Today is the final day of the search for a new executive director of Louisville’s Air Pollution Control District. Art Williams retired from the position this week.Bruce Traughber is heading up the search process for Metro Government."We will evaluate the breadth and depth of the responses to that. It was posted both locally and nationally with some of the leading air quality organizations in the country," said Traughber.Traughber says the Mayor will likely announce a hiring for the position in the next 30 to 45 days. The board at the Air Pollution Control District will have no role in the decision.