What are the current PM10 levels at Clayton, Missouri?

The current PM10 levels in Clayton, Missouri are 9.5 μg/m3.

What are the current sulfur dioxide (SO2) levels at Clayton, Missouri?

The current sulfur dioxide (SO2) levels in Clayton, Missouri are 0.387 ppb.

What are the current ozone (O3) levels at Clayton, Missouri?

The current ozone (O3) levels at Clayton, Missouri is 18.789 ppm.

What are the current nitrogen dioxide (NO2) levels at Clayton, Missouri?

The current nitrogen dioxide (NO2) levels at Clayton, Missouri is 3.728 ppb.

Real-time air quality index in Clayton, Missouri today

Q: What are the current PM2.5 levels in Clayton, Missouri?

The measured PM2.5 levels in Clayton, Missouri at present are 2.141 μg/m3.

Stay updated with real-time air quality in Clayton, Missouri 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

Clayton, Missouri

Last updated: ... (Local time)

Common air pollutants in Clayton, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.14 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.50 μg/m³

155

255

425

605+

Ozone (O₃)

18.79 ppb

201

201+

Sulfur Dioxide (SO₂)

0.39 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.73 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Clayton, Missouri

Scroll To Air Quality Map

Track live Clayton, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	33 \| good	5.807 \| good	24.612 \| good	24.583 \| good	2.205 \| good	8.79 \| good	0.201 \| good
2026-01-21T12:00:00.000Z	27 \| good	5.237 \| good	22.198 \| good	24.843 \| good	2.795 \| good	9.404 \| good	0.199 \| good
2026-01-21T13:00:00.000Z	38 \| good	6.651 \| good	29.537 \| good	22.929 \| good	2.523 \| good	16.708 \| good	0.271 \| good
2026-01-21T14:00:00.000Z	49 \| good	8.734 \| good	38.732 \| good	23.317 \| good	3.069 \| good	17.417 \| good	0.318 \| good
2026-01-21T15:00:00.000Z	49 \| good	8.936 \| good	38.434 \| good	25.42 \| good	2.653 \| good	15.838 \| good	0.368 \| good
2026-01-21T16:00:00.000Z	52 \| moderate	9.859 \| good	43.606 \| good	28.288 \| good	1.79 \| good	8.733 \| good	0.27 \| good
2026-01-21T17:00:00.000Z	54 \| moderate	11.255 \| good	49.034 \| good	27.147 \| good	0.946 \| good	8.018 \| good	0.271 \| good
2026-01-21T18:00:00.000Z	52 \| moderate	9.783 \| good	43.03 \| good	29.47 \| good	1.021 \| good	7.536 \| good	0.27 \| good
2026-01-21T19:00:00.000Z	52 \| moderate	9.596 \| good	41.782 \| good	28.304 \| good	2.485 \| good	7.038 \| good	0.27 \| good
2026-01-21T20:00:00.000Z	49 \| good	8.617 \| good	38.053 \| good	28.659 \| good	0.686 \| good	6.386 \| good	0.27 \| good
2026-01-21T21:00:00.000Z	38 \| good	7.16 \| good	32.206 \| good	31.497 \| good	0.539 \| good	5.389 \| good	0.198 \| good
2026-01-21T22:00:00.000Z	31 \| good	5.465 \| good	24.795 \| good	33.536 \| good	0.56 \| good	5.725 \| good	0.199 \| good
2026-01-21T23:00:00.000Z	29 \| good	4.726 \| good	21.093 \| good	31.448 \| good	0.704 \| good	6.162 \| good	0.271 \| good
2026-01-22T00:00:00.000Z	30 \| good	4.067 \| good	18.603 \| good	31.755 \| good	1.483 \| good	8.403 \| good	0.271 \| good
2026-01-22T01:00:00.000Z	25 \| good	4.038 \| good	17.888 \| good	26.98 \| good	2.021 \| good	13.551 \| good	0.367 \| good
2026-01-22T02:00:00.000Z	25 \| good	2.952 \| good	12.463 \| good	26.59 \| good	0.831 \| good	17.969 \| good	0.343 \| good
2026-01-22T03:00:00.000Z	26 \| good	3.841 \| good	17.059 \| good	27.573 \| good	1.397 \| good	17.506 \| good	0.272 \| good
2026-01-22T04:00:00.000Z	25 \| good	3.158 \| good	13.863 \| good	26.864 \| good	0.896 \| good	7.156 \| good	0.199 \| good
2026-01-22T05:00:00.000Z	24 \| good	2.939 \| good	13.404 \| good	25.827 \| good	0.314 \| good	3.695 \| good	0.104 \| good
2026-01-22T06:00:00.000Z	24 \| good	1.882 \| good	9.583 \| good	26.49 \| good	0.267 \| good	3.239 \| good	0.102 \| good
2026-01-22T07:00:00.000Z	24 \| good	1.882 \| good	9.583 \| good	25.952 \| good	0.252 \| good	3.287 \| good	0.104 \| good
2026-01-22T08:00:00.000Z	20 \| good	1.882 \| good	9.583 \| good	22.402 \| good	0.251 \| good	3.335 \| good	0.104 \| good
2026-01-22T09:00:00.000Z	19 \| good	2.223 \| good	9.301 \| good	20.975 \| good	0.293 \| good	3.816 \| good	0.101 \| good
2026-01-22T10:00:00.000Z	19 \| good	1.342 \| good	11.438 \| good	21.491 \| good	0.243 \| good	7.155 \| good	0.101 \| good
2026-01-22T11:00:00.000Z	20 \| good	0.623 \| good	2.695 \| good	21.804 \| good	0.372 \| good	9.014 \| good	0.1 \| good
2026-01-22T12:00:00.000Z	17 \| good	1.701 \| good	7.94 \| good	18.166 \| good	0.674 \| good	16.141 \| good	0.269 \| good
2026-01-22T13:00:00.000Z	16 \| good	2.233 \| good	9.752 \| good	16.647 \| good	0.581 \| good	12.943 \| good	0.221 \| good
2026-01-22T14:00:00.000Z	19 \| good	2.694 \| good	11.024 \| good	15.701 \| good	0.663 \| good	20.177 \| good	0.544 \| good
2026-01-22T15:00:00.000Z	22 \| good	3.506 \| good	15.798 \| good	18.674 \| good	0.799 \| good	23.253 \| good	0.514 \| good
2026-01-22T16:00:00.000Z	22 \| good	2.466 \| good	10.189 \| good	24.123 \| good	0.726 \| good	19.257 \| good	0.367 \| good
2026-01-22T17:00:00.000Z	23 \| good	2.066 \| good	9.329 \| good	24.638 \| good	0.525 \| good	22.039 \| good	0.294 \| good
2026-01-22T18:00:00.000Z	26 \| good	2.386 \| good	11.557 \| good	27.652 \| good	0.529 \| good	9.324 \| good	0.198 \| good
2026-01-22T19:00:00.000Z	28 \| good	2.722 \| good	13.792 \| good	29.982 \| good	0.299 \| good	6.639 \| good	0.198 \| good
2026-01-22T20:00:00.000Z	29 \| good	0.511 \| good	3.249 \| good	31.212 \| good	0.306 \| good	7.361 \| good	0.198 \| good
2026-01-22T21:00:00.000Z	30 \| good	1.386 \| good	6.905 \| good	32.279 \| good	0.325 \| good	6.806 \| good	0.198 \| good
2026-01-22T22:00:00.000Z	30 \| good	1.32 \| good	5.782 \| good	32.078 \| good	0.395 \| good	6.916 \| good	0.198 \| good
2026-01-22T23:00:00.000Z	28 \| good	1.766 \| good	7.619 \| good	29.752 \| good	0.435 \| good	6.936 \| good	0.199 \| good
2026-01-23T00:00:00.000Z	26 \| good	3.195 \| good	14.931 \| good	28.128 \| good	0.387 \| good	11.649 \| good	0.222 \| good
2026-01-23T01:00:00.000Z	24 \| good	4.459 \| good	19.848 \| good	26.389 \| good	0.579 \| good	16.058 \| good	0.297 \| good
2026-01-23T02:00:00.000Z	33 \| good	5.691 \| good	26.609 \| good	17.7 \| good	0.654 \| good	19.069 \| good	0.323 \| good
2026-01-23T03:00:00.000Z	38 \| good	7.199 \| good	32.075 \| good	11.823 \| good	0.639 \| good	27.842 \| good	0.322 \| good
2026-01-23T04:00:00.000Z	44 \| good	7.608 \| good	35.015 \| good	11.198 \| good	0.742 \| good	36.997 \| good	0.515 \| good
2026-01-23T05:00:00.000Z	52 \| moderate	9.832 \| good	44.844 \| good	12.895 \| good	0.818 \| good	34.977 \| good	0.588 \| good
2026-01-23T06:00:00.000Z	49 \| good	8.565 \| good	38.874 \| good	14.849 \| good	0.662 \| good	24.133 \| good	0.396 \| good
2026-01-23T07:00:00.000Z	49 \| good	8.565 \| good	38.874 \| good	15.825 \| good	0.666 \| good	23.476 \| good	0.395 \| good
2026-01-23T08:00:00.000Z	49 \| good	8.565 \| good	38.874 \| good	15.633 \| good	0.672 \| good	22.329 \| good	0.394 \| good
2026-01-23T09:00:00.000Z	18 \| good	2.141 \| good	9.5 \| good	18.789 \| good	0.387 \| good	3.728 \| good	0.102 \| good
2026-01-23T10:00:00.000Z	18 \| good	2.141 \| good	9.5 \| good	18.789 \| good	0.387 \| good	3.728 \| good	0.102 \| good
2026-01-23T11:00:00.000Z	27 \| good	4.723 \| good	20.814 \| good	23.862 \| good	0.473 \| good	1.481 \| good	0.141 \| good
2026-01-23T12:00:00.000Z	20 \| good	3 \| good	12.584 \| good	21.722 \| good	0.452 \| good	1.397 \| good	0.137 \| good
2026-01-23T13:00:00.000Z	22 \| good	4.373 \| good	18.998 \| good	21.44 \| good	0.468 \| good	1.578 \| good	0.141 \| good
2026-01-23T14:00:00.000Z	22 \| good	3.674 \| good	16.485 \| good	22.389 \| good	0.484 \| good	1.76 \| good	0.145 \| good
2026-01-23T15:00:00.000Z	19 \| good	2.859 \| good	11.865 \| good	20.964 \| good	0.499 \| good	1.941 \| good	0.149 \| good
2026-01-23T16:00:00.000Z	19 \| good	2.975 \| good	12 \| good	19.579 \| good	0.524 \| good	1.787 \| good	0.148 \| good
2026-01-23T17:00:00.000Z	19 \| good	2.026 \| good	8.299 \| good	20.387 \| good	0.549 \| good	1.633 \| good	0.148 \| good
2026-01-23T18:00:00.000Z	19 \| good	3.192 \| good	13.282 \| good	21.057 \| good	0.574 \| good	1.479 \| good	0.147 \| good
2026-01-23T19:00:00.000Z	22 \| good	4.381 \| good	19.045 \| good	20.719 \| good	0.602 \| good	1.673 \| good	0.148 \| good
2026-01-23T20:00:00.000Z	27 \| good	4.702 \| good	20.377 \| good	18.846 \| good	0.63 \| good	1.868 \| good	0.149 \| good
2026-01-23T21:00:00.000Z	27 \| good	4.786 \| good	21.002 \| good	18.092 \| good	0.658 \| good	2.062 \| good	0.15 \| good
2026-01-23T22:00:00.000Z	17 \| good	2.803 \| good	11.667 \| good	18.498 \| good	0.68 \| good	2.692 \| good	0.152 \| good
2026-01-23T23:00:00.000Z	18 \| good	3.029 \| good	12.71 \| good	18.925 \| good	0.702 \| good	3.323 \| good	0.154 \| good
2026-01-24T00:00:00.000Z	14 \| good	2.213 \| good	8.925 \| good	15.03 \| good	0.724 \| good	3.953 \| good	0.156 \| good
2026-01-24T01:00:00.000Z	16 \| good	2.63 \| good	10.775 \| good	17.238 \| good	0.77 \| good	3.973 \| good	0.155 \| good
2026-01-24T02:00:00.000Z	22 \| good	3.866 \| good	16.911 \| good	14.541 \| good	0.816 \| good	3.992 \| good	0.154 \| good
2026-01-24T03:00:00.000Z	38 \| good	6.908 \| good	30.584 \| good	14.725 \| good	0.861 \| good	4.012 \| good	0.153 \| good
2026-01-24T04:00:00.000Z	33 \| good	5.766 \| good	24.946 \| good	14.793 \| good	0.891 \| good	3.873 \| good	0.152 \| good
2026-01-24T05:00:00.000Z	27 \| good	5.431 \| good	23.451 \| good	16.031 \| good	0.921 \| good	3.735 \| good	0.152 \| good
2026-01-24T06:00:00.000Z	22 \| good	4.318 \| good	19 \| good	16.667 \| good	0.95 \| good	3.596 \| good	0.151 \| good
2026-01-24T07:00:00.000Z	22 \| good	4.202 \| good	18.426 \| good	17.598 \| good	0.923 \| good	3.409 \| good	0.151 \| good
2026-01-24T08:00:00.000Z	22 \| good	3.868 \| good	17.028 \| good	18.574 \| good	0.895 \| good	3.222 \| good	0.15 \| good
2026-01-24T09:00:00.000Z	19 \| good	2.701 \| good	10.924 \| good	20.289 \| good	0.868 \| good	3.035 \| good	0.15 \| good
2026-01-24T10:00:00.000Z	20 \| good	2.903 \| good	11.981 \| good	21.682 \| good	0.821 \| good	2.947 \| good	0.15 \| good
2026-01-24T11:00:00.000Z	22 \| good	3.952 \| good	17.1 \| good	20.888 \| good	0.774 \| good	2.86 \| good	0.15 \| good
2026-01-24T12:00:00.000Z	27 \| good	4.513 \| good	19.387 \| good	19.174 \| good	0.727 \| good	2.773 \| good	0.151 \| good
2026-01-24T13:00:00.000Z	44 \| good	7.645 \| good	33.865 \| good	17.931 \| good	0.753 \| good	3.187 \| good	0.154 \| good
2026-01-24T14:00:00.000Z	38 \| good	7.294 \| good	31.924 \| good	15.089 \| good	0.778 \| good	3.601 \| good	0.158 \| good
2026-01-24T15:00:00.000Z	44 \| good	8.041 \| good	35 \| good	12.821 \| good	0.804 \| good	4.015 \| good	0.162 \| good
2026-01-24T16:00:00.000Z	38 \| good	7.243 \| good	32.008 \| good	14.512 \| good	0.87 \| good	3.877 \| good	0.163 \| good
2026-01-24T17:00:00.000Z	27 \| good	5.193 \| good	22.665 \| good	16.564 \| good	0.935 \| good	3.74 \| good	0.163 \| good
2026-01-24T18:00:00.000Z	38 \| good	6.569 \| good	29.065 \| good	19.353 \| good	1 \| good	3.602 \| good	0.164 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.601 \| good	33.269 \| good	20.14 \| good	1.032 \| good	3.887 \| good	0.167 \| good
2026-01-24T20:00:00.000Z	44 \| good	8.47 \| good	37.161 \| good	20.029 \| good	1.064 \| good	4.171 \| good	0.17 \| good
2026-01-24T21:00:00.000Z	49 \| good	8.654 \| good	37.855 \| good	22.318 \| good	1.096 \| good	4.455 \| good	0.173 \| good
2026-01-24T22:00:00.000Z	33 \| good	5.725 \| good	25.514 \| good	25.338 \| good	1.051 \| good	5.32 \| good	0.176 \| good
2026-01-24T23:00:00.000Z	27 \| good	5.038 \| good	21.794 \| good	24.155 \| good	1.007 \| good	6.186 \| good	0.179 \| good
2026-01-25T00:00:00.000Z	23 \| good	3.972 \| good	17.34 \| good	24.897 \| good	0.962 \| good	7.051 \| good	0.182 \| good
2026-01-25T01:00:00.000Z	22 \| good	4.026 \| good	17.865 \| good	22.983 \| good	0.915 \| good	6.972 \| good	0.182 \| good
2026-01-25T02:00:00.000Z	33 \| good	5.838 \| good	25.545 \| good	20.131 \| good	0.868 \| good	6.892 \| good	0.181 \| good
2026-01-25T03:00:00.000Z	52 \| moderate	9.664 \| good	43.185 \| good	18.352 \| good	0.82 \| good	6.813 \| good	0.181 \| good
2026-01-25T04:00:00.000Z	49 \| good	8.979 \| good	39.508 \| good	16.715 \| good	0.764 \| good	6.423 \| good	0.18 \| good
2026-01-25T05:00:00.000Z	44 \| good	8.197 \| good	35.781 \| good	15.781 \| good	0.707 \| good	6.034 \| good	0.179 \| good
2026-01-25T06:00:00.000Z	38 \| good	7.088 \| good	7.352 \| good	24.244 \| good	0.658 \| good	5.647 \| good	0.178 \| good
2026-01-25T07:00:00.000Z	52 \| moderate	9.707 \| good	43.161 \| good	17.767 \| good	0.614 \| good	5.203 \| good	0.176 \| good
2026-01-25T08:00:00.000Z	49 \| good	9.405 \| good	42.037 \| good	17.593 \| good	0.578 \| good	4.762 \| good	0.175 \| good
2026-01-25T09:00:00.000Z	49 \| good	9.079 \| good	40.454 \| good	16.139 \| good	0.542 \| good	4.321 \| good	0.173 \| good
2026-01-25T10:00:00.000Z	44 \| good	8.242 \| good	36.134 \| good	15.234 \| good	0.54 \| good	4.204 \| good	0.174 \| good

Clayton

Empower business decisions with accurate air quality data

Clayton, Missouri air quality map: Real-time AQI near you

0.10ppm

How accurate is Missouri, USA air quality data?

Air quality measurements for Missouri, 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 Clayton, Missouri updated?

Air quality data for Clayton, Missouri is updated on an hourly basis.

When did Clayton, Missouri experience the worst air quality in the last 24 hours?

The worst air quality in Clayton, Missouri was recorded at 05:00:00 on 2026-01-23.

When did Clayton, Missouri have its best air quality in the last 24 hours?

The best air quality in Clayton, Missouri was recorded at 01:00:00 on 2026-01-22.

What is the real-time air quality index for Clayton, Missouri?

The real-time air quality index in Clayton, Missouri is 18, currently categorized as Good.

Which pollutant is found most often in Clayton, Missouri?

The most common pollutant in Clayton, Missouri is O3.

What can I do if the air quality in Clayton, Missouri is poor?

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

What are the current PM_2.5 levels in Clayton, Missouri?

The measured PM_2.5 levels in Clayton, Missouri at present are 2.141 μg/m³.

What are the current PM₁₀ levels at Clayton, Missouri?

The current PM₁₀ levels in Clayton, Missouri are 9.5 μg/m³.

What are the current carbon monoxide (CO) levels at Clayton, Missouri?

The current carbon monoxide (CO) level in Clayton, Missouri is 0.102 ppm.

What are the current sulfur dioxide (SO₂) levels at Clayton, Missouri?

The current sulfur dioxide (SO₂) levels in Clayton, Missouri are 0.387 ppb.

What are the current ozone (O₃) levels at Clayton, Missouri?

The current ozone (O₃) levels at Clayton, Missouri is 18.789 ppm.

What are the current nitrogen dioxide (NO₂) levels at Clayton, Missouri?

The current nitrogen dioxide (NO₂) levels at Clayton, Missouri is 3.728 ppb.

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