The emissions of volatile organic compounds (VOCs) from building materials may significantly contribute to indoor air pollution, and VOCs have been associated with odor annoyance and adverse health effects. Wood materials together with coatings are commonly used indoors for furniture and large surfaces such as walls, floors, and ceilings. This leads to high surface-to-volume ratios, and therefore, these materials may participate remarkably to the VOC levels of indoor environment. We studied emissions of VOCs and carbonyl compounds from pinewood (Pinus sylvestris) boards of 10% and 16% moisture contents (MC) with three paints using small-scale test chambers (27 L). The emissions from uncoated pinewood and paints (on a glass substrate) were tested as references. The 28-day experiment showed that the VOC emissions from uncoated pinewood were lower from sample with 16% MC. Painted pinewood samples showed lower emissions compared to paints on glass substrate. Additionally, paints on 16% MC pinewood exhibited lower emissions than on drier 10% MC wood. The emissions from painted pinewood samples were dominated by paint-based compounds, but the share of wood-based compounds increased over time. However, we noticed differences between the paints, and wood-based emissions were clearly higher with the most permeable paint.

中文翻译：

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油漆和水分含量对松木（Pinus sylvestris）板室内空气排放的影响

建筑材料中挥发性有机化合物 (VOC) 的排放可能会显着造成室内空气污染，并且 VOC 与气味烦恼和对健康的不利影响有关。木质材料和涂料通常用于室内家具和大型表面，如墙壁、地板和天花板。这导致高表面积与体积比，因此，这些材料可能会显着影响室内环境的 VOC 水平。我们研究了松木（Pinus sylvestris) 10% 和 16% 水分含量 (MC) 的板，使用小型试验箱 (27 L) 涂上三种涂料。未涂层松木和油漆（在玻璃基材上）的排放量作为参考进行了测试。为期 28 天的实验表明，未涂层松木的 VOC 排放量低于含 16% MC 的样品。与玻璃基材上的油漆相比，涂漆松木样品的排放量更低。此外，在 16% MC 松木上的涂料比在干燥的 10% MC 木材上表现出更低的排放。涂漆松木样品的排放主要是油漆基化合物，但木基化合物的份额随着时间的推移而增加。然而，我们注意到涂料之间的差异，渗透性最强的涂料的木基排放明显更高。