What is the current concentration of PM10 in Columbia, Illinois?

The current PM10 concentration at Columbia, Illinois is 11.303 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Columbia, Illinois?

The current sulfur dioxide (SO2) concentration at Columbia, Illinois is 0.395 ppb.

What is the current concentration of ozone (O3) in Columbia, Illinois?

The current ozone (O3) concentration at Columbia, Illinois is 23.179 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Columbia, Illinois?

The current nitrogen dioxide (NO2) concentration at Columbia, Illinois is 3.726 ppb.

Columbia, Illinois live air quality index now

Q: What is the current concentration of PM2.5 in Columbia, Illinois?

The current PM2.5 concentration at Columbia, Illinois is 1.935 μg/m3.

Stay updated with real-time air quality in Columbia, 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

Columbia, Illinois

Last updated: ... (Local time)

Major air pollutants in Columbia, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.94 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

11.30 μg/m³

155

255

425

605+

Ozone (O₃)

23.18 ppb

201

201+

Sulfur Dioxide (SO₂)

0.40 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.73 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Columbia, Illinois

Get Live Pollen Counts

Columbia, Illinois

Scroll To Air Quality Map

Track live Columbia, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T12:00:00.000Z	16 \| good	2.971 \| good	12.188 \| good	9.483 \| good	0.471 \| good	15.52 \| good	0.288 \| good
2025-10-20T13:00:00.000Z	17 \| good	3.276 \| good	13.788 \| good	10.684 \| good	0.47 \| good	17.927 \| good	0.335 \| good
2025-10-20T14:00:00.000Z	16 \| good	3.032 \| good	12.905 \| good	11.08 \| good	0.637 \| good	13.947 \| good	0.346 \| good
2025-10-20T15:00:00.000Z	16 \| good	2.856 \| good	12.118 \| good	14.433 \| good	0.503 \| good	8.821 \| good	0.243 \| good
2025-10-20T16:00:00.000Z	17 \| good	2.187 \| good	9.903 \| good	18.382 \| good	0.425 \| good	6.341 \| good	0.243 \| good
2025-10-20T17:00:00.000Z	19 \| good	1.902 \| good	8.236 \| good	21.383 \| good	0.606 \| good	3.626 \| good	0.199 \| good
2025-10-20T18:00:00.000Z	26 \| good	2.858 \| good	17.016 \| good	27.693 \| good	0.782 \| good	3.649 \| good	0.198 \| good
2025-10-20T19:00:00.000Z	27 \| good	1.843 \| good	8.291 \| good	29.261 \| good	0.572 \| good	3.854 \| good	0.196 \| good
2025-10-20T20:00:00.000Z	30 \| good	2.615 \| good	12.247 \| good	31.676 \| good	0.54 \| good	3.876 \| good	0.245 \| good
2025-10-20T21:00:00.000Z	30 \| good	1.928 \| good	10.511 \| good	32.203 \| good	0.711 \| good	4.57 \| good	0.198 \| good
2025-10-20T22:00:00.000Z	32 \| good	1.971 \| good	10.61 \| good	34.722 \| good	0.742 \| good	4.294 \| good	0.197 \| good
2025-10-20T23:00:00.000Z	33 \| good	2.694 \| good	13.991 \| good	35.864 \| good	0.788 \| good	4.551 \| good	0.244 \| good
2025-10-21T00:00:00.000Z	32 \| good	2.125 \| good	12.284 \| good	34.661 \| good	0.787 \| good	4.931 \| good	0.244 \| good
2025-10-21T01:00:00.000Z	32 \| good	3.084 \| good	15.4 \| good	35.353 \| good	0.637 \| good	5.81 \| good	0.243 \| good
2025-10-21T02:00:00.000Z	32 \| good	3.591 \| good	14.44 \| good	34.686 \| good	0.687 \| good	5.576 \| good	0.197 \| good
2025-10-21T03:00:00.000Z	34 \| good	2.19 \| good	8.692 \| good	37.227 \| good	0.836 \| good	2.189 \| good	0.139 \| good
2025-10-21T04:00:00.000Z	30 \| good	2.823 \| good	13.67 \| good	32.466 \| good	0.682 \| good	4.219 \| good	0.248 \| good
2025-10-21T05:00:00.000Z	29 \| good	2.575 \| good	14.245 \| good	30.989 \| good	0.663 \| good	3.04 \| good	0.154 \| good
2025-10-21T06:00:00.000Z	28 \| good	3.63 \| good	19.609 \| good	30.447 \| good	0.781 \| good	2.844 \| good	0.155 \| good
2025-10-21T07:00:00.000Z	27 \| good	3.63 \| good	19.609 \| good	28.754 \| good	0.774 \| good	2.846 \| good	0.155 \| good
2025-10-21T08:00:00.000Z	26 \| good	3.573 \| good	19.419 \| good	28.101 \| good	0.771 \| good	2.85 \| good	0.156 \| good
2025-10-21T09:00:00.000Z	28 \| good	3.573 \| good	19.419 \| good	30.306 \| good	0.178 \| good	2.806 \| good	0.221 \| good
2025-10-21T10:00:00.000Z	24 \| good	2.537 \| good	12.971 \| good	26.069 \| good	0.323 \| good	4.391 \| good	0.205 \| good
2025-10-21T11:00:00.000Z	19 \| good	2.222 \| good	11.831 \| good	20.694 \| good	0.376 \| good	5.685 \| good	0.198 \| good
2025-10-21T12:00:00.000Z	19 \| good	2.332 \| good	12.327 \| good	20.692 \| good	0.367 \| good	8.211 \| good	0.246 \| good
2025-10-21T13:00:00.000Z	21 \| good	2.351 \| good	12.517 \| good	22.56 \| good	0.368 \| good	8.315 \| good	0.253 \| good
2025-10-21T14:00:00.000Z	18 \| good	2.596 \| good	12.479 \| good	18.918 \| good	0.704 \| good	8.354 \| good	0.302 \| good
2025-10-21T15:00:00.000Z	20 \| good	2.415 \| good	12.234 \| good	22.02 \| good	3.186 \| good	6.408 \| good	0.243 \| good
2025-10-21T16:00:00.000Z	22 \| good	3.031 \| good	12.4 \| good	23.913 \| good	1.073 \| good	4.115 \| good	0.197 \| good
2025-10-21T17:00:00.000Z	24 \| good	4.154 \| good	18.358 \| good	25.802 \| good	0.462 \| good	3.044 \| good	0.197 \| good
2025-10-21T18:00:00.000Z	29 \| good	3.466 \| good	16.833 \| good	31.087 \| good	0.386 \| good	2.722 \| good	0.147 \| good
2025-10-21T19:00:00.000Z	28 \| good	2.719 \| good	14.534 \| good	29.848 \| good	0.375 \| good	3.027 \| good	0.2 \| good
2025-10-21T20:00:00.000Z	29 \| good	2.687 \| good	12.024 \| good	31.206 \| good	0.369 \| good	2.992 \| good	0.2 \| good
2025-10-21T21:00:00.000Z	29 \| good	2.956 \| good	16.031 \| good	31.003 \| good	0.275 \| good	2.655 \| good	0.152 \| good
2025-10-21T22:00:00.000Z	29 \| good	1.405 \| good	8.522 \| good	31.238 \| good	0.316 \| good	2.796 \| good	0.102 \| good
2025-10-21T23:00:00.000Z	29 \| good	1.636 \| good	10.208 \| good	31.197 \| good	0.313 \| good	2.511 \| good	0.102 \| good
2025-10-22T00:00:00.000Z	31 \| good	1.914 \| good	11.035 \| good	33.711 \| good	0.384 \| good	3.357 \| good	0.102 \| good
2025-10-22T01:00:00.000Z	29 \| good	2.535 \| good	17.137 \| good	30.849 \| good	0.46 \| good	3.962 \| good	0.152 \| good
2025-10-22T02:00:00.000Z	29 \| good	1.46 \| good	9.681 \| good	31.293 \| good	0.453 \| good	5.087 \| good	0.197 \| good
2025-10-22T03:00:00.000Z	22 \| good	1.768 \| good	7.212 \| good	24.226 \| good	0.585 \| good	3.248 \| good	0.138 \| good
2025-10-22T04:00:00.000Z	26 \| good	1.545 \| good	9.633 \| good	28.432 \| good	0.386 \| good	5.695 \| good	0.197 \| good
2025-10-22T05:00:00.000Z	26 \| good	1.561 \| good	10.614 \| good	27.527 \| good	0.405 \| good	4.82 \| good	0.198 \| good
2025-10-22T06:00:00.000Z	23 \| good	1.615 \| good	10.239 \| good	25.424 \| good	0.405 \| good	4.506 \| good	0.197 \| good
2025-10-22T07:00:00.000Z	24 \| good	1.634 \| good	10.429 \| good	26.058 \| good	0.405 \| good	4.49 \| good	0.197 \| good
2025-10-22T08:00:00.000Z	22 \| good	1.615 \| good	10.239 \| good	23.95 \| good	0.407 \| good	4.48 \| good	0.197 \| good
2025-10-22T09:00:00.000Z	23 \| good	1.615 \| good	10.239 \| good	25.269 \| good	0.595 \| good	2.015 \| good	0.167 \| good
2025-10-22T10:00:00.000Z	21 \| good	1.935 \| good	11.303 \| good	23.179 \| good	0.395 \| good	3.726 \| good	0.152 \| good
2025-10-22T11:00:00.000Z	21 \| good	1.935 \| good	11.303 \| good	23.179 \| good	0.395 \| good	3.726 \| good	0.152 \| good
2025-10-22T12:00:00.000Z	22 \| good	4.497 \| good	19.292 \| good	16.898 \| good	0.613 \| good	2.924 \| good	0.126 \| good
2025-10-22T13:00:00.000Z	19 \| good	3.371 \| good	14.787 \| good	20.071 \| good	0.675 \| good	2.865 \| good	0.13 \| good
2025-10-22T14:00:00.000Z	23 \| good	2.802 \| good	11.786 \| good	25.269 \| good	0.736 \| good	2.806 \| good	0.134 \| good
2025-10-22T15:00:00.000Z	23 \| good	1.972 \| good	8.069 \| good	24.513 \| good	0.797 \| good	2.747 \| good	0.138 \| good
2025-10-22T16:00:00.000Z	22 \| good	1.541 \| good	6.043 \| good	24.392 \| good	0.796 \| good	2.314 \| good	0.134 \| good
2025-10-22T17:00:00.000Z	26 \| good	0.687 \| good	2.801 \| good	27.634 \| good	0.796 \| good	1.882 \| good	0.13 \| good
2025-10-22T18:00:00.000Z	27 \| good	0.347 \| good	1.148 \| good	28.996 \| good	0.796 \| good	1.449 \| good	0.125 \| good
2025-10-22T19:00:00.000Z	30 \| good	1.202 \| good	4.781 \| good	31.874 \| good	0.761 \| good	1.391 \| good	0.125 \| good
2025-10-22T20:00:00.000Z	30 \| good	1.937 \| good	8.02 \| good	31.709 \| good	0.726 \| good	1.333 \| good	0.126 \| good
2025-10-22T21:00:00.000Z	26 \| good	1.618 \| good	6.485 \| good	28.122 \| good	0.691 \| good	1.275 \| good	0.126 \| good
2025-10-22T22:00:00.000Z	26 \| good	1.136 \| good	4.436 \| good	27.991 \| good	0.728 \| good	3.211 \| good	0.143 \| good
2025-10-22T23:00:00.000Z	20 \| good	1.099 \| good	4.709 \| good	22.064 \| good	0.765 \| good	5.146 \| good	0.161 \| good
2025-10-23T00:00:00.000Z	19 \| good	0.651 \| good	2.215 \| good	19.742 \| good	0.801 \| good	7.081 \| good	0.179 \| good
2025-10-23T01:00:00.000Z	17 \| good	0.526 \| good	2.08 \| good	18.317 \| good	0.872 \| good	9.265 \| good	0.199 \| good
2025-10-23T02:00:00.000Z	17 \| good	0.367 \| good	1.235 \| good	18.192 \| good	0.943 \| good	11.45 \| good	0.219 \| good
2025-10-23T03:00:00.000Z	17 \| good	2.142 \| good	8.842 \| good	17.55 \| good	1.014 \| good	13.634 \| good	0.238 \| good
2025-10-23T04:00:00.000Z	15 \| good	2.262 \| good	9.569 \| good	16.056 \| good	0.979 \| good	12.696 \| good	0.231 \| good
2025-10-23T05:00:00.000Z	13 \| good	1.522 \| good	5.995 \| good	14.309 \| good	0.944 \| good	11.759 \| good	0.223 \| good
2025-10-23T06:00:00.000Z	11 \| good	2.304 \| good	9.645 \| good	9.895 \| good	0.909 \| good	10.822 \| good	0.215 \| good
2025-10-23T07:00:00.000Z	11 \| good	2.278 \| good	9.674 \| good	7.991 \| good	0.864 \| good	9.26 \| good	0.199 \| good
2025-10-23T08:00:00.000Z	16 \| good	2.882 \| good	11.766 \| good	7.301 \| good	0.819 \| good	7.698 \| good	0.182 \| good
2025-10-23T09:00:00.000Z	11 \| good	1.591 \| good	6.243 \| good	5.348 \| good	0.774 \| good	6.136 \| good	0.165 \| good
2025-10-23T10:00:00.000Z	11 \| good	1.815 \| good	7.51 \| good	1.605 \| good	0.796 \| good	6.69 \| good	0.168 \| good
2025-10-23T11:00:00.000Z	16 \| good	2.899 \| good	11.802 \| good	1.93 \| good	0.819 \| good	7.244 \| good	0.17 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.663 \| good	15.723 \| good	3.106 \| good	0.842 \| good	7.798 \| good	0.173 \| good
2025-10-23T13:00:00.000Z	22 \| good	3.591 \| good	15.56 \| good	5.517 \| good	0.971 \| good	6.87 \| good	0.174 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.507 \| good	19.467 \| good	11.803 \| good	1.1 \| good	5.942 \| good	0.176 \| good
2025-10-23T15:00:00.000Z	17 \| good	2.989 \| good	12.077 \| good	18.044 \| good	1.229 \| good	5.014 \| good	0.178 \| good
2025-10-23T16:00:00.000Z	21 \| good	2.836 \| good	11.849 \| good	23.399 \| good	1.158 \| good	3.92 \| good	0.164 \| good
2025-10-23T17:00:00.000Z	26 \| good	1.59 \| good	6.395 \| good	28.39 \| good	1.086 \| good	2.825 \| good	0.15 \| good
2025-10-23T18:00:00.000Z	30 \| good	1.591 \| good	6.244 \| good	32.127 \| good	1.015 \| good	1.731 \| good	0.136 \| good
2025-10-23T19:00:00.000Z	32 \| good	2.974 \| good	12.239 \| good	35.164 \| good	0.973 \| good	1.67 \| good	0.135 \| good
2025-10-23T20:00:00.000Z	32 \| good	3.308 \| good	14.53 \| good	35.485 \| good	0.931 \| good	1.61 \| good	0.134 \| good
2025-10-23T21:00:00.000Z	32 \| good	1.827 \| good	7.739 \| good	34.528 \| good	0.889 \| good	1.55 \| good	0.132 \| good
2025-10-23T22:00:00.000Z	33 \| good	5.517 \| good	24.014 \| good	32.855 \| good	0.91 \| good	4.838 \| good	0.162 \| good
2025-10-23T23:00:00.000Z	33 \| good	5.643 \| good	24.235 \| good	29.079 \| good	0.931 \| good	8.127 \| good	0.192 \| good
2025-10-24T00:00:00.000Z	38 \| good	6.679 \| good	29.664 \| good	24.301 \| good	0.952 \| good	11.416 \| good	0.221 \| good
2025-10-24T01:00:00.000Z	33 \| good	6.16 \| good	27.184 \| good	20.535 \| good	1.06 \| good	14.976 \| good	0.253 \| good
2025-10-24T02:00:00.000Z	38 \| good	6.679 \| good	29.201 \| good	18.613 \| good	1.168 \| good	18.536 \| good	0.284 \| good
2025-10-24T03:00:00.000Z	44 \| good	8.027 \| good	35.141 \| good	17.23 \| good	1.276 \| good	22.095 \| good	0.316 \| good
2025-10-24T04:00:00.000Z	44 \| good	7.866 \| good	34.534 \| good	16.134 \| good	1.274 \| good	22.504 \| good	0.325 \| good
2025-10-24T05:00:00.000Z	38 \| good	6.712 \| good	29.524 \| good	15.273 \| good	1.271 \| good	22.912 \| good	0.334 \| good
2025-10-24T06:00:00.000Z	64 \| moderate	15.983 \| fine	16.126 \| good	6.598 \| good	1.281 \| good	23.485 \| good	0.345 \| good
2025-10-24T07:00:00.000Z	27 \| good	4.6 \| good	19.928 \| good	13.263 \| good	1.191 \| good	21.265 \| good	0.322 \| good
2025-10-24T08:00:00.000Z	22 \| good	3.678 \| good	15.959 \| good	13.243 \| good	1.112 \| good	19.209 \| good	0.3 \| good
2025-10-24T09:00:00.000Z	22 \| good	3.682 \| good	16.145 \| good	12.856 \| good	1.034 \| good	17.153 \| good	0.279 \| good
2025-10-24T10:00:00.000Z	16 \| good	3.366 \| good	14.821 \| good	11.678 \| good	0.986 \| good	15.649 \| good	0.264 \| good
2025-10-24T11:00:00.000Z	27 \| good	5.311 \| good	23.151 \| good	8.419 \| good	0.937 \| good	14.144 \| good	0.25 \| good

Columbia

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Columbia, 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 Columbia, Illinois updated?

The air quality for Columbia, Illinois is updated every hour.

When was the worst air quality at Columbia, Illinois in the last 24 hrs?

The worst air quality in Columbia, Illinois in the last 24 hours was observed at 12:00:00 on 2025-10-22.

When was the best air quality at Columbia, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in Columbia, Illinois was observed at 02:00:00 on 2025-10-21.

What is the current air quality in Columbia, Illinois?

The current air quality in Columbia, Illinois is 21, categorized as Good based on real-time data.

What pollutant is the most common in Columbia, Illinois?

The most common pollutant in Columbia, Illinois is O3.

What should I do if the air quality in Columbia, Illinois is poor?

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

What is the current concentration of PM_2.5 in Columbia, Illinois?

The current PM_2.5 concentration at Columbia, Illinois is 1.935 μg/m³.

What is the current concentration of PM₁₀ in Columbia, Illinois?

The current PM₁₀ concentration at Columbia, Illinois is 11.303 μg/m³.

What is the current concentration of carbon monoxide (CO) in Columbia, Illinois?

The current carbon monoxide (CO) concentration at Columbia, Illinois is 0.152 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Columbia, Illinois?

The current sulfur dioxide (SO₂) concentration at Columbia, Illinois is 0.395 ppb.

What is the current concentration of ozone (O₃) in Columbia, Illinois?

The current ozone (O₃) concentration at Columbia, Illinois is 23.179 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Columbia, Illinois?

The current nitrogen dioxide (NO₂) concentration at Columbia, Illinois is 3.726 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T12:00:00.000Z	16 \| good	2.971 \| good	12.188 \| good	9.483 \| good	0.471 \| good	15.52 \| good	0.288 \| good
2025-10-20T13:00:00.000Z	17 \| good	3.276 \| good	13.788 \| good	10.684 \| good	0.47 \| good	17.927 \| good	0.335 \| good
2025-10-20T14:00:00.000Z	16 \| good	3.032 \| good	12.905 \| good	11.08 \| good	0.637 \| good	13.947 \| good	0.346 \| good
2025-10-20T15:00:00.000Z	16 \| good	2.856 \| good	12.118 \| good	14.433 \| good	0.503 \| good	8.821 \| good	0.243 \| good
2025-10-20T16:00:00.000Z	17 \| good	2.187 \| good	9.903 \| good	18.382 \| good	0.425 \| good	6.341 \| good	0.243 \| good
2025-10-20T17:00:00.000Z	19 \| good	1.902 \| good	8.236 \| good	21.383 \| good	0.606 \| good	3.626 \| good	0.199 \| good
2025-10-20T18:00:00.000Z	26 \| good	2.858 \| good	17.016 \| good	27.693 \| good	0.782 \| good	3.649 \| good	0.198 \| good
2025-10-20T19:00:00.000Z	27 \| good	1.843 \| good	8.291 \| good	29.261 \| good	0.572 \| good	3.854 \| good	0.196 \| good
2025-10-20T20:00:00.000Z	30 \| good	2.615 \| good	12.247 \| good	31.676 \| good	0.54 \| good	3.876 \| good	0.245 \| good
2025-10-20T21:00:00.000Z	30 \| good	1.928 \| good	10.511 \| good	32.203 \| good	0.711 \| good	4.57 \| good	0.198 \| good
2025-10-20T22:00:00.000Z	32 \| good	1.971 \| good	10.61 \| good	34.722 \| good	0.742 \| good	4.294 \| good	0.197 \| good
2025-10-20T23:00:00.000Z	33 \| good	2.694 \| good	13.991 \| good	35.864 \| good	0.788 \| good	4.551 \| good	0.244 \| good
2025-10-21T00:00:00.000Z	32 \| good	2.125 \| good	12.284 \| good	34.661 \| good	0.787 \| good	4.931 \| good	0.244 \| good
2025-10-21T01:00:00.000Z	32 \| good	3.084 \| good	15.4 \| good	35.353 \| good	0.637 \| good	5.81 \| good	0.243 \| good
2025-10-21T02:00:00.000Z	32 \| good	3.591 \| good	14.44 \| good	34.686 \| good	0.687 \| good	5.576 \| good	0.197 \| good
2025-10-21T03:00:00.000Z	34 \| good	2.19 \| good	8.692 \| good	37.227 \| good	0.836 \| good	2.189 \| good	0.139 \| good
2025-10-21T04:00:00.000Z	30 \| good	2.823 \| good	13.67 \| good	32.466 \| good	0.682 \| good	4.219 \| good	0.248 \| good
2025-10-21T05:00:00.000Z	29 \| good	2.575 \| good	14.245 \| good	30.989 \| good	0.663 \| good	3.04 \| good	0.154 \| good
2025-10-21T06:00:00.000Z	28 \| good	3.63 \| good	19.609 \| good	30.447 \| good	0.781 \| good	2.844 \| good	0.155 \| good
2025-10-21T07:00:00.000Z	27 \| good	3.63 \| good	19.609 \| good	28.754 \| good	0.774 \| good	2.846 \| good	0.155 \| good
2025-10-21T08:00:00.000Z	26 \| good	3.573 \| good	19.419 \| good	28.101 \| good	0.771 \| good	2.85 \| good	0.156 \| good
2025-10-21T09:00:00.000Z	28 \| good	3.573 \| good	19.419 \| good	30.306 \| good	0.178 \| good	2.806 \| good	0.221 \| good
2025-10-21T10:00:00.000Z	24 \| good	2.537 \| good	12.971 \| good	26.069 \| good	0.323 \| good	4.391 \| good	0.205 \| good
2025-10-21T11:00:00.000Z	19 \| good	2.222 \| good	11.831 \| good	20.694 \| good	0.376 \| good	5.685 \| good	0.198 \| good
2025-10-21T12:00:00.000Z	19 \| good	2.332 \| good	12.327 \| good	20.692 \| good	0.367 \| good	8.211 \| good	0.246 \| good
2025-10-21T13:00:00.000Z	21 \| good	2.351 \| good	12.517 \| good	22.56 \| good	0.368 \| good	8.315 \| good	0.253 \| good
2025-10-21T14:00:00.000Z	18 \| good	2.596 \| good	12.479 \| good	18.918 \| good	0.704 \| good	8.354 \| good	0.302 \| good
2025-10-21T15:00:00.000Z	20 \| good	2.415 \| good	12.234 \| good	22.02 \| good	3.186 \| good	6.408 \| good	0.243 \| good
2025-10-21T16:00:00.000Z	22 \| good	3.031 \| good	12.4 \| good	23.913 \| good	1.073 \| good	4.115 \| good	0.197 \| good
2025-10-21T17:00:00.000Z	24 \| good	4.154 \| good	18.358 \| good	25.802 \| good	0.462 \| good	3.044 \| good	0.197 \| good
2025-10-21T18:00:00.000Z	29 \| good	3.466 \| good	16.833 \| good	31.087 \| good	0.386 \| good	2.722 \| good	0.147 \| good
2025-10-21T19:00:00.000Z	28 \| good	2.719 \| good	14.534 \| good	29.848 \| good	0.375 \| good	3.027 \| good	0.2 \| good
2025-10-21T20:00:00.000Z	29 \| good	2.687 \| good	12.024 \| good	31.206 \| good	0.369 \| good	2.992 \| good	0.2 \| good
2025-10-21T21:00:00.000Z	29 \| good	2.956 \| good	16.031 \| good	31.003 \| good	0.275 \| good	2.655 \| good	0.152 \| good
2025-10-21T22:00:00.000Z	29 \| good	1.405 \| good	8.522 \| good	31.238 \| good	0.316 \| good	2.796 \| good	0.102 \| good
2025-10-21T23:00:00.000Z	29 \| good	1.636 \| good	10.208 \| good	31.197 \| good	0.313 \| good	2.511 \| good	0.102 \| good
2025-10-22T00:00:00.000Z	31 \| good	1.914 \| good	11.035 \| good	33.711 \| good	0.384 \| good	3.357 \| good	0.102 \| good
2025-10-22T01:00:00.000Z	29 \| good	2.535 \| good	17.137 \| good	30.849 \| good	0.46 \| good	3.962 \| good	0.152 \| good
2025-10-22T02:00:00.000Z	29 \| good	1.46 \| good	9.681 \| good	31.293 \| good	0.453 \| good	5.087 \| good	0.197 \| good
2025-10-22T03:00:00.000Z	22 \| good	1.768 \| good	7.212 \| good	24.226 \| good	0.585 \| good	3.248 \| good	0.138 \| good
2025-10-22T04:00:00.000Z	26 \| good	1.545 \| good	9.633 \| good	28.432 \| good	0.386 \| good	5.695 \| good	0.197 \| good
2025-10-22T05:00:00.000Z	26 \| good	1.561 \| good	10.614 \| good	27.527 \| good	0.405 \| good	4.82 \| good	0.198 \| good
2025-10-22T06:00:00.000Z	23 \| good	1.615 \| good	10.239 \| good	25.424 \| good	0.405 \| good	4.506 \| good	0.197 \| good
2025-10-22T07:00:00.000Z	24 \| good	1.634 \| good	10.429 \| good	26.058 \| good	0.405 \| good	4.49 \| good	0.197 \| good
2025-10-22T08:00:00.000Z	22 \| good	1.615 \| good	10.239 \| good	23.95 \| good	0.407 \| good	4.48 \| good	0.197 \| good
2025-10-22T09:00:00.000Z	23 \| good	1.615 \| good	10.239 \| good	25.269 \| good	0.595 \| good	2.015 \| good	0.167 \| good
2025-10-22T10:00:00.000Z	21 \| good	1.935 \| good	11.303 \| good	23.179 \| good	0.395 \| good	3.726 \| good	0.152 \| good
2025-10-22T11:00:00.000Z	21 \| good	1.935 \| good	11.303 \| good	23.179 \| good	0.395 \| good	3.726 \| good	0.152 \| good
2025-10-22T12:00:00.000Z	22 \| good	4.497 \| good	19.292 \| good	16.898 \| good	0.613 \| good	2.924 \| good	0.126 \| good
2025-10-22T13:00:00.000Z	19 \| good	3.371 \| good	14.787 \| good	20.071 \| good	0.675 \| good	2.865 \| good	0.13 \| good
2025-10-22T14:00:00.000Z	23 \| good	2.802 \| good	11.786 \| good	25.269 \| good	0.736 \| good	2.806 \| good	0.134 \| good
2025-10-22T15:00:00.000Z	23 \| good	1.972 \| good	8.069 \| good	24.513 \| good	0.797 \| good	2.747 \| good	0.138 \| good
2025-10-22T16:00:00.000Z	22 \| good	1.541 \| good	6.043 \| good	24.392 \| good	0.796 \| good	2.314 \| good	0.134 \| good
2025-10-22T17:00:00.000Z	26 \| good	0.687 \| good	2.801 \| good	27.634 \| good	0.796 \| good	1.882 \| good	0.13 \| good
2025-10-22T18:00:00.000Z	27 \| good	0.347 \| good	1.148 \| good	28.996 \| good	0.796 \| good	1.449 \| good	0.125 \| good
2025-10-22T19:00:00.000Z	30 \| good	1.202 \| good	4.781 \| good	31.874 \| good	0.761 \| good	1.391 \| good	0.125 \| good
2025-10-22T20:00:00.000Z	30 \| good	1.937 \| good	8.02 \| good	31.709 \| good	0.726 \| good	1.333 \| good	0.126 \| good
2025-10-22T21:00:00.000Z	26 \| good	1.618 \| good	6.485 \| good	28.122 \| good	0.691 \| good	1.275 \| good	0.126 \| good
2025-10-22T22:00:00.000Z	26 \| good	1.136 \| good	4.436 \| good	27.991 \| good	0.728 \| good	3.211 \| good	0.143 \| good
2025-10-22T23:00:00.000Z	20 \| good	1.099 \| good	4.709 \| good	22.064 \| good	0.765 \| good	5.146 \| good	0.161 \| good
2025-10-23T00:00:00.000Z	19 \| good	0.651 \| good	2.215 \| good	19.742 \| good	0.801 \| good	7.081 \| good	0.179 \| good
2025-10-23T01:00:00.000Z	17 \| good	0.526 \| good	2.08 \| good	18.317 \| good	0.872 \| good	9.265 \| good	0.199 \| good
2025-10-23T02:00:00.000Z	17 \| good	0.367 \| good	1.235 \| good	18.192 \| good	0.943 \| good	11.45 \| good	0.219 \| good
2025-10-23T03:00:00.000Z	17 \| good	2.142 \| good	8.842 \| good	17.55 \| good	1.014 \| good	13.634 \| good	0.238 \| good
2025-10-23T04:00:00.000Z	15 \| good	2.262 \| good	9.569 \| good	16.056 \| good	0.979 \| good	12.696 \| good	0.231 \| good
2025-10-23T05:00:00.000Z	13 \| good	1.522 \| good	5.995 \| good	14.309 \| good	0.944 \| good	11.759 \| good	0.223 \| good
2025-10-23T06:00:00.000Z	11 \| good	2.304 \| good	9.645 \| good	9.895 \| good	0.909 \| good	10.822 \| good	0.215 \| good
2025-10-23T07:00:00.000Z	11 \| good	2.278 \| good	9.674 \| good	7.991 \| good	0.864 \| good	9.26 \| good	0.199 \| good
2025-10-23T08:00:00.000Z	16 \| good	2.882 \| good	11.766 \| good	7.301 \| good	0.819 \| good	7.698 \| good	0.182 \| good
2025-10-23T09:00:00.000Z	11 \| good	1.591 \| good	6.243 \| good	5.348 \| good	0.774 \| good	6.136 \| good	0.165 \| good
2025-10-23T10:00:00.000Z	11 \| good	1.815 \| good	7.51 \| good	1.605 \| good	0.796 \| good	6.69 \| good	0.168 \| good
2025-10-23T11:00:00.000Z	16 \| good	2.899 \| good	11.802 \| good	1.93 \| good	0.819 \| good	7.244 \| good	0.17 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.663 \| good	15.723 \| good	3.106 \| good	0.842 \| good	7.798 \| good	0.173 \| good
2025-10-23T13:00:00.000Z	22 \| good	3.591 \| good	15.56 \| good	5.517 \| good	0.971 \| good	6.87 \| good	0.174 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.507 \| good	19.467 \| good	11.803 \| good	1.1 \| good	5.942 \| good	0.176 \| good
2025-10-23T15:00:00.000Z	17 \| good	2.989 \| good	12.077 \| good	18.044 \| good	1.229 \| good	5.014 \| good	0.178 \| good
2025-10-23T16:00:00.000Z	21 \| good	2.836 \| good	11.849 \| good	23.399 \| good	1.158 \| good	3.92 \| good	0.164 \| good
2025-10-23T17:00:00.000Z	26 \| good	1.59 \| good	6.395 \| good	28.39 \| good	1.086 \| good	2.825 \| good	0.15 \| good
2025-10-23T18:00:00.000Z	30 \| good	1.591 \| good	6.244 \| good	32.127 \| good	1.015 \| good	1.731 \| good	0.136 \| good
2025-10-23T19:00:00.000Z	32 \| good	2.974 \| good	12.239 \| good	35.164 \| good	0.973 \| good	1.67 \| good	0.135 \| good
2025-10-23T20:00:00.000Z	32 \| good	3.308 \| good	14.53 \| good	35.485 \| good	0.931 \| good	1.61 \| good	0.134 \| good
2025-10-23T21:00:00.000Z	32 \| good	1.827 \| good	7.739 \| good	34.528 \| good	0.889 \| good	1.55 \| good	0.132 \| good
2025-10-23T22:00:00.000Z	33 \| good	5.517 \| good	24.014 \| good	32.855 \| good	0.91 \| good	4.838 \| good	0.162 \| good
2025-10-23T23:00:00.000Z	33 \| good	5.643 \| good	24.235 \| good	29.079 \| good	0.931 \| good	8.127 \| good	0.192 \| good
2025-10-24T00:00:00.000Z	38 \| good	6.679 \| good	29.664 \| good	24.301 \| good	0.952 \| good	11.416 \| good	0.221 \| good
2025-10-24T01:00:00.000Z	33 \| good	6.16 \| good	27.184 \| good	20.535 \| good	1.06 \| good	14.976 \| good	0.253 \| good
2025-10-24T02:00:00.000Z	38 \| good	6.679 \| good	29.201 \| good	18.613 \| good	1.168 \| good	18.536 \| good	0.284 \| good
2025-10-24T03:00:00.000Z	44 \| good	8.027 \| good	35.141 \| good	17.23 \| good	1.276 \| good	22.095 \| good	0.316 \| good
2025-10-24T04:00:00.000Z	44 \| good	7.866 \| good	34.534 \| good	16.134 \| good	1.274 \| good	22.504 \| good	0.325 \| good
2025-10-24T05:00:00.000Z	38 \| good	6.712 \| good	29.524 \| good	15.273 \| good	1.271 \| good	22.912 \| good	0.334 \| good
2025-10-24T06:00:00.000Z	64 \| moderate	15.983 \| fine	16.126 \| good	6.598 \| good	1.281 \| good	23.485 \| good	0.345 \| good
2025-10-24T07:00:00.000Z	27 \| good	4.6 \| good	19.928 \| good	13.263 \| good	1.191 \| good	21.265 \| good	0.322 \| good
2025-10-24T08:00:00.000Z	22 \| good	3.678 \| good	15.959 \| good	13.243 \| good	1.112 \| good	19.209 \| good	0.3 \| good
2025-10-24T09:00:00.000Z	22 \| good	3.682 \| good	16.145 \| good	12.856 \| good	1.034 \| good	17.153 \| good	0.279 \| good
2025-10-24T10:00:00.000Z	16 \| good	3.366 \| good	14.821 \| good	11.678 \| good	0.986 \| good	15.649 \| good	0.264 \| good
2025-10-24T11:00:00.000Z	27 \| good	5.311 \| good	23.151 \| good	8.419 \| good	0.937 \| good	14.144 \| good	0.25 \| good

Columbia, Illinois live air quality index now

Major air pollutants in Columbia, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Columbia, Illinois air quality map: Track AQI near you

Air quality in nearby cities

Oakville, Missouri

Lemay, Missouri

Waterloo, Illinois

Mehlville, Missouri

Cahokia Heights, Illinois

Arnold, Missouri

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Frequently asked questions

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What is the current concentration of PM2.5 in Columbia, Illinois?

What is the current concentration of PM10 in Columbia, Illinois?

What is the current concentration of carbon monoxide (CO) in Columbia, Illinois?

What is the current concentration of sulfur dioxide (SO2) in Columbia, Illinois?

What is the current concentration of ozone (O3) in Columbia, Illinois?

What is the current concentration of nitrogen dioxide (NO2) in Columbia, Illinois?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Columbia, Illinois?

What is the current concentration of PM₁₀ in Columbia, Illinois?

What is the current concentration of sulfur dioxide (SO₂) in Columbia, Illinois?

What is the current concentration of ozone (O₃) in Columbia, Illinois?

What is the current concentration of nitrogen dioxide (NO₂) in Columbia, Illinois?