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Evaluating the dispersion of toxic odour emissions from complex sources

机译:评估来自复杂来源的有毒气味排放的扩散

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This article describes an original approach for evaluating exposure to toxic odour emissions, based on methods commonly used for assessing the impact of odour, adopted in this specific case to examine the non-carcinogenic health effects of odours in the city of Terni, Italy. First the hazardous volatile organic compounds emitted from the main odour sources were identified and quantified by chemical analysis. The Hazard Index (HI) was used to assess the toxicity associated with the emissions. The HI is the sum of the concentrations of the hazardous compounds weighted with their Reference Concentration (RfC). A RfC is the estimated continuous inhalation concentration at which people are unlikely to risk any deleterious effects during their lifetime. Atmospheric dispersion modelling was based on the Toxicity Emission Rate (TER) which, like the Odour Emission Rate (OER) conventionally used to quantify odour emissions, relates the HI with the air flow of an emission source; it is as a simple but effective method for the general characterization of toxic odour emissions in complex scenarios. The results indicated that citizens’ exposure to the non-carcinogenic toxic compounds involved in odour emissions was below the level expected to have adverse effects on human health. Classical risk assessment techniques should now be employed to define the pollutants and their effects better and to validate this approach.View full textDownload full textKeywordsIndustrial odour emissions, non-carcinogenic health effects, atmospheric dispersion modelling, Hazard Index, Reference ConcentrationRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/10934529.2012.668068
机译:本文介绍了一种基于通常用于评估气味影响的方法来评估有毒气味排放量的原始方法,该方法在此特定情况下用于检查意大利特尔尼市的气味对非致癌健康的影响。首先,通过化学分析鉴定并量化了主要气味源排放的有害挥发性有机化合物。危害指数(HI)用于评估与排放有关的毒性。 HI是危险化合物的浓度加上参考浓度(RfC)的总和。 RfC是估计的持续吸入浓度,在该浓度下,人们一生中不太可能冒任何有害作用。大气扩散建模基于毒性排放率(TER),就像通常用来量化气味排放的气味排放率(OER)一样,HI与排放源的气流相关;它是在复杂情况下一般表征有毒气味排放的一种简单而有效的方法。结果表明,公民对与气味排放有关的非致癌有毒化合物的暴露水平低于预期对人体健康产生不利影响的水平。现在应该采用经典的风险评估技术来更好地定义污染物及其影响并验证这种方法。查看全文下载全文关键字工业气味排放,非致癌健康影响,大气扩散模型,危害指数,参考浓度相关变量var addthis_config = {ui_cobrand :“ Taylor&Francis Online”,services_compact:“ citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more”,pubid:“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/10934529.2012.668068

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