What is the current concentration of PM10 in Affton, Missouri?

The current PM10 concentration at Affton, Missouri is 23.845 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Affton, Missouri?

The current sulfur dioxide (SO2) concentration at Affton, Missouri is 0.367 ppb.

What is the current concentration of ozone (O3) in Affton, Missouri?

The current ozone (O3) concentration at Affton, Missouri is 43.302 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Affton, Missouri?

The current nitrogen dioxide (NO2) concentration at Affton, Missouri is 3.135 ppb.

Affton, Missouri live air quality index now

Q: What is the current concentration of PM2.5 in Affton, Missouri?

The current PM2.5 concentration at Affton, Missouri is 5.735 μg/m3.

Stay updated with real-time air quality in Affton, 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

Affton, Missouri

Last updated: ... (Local time)

Major air pollutants in Affton, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.74 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.84 μg/m³

155

255

425

605+

Ozone (O₃)

43.30 ppb

201

201+

Sulfur Dioxide (SO₂)

0.37 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.13 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Affton, Missouri

Get Live Pollen Counts

Affton, Missouri

Scroll To Air Quality Map

Track live Affton, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T02:00:00.000Z	49 \| good	9.006 \| good	29.528 \| good	41.996 \| good	0.617 \| good	2.284 \| good	0.205 \| good
2026-07-22T03:00:00.000Z	44 \| good	7.532 \| good	28.556 \| good	39.57 \| good	0.55 \| good	2.314 \| good	0.205 \| good
2026-07-22T04:00:00.000Z	36 \| good	6.395 \| good	21.956 \| good	38.643 \| good	0.582 \| good	3.631 \| good	0.205 \| good
2026-07-22T05:00:00.000Z	38 \| good	6.584 \| good	25.167 \| good	37.24 \| good	0.499 \| good	2.527 \| good	0.205 \| good
2026-07-22T06:00:00.000Z	34 \| good	4.458 \| good	17.635 \| good	36.622 \| good	0.547 \| good	2.348 \| good	0.205 \| good
2026-07-22T07:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.628 \| good	0.54 \| good	2.35 \| good	0.202 \| good
2026-07-22T08:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.83 \| good	0.54 \| good	2.351 \| good	0.202 \| good
2026-07-22T09:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.868 \| good	0.398 \| good	2.884 \| good	0.22 \| good
2026-07-22T10:00:00.000Z	38 \| good	6.658 \| good	24.715 \| good	28.616 \| good	0.506 \| good	3.631 \| good	0.202 \| good
2026-07-22T11:00:00.000Z	38 \| good	6.917 \| good	23.781 \| good	27.982 \| good	0.474 \| good	3.967 \| good	0.202 \| good
2026-07-22T12:00:00.000Z	38 \| good	6.642 \| good	25.125 \| good	26.527 \| good	0.397 \| good	5.483 \| good	0.2 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.492 \| good	25.378 \| good	27.998 \| good	0.442 \| good	4.886 \| good	0.202 \| good
2026-07-22T14:00:00.000Z	33 \| good	6.267 \| good	22.01 \| good	29.748 \| good	0.727 \| good	4.761 \| good	0.2 \| good
2026-07-22T15:00:00.000Z	33 \| good	6.29 \| good	21.928 \| good	29.992 \| good	1.309 \| good	4.509 \| good	0.237 \| good
2026-07-22T16:00:00.000Z	33 \| good	5.648 \| good	18.111 \| good	31.514 \| good	1.043 \| good	3.806 \| good	0.2 \| good
2026-07-22T17:00:00.000Z	34 \| good	5.303 \| good	18.276 \| good	36.701 \| good	0.452 \| good	3.413 \| good	0.2 \| good
2026-07-22T18:00:00.000Z	36 \| good	5.754 \| good	20.546 \| good	38.973 \| good	0.433 \| good	2.683 \| good	0.2 \| good
2026-07-22T19:00:00.000Z	44 \| good	8.451 \| good	18.047 \| good	38.961 \| good	0.712 \| good	1.981 \| good	0.2 \| good
2026-07-22T20:00:00.000Z	37 \| good	5.55 \| good	18.008 \| good	40.26 \| good	0.728 \| good	2.151 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	38 \| good	3.854 \| good	17.081 \| good	40.798 \| good	0.645 \| good	2.144 \| good	0.2 \| good
2026-07-22T22:00:00.000Z	52 \| moderate	9.776 \| good	22.028 \| good	39.648 \| good	0.505 \| good	2.373 \| good	0.2 \| good
2026-07-22T23:00:00.000Z	44 \| good	8.405 \| good	20.021 \| good	39.112 \| good	0.511 \| good	2.773 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	38 \| good	6.83 \| good	21.928 \| good	38.962 \| good	0.577 \| good	3.166 \| good	0.2 \| good
2026-07-23T01:00:00.000Z	35 \| good	6.177 \| good	19.396 \| good	37.543 \| good	0.642 \| good	3.459 \| good	0.2 \| good
2026-07-23T02:00:00.000Z	34 \| good	5.125 \| good	17.864 \| good	36.91 \| good	0.508 \| good	3.704 \| good	0.202 \| good
2026-07-23T03:00:00.000Z	25 \| good	1.871 \| good	7.785 \| good	27.085 \| good	0.971 \| good	5.84 \| good	0.221 \| good
2026-07-23T04:00:00.000Z	33 \| good	6.182 \| good	16.782 \| good	30.587 \| good	0.529 \| good	5.164 \| good	0.204 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.076 \| good	19.572 \| good	28.342 \| good	0.535 \| good	5.861 \| good	0.202 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	28.198 \| good	1.107 \| good	6.825 \| good	0.202 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	27.406 \| good	1.121 \| good	6.939 \| good	0.202 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	27.967 \| good	1.138 \| good	6.958 \| good	0.2 \| good
2026-07-23T09:00:00.000Z	27 \| good	5.267 \| good	17.925 \| good	23.962 \| good	0.687 \| good	6.719 \| good	0.2 \| good
2026-07-23T10:00:00.000Z	22 \| good	4.15 \| good	14.372 \| good	22.184 \| good	0.509 \| good	6.458 \| good	0.2 \| good
2026-07-23T11:00:00.000Z	22 \| good	3.655 \| good	13.335 \| good	21.554 \| good	0.628 \| good	6.318 \| good	0.145 \| good
2026-07-23T12:00:00.000Z	20 \| good	2.961 \| good	13.955 \| good	21.859 \| good	0.492 \| good	7.76 \| good	0.202 \| good
2026-07-23T13:00:00.000Z	21 \| good	3.382 \| good	14.713 \| good	23.178 \| good	0.673 \| good	7.938 \| good	0.257 \| good
2026-07-23T14:00:00.000Z	22 \| good	3.607 \| good	18.283 \| good	24.362 \| good	0.571 \| good	6.58 \| good	0.262 \| good
2026-07-23T15:00:00.000Z	27 \| good	4.613 \| good	20.253 \| good	27.685 \| good	0.583 \| good	5.393 \| good	0.208 \| good
2026-07-23T16:00:00.000Z	31 \| good	4.038 \| good	15.573 \| good	33.028 \| good	0.634 \| good	4.425 \| good	0.204 \| good
2026-07-23T17:00:00.000Z	33 \| good	3.351 \| good	17.358 \| good	36.322 \| good	1.274 \| good	2.687 \| good	0.203 \| good
2026-07-23T18:00:00.000Z	37 \| good	3.821 \| good	16.215 \| good	39.883 \| good	1.187 \| good	2.725 \| good	0.204 \| good
2026-07-23T19:00:00.000Z	38 \| good	4.825 \| good	18.783 \| good	41.295 \| good	1.045 \| good	2.904 \| good	0.206 \| good
2026-07-23T20:00:00.000Z	42 \| good	3.37 \| good	17.708 \| good	45.036 \| good	0.853 \| good	2.742 \| good	0.204 \| good
2026-07-23T21:00:00.000Z	44 \| good	6.731 \| good	19.719 \| good	46.929 \| good	1.079 \| good	2.585 \| good	0.204 \| good
2026-07-23T22:00:00.000Z	44 \| good	4.939 \| good	18.365 \| good	48.348 \| good	0.908 \| good	2.585 \| good	0.202 \| good
2026-07-23T23:00:00.000Z	44 \| good	4.134 \| good	19.195 \| good	47.131 \| good	0.528 \| good	2.821 \| good	0.206 \| good
2026-07-24T00:00:00.000Z	42 \| good	5.16 \| good	20.327 \| good	45.23 \| good	0.4 \| good	2.733 \| good	0.206 \| good
2026-07-24T01:00:00.000Z	40 \| good	5.735 \| good	23.845 \| good	43.302 \| good	0.367 \| good	3.135 \| good	0.204 \| good
2026-07-24T02:00:00.000Z	30 \| good	2.85 \| good	11.804 \| good	32.379 \| good	0.942 \| good	9.072 \| good	0.201 \| good
2026-07-24T03:00:00.000Z	27 \| good	2.729 \| good	11.659 \| good	28.819 \| good	0.921 \| good	10.068 \| good	0.204 \| good
2026-07-24T04:00:00.000Z	24 \| good	2.823 \| good	11.736 \| good	26.096 \| good	0.89 \| good	10.235 \| good	0.2 \| good
2026-07-24T05:00:00.000Z	21 \| good	1.24 \| good	4.902 \| good	23.343 \| good	0.835 \| good	9.968 \| good	0.194 \| good
2026-07-24T06:00:00.000Z	22 \| good	1.28 \| good	5.091 \| good	24.283 \| good	0.768 \| good	9.394 \| good	0.189 \| good
2026-07-24T07:00:00.000Z	22 \| good	0.793 \| good	3.008 \| good	24.151 \| good	0.719 \| good	9.133 \| good	0.186 \| good
2026-07-24T08:00:00.000Z	20 \| good	1.252 \| good	4.938 \| good	22.069 \| good	0.692 \| good	9.403 \| good	0.188 \| good
2026-07-24T09:00:00.000Z	16 \| good	2.383 \| good	9.844 \| good	17.277 \| good	0.697 \| good	10.048 \| good	0.193 \| good
2026-07-24T10:00:00.000Z	12 \| good	2.048 \| good	7.985 \| good	13.357 \| good	0.737 \| good	10.91 \| good	0.201 \| good
2026-07-24T11:00:00.000Z	27 \| good	4.578 \| good	19.74 \| good	7.174 \| good	0.787 \| good	11.483 \| good	0.209 \| good
2026-07-24T12:00:00.000Z	44 \| good	7.583 \| good	33.55 \| good	5.941 \| good	0.82 \| good	10.42 \| good	0.216 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	11.715 \| good	51.663 \| good	5.246 \| good	0.963 \| good	8.488 \| good	0.219 \| good
2026-07-24T14:00:00.000Z	58 \| moderate	13.277 \| fine	59.988 \| fine	8.874 \| good	1.287 \| good	6.254 \| good	0.205 \| good
2026-07-24T15:00:00.000Z	56 \| moderate	11.709 \| good	51.643 \| good	19.251 \| good	1.685 \| good	4.481 \| good	0.19 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	11.28 \| good	49.785 \| good	21.376 \| good	1.779 \| good	3.079 \| good	0.176 \| good
2026-07-24T17:00:00.000Z	58 \| moderate	13.238 \| fine	58.931 \| fine	17.3 \| good	1.776 \| good	2.473 \| good	0.173 \| good
2026-07-24T18:00:00.000Z	60 \| moderate	14.143 \| fine	63.089 \| fine	13.916 \| good	1.721 \| good	1.99 \| good	0.172 \| good
2026-07-24T19:00:00.000Z	60 \| moderate	13.73 \| fine	61.097 \| fine	15.228 \| good	1.67 \| good	1.846 \| good	0.173 \| good
2026-07-24T20:00:00.000Z	54 \| moderate	10.95 \| good	48.028 \| good	21.149 \| good	1.652 \| good	2.011 \| good	0.175 \| good
2026-07-24T21:00:00.000Z	58 \| moderate	12.621 \| fine	56.933 \| fine	25.01 \| good	1.614 \| good	2.705 \| good	0.181 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	9.565 \| good	42.859 \| good	32.848 \| good	1.529 \| good	3.964 \| good	0.193 \| good
2026-07-24T23:00:00.000Z	44 \| good	8.04 \| good	35.098 \| good	37.362 \| good	1.464 \| good	5.575 \| good	0.206 \| good
2026-07-25T00:00:00.000Z	38 \| good	6.546 \| good	28.925 \| good	34.498 \| good	1.327 \| good	6.899 \| good	0.216 \| good
2026-07-25T01:00:00.000Z	31 \| good	4.753 \| good	20.777 \| good	33.132 \| good	1.053 \| good	6.731 \| good	0.21 \| good
2026-07-25T02:00:00.000Z	28 \| good	2.971 \| good	11.941 \| good	29.786 \| good	0.817 \| good	6.279 \| good	0.204 \| good
2026-07-25T03:00:00.000Z	25 \| good	1.973 \| good	7.919 \| good	26.874 \| good	0.69 \| good	5.45 \| good	0.196 \| good
2026-07-25T04:00:00.000Z	22 \| good	3.84 \| good	16.873 \| good	23.475 \| good	0.649 \| good	4.798 \| good	0.191 \| good
2026-07-25T05:00:00.000Z	19 \| good	1.799 \| good	7.716 \| good	21.335 \| good	0.671 \| good	4.346 \| good	0.187 \| good
2026-07-25T06:00:00.000Z	22 \| good	3.854 \| good	17.027 \| good	22.379 \| good	0.724 \| good	3.849 \| good	0.184 \| good
2026-07-25T07:00:00.000Z	19 \| good	2.507 \| good	9.826 \| good	20.871 \| good	0.796 \| good	3.564 \| good	0.182 \| good
2026-07-25T08:00:00.000Z	19 \| good	1.898 \| good	7.804 \| good	19.936 \| good	0.888 \| good	3.375 \| good	0.18 \| good
2026-07-25T09:00:00.000Z	19 \| good	2.868 \| good	11.942 \| good	21.144 \| good	0.996 \| good	3.159 \| good	0.178 \| good
2026-07-25T10:00:00.000Z	27 \| good	5.398 \| good	22.932 \| good	22.031 \| good	1.058 \| good	3.113 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	27 \| good	5.136 \| good	22.042 \| good	21.445 \| good	1.024 \| good	3.129 \| good	0.179 \| good
2026-07-25T12:00:00.000Z	38 \| good	7.012 \| good	30.898 \| good	26.151 \| good	0.895 \| good	3.243 \| good	0.183 \| good
2026-07-25T13:00:00.000Z	44 \| good	8.339 \| good	36.976 \| good	33.754 \| good	0.739 \| good	3.579 \| good	0.192 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	11.426 \| good	50.425 \| good	39.379 \| good	0.666 \| good	3.482 \| good	0.204 \| good
2026-07-25T15:00:00.000Z	56 \| moderate	11.879 \| good	52.377 \| good	40.029 \| good	0.806 \| good	2.429 \| good	0.204 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	11.027 \| good	49.021 \| good	37.203 \| good	1.002 \| good	2.052 \| good	0.197 \| good
2026-07-25T17:00:00.000Z	60 \| moderate	13.943 \| fine	62.911 \| fine	36.341 \| good	1.008 \| good	1.635 \| good	0.195 \| good
2026-07-25T18:00:00.000Z	60 \| moderate	14.093 \| fine	63.098 \| fine	42.471 \| good	1.068 \| good	1.532 \| good	0.196 \| good
2026-07-25T19:00:00.000Z	52 \| moderate	10.47 \| good	46.049 \| good	43.812 \| good	1.408 \| good	1.221 \| good	0.195 \| good
2026-07-25T20:00:00.000Z	56 \| moderate	11.988 \| good	53.88 \| good	40.819 \| good	1.848 \| good	1.127 \| good	0.191 \| good
2026-07-25T21:00:00.000Z	58 \| moderate	12.526 \| fine	56.879 \| fine	40.234 \| good	2.024 \| good	1.231 \| good	0.19 \| good
2026-07-25T22:00:00.000Z	56 \| moderate	11.545 \| good	51.045 \| good	36.697 \| good	2.08 \| good	1.406 \| good	0.19 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.666 \| good	51.085 \| good	33.622 \| good	1.988 \| good	1.758 \| good	0.191 \| good
2026-07-26T00:00:00.000Z	50 \| good	8.673 \| good	8.89 \| good	54.249 \| good	1.694 \| good	2.919 \| good	0.199 \| good
2026-07-26T01:00:00.000Z	54 \| moderate	11.292 \| good	49.814 \| good	31.939 \| good	1.387 \| good	6.414 \| good	0.226 \| good

Affton

Get reliable air quality data to drive your business

Affton, Missouri air quality map: Track AQI near you

0.20ppm

How accurate is Missouri, USA air quality data?

Air quality data and pollutant measurements for Missouri, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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 often is the air quality data for Affton, Missouri updated?

The air quality for Affton, Missouri is updated every hour.

When was the worst air quality at Affton, Missouri in the last 24 hrs?

The worst air quality in Affton, Missouri in the last 24 hours was observed at 11:00:00 on 2026-07-23.

When was the best air quality at Affton, Missouri in the last 24 hrs?

In the last 24 hrs, the best air quality in Affton, Missouri was observed at 12:00:00 on 2026-07-23.

What is the current air quality in Affton, Missouri?

The current air quality in Affton, Missouri is 40, categorized as Good based on real-time data.

What pollutant is the most common in Affton, Missouri?

The most common pollutant in Affton, Missouri is O3.

What should I do if the air quality in Affton, Missouri is poor?

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

What is the current concentration of PM_2.5 in Affton, Missouri?

The current PM_2.5 concentration at Affton, Missouri is 5.735 μg/m³.

What is the current concentration of PM₁₀ in Affton, Missouri?

The current PM₁₀ concentration at Affton, Missouri is 23.845 μg/m³.

What is the current concentration of carbon monoxide (CO) in Affton, Missouri?

The current carbon monoxide (CO) concentration at Affton, Missouri is 0.204 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Affton, Missouri?

The current sulfur dioxide (SO₂) concentration at Affton, Missouri is 0.367 ppb.

What is the current concentration of ozone (O₃) in Affton, Missouri?

The current ozone (O₃) concentration at Affton, Missouri is 43.302 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Affton, Missouri?

The current nitrogen dioxide (NO₂) concentration at Affton, Missouri is 3.135 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T02:00:00.000Z	49 \| good	9.006 \| good	29.528 \| good	41.996 \| good	0.617 \| good	2.284 \| good	0.205 \| good
2026-07-22T03:00:00.000Z	44 \| good	7.532 \| good	28.556 \| good	39.57 \| good	0.55 \| good	2.314 \| good	0.205 \| good
2026-07-22T04:00:00.000Z	36 \| good	6.395 \| good	21.956 \| good	38.643 \| good	0.582 \| good	3.631 \| good	0.205 \| good
2026-07-22T05:00:00.000Z	38 \| good	6.584 \| good	25.167 \| good	37.24 \| good	0.499 \| good	2.527 \| good	0.205 \| good
2026-07-22T06:00:00.000Z	34 \| good	4.458 \| good	17.635 \| good	36.622 \| good	0.547 \| good	2.348 \| good	0.205 \| good
2026-07-22T07:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.628 \| good	0.54 \| good	2.35 \| good	0.202 \| good
2026-07-22T08:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.83 \| good	0.54 \| good	2.351 \| good	0.202 \| good
2026-07-22T09:00:00.000Z	33 \| good	4.458 \| good	17.635 \| good	35.868 \| good	0.398 \| good	2.884 \| good	0.22 \| good
2026-07-22T10:00:00.000Z	38 \| good	6.658 \| good	24.715 \| good	28.616 \| good	0.506 \| good	3.631 \| good	0.202 \| good
2026-07-22T11:00:00.000Z	38 \| good	6.917 \| good	23.781 \| good	27.982 \| good	0.474 \| good	3.967 \| good	0.202 \| good
2026-07-22T12:00:00.000Z	38 \| good	6.642 \| good	25.125 \| good	26.527 \| good	0.397 \| good	5.483 \| good	0.2 \| good
2026-07-22T13:00:00.000Z	33 \| good	6.492 \| good	25.378 \| good	27.998 \| good	0.442 \| good	4.886 \| good	0.202 \| good
2026-07-22T14:00:00.000Z	33 \| good	6.267 \| good	22.01 \| good	29.748 \| good	0.727 \| good	4.761 \| good	0.2 \| good
2026-07-22T15:00:00.000Z	33 \| good	6.29 \| good	21.928 \| good	29.992 \| good	1.309 \| good	4.509 \| good	0.237 \| good
2026-07-22T16:00:00.000Z	33 \| good	5.648 \| good	18.111 \| good	31.514 \| good	1.043 \| good	3.806 \| good	0.2 \| good
2026-07-22T17:00:00.000Z	34 \| good	5.303 \| good	18.276 \| good	36.701 \| good	0.452 \| good	3.413 \| good	0.2 \| good
2026-07-22T18:00:00.000Z	36 \| good	5.754 \| good	20.546 \| good	38.973 \| good	0.433 \| good	2.683 \| good	0.2 \| good
2026-07-22T19:00:00.000Z	44 \| good	8.451 \| good	18.047 \| good	38.961 \| good	0.712 \| good	1.981 \| good	0.2 \| good
2026-07-22T20:00:00.000Z	37 \| good	5.55 \| good	18.008 \| good	40.26 \| good	0.728 \| good	2.151 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	38 \| good	3.854 \| good	17.081 \| good	40.798 \| good	0.645 \| good	2.144 \| good	0.2 \| good
2026-07-22T22:00:00.000Z	52 \| moderate	9.776 \| good	22.028 \| good	39.648 \| good	0.505 \| good	2.373 \| good	0.2 \| good
2026-07-22T23:00:00.000Z	44 \| good	8.405 \| good	20.021 \| good	39.112 \| good	0.511 \| good	2.773 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	38 \| good	6.83 \| good	21.928 \| good	38.962 \| good	0.577 \| good	3.166 \| good	0.2 \| good
2026-07-23T01:00:00.000Z	35 \| good	6.177 \| good	19.396 \| good	37.543 \| good	0.642 \| good	3.459 \| good	0.2 \| good
2026-07-23T02:00:00.000Z	34 \| good	5.125 \| good	17.864 \| good	36.91 \| good	0.508 \| good	3.704 \| good	0.202 \| good
2026-07-23T03:00:00.000Z	25 \| good	1.871 \| good	7.785 \| good	27.085 \| good	0.971 \| good	5.84 \| good	0.221 \| good
2026-07-23T04:00:00.000Z	33 \| good	6.182 \| good	16.782 \| good	30.587 \| good	0.529 \| good	5.164 \| good	0.204 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.076 \| good	19.572 \| good	28.342 \| good	0.535 \| good	5.861 \| good	0.202 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	28.198 \| good	1.107 \| good	6.825 \| good	0.202 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	27.406 \| good	1.121 \| good	6.939 \| good	0.202 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.592 \| good	23.816 \| good	27.967 \| good	1.138 \| good	6.958 \| good	0.2 \| good
2026-07-23T09:00:00.000Z	27 \| good	5.267 \| good	17.925 \| good	23.962 \| good	0.687 \| good	6.719 \| good	0.2 \| good
2026-07-23T10:00:00.000Z	22 \| good	4.15 \| good	14.372 \| good	22.184 \| good	0.509 \| good	6.458 \| good	0.2 \| good
2026-07-23T11:00:00.000Z	22 \| good	3.655 \| good	13.335 \| good	21.554 \| good	0.628 \| good	6.318 \| good	0.145 \| good
2026-07-23T12:00:00.000Z	20 \| good	2.961 \| good	13.955 \| good	21.859 \| good	0.492 \| good	7.76 \| good	0.202 \| good
2026-07-23T13:00:00.000Z	21 \| good	3.382 \| good	14.713 \| good	23.178 \| good	0.673 \| good	7.938 \| good	0.257 \| good
2026-07-23T14:00:00.000Z	22 \| good	3.607 \| good	18.283 \| good	24.362 \| good	0.571 \| good	6.58 \| good	0.262 \| good
2026-07-23T15:00:00.000Z	27 \| good	4.613 \| good	20.253 \| good	27.685 \| good	0.583 \| good	5.393 \| good	0.208 \| good
2026-07-23T16:00:00.000Z	31 \| good	4.038 \| good	15.573 \| good	33.028 \| good	0.634 \| good	4.425 \| good	0.204 \| good
2026-07-23T17:00:00.000Z	33 \| good	3.351 \| good	17.358 \| good	36.322 \| good	1.274 \| good	2.687 \| good	0.203 \| good
2026-07-23T18:00:00.000Z	37 \| good	3.821 \| good	16.215 \| good	39.883 \| good	1.187 \| good	2.725 \| good	0.204 \| good
2026-07-23T19:00:00.000Z	38 \| good	4.825 \| good	18.783 \| good	41.295 \| good	1.045 \| good	2.904 \| good	0.206 \| good
2026-07-23T20:00:00.000Z	42 \| good	3.37 \| good	17.708 \| good	45.036 \| good	0.853 \| good	2.742 \| good	0.204 \| good
2026-07-23T21:00:00.000Z	44 \| good	6.731 \| good	19.719 \| good	46.929 \| good	1.079 \| good	2.585 \| good	0.204 \| good
2026-07-23T22:00:00.000Z	44 \| good	4.939 \| good	18.365 \| good	48.348 \| good	0.908 \| good	2.585 \| good	0.202 \| good
2026-07-23T23:00:00.000Z	44 \| good	4.134 \| good	19.195 \| good	47.131 \| good	0.528 \| good	2.821 \| good	0.206 \| good
2026-07-24T00:00:00.000Z	42 \| good	5.16 \| good	20.327 \| good	45.23 \| good	0.4 \| good	2.733 \| good	0.206 \| good
2026-07-24T01:00:00.000Z	40 \| good	5.735 \| good	23.845 \| good	43.302 \| good	0.367 \| good	3.135 \| good	0.204 \| good
2026-07-24T02:00:00.000Z	30 \| good	2.85 \| good	11.804 \| good	32.379 \| good	0.942 \| good	9.072 \| good	0.201 \| good
2026-07-24T03:00:00.000Z	27 \| good	2.729 \| good	11.659 \| good	28.819 \| good	0.921 \| good	10.068 \| good	0.204 \| good
2026-07-24T04:00:00.000Z	24 \| good	2.823 \| good	11.736 \| good	26.096 \| good	0.89 \| good	10.235 \| good	0.2 \| good
2026-07-24T05:00:00.000Z	21 \| good	1.24 \| good	4.902 \| good	23.343 \| good	0.835 \| good	9.968 \| good	0.194 \| good
2026-07-24T06:00:00.000Z	22 \| good	1.28 \| good	5.091 \| good	24.283 \| good	0.768 \| good	9.394 \| good	0.189 \| good
2026-07-24T07:00:00.000Z	22 \| good	0.793 \| good	3.008 \| good	24.151 \| good	0.719 \| good	9.133 \| good	0.186 \| good
2026-07-24T08:00:00.000Z	20 \| good	1.252 \| good	4.938 \| good	22.069 \| good	0.692 \| good	9.403 \| good	0.188 \| good
2026-07-24T09:00:00.000Z	16 \| good	2.383 \| good	9.844 \| good	17.277 \| good	0.697 \| good	10.048 \| good	0.193 \| good
2026-07-24T10:00:00.000Z	12 \| good	2.048 \| good	7.985 \| good	13.357 \| good	0.737 \| good	10.91 \| good	0.201 \| good
2026-07-24T11:00:00.000Z	27 \| good	4.578 \| good	19.74 \| good	7.174 \| good	0.787 \| good	11.483 \| good	0.209 \| good
2026-07-24T12:00:00.000Z	44 \| good	7.583 \| good	33.55 \| good	5.941 \| good	0.82 \| good	10.42 \| good	0.216 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	11.715 \| good	51.663 \| good	5.246 \| good	0.963 \| good	8.488 \| good	0.219 \| good
2026-07-24T14:00:00.000Z	58 \| moderate	13.277 \| fine	59.988 \| fine	8.874 \| good	1.287 \| good	6.254 \| good	0.205 \| good
2026-07-24T15:00:00.000Z	56 \| moderate	11.709 \| good	51.643 \| good	19.251 \| good	1.685 \| good	4.481 \| good	0.19 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	11.28 \| good	49.785 \| good	21.376 \| good	1.779 \| good	3.079 \| good	0.176 \| good
2026-07-24T17:00:00.000Z	58 \| moderate	13.238 \| fine	58.931 \| fine	17.3 \| good	1.776 \| good	2.473 \| good	0.173 \| good
2026-07-24T18:00:00.000Z	60 \| moderate	14.143 \| fine	63.089 \| fine	13.916 \| good	1.721 \| good	1.99 \| good	0.172 \| good
2026-07-24T19:00:00.000Z	60 \| moderate	13.73 \| fine	61.097 \| fine	15.228 \| good	1.67 \| good	1.846 \| good	0.173 \| good
2026-07-24T20:00:00.000Z	54 \| moderate	10.95 \| good	48.028 \| good	21.149 \| good	1.652 \| good	2.011 \| good	0.175 \| good
2026-07-24T21:00:00.000Z	58 \| moderate	12.621 \| fine	56.933 \| fine	25.01 \| good	1.614 \| good	2.705 \| good	0.181 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	9.565 \| good	42.859 \| good	32.848 \| good	1.529 \| good	3.964 \| good	0.193 \| good
2026-07-24T23:00:00.000Z	44 \| good	8.04 \| good	35.098 \| good	37.362 \| good	1.464 \| good	5.575 \| good	0.206 \| good
2026-07-25T00:00:00.000Z	38 \| good	6.546 \| good	28.925 \| good	34.498 \| good	1.327 \| good	6.899 \| good	0.216 \| good
2026-07-25T01:00:00.000Z	31 \| good	4.753 \| good	20.777 \| good	33.132 \| good	1.053 \| good	6.731 \| good	0.21 \| good
2026-07-25T02:00:00.000Z	28 \| good	2.971 \| good	11.941 \| good	29.786 \| good	0.817 \| good	6.279 \| good	0.204 \| good
2026-07-25T03:00:00.000Z	25 \| good	1.973 \| good	7.919 \| good	26.874 \| good	0.69 \| good	5.45 \| good	0.196 \| good
2026-07-25T04:00:00.000Z	22 \| good	3.84 \| good	16.873 \| good	23.475 \| good	0.649 \| good	4.798 \| good	0.191 \| good
2026-07-25T05:00:00.000Z	19 \| good	1.799 \| good	7.716 \| good	21.335 \| good	0.671 \| good	4.346 \| good	0.187 \| good
2026-07-25T06:00:00.000Z	22 \| good	3.854 \| good	17.027 \| good	22.379 \| good	0.724 \| good	3.849 \| good	0.184 \| good
2026-07-25T07:00:00.000Z	19 \| good	2.507 \| good	9.826 \| good	20.871 \| good	0.796 \| good	3.564 \| good	0.182 \| good
2026-07-25T08:00:00.000Z	19 \| good	1.898 \| good	7.804 \| good	19.936 \| good	0.888 \| good	3.375 \| good	0.18 \| good
2026-07-25T09:00:00.000Z	19 \| good	2.868 \| good	11.942 \| good	21.144 \| good	0.996 \| good	3.159 \| good	0.178 \| good
2026-07-25T10:00:00.000Z	27 \| good	5.398 \| good	22.932 \| good	22.031 \| good	1.058 \| good	3.113 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	27 \| good	5.136 \| good	22.042 \| good	21.445 \| good	1.024 \| good	3.129 \| good	0.179 \| good
2026-07-25T12:00:00.000Z	38 \| good	7.012 \| good	30.898 \| good	26.151 \| good	0.895 \| good	3.243 \| good	0.183 \| good
2026-07-25T13:00:00.000Z	44 \| good	8.339 \| good	36.976 \| good	33.754 \| good	0.739 \| good	3.579 \| good	0.192 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	11.426 \| good	50.425 \| good	39.379 \| good	0.666 \| good	3.482 \| good	0.204 \| good
2026-07-25T15:00:00.000Z	56 \| moderate	11.879 \| good	52.377 \| good	40.029 \| good	0.806 \| good	2.429 \| good	0.204 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	11.027 \| good	49.021 \| good	37.203 \| good	1.002 \| good	2.052 \| good	0.197 \| good
2026-07-25T17:00:00.000Z	60 \| moderate	13.943 \| fine	62.911 \| fine	36.341 \| good	1.008 \| good	1.635 \| good	0.195 \| good
2026-07-25T18:00:00.000Z	60 \| moderate	14.093 \| fine	63.098 \| fine	42.471 \| good	1.068 \| good	1.532 \| good	0.196 \| good
2026-07-25T19:00:00.000Z	52 \| moderate	10.47 \| good	46.049 \| good	43.812 \| good	1.408 \| good	1.221 \| good	0.195 \| good
2026-07-25T20:00:00.000Z	56 \| moderate	11.988 \| good	53.88 \| good	40.819 \| good	1.848 \| good	1.127 \| good	0.191 \| good
2026-07-25T21:00:00.000Z	58 \| moderate	12.526 \| fine	56.879 \| fine	40.234 \| good	2.024 \| good	1.231 \| good	0.19 \| good
2026-07-25T22:00:00.000Z	56 \| moderate	11.545 \| good	51.045 \| good	36.697 \| good	2.08 \| good	1.406 \| good	0.19 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.666 \| good	51.085 \| good	33.622 \| good	1.988 \| good	1.758 \| good	0.191 \| good
2026-07-26T00:00:00.000Z	50 \| good	8.673 \| good	8.89 \| good	54.249 \| good	1.694 \| good	2.919 \| good	0.199 \| good
2026-07-26T01:00:00.000Z	54 \| moderate	11.292 \| good	49.814 \| good	31.939 \| good	1.387 \| good	6.414 \| good	0.226 \| good

Affton, Missouri live air quality index now

Major air pollutants in Affton, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Affton, Missouri air quality forecast and history

Get reliable air quality data to drive your business

Affton, Missouri air quality map: Track AQI near you

Air quality in nearby cities

Crestwood, Missouri

Lemay, Missouri

Mehlville, Missouri

Concord, Missouri

Webster Groves, Missouri

Kirkwood, Missouri

How accurate is Missouri, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Affton, Missouri updated?

When was the worst air quality at Affton, Missouri in the last 24 hrs?

When was the best air quality at Affton, Missouri in the last 24 hrs?

What is the current air quality in Affton, Missouri?

What pollutant is the most common in Affton, Missouri?

What should I do if the air quality in Affton, Missouri is poor?

What is the current concentration of PM2.5 in Affton, Missouri?

What is the current concentration of PM10 in Affton, Missouri?

What is the current concentration of carbon monoxide (CO) in Affton, Missouri?

What is the current concentration of sulfur dioxide (SO2) in Affton, Missouri?

What is the current concentration of ozone (O3) in Affton, Missouri?

What is the current concentration of nitrogen dioxide (NO2) in Affton, Missouri?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Affton, Missouri?

What is the current concentration of PM₁₀ in Affton, Missouri?

What is the current concentration of sulfur dioxide (SO₂) in Affton, Missouri?

What is the current concentration of ozone (O₃) in Affton, Missouri?

What is the current concentration of nitrogen dioxide (NO₂) in Affton, Missouri?