Data · collection
Emissions Certification Database
Listed in NASA Earthdata CMR
The "Emissions Certification Database" contains emissions data on regulated pollutants (hydrocarbons, carbon monoxide, and oxides of nitrogen) from certain types of motor vehicles (automobiles and small trucks).
Description
Measurements are based on exhaust gases measured at the tailpipe. The measurements are taken by the USEPA's Office of Mobile Sources, and the vehicles represent all new domestic and imported consumer vehicles introduced into the United States nationally.
Test vehicles are selected based on the likelihood of being worst-case emitters. Each type of engine is tested once per year. The Emission Certification Database verifies emissions information supplied by manufacturers and is required under the Clean Air Act.
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The information is primarily used by the USEPA and manufacturers for regulatory purposes to ensure emission compliance. Some analytical results are confidential. Data Center: U.S. Environmental Protection Agency (USEPA) Dissemination Media: Hard copy (computer printouts), tape, diskettes, online, bulletin board File Format: Access Instructions: Contact the data center.
Size: Memory Requirements: Operating System: Hardware Required: Software Required: Availability Status: On Request Documentation Available: CONTENTS: Individual data entries and summary statistics.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214584892-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214584892-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Contaminant Levels/Spills · Emissions · Fossil Fuel Burning · Not provided · Particulates
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214584892-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality/emissions | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality/particulates | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/contaminant-levels-spills | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/fossil-fuel-burning | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |