What are the current PM10 levels at Cahokia Heights, Illinois?

The current PM10 levels in Cahokia Heights, Illinois are 56.544 μg/m3.

What are the current sulfur dioxide (SO2) levels at Cahokia Heights, Illinois?

The current sulfur dioxide (SO2) levels in Cahokia Heights, Illinois are 3.186 ppb.

What are the current ozone (O3) levels at Cahokia Heights, Illinois?

The current ozone (O3) levels at Cahokia Heights, Illinois is 46.224 ppm.

What are the current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois?

The current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois is 8.96 ppb.

Real-time air quality index in Cahokia Heights, Illinois today

Q: What are the current PM2.5 levels in Cahokia Heights, Illinois?

The measured PM2.5 levels in Cahokia Heights, Illinois at present are 11.952 μg/m3.

Stay updated with real-time air quality in Cahokia Heights, 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)

Moderate

Cahokia Heights, Illinois

Last updated: ... (Local time)

Common air pollutants in Cahokia Heights, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.95 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

56.54 μg/m³

155

255

425

605+

Ozone (O₃)

46.22 ppb

201

201+

Sulfur Dioxide (SO₂)

3.19 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.96 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Cahokia Heights, Illinois

Get Live Pollen Counts

Cahokia Heights, Illinois

Scroll To Air Quality Map

Track live Cahokia Heights, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	43 \| good	5.894 \| good	30.224 \| good	45.829 \| good	1.62 \| good	7.112 \| good	0.199 \| good
2026-10-20T22:00:00.000Z	43 \| good	5.597 \| good	25.337 \| good	45.662 \| good	1.585 \| good	6.895 \| good	0.199 \| good
2026-10-20T23:00:00.000Z	42 \| good	6.169 \| good	26.432 \| good	45.368 \| good	1.552 \| good	7.974 \| good	0.228 \| good
2026-10-21T00:00:00.000Z	38 \| good	7.03 \| good	28.345 \| good	41.484 \| good	1.39 \| good	13.733 \| good	0.426 \| good
2026-10-21T01:00:00.000Z	44 \| good	8.018 \| good	33.606 \| good	28.69 \| good	1.096 \| good	19.283 \| good	0.735 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.679 \| good	40.613 \| good	17.674 \| good	0.89 \| good	27.846 \| good	0.844 \| good
2026-10-21T03:00:00.000Z	64 \| moderate	16.126 \| fine	71.654 \| fine	8.441 \| good	1.247 \| good	23.163 \| good	0.282 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	13.03 \| fine	55.942 \| fine	9.207 \| good	0.736 \| good	29.975 \| good	0.69 \| good
2026-10-21T05:00:00.000Z	60 \| moderate	14.317 \| fine	58.379 \| fine	6.329 \| good	0.728 \| good	28.428 \| good	0.887 \| good
2026-10-21T06:00:00.000Z	62 \| moderate	14.916 \| fine	62.094 \| fine	4.59 \| good	0.825 \| good	27.522 \| good	1.013 \| good
2026-10-21T07:00:00.000Z	60 \| moderate	14.362 \| fine	59.846 \| fine	7.12 \| good	0.825 \| good	27.009 \| good	1.013 \| good
2026-10-21T08:00:00.000Z	60 \| moderate	14.037 \| fine	58.576 \| fine	10.071 \| good	0.825 \| good	26.737 \| good	1.013 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	13.295 \| fine	56.392 \| fine	4.342 \| good	0.79 \| good	21.202 \| good	0.845 \| good
2026-10-21T10:00:00.000Z	58 \| moderate	13.248 \| fine	55.065 \| fine	3.79 \| good	0.745 \| good	20.303 \| good	0.886 \| good
2026-10-21T11:00:00.000Z	62 \| moderate	15.087 \| fine	54.33 \| good	5.911 \| good	0.958 \| good	20.183 \| good	0.816 \| good
2026-10-21T12:00:00.000Z	64 \| moderate	15.907 \| fine	58.122 \| fine	4.974 \| good	1.01 \| good	18.464 \| good	0.916 \| good
2026-10-21T13:00:00.000Z	64 \| moderate	15.907 \| fine	58.122 \| fine	5.225 \| good	1.009 \| good	16.199 \| good	0.916 \| good
2026-10-21T14:00:00.000Z	69 \| moderate	19.391 \| fine	77.261 \| fine	5.185 \| good	1.439 \| good	20.995 \| good	0.979 \| good
2026-10-21T15:00:00.000Z	71 \| moderate	20.436 \| fine	96.463 \| fine	7.214 \| good	1.518 \| good	31.18 \| good	0.79 \| good
2026-10-21T16:00:00.000Z	82 \| moderate	25.904 \| fine	102.856 \| fine	9.288 \| good	1.287 \| good	28.813 \| good	0.635 \| good
2026-10-21T17:00:00.000Z	71 \| moderate	20.311 \| fine	82.642 \| fine	16.603 \| good	1.568 \| good	25.665 \| good	0.467 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	13.432 \| fine	59.401 \| fine	27.939 \| good	1.493 \| good	14.656 \| good	0.299 \| good
2026-10-21T19:00:00.000Z	54 \| moderate	11.25 \| good	50.311 \| good	38.094 \| good	2.128 \| good	11.421 \| good	0.257 \| good
2026-10-21T20:00:00.000Z	49 \| good	9.368 \| good	40.935 \| good	42.527 \| good	1.445 \| good	11.732 \| good	0.229 \| good
2026-10-21T21:00:00.000Z	44 \| good	8.188 \| good	36.984 \| good	48.092 \| good	1.046 \| good	9.542 \| good	0.228 \| good
2026-10-21T22:00:00.000Z	45 \| good	7.465 \| good	35.206 \| good	49.153 \| good	1.013 \| good	9.456 \| good	0.27 \| good
2026-10-21T23:00:00.000Z	43 \| good	7.06 \| good	35.953 \| good	45.698 \| good	0.904 \| good	11.518 \| good	0.27 \| good
2026-10-22T00:00:00.000Z	49 \| good	8.531 \| good	41.161 \| good	40.016 \| good	0.721 \| good	17.634 \| good	0.299 \| good
2026-10-22T01:00:00.000Z	52 \| moderate	9.697 \| good	45.21 \| good	27.046 \| good	0.766 \| good	30.287 \| good	0.735 \| good
2026-10-22T02:00:00.000Z	58 \| moderate	12.791 \| fine	53.632 \| good	19.818 \| good	0.71 \| good	28.741 \| good	0.762 \| good
2026-10-22T03:00:00.000Z	62 \| moderate	14.562 \| fine	65.374 \| fine	13.892 \| good	3.331 \| good	40.886 \| good	0.459 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.504 \| fine	61.306 \| fine	12.086 \| good	0.993 \| good	28.948 \| good	1.097 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	17.795 \| fine	67.536 \| fine	8.775 \| good	0.787 \| good	28.921 \| good	1.015 \| good
2026-10-22T06:00:00.000Z	69 \| moderate	19.073 \| fine	69.965 \| fine	6.903 \| good	0.755 \| good	23.968 \| good	0.963 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	19.073 \| fine	69.965 \| fine	5.598 \| good	0.768 \| good	26.248 \| good	0.963 \| good
2026-10-22T08:00:00.000Z	69 \| moderate	19.046 \| fine	70.291 \| fine	12.662 \| good	0.772 \| good	27.296 \| good	0.957 \| good
2026-10-22T09:00:00.000Z	88 \| moderate	28.849 \| fine	83.53 \| fine	7.751 \| good	0.769 \| good	20.521 \| good	0.969 \| good
2026-10-22T10:00:00.000Z	79 \| moderate	24.072 \| fine	73.497 \| fine	4.99 \| good	0.776 \| good	18.875 \| good	0.87 \| good
2026-10-22T11:00:00.000Z	73 \| moderate	21.366 \| fine	69.925 \| fine	5.216 \| good	0.686 \| good	16.394 \| good	0.875 \| good
2026-10-22T12:00:00.000Z	71 \| moderate	19.928 \| fine	71.83 \| fine	5.638 \| good	0.714 \| good	18.539 \| good	0.902 \| good
2026-10-22T13:00:00.000Z	69 \| moderate	19.491 \| fine	69.489 \| fine	5.646 \| good	0.711 \| good	17.643 \| good	0.899 \| good
2026-10-22T14:00:00.000Z	66 \| moderate	17.367 \| fine	64.437 \| fine	5.423 \| good	0.796 \| good	16.967 \| good	0.852 \| good
2026-10-22T15:00:00.000Z	71 \| moderate	19.55 \| fine	81.655 \| fine	9.977 \| good	1.295 \| good	21.238 \| good	0.838 \| good
2026-10-22T16:00:00.000Z	75 \| moderate	21.64 \| fine	91.015 \| fine	11.814 \| good	1.247 \| good	20.829 \| good	0.831 \| good
2026-10-22T17:00:00.000Z	79 \| moderate	23.656 \| fine	109.23 \| fine	15.335 \| good	6.802 \| good	26.946 \| good	0.635 \| good
2026-10-22T18:00:00.000Z	73 \| moderate	20.691 \| fine	93.124 \| fine	19.613 \| good	7.039 \| good	16.774 \| good	0.605 \| good
2026-10-22T19:00:00.000Z	66 \| moderate	17.266 \| fine	79.542 \| fine	26.123 \| good	7.082 \| good	10.102 \| good	0.549 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.952 \| good	56.544 \| fine	46.224 \| good	3.186 \| good	8.96 \| good	0.199 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.952 \| good	56.544 \| fine	46.224 \| good	3.186 \| good	8.96 \| good	0.199 \| good
2026-10-22T19:00:00.000Z	58 \| moderate	11.989 \| good	53.262 \| good	56.503 \| fine	2.516 \| good	2.92 \| good	0.18 \| good
2026-10-22T20:00:00.000Z	71 \| moderate	11.033 \| good	48.843 \| good	60.664 \| fine	2.307 \| good	2.512 \| good	0.177 \| good
2026-10-22T21:00:00.000Z	74 \| moderate	9.433 \| good	41.677 \| good	62.344 \| fine	2.178 \| good	2.484 \| good	0.176 \| good
2026-10-22T22:00:00.000Z	54 \| moderate	10.286 \| good	45.667 \| good	55.552 \| fine	2.097 \| good	3.041 \| good	0.178 \| good
2026-10-22T23:00:00.000Z	56 \| moderate	11.909 \| good	52.905 \| good	38.94 \| good	1.998 \| good	11.632 \| good	0.24 \| good
2026-10-23T00:00:00.000Z	52 \| moderate	10.394 \| good	46.158 \| good	27.507 \| good	2.105 \| good	21.676 \| good	0.311 \| good
2026-10-23T01:00:00.000Z	56 \| moderate	11.575 \| good	51.484 \| good	15.585 \| good	2.181 \| good	29.539 \| good	0.36 \| good
2026-10-23T02:00:00.000Z	60 \| moderate	13.896 \| fine	62.675 \| fine	13.945 \| good	2.145 \| good	32.46 \| good	0.387 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	14.808 \| fine	66.539 \| fine	10.183 \| good	2.022 \| good	32.475 \| good	0.397 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	13.084 \| fine	58.834 \| fine	9.677 \| good	1.871 \| good	31.274 \| good	0.395 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.449 \| fine	56.306 \| fine	9.983 \| good	1.653 \| good	28.462 \| good	0.383 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	13.431 \| fine	60.539 \| fine	9.541 \| good	1.391 \| good	23.914 \| good	0.354 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	13.621 \| fine	60.916 \| fine	10.583 \| good	1.184 \| good	19.655 \| good	0.32 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.871 \| fine	62.295 \| fine	9.638 \| good	1.03 \| good	15.818 \| good	0.29 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	14.175 \| fine	63.181 \| fine	9.122 \| good	0.944 \| good	12.711 \| good	0.269 \| good
2026-10-23T10:00:00.000Z	60 \| moderate	14.255 \| fine	63.369 \| fine	10.584 \| good	0.913 \| good	11.224 \| good	0.258 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	15.202 \| fine	67.423 \| fine	7.199 \| good	0.921 \| good	10.988 \| good	0.256 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	15.383 \| fine	68.886 \| fine	5.373 \| good	0.975 \| good	12.49 \| good	0.264 \| good
2026-10-23T13:00:00.000Z	66 \| moderate	17.078 \| fine	75.477 \| fine	11.23 \| good	1.064 \| good	14.138 \| good	0.287 \| good
2026-10-23T14:00:00.000Z	71 \| moderate	19.928 \| fine	87.498 \| fine	19.068 \| good	1.065 \| good	10.81 \| good	0.289 \| good
2026-10-23T15:00:00.000Z	66 \| moderate	17.36 \| fine	77.187 \| fine	26.826 \| good	1.211 \| good	7.784 \| good	0.258 \| good
2026-10-23T16:00:00.000Z	60 \| moderate	13.876 \| fine	62.743 \| fine	35.924 \| good	1.445 \| good	5.292 \| good	0.229 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	10.016 \| good	44.709 \| good	43.754 \| good	1.73 \| good	3.307 \| good	0.204 \| good
2026-10-23T18:00:00.000Z	52 \| moderate	10.034 \| good	44.824 \| good	48.076 \| good	1.7 \| good	1.798 \| good	0.183 \| good
2026-10-23T19:00:00.000Z	52 \| moderate	10.351 \| good	45.862 \| good	50.053 \| good	1.558 \| good	1.361 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	52 \| moderate	9.895 \| good	43.969 \| good	52.667 \| good	1.482 \| good	1.282 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	51 \| moderate	8.57 \| good	37.327 \| good	55.099 \| fine	1.444 \| good	1.415 \| good	0.176 \| good
2026-10-23T22:00:00.000Z	52 \| moderate	10.102 \| good	44.93 \| good	50.804 \| good	1.401 \| good	2.092 \| good	0.181 \| good
2026-10-23T23:00:00.000Z	58 \| moderate	12.798 \| fine	57.481 \| fine	33.455 \| good	1.31 \| good	5.334 \| good	0.204 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	11.668 \| good	51.639 \| good	22.594 \| good	1.264 \| good	8.262 \| good	0.225 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	11.316 \| good	49.981 \| good	17.38 \| good	1.231 \| good	8.456 \| good	0.224 \| good
2026-10-24T02:00:00.000Z	58 \| moderate	12.725 \| fine	56.95 \| fine	18.179 \| good	1.208 \| good	8.106 \| good	0.221 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	14.892 \| fine	66.542 \| fine	18.102 \| good	1.194 \| good	7.514 \| good	0.218 \| good
2026-10-24T04:00:00.000Z	62 \| moderate	15.045 \| fine	66.884 \| fine	18.666 \| good	1.187 \| good	6.989 \| good	0.216 \| good
2026-10-24T05:00:00.000Z	60 \| moderate	14.476 \| fine	64.686 \| fine	18.452 \| good	1.164 \| good	6.318 \| good	0.215 \| good
2026-10-24T06:00:00.000Z	62 \| moderate	14.512 \| fine	64.782 \| fine	15.048 \| good	1.131 \| good	5.683 \| good	0.214 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.29 \| fine	55 \| fine	12.062 \| good	1.101 \| good	5.425 \| good	0.214 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.969 \| good	53.746 \| good	10.862 \| good	1.069 \| good	5.439 \| good	0.215 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.631 \| good	51.207 \| good	10.275 \| good	1.038 \| good	5.702 \| good	0.217 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.373 \| good	50.329 \| good	9.129 \| good	1.017 \| good	6.081 \| good	0.22 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	11.618 \| good	51.383 \| good	8.173 \| good	1.009 \| good	6.639 \| good	0.223 \| good
2026-10-24T12:00:00.000Z	49 \| good	8.875 \| good	39.27 \| good	7.514 \| good	1.029 \| good	8.078 \| good	0.231 \| good
2026-10-24T13:00:00.000Z	52 \| moderate	9.744 \| good	43.08 \| good	9.33 \| good	1.067 \| good	9.698 \| good	0.246 \| good
2026-10-24T14:00:00.000Z	58 \| moderate	13.363 \| fine	60.45 \| fine	17.079 \| good	1.048 \| good	7.999 \| good	0.254 \| good
2026-10-24T15:00:00.000Z	56 \| moderate	12.056 \| good	53.969 \| good	23.945 \| good	1.142 \| good	5.71 \| good	0.233 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.74 \| good	43.263 \| good	33.84 \| good	1.247 \| good	4.16 \| good	0.216 \| good
2026-10-24T17:00:00.000Z	38 \| good	5.52 \| good	23.415 \| good	40.751 \| good	1.343 \| good	2.834 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	41 \| good	5.407 \| good	23.188 \| good	44.483 \| good	1.344 \| good	1.857 \| good	0.182 \| good

Cahokia Heights

Empower business decisions with accurate air quality data

Cahokia Heights, Illinois air quality map: Real-time AQI near you

0.31ppm

How accurate is Illinois, USA air quality data?

Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Cahokia Heights, Illinois updated?

Air quality data for Cahokia Heights, Illinois is updated on an hourly basis.

When did Cahokia Heights, Illinois experience the worst air quality in the last 24 hours?

The worst air quality in Cahokia Heights, Illinois was recorded at 09:00:00 on 2026-10-22.

When did Cahokia Heights, Illinois have its best air quality in the last 24 hours?

The best air quality in Cahokia Heights, Illinois was recorded at 11:00:00 on 2026-10-21.

What is the real-time air quality index for Cahokia Heights, Illinois?

The real-time air quality index in Cahokia Heights, Illinois is 56, currently categorized as Moderate.

Which pollutant is found most often in Cahokia Heights, Illinois?

The most common pollutant in Cahokia Heights, Illinois is PM2.5.

What can I do if the air quality in Cahokia Heights, Illinois is poor?

If the air quality in Cahokia Heights, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Cahokia Heights, Illinois?

The measured PM_2.5 levels in Cahokia Heights, Illinois at present are 11.952 μg/m³.

What are the current PM₁₀ levels at Cahokia Heights, Illinois?

The current PM₁₀ levels in Cahokia Heights, Illinois are 56.544 μg/m³.

What are the current carbon monoxide (CO) levels at Cahokia Heights, Illinois?

The current carbon monoxide (CO) level in Cahokia Heights, Illinois is 0.199 ppm.

What are the current sulfur dioxide (SO₂) levels at Cahokia Heights, Illinois?

The current sulfur dioxide (SO₂) levels in Cahokia Heights, Illinois are 3.186 ppb.

What are the current ozone (O₃) levels at Cahokia Heights, Illinois?

The current ozone (O₃) levels at Cahokia Heights, Illinois is 46.224 ppm.

What are the current nitrogen dioxide (NO₂) levels at Cahokia Heights, Illinois?

The current nitrogen dioxide (NO₂) levels at Cahokia Heights, Illinois is 8.96 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	43 \| good	5.894 \| good	30.224 \| good	45.829 \| good	1.62 \| good	7.112 \| good	0.199 \| good
2026-10-20T22:00:00.000Z	43 \| good	5.597 \| good	25.337 \| good	45.662 \| good	1.585 \| good	6.895 \| good	0.199 \| good
2026-10-20T23:00:00.000Z	42 \| good	6.169 \| good	26.432 \| good	45.368 \| good	1.552 \| good	7.974 \| good	0.228 \| good
2026-10-21T00:00:00.000Z	38 \| good	7.03 \| good	28.345 \| good	41.484 \| good	1.39 \| good	13.733 \| good	0.426 \| good
2026-10-21T01:00:00.000Z	44 \| good	8.018 \| good	33.606 \| good	28.69 \| good	1.096 \| good	19.283 \| good	0.735 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.679 \| good	40.613 \| good	17.674 \| good	0.89 \| good	27.846 \| good	0.844 \| good
2026-10-21T03:00:00.000Z	64 \| moderate	16.126 \| fine	71.654 \| fine	8.441 \| good	1.247 \| good	23.163 \| good	0.282 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	13.03 \| fine	55.942 \| fine	9.207 \| good	0.736 \| good	29.975 \| good	0.69 \| good
2026-10-21T05:00:00.000Z	60 \| moderate	14.317 \| fine	58.379 \| fine	6.329 \| good	0.728 \| good	28.428 \| good	0.887 \| good
2026-10-21T06:00:00.000Z	62 \| moderate	14.916 \| fine	62.094 \| fine	4.59 \| good	0.825 \| good	27.522 \| good	1.013 \| good
2026-10-21T07:00:00.000Z	60 \| moderate	14.362 \| fine	59.846 \| fine	7.12 \| good	0.825 \| good	27.009 \| good	1.013 \| good
2026-10-21T08:00:00.000Z	60 \| moderate	14.037 \| fine	58.576 \| fine	10.071 \| good	0.825 \| good	26.737 \| good	1.013 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	13.295 \| fine	56.392 \| fine	4.342 \| good	0.79 \| good	21.202 \| good	0.845 \| good
2026-10-21T10:00:00.000Z	58 \| moderate	13.248 \| fine	55.065 \| fine	3.79 \| good	0.745 \| good	20.303 \| good	0.886 \| good
2026-10-21T11:00:00.000Z	62 \| moderate	15.087 \| fine	54.33 \| good	5.911 \| good	0.958 \| good	20.183 \| good	0.816 \| good
2026-10-21T12:00:00.000Z	64 \| moderate	15.907 \| fine	58.122 \| fine	4.974 \| good	1.01 \| good	18.464 \| good	0.916 \| good
2026-10-21T13:00:00.000Z	64 \| moderate	15.907 \| fine	58.122 \| fine	5.225 \| good	1.009 \| good	16.199 \| good	0.916 \| good
2026-10-21T14:00:00.000Z	69 \| moderate	19.391 \| fine	77.261 \| fine	5.185 \| good	1.439 \| good	20.995 \| good	0.979 \| good
2026-10-21T15:00:00.000Z	71 \| moderate	20.436 \| fine	96.463 \| fine	7.214 \| good	1.518 \| good	31.18 \| good	0.79 \| good
2026-10-21T16:00:00.000Z	82 \| moderate	25.904 \| fine	102.856 \| fine	9.288 \| good	1.287 \| good	28.813 \| good	0.635 \| good
2026-10-21T17:00:00.000Z	71 \| moderate	20.311 \| fine	82.642 \| fine	16.603 \| good	1.568 \| good	25.665 \| good	0.467 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	13.432 \| fine	59.401 \| fine	27.939 \| good	1.493 \| good	14.656 \| good	0.299 \| good
2026-10-21T19:00:00.000Z	54 \| moderate	11.25 \| good	50.311 \| good	38.094 \| good	2.128 \| good	11.421 \| good	0.257 \| good
2026-10-21T20:00:00.000Z	49 \| good	9.368 \| good	40.935 \| good	42.527 \| good	1.445 \| good	11.732 \| good	0.229 \| good
2026-10-21T21:00:00.000Z	44 \| good	8.188 \| good	36.984 \| good	48.092 \| good	1.046 \| good	9.542 \| good	0.228 \| good
2026-10-21T22:00:00.000Z	45 \| good	7.465 \| good	35.206 \| good	49.153 \| good	1.013 \| good	9.456 \| good	0.27 \| good
2026-10-21T23:00:00.000Z	43 \| good	7.06 \| good	35.953 \| good	45.698 \| good	0.904 \| good	11.518 \| good	0.27 \| good
2026-10-22T00:00:00.000Z	49 \| good	8.531 \| good	41.161 \| good	40.016 \| good	0.721 \| good	17.634 \| good	0.299 \| good
2026-10-22T01:00:00.000Z	52 \| moderate	9.697 \| good	45.21 \| good	27.046 \| good	0.766 \| good	30.287 \| good	0.735 \| good
2026-10-22T02:00:00.000Z	58 \| moderate	12.791 \| fine	53.632 \| good	19.818 \| good	0.71 \| good	28.741 \| good	0.762 \| good
2026-10-22T03:00:00.000Z	62 \| moderate	14.562 \| fine	65.374 \| fine	13.892 \| good	3.331 \| good	40.886 \| good	0.459 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.504 \| fine	61.306 \| fine	12.086 \| good	0.993 \| good	28.948 \| good	1.097 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	17.795 \| fine	67.536 \| fine	8.775 \| good	0.787 \| good	28.921 \| good	1.015 \| good
2026-10-22T06:00:00.000Z	69 \| moderate	19.073 \| fine	69.965 \| fine	6.903 \| good	0.755 \| good	23.968 \| good	0.963 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	19.073 \| fine	69.965 \| fine	5.598 \| good	0.768 \| good	26.248 \| good	0.963 \| good
2026-10-22T08:00:00.000Z	69 \| moderate	19.046 \| fine	70.291 \| fine	12.662 \| good	0.772 \| good	27.296 \| good	0.957 \| good
2026-10-22T09:00:00.000Z	88 \| moderate	28.849 \| fine	83.53 \| fine	7.751 \| good	0.769 \| good	20.521 \| good	0.969 \| good
2026-10-22T10:00:00.000Z	79 \| moderate	24.072 \| fine	73.497 \| fine	4.99 \| good	0.776 \| good	18.875 \| good	0.87 \| good
2026-10-22T11:00:00.000Z	73 \| moderate	21.366 \| fine	69.925 \| fine	5.216 \| good	0.686 \| good	16.394 \| good	0.875 \| good
2026-10-22T12:00:00.000Z	71 \| moderate	19.928 \| fine	71.83 \| fine	5.638 \| good	0.714 \| good	18.539 \| good	0.902 \| good
2026-10-22T13:00:00.000Z	69 \| moderate	19.491 \| fine	69.489 \| fine	5.646 \| good	0.711 \| good	17.643 \| good	0.899 \| good
2026-10-22T14:00:00.000Z	66 \| moderate	17.367 \| fine	64.437 \| fine	5.423 \| good	0.796 \| good	16.967 \| good	0.852 \| good
2026-10-22T15:00:00.000Z	71 \| moderate	19.55 \| fine	81.655 \| fine	9.977 \| good	1.295 \| good	21.238 \| good	0.838 \| good
2026-10-22T16:00:00.000Z	75 \| moderate	21.64 \| fine	91.015 \| fine	11.814 \| good	1.247 \| good	20.829 \| good	0.831 \| good
2026-10-22T17:00:00.000Z	79 \| moderate	23.656 \| fine	109.23 \| fine	15.335 \| good	6.802 \| good	26.946 \| good	0.635 \| good
2026-10-22T18:00:00.000Z	73 \| moderate	20.691 \| fine	93.124 \| fine	19.613 \| good	7.039 \| good	16.774 \| good	0.605 \| good
2026-10-22T19:00:00.000Z	66 \| moderate	17.266 \| fine	79.542 \| fine	26.123 \| good	7.082 \| good	10.102 \| good	0.549 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.952 \| good	56.544 \| fine	46.224 \| good	3.186 \| good	8.96 \| good	0.199 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.952 \| good	56.544 \| fine	46.224 \| good	3.186 \| good	8.96 \| good	0.199 \| good
2026-10-22T19:00:00.000Z	58 \| moderate	11.989 \| good	53.262 \| good	56.503 \| fine	2.516 \| good	2.92 \| good	0.18 \| good
2026-10-22T20:00:00.000Z	71 \| moderate	11.033 \| good	48.843 \| good	60.664 \| fine	2.307 \| good	2.512 \| good	0.177 \| good
2026-10-22T21:00:00.000Z	74 \| moderate	9.433 \| good	41.677 \| good	62.344 \| fine	2.178 \| good	2.484 \| good	0.176 \| good
2026-10-22T22:00:00.000Z	54 \| moderate	10.286 \| good	45.667 \| good	55.552 \| fine	2.097 \| good	3.041 \| good	0.178 \| good
2026-10-22T23:00:00.000Z	56 \| moderate	11.909 \| good	52.905 \| good	38.94 \| good	1.998 \| good	11.632 \| good	0.24 \| good
2026-10-23T00:00:00.000Z	52 \| moderate	10.394 \| good	46.158 \| good	27.507 \| good	2.105 \| good	21.676 \| good	0.311 \| good
2026-10-23T01:00:00.000Z	56 \| moderate	11.575 \| good	51.484 \| good	15.585 \| good	2.181 \| good	29.539 \| good	0.36 \| good
2026-10-23T02:00:00.000Z	60 \| moderate	13.896 \| fine	62.675 \| fine	13.945 \| good	2.145 \| good	32.46 \| good	0.387 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	14.808 \| fine	66.539 \| fine	10.183 \| good	2.022 \| good	32.475 \| good	0.397 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	13.084 \| fine	58.834 \| fine	9.677 \| good	1.871 \| good	31.274 \| good	0.395 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.449 \| fine	56.306 \| fine	9.983 \| good	1.653 \| good	28.462 \| good	0.383 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	13.431 \| fine	60.539 \| fine	9.541 \| good	1.391 \| good	23.914 \| good	0.354 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	13.621 \| fine	60.916 \| fine	10.583 \| good	1.184 \| good	19.655 \| good	0.32 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.871 \| fine	62.295 \| fine	9.638 \| good	1.03 \| good	15.818 \| good	0.29 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	14.175 \| fine	63.181 \| fine	9.122 \| good	0.944 \| good	12.711 \| good	0.269 \| good
2026-10-23T10:00:00.000Z	60 \| moderate	14.255 \| fine	63.369 \| fine	10.584 \| good	0.913 \| good	11.224 \| good	0.258 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	15.202 \| fine	67.423 \| fine	7.199 \| good	0.921 \| good	10.988 \| good	0.256 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	15.383 \| fine	68.886 \| fine	5.373 \| good	0.975 \| good	12.49 \| good	0.264 \| good
2026-10-23T13:00:00.000Z	66 \| moderate	17.078 \| fine	75.477 \| fine	11.23 \| good	1.064 \| good	14.138 \| good	0.287 \| good
2026-10-23T14:00:00.000Z	71 \| moderate	19.928 \| fine	87.498 \| fine	19.068 \| good	1.065 \| good	10.81 \| good	0.289 \| good
2026-10-23T15:00:00.000Z	66 \| moderate	17.36 \| fine	77.187 \| fine	26.826 \| good	1.211 \| good	7.784 \| good	0.258 \| good
2026-10-23T16:00:00.000Z	60 \| moderate	13.876 \| fine	62.743 \| fine	35.924 \| good	1.445 \| good	5.292 \| good	0.229 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	10.016 \| good	44.709 \| good	43.754 \| good	1.73 \| good	3.307 \| good	0.204 \| good
2026-10-23T18:00:00.000Z	52 \| moderate	10.034 \| good	44.824 \| good	48.076 \| good	1.7 \| good	1.798 \| good	0.183 \| good
2026-10-23T19:00:00.000Z	52 \| moderate	10.351 \| good	45.862 \| good	50.053 \| good	1.558 \| good	1.361 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	52 \| moderate	9.895 \| good	43.969 \| good	52.667 \| good	1.482 \| good	1.282 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	51 \| moderate	8.57 \| good	37.327 \| good	55.099 \| fine	1.444 \| good	1.415 \| good	0.176 \| good
2026-10-23T22:00:00.000Z	52 \| moderate	10.102 \| good	44.93 \| good	50.804 \| good	1.401 \| good	2.092 \| good	0.181 \| good
2026-10-23T23:00:00.000Z	58 \| moderate	12.798 \| fine	57.481 \| fine	33.455 \| good	1.31 \| good	5.334 \| good	0.204 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	11.668 \| good	51.639 \| good	22.594 \| good	1.264 \| good	8.262 \| good	0.225 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	11.316 \| good	49.981 \| good	17.38 \| good	1.231 \| good	8.456 \| good	0.224 \| good
2026-10-24T02:00:00.000Z	58 \| moderate	12.725 \| fine	56.95 \| fine	18.179 \| good	1.208 \| good	8.106 \| good	0.221 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	14.892 \| fine	66.542 \| fine	18.102 \| good	1.194 \| good	7.514 \| good	0.218 \| good
2026-10-24T04:00:00.000Z	62 \| moderate	15.045 \| fine	66.884 \| fine	18.666 \| good	1.187 \| good	6.989 \| good	0.216 \| good
2026-10-24T05:00:00.000Z	60 \| moderate	14.476 \| fine	64.686 \| fine	18.452 \| good	1.164 \| good	6.318 \| good	0.215 \| good
2026-10-24T06:00:00.000Z	62 \| moderate	14.512 \| fine	64.782 \| fine	15.048 \| good	1.131 \| good	5.683 \| good	0.214 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.29 \| fine	55 \| fine	12.062 \| good	1.101 \| good	5.425 \| good	0.214 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.969 \| good	53.746 \| good	10.862 \| good	1.069 \| good	5.439 \| good	0.215 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.631 \| good	51.207 \| good	10.275 \| good	1.038 \| good	5.702 \| good	0.217 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.373 \| good	50.329 \| good	9.129 \| good	1.017 \| good	6.081 \| good	0.22 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	11.618 \| good	51.383 \| good	8.173 \| good	1.009 \| good	6.639 \| good	0.223 \| good
2026-10-24T12:00:00.000Z	49 \| good	8.875 \| good	39.27 \| good	7.514 \| good	1.029 \| good	8.078 \| good	0.231 \| good
2026-10-24T13:00:00.000Z	52 \| moderate	9.744 \| good	43.08 \| good	9.33 \| good	1.067 \| good	9.698 \| good	0.246 \| good
2026-10-24T14:00:00.000Z	58 \| moderate	13.363 \| fine	60.45 \| fine	17.079 \| good	1.048 \| good	7.999 \| good	0.254 \| good
2026-10-24T15:00:00.000Z	56 \| moderate	12.056 \| good	53.969 \| good	23.945 \| good	1.142 \| good	5.71 \| good	0.233 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.74 \| good	43.263 \| good	33.84 \| good	1.247 \| good	4.16 \| good	0.216 \| good
2026-10-24T17:00:00.000Z	38 \| good	5.52 \| good	23.415 \| good	40.751 \| good	1.343 \| good	2.834 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	41 \| good	5.407 \| good	23.188 \| good	44.483 \| good	1.344 \| good	1.857 \| good	0.182 \| good

Real-time air quality index in Cahokia Heights, Illinois today

Common air pollutants in Cahokia Heights, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Cahokia Heights, Illinois air quality forecast and history

Empower business decisions with accurate air quality data

Cahokia Heights, Illinois air quality map: Real-time AQI near you

Air quality in nearby cities

St. Louis, Missouri

East St. Louis, Illinois

Lemay, Missouri

Affton, Missouri

Mehlville, Missouri

Clayton, Missouri

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Cahokia Heights, Illinois updated?

When did Cahokia Heights, Illinois experience the worst air quality in the last 24 hours?

When did Cahokia Heights, Illinois have its best air quality in the last 24 hours?

What is the real-time air quality index for Cahokia Heights, Illinois?

Which pollutant is found most often in Cahokia Heights, Illinois?

What can I do if the air quality in Cahokia Heights, Illinois is poor?

What are the current PM2.5 levels in Cahokia Heights, Illinois?

What are the current PM10 levels at Cahokia Heights, Illinois?

What are the current carbon monoxide (CO) levels at Cahokia Heights, Illinois?

What are the current sulfur dioxide (SO2) levels at Cahokia Heights, Illinois?

What are the current ozone (O3) levels at Cahokia Heights, Illinois?

What are the current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Cahokia Heights, Illinois?

What are the current PM₁₀ levels at Cahokia Heights, Illinois?

What are the current sulfur dioxide (SO₂) levels at Cahokia Heights, Illinois?

What are the current ozone (O₃) levels at Cahokia Heights, Illinois?

What are the current nitrogen dioxide (NO₂) levels at Cahokia Heights, Illinois?