(Modeling) Solve the problem.
Ozone Concentration Automobiles are a major source of tropospheric ozone (ground-level ozone). Ozone in outdoor air can enter buildings through ventilation systems. Guideline levels for indoor ozone are less than 50 parts per billion (ppb). In a scientific study, a Purafil air filter was used to reduce an initial ozone concentration of 140 ppb. The filter removed 43% of the ozone. (Source: Parmar and Grosjean, Removal of Air Pollutants from Museum Display Cases, Getty Conservation Institute, Marina del Rey, CA, 1989.)
(a) Determine whether this type of filter reduced the ozone concentration to acceptable levels. Explain your answer.
(b) What is the maximum initial concentration of ozone that this filter will reduce to an acceptable level?
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