Median AQI
44
Good
New York · County air quality · 2025
Kings County, New York
Median AQI 44 (Good). 59.3% of monitored days rated Good, direct from EPA Air Quality System stations.
- 44
- Median AQI
- 59.3%
- Good-air days
- 0
- Unhealthy days
- 13%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Kings County's air is good on balance, among the more polluted 10% of US counties, a median AQI of 44 with 59.3% of 273 monitored days in the Good band, driven mainly by PM2.5.
- 44
- median AQI · Good
- 59.3%
- days rated Good
- PM2.5
- main pollutant
- 13%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 99.
Data updated July 2026
- Good · 162 d · 59.3%
- Moderate · 111 d · 40.7%
How did Kings County's air break down in 2025?
Across 273 monitored days, 162 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 99 (Moderate).
EPA AQS →Air quality data from EPA Air Quality System (2025). 273 days monitored. Median AQI: 44 (Good).
Insights: Kings County, New York. EPA monitors recorded a median Air Quality Index of 44 across 273 measured days in 2025, earning a Good classification and a Moderate health grade. Of those days, 162 (59%) fell in the Good band (AQI 0–50), 111 (41%) registered Moderate readings, and 0 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 64, while the worst single-day peak hit 99 (Moderate). Residents averaged about 17.8 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as PM2.5 (273 days). Across the 2020–2025 trend window, good days shifted by -138 and the median AQI moved +14 points, placing the multi-year trajectory at worsening. The worst single reading over the 2020–2025 window was AQI 99, moderate but never Unhealthy. Nearby counties show comparable readings: Albany (67.4% good, AQI 39); Bronx (56.6% good, AQI 47); Chautauqua (88.6% good, AQI 39); Dutchess (92.7% good, AQI 37); Erie (61.3% good, AQI 44); Essex (79.8% good, AQI 42).
Air Quality Summary
Good Days
59.3%
162 of 273 monitored days
-15.7pp vs 75% target
Max AQI Recorded
99
Moderate
Health Grade
Moderate
90th-pct AQI 64
Kings County, Good days share 59.3%
National avg
Share of monitored days at AQI 0-50 (Good band).
Kings County, Unhealthy-or-worse share 0.0%
National avg
Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).
AQI Day Breakdown (2025)
Distribution of 273 monitored days across EPA AQI categories.
Good
162
59%
Moderate
111
41%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Kings County.
- PM2.5 · 273 days · 100.0%
Health Impact Assessment
Moderate
Kings County's air quality is rated Moderate based on 59.3% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 59.3% of monitored days in 2025, with a median AQI of 44. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is PM2.5, driving AQI on 273 of 273 monitored days.
5-Year Air Quality Trend
Air quality is worsening in Kings County. Best year: 2020 (300 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 300 | 65 | 0 | 0 | 30 | 80 |
| 2021 | 233 | 131 | 0 | 1 | 42 | 154 |
| 2022 | 240 | 124 | 0 | 0 | 43 | 85 |
| 2023 | 207 | 152 | 1 | 3 | 46 | 249 |
| 2024 | 253 | 113 | 0 | 0 | 39 | 98 |
| 2025 | 162 | 111 | 0 | 0 | 44 | 99 |
How does Kings County compare?
How Kings County compares
Good-day share worse than US avg
Kings County 59.3%
Albany County, New York 67.4%
US average 76.5%
Median AQI worse than US avg
Kings County 44
Albany County, New York 39
US average 38
Unhealthy days / yr about average
Kings County 0
Albany County, New York 0
US average 0
Other Counties in New York
Air quality comparison for nearby counties in New York.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Kings County.
Baltimore County, Maryland
AQI 44 · 70.4% good
Baltimore (City) County, Maryland
AQI 44 · 68.7% good
Bartholomew County, Indiana
AQI 44 · 69.2% good
Berks County, Pennsylvania
AQI 44 · 65.6% good
Bolivar County, Mississippi
AQI 44 · 70.3% good
Brewster County, Texas
AQI 44 · 69.0% good
What Kings County's air means for you
The air here stays in the breathable range year-round, with PM2.5 the main thing to watch.
- Sensitive groups (asthma, heart conditions, children, older adults) should check the AQI on high-PM2.5 days, the guide explains what a median of 44 means for exposure. Health guidance
- See how Kings County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Kings County with its New York neighbours before drawing a conclusion about the region. All of New York
Based on 273 EPA-monitored days in 2025; figures reflect only days the monitors reported. Source: EPA Air Quality System annual summaries.
More Air Quality Data
Air Quality Guides
Frequently Asked Questions
What is the air quality in Kings County, New York? ▼
Kings County has a median Air Quality Index (AQI) of 44, rated "Good." 59.3% of monitored days (162 out of 273) had good air quality in 2025.
What is the main pollutant in Kings County? ▼
The primary pollutant in Kings County is Fine Particles (PM2.5), which was the main AQI driver on 273 days (100% of monitored days). Penetrates deep into lungs and bloodstream. Linked to heart disease and premature death.
How many unhealthy air days does Kings County have? ▼
In 2025, Kings County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 99.
Is the air quality in Kings County getting better or worse? ▼
Air quality in Kings County is worsening based on 5-year trends (2020-2025). Best year: 2020 with 300 good days. Worst year: 2025 with 162 good days.
What does AQI 44 mean for health? ▼
Kings County's median AQI of 44 falls in the "Good" category. See the <a href="/guides/understanding-aqi" class="underline">AQI category guide</a> for what each range means for health.
How does Kings County compare to other counties in New York? ▼
Kings County has 59.3% good air days. Nearby counties in New York: Albany (67.4% good), Bronx (56.6% good), Chautauqua (88.6% good), Dutchess (92.7% good), Erie (61.3% good), Essex (79.8% good).
What is the 90th percentile AQI in Kings County? ▼
The 90th percentile AQI for Kings County is 64, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 99 (Moderate).
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.
Informational only, not professional advice. Data from EPA AQS. See our disclaimer.
Every figure on PlainAir is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.