that of the sulfide metabolite. Therefore, microaggregation of Ustoxs, with high clay content, played a very important role in determining the types of metabolites formed. 相似文献
108.
Protected Turkish areas in the Mediterranean region are compared with those of other Mediterranean countries. Policies followed
in Turkey for conservation protection of the natural and cultural environment and the use of coastal resources for tourism
are discussed. The purpose and application of Turkish law is examined with respect to the interaction between the protection
of coastal areas and tourism. Modifications on the administrative and management regulations in Turkey enabling a better use
of coastal areas is suggested by combining coastal tourism and protection. The necessity and importance of estabilishing and
managing Marine Parks in short-and long-term plans are acknowledged. 相似文献
109.
Ahmet Demirak Hanife Ayd?n Y?lmaz Feyyaz Keskin Yal??n ?ahin O?uz Akpolat 《Environmental monitoring and assessment》2012,184(12):7113-7124
The Bay of Gokova in Southeastern Aegean Sea (Turkey) is important by the potential of agricultural, municipal, and tourism activities. In addition, there is no industrial plant within the area in the Aegean Sea. Kad?n Creek (Azmak) and Ak?ap?nar Creek (Azmak) flowing into the inner Gokova Bay are one of the important factors in determining the character of the inner Gokova Bay. In this study, nine stations were selected in the inner Gokova Bay, Kad?n Creek, and Akcap?nar Creek. The concentrations of Cd, Cu, Fe, Pb, and Zn were measured in suspended particulate matter (SPM) and sediments. The samples of sediments and SPM were collected in between February 2008 and September 2008. The aim of the study is searching the change of concentrations of Cd, Cu, Fe, Pb, and Zn in suspended particulate matter and sediments in the inner Gokova bay, Kad?n Creek, and Ak?ap?nar Creek. It has been identified that the metal concentrations in the creeks are higher than the metal concentrations in the marine environment. It has also been observed that the concentrations of Pb, Cd, and Cu in summer season have been higher than in the winter season, but the concentrations of Fe and Zn have not shown a significant difference between in summer and winter seasons. The obtained results show that the some heavy metals are caused by the agricultural, municipal, and tourism activities operating in the coastal areas and terrestrial environment, and they are transported from the creeks to the Gokova Bay by suspended particulate matter. 相似文献
110.
Gülmez Ahmet Altıntaş Nurullah Kahraman Ünsal Ozan 《Environmental and Ecological Statistics》2020,27(4):753-768
Environmental and Ecological Statistics - The paper investigates the non-linear causality from energy consumption and economic growth to ecological footprint for the case of Turkey by employing... 相似文献