What is the current concentration of PM10 in O'fallon, Illinois?

The current PM10 concentration at O'fallon, Illinois is 24.903 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in O'fallon, Illinois?

The current sulfur dioxide (SO2) concentration at O'fallon, Illinois is 0.699 ppb.

What is the current concentration of ozone (O3) in O'fallon, Illinois?

The current ozone (O3) concentration at O'fallon, Illinois is 19.844 ppm.

What is the current concentration of nitrogen dioxide (NO2) in O'fallon, Illinois?

The current nitrogen dioxide (NO2) concentration at O'fallon, Illinois is 8.189 ppb.

O'Fallon, Illinois live air quality index now

Q: What is the current concentration of PM2.5 in O'fallon, Illinois?

The current PM2.5 concentration at O'fallon, Illinois is 6.121 μg/m3.

Stay updated with real-time air quality in O'Fallon, Illinois featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Good

O'Fallon, Illinois

Last updated: ... (Local time)

Major air pollutants in O'Fallon, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.12 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

24.90 μg/m³

155

255

425

605+

Ozone (O₃)

19.84 ppb

201

201+

Sulfur Dioxide (SO₂)

0.70 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.19 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.14 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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O'Fallon, Illinois

Scroll To Air Quality Map

Track live O'Fallon, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-02-09T06:00:00.000Z	38 \| good	7.019 \| good	24.165 \| good	21.48 \| good	0.415 \| good	12.657 \| good	0.278 \| good
2026-02-09T07:00:00.000Z	38 \| good	6.689 \| good	29.352 \| good	17.067 \| good	0.404 \| good	12.848 \| good	0.272 \| good
2026-02-09T08:00:00.000Z	38 \| good	6.775 \| good	26.859 \| good	21.002 \| good	0.405 \| good	13.055 \| good	0.276 \| good
2026-02-09T09:00:00.000Z	38 \| good	6.574 \| good	25.554 \| good	20.781 \| good	0.904 \| good	6.652 \| good	0.172 \| good
2026-02-09T10:00:00.000Z	33 \| good	6.129 \| good	25.173 \| good	15.189 \| good	0.408 \| good	13.594 \| good	0.228 \| good
2026-02-09T11:00:00.000Z	33 \| good	6.455 \| good	25.277 \| good	13.081 \| good	0.508 \| good	13.654 \| good	0.233 \| good
2026-02-09T12:00:00.000Z	44 \| good	5.979 \| good	46.661 \| good	8.549 \| good	0.494 \| good	17.097 \| good	0.282 \| good
2026-02-09T13:00:00.000Z	33 \| good	6.425 \| good	32.892 \| good	13.575 \| good	0.505 \| good	17.294 \| good	0.288 \| good
2026-02-09T14:00:00.000Z	33 \| good	5.964 \| good	32.765 \| good	8.522 \| good	0.523 \| good	19.028 \| good	0.385 \| good
2026-02-09T15:00:00.000Z	33 \| good	5.689 \| good	36.371 \| good	11.362 \| good	0.676 \| good	16.142 \| good	0.354 \| good
2026-02-09T16:00:00.000Z	33 \| good	6.312 \| good	30.901 \| good	13.455 \| good	0.8 \| good	13.846 \| good	0.357 \| good
2026-02-09T17:00:00.000Z	38 \| good	6.88 \| good	29.215 \| good	16.56 \| good	0.983 \| good	14.498 \| good	0.323 \| good
2026-02-09T18:00:00.000Z	44 \| good	7.985 \| good	43.358 \| good	20.112 \| good	1.241 \| good	13.786 \| good	0.329 \| good
2026-02-09T19:00:00.000Z	54 \| moderate	11.347 \| good	42.971 \| good	23.824 \| good	1.675 \| good	13.98 \| good	0.282 \| good
2026-02-09T20:00:00.000Z	69 \| moderate	19.444 \| fine	73.892 \| fine	23.144 \| good	2.356 \| good	13.981 \| good	0.317 \| good
2026-02-09T21:00:00.000Z	69 \| moderate	18.673 \| fine	82.188 \| fine	27.316 \| good	2.781 \| good	11.879 \| good	0.303 \| good
2026-02-09T22:00:00.000Z	68 \| moderate	17.23 \| fine	90.006 \| fine	31.568 \| good	2.847 \| good	12.654 \| good	0.357 \| good
2026-02-09T23:00:00.000Z	58 \| moderate	12.667 \| fine	64.205 \| fine	31.19 \| good	2.844 \| good	12.619 \| good	0.323 \| good
2026-02-10T00:00:00.000Z	58 \| moderate	12.735 \| fine	63.175 \| fine	27.563 \| good	2.92 \| good	12.085 \| good	0.317 \| good
2026-02-10T01:00:00.000Z	58 \| moderate	13.156 \| fine	61.076 \| fine	33.236 \| good	1.8 \| good	14.191 \| good	0.323 \| good
2026-02-10T02:00:00.000Z	60 \| moderate	13.859 \| fine	54.268 \| good	29.258 \| good	1.305 \| good	16.966 \| good	0.387 \| good
2026-02-10T03:00:00.000Z	58 \| moderate	12.995 \| fine	48.885 \| good	26.963 \| good	2.161 \| good	15.253 \| good	0.338 \| good
2026-02-10T04:00:00.000Z	58 \| moderate	12.79 \| fine	55.38 \| fine	26.125 \| good	1.056 \| good	11.944 \| good	0.256 \| good
2026-02-10T05:00:00.000Z	60 \| moderate	13.611 \| fine	60.821 \| fine	25.641 \| good	0.817 \| good	15.631 \| good	0.295 \| good
2026-02-10T06:00:00.000Z	60 \| moderate	14.243 \| fine	53.753 \| good	22.554 \| good	0.673 \| good	18.133 \| good	0.281 \| good
2026-02-10T07:00:00.000Z	58 \| moderate	12.557 \| fine	56.747 \| fine	15.661 \| good	0.672 \| good	18.154 \| good	0.269 \| good
2026-02-10T08:00:00.000Z	58 \| moderate	13.392 \| fine	59.04 \| fine	16.642 \| good	0.671 \| good	18.146 \| good	0.263 \| good
2026-02-10T09:00:00.000Z	58 \| moderate	13.324 \| fine	57.307 \| fine	14.8 \| good	0.634 \| good	14.058 \| good	0.257 \| good
2026-02-10T10:00:00.000Z	58 \| moderate	12.521 \| fine	61.227 \| fine	9.509 \| good	0.649 \| good	12.218 \| good	0.217 \| good
2026-02-10T11:00:00.000Z	56 \| moderate	11.591 \| good	47.449 \| good	24.157 \| good	0.477 \| good	12.325 \| good	0.223 \| good
2026-02-10T12:00:00.000Z	58 \| moderate	13.225 \| fine	60.278 \| fine	23.334 \| good	0.492 \| good	13.446 \| good	0.251 \| good
2026-02-10T13:00:00.000Z	62 \| moderate	15.19 \| fine	74.648 \| fine	22.339 \| good	0.795 \| good	19.108 \| good	0.334 \| good
2026-02-10T14:00:00.000Z	62 \| moderate	15.196 \| fine	63.952 \| fine	18.791 \| good	3.126 \| good	18.664 \| good	0.363 \| good
2026-02-10T15:00:00.000Z	64 \| moderate	16.444 \| fine	64.536 \| fine	21.806 \| good	4.93 \| good	16.266 \| good	0.412 \| good
2026-02-10T16:00:00.000Z	66 \| moderate	17.307 \| fine	47.989 \| good	20.781 \| good	2.36 \| good	15.035 \| good	0.365 \| good
2026-02-10T17:00:00.000Z	64 \| moderate	15.747 \| fine	57.435 \| fine	23.449 \| good	1.061 \| good	6.236 \| good	0.269 \| good
2026-02-10T18:00:00.000Z	60 \| moderate	13.646 \| fine	71.032 \| fine	26.447 \| good	0.663 \| good	3.558 \| good	0.276 \| good
2026-02-10T19:00:00.000Z	58 \| moderate	12.836 \| fine	38.69 \| good	31.002 \| good	0.591 \| good	4.068 \| good	0.272 \| good
2026-02-10T20:00:00.000Z	58 \| moderate	12.612 \| fine	51.984 \| good	33.412 \| good	0.525 \| good	3.734 \| good	0.278 \| good
2026-02-10T21:00:00.000Z	60 \| moderate	14.161 \| fine	62.78 \| fine	38.364 \| good	0.685 \| good	4.38 \| good	0.193 \| good
2026-02-10T22:00:00.000Z	56 \| moderate	11.892 \| good	56.164 \| fine	39.641 \| good	0.542 \| good	4.316 \| good	0.199 \| good
2026-02-10T23:00:00.000Z	52 \| moderate	9.875 \| good	43.536 \| good	36.981 \| good	0.396 \| good	4.174 \| good	0.199 \| good
2026-02-11T00:00:00.000Z	49 \| good	8.609 \| good	35.581 \| good	36.393 \| good	0.45 \| good	5.503 \| good	0.206 \| good
2026-02-11T01:00:00.000Z	44 \| good	7.862 \| good	34.975 \| good	31.487 \| good	0.417 \| good	5.951 \| good	0.217 \| good
2026-02-11T02:00:00.000Z	38 \| good	6.744 \| good	32.032 \| good	29.189 \| good	0.561 \| good	6.727 \| good	0.195 \| good
2026-02-11T03:00:00.000Z	38 \| good	6.79 \| good	22.833 \| good	25.781 \| good	0.366 \| good	5.129 \| good	0.145 \| good
2026-02-11T04:00:00.000Z	38 \| good	6.988 \| good	27.284 \| good	21.767 \| good	0.726 \| good	7.812 \| good	0.145 \| good
2026-02-11T05:00:00.000Z	33 \| good	6.121 \| good	24.903 \| good	19.844 \| good	0.699 \| good	8.189 \| good	0.145 \| good
2026-02-11T05:00:00.000Z	33 \| good	6.121 \| good	24.903 \| good	19.844 \| good	0.699 \| good	8.189 \| good	0.145 \| good
2026-02-11T06:00:00.000Z	27 \| good	4.75 \| good	20.977 \| good	20.232 \| good	0.525 \| good	3.327 \| good	0.187 \| good
2026-02-11T07:00:00.000Z	22 \| good	4.459 \| good	19.063 \| good	18.664 \| good	0.488 \| good	3.018 \| good	0.185 \| good
2026-02-11T08:00:00.000Z	27 \| good	4.94 \| good	21.098 \| good	16.329 \| good	0.451 \| good	2.708 \| good	0.183 \| good
2026-02-11T09:00:00.000Z	27 \| good	4.783 \| good	20.895 \| good	14.378 \| good	0.414 \| good	2.399 \| good	0.18 \| good
2026-02-11T10:00:00.000Z	27 \| good	5.173 \| good	22.651 \| good	10.083 \| good	0.428 \| good	2.607 \| good	0.181 \| good
2026-02-11T11:00:00.000Z	33 \| good	5.58 \| good	23.866 \| good	9.132 \| good	0.442 \| good	2.814 \| good	0.183 \| good
2026-02-11T12:00:00.000Z	27 \| good	4.871 \| good	20.844 \| good	8.138 \| good	0.455 \| good	3.022 \| good	0.184 \| good
2026-02-11T13:00:00.000Z	27 \| good	5.01 \| good	21.681 \| good	7.587 \| good	0.532 \| good	3.309 \| good	0.19 \| good
2026-02-11T14:00:00.000Z	33 \| good	6.288 \| good	27.813 \| good	10.256 \| good	0.609 \| good	3.596 \| good	0.196 \| good
2026-02-11T15:00:00.000Z	27 \| good	5.167 \| good	22.07 \| good	15.398 \| good	0.685 \| good	3.883 \| good	0.202 \| good
2026-02-11T16:00:00.000Z	27 \| good	5.05 \| good	21.853 \| good	18.045 \| good	0.863 \| good	3.461 \| good	0.194 \| good
2026-02-11T17:00:00.000Z	27 \| good	5.024 \| good	21.818 \| good	20.104 \| good	1.04 \| good	3.039 \| good	0.186 \| good
2026-02-11T18:00:00.000Z	27 \| good	4.738 \| good	20.704 \| good	22.965 \| good	1.218 \| good	2.618 \| good	0.178 \| good
2026-02-11T19:00:00.000Z	25 \| good	4.329 \| good	18.977 \| good	26.509 \| good	1.37 \| good	2.611 \| good	0.174 \| good
2026-02-11T20:00:00.000Z	27 \| good	3.638 \| good	15.977 \| good	28.605 \| good	1.523 \| good	2.603 \| good	0.17 \| good
2026-02-11T21:00:00.000Z	28 \| good	3.428 \| good	14.977 \| good	29.523 \| good	1.676 \| good	2.596 \| good	0.165 \| good
2026-02-11T22:00:00.000Z	26 \| good	3.859 \| good	16.795 \| good	28.027 \| good	1.686 \| good	6.48 \| good	0.197 \| good
2026-02-11T23:00:00.000Z	22 \| good	3.812 \| good	16.389 \| good	23.992 \| good	1.696 \| good	10.365 \| good	0.228 \| good
2026-02-12T00:00:00.000Z	22 \| good	3.86 \| good	17.135 \| good	17.373 \| good	1.706 \| good	14.249 \| good	0.259 \| good
2026-02-12T01:00:00.000Z	27 \| good	4.987 \| good	21.498 \| good	16.442 \| good	1.881 \| good	17.863 \| good	0.317 \| good
2026-02-12T02:00:00.000Z	27 \| good	5.162 \| good	22.487 \| good	15.229 \| good	2.056 \| good	21.477 \| good	0.374 \| good
2026-02-12T03:00:00.000Z	27 \| good	5.47 \| good	23.615 \| good	14.072 \| good	2.231 \| good	25.091 \| good	0.432 \| good
2026-02-12T04:00:00.000Z	27 \| good	5.395 \| good	22.977 \| good	13.544 \| good	2.407 \| good	25.377 \| good	0.466 \| good
2026-02-12T05:00:00.000Z	27 \| good	5.242 \| good	22.783 \| good	14.633 \| good	2.583 \| good	25.662 \| good	0.499 \| good
2026-02-12T06:00:00.000Z	27 \| good	5.318 \| good	23.187 \| good	14.611 \| good	2.759 \| good	25.947 \| good	0.533 \| good
2026-02-12T07:00:00.000Z	27 \| good	5.45 \| good	23.216 \| good	14.937 \| good	2.735 \| good	25.821 \| good	0.536 \| good
2026-02-12T08:00:00.000Z	33 \| good	5.68 \| good	24.212 \| good	13.723 \| good	2.712 \| good	25.695 \| good	0.538 \| good
2026-02-12T09:00:00.000Z	27 \| good	5.335 \| good	22.939 \| good	11.604 \| good	2.689 \| good	25.568 \| good	0.541 \| good
2026-02-12T10:00:00.000Z	24 \| good	4.411 \| good	18.975 \| good	11.716 \| good	2.482 \| good	24.813 \| good	0.505 \| good
2026-02-12T11:00:00.000Z	23 \| good	3.982 \| good	17.655 \| good	10.302 \| good	2.274 \| good	24.058 \| good	0.47 \| good
2026-02-12T12:00:00.000Z	22 \| good	3.499 \| good	15.554 \| good	9.843 \| good	2.067 \| good	23.304 \| good	0.434 \| good
2026-02-12T13:00:00.000Z	22 \| good	4.197 \| good	18.613 \| good	11.347 \| good	1.943 \| good	20.091 \| good	0.403 \| good
2026-02-12T14:00:00.000Z	27 \| good	5.154 \| good	22.571 \| good	13.049 \| good	1.819 \| good	16.878 \| good	0.371 \| good
2026-02-12T15:00:00.000Z	22 \| good	3.815 \| good	16.697 \| good	18.295 \| good	1.694 \| good	13.666 \| good	0.339 \| good
2026-02-12T16:00:00.000Z	22 \| good	3.882 \| good	16.935 \| good	21.853 \| good	2.227 \| good	10.463 \| good	0.287 \| good
2026-02-12T17:00:00.000Z	22 \| good	4.323 \| good	18.916 \| good	20.804 \| good	2.759 \| good	7.261 \| good	0.236 \| good
2026-02-12T18:00:00.000Z	33 \| good	6.261 \| good	27.738 \| good	20.355 \| good	3.292 \| good	4.058 \| good	0.185 \| good
2026-02-12T19:00:00.000Z	38 \| good	7.123 \| good	31.712 \| good	20.743 \| good	3.45 \| good	4.26 \| good	0.182 \| good
2026-02-12T20:00:00.000Z	44 \| good	8.013 \| good	34.867 \| good	22.592 \| good	3.607 \| good	4.462 \| good	0.179 \| good
2026-02-12T21:00:00.000Z	49 \| good	8.628 \| good	37.798 \| good	24.457 \| good	3.765 \| good	4.664 \| good	0.177 \| good
2026-02-12T22:00:00.000Z	38 \| good	6.902 \| good	30.717 \| good	27.057 \| good	3.598 \| good	5.531 \| good	0.184 \| good
2026-02-12T23:00:00.000Z	38 \| good	6.898 \| good	30.292 \| good	26.673 \| good	3.432 \| good	6.399 \| good	0.191 \| good
2026-02-13T00:00:00.000Z	33 \| good	6.081 \| good	27.112 \| good	27.619 \| good	3.266 \| good	7.266 \| good	0.198 \| good
2026-02-13T01:00:00.000Z	33 \| good	6.122 \| good	27.304 \| good	29.921 \| good	3.076 \| good	7.201 \| good	0.199 \| good
2026-02-13T02:00:00.000Z	49 \| good	8.535 \| good	37.442 \| good	29.145 \| good	2.885 \| good	7.136 \| good	0.2 \| good
2026-02-13T03:00:00.000Z	38 \| good	7.244 \| good	32.092 \| good	27.759 \| good	2.695 \| good	7.071 \| good	0.201 \| good
2026-02-13T04:00:00.000Z	33 \| good	6.354 \| good	28.057 \| good	25.423 \| good	2.463 \| good	6.81 \| good	0.201 \| good
2026-02-13T05:00:00.000Z	38 \| good	6.733 \| good	30.015 \| good	23.635 \| good	2.23 \| good	6.548 \| good	0.2 \| good

O'Fallon

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O'Fallon, Illinois air quality map: Track AQI near you

0.14ppm

How accurate is Illinois, USA air quality data?

Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for O'fallon, Illinois updated?

The air quality for O'fallon, Illinois is updated every hour.

When was the worst air quality at O'fallon, Illinois in the last 24 hrs?

The worst air quality in O'fallon, Illinois in the last 24 hours was observed at 04:00:00 on 2026-02-10.

When was the best air quality at O'fallon, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in O'fallon, Illinois was observed at 04:00:00 on 2026-02-11.

What is the current air quality in O'fallon, Illinois?

The current air quality in O'fallon, Illinois is 33, categorized as Good based on real-time data.

What pollutant is the most common in O'fallon, Illinois?

The most common pollutant in O'fallon, Illinois is PM2.5.

What should I do if the air quality in O'fallon, Illinois is poor?

If the air quality in O'fallon, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in O'fallon, Illinois?

The current PM_2.5 concentration at O'fallon, Illinois is 6.121 μg/m³.

What is the current concentration of PM₁₀ in O'fallon, Illinois?

The current PM₁₀ concentration at O'fallon, Illinois is 24.903 μg/m³.

What is the current concentration of carbon monoxide (CO) in O'fallon, Illinois?

The current carbon monoxide (CO) concentration at O'fallon, Illinois is 0.145 ppm.

What is the current concentration of sulfur dioxide (SO₂) in O'fallon, Illinois?

The current sulfur dioxide (SO₂) concentration at O'fallon, Illinois is 0.699 ppb.

What is the current concentration of ozone (O₃) in O'fallon, Illinois?

The current ozone (O₃) concentration at O'fallon, Illinois is 19.844 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in O'fallon, Illinois?

The current nitrogen dioxide (NO₂) concentration at O'fallon, Illinois is 8.189 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-02-09T06:00:00.000Z	38 \| good	7.019 \| good	24.165 \| good	21.48 \| good	0.415 \| good	12.657 \| good	0.278 \| good
2026-02-09T07:00:00.000Z	38 \| good	6.689 \| good	29.352 \| good	17.067 \| good	0.404 \| good	12.848 \| good	0.272 \| good
2026-02-09T08:00:00.000Z	38 \| good	6.775 \| good	26.859 \| good	21.002 \| good	0.405 \| good	13.055 \| good	0.276 \| good
2026-02-09T09:00:00.000Z	38 \| good	6.574 \| good	25.554 \| good	20.781 \| good	0.904 \| good	6.652 \| good	0.172 \| good
2026-02-09T10:00:00.000Z	33 \| good	6.129 \| good	25.173 \| good	15.189 \| good	0.408 \| good	13.594 \| good	0.228 \| good
2026-02-09T11:00:00.000Z	33 \| good	6.455 \| good	25.277 \| good	13.081 \| good	0.508 \| good	13.654 \| good	0.233 \| good
2026-02-09T12:00:00.000Z	44 \| good	5.979 \| good	46.661 \| good	8.549 \| good	0.494 \| good	17.097 \| good	0.282 \| good
2026-02-09T13:00:00.000Z	33 \| good	6.425 \| good	32.892 \| good	13.575 \| good	0.505 \| good	17.294 \| good	0.288 \| good
2026-02-09T14:00:00.000Z	33 \| good	5.964 \| good	32.765 \| good	8.522 \| good	0.523 \| good	19.028 \| good	0.385 \| good
2026-02-09T15:00:00.000Z	33 \| good	5.689 \| good	36.371 \| good	11.362 \| good	0.676 \| good	16.142 \| good	0.354 \| good
2026-02-09T16:00:00.000Z	33 \| good	6.312 \| good	30.901 \| good	13.455 \| good	0.8 \| good	13.846 \| good	0.357 \| good
2026-02-09T17:00:00.000Z	38 \| good	6.88 \| good	29.215 \| good	16.56 \| good	0.983 \| good	14.498 \| good	0.323 \| good
2026-02-09T18:00:00.000Z	44 \| good	7.985 \| good	43.358 \| good	20.112 \| good	1.241 \| good	13.786 \| good	0.329 \| good
2026-02-09T19:00:00.000Z	54 \| moderate	11.347 \| good	42.971 \| good	23.824 \| good	1.675 \| good	13.98 \| good	0.282 \| good
2026-02-09T20:00:00.000Z	69 \| moderate	19.444 \| fine	73.892 \| fine	23.144 \| good	2.356 \| good	13.981 \| good	0.317 \| good
2026-02-09T21:00:00.000Z	69 \| moderate	18.673 \| fine	82.188 \| fine	27.316 \| good	2.781 \| good	11.879 \| good	0.303 \| good
2026-02-09T22:00:00.000Z	68 \| moderate	17.23 \| fine	90.006 \| fine	31.568 \| good	2.847 \| good	12.654 \| good	0.357 \| good
2026-02-09T23:00:00.000Z	58 \| moderate	12.667 \| fine	64.205 \| fine	31.19 \| good	2.844 \| good	12.619 \| good	0.323 \| good
2026-02-10T00:00:00.000Z	58 \| moderate	12.735 \| fine	63.175 \| fine	27.563 \| good	2.92 \| good	12.085 \| good	0.317 \| good
2026-02-10T01:00:00.000Z	58 \| moderate	13.156 \| fine	61.076 \| fine	33.236 \| good	1.8 \| good	14.191 \| good	0.323 \| good
2026-02-10T02:00:00.000Z	60 \| moderate	13.859 \| fine	54.268 \| good	29.258 \| good	1.305 \| good	16.966 \| good	0.387 \| good
2026-02-10T03:00:00.000Z	58 \| moderate	12.995 \| fine	48.885 \| good	26.963 \| good	2.161 \| good	15.253 \| good	0.338 \| good
2026-02-10T04:00:00.000Z	58 \| moderate	12.79 \| fine	55.38 \| fine	26.125 \| good	1.056 \| good	11.944 \| good	0.256 \| good
2026-02-10T05:00:00.000Z	60 \| moderate	13.611 \| fine	60.821 \| fine	25.641 \| good	0.817 \| good	15.631 \| good	0.295 \| good
2026-02-10T06:00:00.000Z	60 \| moderate	14.243 \| fine	53.753 \| good	22.554 \| good	0.673 \| good	18.133 \| good	0.281 \| good
2026-02-10T07:00:00.000Z	58 \| moderate	12.557 \| fine	56.747 \| fine	15.661 \| good	0.672 \| good	18.154 \| good	0.269 \| good
2026-02-10T08:00:00.000Z	58 \| moderate	13.392 \| fine	59.04 \| fine	16.642 \| good	0.671 \| good	18.146 \| good	0.263 \| good
2026-02-10T09:00:00.000Z	58 \| moderate	13.324 \| fine	57.307 \| fine	14.8 \| good	0.634 \| good	14.058 \| good	0.257 \| good
2026-02-10T10:00:00.000Z	58 \| moderate	12.521 \| fine	61.227 \| fine	9.509 \| good	0.649 \| good	12.218 \| good	0.217 \| good
2026-02-10T11:00:00.000Z	56 \| moderate	11.591 \| good	47.449 \| good	24.157 \| good	0.477 \| good	12.325 \| good	0.223 \| good
2026-02-10T12:00:00.000Z	58 \| moderate	13.225 \| fine	60.278 \| fine	23.334 \| good	0.492 \| good	13.446 \| good	0.251 \| good
2026-02-10T13:00:00.000Z	62 \| moderate	15.19 \| fine	74.648 \| fine	22.339 \| good	0.795 \| good	19.108 \| good	0.334 \| good
2026-02-10T14:00:00.000Z	62 \| moderate	15.196 \| fine	63.952 \| fine	18.791 \| good	3.126 \| good	18.664 \| good	0.363 \| good
2026-02-10T15:00:00.000Z	64 \| moderate	16.444 \| fine	64.536 \| fine	21.806 \| good	4.93 \| good	16.266 \| good	0.412 \| good
2026-02-10T16:00:00.000Z	66 \| moderate	17.307 \| fine	47.989 \| good	20.781 \| good	2.36 \| good	15.035 \| good	0.365 \| good
2026-02-10T17:00:00.000Z	64 \| moderate	15.747 \| fine	57.435 \| fine	23.449 \| good	1.061 \| good	6.236 \| good	0.269 \| good
2026-02-10T18:00:00.000Z	60 \| moderate	13.646 \| fine	71.032 \| fine	26.447 \| good	0.663 \| good	3.558 \| good	0.276 \| good
2026-02-10T19:00:00.000Z	58 \| moderate	12.836 \| fine	38.69 \| good	31.002 \| good	0.591 \| good	4.068 \| good	0.272 \| good
2026-02-10T20:00:00.000Z	58 \| moderate	12.612 \| fine	51.984 \| good	33.412 \| good	0.525 \| good	3.734 \| good	0.278 \| good
2026-02-10T21:00:00.000Z	60 \| moderate	14.161 \| fine	62.78 \| fine	38.364 \| good	0.685 \| good	4.38 \| good	0.193 \| good
2026-02-10T22:00:00.000Z	56 \| moderate	11.892 \| good	56.164 \| fine	39.641 \| good	0.542 \| good	4.316 \| good	0.199 \| good
2026-02-10T23:00:00.000Z	52 \| moderate	9.875 \| good	43.536 \| good	36.981 \| good	0.396 \| good	4.174 \| good	0.199 \| good
2026-02-11T00:00:00.000Z	49 \| good	8.609 \| good	35.581 \| good	36.393 \| good	0.45 \| good	5.503 \| good	0.206 \| good
2026-02-11T01:00:00.000Z	44 \| good	7.862 \| good	34.975 \| good	31.487 \| good	0.417 \| good	5.951 \| good	0.217 \| good
2026-02-11T02:00:00.000Z	38 \| good	6.744 \| good	32.032 \| good	29.189 \| good	0.561 \| good	6.727 \| good	0.195 \| good
2026-02-11T03:00:00.000Z	38 \| good	6.79 \| good	22.833 \| good	25.781 \| good	0.366 \| good	5.129 \| good	0.145 \| good
2026-02-11T04:00:00.000Z	38 \| good	6.988 \| good	27.284 \| good	21.767 \| good	0.726 \| good	7.812 \| good	0.145 \| good
2026-02-11T05:00:00.000Z	33 \| good	6.121 \| good	24.903 \| good	19.844 \| good	0.699 \| good	8.189 \| good	0.145 \| good
2026-02-11T05:00:00.000Z	33 \| good	6.121 \| good	24.903 \| good	19.844 \| good	0.699 \| good	8.189 \| good	0.145 \| good
2026-02-11T06:00:00.000Z	27 \| good	4.75 \| good	20.977 \| good	20.232 \| good	0.525 \| good	3.327 \| good	0.187 \| good
2026-02-11T07:00:00.000Z	22 \| good	4.459 \| good	19.063 \| good	18.664 \| good	0.488 \| good	3.018 \| good	0.185 \| good
2026-02-11T08:00:00.000Z	27 \| good	4.94 \| good	21.098 \| good	16.329 \| good	0.451 \| good	2.708 \| good	0.183 \| good
2026-02-11T09:00:00.000Z	27 \| good	4.783 \| good	20.895 \| good	14.378 \| good	0.414 \| good	2.399 \| good	0.18 \| good
2026-02-11T10:00:00.000Z	27 \| good	5.173 \| good	22.651 \| good	10.083 \| good	0.428 \| good	2.607 \| good	0.181 \| good
2026-02-11T11:00:00.000Z	33 \| good	5.58 \| good	23.866 \| good	9.132 \| good	0.442 \| good	2.814 \| good	0.183 \| good
2026-02-11T12:00:00.000Z	27 \| good	4.871 \| good	20.844 \| good	8.138 \| good	0.455 \| good	3.022 \| good	0.184 \| good
2026-02-11T13:00:00.000Z	27 \| good	5.01 \| good	21.681 \| good	7.587 \| good	0.532 \| good	3.309 \| good	0.19 \| good
2026-02-11T14:00:00.000Z	33 \| good	6.288 \| good	27.813 \| good	10.256 \| good	0.609 \| good	3.596 \| good	0.196 \| good
2026-02-11T15:00:00.000Z	27 \| good	5.167 \| good	22.07 \| good	15.398 \| good	0.685 \| good	3.883 \| good	0.202 \| good
2026-02-11T16:00:00.000Z	27 \| good	5.05 \| good	21.853 \| good	18.045 \| good	0.863 \| good	3.461 \| good	0.194 \| good
2026-02-11T17:00:00.000Z	27 \| good	5.024 \| good	21.818 \| good	20.104 \| good	1.04 \| good	3.039 \| good	0.186 \| good
2026-02-11T18:00:00.000Z	27 \| good	4.738 \| good	20.704 \| good	22.965 \| good	1.218 \| good	2.618 \| good	0.178 \| good
2026-02-11T19:00:00.000Z	25 \| good	4.329 \| good	18.977 \| good	26.509 \| good	1.37 \| good	2.611 \| good	0.174 \| good
2026-02-11T20:00:00.000Z	27 \| good	3.638 \| good	15.977 \| good	28.605 \| good	1.523 \| good	2.603 \| good	0.17 \| good
2026-02-11T21:00:00.000Z	28 \| good	3.428 \| good	14.977 \| good	29.523 \| good	1.676 \| good	2.596 \| good	0.165 \| good
2026-02-11T22:00:00.000Z	26 \| good	3.859 \| good	16.795 \| good	28.027 \| good	1.686 \| good	6.48 \| good	0.197 \| good
2026-02-11T23:00:00.000Z	22 \| good	3.812 \| good	16.389 \| good	23.992 \| good	1.696 \| good	10.365 \| good	0.228 \| good
2026-02-12T00:00:00.000Z	22 \| good	3.86 \| good	17.135 \| good	17.373 \| good	1.706 \| good	14.249 \| good	0.259 \| good
2026-02-12T01:00:00.000Z	27 \| good	4.987 \| good	21.498 \| good	16.442 \| good	1.881 \| good	17.863 \| good	0.317 \| good
2026-02-12T02:00:00.000Z	27 \| good	5.162 \| good	22.487 \| good	15.229 \| good	2.056 \| good	21.477 \| good	0.374 \| good
2026-02-12T03:00:00.000Z	27 \| good	5.47 \| good	23.615 \| good	14.072 \| good	2.231 \| good	25.091 \| good	0.432 \| good
2026-02-12T04:00:00.000Z	27 \| good	5.395 \| good	22.977 \| good	13.544 \| good	2.407 \| good	25.377 \| good	0.466 \| good
2026-02-12T05:00:00.000Z	27 \| good	5.242 \| good	22.783 \| good	14.633 \| good	2.583 \| good	25.662 \| good	0.499 \| good
2026-02-12T06:00:00.000Z	27 \| good	5.318 \| good	23.187 \| good	14.611 \| good	2.759 \| good	25.947 \| good	0.533 \| good
2026-02-12T07:00:00.000Z	27 \| good	5.45 \| good	23.216 \| good	14.937 \| good	2.735 \| good	25.821 \| good	0.536 \| good
2026-02-12T08:00:00.000Z	33 \| good	5.68 \| good	24.212 \| good	13.723 \| good	2.712 \| good	25.695 \| good	0.538 \| good
2026-02-12T09:00:00.000Z	27 \| good	5.335 \| good	22.939 \| good	11.604 \| good	2.689 \| good	25.568 \| good	0.541 \| good
2026-02-12T10:00:00.000Z	24 \| good	4.411 \| good	18.975 \| good	11.716 \| good	2.482 \| good	24.813 \| good	0.505 \| good
2026-02-12T11:00:00.000Z	23 \| good	3.982 \| good	17.655 \| good	10.302 \| good	2.274 \| good	24.058 \| good	0.47 \| good
2026-02-12T12:00:00.000Z	22 \| good	3.499 \| good	15.554 \| good	9.843 \| good	2.067 \| good	23.304 \| good	0.434 \| good
2026-02-12T13:00:00.000Z	22 \| good	4.197 \| good	18.613 \| good	11.347 \| good	1.943 \| good	20.091 \| good	0.403 \| good
2026-02-12T14:00:00.000Z	27 \| good	5.154 \| good	22.571 \| good	13.049 \| good	1.819 \| good	16.878 \| good	0.371 \| good
2026-02-12T15:00:00.000Z	22 \| good	3.815 \| good	16.697 \| good	18.295 \| good	1.694 \| good	13.666 \| good	0.339 \| good
2026-02-12T16:00:00.000Z	22 \| good	3.882 \| good	16.935 \| good	21.853 \| good	2.227 \| good	10.463 \| good	0.287 \| good
2026-02-12T17:00:00.000Z	22 \| good	4.323 \| good	18.916 \| good	20.804 \| good	2.759 \| good	7.261 \| good	0.236 \| good
2026-02-12T18:00:00.000Z	33 \| good	6.261 \| good	27.738 \| good	20.355 \| good	3.292 \| good	4.058 \| good	0.185 \| good
2026-02-12T19:00:00.000Z	38 \| good	7.123 \| good	31.712 \| good	20.743 \| good	3.45 \| good	4.26 \| good	0.182 \| good
2026-02-12T20:00:00.000Z	44 \| good	8.013 \| good	34.867 \| good	22.592 \| good	3.607 \| good	4.462 \| good	0.179 \| good
2026-02-12T21:00:00.000Z	49 \| good	8.628 \| good	37.798 \| good	24.457 \| good	3.765 \| good	4.664 \| good	0.177 \| good
2026-02-12T22:00:00.000Z	38 \| good	6.902 \| good	30.717 \| good	27.057 \| good	3.598 \| good	5.531 \| good	0.184 \| good
2026-02-12T23:00:00.000Z	38 \| good	6.898 \| good	30.292 \| good	26.673 \| good	3.432 \| good	6.399 \| good	0.191 \| good
2026-02-13T00:00:00.000Z	33 \| good	6.081 \| good	27.112 \| good	27.619 \| good	3.266 \| good	7.266 \| good	0.198 \| good
2026-02-13T01:00:00.000Z	33 \| good	6.122 \| good	27.304 \| good	29.921 \| good	3.076 \| good	7.201 \| good	0.199 \| good
2026-02-13T02:00:00.000Z	49 \| good	8.535 \| good	37.442 \| good	29.145 \| good	2.885 \| good	7.136 \| good	0.2 \| good
2026-02-13T03:00:00.000Z	38 \| good	7.244 \| good	32.092 \| good	27.759 \| good	2.695 \| good	7.071 \| good	0.201 \| good
2026-02-13T04:00:00.000Z	33 \| good	6.354 \| good	28.057 \| good	25.423 \| good	2.463 \| good	6.81 \| good	0.201 \| good
2026-02-13T05:00:00.000Z	38 \| good	6.733 \| good	30.015 \| good	23.635 \| good	2.23 \| good	6.548 \| good	0.2 \| good

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Major air pollutants in O'Fallon, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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