Teacher guide and student worksheet for calculating PTI.
This Pollution Tolerance Index (PTI) is currently used by all Pennsylvania volunteer citizen monitoring groups and the Department of Environmental Protection for their stream organism sampling. It is available as a Word Document online at http://creekconnections.allegheny.edu/TeacherResourceCenter/POLLUTION%20TOLER...
File 17901 is a 1.9MB Microsoft Word 2007 (.docx)
Uploaded:
Aug2 09
Last Modified: 2009-08-02 19:48:04
https://serc.carleton.edu/download/files/17901/teacher_guide_student_workshee.docx