• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Development of a Particulate Mass Measurement System for Quantification of Ambient Reactive Mercury
【24h】

Development of a Particulate Mass Measurement System for Quantification of Ambient Reactive Mercury

机译：开发用于环境反应性汞定量的颗粒质量测量系统

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

The Teledyne Advanced Pollution Instrumentation (TAPI) model 602 Beta~(plus) particulate system provides nondestructive analysis of particulate matter (PM_(2.5)) mass concentration. This instrument was used to determine if measurements made with cation exchange membranes (CEM) were comparable to standard methods, the β attenuation method at two locations in Reno, NV and an environmental β attenuation method and gravimetric method at Great Basin National Park, NV. TAPI PM_(2.5) CEM measurements were statistically similar to the other three PM_(2.5) methods. Once this was established, the second objective, a destructive method for measurement of reactive mercury (RM = gaseous oxidized and particulate bound Hg), was tested. Samples collected at 16.7 L per min (Lpm) for 24 h on. CEM from the TAPI were compared to those measured by the University of Nevada, Reno-Reactive Mercury Active System (UNRRMAS, 1 Lpm) CEM and a Tekran 2537/1130/1135 system (7 Lpm). Given the use of CEM in the TAPI and UNRRMAS, we hypothesized that both should collect RM. Due to the high flow rate and different inlets, TAPI data were systematically lower than the UNRRMAS. Correlation between RM concentrations demonstrated that the TAPI may be used to estimate 24 h resolution RM concentrations in Nevada.
机译：Teledyne高级污染仪器（TAPI）型号602 Beta〜（plus）微粒系统提供了对微粒物质（PM_（2.5））质量浓度的无损分析。该仪器用于确定用阳离子交换膜（CEM）进行的测量是否可与标准方法，内华达州里诺的两个位置的β衰减法以及内华达州大盆地国家公园的环境β衰减法和重量分析法相媲美。 TAPI PM_（2.5）CEM测量与其他三种PM_（2.5）方法在统计学上相似。一旦确定了这一目标，便会测试第二个目标，即一种用于测定活性汞的破坏性方法（RM =气态氧化和结合颗粒的汞）。样品以每分钟16.7升（Lpm）的速度采集24小时。将TAPI中的CEM与内华达大学，里诺反应性汞活性系统（UNRRMAS，1 Lpm）CEM和Tekran 2537/1130/1135系统（7 Lpm）进行了比较。考虑到在TAPI和UNRRMAS中使用了CEM，我们假设两者都应收集RM。由于高流速和不同的进样口，TAPI数据系统地低于UNRRMAS。 RM浓度之间的相关性表明，TAPI可用于估算内华达州24小时分辨率的RM浓度。

著录项

  • 来源
    《Environmental Science & Technology》 |2017年第1期|436-445|共10页
  • 作者

    Ashley M. Pierce; Mae Sexauer Gustin;

  • 作者单位

    Department of Natural Resources and Environmental Sciences, University of Nevada, Reno, 1664 N. Virginia St. Reno, Nevada 89557, United States;

    Department of Natural Resources and Environmental Sciences, University of Nevada, Reno, 1664 N. Virginia St. Reno, Nevada 89557, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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