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41.
随着经济的快速发展,港口已成为社会发展的重要支柱。但随之带来的是港口建设与环境保护之间的矛盾日益突出,因此必须实施港口规划环境影响评价。本文基于《规划环境影响评价技术导则》(试行),结合港口规划环评的特点,对港口规划环评的技术路线和评价内容进行了总结。评价重点内容从规划协调性分析、环境承载力、公众参与和风险评价四个方面进行了研究和总结,为其它港口总体规划环境影响评价工作提供参考和借鉴。 相似文献
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43.
Tommaso Sitzia Thomas Campagnaro Stefano Grigolato 《Journal of Environmental Planning and Management》2016,59(12):2251-2271
We propose a method for the appropriate assessment of adverse effects of roads in compliance with the European Union Habitats Directive. The method incorporates an analysis of ecological risk of edge effects by the proposed roads with the related increase in accessibility. The method was tested on 30 km of planned forest roads inside an 8,000-ha reserve included in two Natura 2000 sites. As a result, the cumulative effect of 19 road segments was judged as not significantly affecting the integrity of the sites, although they made accessible an extra 314 ha. On the basis of the accessibility calculation, 20 ha of land were set aside from forest exploitation as a mandatory mitigation measure. The method objectively determined the cumulative adverse effects, enabled comparison of plan revisions and alternatives and proved to measure direct and indirect significant effects with a realistic effort in terms of field survey and geographic information system processing. 相似文献
44.
新的《火电厂大气污染物排放标准》和新《环境保护法》实施后,燃煤火电企业的依法治企自觉性不断提高,但由于不同的环保管理文件对超标处罚依据和处罚手段不同,造成政府对企业处罚的自由裁量权加大,对企业造成一定的压力与困惑。结合企业实际运行情况对燃煤电厂大气污染物排放考核时间间隔提出建议。 相似文献
45.
Catchment-Wide Wetland Assessment and Prioritization Using the Multi-Criteria Decision-Making Method TOPSIS 总被引:1,自引:0,他引:1
It is widely accepted that wetland ecosystems are under threat worldwide. Many communities are now trying to establish wetland
rehabilitation programs, but are confounded by a lack of objective information on wetland condition or significance. In this
study, a multi-criteria decision-making method, TOPSIS (the Technique for Order Preference by Similarity to Ideal Solution),
was adapted to assist in the role of assessing wetland condition and rehabilitation priority in the Clarence River Catchment
(New South Wales, Australia). Using 13 GIS data layers that described wetland character, wetland protection, and wetland threats,
the wetlands were ranked in terms of condition. Through manipulation of the original model, the wetlands were prioritized
for rehabilitation. The method offered a screening tool for the managers in choosing potential candidate wetlands for rehabilitation
in a region. 相似文献
46.
47.
M. Delogu S. Maltese F. Del Pero M. Pierini A. Bonoli 《International Journal of Sustainable Engineering》2018,11(2):135-148
The objective of this paper is to discuss the main barriers for modelling and integrating the environmental performances in the automotive concept design. Incorporating environmental assessment in the early design phase of a vehicle component is known as an important challenge that car makers need to face in order to develop more sustainable design solutions; in this regard, the Life Cycle Assessment is the most widespread methodology for the environmental assessment and comparison of alternatives. The present work illustrates the combination of such methodology with the traditional design procedure at two different levels of the component design phase, material choice and concept design. In particular, the potential benefits originated by a lightweight solution for the automotive component Throttle Body are evaluated by considering environmental and technical implications at the same level. The case study shows that a multi-disciplinary approach for design effectively allows the integration of the environmental issue in the company’s established procedures. However, interpretation of results is still a challenging aspect due to the inevitable contradicting elements which should not discourage to develop comprehensive sustainability assessment within the early design stage. 相似文献
48.
This study investigated the levels, sources and ecological risks of 16 polycyclic aromatic hydrocarbons (PAHs) in two sediment cores that were collected along the Huaxi Reservoir. The spatial distributions and residue levels of the 16 priority PAHs in the sediments from the Huaxi Reservoir were analyzed for their potential ecological risk, source apportionment and contribution to the total PAH residue. The concentration level of the total PAHs (TPAHs) was in the range 1805 ng·g?1 to 20023 ng·g?1 based on dry weight, and the content of PAHs in the Huaxi Reservoir exhibited a gradual upward trend. The PAH congener ratios fluoranthene/(fluoranthene + pyrene) and indeno[1, 2, 3-cd]pyrene/(indeno[1, 2, 3-cd]pyrene + benzo[g, h, i]perylene) were used to identify the source. The main source of the low molecular weight PAHs was wood and coal combustion, whereas the high molecular weight PAHs were primarily from petroleum combustion sources. The results of an ecological risk assessment demonstrated that ACE poses a potential ecological risk, while FLU, NAP, ANT, BaP, DBA, PHEN and PYR can have serious ecological risks. 相似文献
49.
Current methods of estimating potential environmental impacts of metals in hazard and Life Cycle Impact Assessment (LCIA) do not consider differences in chemistry and landscape properties between geographic sites. Here, we developed and applied a model for regional aquatic impact characterization of metals using an updated method for estimating environmental fate factor (FF), bioavailability factor (BF) and aquatic ecotoxicity factor (EF). We applied the model to analyze differences in Comparative Toxicity Potentials (CTPs) of Cu, Ni and Zn for 24 Canadian ecoregions. The combined impacts of regional variability in ambient chemistry (in particular DOC, pH and hardness) and landscape properties (water residence time) can change the CTPs of these metals for freshwater by up to three orders of magnitude and change the relative ranking of metal hazard between ecoregions. Variation among Canadian freshwater chemistries and landscape characteristics influence the FFs within two orders of magnitude, BFs within two orders of magnitude for Ni and Zn and four orders of magnitude for Cu, and EFs within one order of magnitude. Sensitivity of metal FFs to environmental parameters alone spans three orders of magnitude when a constant water chemistry was used for all ecoregions. These results indicate that application of regionalised metal CTPs can have a significant influence in the analysis of ecotoxicological impacts in the life cycle assessment of products and processes. 相似文献
50.
巢湖流域水质状况与环境目标可达性分析 总被引:10,自引:3,他引:10
对巢湖湖区、巢湖环湖河流水质现状及变化趋势进行了调查。结果表明。“九五”以来,巢湖湖区水体以劣Ⅴ类为主;2000年以来,巢湖主要环湖河流中,南淝河、十五里河、派河和双桥河入湖常年水质为劣Ⅴ类,其主要污染物为氨氮。巢湖流域水体污染特征为:城市河段污染较重。点源污染较为集中;面源和生活污染贡献较大;从1998年以来,TP与TN质量浓度值一直处于较高水平。巢湖流域水质环境目标可达性分析表明,巢湖湖区整体上尚不能达到规划的目标。到2005年东半湖能稳定达标。南淝河能否实现达标排放。取决于合肥市的污水处理率及处理效果。十五里河、派河、双桥河水质受点源控制,只要加强管理,可达规划的目标。 相似文献