Animated Monthly Net Change of E. coli Concentrations in Iowa Watersheds

Using the Map

1. The map will animate automatically to show net changes in E. coli concentrations in Iowa watersheds from March 2020 (4) to November 2020 (11).
2. At any point, you can hover over the month label (on the right side) to stop the animation. Moving your cursor horizontally over the month label will automatically update the month that is shown on the choropleth (move left to decrease the month, right to increase the month).
3. Hover over a watershed to see a tooltip providing the watershed huc8 id and the net change in E. coli concentration for that given month.