What are the current PM10 levels at Centralia, Illinois?

The current PM10 levels in Centralia, Illinois are 62.113 μg/m3.

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

The current sulfur dioxide (SO2) levels in Centralia, Illinois are 0.878 ppb.

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

The current ozone (O3) levels at Centralia, Illinois is 17.008 ppm.

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

The current nitrogen dioxide (NO2) levels at Centralia, Illinois is 6.453 ppb.

Real-time air quality index in Centralia, Illinois today

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

The measured PM2.5 levels in Centralia, Illinois at present are 14.376 μg/m3.

Stay updated with real-time air quality in Centralia, 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

Centralia, Illinois

Last updated: ... (Local time)

Common air pollutants in Centralia, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.38 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

62.11 μg/m³

155

255

425

605+

Ozone (O₃)

17.01 ppb

201

201+

Sulfur Dioxide (SO₂)

0.88 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.45 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Centralia, Illinois

Get Live Pollen Counts

Centralia, Illinois

Scroll To Air Quality Map

Track live Centralia, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T06:00:00.000Z	38 \| good	7.324 \| good	30.358 \| good	14.306 \| good	0.719 \| good	10.646 \| good	0.233 \| good
2025-12-05T07:00:00.000Z	49 \| good	8.564 \| good	38.456 \| good	12.972 \| good	0.719 \| good	12.152 \| good	0.24 \| good
2025-12-05T08:00:00.000Z	49 \| good	8.827 \| good	36.473 \| good	12.501 \| good	0.736 \| good	11.883 \| good	0.239 \| good
2025-12-05T09:00:00.000Z	49 \| good	8.6 \| good	30.129 \| good	8.936 \| good	0.706 \| good	11.743 \| good	0.253 \| good
2025-12-05T10:00:00.000Z	44 \| good	7.774 \| good	33.127 \| good	7.512 \| good	0.811 \| good	10.518 \| good	0.251 \| good
2025-12-05T11:00:00.000Z	44 \| good	7.708 \| good	28.406 \| good	8.677 \| good	0.791 \| good	9.564 \| good	0.254 \| good
2025-12-05T12:00:00.000Z	49 \| good	9.443 \| good	43.056 \| good	7.052 \| good	0.736 \| good	13.418 \| good	0.286 \| good
2025-12-05T13:00:00.000Z	52 \| moderate	9.761 \| good	42.637 \| good	8.061 \| good	0.775 \| good	12.237 \| good	0.295 \| good
2025-12-05T14:00:00.000Z	52 \| moderate	10.152 \| good	40.077 \| good	11.201 \| good	0.872 \| good	10.54 \| good	0.339 \| good
2025-12-05T15:00:00.000Z	52 \| moderate	9.977 \| good	39.255 \| good	15.596 \| good	0.896 \| good	7.013 \| good	0.3 \| good
2025-12-05T16:00:00.000Z	52 \| moderate	9.689 \| good	40.335 \| good	20.214 \| good	1.037 \| good	5.717 \| good	0.268 \| good
2025-12-05T17:00:00.000Z	52 \| moderate	10.279 \| good	46.452 \| good	21.664 \| good	1.565 \| good	4.726 \| good	0.256 \| good
2025-12-05T18:00:00.000Z	52 \| moderate	9.868 \| good	38.111 \| good	25.273 \| good	2.545 \| good	4.022 \| good	0.224 \| good
2025-12-05T19:00:00.000Z	52 \| moderate	9.685 \| good	34.663 \| good	26.685 \| good	1.691 \| good	4.033 \| good	0.209 \| good
2025-12-05T20:00:00.000Z	44 \| good	8.006 \| good	34.333 \| good	27.411 \| good	1.772 \| good	3.34 \| good	0.213 \| good
2025-12-05T21:00:00.000Z	49 \| good	8.542 \| good	35.199 \| good	27.626 \| good	1.805 \| good	3.375 \| good	0.201 \| good
2025-12-05T22:00:00.000Z	44 \| good	8.346 \| good	35.458 \| good	27.481 \| good	1.301 \| good	3.726 \| good	0.212 \| good
2025-12-05T23:00:00.000Z	49 \| good	9.02 \| good	38.958 \| good	25.931 \| good	1.012 \| good	4.911 \| good	0.23 \| good
2025-12-06T00:00:00.000Z	49 \| good	8.626 \| good	36.705 \| good	24.318 \| good	1.343 \| good	6.55 \| good	0.255 \| good
2025-12-06T01:00:00.000Z	49 \| good	9.229 \| good	41.728 \| good	23.046 \| good	1.283 \| good	6.863 \| good	0.242 \| good
2025-12-06T02:00:00.000Z	49 \| good	9.077 \| good	34.13 \| good	22.485 \| good	1.071 \| good	7.085 \| good	0.24 \| good
2025-12-06T03:00:00.000Z	44 \| good	8.472 \| good	37.756 \| good	21.842 \| good	1.051 \| good	6.167 \| good	0.217 \| good
2025-12-06T04:00:00.000Z	44 \| good	7.75 \| good	29.425 \| good	20.585 \| good	0.889 \| good	5.853 \| good	0.216 \| good
2025-12-06T05:00:00.000Z	38 \| good	6.892 \| good	28.691 \| good	19.989 \| good	0.759 \| good	5.92 \| good	0.227 \| good
2025-12-06T06:00:00.000Z	33 \| good	6.446 \| good	23.095 \| good	18.849 \| good	0.701 \| good	5.686 \| good	0.204 \| good
2025-12-06T07:00:00.000Z	38 \| good	6.82 \| good	25.117 \| good	17.903 \| good	0.647 \| good	6.063 \| good	0.192 \| good
2025-12-06T08:00:00.000Z	44 \| good	7.597 \| good	24.256 \| good	16.691 \| good	0.606 \| good	6.295 \| good	0.192 \| good
2025-12-06T09:00:00.000Z	44 \| good	8.279 \| good	33.863 \| good	14.403 \| good	0.549 \| good	4.963 \| good	0.191 \| good
2025-12-06T10:00:00.000Z	49 \| good	9.494 \| good	43.328 \| good	12.878 \| good	0.538 \| good	5.461 \| good	0.194 \| good
2025-12-06T11:00:00.000Z	52 \| moderate	9.948 \| good	39.193 \| good	12.157 \| good	0.547 \| good	5.504 \| good	0.207 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	13.287 \| fine	51.379 \| good	9.849 \| good	0.568 \| good	5.805 \| good	0.198 \| good
2025-12-06T13:00:00.000Z	60 \| moderate	14.336 \| fine	55.991 \| fine	10.67 \| good	0.564 \| good	6.047 \| good	0.216 \| good
2025-12-06T14:00:00.000Z	54 \| moderate	10.529 \| good	45.78 \| good	16.513 \| good	0.608 \| good	5.866 \| good	0.24 \| good
2025-12-06T15:00:00.000Z	38 \| good	7.488 \| good	30.7 \| good	19.989 \| good	0.613 \| good	5.149 \| good	0.23 \| good
2025-12-06T16:00:00.000Z	44 \| good	7.557 \| good	30.144 \| good	22.451 \| good	0.639 \| good	4.339 \| good	0.226 \| good
2025-12-06T17:00:00.000Z	49 \| good	8.895 \| good	33.472 \| good	23.825 \| good	0.692 \| good	3.621 \| good	0.223 \| good
2025-12-06T18:00:00.000Z	49 \| good	8.908 \| good	35.072 \| good	25.457 \| good	0.868 \| good	3.32 \| good	0.217 \| good
2025-12-06T19:00:00.000Z	49 \| good	8.567 \| good	31.864 \| good	25.691 \| good	1.581 \| good	2.795 \| good	0.219 \| good
2025-12-06T20:00:00.000Z	44 \| good	8.039 \| good	39.596 \| good	27.628 \| good	1.115 \| good	2.832 \| good	0.205 \| good
2025-12-06T21:00:00.000Z	54 \| moderate	11.074 \| good	39.901 \| good	27.355 \| good	0.912 \| good	3.499 \| good	0.194 \| good
2025-12-06T22:00:00.000Z	54 \| moderate	10.663 \| good	45.278 \| good	25.847 \| good	0.765 \| good	4.78 \| good	0.232 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	9.857 \| good	42.728 \| good	22.589 \| good	0.601 \| good	7.124 \| good	0.254 \| good
2025-12-07T00:00:00.000Z	56 \| moderate	11.71 \| good	54.614 \| good	19.952 \| good	0.775 \| good	6.848 \| good	0.257 \| good
2025-12-07T01:00:00.000Z	56 \| moderate	11.702 \| good	52.268 \| good	19.823 \| good	0.911 \| good	7.069 \| good	0.234 \| good
2025-12-07T02:00:00.000Z	56 \| moderate	12.227 \| fine	47.444 \| good	20.014 \| good	0.996 \| good	6.291 \| good	0.245 \| good
2025-12-07T03:00:00.000Z	56 \| moderate	12.312 \| fine	53.296 \| good	19.361 \| good	1.049 \| good	6.187 \| good	0.221 \| good
2025-12-07T04:00:00.000Z	60 \| moderate	13.6 \| fine	54.567 \| good	19.086 \| good	0.967 \| good	5.565 \| good	0.219 \| good
2025-12-07T05:00:00.000Z	60 \| moderate	14.376 \| fine	62.113 \| fine	17.008 \| good	0.878 \| good	6.453 \| good	0.236 \| good
2025-12-07T05:00:00.000Z	60 \| moderate	14.376 \| fine	62.113 \| fine	17.008 \| good	0.878 \| good	6.453 \| good	0.236 \| good
2025-12-07T06:00:00.000Z	64 \| moderate	15.505 \| fine	68.894 \| fine	15.823 \| good	0.772 \| good	4.405 \| good	0.208 \| good
2025-12-07T07:00:00.000Z	64 \| moderate	16.139 \| fine	71.868 \| fine	14.382 \| good	0.695 \| good	4.291 \| good	0.207 \| good
2025-12-07T08:00:00.000Z	64 \| moderate	16.03 \| fine	71.21 \| fine	13.057 \| good	0.618 \| good	4.178 \| good	0.207 \| good
2025-12-07T09:00:00.000Z	62 \| moderate	14.91 \| fine	66.391 \| fine	13.461 \| good	0.541 \| good	4.065 \| good	0.206 \| good
2025-12-07T10:00:00.000Z	60 \| moderate	14.034 \| fine	63.159 \| fine	14.195 \| good	0.524 \| good	4.274 \| good	0.208 \| good
2025-12-07T11:00:00.000Z	60 \| moderate	14.128 \| fine	63.289 \| fine	12.421 \| good	0.507 \| good	4.484 \| good	0.21 \| good
2025-12-07T12:00:00.000Z	58 \| moderate	13.28 \| fine	60.213 \| fine	12.611 \| good	0.49 \| good	4.694 \| good	0.212 \| good
2025-12-07T13:00:00.000Z	60 \| moderate	13.95 \| fine	62.941 \| fine	15.148 \| good	0.497 \| good	5.263 \| good	0.23 \| good
2025-12-07T14:00:00.000Z	60 \| moderate	14.29 \| fine	63.656 \| fine	18.123 \| good	0.503 \| good	5.833 \| good	0.247 \| good
2025-12-07T15:00:00.000Z	62 \| moderate	15.495 \| fine	69.391 \| fine	21.098 \| good	0.51 \| good	6.402 \| good	0.265 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	15.537 \| fine	69.391 \| fine	22.988 \| good	0.577 \| good	5.772 \| good	0.254 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.365 \| fine	72.616 \| fine	23.986 \| good	0.645 \| good	5.142 \| good	0.243 \| good
2025-12-07T18:00:00.000Z	66 \| moderate	16.928 \| fine	75.083 \| fine	25.136 \| good	0.712 \| good	4.512 \| good	0.232 \| good
2025-12-07T19:00:00.000Z	66 \| moderate	16.564 \| fine	73 \| fine	24.248 \| good	0.738 \| good	5.521 \| good	0.238 \| good
2025-12-07T20:00:00.000Z	64 \| moderate	15.705 \| fine	69.852 \| fine	22.525 \| good	0.764 \| good	6.53 \| good	0.243 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	14.805 \| fine	66.493 \| fine	21.601 \| good	0.79 \| good	7.539 \| good	0.249 \| good
2025-12-07T22:00:00.000Z	66 \| moderate	17.251 \| fine	76.364 \| fine	19.714 \| good	0.913 \| good	8.104 \| good	0.247 \| good
2025-12-07T23:00:00.000Z	67 \| moderate	17.52 \| fine	77.384 \| fine	16.769 \| good	1.036 \| good	8.669 \| good	0.246 \| good
2025-12-08T00:00:00.000Z	60 \| moderate	13.745 \| fine	61.649 \| fine	14.751 \| good	1.16 \| good	9.234 \| good	0.244 \| good
2025-12-08T01:00:00.000Z	56 \| moderate	11.783 \| good	52.028 \| good	17.213 \| good	1.038 \| good	7.999 \| good	0.234 \| good
2025-12-08T02:00:00.000Z	54 \| moderate	10.856 \| good	48.101 \| good	17.165 \| good	0.917 \| good	6.764 \| good	0.223 \| good
2025-12-08T03:00:00.000Z	49 \| good	8.783 \| good	38.574 \| good	19.12 \| good	0.795 \| good	5.529 \| good	0.213 \| good
2025-12-08T04:00:00.000Z	33 \| good	6.015 \| good	26.315 \| good	20.965 \| good	0.745 \| good	4.977 \| good	0.209 \| good
2025-12-08T05:00:00.000Z	22 \| good	4.213 \| good	18.149 \| good	21.787 \| good	0.695 \| good	4.424 \| good	0.205 \| good
2025-12-08T06:00:00.000Z	22 \| good	3.726 \| good	16.307 \| good	21.566 \| good	0.645 \| good	3.871 \| good	0.201 \| good
2025-12-08T07:00:00.000Z	20 \| good	2.805 \| good	11.62 \| good	21.766 \| good	0.659 \| good	3.715 \| good	0.198 \| good
2025-12-08T08:00:00.000Z	20 \| good	2.174 \| good	9.033 \| good	22.108 \| good	0.673 \| good	3.558 \| good	0.195 \| good
2025-12-08T09:00:00.000Z	20 \| good	3.194 \| good	14.007 \| good	21.602 \| good	0.687 \| good	3.402 \| good	0.192 \| good
2025-12-08T10:00:00.000Z	22 \| good	4.275 \| good	18.86 \| good	20.212 \| good	0.691 \| good	3.39 \| good	0.191 \| good
2025-12-08T11:00:00.000Z	22 \| good	3.933 \| good	17.193 \| good	20.454 \| good	0.695 \| good	3.379 \| good	0.189 \| good
2025-12-08T12:00:00.000Z	22 \| good	4.495 \| good	19.706 \| good	21.094 \| good	0.699 \| good	3.367 \| good	0.187 \| good
2025-12-08T13:00:00.000Z	27 \| good	4.971 \| good	21.474 \| good	20.745 \| good	0.71 \| good	3.493 \| good	0.188 \| good
2025-12-08T14:00:00.000Z	33 \| good	5.504 \| good	23.474 \| good	20.878 \| good	0.722 \| good	3.619 \| good	0.188 \| good
2025-12-08T15:00:00.000Z	33 \| good	6.218 \| good	27.585 \| good	20.813 \| good	0.734 \| good	3.745 \| good	0.188 \| good
2025-12-08T16:00:00.000Z	38 \| good	6.618 \| good	29.445 \| good	21.775 \| good	0.781 \| good	3.221 \| good	0.181 \| good
2025-12-08T17:00:00.000Z	44 \| good	7.644 \| good	33.556 \| good	22.522 \| good	0.829 \| good	2.697 \| good	0.175 \| good
2025-12-08T18:00:00.000Z	38 \| good	7.465 \| good	32.916 \| good	24.362 \| good	0.876 \| good	2.172 \| good	0.168 \| good
2025-12-08T19:00:00.000Z	38 \| good	6.766 \| good	30.103 \| good	25.375 \| good	0.841 \| good	2.33 \| good	0.169 \| good
2025-12-08T20:00:00.000Z	33 \| good	6.021 \| good	26.88 \| good	27.248 \| good	0.806 \| good	2.487 \| good	0.169 \| good
2025-12-08T21:00:00.000Z	27 \| good	5.171 \| good	22.364 \| good	28.126 \| good	0.771 \| good	2.644 \| good	0.17 \| good
2025-12-08T22:00:00.000Z	25 \| good	3.833 \| good	16.582 \| good	27.25 \| good	0.812 \| good	6.303 \| good	0.209 \| good
2025-12-08T23:00:00.000Z	22 \| good	3.15 \| good	13.157 \| good	24.483 \| good	0.854 \| good	9.962 \| good	0.249 \| good
2025-12-09T00:00:00.000Z	27 \| good	4.75 \| good	20.54 \| good	22.014 \| good	0.896 \| good	13.621 \| good	0.288 \| good
2025-12-09T01:00:00.000Z	27 \| good	4.827 \| good	20.897 \| good	19.354 \| good	0.871 \| good	11.287 \| good	0.266 \| good
2025-12-09T02:00:00.000Z	22 \| good	4.08 \| good	17.855 \| good	17.793 \| good	0.847 \| good	8.954 \| good	0.243 \| good
2025-12-09T03:00:00.000Z	22 \| good	3.969 \| good	17.155 \| good	16.698 \| good	0.823 \| good	6.621 \| good	0.221 \| good
2025-12-09T04:00:00.000Z	22 \| good	3.805 \| good	16.597 \| good	17.292 \| good	1.018 \| good	5.77 \| good	0.213 \| good
2025-12-09T05:00:00.000Z	27 \| good	5.057 \| good	21.772 \| good	18.05 \| good	1.212 \| good	4.919 \| good	0.205 \| good

Centralia

Empower business decisions with accurate air quality data

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

0.23ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

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

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

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

The worst air quality in Centralia, Illinois was recorded at 04:00:00 on 2025-12-07.

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

The best air quality in Centralia, Illinois was recorded at 06:00:00 on 2025-12-06.

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

The real-time air quality index in Centralia, Illinois is 60, currently categorized as Moderate.

Which pollutant is found most often in Centralia, Illinois?

The most common pollutant in Centralia, Illinois is PM2.5.

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

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

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

The measured PM_2.5 levels in Centralia, Illinois at present are 14.376 μg/m³.

What are the current PM₁₀ levels at Centralia, Illinois?

The current PM₁₀ levels in Centralia, Illinois are 62.113 μg/m³.

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

The current carbon monoxide (CO) level in Centralia, Illinois is 0.236 ppm.

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

The current sulfur dioxide (SO₂) levels in Centralia, Illinois are 0.878 ppb.

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

The current ozone (O₃) levels at Centralia, Illinois is 17.008 ppm.

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

The current nitrogen dioxide (NO₂) levels at Centralia, Illinois is 6.453 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T06:00:00.000Z	38 \| good	7.324 \| good	30.358 \| good	14.306 \| good	0.719 \| good	10.646 \| good	0.233 \| good
2025-12-05T07:00:00.000Z	49 \| good	8.564 \| good	38.456 \| good	12.972 \| good	0.719 \| good	12.152 \| good	0.24 \| good
2025-12-05T08:00:00.000Z	49 \| good	8.827 \| good	36.473 \| good	12.501 \| good	0.736 \| good	11.883 \| good	0.239 \| good
2025-12-05T09:00:00.000Z	49 \| good	8.6 \| good	30.129 \| good	8.936 \| good	0.706 \| good	11.743 \| good	0.253 \| good
2025-12-05T10:00:00.000Z	44 \| good	7.774 \| good	33.127 \| good	7.512 \| good	0.811 \| good	10.518 \| good	0.251 \| good
2025-12-05T11:00:00.000Z	44 \| good	7.708 \| good	28.406 \| good	8.677 \| good	0.791 \| good	9.564 \| good	0.254 \| good
2025-12-05T12:00:00.000Z	49 \| good	9.443 \| good	43.056 \| good	7.052 \| good	0.736 \| good	13.418 \| good	0.286 \| good
2025-12-05T13:00:00.000Z	52 \| moderate	9.761 \| good	42.637 \| good	8.061 \| good	0.775 \| good	12.237 \| good	0.295 \| good
2025-12-05T14:00:00.000Z	52 \| moderate	10.152 \| good	40.077 \| good	11.201 \| good	0.872 \| good	10.54 \| good	0.339 \| good
2025-12-05T15:00:00.000Z	52 \| moderate	9.977 \| good	39.255 \| good	15.596 \| good	0.896 \| good	7.013 \| good	0.3 \| good
2025-12-05T16:00:00.000Z	52 \| moderate	9.689 \| good	40.335 \| good	20.214 \| good	1.037 \| good	5.717 \| good	0.268 \| good
2025-12-05T17:00:00.000Z	52 \| moderate	10.279 \| good	46.452 \| good	21.664 \| good	1.565 \| good	4.726 \| good	0.256 \| good
2025-12-05T18:00:00.000Z	52 \| moderate	9.868 \| good	38.111 \| good	25.273 \| good	2.545 \| good	4.022 \| good	0.224 \| good
2025-12-05T19:00:00.000Z	52 \| moderate	9.685 \| good	34.663 \| good	26.685 \| good	1.691 \| good	4.033 \| good	0.209 \| good
2025-12-05T20:00:00.000Z	44 \| good	8.006 \| good	34.333 \| good	27.411 \| good	1.772 \| good	3.34 \| good	0.213 \| good
2025-12-05T21:00:00.000Z	49 \| good	8.542 \| good	35.199 \| good	27.626 \| good	1.805 \| good	3.375 \| good	0.201 \| good
2025-12-05T22:00:00.000Z	44 \| good	8.346 \| good	35.458 \| good	27.481 \| good	1.301 \| good	3.726 \| good	0.212 \| good
2025-12-05T23:00:00.000Z	49 \| good	9.02 \| good	38.958 \| good	25.931 \| good	1.012 \| good	4.911 \| good	0.23 \| good
2025-12-06T00:00:00.000Z	49 \| good	8.626 \| good	36.705 \| good	24.318 \| good	1.343 \| good	6.55 \| good	0.255 \| good
2025-12-06T01:00:00.000Z	49 \| good	9.229 \| good	41.728 \| good	23.046 \| good	1.283 \| good	6.863 \| good	0.242 \| good
2025-12-06T02:00:00.000Z	49 \| good	9.077 \| good	34.13 \| good	22.485 \| good	1.071 \| good	7.085 \| good	0.24 \| good
2025-12-06T03:00:00.000Z	44 \| good	8.472 \| good	37.756 \| good	21.842 \| good	1.051 \| good	6.167 \| good	0.217 \| good
2025-12-06T04:00:00.000Z	44 \| good	7.75 \| good	29.425 \| good	20.585 \| good	0.889 \| good	5.853 \| good	0.216 \| good
2025-12-06T05:00:00.000Z	38 \| good	6.892 \| good	28.691 \| good	19.989 \| good	0.759 \| good	5.92 \| good	0.227 \| good
2025-12-06T06:00:00.000Z	33 \| good	6.446 \| good	23.095 \| good	18.849 \| good	0.701 \| good	5.686 \| good	0.204 \| good
2025-12-06T07:00:00.000Z	38 \| good	6.82 \| good	25.117 \| good	17.903 \| good	0.647 \| good	6.063 \| good	0.192 \| good
2025-12-06T08:00:00.000Z	44 \| good	7.597 \| good	24.256 \| good	16.691 \| good	0.606 \| good	6.295 \| good	0.192 \| good
2025-12-06T09:00:00.000Z	44 \| good	8.279 \| good	33.863 \| good	14.403 \| good	0.549 \| good	4.963 \| good	0.191 \| good
2025-12-06T10:00:00.000Z	49 \| good	9.494 \| good	43.328 \| good	12.878 \| good	0.538 \| good	5.461 \| good	0.194 \| good
2025-12-06T11:00:00.000Z	52 \| moderate	9.948 \| good	39.193 \| good	12.157 \| good	0.547 \| good	5.504 \| good	0.207 \| good
2025-12-06T12:00:00.000Z	58 \| moderate	13.287 \| fine	51.379 \| good	9.849 \| good	0.568 \| good	5.805 \| good	0.198 \| good
2025-12-06T13:00:00.000Z	60 \| moderate	14.336 \| fine	55.991 \| fine	10.67 \| good	0.564 \| good	6.047 \| good	0.216 \| good
2025-12-06T14:00:00.000Z	54 \| moderate	10.529 \| good	45.78 \| good	16.513 \| good	0.608 \| good	5.866 \| good	0.24 \| good
2025-12-06T15:00:00.000Z	38 \| good	7.488 \| good	30.7 \| good	19.989 \| good	0.613 \| good	5.149 \| good	0.23 \| good
2025-12-06T16:00:00.000Z	44 \| good	7.557 \| good	30.144 \| good	22.451 \| good	0.639 \| good	4.339 \| good	0.226 \| good
2025-12-06T17:00:00.000Z	49 \| good	8.895 \| good	33.472 \| good	23.825 \| good	0.692 \| good	3.621 \| good	0.223 \| good
2025-12-06T18:00:00.000Z	49 \| good	8.908 \| good	35.072 \| good	25.457 \| good	0.868 \| good	3.32 \| good	0.217 \| good
2025-12-06T19:00:00.000Z	49 \| good	8.567 \| good	31.864 \| good	25.691 \| good	1.581 \| good	2.795 \| good	0.219 \| good
2025-12-06T20:00:00.000Z	44 \| good	8.039 \| good	39.596 \| good	27.628 \| good	1.115 \| good	2.832 \| good	0.205 \| good
2025-12-06T21:00:00.000Z	54 \| moderate	11.074 \| good	39.901 \| good	27.355 \| good	0.912 \| good	3.499 \| good	0.194 \| good
2025-12-06T22:00:00.000Z	54 \| moderate	10.663 \| good	45.278 \| good	25.847 \| good	0.765 \| good	4.78 \| good	0.232 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	9.857 \| good	42.728 \| good	22.589 \| good	0.601 \| good	7.124 \| good	0.254 \| good
2025-12-07T00:00:00.000Z	56 \| moderate	11.71 \| good	54.614 \| good	19.952 \| good	0.775 \| good	6.848 \| good	0.257 \| good
2025-12-07T01:00:00.000Z	56 \| moderate	11.702 \| good	52.268 \| good	19.823 \| good	0.911 \| good	7.069 \| good	0.234 \| good
2025-12-07T02:00:00.000Z	56 \| moderate	12.227 \| fine	47.444 \| good	20.014 \| good	0.996 \| good	6.291 \| good	0.245 \| good
2025-12-07T03:00:00.000Z	56 \| moderate	12.312 \| fine	53.296 \| good	19.361 \| good	1.049 \| good	6.187 \| good	0.221 \| good
2025-12-07T04:00:00.000Z	60 \| moderate	13.6 \| fine	54.567 \| good	19.086 \| good	0.967 \| good	5.565 \| good	0.219 \| good
2025-12-07T05:00:00.000Z	60 \| moderate	14.376 \| fine	62.113 \| fine	17.008 \| good	0.878 \| good	6.453 \| good	0.236 \| good
2025-12-07T05:00:00.000Z	60 \| moderate	14.376 \| fine	62.113 \| fine	17.008 \| good	0.878 \| good	6.453 \| good	0.236 \| good
2025-12-07T06:00:00.000Z	64 \| moderate	15.505 \| fine	68.894 \| fine	15.823 \| good	0.772 \| good	4.405 \| good	0.208 \| good
2025-12-07T07:00:00.000Z	64 \| moderate	16.139 \| fine	71.868 \| fine	14.382 \| good	0.695 \| good	4.291 \| good	0.207 \| good
2025-12-07T08:00:00.000Z	64 \| moderate	16.03 \| fine	71.21 \| fine	13.057 \| good	0.618 \| good	4.178 \| good	0.207 \| good
2025-12-07T09:00:00.000Z	62 \| moderate	14.91 \| fine	66.391 \| fine	13.461 \| good	0.541 \| good	4.065 \| good	0.206 \| good
2025-12-07T10:00:00.000Z	60 \| moderate	14.034 \| fine	63.159 \| fine	14.195 \| good	0.524 \| good	4.274 \| good	0.208 \| good
2025-12-07T11:00:00.000Z	60 \| moderate	14.128 \| fine	63.289 \| fine	12.421 \| good	0.507 \| good	4.484 \| good	0.21 \| good
2025-12-07T12:00:00.000Z	58 \| moderate	13.28 \| fine	60.213 \| fine	12.611 \| good	0.49 \| good	4.694 \| good	0.212 \| good
2025-12-07T13:00:00.000Z	60 \| moderate	13.95 \| fine	62.941 \| fine	15.148 \| good	0.497 \| good	5.263 \| good	0.23 \| good
2025-12-07T14:00:00.000Z	60 \| moderate	14.29 \| fine	63.656 \| fine	18.123 \| good	0.503 \| good	5.833 \| good	0.247 \| good
2025-12-07T15:00:00.000Z	62 \| moderate	15.495 \| fine	69.391 \| fine	21.098 \| good	0.51 \| good	6.402 \| good	0.265 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	15.537 \| fine	69.391 \| fine	22.988 \| good	0.577 \| good	5.772 \| good	0.254 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.365 \| fine	72.616 \| fine	23.986 \| good	0.645 \| good	5.142 \| good	0.243 \| good
2025-12-07T18:00:00.000Z	66 \| moderate	16.928 \| fine	75.083 \| fine	25.136 \| good	0.712 \| good	4.512 \| good	0.232 \| good
2025-12-07T19:00:00.000Z	66 \| moderate	16.564 \| fine	73 \| fine	24.248 \| good	0.738 \| good	5.521 \| good	0.238 \| good
2025-12-07T20:00:00.000Z	64 \| moderate	15.705 \| fine	69.852 \| fine	22.525 \| good	0.764 \| good	6.53 \| good	0.243 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	14.805 \| fine	66.493 \| fine	21.601 \| good	0.79 \| good	7.539 \| good	0.249 \| good
2025-12-07T22:00:00.000Z	66 \| moderate	17.251 \| fine	76.364 \| fine	19.714 \| good	0.913 \| good	8.104 \| good	0.247 \| good
2025-12-07T23:00:00.000Z	67 \| moderate	17.52 \| fine	77.384 \| fine	16.769 \| good	1.036 \| good	8.669 \| good	0.246 \| good
2025-12-08T00:00:00.000Z	60 \| moderate	13.745 \| fine	61.649 \| fine	14.751 \| good	1.16 \| good	9.234 \| good	0.244 \| good
2025-12-08T01:00:00.000Z	56 \| moderate	11.783 \| good	52.028 \| good	17.213 \| good	1.038 \| good	7.999 \| good	0.234 \| good
2025-12-08T02:00:00.000Z	54 \| moderate	10.856 \| good	48.101 \| good	17.165 \| good	0.917 \| good	6.764 \| good	0.223 \| good
2025-12-08T03:00:00.000Z	49 \| good	8.783 \| good	38.574 \| good	19.12 \| good	0.795 \| good	5.529 \| good	0.213 \| good
2025-12-08T04:00:00.000Z	33 \| good	6.015 \| good	26.315 \| good	20.965 \| good	0.745 \| good	4.977 \| good	0.209 \| good
2025-12-08T05:00:00.000Z	22 \| good	4.213 \| good	18.149 \| good	21.787 \| good	0.695 \| good	4.424 \| good	0.205 \| good
2025-12-08T06:00:00.000Z	22 \| good	3.726 \| good	16.307 \| good	21.566 \| good	0.645 \| good	3.871 \| good	0.201 \| good
2025-12-08T07:00:00.000Z	20 \| good	2.805 \| good	11.62 \| good	21.766 \| good	0.659 \| good	3.715 \| good	0.198 \| good
2025-12-08T08:00:00.000Z	20 \| good	2.174 \| good	9.033 \| good	22.108 \| good	0.673 \| good	3.558 \| good	0.195 \| good
2025-12-08T09:00:00.000Z	20 \| good	3.194 \| good	14.007 \| good	21.602 \| good	0.687 \| good	3.402 \| good	0.192 \| good
2025-12-08T10:00:00.000Z	22 \| good	4.275 \| good	18.86 \| good	20.212 \| good	0.691 \| good	3.39 \| good	0.191 \| good
2025-12-08T11:00:00.000Z	22 \| good	3.933 \| good	17.193 \| good	20.454 \| good	0.695 \| good	3.379 \| good	0.189 \| good
2025-12-08T12:00:00.000Z	22 \| good	4.495 \| good	19.706 \| good	21.094 \| good	0.699 \| good	3.367 \| good	0.187 \| good
2025-12-08T13:00:00.000Z	27 \| good	4.971 \| good	21.474 \| good	20.745 \| good	0.71 \| good	3.493 \| good	0.188 \| good
2025-12-08T14:00:00.000Z	33 \| good	5.504 \| good	23.474 \| good	20.878 \| good	0.722 \| good	3.619 \| good	0.188 \| good
2025-12-08T15:00:00.000Z	33 \| good	6.218 \| good	27.585 \| good	20.813 \| good	0.734 \| good	3.745 \| good	0.188 \| good
2025-12-08T16:00:00.000Z	38 \| good	6.618 \| good	29.445 \| good	21.775 \| good	0.781 \| good	3.221 \| good	0.181 \| good
2025-12-08T17:00:00.000Z	44 \| good	7.644 \| good	33.556 \| good	22.522 \| good	0.829 \| good	2.697 \| good	0.175 \| good
2025-12-08T18:00:00.000Z	38 \| good	7.465 \| good	32.916 \| good	24.362 \| good	0.876 \| good	2.172 \| good	0.168 \| good
2025-12-08T19:00:00.000Z	38 \| good	6.766 \| good	30.103 \| good	25.375 \| good	0.841 \| good	2.33 \| good	0.169 \| good
2025-12-08T20:00:00.000Z	33 \| good	6.021 \| good	26.88 \| good	27.248 \| good	0.806 \| good	2.487 \| good	0.169 \| good
2025-12-08T21:00:00.000Z	27 \| good	5.171 \| good	22.364 \| good	28.126 \| good	0.771 \| good	2.644 \| good	0.17 \| good
2025-12-08T22:00:00.000Z	25 \| good	3.833 \| good	16.582 \| good	27.25 \| good	0.812 \| good	6.303 \| good	0.209 \| good
2025-12-08T23:00:00.000Z	22 \| good	3.15 \| good	13.157 \| good	24.483 \| good	0.854 \| good	9.962 \| good	0.249 \| good
2025-12-09T00:00:00.000Z	27 \| good	4.75 \| good	20.54 \| good	22.014 \| good	0.896 \| good	13.621 \| good	0.288 \| good
2025-12-09T01:00:00.000Z	27 \| good	4.827 \| good	20.897 \| good	19.354 \| good	0.871 \| good	11.287 \| good	0.266 \| good
2025-12-09T02:00:00.000Z	22 \| good	4.08 \| good	17.855 \| good	17.793 \| good	0.847 \| good	8.954 \| good	0.243 \| good
2025-12-09T03:00:00.000Z	22 \| good	3.969 \| good	17.155 \| good	16.698 \| good	0.823 \| good	6.621 \| good	0.221 \| good
2025-12-09T04:00:00.000Z	22 \| good	3.805 \| good	16.597 \| good	17.292 \| good	1.018 \| good	5.77 \| good	0.213 \| good
2025-12-09T05:00:00.000Z	27 \| good	5.057 \| good	21.772 \| good	18.05 \| good	1.212 \| good	4.919 \| good	0.205 \| good

Real-time air quality index in Centralia, Illinois today

Common air pollutants in Centralia, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Centralia, Illinois air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Mount Vernon, Illinois

Shiloh, Illinois

O'Fallon, Illinois

Troy, Illinois

Belleville, Illinois

Swansea, Illinois

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Centralia, Illinois?

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

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

What are the current PM10 levels at Centralia, Illinois?

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

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

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

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

What are the current PM₁₀ levels at Centralia, Illinois?

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

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

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