EnviroNearby

Hyde County, North Carolina air quality history

Daily Air Quality Index summaries from EPA monitors in Hyde, North Carolina, 2000–2025.

97%
Good days in 2025
24
Median daily AQI, 2025
0
Days above 100 in 2025
97
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Hyde, North Carolina on 97 days. 94 of those days (97%) were in the Good range, and the median daily AQI was 24. That median is lower than the typical monitored county in North Carolina (median 39 across 33 counties), and lower than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 97 days.

EPA did not report an AQI for every day of 2025 here (97 of 365 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

Years with fewer than 120 monitored days (2020, 2021, 2022, 2023, 2024, 2025…) are shown in the table but left out of comparisons and trend statements.

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%2000: Good 31 of 53 days2000: Moderate 22 of 53 days20002001: Good 72 of 115 days2001: Moderate 43 of 115 days2002: Good 82 of 115 days2002: Moderate 33 of 115 days20022003: Good 58 of 73 days2003: Moderate 15 of 73 days2005: Good 52 of 89 days2005: Moderate 37 of 89 days20052006: Good 75 of 108 days2006: Moderate 33 of 108 days2007: Good 74 of 107 days2007: Moderate 33 of 107 days20072008: Good 58 of 91 days2008: Moderate 32 of 91 days2008: Unhealthy for Sensitive Groups 1 of 91 days2009: Good 97 of 116 days2009: Moderate 19 of 116 days20092010: Good 87 of 118 days2010: Moderate 31 of 118 days2011: Good 80 of 110 days2011: Moderate 29 of 110 days2011: Unhealthy for Sensitive Groups 1 of 110 days20112012: Good 94 of 108 days2012: Moderate 14 of 108 days2013: Good 95 of 108 days2013: Moderate 13 of 108 days20132014: Good 91 of 107 days2014: Moderate 16 of 107 days2015: Good 98 of 111 days2015: Moderate 13 of 111 days20152016: Good 97 of 108 days2016: Moderate 11 of 108 days2017: Good 108 of 114 days2017: Moderate 6 of 114 days20172018: Good 103 of 109 days2018: Moderate 6 of 109 days2019: Good 98 of 102 days2019: Moderate 4 of 102 days20192020: Good 108 of 114 days2020: Moderate 6 of 114 days2021: Good 102 of 107 days2021: Moderate 5 of 107 days20212022: Good 112 of 115 days2022: Moderate 3 of 115 days2023: Good 103 of 116 days2023: Moderate 13 of 116 days20232024: Good 89 of 94 days2024: Moderate 5 of 94 days2025: Good 94 of 97 days2025: Moderate 3 of 97 days2025
  • 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 year0501002000: 90th percentile AQI 622001: 90th percentile AQI 612002: 90th percentile AQI 602003: 90th percentile AQI 562005: 90th percentile AQI 682006: 90th percentile AQI 612007: 90th percentile AQI 612008: 90th percentile AQI 632009: 90th percentile AQI 542010: 90th percentile AQI 582011: 90th percentile AQI 612012: 90th percentile AQI 522013: 90th percentile AQI 522014: 90th percentile AQI 522015: 90th percentile AQI 522016: 90th percentile AQI 522017: 90th percentile AQI 462018: 90th percentile AQI 422019: 90th percentile AQI 422020: 90th percentile AQI 372021: 90th percentile AQI 432022: 90th percentile AQI 392023: 90th percentile AQI 512024: 90th percentile AQI 462025: 90th percentile AQI 442000: Median AQI 452001: Median AQI 412002: Median AQI 392003: Median AQI 352005: Median AQI 422006: Median AQI 412007: Median AQI 372008: Median AQI 432009: Median AQI 342010: Median AQI 322011: Median AQI 312012: Median AQI 292013: Median AQI 292014: Median AQI 312015: Median AQI 282016: Median AQI 262017: Median AQI 242018: Median AQI 262019: Median AQI 242020: Median AQI 212021: Median AQI 222022: Median AQI 212023: Median AQI 262024: Median AQI 242025: Median AQI 242000200220052007200920112013201520172019202120232025
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2025

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
Fine particles (PM2.5)97100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025979430000244459PM2.5
2024948950000244660PM2.5
2023116103130000265165PM2.5
202211511230000213961PM2.5
202110710250000224356PM2.5
202011410860000213758PM2.5
20191029840000244263PM2.5
201810910360000264259PM2.5
201711410860000244657PM2.5
201610897110000265258PM2.5
201511198130000285266PM2.5
201410791160000315261PM2.5
201310895130000295261PM2.5
201210894140000295269PM2.5
2011110802910003161127PM2.5
201011887310000325876PM2.5
200911697190000345473PM2.5
200891583210004363123PM2.5
200710774330000376188PM2.5
200610875330000416189PM2.5
20058952370000426899PM2.5
20037358150000355686PM2.5
200211582330000396083PM2.5
200111572430000416190PM2.5
20005331220000456272PM2.5

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.

Counties in North Carolina with a similar median AQI in 2025

All monitored counties in North Carolina

Source: U.S. EPA AirData, “Annual AQI by County” files for 2000–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem