A weaving of total phosphorus recorded in the Boquet River 1990-2021 from long-term tributary monitoring March 1990 – October 2021.  Levels range from 4 – 620; red indicates a reading above 300 ug/L. Phosphorus is a key nutrient driving cyanobacterial blooms and lake managers are working hard to reduce phosphorus loading to Lake Champlain from the Boquet and other tributaries. Data are from the Lake Champlain Long-Term Water Quality and Biological Monitoring Project.

Creator: Kathy Kelley