| Download | - View final version: Developing relationships between diffusive uptake rate and chemical properties for VOC sampling (PDF, 410 KiB)
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| Author | Search for: Won, Doyun1; Search for: Yang, Wenping1; Search for: Nong, Gang1 |
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| Affiliation | - National Research Council of Canada. Construction
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| Format | Text, Article |
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| Conference | The 16th Conference of the International Society of Indoor Air Quality & Climate (Indoor Air 2020), Nov. 1st, 2020, Held Online |
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| Physical description | 6 p. |
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| Subject | volatile organic compounds; passive sampling; thermal desorption |
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| Abstract | Diffusive sampling of volatile organic compounds (VOCs) on thermal desorption (TD) tubes is a useful technique to determine VOC levels in occupied homes due to its simplicity. Diffusive uptake rate (UR) is critical information for passive sampling. Relationships between UR and chemical properties were determined in a chamber (31 m³) with 52 VOCs. TD tubes tested included Carbopack B (CB), Tenax TA (TX) or Carbograph 5TD (CG5) for 4 to 8-day sampling. The results showed that the UR for TX had a positive relationship with boiling point for both polar and non-polar compounds. Diffusion coefficient (Da) was a better predictor of UR for CB and CG5. Interestingly, the UR of non-polar compounds showed a positive relationship with Da, while the opposite was observed for polar compounds on CB. The relationships determined in this study are expected to be useful in understating the levels of VOCs with no measured UR. |
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| Publication date | 2020-11-01 |
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| Publisher | International Society of Indoor Air Quality and Climate |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | ABS-0985 |
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| NRC number | NRC-CONST-56482E |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 6025af8b-c647-4f03-be42-648751210bd9 |
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| Record created | 2021-08-11 |
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| Record modified | 2021-08-11 |
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