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.

All labels observed (2)

Label Occurrences
National Ambient Air Quality Standards canonical 10
NAAQS 3

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf United States federal standard
air quality standard
abbreviation National Ambient Air Quality Standards self-linksurface differs
surface form: NAAQS
administeredBy United States Environmental Protection Agency
surface form: 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 of America
surface form: 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
surface form: 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 NESHAP
surface form: National Emission Standards for Hazardous Air Pollutants
requiresReviewIntervalYears 5
reviewedBy Administrator of the Environmental Protection Agency (Cabinet-level)
surface form: EPA Administrator
scientificBasis Integrated Science Assessments
air quality criteria documents
scope ambient outdoor air
secondaryStandardProtects public welfare
shortName National Ambient Air Quality Standards self-linksurface differs
surface form: NAAQS

How these facts were elicited

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

United States Environmental Protection Agency oversightOf National Ambient Air Quality Standards
Clean Air Act establishes National Ambient Air Quality Standards
Clean Air Act abbreviation National Ambient Air Quality Standards
this entity surface form: NAAQS
National Ambient Air Quality Standards shortName National Ambient Air Quality Standards self-linksurface differs
this entity surface form: NAAQS
National Ambient Air Quality Standards abbreviation National Ambient Air Quality Standards self-linksurface differs
this entity surface form: NAAQS
CAA requires National Ambient Air Quality Standards
subject surface form: Clean Air Act
New Source Performance Standards distinguishedFrom National Ambient Air Quality Standards
NESHAP relatedTo National Ambient Air Quality Standards
Integrated Science Assessments supports National Ambient Air Quality Standards
Air Quality Program implements National Ambient Air Quality Standards
EPA Clean Air Scientific Advisory Committee focusesOn National Ambient Air Quality Standards
California air quality standards areStricterThan National Ambient Air Quality Standards