LandView(tm) III Help

Air Facilities

The Air Facilities data in LandView is extracted from the Aerometric 
Information Retrieval System (AIRS). Maintained by the Office of Air 
and Radiation, AIRS stores information on air quality, point source 
emissions, and area/mobile source data required by federal regulation 
from the 50 states. Monitoring is required for criteria pollutants 
(identified through the Clean Air Act) based on population, pollutant 
sources, geographical area, etc. Point sources emitting more than 100 
tons per year of any criteria pollutant (except 5 tons per year for 
lead and 1000 tons per year for carbon monoxide) must report actual 
or estimated annual emissions data. Data in the system is available 
to the public through agency publications in NTIS. LandView III uses 
the symbol "A" when displaying air facilities. The database structure, 
including field names, data types, field lengths, number of decimal 
places, and field descriptions for file AIR_FACL.DBF are as follows:

STATE C 2
State Abbreviation

STATE_CODE C 2
State FIPS Code

ST_COUNTY C 5
State and County FIPS CODE

PLT_ID C 4
Facility ID for Air Program

PLT_CDS C 5
Cross-reference ID to Compliance Data System

PLT_NAME C 40
Facility Name

PLT_ADDR C 30
Facility Street Address

SIC C 4
Standard Industrial Classification Code

PLT_CITY C 30
City Where Facility is Located

PLT_ZIP C 5
Zip Code of Facility

LONG_DMS C 7
Longitude Reported by Facility (degrees/minutes/seconds)

LAT_DMS C 7
Latitude Reported by Facility (degrees/minutes/seconds)

YEAR C 2
Reporting Year Varies by Facility

CO N 8 2
Carbon Monoxide Emissions (Tons/Year)

NO2 N 8 2
Nitrogen Oxides Emissions (Tons/Year)

PM10 N 8 2
Particulate Matter Emissions (< 10 microns)

SO2 N 8 2
Sulfur Dioxides Emissions (Tons/Year)

VOC N 8 2
Volatile Organic Compound Emissions (Tons/Year)

PT N 8 2
Total Particulate Emissions (Tons/Year)

PB N 8 3
Lead Emissions (Tons/Year)

LATITUDE C 10
Latitude in decimal degrees

LONGITUDE C 11
Longitude in decimal degrees

LL_METHOD C 2
Latitude and Longitude collection method

LL_ACCURAC N 7 1
Accuracy in meters associated with the Latitude and Longitude collection method

LL_DESCRIP C 2
Description of the Latitude and Longitude collection point

See Latitude & Longitude Collection Methods for a description of the lat/long collection fields.