National Ambient Air Quality Standards
E4935
The National Ambient Air Quality Standards are U.S. federal air pollution limits that set maximum allowable concentrations of key pollutants in outdoor air to protect public health and the environment.
Aliases (1)
- NAAQS ×3
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal standard
→
air quality standard → |
| abbreviation |
NAAQS
→
|
| administeredBy |
EPA
→
United States Environmental Protection Agency → |
| appliesTo |
all states
→
criteria air pollutants → tribal areas where approved → |
| attainmentAreaDefinedBy |
meeting NAAQS
→
|
| authorityType |
federal regulation
→
|
| country |
United States
→
|
| enforcementMechanism |
sanctions for state noncompliance
→
|
| firstPromulgatedBy |
United States Environmental Protection Agency
→
|
| firstPromulgatedYear |
1971
→
|
| hasType |
primary standard
→
secondary standard → |
| implementedThrough |
SIPs
→
State Implementation Plans → |
| includesMarginOfSafety |
true
→
|
| legalBasis |
Clean Air Act
→
Clean Air Act Section 109 → |
| measurementBasis |
concentration over specified averaging times
→
|
| nonattainmentAreaDefinedBy |
failure to meet NAAQS
→
|
| pollutantCovered |
PM10
→
PM2.5 → carbon monoxide → lead → nitrogen dioxide → ozone → particulate matter → sulfur dioxide → |
| primaryStandardProtects |
public health
→
|
| purpose |
protection of public health
→
protection of public welfare → |
| regulates |
maximum allowable ambient concentration of pollutants
→
|
| regulatoryCitation |
40 CFR Part 50
→
|
| relatedProgram |
New Source Review
→
PSD program → Prevention of Significant Deterioration → |
| relatedTo |
National Emission Standards for Hazardous Air Pollutants
→
|
| requiresReviewIntervalYears |
5
→
|
| reviewedBy |
EPA Administrator
→
|
| scientificBasis |
Integrated Science Assessments
→
air quality criteria documents → |
| scope |
ambient outdoor air
→
|
| secondaryStandardProtects |
public welfare
→
|
| shortName |
NAAQS
→
|
Referenced by (9)
| Subject (surface form when different) | Predicate |
|---|---|
|
Clean Air Act
("NAAQS")
→
National Ambient Air Quality Standards ("NAAQS") → |
abbreviation |
|
New Source Performance Standards
→
|
distinguishedFrom |
|
Clean Air Act
→
|
establishes |
|
United States Environmental Protection Agency
→
|
oversightOf |
|
NESHAP
→
|
relatedTo |
|
Clean Air Act
→
|
requires |
|
National Ambient Air Quality Standards
("NAAQS")
→
|
shortName |
|
Integrated Science Assessments
→
|
supports |