Which of the following is NOT a method to reduce VOC emissions from work activities?

• A. Local exhaust ventilation
• B. Process enclosures
• C. Solvent substitution
• D. Increase use of open systems

Answer: (D)

To cut VOC emissions from work activities, the emphasis is on capturing vapors at the source and lowering the amount of VOCs being used. Local exhaust ventilation pulls vapors away as they’re generated, directing them to filtration or exhaust so they don’t accumulate in the workspace. Process enclosures keep the process contained and connected to exhaust, limiting release to the surrounding air. Solvent substitution reduces emissions by choosing low-VOC or water-based alternatives instead of high-VOC materials. Increasing use of open systems does the opposite: it lets vapors escape more readily into the workspace and the environment, increasing emissions rather than reducing them.