EnviroNearby

Kings County, New York air quality history

Daily Air Quality Index summaries from EPA monitors in Kings, New York, 1980–2025.

64%
Good days in 2025
39
Median daily AQI, 2025
0
Days above 100 in 2025
365
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Kings, New York on 365 days. 233 of those days (64%) were in the Good range, and the median daily AQI was 39. That median is higher than the typical monitored county in New York (median 36 across 27 counties), and about the same as the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 365 days. Across the years with fuller monitoring, the share of Good days rose: an average of 54% in 1980–1982 versus 63% 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%1980: Good 181 of 287 days1980: Moderate 59 of 287 days1980: Unhealthy for Sensitive Groups 17 of 287 days1980: Unhealthy 16 of 287 days1980: Very Unhealthy 14 of 287 days19801981: Good 163 of 321 days1981: Moderate 115 of 321 days1981: Unhealthy for Sensitive Groups 24 of 321 days1981: Unhealthy 9 of 321 days1981: Very Unhealthy 10 of 321 days1982: Good 170 of 354 days1982: Moderate 163 of 354 days1982: Unhealthy for Sensitive Groups 20 of 354 days1982: Unhealthy 1 of 354 days1983: Good 263 of 337 days1983: Moderate 32 of 337 days1983: Unhealthy for Sensitive Groups 23 of 337 days1983: Unhealthy 14 of 337 days1983: Very Unhealthy 5 of 337 days1984: Good 136 of 366 days1984: Moderate 143 of 366 days1984: Unhealthy for Sensitive Groups 63 of 366 days1984: Unhealthy 23 of 366 days1984: Very Unhealthy 1 of 366 days1985: Good 117 of 364 days1985: Moderate 202 of 364 days1985: Unhealthy for Sensitive Groups 35 of 364 days1985: Unhealthy 10 of 364 days19851986: Good 112 of 364 days1986: Moderate 205 of 364 days1986: Unhealthy for Sensitive Groups 35 of 364 days1986: Unhealthy 9 of 364 days1986: Very Unhealthy 3 of 364 days1987: Good 122 of 364 days1987: Moderate 204 of 364 days1987: Unhealthy for Sensitive Groups 28 of 364 days1987: Unhealthy 8 of 364 days1987: Very Unhealthy 2 of 364 days1988: Good 195 of 365 days1988: Moderate 143 of 365 days1988: Unhealthy for Sensitive Groups 15 of 365 days1988: Unhealthy 9 of 365 days1988: Very Unhealthy 3 of 365 days1989: Good 167 of 363 days1989: Moderate 179 of 363 days1989: Unhealthy for Sensitive Groups 11 of 363 days1989: Unhealthy 5 of 363 days1989: Very Unhealthy 1 of 363 days1990: Good 243 of 365 days1990: Moderate 121 of 365 days1990: Unhealthy for Sensitive Groups 1 of 365 days19901991: Good 287 of 363 days1991: Moderate 74 of 363 days1991: Unhealthy for Sensitive Groups 2 of 363 days1992: Good 307 of 366 days1992: Moderate 59 of 366 days1993: Good 286 of 365 days1993: Moderate 73 of 365 days1993: Unhealthy for Sensitive Groups 6 of 365 days1994: Good 186 of 365 days1994: Moderate 159 of 365 days1994: Unhealthy for Sensitive Groups 16 of 365 days1994: Unhealthy 4 of 365 days1995: Good 207 of 365 days1995: Moderate 137 of 365 days1995: Unhealthy for Sensitive Groups 11 of 365 days1995: Unhealthy 8 of 365 days1995: Very Unhealthy 2 of 365 days19951996: Good 276 of 366 days1996: Moderate 78 of 366 days1996: Unhealthy for Sensitive Groups 10 of 366 days1996: Unhealthy 2 of 366 days1997: Good 363 of 365 days1997: Moderate 2 of 365 days1998: Good 338 of 340 days1998: Moderate 2 of 340 days1999: Good 325 of 365 days1999: Moderate 39 of 365 days1999: Unhealthy for Sensitive Groups 1 of 365 days2000: Good 265 of 365 days2000: Moderate 96 of 365 days2000: Unhealthy for Sensitive Groups 3 of 365 days2000: Unhealthy 1 of 365 days20002001: Good 256 of 361 days2001: Moderate 102 of 361 days2001: Unhealthy for Sensitive Groups 3 of 361 days2002: Good 272 of 365 days2002: Moderate 90 of 365 days2002: Unhealthy for Sensitive Groups 2 of 365 days2002: Unhealthy 1 of 365 days2003: Good 285 of 361 days2003: Moderate 72 of 361 days2003: Unhealthy for Sensitive Groups 4 of 361 days2004: Good 297 of 366 days2004: Moderate 66 of 366 days2004: Unhealthy for Sensitive Groups 3 of 366 days2005: Good 282 of 364 days2005: Moderate 79 of 364 days2005: Unhealthy for Sensitive Groups 3 of 364 days20052006: Good 300 of 365 days2006: Moderate 62 of 365 days2006: Unhealthy for Sensitive Groups 3 of 365 days2007: Good 129 of 363 days2007: Moderate 226 of 363 days2007: Unhealthy for Sensitive Groups 8 of 363 days2008: Good 120 of 366 days2008: Moderate 243 of 366 days2008: Unhealthy for Sensitive Groups 3 of 366 days2009: Good 147 of 365 days2009: Moderate 217 of 365 days2009: Unhealthy for Sensitive Groups 1 of 365 days2010: Good 190 of 364 days2010: Moderate 173 of 364 days2010: Unhealthy for Sensitive Groups 1 of 364 days20102011: Good 165 of 365 days2011: Moderate 199 of 365 days2011: Unhealthy for Sensitive Groups 1 of 365 days2012: Good 173 of 357 days2012: Moderate 184 of 357 days2013: Good 227 of 365 days2013: Moderate 137 of 365 days2013: Unhealthy for Sensitive Groups 1 of 365 days2014: Good 246 of 365 days2014: Moderate 119 of 365 days2015: Good 226 of 365 days2015: Moderate 139 of 365 days20152016: Good 262 of 366 days2016: Moderate 104 of 366 days2017: Good 253 of 344 days2017: Moderate 91 of 344 days2018: Good 271 of 365 days2018: Moderate 94 of 365 days2019: Good 280 of 365 days2019: Moderate 85 of 365 days2020: Good 300 of 365 days2020: Moderate 65 of 365 days20202021: Good 233 of 365 days2021: Moderate 131 of 365 days2021: Unhealthy 1 of 365 days2022: Good 240 of 364 days2022: Moderate 124 of 364 days2023: Good 207 of 364 days2023: Moderate 152 of 364 days2023: Unhealthy for Sensitive Groups 1 of 364 days2023: Unhealthy 3 of 364 days2023: Very Unhealthy 1 of 364 days2024: Good 253 of 366 days2024: Moderate 113 of 366 days2025: Good 233 of 365 days2025: Moderate 132 of 365 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 year0501001502001980: 90th percentile AQI 1511981: 90th percentile AQI 1051982: 90th percentile AQI 891983: 90th percentile AQI 1261984: 90th percentile AQI 1301985: 90th percentile AQI 1061986: 90th percentile AQI 1061987: 90th percentile AQI 1011988: 90th percentile AQI 891989: 90th percentile AQI 831990: 90th percentile AQI 681991: 90th percentile AQI 591992: 90th percentile AQI 551993: 90th percentile AQI 611994: 90th percentile AQI 821995: 90th percentile AQI 851996: 90th percentile AQI 691997: 90th percentile AQI 401998: 90th percentile AQI 361999: 90th percentile AQI 522000: 90th percentile AQI 702001: 90th percentile AQI 742002: 90th percentile AQI 672003: 90th percentile AQI 662004: 90th percentile AQI 642005: 90th percentile AQI 672006: 90th percentile AQI 632007: 90th percentile AQI 792008: 90th percentile AQI 732009: 90th percentile AQI 692010: 90th percentile AQI 692011: 90th percentile AQI 692012: 90th percentile AQI 662013: 90th percentile AQI 642014: 90th percentile AQI 592015: 90th percentile AQI 612016: 90th percentile AQI 572017: 90th percentile AQI 562018: 90th percentile AQI 562019: 90th percentile AQI 552020: 90th percentile AQI 552021: 90th percentile AQI 612022: 90th percentile AQI 592023: 90th percentile AQI 652024: 90th percentile AQI 622025: 90th percentile AQI 631980: Median AQI 421981: Median AQI 501982: Median AQI 511983: Median AQI 301984: Median AQI 641985: Median AQI 651986: Median AQI 641987: Median AQI 621988: Median AQI 471989: Median AQI 531990: Median AQI 391991: Median AQI 391992: Median AQI 381993: Median AQI 361994: Median AQI 501995: Median AQI 481996: Median AQI 391997: Median AQI 261998: Median AQI 241999: Median AQI 242000: Median AQI 252001: Median AQI 222002: Median AQI 192003: Median AQI 192004: Median AQI 162005: Median AQI 142006: Median AQI 142007: Median AQI 552008: Median AQI 542009: Median AQI 522010: Median AQI 492011: Median AQI 522012: Median AQI 512013: Median AQI 412014: Median AQI 402015: Median AQI 422016: Median AQI 382017: Median AQI 382018: Median AQI 342019: Median AQI 362020: Median AQI 302021: Median AQI 422022: Median AQI 432023: Median AQI 462024: Median AQI 392025: Median AQI 391980198519901995200020052010201520202025
  • 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)365100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
20253652331320000396399PM2.5
20243662531130000396298PM2.5
202336420715213104665249PM2.5
20223642401240000435985PM2.5
202136523313101004261154PM2.5
2020365300650000305580PM2.5
2019365280850000365578PM2.5
2018365271940000345682PM2.5
2017344253910000385675PM2.5
20163662621040000385783PM2.5
20153652261390000426188PM2.5
20143652461190000405988PM2.5
201336522713710004164108PM2.5
20123571731840000516685PM2.5
201136516519910005269111PM2.5
201036419017310004969106PM2.5
200936514721710005269105PM2.5
200836612024330005473109PM2.5
200736312922680005579125PM2.5
20063653006230001463113CO
20053642827930001467116CO
20043662976630001664133CO
20033612857240001966140CO
20023652729021001967173CO
200136125610230002274140CO
20003652659631002570164CO
19993653253910002452119CO
199834033820000243652CO
199736536320000264069CO
199636627678102003969166CO
1995365207137118204885207NO2
1994365186159164005082179NO2
19933652867360003661124CO
1992366307590000385585CO
19913632877420003959125CO
199036524312110003968103CO
1989363167179115105383201CO
1988365195143159304789232CO
19873641222042882062101221CO
19863641122053593064106222CO
198536411720235100065106172CO
198436613614363231064130205CO
19833372633223145030126225Ozone
1982354170163201005189164NO2
198132116311524910050105230NO2
198028718159171614042151232NO2

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 New York with a similar median AQI in 2025

All monitored counties in New York

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem