Experimental study on the uptake factor of tungsten oxide particles resulting from a dropped storage container

Zhi Gao, J. S. Zhang, Jerry G.A. Byington

Research output: Chapter in Book/Entry/PoemConference contribution

Abstract

The objective of this study is to develop a standard procedure to measure the airborne concentrations of different size particles within the vicinity of a dropped container where a significant portion of the contained powder is ejected. Tungsten oxide was selected in this study to represent relatively heavy powders. A typical can with the outer dimensions of 0.11 m diameter and 0.12 m tall was used as the container. The can was dropped in two different configurations: 1) without a lid, and 2) with a lid that has a 6.35 mm diameter hole. The tests were carried out in a full-scale stainless steel environmental chamber. By assuming the breathing rate of 1.2 m3/h of a person, the cumulative uptake amount was calculated. The calculated uptake factor during the first 10 minutes was between 10-9 and 2×108 in reference to the amount loaded, or between 10-8 and 6×10 -5 in reference to the amount spilled.

Original languageEnglish (US)
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages1149-1154
Number of pages6
StatePublished - Dec 1 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume2

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
Country/TerritoryUnited States
CityAustin, TX
Period6/5/116/10/11

Keywords

  • Dropped container
  • Full-scale chamber
  • Standard procedure
  • Tungsten oxide particles
  • Uptake factor

ASJC Scopus subject areas

  • Pollution

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