EnviroNearby

Cabell County, West Virginia air quality history

Daily Air Quality Index summaries from EPA monitors in Cabell, West Virginia, 1982–2025.

70%
Good days in 2025
42
Median daily AQI, 2025
0
Days above 100 in 2025
364
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Cabell, West Virginia on 364 days. 253 of those days (70%) were in the Good range, and the median daily AQI was 42. That median is higher than the typical monitored county in West Virginia (median 39 across 12 counties), and about the same as the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 234 days. Across the years with fuller monitoring, the share of Good days held roughly steady: an average of 71% in 1982–1984 versus 72% in 2023–2025.

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%1982: Good 252 of 326 days1982: Moderate 44 of 326 days1982: Unhealthy for Sensitive Groups 24 of 326 days1982: Unhealthy 6 of 326 days19821983: Good 242 of 365 days1983: Moderate 75 of 365 days1983: Unhealthy for Sensitive Groups 21 of 365 days1983: Unhealthy 23 of 365 days1983: Very Unhealthy 4 of 365 days1984: Good 252 of 362 days1984: Moderate 74 of 362 days1984: Unhealthy for Sensitive Groups 27 of 362 days1984: Unhealthy 8 of 362 days1984: Very Unhealthy 1 of 362 days1985: Good 253 of 357 days1985: Moderate 70 of 357 days1985: Unhealthy for Sensitive Groups 21 of 357 days1985: Unhealthy 13 of 357 days1986: Good 263 of 365 days1986: Moderate 73 of 365 days1986: Unhealthy for Sensitive Groups 26 of 365 days1986: Unhealthy 2 of 365 days1986: Very Unhealthy 1 of 365 days1987: Good 235 of 349 days1987: Moderate 70 of 349 days1987: Unhealthy for Sensitive Groups 30 of 349 days1987: Unhealthy 13 of 349 days1987: Very Unhealthy 1 of 349 days19871988: Good 254 of 366 days1988: Moderate 62 of 366 days1988: Unhealthy for Sensitive Groups 25 of 366 days1988: Unhealthy 19 of 366 days1988: Very Unhealthy 6 of 366 days1989: Good 296 of 359 days1989: Moderate 49 of 359 days1989: Unhealthy for Sensitive Groups 11 of 359 days1989: Unhealthy 2 of 359 days1989: Very Unhealthy 1 of 359 days1990: Good 259 of 343 days1990: Moderate 54 of 343 days1990: Unhealthy for Sensitive Groups 23 of 343 days1990: Unhealthy 7 of 343 days1991: Good 290 of 354 days1991: Moderate 48 of 354 days1991: Unhealthy for Sensitive Groups 11 of 354 days1991: Unhealthy 5 of 354 days1992: Good 274 of 339 days1992: Moderate 57 of 339 days1992: Unhealthy for Sensitive Groups 8 of 339 days19921993: Good 209 of 307 days1993: Moderate 63 of 307 days1993: Unhealthy for Sensitive Groups 24 of 307 days1993: Unhealthy 11 of 307 days1994: Good 138 of 244 days1994: Moderate 68 of 244 days1994: Unhealthy for Sensitive Groups 26 of 244 days1994: Unhealthy 10 of 244 days1994: Very Unhealthy 2 of 244 days1995: Good 119 of 211 days1995: Moderate 52 of 211 days1995: Unhealthy for Sensitive Groups 32 of 211 days1995: Unhealthy 7 of 211 days1995: Very Unhealthy 1 of 211 days1996: Good 132 of 206 days1996: Moderate 53 of 206 days1996: Unhealthy for Sensitive Groups 16 of 206 days1996: Unhealthy 5 of 206 days1997: Good 126 of 205 days1997: Moderate 59 of 205 days1997: Unhealthy for Sensitive Groups 16 of 205 days1997: Unhealthy 2 of 205 days1997: Very Unhealthy 2 of 205 days19971998: Good 114 of 213 days1998: Moderate 60 of 213 days1998: Unhealthy for Sensitive Groups 25 of 213 days1998: Unhealthy 12 of 213 days1998: Very Unhealthy 2 of 213 days1999: Good 83 of 261 days1999: Moderate 126 of 261 days1999: Unhealthy for Sensitive Groups 38 of 261 days1999: Unhealthy 14 of 261 days2000: Good 110 of 262 days2000: Moderate 131 of 262 days2000: Unhealthy for Sensitive Groups 21 of 262 days2001: Good 106 of 255 days2001: Moderate 119 of 255 days2001: Unhealthy for Sensitive Groups 25 of 255 days2001: Unhealthy 5 of 255 days2002: Good 108 of 264 days2002: Moderate 112 of 264 days2002: Unhealthy for Sensitive Groups 25 of 264 days2002: Unhealthy 18 of 264 days2002: Very Unhealthy 1 of 264 days20022003: Good 119 of 261 days2003: Moderate 128 of 261 days2003: Unhealthy for Sensitive Groups 11 of 261 days2003: Unhealthy 3 of 261 days2004: Good 132 of 256 days2004: Moderate 123 of 256 days2004: Unhealthy for Sensitive Groups 1 of 256 days2005: Good 103 of 259 days2005: Moderate 140 of 259 days2005: Unhealthy for Sensitive Groups 16 of 259 days2006: Good 99 of 262 days2006: Moderate 139 of 262 days2006: Unhealthy for Sensitive Groups 23 of 262 days2006: Unhealthy 1 of 262 days2007: Good 73 of 263 days2007: Moderate 140 of 263 days2007: Unhealthy for Sensitive Groups 42 of 263 days2007: Unhealthy 8 of 263 days20072008: Good 136 of 258 days2008: Moderate 119 of 258 days2008: Unhealthy for Sensitive Groups 3 of 258 days2009: Good 172 of 261 days2009: Moderate 89 of 261 days2010: Good 139 of 264 days2010: Moderate 122 of 264 days2010: Unhealthy for Sensitive Groups 3 of 264 days2011: Good 151 of 261 days2011: Moderate 105 of 261 days2011: Unhealthy for Sensitive Groups 5 of 261 days2012: Good 140 of 245 days2012: Moderate 97 of 245 days2012: Unhealthy for Sensitive Groups 7 of 245 days2012: Unhealthy 1 of 245 days20122013: Good 188 of 255 days2013: Moderate 67 of 255 days2014: Good 196 of 264 days2014: Moderate 67 of 264 days2014: Unhealthy for Sensitive Groups 1 of 264 days2015: Good 178 of 259 days2015: Moderate 80 of 259 days2015: Unhealthy for Sensitive Groups 1 of 259 days2016: Good 202 of 262 days2016: Moderate 59 of 262 days2016: Unhealthy for Sensitive Groups 1 of 262 days2017: Good 233 of 283 days2017: Moderate 48 of 283 days2017: Unhealthy for Sensitive Groups 2 of 283 days20172018: Good 229 of 282 days2018: Moderate 53 of 282 days2019: Good 233 of 275 days2019: Moderate 42 of 275 days2020: Good 252 of 284 days2020: Moderate 32 of 284 days2021: Good 232 of 283 days2021: Moderate 51 of 283 days2022: Good 247 of 282 days2022: Moderate 35 of 282 days20222023: Good 210 of 273 days2023: Moderate 62 of 273 days2023: Unhealthy for Sensitive Groups 1 of 273 days2024: Good 253 of 366 days2024: Moderate 113 of 366 days2025: Good 253 of 364 days2025: Moderate 111 of 364 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 year0501001501982: 90th percentile AQI 971983: 90th percentile AQI 1291984: 90th percentile AQI 1001985: 90th percentile AQI 1001986: 90th percentile AQI 931987: 90th percentile AQI 1191988: 90th percentile AQI 1221989: 90th percentile AQI 671990: 90th percentile AQI 971991: 90th percentile AQI 711992: 90th percentile AQI 651993: 90th percentile AQI 1051994: 90th percentile AQI 1151995: 90th percentile AQI 1261996: 90th percentile AQI 1011997: 90th percentile AQI 1001998: 90th percentile AQI 1331999: 90th percentile AQI 1332000: 90th percentile AQI 932001: 90th percentile AQI 1052002: 90th percentile AQI 1292003: 90th percentile AQI 832004: 90th percentile AQI 772005: 90th percentile AQI 932006: 90th percentile AQI 932007: 90th percentile AQI 1192008: 90th percentile AQI 742009: 90th percentile AQI 662010: 90th percentile AQI 742011: 90th percentile AQI 712012: 90th percentile AQI 802013: 90th percentile AQI 592014: 90th percentile AQI 612015: 90th percentile AQI 672016: 90th percentile AQI 592017: 90th percentile AQI 562018: 90th percentile AQI 582019: 90th percentile AQI 532020: 90th percentile AQI 512021: 90th percentile AQI 552022: 90th percentile AQI 542023: 90th percentile AQI 612024: 90th percentile AQI 602025: 90th percentile AQI 581982: Median AQI 381983: Median AQI 431984: Median AQI 391985: Median AQI 411986: Median AQI 391987: Median AQI 421988: Median AQI 411989: Median AQI 351990: Median AQI 381991: Median AQI 371992: Median AQI 391993: Median AQI 391994: Median AQI 451995: Median AQI 481996: Median AQI 451997: Median AQI 461998: Median AQI 501999: Median AQI 622000: Median AQI 552001: Median AQI 572002: Median AQI 572003: Median AQI 532004: Median AQI 502005: Median AQI 552006: Median AQI 562007: Median AQI 612008: Median AQI 492009: Median AQI 432010: Median AQI 492011: Median AQI 472012: Median AQI 482013: Median AQI 422014: Median AQI 422015: Median AQI 432016: Median AQI 402017: Median AQI 412018: Median AQI 392019: Median AQI 402020: Median AQI 372021: Median AQI 382022: Median AQI 392023: Median AQI 442024: Median AQI 432025: Median AQI 421982198719921997200220072012201720222025
  • 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)23464%
Ozone13036%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
20253642531110000425892PM2.5
20243662531130000436087PM2.5
20232732106210004461144Ozone
2022282247350000395493Ozone
2021283232510000385587Ozone
20202842523200003751100Ozone
2019275233420000405371Ozone
20182822295300003958100Ozone
20172832334820004156101Ozone
20162622025910004059129Ozone
20152591788010004367101Ozone
20142641966710004261101Ozone
2013255188670000425977Ozone
20122451409771004880159Ozone
201126115110550004771133Ozone
201026413912230004974119Ozone
2009261172890000436695Ozone
200825813611930004974119Ozone
2007263731404280061119172Ozone
200626299139231005693151Ozone
2005259103140160005593150Ozone
200425613212310005077136Ozone
2003261119128113005383200Ozone
200226410811225181057129203Ozone
20012551061192550057105166Ozone
2000262110131210005593150Ozone
19992618312638140062133187Ozone
19982131146025122050133210Ozone
1997205126591622046100204Ozone
1996206132531650045101190Ozone
1995211119523271048126207Ozone
19942441386826102045115205Ozone
19933072096324110039105190Ozone
19923392745780003965140Ozone
199135429048115003771192Ozone
199034325954237003897174Ozone
198935929649112103567218Ozone
19883662546225196041122233Ozone
19873492357030131042119214Ozone
198636526373262103993203Ozone
19853572537021130041100197Ozone
1984362252742781039100208Ozone
19833652427521234043129217Ozone
198232625244246003897200Ozone

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 West Virginia with a similar median AQI in 2025

All monitored counties in West Virginia

Source: U.S. EPA AirData, “Annual AQI by County” files for 1982–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem