Indoor Surfaces Act as Massive Chemical Sponges, Retaining Harmful VOCs for a Year
2025-09-23
Researchers at UC Irvine have discovered that indoor surfaces, such as wood, cement, and paint, act as surprisingly effective reservoirs for volatile organic compounds (VOCs), retaining them for up to a year. These VOCs, originating from sources like insecticides, cigarette smoke, and wildfire smoke, pose significant health risks. The study reveals these surfaces absorb far greater amounts of VOCs than previously thought, acting like massive sponges. Even after the source is removed, VOCs slowly off-gas back into the air or transfer to humans through contact. Simple ventilation is insufficient; regular cleaning is crucial to remove these persistent contaminants.