Data sources:
TOXNET	http://toxnet.nlm.nih.gov/
Pesticide Action Network Database	http://www.pesticideinfo.org/
Toxicology Data Review Summaries. CA EPA Dept. of Pesticide Regulation	http://www.cdpr.ca.gov/docs/toxsums/toxsumlist.htm
UK Pesticides Safety Directorate - Evaluations of fully or provisionally approved pesticides	http://www.pesticides.gov.uk/psd_evaluation_all.asp
EU: Existing active substances decisions and review reports (As of March 2005)	http://europa.eu.int/comm/food/plant/protection/evaluation/exist_subs_rep_en.htm
IRIS. US EPA database of human health effects.	http://cfpub.epa.gov/iris/index.cfm
PubMed: Good site. However it has made a political decision to not index the journal Fluoride.	http://www.ncbi.nlm.nih.gov/entrez/query.fcgi
Science Direct This is free with links to some full text articles	http://www.sciencedirect.com/science/publications/journal/chemistry
High Wire Press This is free and links to some full text articles	http://highwire.stanford.edu/
Scirus This is free and links to some full text articles	http://www.scirus.com/srsapp/
US National Pesticide Information Retrival System	http://ppis.ceris.purdue.edu/htbin/epachem.com
Compendium of Pesticide Common Names (Good for new pesticide listings)	http://www.alanwood.net/pesticides/
Environmental Health Criteria Monographs by the International Programme on Chemical Safety (IPCS)	http://www.inchem.org/pages/ehc.html
List of Chemicals Evaluated for Carcinogenic Potential Science. US EPA Office of Pesticide Programs. March 15, 2002	http://www.biomuncie.org/chemicals_evaluated_for_carcinog.htm
World Health Organization	WHO Recommended Classification of Pesticides by Hazard and Guidelines to Classification 2000-2002.
New Jersey Hazardous Substances Fact Sheets	http://www.state.nj.us/health/eoh/rtkweb/rtkhsfs.htm
IARC search site (International Agency for Research on Cancer)	http://monographs.iarc.fr/htdig/search.html
United States:
US EPA Office of Pesticide Programs	http://www.epa.gov/pesticides/
US EPA search site for pesticide residue limits on food	- The best site to use is the Code of Federal Regulations at: http://www.access.gpo.gov/nara/cfr/waisidx_04/40cfr180_04.html - Scroll down to find the name of the pesticide you are searching for. As of February 2005- This excellent site has been changed and is not as useful as it once was: http://www.epa.gov/pesticides/food/viewtols.htm
US EPA Food and Feed Commodity Vocabulary. All pesticide tolerances issued under 40 CFR part 180 will use these terms. FAN has consolidated the terms for easy reference.	By Group By Subgroup NEW: Pesticide Tolerance Nomenclature Changes. FINAL RULE. September 18, 2007. NOTE: The new changes have not yet been incorporated into the Groups and Subgroups listed above.
US Federal Register - Pesticides	http://www.epa.gov/fedrgstr/EPA-PEST/index.html
CA EPA - Search for Pesticide Products by Chemical Name	http://www.cdpr.ca.gov/docs/label/chemcode.htm
California pesticide use data and maps	http://docs.pesticideinfo.org/documentation4/whatsnewV4.0.html
CA EPA, Dept of Pesticide Regulation - search for chemical by name or CAS No.	http://www.cdpr.ca.gov/docs/epa/epachem.htm
Scorecard: US Environmental Defence Fund	http://www.scorecard.org/
October 2001. US FDA's references to the Code of Federal Regulations	Glossary of Pesticide Chemicals Also at: http://vm.cfsan.fda.gov/~acrobat/pestglos.pdf
MAPS. Listing of US pesticide use maps.	http://ca.water.usgs.gov/pnsp/use92/
US EPA Reregistration Eligibility Decision (RED) documents	http://www.epa.gov/pesticides/reregistration/status.htm
US EPA's Current List of Inerts (updated)	http://www.epa.gov/opprd001/inerts/lists.html
US EPA 2000 Toxic Release Inventory. Released on May 23, 2002. Only a limited number of pesticides are included in TRI.	http://www.epa.gov/triexplorer/
US EPA IRIS profiles (Integrated Risk Information Service)	http://www.epa.gov/iris/subst/index.html
US EPA Index of Cleared Reviews for pesticides	http://www.epa.gov/pesticides/foia/reviews/t.htm
New York State: List of registered pesticides for use in the state	http://www.dec.state.ny.us/website/dshmdata/pesticid/pestprod.pdf
New -  40 CFR 180.950. Tolerance exemptions for minimal risk active and inert ingredients.	http://www.fluorideaction.org/pesticides/cfr.180.950.html
US National Pesticide Information Retrival System	http://ppis.ceris.purdue.edu/htbin/epachem.com
Australia:
Australian Pesticides & Veterinary Medicines Authority	http://www.apvma.gov.au/
Aopril 7, 2003- Current List of approved active constitutents for chemical products.	http://www.apvma.gov.au/tgac/aa.pdf
December 2001 -	Residue defination of MRL names
April 5, 2001 -	Active constituents excluded from approval requirement
August 5, 2001 - ADI List	Acceptable Daily Intakes for Agricultural and Veterinary Chemicals Also at http://www.health.gov.au/tga/docs/pdf/adi.pdf
Canada:
Maximum Residue Limits	http://www.hc-sc.gc.ca/pmra-arla/english/legis/maxres-e.html
Pest Management Regulatory Agency	http://www.hc-sc.gc.ca/pmra-arla/english/index-e.html
EUROPA:
European Food Safey Authority - new	http://www.efsa.eu.int/
Existing active substances decisions and review reports (As of March 2005)	http://europa.eu.int/comm/food/plant/protection/evaluation/exist_subs_rep_en.htm
Annex 6 - Classification & Labelling of dangerous substances	http://ecb.jrc.it/classification-labelling/ Click on Annex VI also see http://www.labscan.ie/medical.html
Plant Health - Plant Protection	http://europa.eu.int/comm/food/plant/protection/evaluation/exist_subs_en.htm
Japan:
List of Maximum Residue Levels for individual pesticides	http://www.ffcr.or.jp/zaidan/psl.nsf/psl_all_e?OpenView&Start=1&Count=300
Pesticide MRL Database	http://www.nzfsa.govt.nz/plant/subject/horticulture/residues/japweb.pdf
Various other lists	http://www.ffcr.or.jp/zaidan/FFCRHOME.nsf/pages/e-lists
New Zealand:
Maximum Residue Limits	http://www.nzfsa.govt.nz/acvm/registers-lists/nz-mrl/index.htm
Database of currently registered pesticides	http://www.nzfsa.govt.nz/acvm/registers-lists/pesticides/index.htm
NZ Agricultural Compounds and Veterinary Medicines Group	http://www.nzfsa.govt.nz/acvm/
New Zealand Food Standards	http://www.anzfa.gov.au/
New Zealand Food Safety Authority	http://www.nzfsa.govt.nz/acvm/about/index.htm
Taiwan
Pesticide Residue Limits in Food	A-B - C-D - E-F - G-I - K-N - O-P - Q-T - V-X http://www.doh.gov.tw/english/ch10.html
U.K.
Pesticides Register of UK Approved Products	https://secure.pesticides.gov.uk/pestreg/
Pesticides Safety Directorate (PSD)	http://www.pesticides.gov.uk/home.asp
MAPS: What's in your backyard?	http://www.environment-agency.gov.uk/maps/ Anglian | Midlands | North East | North West | South West | Southern | Thames | Wales
Pesticide Action Network UK	http://www.pan-uk.org/
Vietnam:
June 29, 2000. Produced by the USDA Foreign Agricultural Service, Global Agriculture Information Network. (GAIN Report # VM0008).	Food and Agricultural Import Regulations and Standards, Country Report 2000. Also at: http://www.fas.usda.gov/GainFiles/200006/25698116.pdf