Certified Human Resource Professional (CHRP) Complete Practice Exam 2025

The best control method for preventing poor air quality from becoming worse is point-of-contact control. This approach focuses on managing sources of air pollution directly at the point they occur. By implementing measures such as ventilation systems, air purifiers, or localized adjustments to processes that emit pollutants, it effectively addresses air quality issues before they can escalate.

Point-of-contact control emphasizes immediate action and intervention at the source of the problem, allowing for proactive management of air quality. This strategy can either eliminate pollutants or mitigate their release into the environment, thus preventing the situation from worsening.

In contrast, other methods such as pre-contact control might involve planning and prevention strategies for potential air quality issues but lack the immediacy required to address existing problems. Post-contact control measures tend to deal with the consequences after air quality has already deteriorated, making it less effective in preventing further decline. Hazard control focuses on identifying and managing risks but may not specifically target the air quality issues at hand.