Chemical Hazard and Alternatives Toolbox
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Data Sources

The chemical hazard information contained in ChemHAT comes from the Chemical and Material Library (CML) created by the Healthy Building Network for its Pharos database of chemicals and materials in building products. The CML is a first-of-its-kind database that checks a library of over 22,000 chemicals and materials against 30 authoritative chemical hazard lists (see description below) ) and nine restricted substances lists developed by state, national, and international governmental agencies and other reputable, science-based non-governmental organizations.

When you look up a chemical in ChemHAT, you’ll find icons indicating the health effects the chemical can cause, as well as information about how you’re likely to be exposed to the chemical (e.g., by breathing it, or having it touch your skin or eyes.) If you’re interested in knowing where we got the information about that particular health effect, click on the “How We Know” link to the right of the hazard icon you’re interested in. Chemicals that have health effects icons in ChemHAT are verified by scientists as having specific effects on health or the environment (see below for an explanation of Authoritative Lists.)

Hazard Information and Authoritative Lists

There are two main types of lists associated with chemical hazards in the information we draw from Pharos: chemical hazard lists and restricted substance lists (RSLs). Here’s how Pharos describes their data sources:

A variety of state, national and international governmental bodies and non-governmental organizations (NGOs) maintain authoritative chemical hazard lists. These are lists of substances for which an authoritative body of scientists has undertaken a systematic review of scientific evidence and categorized the substances as having an association with a specific health or environmental hazard. Sometimes the lists will also categorize the strength of scientific evidence and certainty of the hazard (e.g., differentiating whether a substance is a “known” or “suspected” carcinogen).

Many organizations rely on these same authoritative lists to evaluate chemical hazards when looking for safer chemicals, materials and products, including companies, institutional purchasers, and governments. ChemHAT now makes this information available for workers.

Association of Occupational and Environmental Clinics

  • AOEC Exposure Codes - Asthmagen List

Cradle to Cradle Product Innovation Institute (C2CPII)

  • Banned Lists of Chemicals in the Cradle to Cradle Certified Product Standard – Version 3.0

Department of Toxic Substance Control (DTSC)

  • Safer Consumer Product Candidate Chemicals

State of California Environmental Protection Agency

  • Chemicals Known to the State to Cause Cancer or Reproductive Toxicity - California Proposition 65 - Safe Drinking Water and Toxic Enforcement Act Of 1986

Collaborative on Health and the Environment

  • Toxicant and Disease Database

ChemSec, The International Chemical Secretariat

  • SIN (Substitute It Now) List

European Commission

  • Classification, Labelling and Packaging Regulation (CLP) - Classification and Labelling Inventory - CMRs
  • Regulation on the Classification, Labelling and Packaging of Substances and Mixtures (CLP) Annex 6 Table 3-1 - GHS Hazard code criteria
  • European chemical Substances Information System (ESIS) - PBT List
  • Regulation (EC) No 1005/2009 of the European Parliament and of the Council of 16 September 2009 on substances that deplete the ozone layer - Controlled substances and new substances
  • EU Community Strategy for Endocrine Disrupters - Priority List
  • Restrictions On The Manufacture, Placing On The Market And Use Of Certain Dangerous Substances, Preparations And Articles - Carcinogens, Mutagens & Reproductive Toxicants
  • Commission Regulation (EC) No 987/2008 Annex I & 2 Exemptions from the Obligation to Register in acccordance with REACH article 2(7)a
  • Substances of Very High Concern for REACH Annex XIV authorisation (Article 59)
  • Substances with EU Risk & Safety Phrases (Commission Directive 67-548-EEC)
  • Directive on the Restriction Of the use of certain Hazardous Substances in electrical and electronic equipment ANNEX II

Oslo-Paris Convention Commission

  • Chemical Lists of Priority Action & Possible Concern

Environmental Health Perspectives

  • San Antonio Statement on Brominated and Chlorinated Flame Retardants

Environment Canada & Health Canada

  • Canadian Environmental Protection Act (CEPA) - Environmental Registry - Domestic Substances List (DSL)
  • Canadian Environmental Protection Act (CEPA) - Environmental Registry - Toxic Substances List (Schedule 1)
  • Canadian Environmental Protection Act (CEPA) - Environmental Registry - Virtual Elimination List

German Federal Environment Agency

  • Administrative Regulation on the Classification of Substances hazardous to waters into Water Hazard Classes (Verwaltungsvorschrift wassergefahrdende Stoffe)

MAK Commission of Germany (Deutsche Forschungsgemeinschaft)

  • List of Substances with MAK & BAT Values & Categories

Safer Chemicals, Healthy Families

  • Hazardous 100+ List of Chemicals of High Concern

Healthy Building Network

  • HBN Priority Building Material Asthmagens List

International Agency for Research on Cancer, World Health Organization

  • Monographs On the Evaluation of Carcinogenic Risks to Humans

Government of Japan

  • GHS Classifications

Republic of Korea - National Institute of Environmental Research

  • GHS Classification and Labelling for Toxic Chemicals

Lancet: authors Philippe Grandjean & Phil Landrigan

  • Developmental neurotoxicity of industrial chemicals, List of 201 Chemicals known to be neurotoxic in man

  • Living Building Challenge 2.1 - Red List of Materials & Chemicals

International Living Future Institute

  • Living Building Challenge 3.0 - Red List of Materials & Chemicals

New Zealand Environmental Protection Authority

  • New Zealand HSNO Chemical Classifications

State of Oregon Department of Environmental Quality

  • Priority Persistent Pollutant (P3) List


  • Precautionary List

Pattys Toxicology: author William K Boyes

  • Chemicals with occupational exposure standards based on nervous system effects (Boyes 2001)

Government of Québec

  • WHMIS-SIMDUT: Controlled Products Classifications

Quebec Workplace Health and Safety Commission (Commission de la santé et de la securite du travail (CSST))

  • Agents Causing Occupational Asthma With Key References

United Nations Environment Programme

  • Rotterdam Convention Prior Informed Consent (PIC) Annex III Chemicals
  • Stockholm Convention on Persistent Organic Pollutants (POPs) - Annex A, B & C and under Review

Silent Spring Institute

  • Mammary Carcinogens Review Database

The Endocrine Disruption Exchange (TEDX)

  • TEDX List of Potential Endocrine Disruptors

US Centers for Disease Control

  • NIOSH Carcinogen List

US Environmental Protection Agency

  • VOCs which have been determined to have negligible photochemical reactivity and so are exempt
  • Extremely Hazardous Substances - EPCRA Section 302
  • Global Warming Potentials of Ozone Depletors and Substitutes
  • Clean Air Act Amendments of 1990 List of Hazardous Air Pollutants
  • Integrated Risk Information System Database (IRIS)
  • Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Registered Pesticides (Selections)
  • Ozone-Depleting Substances (ODS) Class I & Class II
  • Risk Mangement Actions & TSCA Work Plans
  • Priority PBT Profiles
  • Priority Chemicals List
  • TRI PBT Chemical List

US Dept of Health & Human Services

  • Report on Carcinogens
  • Expert Panel Reports & Monographs on Reproductive and Developmental Toxicity

US Department of Labor

  • TRI Carcinogens

US Green Building Council

  • LEED Credits: Chemical Avoidance in Building Materials

State of Washington Department of Ecology

  • Chapter 173-333 WAC Persistent Bioaccumulative Toxins