Centers for Disease Control and Prevention (CDC)
Agency for Toxic Substances and Disease Registry (ATSDR) – U.S. Department of Health and Human Services provide detailed profiles of various hazardous substances.
Morbidity and Mortality Weekly Report (MMWR) – A weekly publication from the US Centre for Disease Control and Prevention, providing public health information and recommendations.
The National Institute for Occupational Safety and Health (NIOSH) – National Institute for Occupational Safety and Health (NIOSH) is a US Federal Agency that undertakes research and makes recommendations for the prevention of work-related injury and illness.
Royal Society of Chemistry
ChemSpider – A Royal Society of Chemistry database detailing a comprehensive range of different chemicals.
US Department of Labor
Occupational Chemical Database – The US Occupational Safety and Health database detailing a wide range of occupational chemicals.
Permissible Exposure Limits – Annotated Tables – The US Occupational Safety and Health database detailing annotated tables of Permissible Exposure Limits.
US Department of Justice
Emerging Threat Reports – Drug Enforcement Administration website that reports on emerging drug use trends.
Environmental Protection Agency (EPA)
Acute Exposure Guideline Levels for Airborne Chemicals – This US Federal agency acts as a guideline to provide specific concentrations of airborne chemicals at which health effects may occur.
ChemView – US Environmental Protection Agency database providing information on chemical health and safety data.
ECOTOX Knowledge base – US Environmental Protection Agency ECOTOXicology Knowledge base is a database that provides information on chemicals associated with environmental toxicity.
Integrated Risk Information System (IRIS) – Integrated Risk Information System provides a database that identifies and characterises health hazards of chemicals.
National Pesticide Information Centre – The National Pesticide Information Center is a call centre that provides information on pesticides and pesticide-related topics.
U.S. National Library of Medicine
ChemIDplus – Database provided by US National Library of Medicine (NLM) for identification of chemical substances cited in various NLM databases.
PubChem – US National Library of Medicine database providing access to chemical molecules and their biological activities.
PubMed – US National Library of Medicine database providing access to biomedical citations.
Toxicology and Environmental Health Information Program – Toxicology and Environmental Health Information Program database for related information across various US government agencies and organisations.
Poison Control Centres
AAPCC – American Association of Poison Control Centers isa health organization that represents 55 poison control centres in the US.
Online Poison Control – The Web Poison Control that is an interactive, fully-automated, virtual poison center.
TOXINZ – TOXINZ is the New Zealand Nation Poison Centre's comprehensive database on providing toxicology information on a wide range of poisons.
WHO (Poisons Centres) – The World Health Organization directory that provides contact details of all Poison Centres in the world.
Others
The Independent Forensic Practitioners Institute is an organisation whose members provide forensic expertise covering a wide range of associated disciplines.