全文获取类型
收费全文 | 180篇 |
免费 | 1篇 |
国内免费 | 13篇 |
专业分类
安全科学 | 10篇 |
废物处理 | 23篇 |
环保管理 | 18篇 |
综合类 | 18篇 |
基础理论 | 35篇 |
污染及防治 | 48篇 |
评价与监测 | 29篇 |
社会与环境 | 12篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 3篇 |
2022年 | 21篇 |
2021年 | 15篇 |
2020年 | 6篇 |
2019年 | 9篇 |
2018年 | 15篇 |
2017年 | 9篇 |
2016年 | 9篇 |
2015年 | 7篇 |
2014年 | 5篇 |
2013年 | 26篇 |
2012年 | 16篇 |
2011年 | 12篇 |
2010年 | 8篇 |
2009年 | 4篇 |
2008年 | 3篇 |
2007年 | 5篇 |
2005年 | 5篇 |
2003年 | 2篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1997年 | 3篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有194条查询结果,搜索用时 15 毫秒
151.
Jan Amin Ullah Hadi Fazal Shah Abdullah Ditta Allah Nawaz Muhammad Asif Tariq Muhammad 《Environmental science and pollution research international》2021,28(32):43417-43430
Environmental Science and Pollution Research - Soil pollution due to potentially toxic elements is a worldwide challenge for health and food security. Chelate-assisted phytoextraction along with... 相似文献
152.
Biomonitoring of multi-element atmospheric deposition using terrestrial moss is a well-established technique in Europe. Although
the technique is widely known, there were very limited records of using this technique to study atmospheric air pollution
in Malaysia. In this present study, the deposition of 11 trace metals surrounding the main petroleum refinery plant in Kerteh
Terengganu (eastern part of peninsular Malaysia) has been evaluated using two local moss species, namely Hypnum plumaeforme and Taxithelium instratum as bioindicators. The study was also done by means of observing whether these metals are attributed to work related to oil
exploration in this area. The moss samples have been collected at 30 sampling stations in the vicinity of the petrochemical
industrial area covering up to 15 km to the south, north, and west in radius. The contents of heavy metal in moss samples
were analyzed by energy dispersive x-ray fluorescence technique. Distribution of heavy metal content in all mosses is portrayed
using Surfer software. Areas of the highest level of contaminations are highlighted. The results obtained using the principal
components analysis revealed that the elements can be grouped into three different components that indirectly reflected three
different sources namely anthropogenic factor, vegetation factor, and natural sources (soil dust or substrate) factor. Heavy
metals deposited mostly in the distance after 9 km onward to the western part (the average direction of wind blow). V, Cr,
Cu, and Hg are believed to have originated from local petrochemical-based industries operated around petroleum industrial
area. 相似文献
153.
The aim of this study is to determine the contents of aluminum, iron, manganese, nickel, copper, zinc, chromium, cadmium, lead, and mercury in sediments at 1–30?m depths of the Band?rma and Erdek Gulfs in the Southern Inner Shelf of the Marmara Sea. Sediment samples were collected from different depths (1?m, 5?m, 10?m, 20?m, 30?m) at each region in February 2008. Primary hydrographic conditions, such as temperature (6.6–14.5°C), salinity (22.6–26.875 psu), percentage of dissolved oxygen saturation (35–83 %), and pH (8.0–8.4) were recorded for each sampling point. Moreover the total organic carbon (0.5–2.9%) and the total calcium carbonate contents (0.8–60%) of sediment samples were determined. In surface sediments of both gulfs, Pb (21–62?mg?kg?1) and Cd (0.52–0.86?mg?kg?1) contents were determined to be higher than the shale average (Pb 20?mg?kg?1, Cd 0.2?mg?kg?1) while the other metal contents were measured to be lower in general. On the other hand, generally Hg (0.06–1.1?mg?kg?1) contents were higher than the shale average (0.3?mg?kg?1)at all of the examined stations in the Band?rma Gulf and lower than the shale average in the Erdek Gulf. 相似文献
154.
Pauzi Abdullah MD. Hamonangan Nainggolan 《Environmental monitoring and assessment》1991,19(1-3):423-431
Phenolic chemicals with their very low taste and odour thresholds, high persistence and toxicity, are of growing concern as water pollutants. The compounds are known to exist in raw water as well as in treated water. The level of phenolic priority pollutants in water within the catchment area of the Linggi River Treatment Plant in Negeri Sembilan, Malaysia, which includes the Linggi river basin, was monitored. The 4-aminoantipyrin colourimetric method was used to determine total phenols whereas capillary column gas chromatography was used to determine the individual compounds. The results show that at most sampling stations, particularly those within the Seremban municipality, the level of phenols was found to exceed the recommended Malaysian standard of 2.0 g/L-1 for raw water. This is seen as the direct impact of industrial and urbanization of the area and clearly indicates the unhealthy state of the Linggi river. The results also indicate the need to improve the water quality if the river is going to be used as a source of raw water. 相似文献
155.
Fehmi Burak Alkas Jehad Abdullah Shaban Ayca Aktas Sukuroglu Mehmet Ali Kurt Dilek Battal Sahan Saygi 《Environmental monitoring and assessment》2017,189(10):516
The presence of heavy metals/metalloids in the ecosystem has been an increasing ecological and global public health concern due to their potential to cause adverse health effects. For this reason, the accumulation of some heavy metals such as Cr, Mn, Ni, Cu, As, Cd, Pb was assessed by way of ICP-MS in water, sediment and fish (Cyprinus carpio) sampled from Gonyeli Lake, North Cyprus. The results showed that these metals/metalloids are found widespread throughout the study area. In water, most concentrated element was manganese with 92.1 ppb and least concentrated was lead with 0.914 ppb. In sediment, copper had the highest concentration with 613 ppm, and cadmium the lowest with 1.57 ppm. In fish tissues (muscle and gills), the most concentrated element was manganese with 12.5 ppm and the least concentrated cadmium with 0.017 ppm. These results indicate that future remediation efforts are indispensable for the rehabilitation of the lake. 相似文献
156.
Muhammad Wasim Shahrukh Shoaib N. M. Mubarak Inamuddin Abdullah M. Asiri 《Environmental Chemistry Letters》2018,16(3):861-879
Deterioration of buried metal pipes due to corrosive soil environment is a major issue worlwide. Although failures of buried pipe due to corrosive soil is an old problem, yet such failures are still uncontrollable even with the application of advanced corrosion protection technologies. Therefore, understanding factors causing corrosion of buried pipes is necessary. This article reviews factors causing corrosion of buried pipes in soils. Factors include moisture content, soil resistivity, pH, dissolved oxygen, temperature and microbial activity. Moreover, we discuss the influence of manufacturing method and the comparison of corrosion behaviour of cast iron, ductile and mild steel pipes. We found that corrosion rate of pipes increases with moisture contents up to the critical moisture value. Although pH affects corrosion, there is no relationship between corrosion and pH and the corrosion rates of buried pipes are inversely proportional to soil resistivity. Soils containing more organic matter show high resistivity. Dissolved oxygen in soil develops differential cell which accelerates corrosion of metallic pipe. Different types of bacteria present in soil develop biofilms on metallic pipes, which deteriorates pipes with time. 相似文献
157.
Abdullah E. Akay Fatih Sivrikaya Sercan Gulci 《Environmental monitoring and assessment》2014,186(5):2741-2747
Riparian forests adjacent to surface water are important transitional zones which maintain and enrich biodiversity and ensure the sustainability in a forest ecosystem. Also, riparian forests maintain water quality, reduce sediment delivery, enhance habitat areas for aquatic life and wildlife, and provide ecological corridors between the upland and the downstream. However, the riparian ecosystems have been degraded mainly due to human development, forest operations, and agricultural activities. In order to evaluate the impacts of these factors on riparian forests, it is necessary to estimate trends in forest cover changes. This study aims to analyze riparian forest cover changes along the Firniz River located in Mediterranean city of Kahramanmaras in Turkey. Changes in riparian forest cover from 1989 to 2010 have been determined by implementing supervised classification method on a series of Landsat TM imagery of the study area. The results indicated that the classification process applied on 1989 and 2010 images provided overall accuracy of 80.08 and 75 %, respectively. It was found that the most common land use class within the riparian zone was productive forest, followed by degraded forest, agricultural areas, and other land use classes. The results also indicated that the areas of degraded forest and forest openings increased, while productive forest and agricultural areas decreased between the years of 1989 and 2010. The amount of agricultural areas decreased due to the reduction in the population of rural people. According to these results, it can be concluded that special forest management and operation techniques should be implemented to restore the forest ecosystem in riparian areas. 相似文献
158.
Assessment of heavy metals contamination in soils surrounding a gold mine: comparison of two digestion methods 总被引:1,自引:0,他引:1
This study investigated two digestion methods (USEPA 3051: microwave, HNO3 or Hossner: hot plate, HF–H2SO4–HClO4) for heavy metals analysis in contaminated soil surrounding Mahad AD'Dahab mine, Saudi Arabia. Moreover, contamination metal levels were estimated. The Hossner and USEPA 3051 methods showed, respectively, average total contents of 17.2 and 18.1 mg kg?1 for Cd, 11.6 and 10.6 mg kg?1 for Co, 45.7 and 34.7 mg kg?1 for Cr, 1030 and 1100 mg kg?1 for Cu, 33,300 and 27,400 mg kg?1 for Fe, 963 and 872 mg kg?1 for Mn, 33.2 and 22.8 mg kg?1 for Ni, 791 and 782 mg kg?1for Pb, and 6320 and 2870 mg kg?1 for Zn. A lack of significant differences and a high correlation coefficient (>90%) for Cd, Pb and Cu between the two digestion methods suggest that the total-recoverable method (USEPA 3051) may be equivalent to the total-total digestion method (Hossner) for determining these metals in the studied soil. However, significantly higher concentrations of Cr, Fe, Ni and Zn were found by the Hossner method comapred with the USEPA 3051 method. The soil samples have very or extremely high levels of Zn, Cu, Cd and Pb contamination, indicating very high potential ecological risk. 相似文献
159.
Highland catchments in tropical regions are frequently subjected to soil erosion and the transport of chemicals downstream.
Any drastic changes in land use will increase the severity of these processes of land degradation. A simulation study using
GLEAMS (Groundwater Loading Effects of Agricultural Management Systems) was conducted at a catchment presently under tea farming
in Cameron Highlands, Malaysia. Soil, water and nutrient transport associated with several alternative land uses was studied.
In addition, the effect of a disruptive form of land clearing on soil, water and nutrient losses was also investigated. Modelling
with GLEAMS required information from field measurements and observations, laboratory analyses, guide tables, industry records,
maps and reports published by soil survey and meteorological departments.
The most critical step in simulating soil and water movement using GLEAMS is the identification of a representative flow sequence.
In the catchment under study, the representative flow sequence was overland flow–channel 1–channel 2. Input data on soil erodibility,
porosity and surface roughness were manipulated to represent various degrees and forms of disturbance to the surface soil
layer. For all land uses studied, the highest soil loss was predicted for the overland flow area where slope gradient is high
and the soil friable. The variations in soil loss, runoff and nutrient loss between landscape elements and between land uses
were consistent with soil erosion features observed in the field. Soil and nutrient losses were substantial for crops such
as cabbage that required land shaping activities and frequent ploughing of the soil. Predicted data on enrichment ratio of
specific surface (ERSS) are consistent with nutrient enrichment processes in the field and could prove to be useful in studies
on chemical transport in highland catchments. 相似文献
160.
Alpaslan Duygu Olak Tulü Turan Abdullah Ersen Dudu Tuba Aktas Nahit 《Journal of Polymers and the Environment》2022,30(2):666-680
Journal of Polymers and the Environment - In this study, six different organo-hydrogel containing Agar-Glycerol (AG) based Coconut Oil (CnO) were synthesized using different crosslinkers to ensure... 相似文献