共查询到19条相似文献,搜索用时 171 毫秒
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本研究采用层次分析法和数学模型法,围绕风险源、水生态状况、风控应急能力和环境事件发生等方面构建14个指标的饮用水源地环境风险评估指标体系,并对深圳市铁岗水库进行环境风险评估研究。结果表明,铁岗水库得分为2.44分,处于较高风险等级,其中农业用地指标和外来引水量指标处于高风险;治污截排工程指标、交通穿越道路指标和环境应急能力指标均为较高风险等级,其余均为低风险等级。通过对饮用水源地风险评估可有效识别存在的问题、短板及潜在风险,对深圳市提出饮用水水源地保护、水质安全保障等优化和改善建议,可为其他引水型城市饮用水源地环境风险防控和应急管理提供经验和借鉴。 相似文献
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国内燃煤电厂烟气脱硝还原剂主要为液氨与尿素,本文通过脱硝技术、风险、企业管理三个方面对液氨与尿素作为脱硝还原剂的选择进行分析。结果表明,从减少环境与安全风险,降低企业重大危险源数量及其环境风险等级的角度,以尿素作为脱硝还原剂有较大优势。 相似文献
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调查了佛山市行业企业4088家已完成突发环境事件应急预案备案的企业,通过大数据分析了上述企业环境风险区域分布情况、行业分布特征、防控设施情况,建立了地级市区域尺度的重大环境风险企业环境风险物质清单,可为研究区域环境风险提供参考,为区域突发环境事件防控提供技术支撑。 相似文献
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针对我国化工企业环境风险防范及应急管理的现状,文章从化工建设项目环境风险评价、应急预案编制、应急管理等方面,探讨了化工企业环境风险防范及应急管理的重要内容,并提出一些具体建议,旨在为企业的环境风险防范及应急管理工作提供一些参考。 相似文献
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In the E.U. following the old 5th Environmental Action Program (EAP) of 1994 and the new 6th EAP for the sustainable development in 2001, we confront the strategic management problem of aquatic resources at the regional and watershed level. What should be the goals for a new strategic management of natural and aquatic resources in a Region of Greece such as Thessaly? The present paper is concerned with the protection, prevention and strategic environmental planning of aquatic resources and water purification in the Thessaly basin as well as the protection of these resources from the pollution and depletion, which might result from various national water resource programs and plans which are already in operation. The aforementioned aim is a product of research on the goals, actions and proposals, which depict the problem of aquatic resource management related to pollution, the link with agricultural activities and the overall problem of water. Primarily, a general profile of the water situation and problems is presented for the Thessaly basin, including water pollution and the problems related to the rational management and protection of aquatic resources. Also, the prevention of natural water-involved disasters is explored which in turn points to the need for a new strategic scheme for environmental management of aquatic resources and purification and to the institution of new water policy actions and measures for the Thessaly basin in central Greece. 相似文献
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防范化工企业环境风险,减少环境事故,降低环境风险值,必须从环境风险发生的源头抓起,提高化工企业员工的环境风险认识水平和防范意识,做好化工企业环境风险源的识别、评估、监管,加强化工企业环境风险应急处置、预案及其演练等管理工作。 相似文献
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LNG项目在生产、储存、运输过程均存在一定的环境风险,文章就LNG项目存在的环境风险进行风险识别,并从选址、总图布置和建筑安全、危险化学品贮运、工艺技术设计、自动控制设计、电气和电讯、消防及火灾报警系统几方面提出风险防范措施,并要求企业根据环境污染事故应急预案编制技术指南制定厂区的应急预案,为同类型项目的建设及环境风险评价提出一些经验。 相似文献
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化工企业环境风险评价与管理初探 总被引:3,自引:0,他引:3
化工行业因其具有原料多样、生产工艺复杂、产品一般有毒危险、生产过程易产生“三废”等特点,十分有必要进行环境风险评价与管理。结合化工企业的特点,阐述了环境风险评价与管理的目的与重点,并在流程与方法上进行了初步探讨。 相似文献
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Jianing Wang Xinyan Li Weijin Yan Fang Wang Pei Ma 《Nutrient Cycling in Agroecosystems》2014,98(1):87-95
Rivers play a key role in linking between terrestrial and aquatic ecosystems, and are becoming important sinks of nitrogen (N). However, quantifying N export from terrestrial ecosystems to rivers at large scales is still challenging, due to the heterogeneous characteristics of watersheds in hydrology, land use, geology, climatology, etc. N export from terrestrial ecosystems to rivers is basically controlled by N balances and driven by hydrological processes. Here a model of watershed export coefficient (E ws ) of dissolved inorganic nitrogen (DIN) is proposed to describe the dynamic processes of DIN export to the river from non-point sources (NPS), with emphasis on the changing N balance and hydrology in the Changjiang River basin during the period 1970–2003. We found a significant relationship between E ws and the relative N surplus degree, which can predict the variation of E ws in the basin. Our study shows that E ws increased from 0.11 to 0.61 across the whole basin during the period, indicating E ws was dynamic rather than static through time. The amounts of NPS-DIN export to the river (W NPS ) increased from 0.22 × 103 to 4.54 × 103 kg km?2 year?1 in response to the increasing watershed N surplus during 1970–2003. The quick increase of W NPS and E ws demonstrate the diminishing capacity of terrestrial ecosystems to retain N as N surplus increased as a direct result of human activities. Our research helps researchers and policy makers to understand the mechanism of river N level in response to watershed N balance and hydrology processes. 相似文献