摘要
通过对不同浓度的丙烯酸和丙烯酸甲酯样品进行分析,探讨了丙烯酸及丙烯酸甲酯质量浓度与臭气浓度(无量纲)之间的关联性。研究结果显示,两者总体上无明显线性关系,但随着气体浓度的减小,臭气浓度呈递减趋势;在丙烯酸和丙烯酸甲酯质量浓度1 mg/m3时,对应的厂界臭气浓度小于20,可近似视为该物质的嗅阈值;同时,嗅辨员对样品的感觉多处在"容易感觉"等级。
Through the analysis of acrylic acid and methyl acrylate samples of different concentrations, the correlation between odor concentration and mass concentration of acrylic acid and methyl acrylate is discussed. The research results showed that there was no obvious linear correlation between odor concentration and mass concentration while the odor concentration decreased as the mass concentration reduced; when the mass concentration was 1 mg/m^3 , the corresponding boundary odor concentration of acrylic acid and methyl acrylate was less than 20 which could be approximated as the odor threshold value; Meanwhile, panelists usually ranked the odor samples as ＂easy to sense＂ level.
出处
《环境影响评价》
2015年第3期87-89,共3页
Environmental Impact Assessment
关键词
环评
质量浓度
臭气浓度
关联性
异味物质
environmental impact assessment
mass concentration
odor concentration
correlation
odorous substance
