A mold control program should include all of the following factors EXCEPT?

The correct reason that a mold control program should not include spraying with a 1000 mg/l quaternary ammonium compound is that while quaternary ammonium compounds (quats) can be effective as disinfectants on non-porous surfaces, they may not provide the same level of effectiveness against mold compared to other approaches. In mold remediation, specific methods are favored for their proven efficacy against mold spores and their growth, especially in more serious infestations.

On the other hand, the use of a sodium hypochlorite solution at 5000 mg/l is traditionally recognized for its strong antimicrobial properties and effectiveness at killing mold, making it a suitable choice for areas heavily affected by mold. Cleaning the affected area with an alkaline detergent is also a well-established practice, as it helps to remove organic materials that mold feeds on, which can assist in preventing regrowth. Furthermore, reapplication of quaternary solutions at lower concentrations can help maintain an environment that is less conducive to re-growth, although the initial stronger treatments are crucial for proper remediation.

Therefore, while quaternary ammonium compounds have their place in sanitization, they are less effective compared to the other specified methods in a comprehensive mold control strategy.