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浅谈甲醇项目环境风险评价 总被引:1,自引:0,他引:1
环境风险评价是甲醇项目环境影响评价中的一项重要内容。结合个人工作实践,以某甲醇建设项目为例,对化工建设项目环境风险评价程序中风险识别、源项分析、后果计算、风险计算和评价、风险管理等方面的内容及评价方法进行了介绍,并对甲醇项目的环境风险应急预案编制进行探讨。 相似文献
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围绕环境风险评价的基本概念、在国内外的发展,结合化工行业的风险特点,阐述了在化工行业进行环境风险评价的重要意义。在《建设项目环境风险评价技术导则》基础上,提出了化工行业环境风险评价的方法。通过对某化工集团合成氨项目的实例分析,运用事故树方法分析事故发生最可能的原因,并估算事故发生产生的危害,对该项目环境风险做了一个初步的评价,对某化工集团的环境风险管理提出了建议。 相似文献
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结合石化企业的行业特点,以某石化企业甲醛生产项目为例,开展大气环境风险影响评价,进行环境风险识别、风险事故情形分析及大气环境风险预测与评价,确定了最大可信事故、事故源强及事故最大影响范围,并结合本项目提出石化行业建设项目环境风险管理和突发环境事件应急预案编制要求,为甲醛生产项目及石化项目的大气环境风险评价工作提供技术参... 相似文献
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煤化工项目具有高污染性,对于环境有着十分不利的影响。煤化工项目实施环境存在一定的风险性,加强煤化工项目的风险评估对于减少煤化工项目对于环境的污染有着十分重要的作用,并且加强煤化工项目的实施风险也是当前环境保护的需要。本文主要是对当前煤化工项目实施环境风险评价的重要性进行分析,并就如何加强煤化工项目的实施环境风险评价提出合理的建议。 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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Yin-hai Lang Guo-Liang Li Wei Yang Xiao-Mei Wang Peng Peng 《Polycyclic Aromatic Compounds》2013,33(4):425-438
Forty one soil samples were collected from Liaohe estuarine wetland in May 2009 for assessing the distribution, ecological risk, and health risk of dioxin-like PCBs (dl-PCBs). The total concentrations of 12 dl-PCBs ranged from 0.36–1.36 ng/g, with a mean value of 0.77 ng/g. The dominant dl-PCBs were Tetra-CBs, which contributed to 43.9% of the total. The ecological risk of dl-PCBs was analyzed based on the toxic equivalent (TEQ) approach. In this study, the TEQ concentrations of dl-PCBs in soils varied from 0.06–22.55 pg/g, with a mean value of 8.18 pg/g. Human health risk was evaluated based on the non carcinogenic and carcinogenic risk method. Non carcinogenic risk was measured using a hazard quotient (HQ) values for 95% upper control limit (UCL) and maximum concentrations of dl-PCBs. HQ values were lower than 1 under both exposure scenarios, which indicated that the non carcinogenic risk of dl-PCBs was negligible. Carcinogenic risk was estimated based on the criteria of ingestion, dermal contact and inhalation of soils. Carcinogenic risk values were less than 10?6, which exhibited negligible cancer risk for infant, child and adult, respectively, through ingestion, dermal contact, and inhalation pathway. 相似文献
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在石化生产装置安全管理工作中运用风险管理体现了预防为主的原则,具有事前预防和持续改进的特点。文章以催化裂化装置为例提出危害因素辨识是风险管理的核心,是建立风险管理体系的前提和出发点,要全面、准确、科学地开展风险管理工作,进行危险点分析预控排除风险,同时要对危险因素进行持续改进,针对实践中所发现的缺陷、不足或变化的内外部条件,采取纠正和预防措施。 相似文献
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炼油企业在生产经营中存在着各种风险,结合企业的生产实际,对“评价和风险管理”过程中安全评价技术的选择进行分析,采取有利措施将风险降到尽可能低的水平。 相似文献
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利用风险管理的理论进行管理,有效规避风险,已经成为各行各业进行现代管理的重要手段之一。浅述了风险管理的基本理论并对利用全面风险管理方法规避审核风险进行了探讨。 相似文献
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简要介绍了国外EPC工程项目的运输风险(包括外来风险和海上风险)识别。在此基础上,从运输条款、货物包装、租船订舱、货物装卸、海运订单和运输途中六个方面详细介绍了实际的国外EPC项目运输操作各个环节的风险评估和防范措施。 相似文献
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Coronary artery calcium (CAC) has been advocated as one of the strongest cardiovascular risk prediction markers. It performs better across a wide range of Framingham risk categories (6%–10% and 10%–20% 10-year risk categories) and also helps in reclassifying the risk of these subjects into either higher or lower risk categories based on CAC scores. It also performs better among population subgroups where Framingham risk score does not perform well, especially young subjects, women, family history of premature coronary artery disease and ethnic differences in coronary risk. The absence of CAC is also associated with excellent prognosis, with 10-year event rate of 1%. Studies have also compared with other commonly used markers of cardiovascular disease risk such as Carotid intima-media thickness and highly sensitive C-reactive protein. CAC also performs better compared with carotid intima-media thickness and highly sensitive C-reactive protein in prediction of coronary heart disease and cardiovascular disease events. CAC scans are associated with relatively low radiation exposure (0.9–1.1 mSv) and provide information that can be used not only for risk stratification but also can be used to track the progression of atherosclerosis and the effects of statins. 相似文献
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