Question : The potential for air pollution increases when the ventilation coefficient is:
Option 1: > 11,000 m2/s
Option 2: > 7,600 m2/s
Option 3: < 3,600 m2/s
Option 4: < 6,000 m2/s
Correct Answer: < 6,000 m 2 /s
Solution : The correct answer is < 6,000 m 2 /s.
When the ventilation coefficient reaches 6,000 m 2 /s, the possibility of air pollution increases. The ventilation coefficient measures the capacity of the atmosphere to diffuse and dilute pollutants. It is computed by multiplying the mixing depth by the average wind speed. A low ventilation coefficient indicates that the environment is not as effective in dispersing and diluting pollutants, which can result in a buildup of pollutants in the air, and raise the danger of air pollution.
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