EnviroNearby

Jones County, North Carolina air quality history

Daily Air Quality Index summaries from EPA monitors in Jones, North Carolina, 1980–1983.

86%
Good days in 1983
32
Median daily AQI, 1983
4
Days above 100 in 1983
322
Days with an AQI in 1983 (of 365)

In 1983, EPA reported a daily Air Quality Index (AQI) for Jones, North Carolina on 322 days. 278 of those days (86%) were in the Good range, and the median daily AQI was 32. That median is lower than the typical monitored county in North Carolina (median 49 across 19 counties), and lower than the typical monitored U.S. county (40). The main pollutant was ozone on 322 days.

The most recent year with data for this county is 1983; EPA's files for 1984–2025 contain no row for it, which usually means its monitors stopped reporting.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1980: Good 243 of 318 days1980: Moderate 51 of 318 days1980: Unhealthy for Sensitive Groups 21 of 318 days1980: Unhealthy 1 of 318 days1980: Very Unhealthy 2 of 318 days19801981: Good 260 of 306 days1981: Moderate 42 of 306 days1981: Unhealthy for Sensitive Groups 4 of 306 days19811982: Good 269 of 294 days1982: Moderate 19 of 294 days1982: Unhealthy for Sensitive Groups 6 of 294 days19821983: Good 278 of 322 days1983: Moderate 40 of 322 days1983: Unhealthy for Sensitive Groups 4 of 322 days1983
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001980: 90th percentile AQI 901981: 90th percentile AQI 611982: 90th percentile AQI 491983: 90th percentile AQI 541980: Median AQI 321981: Median AQI 351982: Median AQI 321983: Median AQI 321980198119821983
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 1983

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Ozone322100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
19833222784040003254119Ozone
19822942691960003249150Ozone
19813062604240003561136Ozone
198031824351211203290226Ozone

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

All monitored counties in North Carolina

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–1983 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem