Saint Louis County Department of Health - Pollen and Mold Center http://www.stlouisco.com/HealthandWellness Pollen and Mold Center. Saint Louis County, Missouri: Aeroallergen Reports Saturday Sunday 11 10 9 8 7 6 5 4 3 2 1 0 Mold Count: 4222 (Low) Mon, 17 Dec 2018 08:30:10 http://pollenandmold.stlouisco.com/Default.aspx http://pollenandmold.stlouisco.com/Default.aspx Air Quality for 12/17/2018: Not Monitored