What is the PM10 level in Ottawa, Illinois at the moment?

The PM10 concentration in Ottawa, Illinois is 35.962 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Ottawa, Illinois at the moment?

Currently, Ottawa, Illinois has a sulfur dioxide (SO2) concentration of 0.948 ppb.

What is the ozone (O3) level in Ottawa, Illinois at the moment?

The current ozone (O3) level in Ottawa, Illinois at the moment is 40.449 ppm.

What is the nitrogen dioxide (NO2) level in Ottawa, Illinois at the moment?

Nitrogen dioxide (NO2) level in Ottawa, Illinois at the moment is 14.363 ppb.

Live air quality index in Ottawa, Illinois today

Q: What is the PM2.5 level in Ottawa, Illinois at the moment?

PM2.5 levels in Ottawa, Illinois are currently 8.233 μg/m3.

Stay updated with real-time air quality in Ottawa, 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

Ottawa, Illinois

Last updated: ... (Local time)

Major air pollutants in Ottawa, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.23 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

35.96 μg/m³

155

255

425

605+

Ozone (O₃)

40.45 ppb

201

201+

Sulfur Dioxide (SO₂)

0.95 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.36 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Ottawa, Illinois

Get Live Pollen Counts

Ottawa, Illinois

Scroll To Air Quality Map

Track live Ottawa, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-21T02:00:00.000Z	44 \| good	7.985 \| good	35.201 \| good	25.491 \| good	1.584 \| good	17.942 \| good	0.256 \| good
2026-10-21T03:00:00.000Z	44 \| good	8.041 \| good	35.201 \| good	24.723 \| good	1.759 \| good	19.059 \| good	0.261 \| good
2026-10-21T04:00:00.000Z	44 \| good	7.839 \| good	34.306 \| good	24.203 \| good	1.881 \| good	20.069 \| good	0.267 \| good
2026-10-21T05:00:00.000Z	44 \| good	7.732 \| good	33.829 \| good	23.903 \| good	1.919 \| good	20.327 \| good	0.27 \| good
2026-10-21T06:00:00.000Z	44 \| good	7.974 \| good	35.144 \| good	22.274 \| good	1.877 \| good	19.868 \| good	0.27 \| good
2026-10-21T07:00:00.000Z	44 \| good	7.875 \| good	34.6 \| good	20.921 \| good	1.773 \| good	19.077 \| good	0.268 \| good
2026-10-21T08:00:00.000Z	44 \| good	8.019 \| good	35.228 \| good	19.42 \| good	1.626 \| good	18.246 \| good	0.267 \| good
2026-10-21T09:00:00.000Z	44 \| good	8.18 \| good	35.706 \| good	18.211 \| good	1.463 \| good	17.717 \| good	0.267 \| good
2026-10-21T10:00:00.000Z	49 \| good	8.819 \| good	38.991 \| good	17.685 \| good	1.291 \| good	17.678 \| good	0.271 \| good
2026-10-21T11:00:00.000Z	49 \| good	9.142 \| good	40.469 \| good	17.023 \| good	1.126 \| good	18.005 \| good	0.277 \| good
2026-10-21T12:00:00.000Z	44 \| good	7.874 \| good	34.649 \| good	15.796 \| good	1.105 \| good	17.865 \| good	0.292 \| good
2026-10-21T13:00:00.000Z	49 \| good	8.859 \| good	38.991 \| good	14.538 \| good	1.02 \| good	15.808 \| good	0.314 \| good
2026-10-21T14:00:00.000Z	54 \| moderate	11.167 \| good	49.649 \| good	19.776 \| good	0.806 \| good	10.806 \| good	0.3 \| good
2026-10-21T15:00:00.000Z	54 \| moderate	11.356 \| good	50.219 \| good	28.215 \| good	0.719 \| good	8.309 \| good	0.266 \| good
2026-10-21T16:00:00.000Z	54 \| moderate	11.063 \| good	48.676 \| good	35.534 \| good	0.735 \| good	5.626 \| good	0.214 \| good
2026-10-21T17:00:00.000Z	52 \| moderate	10.185 \| good	45.106 \| good	41.828 \| good	0.865 \| good	3.368 \| good	0.178 \| good
2026-10-21T18:00:00.000Z	52 \| moderate	9.766 \| good	43.277 \| good	46.869 \| good	0.923 \| good	1.742 \| good	0.154 \| good
2026-10-21T19:00:00.000Z	52 \| moderate	9.842 \| good	43.763 \| good	50.843 \| good	0.871 \| good	1.114 \| good	0.145 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	9.864 \| good	43.82 \| good	54.118 \| good	0.832 \| good	0.962 \| good	0.143 \| good
2026-10-21T21:00:00.000Z	50 \| good	9.442 \| good	42.192 \| good	54.285 \| good	0.818 \| good	1.016 \| good	0.143 \| good
2026-10-21T22:00:00.000Z	48 \| good	7.888 \| good	34.543 \| good	52.199 \| good	0.782 \| good	2.397 \| good	0.153 \| good
2026-10-21T23:00:00.000Z	44 \| good	6.495 \| good	29 \| good	46.938 \| good	0.81 \| good	7.383 \| good	0.192 \| good
2026-10-22T00:00:00.000Z	44 \| good	7.912 \| good	34.829 \| good	37.182 \| good	0.936 \| good	11.613 \| good	0.226 \| good
2026-10-22T01:00:00.000Z	44 \| good	8.36 \| good	36.658 \| good	32.124 \| good	1.001 \| good	15.442 \| good	0.259 \| good
2026-10-22T02:00:00.000Z	44 \| good	8.409 \| good	36.877 \| good	30.223 \| good	1.047 \| good	18.529 \| good	0.284 \| good
2026-10-22T03:00:00.000Z	49 \| good	8.942 \| good	39.685 \| good	28.627 \| good	1.069 \| good	20.887 \| good	0.304 \| good
2026-10-22T04:00:00.000Z	49 \| good	8.956 \| good	39.734 \| good	25.96 \| good	1.074 \| good	22.763 \| good	0.319 \| good
2026-10-22T05:00:00.000Z	49 \| good	9.393 \| good	41.79 \| good	24.452 \| good	1.052 \| good	24.088 \| good	0.332 \| good
2026-10-22T06:00:00.000Z	49 \| good	9.472 \| good	42.141 \| good	22.421 \| good	1.012 \| good	24.772 \| good	0.34 \| good
2026-10-22T07:00:00.000Z	49 \| good	9.171 \| good	40.713 \| good	21.218 \| good	0.978 \| good	25.179 \| good	0.345 \| good
2026-10-22T08:00:00.000Z	49 \| good	9.093 \| good	40.256 \| good	19.913 \| good	0.94 \| good	25.356 \| good	0.349 \| good
2026-10-22T09:00:00.000Z	49 \| good	9.181 \| good	41.058 \| good	19.243 \| good	0.9 \| good	25.326 \| good	0.351 \| good
2026-10-22T10:00:00.000Z	49 \| good	9.36 \| good	41.562 \| good	18.406 \| good	0.867 \| good	25.308 \| good	0.355 \| good
2026-10-22T11:00:00.000Z	49 \| good	9.429 \| good	42.106 \| good	18.184 \| good	0.846 \| good	25.422 \| good	0.362 \| good
2026-10-22T12:00:00.000Z	52 \| moderate	10.416 \| good	46.343 \| good	17.892 \| good	1.11 \| good	31.178 \| good	0.434 \| good
2026-10-22T13:00:00.000Z	54 \| moderate	11.355 \| good	50.163 \| good	15.383 \| good	1.165 \| good	26.988 \| good	0.46 \| good
2026-10-22T14:00:00.000Z	58 \| moderate	13.045 \| fine	59 \| fine	19.265 \| good	0.988 \| good	20.131 \| good	0.477 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	11.765 \| good	52 \| good	29.831 \| good	0.945 \| good	13.235 \| good	0.33 \| good
2026-10-22T16:00:00.000Z	52 \| moderate	9.805 \| good	43.219 \| good	39.492 \| good	0.951 \| good	7.091 \| good	0.232 \| good
2026-10-22T17:00:00.000Z	44 \| good	7.828 \| good	34.219 \| good	47.282 \| good	0.907 \| good	3.58 \| good	0.191 \| good
2026-10-22T18:00:00.000Z	47 \| good	6.895 \| good	30.219 \| good	51.38 \| good	0.892 \| good	1.879 \| good	0.172 \| good
2026-10-22T19:00:00.000Z	49 \| good	6.149 \| good	27.219 \| good	53.416 \| good	0.789 \| good	1.202 \| good	0.166 \| good
2026-10-22T20:00:00.000Z	51 \| moderate	5.731 \| good	24.219 \| good	54.813 \| good	0.718 \| good	1.035 \| good	0.164 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	5.536 \| good	23.943 \| good	56.351 \| fine	0.693 \| good	1.106 \| good	0.163 \| good
2026-10-22T22:00:00.000Z	50 \| good	5.684 \| good	24.4 \| good	54.106 \| good	0.669 \| good	2.673 \| good	0.176 \| good
2026-10-22T23:00:00.000Z	45 \| good	7.573 \| good	33.229 \| good	48.801 \| good	0.838 \| good	8.841 \| good	0.223 \| good
2026-10-23T00:00:00.000Z	44 \| good	8.233 \| good	35.962 \| good	40.449 \| good	0.948 \| good	14.363 \| good	0.268 \| good
2026-10-23T01:00:00.000Z	44 \| good	8.233 \| good	35.962 \| good	40.449 \| good	0.948 \| good	14.363 \| good	0.268 \| good
2026-10-23T02:00:00.000Z	38 \| good	7.243 \| good	32.079 \| good	33.24 \| good	0.974 \| good	18.741 \| good	0.302 \| good
2026-10-23T03:00:00.000Z	54 \| moderate	10.514 \| good	46.592 \| good	24.832 \| good	1.063 \| good	17.659 \| good	0.291 \| good
2026-10-23T04:00:00.000Z	64 \| moderate	15.92 \| fine	70.862 \| fine	13.104 \| good	1.202 \| good	17.223 \| good	0.287 \| good
2026-10-23T05:00:00.000Z	71 \| moderate	20.335 \| fine	89.149 \| fine	6.573 \| good	1.367 \| good	16.751 \| good	0.285 \| good
2026-10-23T06:00:00.000Z	75 \| moderate	21.722 \| fine	95.336 \| fine	6.072 \| good	1.542 \| good	15.66 \| good	0.28 \| good
2026-10-23T07:00:00.000Z	73 \| moderate	20.692 \| fine	91.378 \| fine	9.139 \| good	1.686 \| good	14.441 \| good	0.276 \| good
2026-10-23T08:00:00.000Z	69 \| moderate	18.748 \| fine	82.836 \| fine	13.9 \| good	1.763 \| good	13.181 \| good	0.271 \| good
2026-10-23T09:00:00.000Z	66 \| moderate	16.688 \| fine	74.192 \| fine	17.26 \| good	1.755 \| good	11.919 \| good	0.267 \| good
2026-10-23T10:00:00.000Z	64 \| moderate	16.169 \| fine	72.029 \| fine	18.219 \| good	1.647 \| good	10.89 \| good	0.262 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	14.957 \| fine	66.387 \| fine	18.415 \| good	1.476 \| good	10.242 \| good	0.259 \| good
2026-10-23T12:00:00.000Z	60 \| moderate	14.142 \| fine	63.287 \| fine	17.354 \| good	1.293 \| good	10.269 \| good	0.26 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.189 \| fine	64.151 \| fine	17.059 \| good	1.12 \| good	10.17 \| good	0.266 \| good
2026-10-23T14:00:00.000Z	62 \| moderate	15.116 \| fine	67.967 \| fine	23.383 \| good	0.913 \| good	7.712 \| good	0.262 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	14.538 \| fine	65.116 \| fine	31.99 \| good	0.837 \| good	6.075 \| good	0.245 \| good
2026-10-23T16:00:00.000Z	58 \| moderate	13.452 \| fine	60.767 \| fine	40.957 \| good	0.887 \| good	4.222 \| good	0.214 \| good
2026-10-23T17:00:00.000Z	56 \| moderate	12.102 \| fine	54.493 \| good	47.754 \| good	0.928 \| good	2.364 \| good	0.185 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.346 \| good	50.362 \| good	51.482 \| good	1.215 \| good	1.187 \| good	0.173 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.925 \| good	48.175 \| good	54.014 \| good	1.236 \| good	0.895 \| good	0.17 \| good
2026-10-23T20:00:00.000Z	52 \| moderate	10.423 \| good	46.058 \| good	55.123 \| fine	1.145 \| good	0.845 \| good	0.169 \| good
2026-10-23T21:00:00.000Z	52 \| moderate	10.361 \| good	45.775 \| good	54.324 \| good	1.068 \| good	0.934 \| good	0.168 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.949 \| good	48.54 \| good	50.852 \| good	0.971 \| good	1.909 \| good	0.175 \| good
2026-10-23T23:00:00.000Z	56 \| moderate	11.742 \| good	52.088 \| good	45.737 \| good	0.883 \| good	4.461 \| good	0.194 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	11.933 \| good	53.334 \| good	39.146 \| good	0.839 \| good	6.476 \| good	0.21 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	10.575 \| good	46.795 \| good	34.004 \| good	0.827 \| good	7.046 \| good	0.212 \| good
2026-10-24T02:00:00.000Z	52 \| moderate	9.971 \| good	44.32 \| good	33.595 \| good	0.836 \| good	7.354 \| good	0.214 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	10.341 \| good	45.74 \| good	32.721 \| good	0.849 \| good	7.279 \| good	0.215 \| good
2026-10-24T04:00:00.000Z	54 \| moderate	11.378 \| good	50.293 \| good	31.801 \| good	0.847 \| good	6.952 \| good	0.215 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.971 \| fine	58.929 \| fine	31.692 \| good	0.819 \| good	6.377 \| good	0.214 \| good
2026-10-24T06:00:00.000Z	62 \| moderate	14.668 \| fine	65.071 \| fine	30.087 \| good	0.778 \| good	5.824 \| good	0.213 \| good
2026-10-24T07:00:00.000Z	62 \| moderate	15.144 \| fine	67.842 \| fine	26.717 \| good	0.743 \| good	5.528 \| good	0.213 \| good
2026-10-24T08:00:00.000Z	62 \| moderate	15.009 \| fine	67.008 \| fine	23.411 \| good	0.721 \| good	5.502 \| good	0.214 \| good
2026-10-24T09:00:00.000Z	60 \| moderate	14.34 \| fine	64.028 \| fine	21.958 \| good	0.708 \| good	5.722 \| good	0.217 \| good
2026-10-24T10:00:00.000Z	60 \| moderate	13.836 \| fine	62.028 \| fine	21.647 \| good	0.704 \| good	6.036 \| good	0.22 \| good
2026-10-24T11:00:00.000Z	60 \| moderate	13.566 \| fine	61.164 \| fine	20.725 \| good	0.711 \| good	6.334 \| good	0.223 \| good
2026-10-24T12:00:00.000Z	60 \| moderate	13.728 \| fine	61.164 \| fine	20.755 \| good	0.731 \| good	6.773 \| good	0.226 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	13.874 \| fine	62.672 \| fine	20.882 \| good	0.753 \| good	7.007 \| good	0.23 \| good
2026-10-24T14:00:00.000Z	62 \| moderate	14.978 \| fine	66.937 \| fine	26.694 \| good	0.735 \| good	6.42 \| good	0.235 \| good
2026-10-24T15:00:00.000Z	60 \| moderate	14.284 \| fine	63.957 \| fine	34.568 \| good	0.809 \| good	5.199 \| good	0.225 \| good
2026-10-24T16:00:00.000Z	58 \| moderate	12.879 \| fine	57.957 \| fine	41.664 \| good	0.882 \| good	4.094 \| good	0.213 \| good
2026-10-24T17:00:00.000Z	54 \| moderate	11.353 \| good	50.35 \| good	47.242 \| good	0.981 \| good	2.947 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.945 \| good	48.386 \| good	50.476 \| good	1.081 \| good	1.947 \| good	0.185 \| good
2026-10-24T19:00:00.000Z	52 \| moderate	10.345 \| good	45.647 \| good	52.521 \| good	1.13 \| good	1.359 \| good	0.177 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	10.049 \| good	44.812 \| good	54.034 \| good	1.1 \| good	1.177 \| good	0.174 \| good
2026-10-24T21:00:00.000Z	54 \| moderate	10.864 \| good	48.011 \| good	52.587 \| good	1.047 \| good	1.228 \| good	0.172 \| good
2026-10-24T22:00:00.000Z	54 \| moderate	11.302 \| good	50.022 \| good	49.328 \| good	0.958 \| good	2.035 \| good	0.177 \| good
2026-10-24T23:00:00.000Z	56 \| moderate	11.767 \| good	52.047 \| good	45.536 \| good	0.87 \| good	3.926 \| good	0.19 \| good
2026-10-25T00:00:00.000Z	56 \| moderate	12.213 \| fine	54.97 \| good	40.851 \| good	0.808 \| good	5.332 \| good	0.2 \| good
2026-10-25T01:00:00.000Z	56 \| moderate	12.035 \| good	54.013 \| good	38.218 \| good	0.77 \| good	5.632 \| good	0.2 \| good

Ottawa

Get reliable air quality data to drive your business

Ottawa, Illinois air quality map: Stay updated on AQI near you

0.32ppm

How accurate is Illinois, USA air quality data?

Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Ottawa, Illinois?

The air quality information for Ottawa, Illinois is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Ottawa, Illinois at its worst?

In the past 24 hours, the air quality in Ottawa, Illinois was at its worst at 02:00:00 on 2026-10-22.

When did Ottawa, Illinois experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Ottawa, Illinois was observed at 12:00:00 on 2026-10-23.

What is the AQI in Ottawa, Illinois right now?

As of now, the AQI in Ottawa, Illinois is 44, indicating Good conditions.

What is the most common type of pollution in Ottawa, Illinois?

Ottawa, Illinois air has the highest levels of PM2.5.

What should I do in case of poor air quality in Ottawa, Illinois?

Poor air quality in Ottawa, Illinois means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Ottawa, Illinois at the moment?

PM_2.5 levels in Ottawa, Illinois are currently 8.233 μg/m³.

What is the PM₁₀ level in Ottawa, Illinois at the moment?

The PM₁₀ concentration in Ottawa, Illinois is 35.962 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Ottawa, Illinois at the moment?

The current carbon monoxide (CO) concentration in Ottawa, Illinois is 0.268 ppm.

What is the sulfur dioxide (SO₂) level in Ottawa, Illinois at the moment?

Currently, Ottawa, Illinois has a sulfur dioxide (SO₂) concentration of 0.948 ppb.

What is the ozone (O₃) level in Ottawa, Illinois at the moment?

The current ozone (O₃) level in Ottawa, Illinois at the moment is 40.449 ppm.

What is the nitrogen dioxide (NO₂) level in Ottawa, Illinois at the moment?

Nitrogen dioxide (NO₂) level in Ottawa, Illinois at the moment is 14.363 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-21T02:00:00.000Z	44 \| good	7.985 \| good	35.201 \| good	25.491 \| good	1.584 \| good	17.942 \| good	0.256 \| good
2026-10-21T03:00:00.000Z	44 \| good	8.041 \| good	35.201 \| good	24.723 \| good	1.759 \| good	19.059 \| good	0.261 \| good
2026-10-21T04:00:00.000Z	44 \| good	7.839 \| good	34.306 \| good	24.203 \| good	1.881 \| good	20.069 \| good	0.267 \| good
2026-10-21T05:00:00.000Z	44 \| good	7.732 \| good	33.829 \| good	23.903 \| good	1.919 \| good	20.327 \| good	0.27 \| good
2026-10-21T06:00:00.000Z	44 \| good	7.974 \| good	35.144 \| good	22.274 \| good	1.877 \| good	19.868 \| good	0.27 \| good
2026-10-21T07:00:00.000Z	44 \| good	7.875 \| good	34.6 \| good	20.921 \| good	1.773 \| good	19.077 \| good	0.268 \| good
2026-10-21T08:00:00.000Z	44 \| good	8.019 \| good	35.228 \| good	19.42 \| good	1.626 \| good	18.246 \| good	0.267 \| good
2026-10-21T09:00:00.000Z	44 \| good	8.18 \| good	35.706 \| good	18.211 \| good	1.463 \| good	17.717 \| good	0.267 \| good
2026-10-21T10:00:00.000Z	49 \| good	8.819 \| good	38.991 \| good	17.685 \| good	1.291 \| good	17.678 \| good	0.271 \| good
2026-10-21T11:00:00.000Z	49 \| good	9.142 \| good	40.469 \| good	17.023 \| good	1.126 \| good	18.005 \| good	0.277 \| good
2026-10-21T12:00:00.000Z	44 \| good	7.874 \| good	34.649 \| good	15.796 \| good	1.105 \| good	17.865 \| good	0.292 \| good
2026-10-21T13:00:00.000Z	49 \| good	8.859 \| good	38.991 \| good	14.538 \| good	1.02 \| good	15.808 \| good	0.314 \| good
2026-10-21T14:00:00.000Z	54 \| moderate	11.167 \| good	49.649 \| good	19.776 \| good	0.806 \| good	10.806 \| good	0.3 \| good
2026-10-21T15:00:00.000Z	54 \| moderate	11.356 \| good	50.219 \| good	28.215 \| good	0.719 \| good	8.309 \| good	0.266 \| good
2026-10-21T16:00:00.000Z	54 \| moderate	11.063 \| good	48.676 \| good	35.534 \| good	0.735 \| good	5.626 \| good	0.214 \| good
2026-10-21T17:00:00.000Z	52 \| moderate	10.185 \| good	45.106 \| good	41.828 \| good	0.865 \| good	3.368 \| good	0.178 \| good
2026-10-21T18:00:00.000Z	52 \| moderate	9.766 \| good	43.277 \| good	46.869 \| good	0.923 \| good	1.742 \| good	0.154 \| good
2026-10-21T19:00:00.000Z	52 \| moderate	9.842 \| good	43.763 \| good	50.843 \| good	0.871 \| good	1.114 \| good	0.145 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	9.864 \| good	43.82 \| good	54.118 \| good	0.832 \| good	0.962 \| good	0.143 \| good
2026-10-21T21:00:00.000Z	50 \| good	9.442 \| good	42.192 \| good	54.285 \| good	0.818 \| good	1.016 \| good	0.143 \| good
2026-10-21T22:00:00.000Z	48 \| good	7.888 \| good	34.543 \| good	52.199 \| good	0.782 \| good	2.397 \| good	0.153 \| good
2026-10-21T23:00:00.000Z	44 \| good	6.495 \| good	29 \| good	46.938 \| good	0.81 \| good	7.383 \| good	0.192 \| good
2026-10-22T00:00:00.000Z	44 \| good	7.912 \| good	34.829 \| good	37.182 \| good	0.936 \| good	11.613 \| good	0.226 \| good
2026-10-22T01:00:00.000Z	44 \| good	8.36 \| good	36.658 \| good	32.124 \| good	1.001 \| good	15.442 \| good	0.259 \| good
2026-10-22T02:00:00.000Z	44 \| good	8.409 \| good	36.877 \| good	30.223 \| good	1.047 \| good	18.529 \| good	0.284 \| good
2026-10-22T03:00:00.000Z	49 \| good	8.942 \| good	39.685 \| good	28.627 \| good	1.069 \| good	20.887 \| good	0.304 \| good
2026-10-22T04:00:00.000Z	49 \| good	8.956 \| good	39.734 \| good	25.96 \| good	1.074 \| good	22.763 \| good	0.319 \| good
2026-10-22T05:00:00.000Z	49 \| good	9.393 \| good	41.79 \| good	24.452 \| good	1.052 \| good	24.088 \| good	0.332 \| good
2026-10-22T06:00:00.000Z	49 \| good	9.472 \| good	42.141 \| good	22.421 \| good	1.012 \| good	24.772 \| good	0.34 \| good
2026-10-22T07:00:00.000Z	49 \| good	9.171 \| good	40.713 \| good	21.218 \| good	0.978 \| good	25.179 \| good	0.345 \| good
2026-10-22T08:00:00.000Z	49 \| good	9.093 \| good	40.256 \| good	19.913 \| good	0.94 \| good	25.356 \| good	0.349 \| good
2026-10-22T09:00:00.000Z	49 \| good	9.181 \| good	41.058 \| good	19.243 \| good	0.9 \| good	25.326 \| good	0.351 \| good
2026-10-22T10:00:00.000Z	49 \| good	9.36 \| good	41.562 \| good	18.406 \| good	0.867 \| good	25.308 \| good	0.355 \| good
2026-10-22T11:00:00.000Z	49 \| good	9.429 \| good	42.106 \| good	18.184 \| good	0.846 \| good	25.422 \| good	0.362 \| good
2026-10-22T12:00:00.000Z	52 \| moderate	10.416 \| good	46.343 \| good	17.892 \| good	1.11 \| good	31.178 \| good	0.434 \| good
2026-10-22T13:00:00.000Z	54 \| moderate	11.355 \| good	50.163 \| good	15.383 \| good	1.165 \| good	26.988 \| good	0.46 \| good
2026-10-22T14:00:00.000Z	58 \| moderate	13.045 \| fine	59 \| fine	19.265 \| good	0.988 \| good	20.131 \| good	0.477 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	11.765 \| good	52 \| good	29.831 \| good	0.945 \| good	13.235 \| good	0.33 \| good
2026-10-22T16:00:00.000Z	52 \| moderate	9.805 \| good	43.219 \| good	39.492 \| good	0.951 \| good	7.091 \| good	0.232 \| good
2026-10-22T17:00:00.000Z	44 \| good	7.828 \| good	34.219 \| good	47.282 \| good	0.907 \| good	3.58 \| good	0.191 \| good
2026-10-22T18:00:00.000Z	47 \| good	6.895 \| good	30.219 \| good	51.38 \| good	0.892 \| good	1.879 \| good	0.172 \| good
2026-10-22T19:00:00.000Z	49 \| good	6.149 \| good	27.219 \| good	53.416 \| good	0.789 \| good	1.202 \| good	0.166 \| good
2026-10-22T20:00:00.000Z	51 \| moderate	5.731 \| good	24.219 \| good	54.813 \| good	0.718 \| good	1.035 \| good	0.164 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	5.536 \| good	23.943 \| good	56.351 \| fine	0.693 \| good	1.106 \| good	0.163 \| good
2026-10-22T22:00:00.000Z	50 \| good	5.684 \| good	24.4 \| good	54.106 \| good	0.669 \| good	2.673 \| good	0.176 \| good
2026-10-22T23:00:00.000Z	45 \| good	7.573 \| good	33.229 \| good	48.801 \| good	0.838 \| good	8.841 \| good	0.223 \| good
2026-10-23T00:00:00.000Z	44 \| good	8.233 \| good	35.962 \| good	40.449 \| good	0.948 \| good	14.363 \| good	0.268 \| good
2026-10-23T01:00:00.000Z	44 \| good	8.233 \| good	35.962 \| good	40.449 \| good	0.948 \| good	14.363 \| good	0.268 \| good
2026-10-23T02:00:00.000Z	38 \| good	7.243 \| good	32.079 \| good	33.24 \| good	0.974 \| good	18.741 \| good	0.302 \| good
2026-10-23T03:00:00.000Z	54 \| moderate	10.514 \| good	46.592 \| good	24.832 \| good	1.063 \| good	17.659 \| good	0.291 \| good
2026-10-23T04:00:00.000Z	64 \| moderate	15.92 \| fine	70.862 \| fine	13.104 \| good	1.202 \| good	17.223 \| good	0.287 \| good
2026-10-23T05:00:00.000Z	71 \| moderate	20.335 \| fine	89.149 \| fine	6.573 \| good	1.367 \| good	16.751 \| good	0.285 \| good
2026-10-23T06:00:00.000Z	75 \| moderate	21.722 \| fine	95.336 \| fine	6.072 \| good	1.542 \| good	15.66 \| good	0.28 \| good
2026-10-23T07:00:00.000Z	73 \| moderate	20.692 \| fine	91.378 \| fine	9.139 \| good	1.686 \| good	14.441 \| good	0.276 \| good
2026-10-23T08:00:00.000Z	69 \| moderate	18.748 \| fine	82.836 \| fine	13.9 \| good	1.763 \| good	13.181 \| good	0.271 \| good
2026-10-23T09:00:00.000Z	66 \| moderate	16.688 \| fine	74.192 \| fine	17.26 \| good	1.755 \| good	11.919 \| good	0.267 \| good
2026-10-23T10:00:00.000Z	64 \| moderate	16.169 \| fine	72.029 \| fine	18.219 \| good	1.647 \| good	10.89 \| good	0.262 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	14.957 \| fine	66.387 \| fine	18.415 \| good	1.476 \| good	10.242 \| good	0.259 \| good
2026-10-23T12:00:00.000Z	60 \| moderate	14.142 \| fine	63.287 \| fine	17.354 \| good	1.293 \| good	10.269 \| good	0.26 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.189 \| fine	64.151 \| fine	17.059 \| good	1.12 \| good	10.17 \| good	0.266 \| good
2026-10-23T14:00:00.000Z	62 \| moderate	15.116 \| fine	67.967 \| fine	23.383 \| good	0.913 \| good	7.712 \| good	0.262 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	14.538 \| fine	65.116 \| fine	31.99 \| good	0.837 \| good	6.075 \| good	0.245 \| good
2026-10-23T16:00:00.000Z	58 \| moderate	13.452 \| fine	60.767 \| fine	40.957 \| good	0.887 \| good	4.222 \| good	0.214 \| good
2026-10-23T17:00:00.000Z	56 \| moderate	12.102 \| fine	54.493 \| good	47.754 \| good	0.928 \| good	2.364 \| good	0.185 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.346 \| good	50.362 \| good	51.482 \| good	1.215 \| good	1.187 \| good	0.173 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.925 \| good	48.175 \| good	54.014 \| good	1.236 \| good	0.895 \| good	0.17 \| good
2026-10-23T20:00:00.000Z	52 \| moderate	10.423 \| good	46.058 \| good	55.123 \| fine	1.145 \| good	0.845 \| good	0.169 \| good
2026-10-23T21:00:00.000Z	52 \| moderate	10.361 \| good	45.775 \| good	54.324 \| good	1.068 \| good	0.934 \| good	0.168 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.949 \| good	48.54 \| good	50.852 \| good	0.971 \| good	1.909 \| good	0.175 \| good
2026-10-23T23:00:00.000Z	56 \| moderate	11.742 \| good	52.088 \| good	45.737 \| good	0.883 \| good	4.461 \| good	0.194 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	11.933 \| good	53.334 \| good	39.146 \| good	0.839 \| good	6.476 \| good	0.21 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	10.575 \| good	46.795 \| good	34.004 \| good	0.827 \| good	7.046 \| good	0.212 \| good
2026-10-24T02:00:00.000Z	52 \| moderate	9.971 \| good	44.32 \| good	33.595 \| good	0.836 \| good	7.354 \| good	0.214 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	10.341 \| good	45.74 \| good	32.721 \| good	0.849 \| good	7.279 \| good	0.215 \| good
2026-10-24T04:00:00.000Z	54 \| moderate	11.378 \| good	50.293 \| good	31.801 \| good	0.847 \| good	6.952 \| good	0.215 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.971 \| fine	58.929 \| fine	31.692 \| good	0.819 \| good	6.377 \| good	0.214 \| good
2026-10-24T06:00:00.000Z	62 \| moderate	14.668 \| fine	65.071 \| fine	30.087 \| good	0.778 \| good	5.824 \| good	0.213 \| good
2026-10-24T07:00:00.000Z	62 \| moderate	15.144 \| fine	67.842 \| fine	26.717 \| good	0.743 \| good	5.528 \| good	0.213 \| good
2026-10-24T08:00:00.000Z	62 \| moderate	15.009 \| fine	67.008 \| fine	23.411 \| good	0.721 \| good	5.502 \| good	0.214 \| good
2026-10-24T09:00:00.000Z	60 \| moderate	14.34 \| fine	64.028 \| fine	21.958 \| good	0.708 \| good	5.722 \| good	0.217 \| good
2026-10-24T10:00:00.000Z	60 \| moderate	13.836 \| fine	62.028 \| fine	21.647 \| good	0.704 \| good	6.036 \| good	0.22 \| good
2026-10-24T11:00:00.000Z	60 \| moderate	13.566 \| fine	61.164 \| fine	20.725 \| good	0.711 \| good	6.334 \| good	0.223 \| good
2026-10-24T12:00:00.000Z	60 \| moderate	13.728 \| fine	61.164 \| fine	20.755 \| good	0.731 \| good	6.773 \| good	0.226 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	13.874 \| fine	62.672 \| fine	20.882 \| good	0.753 \| good	7.007 \| good	0.23 \| good
2026-10-24T14:00:00.000Z	62 \| moderate	14.978 \| fine	66.937 \| fine	26.694 \| good	0.735 \| good	6.42 \| good	0.235 \| good
2026-10-24T15:00:00.000Z	60 \| moderate	14.284 \| fine	63.957 \| fine	34.568 \| good	0.809 \| good	5.199 \| good	0.225 \| good
2026-10-24T16:00:00.000Z	58 \| moderate	12.879 \| fine	57.957 \| fine	41.664 \| good	0.882 \| good	4.094 \| good	0.213 \| good
2026-10-24T17:00:00.000Z	54 \| moderate	11.353 \| good	50.35 \| good	47.242 \| good	0.981 \| good	2.947 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.945 \| good	48.386 \| good	50.476 \| good	1.081 \| good	1.947 \| good	0.185 \| good
2026-10-24T19:00:00.000Z	52 \| moderate	10.345 \| good	45.647 \| good	52.521 \| good	1.13 \| good	1.359 \| good	0.177 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	10.049 \| good	44.812 \| good	54.034 \| good	1.1 \| good	1.177 \| good	0.174 \| good
2026-10-24T21:00:00.000Z	54 \| moderate	10.864 \| good	48.011 \| good	52.587 \| good	1.047 \| good	1.228 \| good	0.172 \| good
2026-10-24T22:00:00.000Z	54 \| moderate	11.302 \| good	50.022 \| good	49.328 \| good	0.958 \| good	2.035 \| good	0.177 \| good
2026-10-24T23:00:00.000Z	56 \| moderate	11.767 \| good	52.047 \| good	45.536 \| good	0.87 \| good	3.926 \| good	0.19 \| good
2026-10-25T00:00:00.000Z	56 \| moderate	12.213 \| fine	54.97 \| good	40.851 \| good	0.808 \| good	5.332 \| good	0.2 \| good
2026-10-25T01:00:00.000Z	56 \| moderate	12.035 \| good	54.013 \| good	38.218 \| good	0.77 \| good	5.632 \| good	0.2 \| good

Live air quality index in Ottawa, Illinois today

Major air pollutants in Ottawa, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Ottawa, Illinois air quality forecast and history

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Ottawa, Illinois air quality map: Stay updated on AQI near you

Air quality in nearby cities

Streator, Illinois

Morris, Illinois

Plano, Illinois

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Channahon, Illinois

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Frequently asked questions

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What is the carbon monoxide (CO) level in Ottawa, Illinois at the moment?

What is the sulfur dioxide (SO2) level in Ottawa, Illinois at the moment?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Ottawa, Illinois at the moment?

What is the PM₁₀ level in Ottawa, Illinois at the moment?

What is the sulfur dioxide (SO₂) level in Ottawa, Illinois at the moment?

What is the ozone (O₃) level in Ottawa, Illinois at the moment?

What is the nitrogen dioxide (NO₂) level in Ottawa, Illinois at the moment?