Sometimes people can’t avoid being exposed to environmental contaminants or they may not know they are being exposed to them. People are exposed to different environmental contaminants for varying lengths of time and at different levels. This makes it hard to figure out how much exposure a person has had to any one substance or chemical. Also, exposure to a combination of environmental contaminants may increase a person’s risk more than each substance or chemical alone.
General information about the environment
This federal government resource provides information about pollution, weather, climate change, and federal activities that protect the environment. The site is a source of information about the National Pollutant Release Registry.
Environmental Protection Agency (EPA) (US)
The EPA is responsible in the United States for protecting human health and the environment. Its website provides information about pesticides, clean air, clean water, environmental contaminants and many other environmental issues.
California Environmental Protection Agency (US)
Like the federal EPA, the California EPA is responsible for protecting human health and the environment. As a result of Proposition 65 in that state, they produce a regularly updated list of chemicals that are known to cause cancer.
National Institute of Environmental Health Sciences (NIEHS) (US)
The NIEHS is focused on how the environment influences human disease. Their section on cancer contains an index of research examining various environmental factors that may be linked to cancer.
World Health Organization – Public Health and Environment
This section of the WHO website contains information about the potentially harmful effects of chemicals, radiation, air pollution, occupational health and climate change.
General information about cancer
Public Health Agency of Canada – Cancer
This site provides information about different types of cancer and about the Canadian government’s action plan to fight cancer through prevention, research, screening and other methods.
Centers for Disease Control and Prevention (CDC) – Cancer Prevention and Control (US)
The CDC is responsible for protecting human health and safety. The cancer section of their website contains information about research, statistics, prevention, survivorship and more.
International Agency for Research on Cancer (IARC)
IARC is part of the World Health Organization. Its objective is to promote international collaboration in cancer research. Their website provides access to a number of useful (but technical) resources including the IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Occupational health, safety and exposure
Canadian Centre for Occupational Health and Safety
This website provides information about occupational health and safety, including chemical profiles of over 1,200 substances and chemical hazard information for over 200,000 chemicals.
Health Canada – Healthy Environments and Consumer Safety
This website provides information about environmental contaminants, workplace safety, product safety and substance abuse.
This website provides general information about a large number of known or potentially cancer-causing substances. In addition, it provides estimates regarding how many Canadians are exposed to each substance in the workplace and in general.
National Institute for Occupational Health and Safety (NIOSH) – Occupational cancer (US)
NIOSH is focused on preventing work-related disease and injury. The cancer section of their website contains information about cancer clusters, carcinogenic agents found in the workplace, surveillance and health and safety standards in the US.
Information about toxic chemicals
Health Canada – Environmental Contaminants
This website provides information about the environmental impact of toxic substances, including lists of toxic substances and information about human biomonitoring studies being conducted in Canada.
Government of Canada – Chemical Substances
This website provides information about the federal government’s actions around chemical management and current chemical-related issues that affect Canadians.
National Library of Medicine ToxTown (US)
This website provides information about exposure to toxic chemicals at home, at work, at school, and in the community in everyday life. (Note that not all the substances are available in Canada.)