Air Quality in Kauai, Hawaii

13
Median AQI (2022)
38
Max AQI (2022)
→ stable
10-Year Trend
PM2.5
Primary Pollutant
90
Good Days (2022)
2
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2022 13 389000 076
2021 17 4736400 0329
2020 15 5236140 0296
2019 16 7036120 0259
2018 18 5635050 0208
2017 15 5935360 0290
2016 17 5935260 0312
2015 17 59348140 0249

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Mar 31, 2022 23 GoodPM2.5
Mar 30, 2022 21 GoodPM2.5
Mar 29, 2022 16 GoodPM2.5
Mar 28, 2022 9 GoodPM2.5
Mar 27, 2022 26 GoodPM2.5
Mar 26, 2022 25 GoodPM2.5
Mar 25, 2022 27 GoodPM2.5
Mar 24, 2022 23 GoodPM2.5
Mar 23, 2022 16 GoodPM2.5
Mar 22, 2022 15 GoodPM2.5
Mar 21, 2022 6 GoodPM2.5
Mar 20, 2022 15 GoodPM2.5
Mar 19, 2022 18 GoodPM2.5
Mar 18, 2022 23 GoodPM2.5
Mar 17, 2022 17 GoodPM2.5
Mar 16, 2022 25 GoodPM2.5
Mar 15, 2022 17 GoodPM2.5
Mar 14, 2022 22 GoodPM2.5
Mar 13, 2022 17 GoodPM2.5
Mar 12, 2022 17 GoodPM2.5
Mar 11, 2022 28 GoodPM2.5
Mar 10, 2022 26 GoodPM2.5
Mar 9, 2022 6 GoodPM2.5
Mar 8, 2022 21 GoodPM2.5
Mar 7, 2022 18 GoodPM2.5
Mar 6, 2022 13 GoodPM2.5
Mar 5, 2022 6 GoodPM2.5
Mar 4, 2022 8 GoodPM2.5
Mar 3, 2022 7 GoodPM2.5
Mar 2, 2022 9 GoodPM2.5
Mar 1, 2022 7 GoodPM2.5
Feb 28, 2022 11 GoodPM2.5
Feb 27, 2022 8 GoodPM2.5
Feb 26, 2022 12 GoodPM2.5
Feb 25, 2022 15 GoodPM2.5
Feb 24, 2022 22 GoodPM2.5
Feb 23, 2022 17 GoodPM2.5
Feb 22, 2022 16 GoodPM2.5
Feb 21, 2022 26 GoodNO2
Feb 20, 2022 9 GoodPM2.5
Feb 19, 2022 7 GoodPM2.5
Feb 18, 2022 12 GoodPM2.5
Feb 17, 2022 11 GoodPM2.5
Feb 16, 2022 27 GoodNO2
Feb 15, 2022 7 GoodPM2.5
Feb 14, 2022 8 GoodPM2.5
Feb 13, 2022 8 GoodPM2.5
Feb 12, 2022 2 GoodNO2
Feb 11, 2022 6 GoodPM2.5
Feb 10, 2022 3 GoodNO2
Feb 9, 2022 6 GoodPM2.5
Feb 8, 2022 14 GoodPM2.5
Feb 7, 2022 12 GoodPM2.5
Feb 6, 2022 12 GoodPM2.5
Feb 5, 2022 11 GoodPM2.5
Feb 4, 2022 13 GoodPM2.5
Feb 3, 2022 3 GoodNO2
Feb 2, 2022 6 GoodPM2.5
Feb 1, 2022 4 GoodNO2
Jan 31, 2022 9 GoodPM2.5
Jan 30, 2022 2 GoodNO2
Jan 29, 2022 7 GoodPM2.5
Jan 28, 2022 7 GoodPM2.5
Jan 27, 2022 11 GoodPM2.5
Jan 26, 2022 4 GoodPM2.5
Jan 25, 2022 10 GoodNO2
Jan 24, 2022 34 GoodNO2
Jan 23, 2022 12 GoodPM2.5
Jan 22, 2022 22 GoodPM2.5
Jan 21, 2022 38 GoodPM2.5
Jan 20, 2022 13 GoodPM2.5
Jan 19, 2022 15 GoodPM2.5
Jan 18, 2022 18 GoodPM2.5
Jan 17, 2022 3 GoodNO2
Jan 16, 2022 2 GoodNO2
Jan 15, 2022 19 GoodPM2.5
Jan 14, 2022 23 GoodPM2.5
Jan 13, 2022 22 GoodPM2.5
Jan 12, 2022 21 GoodPM2.5
Jan 11, 2022 17 GoodPM2.5
Jan 10, 2022 12 GoodPM2.5
Jan 9, 2022 16 GoodPM2.5
Jan 8, 2022 21 GoodPM2.5
Jan 7, 2022 5 GoodPM2.5
Jan 6, 2022 2 GoodNO2
Jan 5, 2022 4 GoodPM2.5
Jan 4, 2022 2 GoodNO2
Jan 3, 2022 3 GoodNO2
Jan 2, 2022 9 GoodPM2.5
Jan 1, 2022 29 GoodPM2.5

Monitoring Stations

Lihue
Lihue
Est. 1972-01-01
21.9788, -159.3669
Niumalu
Not in a City
Est. 2011-04-01
21.9496, -159.3662

Frequently Asked Questions

What is the air quality in Kauai, Hawaii?

Based on EPA data from 2022, Kauai has a median Air Quality Index (AQI) of 13, which is classified as "Good." The primary pollutant is PM2.5. Over the past 10 years, air quality has been stable.

Is Kauai a good place to live for air quality?

Kauai has a 10-year average median AQI of 16. In 2022, there were 90 days with "Good" air quality and 0 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Kauai the most?

The primary pollutant driving the AQI in Kauai is PM2.5. This is monitored by 2 active EPA stations in the county. Other pollutants tracked include ozone, PM10, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

How many air quality monitoring stations are in Kauai?

There are 2 active EPA monitoring stations in Kauai, Hawaii. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.