Data / Median Air Quality Index (US EPA) / Providence County

Median Air Quality Index (US EPA) in Providence County

Median Air Quality Index (US EPA) in Providence County was 39 in 2025, according to the U.S. Environmental Protection Agency. That is up 1 from 2024.

2025, index39
Change on 2024+1
Series high581980
Series low371992

Next release: Tuesday, 13 July 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Median Air Quality Index (US EPA) in Providence County, 1980 to 2025

35404550556019801987199420012008201520251980: 58 index1981: 51 index1982: 51 index1983: 52 index1984: 49 index1985: 47 index1986: 43 index1987: 42 index1988: 43 index1989: 42 index1990: 40 index1991: 40 index1992: 37 index1993: 38 index1994: 41 index1995: 39 index1996: 42 index1997: 40 index1998: 40 index1999: 52 index2000: 53 index2001: 55 index2002: 53 index2003: 54 index2004: 52 index2005: 52 index2006: 50 index2007: 47 index2008: 49 index2009: 44 index2010: 43 index2011: 48 index2012: 49 index2013: 52 index2014: 47 index2015: 52 index2016: 49 index2017: 45 index2018: 47 index2019: 46 index2020: 45 index2021: 45 index2022: 43 index2023: 46 index2024: 38 index2025: 39 index3040506019801996201220251980: 58 index1981: 51 index1982: 51 index1983: 52 index1984: 49 index1985: 47 index1986: 43 index1987: 42 index1988: 43 index1989: 42 index1990: 40 index1991: 40 index1992: 37 index1993: 38 index1994: 41 index1995: 39 index1996: 42 index1997: 40 index1998: 40 index1999: 52 index2000: 53 index2001: 55 index2002: 53 index2003: 54 index2004: 52 index2005: 52 index2006: 50 index2007: 47 index2008: 49 index2009: 44 index2010: 43 index2011: 48 index2012: 49 index2013: 52 index2014: 47 index2015: 52 index2016: 49 index2017: 45 index2018: 47 index2019: 46 index2020: 45 index2021: 45 index2022: 43 index2023: 46 index2024: 38 index2025: 39 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 46 values
Periodindex
202539
202438
202346
202243
202145
202045
201946
201847
201745
201649
201552
201447
201352
201249
201148
201043
200944
200849
200747
200650
200552
200452
200354
200253
200155
200053
199952
199840
199740
199642
199539
199441
199338
199237
199140
199040
198942
198843
198742
198643
198547
198449
198352
198251
198151
198058

Providence County compared with nearby places

Kent County: 31 indexProvidence County: 39 indexWashington County: 37 index
  • Under 35
  • 35 to 38
  • 38 and over
  • No data
Median Air Quality Index (US EPA), 2025, index. Providence County is outlined. Same source and period for every area shown. Source: U.S. Environmental Protection Agency. Boundaries: U.S. Census Bureau cartographic boundary files.

Definition

Median of the daily Air Quality Index (AQI) values of a US county over the days of the year with an AQI, from the EPA AirData annual summaries.

More on how it is measured
  • The daily county AQI is the highest AQI among the monitors and pollutants reported that day (ozone, PM2.5, PM10, carbon monoxide and nitrogen dioxide).
  • Lower is cleaner: 0 to 50 is good, 51 to 100 moderate and above 100 unhealthy for sensitive groups.

United States counties with air quality monitors only, about 1,000 of some 3,100 in recent years; a county without monitors has no value. The number of days with an AQI differs between counties because some monitors run only in the ozone season.

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How to cite

U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Environmental Protection Agency. (2026). EPA AirData annual AQI by county: median daily AQI (Median Air Quality Index (US EPA), Providence County, 1980 to 2025) [Data set]. Retrieved October 12, 2026, from https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual

MLA 9

EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Providence County, 1980 to 2025. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: median daily AQI. Median Air Quality Index (US EPA), Providence County, 1980 to 2025. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Providence County, 1980 to 2025 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_2025,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Providence County, 1980 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download\_files.html\#Annual. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Environmental Protection Agency
TI  - EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Providence County, 1980 to 2025
PY  - 2026
DA  - 2026/07/13
PB  - U.S. Environmental Protection Agency
DB  - Invokely
UR  - https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual
L2  - https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/providence-county-rhode-island.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  -
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Questions

What is the median Air Quality Index (US EPA) in Providence County?

Median Air Quality Index (US EPA) in Providence County was 39 in 2025, according to the U.S. Environmental Protection Agency. That is up 1 from 2024.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: median daily AQI. Retrieved by Invokely on 2026-10-12.

What was the highest median Air Quality Index (US EPA) in Providence County?

58 in 1980, the highest value since 1980 in this series.

Related statistics for Providence County

All statistics for Providence County | Providence County in figures