全文获取类型
收费全文 | 98篇 |
免费 | 1篇 |
国内免费 | 9篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 1篇 |
环保管理 | 19篇 |
综合类 | 25篇 |
基础理论 | 27篇 |
污染及防治 | 11篇 |
评价与监测 | 2篇 |
社会与环境 | 5篇 |
灾害及防治 | 17篇 |
出版年
2021年 | 1篇 |
2020年 | 2篇 |
2019年 | 1篇 |
2018年 | 2篇 |
2017年 | 3篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 19篇 |
2012年 | 5篇 |
2011年 | 9篇 |
2010年 | 1篇 |
2009年 | 2篇 |
2008年 | 3篇 |
2007年 | 4篇 |
2006年 | 5篇 |
2005年 | 1篇 |
2004年 | 5篇 |
2003年 | 5篇 |
2002年 | 6篇 |
2001年 | 4篇 |
2000年 | 8篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 4篇 |
1995年 | 3篇 |
1993年 | 1篇 |
1992年 | 1篇 |
排序方式: 共有108条查询结果,搜索用时 250 毫秒
31.
In this study, ambient air samples from different atmospheric environments were examined for both PBDE and PCDD/F characteristics to verify that combustion is a significant PBDE emission source. The mean ± SD atmospheric PBDE concentrations were 165 ± 65.0 pg Nm−3 in the heavy steel complex area and 93.9 ± 24.5 pg Nm−3 in the metals complex areas, 4.7 and 2.7 times higher than that (35.3 ± 15.5 pg Nm−3) in the urban areas, respectively. The statistically high correlation (r = 0.871, p < 0.001) found between the atmospheric PBDE and PCDD/F concentrations reveals that the combustion sources are the most likely PBDE emission sources. Correspondence analysis shows the atmospheric PBDEs of the heavy steel and metals complex areas are associated with BDE-209, -203, -207, -208, indicative of combustion source contributions. Furthermore, the PBDEs in urban ambient air experience the influence of the evaporative releases of the commercial penta- and octa-BDE mixtures, as well as combustion source emissions. By comparing the PBDE homologues of indoor air, urban ambient air, and stack flue gases of combustion sources, we found that the lighter brominated PBDEs in urban ambient air were contributed by the indoor air, while their highly brominated ones were from the combustion sources, such as vehicles. The developed source identification measure can be used to clarify possible PBDE sources not only for Taiwanese atmosphere but also for other environmental media in other countries associated with various emission sources in the future. 相似文献
32.
全球气候变化背景下台湾海峡浮游植物的长期变化 总被引:5,自引:0,他引:5
为了解气候–海洋环境变异的生态影响,阐述并比较了1984~1985年和2006~2008年台湾海峡浮游植物分布的时空变化特征.结果表明:浮游植物物种多样性指数和均匀度分别由3.29和0.62降至2.90和0.55;平均细胞密度增加3.7倍,由372.0×104 cells/m3增加到173 8.8×104 cells/m3;种类组成里暖水种比例提高了7.3%,由45.9%上升到53.2%;浮游植物主要优势种组成趋于简单和小型化,如小型硅藻柔弱拟菱形藻(Pseudonitzschia delicatissima)和细弱海链藻(Thalassiosira subtilis),其平均丰度和优势度显著提高.浮游植物群落的这些年代际分布变异可看作全球气候长期变暖背景下对台湾海峡环境变化的生态学响应迹象.图3表6参34 相似文献
33.
This paper presents a new market-incentive (MI) system to recycle waste-packaging containers in Taiwan. Since most used packaging containers have no or insufficient market value, the government imposes a combined product charge and subsidy policy to provide enough economic incentive for recycling various kinds of packaging containers, such as iron, aluminum, paper, glass and plastic. Empirical results show that the new MI approach has stimulated and established the recycling market for waste-packaging containers. The new recycling system has provided 18,356 employment opportunities and generated NT$ 6.97 billion in real-production value and NT$ 3.18 billion in real GDP during the 1998 survey year. Cost-effectiveness analysis constitutes the theoretical foundation of the new scheme, whereas data used to compute empirical product charge are from two sources: marketing surveys of internal conventional costs of solid-waste collection, disposal and recycling in Taiwan, and benefit transfer of external environmental costs in the United States. The new recycling policy designed by the authors provides a reasonable solution for solid-waste management in a country with limited land resources such as Taiwan. 相似文献
34.
35.
Polychlorinated dibenzo-p-dioxins and dibenzofurans pollution in China: sources, environmental levels and potential human health impacts 总被引:4,自引:0,他引:4
This review represents an assessment of the pollution status of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in China (the mainland, Hong Kong and Taiwan). During the past decades, seven PCDD/Fs pollution hotspots have been found: (a). Ya-er Lake, Hubei Province, with 'total PCDD/Fs' level reaching 177,427 pg g(-1) (dry weight) in lake sediments; (b). Chinese Schistosomiasis affected areas of Jiangxi Province with 33,660 pg g(-1) in soil; (c). e-waste recycling area of Yangtze River Delta, with 2726 pg g(-1) in paddy soil; (d). e-waste recycling area of Guiyu (eastern part of Guangdong Province), with 967,500 pg g(-1) in mixture of burnt residue and soil (the highest level among all hotspots); (e). Pearl River Delta with 2630 pg g(-1) in coastal sediment. (f). Kwun Tong, Victoria Harbour, Hong Kong with 10,999 pg g(-1) in coastal sediment; and (g). southern Taiwan with 606,000 pg g(-1) in soil near the vicinity of a pentachlorophenol manufacturing factory. The main sources of PCDD/Fs in China were formed from impurities during the production of polychlorophenol, hexachlorobenzene, polychlorinated biphenyls, organic chlorinated pesticide and triclosan. In addition, sources of PCDD/Fs included municipal waste incineration, mineral fuel usage, open burning of electronic waste and crop residues, industrial waste discharge and vehicle exhaust emission. Due to potential human health risks from long-term exposure to PCDD/Fs at these hotspots, body loadings of these contaminants should be monitored. 相似文献
36.
中国台湾省学校实验废弃物的管理及启示 总被引:3,自引:0,他引:3
学校实验室产生的废弃物种类繁多,如果不经处理就直接排放,会对环境造成潜在威胁,不利于整个社会的可持续发展,因此有必要制订相关政策、法规,规范学校实验废弃物的收集、处理。中国台湾省已出台了一系列较为完备的法律、法规,在学校实验废弃物的管理方面也已形成一整套行之有效的管理制度、措施,对于学校实验废弃物的分类、贮存、清运及回收、申报管制、处理设施等方面的管理措施,内容具体,利于有效执行及监督,可为我们国内学校的相关管理提供借鉴。 相似文献
37.
高校参与社区精神文明建设的思考 总被引:1,自引:0,他引:1
高等院校汇集了多方面的人才,是社会主义精神文明建设的重要阵地。如何发挥其优势为社区精神文明建设服务?本文从多方面论述了高校主动参与社区精神文明建设的指导思想、意义、优势、思路和途径。 相似文献
38.
Background, Aims and Scope This research attempted to identify the dominant factors simultaneously affecting the airborne concentrations of five air
pollutants with principal component analysis and to determine the meteorologically related parameters that cause severe air-pollution
events. According to the definition of subPSI and PSI values through the U.S. EPA, the historical raw data of five criteria
air pollutants, SO2, CO, O3, PM10 and NO2, were calculated as daily subPSI values. In addition to the airborne concentrations,
this study simultaneous collected the surface meteorological parameters of the Taipei meteorological station, established
by the Central Weather Bureau.
Methods Principal component analysis was conducted to screen severe air pollution scenarios for five air pollutants: SO2, CO, O3,
PM10 and NO2. The concentrations of various air pollutants measured at 17 air-quality stations in northern Taiwan from 1995
to 2001 were transformed into daily subPSI values. The correlation analysis of the five air pollutants and four meteorological
parameters (wind speed, temperature, mixing height and ventilation rate) were included in this research. After screening severe
air pollution scenarios, this study recognized the synoptic patterns easily causing the severe air-pollution events.
Results and Discussion Analytical results showed that the eigenvalues of the first two principal components for SO2, CO, O3, PM10 and NO2 were greater
than 1. The first component of five air pollutants explained 64, 64, 67, 76 and 63% of subPSI variance for SO2, CO, O3, PM10
and NO2, respectively. Only the correlation coefficient of NO2 and CO had statistically significant positive values (0.82);
other pollutant pairs presented medium (0.4 to 0.7) or low (0 to 0.4) positive values. The correlation coefficients for air
pollutants and three meteorological parameters (wind speed, mixing height and ventilation index) were medium or low negative
values. In northern Taiwan, spring was most likely induced high concentrations and the component scores of the first component
for SO2, CO, PM10 and NO2; summer was the worst season that caused high O3 episodes. Consequently, the analytical results
of factor loadings for the first principal component and emission inventory of various sources revealed that mobile sources
were dominant factors affecting ambient air quality in northern Taiwan.
Conclusion According to the results of principal component analysis for the five air pollutants, the first two of 17 components were
cited as major factors and explained 71% of subPSI variance. Based on the inventory of NOx emissions and the isopleth diagram
of factor loading for the first component, mobile sources in the southwest Taipei City accounted for the highest factor loading
values and emission inventory values. Synoptic analysis and principal component analysis demonstrated that three types of
weather patterns (high-pressure recirculation, prefrontal warm sector and the southwesterly wind system) easily caused the
severe air-pollution scenarios. In summary, if severe air-pollution days occurred, the average meteorological parameters experienced
adverse conditions for diffusing air pollutants; that is, the average values of wind speed, mixing height and ventilation
index were lower than 2.1 ms-1, 360 m and 800 m2s-1, respectively. If one of the three synoptic patterns were to occur in
combination with adverse meteorological conditions, severe air-pollution events would be developed.
Recommendation and Outlook By utilizing synoptic patterns, this work found three weather systems easily caused severe air-pollution events over northern
Taiwan. Analytical results showed, respectively, the wind speed and mixing height were less than 2.1 m/s and 360 m during
severe air-pollution events. 相似文献
39.
以广东韶关粤台农业合作试验区兰花种植业为例,基于农户视角,构建三个维度下7个外因潜在变量,利用问卷调查数据,通过结构方程模型对台湾农业(兰花)技术扩散效果(内因潜在变量)的影响因素进行了分析。结果表明:农户社会网络与主观规范因素、农户对台湾农业的认知因素、台湾农业特点因素、台湾农业技术服务特点因素及基础条件因素等对兰花技术扩散效果具有显著正向影响,相应假设通过检验;农户创业特征及政策环境等两个因素对兰花技术扩散效果的影响不显著,相应假设未通过检验;试验区特殊的地域文化在促进兰花技术扩散的同时,也带来了一些消极影响;试验区应结合当地实际情况,根据兰花技术扩散的影响因素,制定合理的兰花产业发展对策。 相似文献
40.
强化高校法制教育刻不容缓 总被引:1,自引:0,他引:1
赫玉生 《中国环境管理干部学院学报》2003,13(1):63-65
在社会主义市场经济的新形势下,对高校师生的法律意识和法律素质的要求越来越高,本文针对高校部分师生的犯罪事实,阐明了强化高校法制教育的紧迫性,提出了强化高校法制教育的方式方法。 相似文献