Air Quality in Nez Perce, Idaho

20
Current AQI: Good
Primary pollutant: PM2.5 · Updated 03/29/26
29
Median AQI (2024)
182
Max AQI (2024)
→ stable
10-Year Trend
PM2.5
Primary Pollutant
276
Good Days (2024)
9
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2024 29 182276828 0366
2023 36 1992561063 0365
2022 34 1952521076 0365
2021 34 2042519618 0365
2020 28 4752797611 0366
2019 32 90272880 0360
2018 25 188273875 0365
2017 36 2862529815 0365
2016 31 141287772 0366
2015 25 3542164114 0271

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Dec 31, 2024 27 GoodPM2.5
Dec 30, 2024 15 GoodPM2.5
Dec 29, 2024 8 GoodPM2.5
Dec 28, 2024 61 ModeratePM2.5
Dec 27, 2024 43 GoodPM2.5
Dec 26, 2024 9 GoodPM2.5
Dec 25, 2024 52 ModeratePM2.5
Dec 24, 2024 22 GoodPM2.5
Dec 23, 2024 8 GoodPM2.5
Dec 22, 2024 47 GoodPM2.5
Dec 21, 2024 18 GoodPM2.5
Dec 20, 2024 19 GoodPM2.5
Dec 19, 2024 42 GoodPM2.5
Dec 18, 2024 8 GoodPM2.5
Dec 17, 2024 50 GoodPM2.5
Dec 16, 2024 14 GoodPM2.5
Dec 15, 2024 15 GoodPM2.5
Dec 14, 2024 30 GoodPM2.5
Dec 13, 2024 34 GoodPM2.5
Dec 12, 2024 40 GoodPM2.5
Dec 11, 2024 55 ModeratePM2.5
Dec 10, 2024 58 ModeratePM2.5
Dec 9, 2024 52 ModeratePM2.5
Dec 8, 2024 18 GoodPM2.5
Dec 7, 2024 45 GoodPM2.5
Dec 6, 2024 27 GoodPM2.5
Dec 5, 2024 18 GoodPM2.5
Dec 4, 2024 29 GoodPM2.5
Dec 3, 2024 25 GoodPM2.5
Dec 2, 2024 32 GoodPM2.5
Dec 1, 2024 57 ModeratePM2.5
Nov 30, 2024 56 ModeratePM2.5
Nov 29, 2024 28 GoodPM2.5
Nov 28, 2024 29 GoodPM2.5
Nov 27, 2024 57 ModeratePM2.5
Nov 26, 2024 29 GoodPM2.5
Nov 25, 2024 14 GoodPM2.5
Nov 24, 2024 13 GoodPM2.5
Nov 23, 2024 19 GoodPM2.5
Nov 22, 2024 44 GoodPM2.5
Nov 21, 2024 26 GoodPM2.5
Nov 20, 2024 26 GoodPM2.5
Nov 19, 2024 21 GoodPM2.5
Nov 18, 2024 15 GoodPM2.5
Nov 17, 2024 14 GoodPM2.5
Nov 16, 2024 25 GoodPM2.5
Nov 15, 2024 55 ModeratePM2.5
Nov 14, 2024 39 GoodPM2.5
Nov 13, 2024 27 GoodPM2.5
Nov 12, 2024 42 GoodPM2.5
Nov 11, 2024 38 GoodPM2.5
Nov 10, 2024 88 ModeratePM2.5
Nov 9, 2024 84 ModeratePM2.5
Nov 8, 2024 102 Unhealthy for Sensitive GroupsPM2.5
Nov 7, 2024 77 ModeratePM2.5
Nov 6, 2024 58 ModeratePM2.5
Nov 5, 2024 14 GoodPM2.5
Nov 4, 2024 21 GoodPM2.5
Nov 3, 2024 44 GoodPM2.5
Nov 2, 2024 22 GoodPM2.5
Nov 1, 2024 33 GoodPM2.5
Oct 31, 2024 42 GoodPM2.5
Oct 30, 2024 51 ModeratePM2.5
Oct 29, 2024 34 GoodPM2.5
Oct 28, 2024 33 GoodPM2.5
Oct 27, 2024 26 GoodPM2.5
Oct 26, 2024 36 GoodPM2.5
Oct 25, 2024 28 GoodPM2.5
Oct 24, 2024 24 GoodPM2.5
Oct 23, 2024 48 GoodPM2.5
Oct 22, 2024 27 GoodPM2.5
Oct 21, 2024 23 GoodPM2.5
Oct 20, 2024 16 GoodPM2.5
Oct 19, 2024 13 GoodPM2.5
Oct 18, 2024 13 GoodPM2.5
Oct 17, 2024 17 GoodPM2.5
Oct 16, 2024 24 GoodPM2.5
Oct 15, 2024 56 ModeratePM2.5
Oct 14, 2024 57 ModeratePM2.5
Oct 13, 2024 53 ModeratePM2.5
Oct 12, 2024 56 ModeratePM2.5
Oct 11, 2024 40 GoodPM2.5
Oct 10, 2024 21 GoodPM2.5
Oct 9, 2024 49 GoodPM2.5
Oct 8, 2024 57 ModeratePM2.5
Oct 7, 2024 54 ModeratePM2.5
Oct 6, 2024 27 GoodPM2.5
Oct 5, 2024 23 GoodPM2.5
Oct 4, 2024 38 GoodPM2.5
Oct 3, 2024 33 GoodPM2.5

Monitoring Stations

ISP BLDG/2700 N/S HWY 12-95
Lewiston
Est. 1992-08-10
46.4296, -116.9924
STATE OFFICE BLDG/1118 F ST
Lewiston
Est. 1981-01-01
46.4178, -117.0186
1409 8TH STREET
Lewiston
Est. 1988-09-30
46.4041, -117.0213
WEST SIDE REUBENS-GIFFORD RD, REUBENS
Not in a city
Est. 2002-06-02
46.3350, -116.5359
17500 NEZ PERCE ROAD
Not in a city
Est. 2006-05-01
46.4381, -116.9052
ERWM
Not in a City
Est. 2011-06-09
46.3999, -116.8013
Lapwai
Not in a City
Est. 2003-04-24
46.3972, -116.8062
Lapwai High School
Lapwai
Est. 2009-09-08
46.4012, -116.8073
Lewiston
Lewiston
Est. 2001-03-16
46.4084, -116.9925

Frequently Asked Questions

What is the air quality in Nez Perce, Idaho?

Based on EPA data from 2024, Nez Perce has a median Air Quality Index (AQI) of 29, which is classified as "Good." The primary pollutant is PM2.5. Over the past 10 years, air quality has been stable.

Is Nez Perce a good place to live for air quality?

Nez Perce has a 10-year average median AQI of 31. In 2024, there were 276 days with "Good" air quality and 8 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Nez Perce the most?

The primary pollutant driving the AQI in Nez Perce is PM2.5. This is monitored by 9 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 Nez Perce?

There are 9 active EPA monitoring stations in Nez Perce, Idaho. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.