| Title | Summary | |
| Chemical Scorecard(Free) | SummaryPage |
| Chemical Sector of European Legislative Databases and Statistical Database (RISC)(Free) | SummaryPage |
| DAIN Metadatabase of Internet Resources for Environmental Chemicals | SummaryPage |
| Distributed Structure-Searchable Toxicity (DSSTox) Public Database Network | SummaryPage |
| Envirofacts Master Chemical Integrator (EMCI)(Free) | SummaryPage |
| Substance Registry System (SRS), formerly Chemical Registry System (CRS), EPA | SummaryPage |
| Substructure Search of SRC's Pointer File (18,620 chemicals)(Free) | SummaryPage |
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| EINECS-Plus (European Inventory of Existing Commercial Chemical Substances) | SummaryPage |
| Environmental Fate Data Base (EFDB)(Free) | SummaryPage |
| IRIS (Integrated Risk Information System), EPA(Free) | SummaryPage |
| IUCLID CD-ROM 2000 (International Uniform ChemicaL Information Database) | SummaryPage |
| Searching Geobase from ChemWeb.com | SummaryPage |
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| Acute Toxicity Database(Free) | SummaryPage |
| ARB Databases (some databases related to air pollution control) | SummaryPage |
| Atmospheric Chemistry Studies in the Oceanic Environment (ACSOE)(Free) | SummaryPage |
| Biocatalysis/Biodegradation Database, University of Minnesota(Free) | SummaryPage |
| Biodegradaion Database of Existing Chemicals, Japan(Free) | SummaryPage |
| Canadian National Atmospheric Chemistry (NAtChem) Database and Analysis System | SummaryPage |
| CHEM-BANK | SummaryPage |
| Chemical Safety NewsBase | SummaryPage |
| CIS (Chemical Information System) | SummaryPage |
| Comparative Toxicogenomics Database (CTD)(Free) | SummaryPage |
| Compilation of Ozone Depletion Potentials (ODP) and Global Warming Potentials (GWP)(Free) | SummaryPage |
| Database on Pesticides and the Environment(Free) | SummaryPage |
| ELINCS (European LIst of Notified Chemical Substances)(Free) | SummaryPage |
| Encyclopedia of Sustainable Development | SummaryPage |
| EPI Suite(Free) | SummaryPage |
| European Register of Marine Species (ERMS) | SummaryPage |
| EXTOXNET: Pesticide Information Profiles(Free) | SummaryPage |
| Geochemical Earth Reference Model (Chemical Characterization of the Earth, its major reservoirs and the fluxes between them) | SummaryPage |
| Haz-Map(Free) | SummaryPage |
| HazDat Database(Free) | SummaryPage |
| Henry's Law Constants (Solubilities)(Free) | SummaryPage |
| High Production Volume (HPV) Challenge Program, EPA, USA | SummaryPage |
| International Chemical Safety Cards (ICSCs)(Free) | SummaryPage |
| International Toxicity Estimates for Risk (ITER)(Free) | SummaryPage |
| IronRefs Database(Free) | SummaryPage |
| Nanogen Index II (NI2) | SummaryPage |
| National Geochemical Database, US | SummaryPage |
| National Pesticide Information Retrieval System (NPIRS) | SummaryPage |
| PBT Profiler | SummaryPage |
| Pesticide Active Ingredient Information at Cornell University(Free) | SummaryPage |
| Pesticide Fact File (PFF) | SummaryPage |
| Registry of Toxic Effects of Chemical Substances (RTECS) | SummaryPage |
| Searching Bretherick's Reactive Chemical Hazards Database from ChemWeb.com | SummaryPage |
| Spectrum Laboratories Inc | SummaryPage |
| The Risk Assessment Information System(Free) | SummaryPage |
| Toxic Substance Control Act Test Submission database (TSCATS)(Free) | SummaryPage |
| Toxicological Profile Information Sheet(Free) | SummaryPage |
| Toxics Release Inventory (TRI)(Free) | SummaryPage |
| TOXLINE(Free) | SummaryPage |
| Tropospheric Chemistry Modelling | SummaryPage |
| WebKis(Free) | SummaryPage |
| WMO World Data Centre for Greenhouse Gases (WDCGG, offered by Japan Meteorological Agency in cooperation with the World Meteorological Organization)(Free) | SummaryPage |
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