Roundup (glyphosate active ingredient)

http://ace.ace.orst.edu/info/extoxnet/pips/glyphosa.htm

Arsenal (imazapyr active ingredient)

http://infoventures.com/e-hlth/pestcide/imazapyr.html

http://pmep.cce.cornell.edu/profiles/herb-growthreg/fatty-alcohol-monuron/imazapyr/herb-prof-arsenal.html

http://wwwsoc.nacsis.ac.jp/pssj2/tec_info/imazapyr.pdf

http://www.gov.on.ca/OMAFRA/english/crops/facts/notes/imazapyr.htm
 

The following link is the most complete document available and is very large, about 1.5 megabytes, and will take several minutes to load.

http://www.fs.fed.us/foresthealth/pesticide/safety_data/risk_assessments/imazapyrriskassessment.pdf