| Title: | Comparative analysis of formaldehyde and toluene sorption on indoor floorings and consequence on Indoor Air Quality |
| Author(s): | Plaisance H; Mocho P; Desauziers V; |
| Address: | "IPREM, IMT Mines Ales, Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, Pau, France. Universite de Pau et des Pays de l'Adour, E2S UPPA, Pau, France" |
| ISSN/ISBN: | 1600-0668 (Electronic) 0905-6947 (Linking) |
| Abstract: | "Indoor surfaces may be adsorptive sinks with the potential to change Indoor Air Quality. To estimate this effect, the sorption parameters of formaldehyde and toluene were assessed on five floorings by an experimental method using solid-phase microextraction in an airtight emission cell. Adsorption rate constants ranged from 0.003 to 0.075 m.h(-1) , desorption rate constants from 0.019 to 0.51 h(-1) , and the partition coefficient from 0.005 to 3.9 m, and these parameters vary greatly from one volatile organic compound/material couple to another indicating contrasted sorption behaviors. A rubber was identified as a sink of formaldehyde characterized by a very low desorption constant close to 0. For these sorbent floorings identified, the adsorption rates of formaldehyde are from 2 to 4 times higher than those of toluene. Two models were used to evaluate the sink effects of floorings on indoor pollutant concentrations in one room from different realistic conditions. The scenarios tested came to the conclusion that the formaldehyde sorption on one rubber (identified as a sink) has a maximum contribution from 15% to 21% for the conditions of low air exchange rate. For other floorings, the sorption has a minor contribution less than or equal to 5%, regardless of the air exchange rate" |
| Keywords: | "Air Pollution, Indoor/*statistics & numerical data Construction Materials/*analysis Environmental Monitoring Formaldehyde/analysis Toluene/analysis Volatile Organic Compounds/*analysis Spme emission cell indoor materials modeling partition coefficient sor;" |
| Notes: | "MedlinePlaisance, Herve Mocho, Pierre Desauziers, Valerie eng Research Support, Non-U.S. Gov't England 2020/06/09 Indoor Air. 2020 Nov; 30(6):1256-1267. doi: 10.1111/ina.12704. Epub 2020 Jul 7" |
