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Investigation of Gaseous Pollutant Transport Efficiency as a Function of Tubing Material
Citation:
Yaga, R., C. Johnson, R. Vanderpool, K. Digby, C. Witherspoon, AND A. Whitehill. Investigation of Gaseous Pollutant Transport Efficiency as a Function of Tubing Material. National Ambient Air Monitoring Conference, Pittsburgh, PA, August 22 - 25, 2022.
Impact/Purpose:
The purpose of this research effort was to identify potential alternative transport materials and to determine the fractional transport efficiency of O3, NO2, SO2, and CO in the laboratory as a function of pollutant concentration. The repeatability of the tests was also to be measured along with determination of the need to passivate (i.e., precondition) the tubing with the pollutant of interest prior to testing.
Description:
This presentation will discuss study design, study results, and provisional recommendations for acceptable alternative transport materials as a function of pollutant type. Based on these results, EPA will consider revising the Part 58 regulations to include these identified alternative materials in addition to the currently approved borosilicate glass and FEP Teflon® materials.