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

Median Air Quality Index (US EPA) in Lowndes County

Median Air Quality Index (US EPA) in Lowndes County was 48 in 2009, according to the U.S. Environmental Protection Agency. That is down 6 from 2008.

2009, index48
Change on 2008-6
Series high641999
Series low431987

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 Lowndes County, 1987 to 2009

40455055606519871999200120032005200720091987: 43 index1988: 48 index1999: 64 index2000: 60 index2001: 58 index2002: 55 index2003: 57 index2004: 55 index2005: 56 index2006: 55 index2007: 56 index2008: 54 index2009: 48 index405060701987200220091987: 43 index1988: 48 index1999: 64 index2000: 60 index2001: 58 index2002: 55 index2003: 57 index2004: 55 index2005: 56 index2006: 55 index2007: 56 index2008: 54 index2009: 48 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 13 values
Periodindex
200948
200854
200756
200655
200556
200455
200357
200255
200158
200060
199964
198848
198743

Lowndes County compared with nearby places

Adams County: 41 indexBolivar County: 51 indexDeSoto County: 52 indexForrest County: 54 indexGrenada County: 49 indexHancock County: 41 indexHarrison County: 53 indexHinds County: 53 indexJackson County: 39 indexJones County: 55 indexLauderdale County: 53 indexLee County: 52 indexLowndes County: 48 indexYalobusha County: 33 index
  • Under 41
  • 41 to 49
  • 49 to 52
  • 52 to 53
  • 53 and over
  • No data
Median Air Quality Index (US EPA), 2009, index. Lowndes 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.

Rankings

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), Lowndes County, 1987 to 2009) [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), Lowndes County, 1987 to 2009. 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/lowndes-county-mississippi. 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), Lowndes County, 1987 to 2009. 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/lowndes-county-mississippi.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Lowndes County, 1987 to 2009 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/lowndes-county-mississippi (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_2009,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Lowndes County, 1987 to 2009}},
  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/lowndes-county-mississippi. 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), Lowndes County, 1987 to 2009
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/lowndes-county-mississippi
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/lowndes-county-mississippi.
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 Lowndes County?

Median Air Quality Index (US EPA) in Lowndes County was 48 in 2009, according to the U.S. Environmental Protection Agency. That is down 6 from 2008.

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 Lowndes County?

64 in 1999, the highest value since 1987 in this series.

Related statistics for Lowndes County

All statistics for Lowndes County | Lowndes County in figures