• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Patterns Of Voc And Btex Concentration In Ambient Air Around Industrial Sources In Daegu, Korea
【24h】

Patterns Of Voc And Btex Concentration In Ambient Air Around Industrial Sources In Daegu, Korea

机译：韩国大邱工业源周围环境空气中Voc和Btex浓度的变化规律

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Patterns of VOC and BTEX (Benzene, Toluene, Ethylvenzene, and Xylene) distribution at industrial emission sources, proximal residential areas of industrial estates, and ambient air were studied in Daegu, Korea. Daytime and night-time sampling was done at 12 sites and 9 emission sources to provide samples for analyses, using the TO-14 method. Measured BTEX component ratios B/T, T/EB, T/X and EB/X in ambient air were found to be 2.6 g, 11.3 g, 1.0 g and 1.2 g in the residential area; 2.2 g, 11.0 g, 1.0 g and 1.6 g in the commercial area; and 1.0 g, 14.9 g, 1.0 g and 1.3 g in the industrial area. The significant difference observed between the ratios for the residential and commercial areas implies that the two areas have different emission sources. This is also indicated by the significant differences observed between daytime and nighttime BTEX concentrations. Toluene and xylene were detected at very high concentrations, at the sampling sites. This pattern reflects the type of industrial processes and materials that are managed at the emission sources, as well as topographic/climatic factors that impact upon pollutant transport processes in the atmosphere. The BTEX distribution pattern in Daegu is observed to be similar to that of several Asian cities, particularly Hong Kong. These results are useful in the design of emission source control measures for VOCs and BTEX in Daegu.
机译：在韩国大邱，研究了工业排放源，工业区近端居民区和环境空气中VOC和BTEX（苯，甲苯，乙基苯和二甲苯）的分布模式。使用TO-14方法，在12个站点和9个排放源上进行了白天和晚上的采样，以提供分析样本。在居民区中测得的BTEX成分比B / T，T / EB，T / X和EB / X在居住区分别为2.6 g，11.3 g，1.0 g和1.2 g；商业区分别为2.2 g，11.0 g，1.0 g和1.6 g；在工业领域中分别为1.0 g，14.9 g，1.0 g和1.3 g。在住宅区和商业区的比率之间观察到的显着差异意味着这两个地区的排放源不同。白天和夜间BTEX浓度之间观察到的显着差异也表明了这一点。在采样点检测到很高浓度的甲苯和二甲苯。这种模式反映了在排放源处管理的工业过程和材料的类型，以及影响大气中污染物传输过程的地形/气候因素。据观察，大邱的BTEX分布格局与一些亚洲城市特别是香港相似。这些结果对于设计大邱VOC和BTEX的排放源控制措施很有用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号