EarthTrends- International environmental information portal. Searchable databases, tables and country profiles by topic.

Envirofacts - Queries, reports and maps from EPA Superfund (CERCLIS), drinking water, water contaminant, hazardous waste, toxic releases, grants funding, air pollution, facility information, brownfields and chemical databases.

HazDat -Information on the release of hazardous substances from Superfund sites or from emergency events and on the effects of hazardous substances on human health. Includes site characteristics, activities and site events, contaminants found, contaminant media and maximum concentration levels, impact on population, community health concerns, ATSDR public health threat categorization, ATSDR recommendations, environmental fate of hazardous substances, exposure routes, and physical hazards at the site/event. Also includes substance-specific information such as the ATSDR Priority List of Hazardous Substances, health effects by route and duration of exposure, metabolites, interactions of substances, susceptible populations, and biomarkers of exposure and effects.

HUD E-Maps - Combines information on HUD’s community development and housing programs with EPA’s environmental data.

Integrated Risk Information System (IRIS)  - Information on human health effects that may result from exposure to various chemicals in the environment. The information in IRIS is intended for those without extensive training in toxicology, but with some knowledge of health sciences, and for use in protecting public health through risk assessment and risk management.

Invasive Species Databases - Directory of expertise, general, terrestrial plant invaders, terrestrial animal invaders, aquatic plant invaders, aquatic animal invaders, microbial invaders, and regional databases.

National Library for the Environment - Country briefing books, Congressional Research Service reports and international, regional, national and local "state of the environment" reports and links to other resources from the National Council for Science and the Environment.

National Response Center Database - Oil and chemical spill data from 1982. Search by location, responsible party, type of spill.

Threatened and Endangered Species Information - Information, reports and maps of listed, proposed and and candidate threatened and endangered species and plants from the Fish and Wildlife Service. To search for reports, use the Environmental Conservation Online System.

Toxic Release Inventory (TRI) - Information about more than 650 toxic chemicals used, manufactured, treated, transported, or released into the environment. Manufacturers of these chemicals are required to report the locations and quantities of chemicals stored on-site to state and local governments.

TOXNET - Collection of databases on toxicology, hazardous materials and related areas. Databases provide factual information and bibliographic indexes to toxicological reports, studies and other publications.

UNEP.Net  - The U.N. Environment Network portal combines research from industry, academic, government and non-government sources. Includes national and regional environmental profiles and indicators, early warning of natural disasters and an atlas of protected areas.

USGS Water Resources of the United States - Over 100 years of water data; real-time data transmitted from selected surface-water, ground-water, and water-quality sites. Historical water-quality data from rivers and aquifers and historical ground-water level data.

Window to my Environment - Prototype to provide federal, state, and local information about environmental conditions and features in a specific area. Currently includes information for EPA Region III only (DC, DE, MD, PA, VA, WV). Information on air/climate, water, toxic releases, hazardous waste, superfund sites and brownfield areas.

Legal

ECOLEX - Gateway to environmental legal information. A joint project of the United Nations Environment Programme (UNEP) and IUCN-The World Conservation Union. Includes multilateral, international non-binding instruments, binding agreements of supra-national entities, national legislation, law and policy literature, court decisions, flora and fauna databases. Project is in the first phase of development.

Envirotext  - "One-stop shop" for U.S. environmental laws, regulations, and guidance as well as Native American Treaties and Constitutions.

International Environmental Agreements - full-text of over 140 agreements.
            

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