North American Registries and Inventories:

U.S. Scorecard:
Scorecard is the U.S. equivalent of PollutionWatch. It contains information on pollution from the U.S. Toxics Release Inventory, and also has extensive information on hazardous chemicals and their health effects.
http://www.scorecard.org

National Pollutant Release Inventory:
The National Pollutant Release Inventory (NPRI) site is Environment Canada's registry of pollutant information. The site has a database with some search capabilities as well as background information on the registry.
http://www.ec.gc.ca/pdb/npri/

U.S. Toxics Release Inventory:
The U.S. Environmental Protection Agency's pollutant registry.
http://www.epa.gov/tri/

CEC "Taking Stock" reports:
The North American Commission for Environmental Cooperation (CEC) reports provide comparative data from the NPRI and the TRI regarding chemicals that are tracked under both systems.
http://www.cec.org/takingstock/

Mexican Registro de Emisiones y Transferencia de Contaminantes (RETC):
Information regarding the voluntary Mexican registry. (Spanish)
http://www.semarnat.gob.mx/

International Registry and Inventory Information:

UK Friends of the Earth Factory Watch:
Factory Watch is UK-based environmental information service for citizens in the manner of PollutionWatch and Scorecard.
http://www.foe.co.uk/campaigns/industry_and_pollution/factorywatch/

Environment Agency Pollution Inventory:
The official UK government's registry site.
http://www.environment-agency.gov.uk/pi

Australia National Pollutant Inventory:
The Australian registry of pollutant emissions.
http://www.npi.gov.au/

UN Environment Programme PRTRs information:
This site acts as a clearinghouse for information on PRTR activities from around the world.
http://www.chem.unep.ch/prtr/Default.htm

AARHUS Convention
Convention on Access to Information, Public Participation in Decision-making and Access to Justice in Environmental Matters Protocol on Pollutant Release and Transfer Registers
http://www.unece.org/env/pp/treat y text.htm

PollutionWatch Partners:

Canadian Environmental Law Association:
The Canadian Environmental Law Association is a non-profit, public interest organization and free legal advisory clinic established in 1970 to use existing laws to protect the environment and to advocate environmental law reform.
http://www.cela.ca

Environmental Defence:
Environmental Defence protects the environment and human health. We research. We educate. We go to court when we have to. All in order to ensure clean air, safe food and thriving ecosystems. Nationwide.
http://www.environmentaldefence.ca

Canadian Environmental Organizations:

Canadian Environmental Network:
The Canadian Environmental Network provides a directory of environmental organizations in Canada.
http://www.cen-rce.org/

Regional environmental networks:

Alberta Environment Network:
http://www.web.ca/~aen/

New Brunswick Environmental Network ~ Réseau environnemental du Nouveau Brunswick:
http://www.web.ca/nben

Manitoba Eco-Network:
http://www.web.ca/men

Nornet-Yukon:
mailto:nornet@polarcom.com

Ontario Environment Network:
http://www.oen.ca

Nova Scotia Environmental Network:
http://www.web.ca/~nsen/home

Réseau québécois des groupes écologistes:
http://www.rqge.qc.ca

Prince Edward Island Eco-Net de l'Île-du-Prince-Edouard Cooperative Ltd.:
http://www.isn.net/~network

Saskatchewan Eco-Network:
http://www.econet.sk.ca

Pollution Prevention:

Clean Production Action:
Clean Production Action is an international non-profit network dedicated to the advancement of sustainable production and consumption, taking the concepts and tools of cleaner production beyond the present process modification and emissions reduction focus.
http://www.cleanproduction.org

Toxics Use Reduction Institute:
The Massachusetts Toxics Use Reduction Institute promotes reduction in the use of toxic chemicals and the generation of toxic by-products in industry and commerce.
http://www.turi.org

Silicon Valley Toxics Coalition:
The Silicon Valley Toxics Coalition engages in research, advocacy, and organizing around the environmental and human health problems caused by the rapid growth of the high-tech electronics industry.
http://www.svtc.org/

Environment Canada National Office of Pollution Prevention:
Information on Canadian pollution prevention policy.
http://www.ec.gc.ca/nopp/

Canadian Centre for Pollution Prevention:
C2P2 has links to various Canadian pollution prevention activities.
http://www.c2p2online.com/

U.S. Environmental Protection Agency - Pollution Prevention:
EPA's pollution prevention information pages.
http://www.epa.gov/p2/

Occupational Health and Safety Resources:

Canadian Labour Congress:
The CLC has environmental information in its "organizing" section.
http://www.clc-ctc.ca

Canadian Centre for Occupational Health and Safety:
Information on workplace safety, although some services are restricted to subscribers.
http://www.ccohs.ca/