👉 Dependent fumes are volatile organic compounds (VOCs) that originate from sources that are directly influenced by environmental conditions such as temperature, humidity, and air movement. Unlike non-dependent fumes, which can be emitted continuously regardless of these factors, dependent fumes tend to increase in concentration when exposed to higher temperatures or more humid conditions. For example, solvents like acetone and toluene, commonly used in paints and adhesives, release more vapor at warmer temperatures. Similarly, in industrial settings, the evaporation rate of these chemicals can be significantly higher in hot environments, leading to a rapid buildup of dependent fumes. This phenomenon poses health risks, including respiratory irritation, headaches, and, with prolonged exposure, more severe effects, making it crucial to monitor and control their levels in enclosed spaces.