Environmental Protection Agency:
Air-Quality and Air Pollution:
- AirData (EPA)
An overview of air pollution terminology and resources.
- Query AQS Data (EPA)
Recommended starting point for air quality data. Annual summaries
begin with 1957 and can be set to state, county, and city.
- Air Pollution Data
(EPA)
Recommended starting point for air pollution maps, monitors, and
facilities.
- AirNow
A cross-agency federal site useful for real-time air-quality indexing and
mapping.
- Colorado Air Pollution Control
Division
Current air quality and mapping for the state.
- Colorado Air
Quality Control Commission
Develops policies, regulates pollution sources, and holds hearings on
violations.
Climate and Precipitation:
- National Climatic Data
Center (NOAA)
Recommended starting point for current and historic climatic data and
measures.
- SNOTEL
(Natural Resources Conservation Service)
Recommended starting point for data pertaining to snow.
- Snow Information
(National Operational Hydrologic Remote Sensing Center)
This NOAA site provides national snow analyses and interactive maps.
Soil Information and Data:
- NRCS Soils Website (Natural
Resources Conservation Service)
Excellent portal for links to soil information.
- Soil Surveys (Natural
Resources Conservation Service)
Includes listings of print soil surveys and links to those online.
- Soil Data Mart (Natural
Resources Conservation Service)
Provides downloadable data for individual soil survey areas.
- Soil Survey Laboratory Research
Database (Natural Resources Conservation Service)
Allows users to generate and download reports on soil characterization.
- Web Soil Survey
(Natural Resources Conservation Service)
Soil maps and data for more than 95% of counties.
Water Information and Data and Water Quality: