Air Quality in Lake, Illinois

39
Current AQI: Good
Primary pollutant: OZONE · Updated 03/30/26
40
Median AQI (2024)
140
Max AQI (2024)
↑ worsening
10-Year Trend
Ozone
Primary Pollutant
201
Good Days (2024)
2
Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

YearMedian AQIMax AQI Good DaysModerate DaysUnhealthy Days Ozone DaysPM2.5 Days
2024 40 140201395 2450
2023 42 1791824714 2430
2022 39 159199413 2430
2021 42 136180559 2440
2020 39 1851993111 2410
2019 40 115210332 2450
2018 35 164304408 3520
2017 35 129316357 3580
2016 34 140306328 3460
2015 35 122332273 3620

Recent Daily AQI

DateAQICategoryPrimary Pollutant
Oct 31, 2024 30 GoodOzone
Oct 30, 2024 40 GoodOzone
Oct 29, 2024 44 GoodOzone
Oct 28, 2024 38 GoodOzone
Oct 27, 2024 30 GoodOzone
Oct 26, 2024 32 GoodOzone
Oct 25, 2024 31 GoodOzone
Oct 24, 2024 35 GoodOzone
Oct 23, 2024 28 GoodOzone
Oct 22, 2024 44 GoodOzone
Oct 21, 2024 58 ModerateOzone
Oct 20, 2024 49 GoodOzone
Oct 19, 2024 43 GoodOzone
Oct 18, 2024 45 GoodOzone
Oct 17, 2024 35 GoodOzone
Oct 16, 2024 26 GoodOzone
Oct 15, 2024 25 GoodOzone
Oct 14, 2024 24 GoodOzone
Oct 13, 2024 28 GoodOzone
Oct 12, 2024 31 GoodOzone
Oct 11, 2024 50 GoodOzone
Oct 10, 2024 40 GoodOzone
Oct 9, 2024 32 GoodOzone
Oct 8, 2024 38 GoodOzone
Oct 7, 2024 35 GoodOzone
Oct 6, 2024 35 GoodOzone
Oct 5, 2024 64 ModerateOzone
Oct 4, 2024 34 GoodOzone
Oct 3, 2024 43 GoodOzone
Oct 2, 2024 40 GoodOzone
Oct 1, 2024 31 GoodOzone
Sep 30, 2024 30 GoodOzone
Sep 29, 2024 31 GoodOzone
Sep 28, 2024 31 GoodOzone
Sep 27, 2024 35 GoodOzone
Sep 26, 2024 42 GoodOzone
Sep 25, 2024 38 GoodOzone
Sep 24, 2024 23 GoodOzone
Sep 23, 2024 31 GoodOzone
Sep 22, 2024 31 GoodOzone
Sep 21, 2024 47 GoodOzone
Sep 20, 2024 77 ModerateOzone
Sep 19, 2024 97 ModerateOzone
Sep 18, 2024 90 ModerateOzone
Sep 17, 2024 64 ModerateOzone
Sep 16, 2024 74 ModerateOzone
Sep 15, 2024 50 GoodOzone
Sep 14, 2024 51 ModerateOzone
Sep 13, 2024 84 ModerateOzone
Sep 12, 2024 84 ModerateOzone
Sep 11, 2024 67 ModerateOzone
Sep 10, 2024 50 GoodOzone
Sep 9, 2024 39 GoodOzone
Sep 8, 2024 32 GoodOzone
Sep 7, 2024 33 GoodOzone
Sep 6, 2024 25 GoodOzone
Sep 5, 2024 51 ModerateOzone
Sep 4, 2024 64 ModerateOzone
Sep 3, 2024 42 GoodOzone
Sep 2, 2024 30 GoodOzone
Sep 1, 2024 31 GoodOzone
Aug 31, 2024 49 GoodOzone
Aug 30, 2024 37 GoodOzone
Aug 29, 2024 32 GoodOzone
Aug 28, 2024 42 GoodOzone
Aug 27, 2024 133 Unhealthy for Sensitive GroupsOzone
Aug 26, 2024 126 Unhealthy for Sensitive GroupsOzone
Aug 25, 2024 80 ModerateOzone
Aug 24, 2024 97 ModerateOzone
Aug 23, 2024 87 ModerateOzone
Aug 22, 2024 71 ModerateOzone
Aug 21, 2024 35 GoodOzone
Aug 20, 2024 31 GoodOzone
Aug 19, 2024 31 GoodOzone
Aug 18, 2024 35 GoodOzone
Aug 17, 2024 39 GoodOzone
Aug 16, 2024 44 GoodOzone
Aug 15, 2024 39 GoodOzone
Aug 14, 2024 48 GoodOzone
Aug 13, 2024 44 GoodOzone
Aug 12, 2024 44 GoodOzone
Aug 11, 2024 30 GoodOzone
Aug 10, 2024 27 GoodOzone
Aug 9, 2024 23 GoodOzone
Aug 8, 2024 40 GoodOzone
Aug 7, 2024 36 GoodOzone
Aug 6, 2024 31 GoodOzone
Aug 5, 2024 35 GoodOzone
Aug 4, 2024 34 GoodOzone
Aug 3, 2024 41 GoodOzone

Monitoring Stations

CAMP LOGAN TRAILER
Zion
Est. 1994-04-14
42.4660, -87.8096
NORTH FIRESTATION
Waukegan
Est. 1976-01-01
42.3867, -87.8414

Frequently Asked Questions

What is the air quality in Lake, Illinois?

Based on EPA data from 2024, Lake has a median Air Quality Index (AQI) of 40, which is classified as "Good." The primary pollutant is Ozone. Over the past 10 years, air quality has been worsening.

Is Lake a good place to live for air quality?

Lake has a 10-year average median AQI of 38. In 2024, there were 201 days with "Good" air quality and 5 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect Lake the most?

The primary pollutant driving the AQI in Lake is Ozone. 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 Lake?

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