全文获取类型
收费全文 | 221篇 |
免费 | 3篇 |
国内免费 | 11篇 |
专业分类
安全科学 | 7篇 |
废物处理 | 25篇 |
环保管理 | 11篇 |
综合类 | 22篇 |
基础理论 | 37篇 |
污染及防治 | 83篇 |
评价与监测 | 22篇 |
社会与环境 | 25篇 |
灾害及防治 | 3篇 |
出版年
2023年 | 5篇 |
2022年 | 31篇 |
2021年 | 27篇 |
2020年 | 5篇 |
2019年 | 8篇 |
2018年 | 13篇 |
2017年 | 12篇 |
2016年 | 15篇 |
2015年 | 10篇 |
2014年 | 7篇 |
2013年 | 17篇 |
2012年 | 5篇 |
2011年 | 15篇 |
2010年 | 9篇 |
2009年 | 15篇 |
2008年 | 11篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 3篇 |
2004年 | 4篇 |
2002年 | 2篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1998年 | 1篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1991年 | 1篇 |
排序方式: 共有235条查询结果,搜索用时 15 毫秒
211.
Dang Duc Nhu Teruhiko Kido Nguyen Ngoc Hung Le Thi Hong Thom Rie Naganuma Le Ke Son 《毒物与环境化学》2013,95(4):824-838
Human exposure to polychlorinated dibenzodioxins (PCDD) and dibenzofurans (PCDF), especially 2,3,7,8 tetrachlorodibenzo-p-dioxin (TCDD), was investigated in Vietnam since initial severe adverse health effects were reported in the late 1970s. The purpose of this study was to determine the effects of dioxin exposure on steroid hormones of primiparae in an Agent Orange/dioxin hot-spot and a non-exposed area in Vietnam. Sixteen primiparae (8 at each site), all of whom were aged between 20 and 30 years with infants aged between 4 and 16 weeks, agreed to participate in this study. The mean dioxin levels in breast milk of primiparae from the hot-spot area, in terms of PCDD, PCDF, and PCDD?+?PCDF toxic equivalents (TEQ), were significantly higher than those for the non-exposed area. PCDD TEQ, PCDF TEQ, and PCDD?+?PCDF TEQ levels showed a significant correlation with dehydroepiandrosterone (DHEA), androstenedione (A-dione), and estradiol (E2) in the saliva of primiparae in a combination of hot-spot and non-exposed areas in Vietnam. The dose–response curve between salivary E2 or A-dione levels and dioxin levels was U-shaped in humans. This study provides an overview of studies regarding dioxin hot-spots and effects on human health and steroid hormone levels in particular, with a focus on the toxicity attributed to dioxins and furans. Furthermore, causal evidence regarding the effects of dioxins on endocrine disruption in humans is provided. 相似文献
212.
Water-dissolved oxygen was supplied into anaerobic aquifer , which oxidized Fe(II), Mn(II) and trivalent arsenic and changed
them into undissolved solid matter through hydrolysis, precipitation, co-precipitation and adsorption processes. The experiment
was carried out on the column imitated a bore core of anaerobic aquifer with water phase containing Fe(II), Mn(II), As(III)
concentration of 45.12 mg/L, 14.52 mg/L, 219.4 μg/L, respectively and other ions similarly composition in groundwater. After
6 days of air supply, concentration of iron reduced to 0.38 mg/L, manganese to 0.4 mg/L, arsenic to 9.8 μg/L (equivalent 99.16%
of iron, 97.25% of manganese and 95.53% of arsenic fixed), and for other ions, the concentration changed almost according
to general principles. Ion phosphate and silicate strongly influenced on arsenic removal but supported iron and manganese
precipitation from water phase. Based on the experimental results, new model of groundwater exploitation was proposed. 相似文献
213.
Environmental Geochemistry and Health - Environmental isotope techniques were applied to study the hydrochemical characteristics of groundwater in Soc Trang Province, Southern Vietnam, in frame of... 相似文献
214.
Radon (222Rn) level variations on a regional scale: influence of the basement trace element (U, Th) geochemistry on radon exhalation rates 总被引:2,自引:0,他引:2
Ielsch G Thiéblemont D Labed V Richon P Tymen G Ferry C Robé MC Baubron JC Béchennec F 《Journal of environmental radioactivity》2001,53(1):75-90
The approach proposed in this study provides insight into the influence of the basement geochemistry on the spatial distribution of radon (222Rn) levels both at the soil/atmosphere interface and in the atmosphere. We combine different types of in situ radon measurements and a geochemical classification of the lithologies, based on 1/50,000 geological maps, and on their trace element (U, Th) contents. The advantages of this approach are validated by a survey of a stable basement area of Hercynian age, located in South Brittany (western France) and characterized by metamorphic rocks and granitoids displaying a wide range of uranium contents. The radon source-term of the lithologies, their uranium content, is most likely to be the primary parameter which controls the radon concentrations in the outdoor environment. Indeed, the highest radon levels (> or = 100 Bq m-3 in the atmosphere, > or = 100 mBq m-2 s-1 at the surface of the soil) are mostly observed on lithologies whose mean uranium content can exceed 8 ppm and which correspond to peraluminous leucogranites or metagranitoids derived from uraniferous granitoids. 相似文献
215.
The leafhopper Scaphoideus titanus is the vector of a major phytoplasma grapevine disease, Flavescence dorée. The vector’s distribution is in Eastern and Northern
Europe, and its population dynamics varies as a function of vineyard latitude. We tested the hypothesis that hatching dynamics
are cued by cold temperatures observed in winter. We exposed eggs from a natural population to simulated “cold” and “mild”
winters and varied the exposure time at 5 °C from 0 to 63 days. We show that temperature cooling mainly affected the onset
of hatching and is negatively correlated to the cold time exposure. The majority of hatchings occurred more quickly in cold
rather than in mild winter simulated conditions, but there was no significant difference between the duration of hatching
of eggs whatever the cold time exposure. In agreement with the Northern American origin of the vector, the diapause termination
and thus the timing regulation of egg hatching require cold winters. 相似文献
216.
This study investigated the indoor application practices of pesticides in different homes located in urban, suburban, and rural areas of the Bangkok Metropolitan Region (BMR). A multi-stage stratified-judgmental sampling was applied to select 280 representative households in BMR for an in-depth questionnaire survey. We found about 71% of these households having mosquitoes as their main indoor nuisance. An inventory on the types and active ingredients was obtained through a shop-shelf survey. Among 22 available commercial products, 12 different active ingredients were observed with the pyrethroid containing pesticides are the most common. The stepwise regression analysis was conducted to reveal the statistical association between indoor levels of total pyrethriods (in the air and on the floor surface of homes) and the household application practices such as the overlap time period since the last application, application and storage locations, and frequency of applications, for instances. 相似文献
217.
We examined the daily inorganic arsenic (i-As) intake from drinking water and rice in 45 households (75 individuals) in the An Giang province, Southern Vietnam. The daily i-As intake ranged from 28-102 μg d(-1), equivalent to the daily dose of 0.6-1.9 μg d(-1) kg((body wt))(-1). Increased As concentrations were observed in human hair in the study location. Approximately 67% (n = 44), 42% (n = 28), and 15% (n = 10) of the hair samples had As levels exceeding 1, 3, and 10 μg g(-1), respectively. The total As concentrations in female and male hair correlated well with the total daily i-As intake. Measurement of As concentrations in the hair of people who were consuming or had previously consumed As from contaminated sources may help predict the onset of negative health effects. We suggested an application of the Bayes's theorem to calculate the probability that an individual in a population will acquire a negative health effect, given that the concentration of arsenic in the subject's hair has been determined. 相似文献
218.
Santiago Badillo Tania Patricia Pham Thi Thanh Ha Nadeau Mireille Allard-Massicotte Rosalie Jacob-Vaillancourt Colin Heitz Michèle Avalos Ramirez Antonio 《Environmental science and pollution research international》2021,28(23):29037-29045
Environmental Science and Pollution Research - Composting process of residual organic material generates considerable amounts of liquid leachate which contains high organic load. This waste stream... 相似文献
219.
Nguyen Thu Thuy Thi Hoang Anh Quoc Nguyen Vinh Dinh Nguyen Hue Thi Van Vu Tu Vuong Xuan Truong Tu Minh Binh 《Environmental science and pollution research international》2021,28(11):13340-13351
Environmental Science and Pollution Research - Concentrations and congener profiles of seven di- to hexachlorinated benzenes (CBzs) were characterized in bottom ash and fly ash samples collected... 相似文献
220.
Hoang Anh Tuan Nižetić Sandro Pham Van Viet 《Environmental science and pollution research international》2021,28(5):4918-4950
Environmental Science and Pollution Research - Currently, the considerable decline in fossil fuel resources and the high rise in vehicle emissions have prompted researchers and governments to... 相似文献