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.

中文翻译：

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室内地板上甲醛和甲苯吸附的比较分析以及对室内空气质量的影响。

室内表面可能是吸附水槽，可能会改变室内空气质量。为了评估这种影响，在气密性发射池中使用固相微萃取通过实验方法在五个地板上评估了甲醛和甲苯的吸附参数。吸附速率常数范围为0.003至0.075 m·h ^-1，解吸速率常数范围为0.019至0.51 h ^-1，分配系数为0.005至3.9 m，并且这些参数从一种挥发性有机化合物/材料对到另一种挥发性有机化合物/材料对变化很大，表明吸附行为相反。橡胶被确定为甲醛的沉陷，其特征在于非常低的解吸常数接近于0。对于这些已确定的吸附地板，甲醛的吸附速率是甲苯的2至4倍。使用两种模型来评估地板在不同的实际条件下地板的水槽效应对室内污染物浓度的影响。测试的场景得出的结论是，在低空气交换率条件下，一种橡胶（标识为汇）上的甲醛吸附最大贡献为15％到21％。对于其他地板，