ACID RAIN General information on acid rain. Grades 4-8. http://www.epa.gov/acidrain/education/
Water Science for Schools (USGS) http://ga.water.usgs.gov/edu/acidrain.html
ADVANCED INFORMATION ON ACID RAIN & ONLINE DATA RESOURCES Maine DEP's Acid Rain Info Page http://www.maine.gov/dep/air/acidrain/index.htm
Online data about acid rain. Grades 8-12. http://nadp.sws.uiuc.edu/
Acid Rain Impacts in Northeast North American (NEG/ECP) 2003 update
Assessment of Forest Sensitivity to Nitrogen and Sulfur depostion in Maine (Cd available on request) email: Maine DEP
