Acton Earth Day 1999

Earth Day model, 1999 Non-point source pollution

Visitors to Earth Day spread fertilizers, pesticides, herbicides, car oil, etc. (it's really instant drink mix for the demo), and then "rain" on the model (using a spray bottle).The non-point source pollution is washed into the storm drain as runoff, and then reappears in the stream as a dark plume.

See what the Acton Stream Teams did for Earth Day in 1999, 2000, 2001, 2002, 2003, 2004