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

The current PM10 concentration at Affton, Missouri is 22.846 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Affton, Missouri is 0.599 ppb.

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

The current ozone (O3) concentration at Affton, Missouri is 4.283 ppm.

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

The current nitrogen dioxide (NO2) concentration at Affton, Missouri is 14.387 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 5.425 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)

5.42 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.85 μg/m³

155

255

425

605+

Ozone (O₃)

4.28 ppb

201

201+

Sulfur Dioxide (SO₂)

0.60 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.39 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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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
2026-03-03T11:00:00.000Z	64 \| moderate	16.358 \| fine	69.304 \| fine	12.871 \| good	1.323 \| good	10.888 \| good	0.202 \| good
2026-03-03T12:00:00.000Z	58 \| moderate	13.214 \| fine	55.611 \| fine	10.893 \| good	1.313 \| good	11.093 \| good	0.203 \| good
2026-03-03T13:00:00.000Z	58 \| moderate	13.214 \| fine	55.611 \| fine	10.193 \| good	1.287 \| good	11.281 \| good	0.202 \| good
2026-03-03T14:00:00.000Z	52 \| moderate	10.129 \| good	43.006 \| good	10.017 \| good	0.506 \| good	11.828 \| good	0.264 \| good
2026-03-03T15:00:00.000Z	54 \| moderate	10.929 \| good	47.387 \| good	9.709 \| good	0.57 \| good	11.109 \| good	0.324 \| good
2026-03-03T16:00:00.000Z	58 \| moderate	13.36 \| fine	56.755 \| fine	8.59 \| good	0.767 \| good	12.657 \| good	0.363 \| good
2026-03-03T17:00:00.000Z	64 \| moderate	15.616 \| fine	65.729 \| fine	10.55 \| good	0.731 \| good	12.096 \| good	0.324 \| good
2026-03-03T18:00:00.000Z	58 \| moderate	12.802 \| fine	53.598 \| good	10.464 \| good	0.584 \| good	10.474 \| good	0.32 \| good
2026-03-03T19:00:00.000Z	56 \| moderate	12.233 \| fine	50.672 \| good	10.685 \| good	0.419 \| good	7.096 \| good	0.209 \| good
2026-03-03T20:00:00.000Z	60 \| moderate	13.851 \| fine	57.77 \| fine	10.344 \| good	0.38 \| good	8.106 \| good	0.206 \| good
2026-03-03T21:00:00.000Z	62 \| moderate	14.521 \| fine	60.622 \| fine	10.525 \| good	0.467 \| good	9.267 \| good	0.299 \| good
2026-03-03T22:00:00.000Z	66 \| moderate	17.052 \| fine	71.97 \| fine	9.803 \| good	0.588 \| good	11.077 \| good	0.298 \| good
2026-03-03T23:00:00.000Z	69 \| moderate	18.546 \| fine	77.207 \| fine	9.394 \| good	0.905 \| good	14.406 \| good	0.334 \| good
2026-03-04T00:00:00.000Z	69 \| moderate	19.087 \| fine	79.391 \| fine	6.899 \| good	0.701 \| good	16.749 \| good	0.334 \| good
2026-03-04T01:00:00.000Z	71 \| moderate	20.082 \| fine	85 \| fine	5.154 \| good	0.646 \| good	17.594 \| good	0.358 \| good
2026-03-04T02:00:00.000Z	71 \| moderate	20.116 \| fine	85.282 \| fine	5.28 \| good	0.582 \| good	15.993 \| good	0.298 \| good
2026-03-04T03:00:00.000Z	64 \| moderate	15.773 \| fine	70.105 \| fine	17.238 \| good	1.5 \| good	11.083 \| good	0.259 \| good
2026-03-04T04:00:00.000Z	69 \| moderate	18.597 \| fine	78.859 \| fine	4.515 \| good	0.534 \| good	10.167 \| good	0.238 \| good
2026-03-04T05:00:00.000Z	69 \| moderate	18.565 \| fine	78.571 \| fine	5.526 \| good	0.765 \| good	8.566 \| good	0.206 \| good
2026-03-04T06:00:00.000Z	66 \| moderate	16.653 \| fine	70.572 \| fine	7.311 \| good	0.698 \| good	8.087 \| good	0.24 \| good
2026-03-04T07:00:00.000Z	66 \| moderate	16.653 \| fine	70.572 \| fine	6.243 \| good	0.698 \| good	8.089 \| good	0.238 \| good
2026-03-04T08:00:00.000Z	66 \| moderate	16.653 \| fine	70.572 \| fine	6.887 \| good	0.697 \| good	8.125 \| good	0.241 \| good
2026-03-04T09:00:00.000Z	58 \| moderate	12.781 \| fine	55.551 \| fine	8.285 \| good	0.515 \| good	9.443 \| good	0.203 \| good
2026-03-04T10:00:00.000Z	52 \| moderate	10.178 \| good	43.831 \| good	6.17 \| good	0.534 \| good	11.012 \| good	0.201 \| good
2026-03-04T11:00:00.000Z	52 \| moderate	10.216 \| good	43.509 \| good	7.073 \| good	0.646 \| good	13.643 \| good	0.262 \| good
2026-03-04T12:00:00.000Z	49 \| good	9.471 \| good	40.051 \| good	6.028 \| good	0.37 \| good	13.273 \| good	0.32 \| good
2026-03-04T13:00:00.000Z	52 \| moderate	9.696 \| good	40.803 \| good	4.354 \| good	0.357 \| good	12.24 \| good	0.298 \| good
2026-03-04T14:00:00.000Z	52 \| moderate	9.799 \| good	41.542 \| good	7.233 \| good	0.439 \| good	12.423 \| good	0.494 \| good
2026-03-04T15:00:00.000Z	56 \| moderate	11.969 \| good	43.748 \| good	5.407 \| good	0.567 \| good	12.137 \| good	0.363 \| good
2026-03-04T16:00:00.000Z	60 \| moderate	13.549 \| fine	58.656 \| fine	5.49 \| good	0.437 \| good	13.218 \| good	0.421 \| good
2026-03-04T17:00:00.000Z	64 \| moderate	15.633 \| fine	70.652 \| fine	5.373 \| good	0.408 \| good	15.135 \| good	0.361 \| good
2026-03-04T18:00:00.000Z	69 \| moderate	19.245 \| fine	78.387 \| fine	6.522 \| good	0.418 \| good	16.582 \| good	0.458 \| good
2026-03-04T19:00:00.000Z	69 \| moderate	18.84 \| fine	79.987 \| fine	7.411 \| good	0.494 \| good	15.534 \| good	0.459 \| good
2026-03-04T20:00:00.000Z	64 \| moderate	16.478 \| fine	70.191 \| fine	6.082 \| good	0.399 \| good	15.67 \| good	0.517 \| good
2026-03-04T21:00:00.000Z	60 \| moderate	14.063 \| fine	58.69 \| fine	6.565 \| good	0.524 \| good	15.234 \| good	0.496 \| good
2026-03-04T22:00:00.000Z	62 \| moderate	14.586 \| fine	61.053 \| fine	7.836 \| good	0.71 \| good	17.178 \| good	0.555 \| good
2026-03-04T23:00:00.000Z	64 \| moderate	15.612 \| fine	65.896 \| fine	5.639 \| good	0.55 \| good	14.944 \| good	0.521 \| good
2026-03-05T00:00:00.000Z	62 \| moderate	14.566 \| fine	61.619 \| fine	6.303 \| good	0.394 \| good	14.75 \| good	0.5 \| good
2026-03-05T01:00:00.000Z	58 \| moderate	13.331 \| fine	53.311 \| good	3.96 \| good	0.398 \| good	14.669 \| good	0.434 \| good
2026-03-05T02:00:00.000Z	60 \| moderate	14.066 \| fine	58.601 \| fine	5.626 \| good	0.445 \| good	15.656 \| good	0.595 \| good
2026-03-05T03:00:00.000Z	20 \| good	3.345 \| good	14.625 \| good	21.767 \| good	0.619 \| good	8.388 \| good	0.18 \| good
2026-03-05T04:00:00.000Z	62 \| moderate	15.016 \| fine	65.945 \| fine	3.896 \| good	0.396 \| good	16.504 \| good	0.716 \| good
2026-03-05T05:00:00.000Z	62 \| moderate	14.507 \| fine	64.523 \| fine	3.727 \| good	0.372 \| good	16.208 \| good	0.679 \| good
2026-03-05T06:00:00.000Z	62 \| moderate	14.756 \| fine	65.224 \| fine	5.369 \| good	0.301 \| good	14.766 \| good	0.558 \| good
2026-03-05T07:00:00.000Z	54 \| moderate	11.297 \| good	47.269 \| good	5.269 \| good	0.259 \| good	14.537 \| good	0.553 \| good
2026-03-05T08:00:00.000Z	54 \| moderate	11.297 \| good	47.269 \| good	5.952 \| good	0.256 \| good	14.865 \| good	0.552 \| good
2026-03-05T09:00:00.000Z	54 \| moderate	11.297 \| good	47.269 \| good	4.611 \| good	0.257 \| good	11.845 \| good	0.239 \| good
2026-03-05T10:00:00.000Z	27 \| good	5.425 \| good	22.846 \| good	4.283 \| good	0.599 \| good	14.387 \| good	0.394 \| good
2026-03-05T10:00:00.000Z	27 \| good	5.425 \| good	22.846 \| good	4.283 \| good	0.599 \| good	14.387 \| good	0.394 \| good
2026-03-05T11:00:00.000Z	27 \| good	5.029 \| good	21.638 \| good	26.461 \| good	0.328 \| good	2.385 \| good	0.136 \| good
2026-03-05T12:00:00.000Z	20 \| good	2.601 \| good	10.822 \| good	21.683 \| good	0.334 \| good	2.247 \| good	0.141 \| good
2026-03-05T13:00:00.000Z	27 \| good	4.771 \| good	20.753 \| good	18.019 \| good	0.455 \| good	3.087 \| good	0.162 \| good
2026-03-05T14:00:00.000Z	44 \| good	7.645 \| good	33.397 \| good	18.238 \| good	0.575 \| good	3.926 \| good	0.183 \| good
2026-03-05T15:00:00.000Z	49 \| good	9.094 \| good	40.576 \| good	16.607 \| good	0.695 \| good	4.766 \| good	0.204 \| good
2026-03-05T16:00:00.000Z	44 \| good	8.116 \| good	35.645 \| good	23.694 \| good	0.721 \| good	4.009 \| good	0.199 \| good
2026-03-05T17:00:00.000Z	33 \| good	5.794 \| good	25.251 \| good	29.705 \| good	0.748 \| good	3.252 \| good	0.194 \| good
2026-03-05T18:00:00.000Z	33 \| good	6.29 \| good	27.734 \| good	27.947 \| good	0.774 \| good	2.495 \| good	0.188 \| good
2026-03-05T19:00:00.000Z	38 \| good	6.767 \| good	30.082 \| good	26.55 \| good	0.658 \| good	2.178 \| good	0.182 \| good
2026-03-05T20:00:00.000Z	38 \| good	7.438 \| good	32.751 \| good	28.24 \| good	0.542 \| good	1.861 \| good	0.175 \| good
2026-03-05T21:00:00.000Z	44 \| good	7.535 \| good	33.222 \| good	28.038 \| good	0.426 \| good	1.543 \| good	0.169 \| good
2026-03-05T22:00:00.000Z	38 \| good	7.433 \| good	32.764 \| good	26.287 \| good	0.519 \| good	5.47 \| good	0.2 \| good
2026-03-05T23:00:00.000Z	44 \| good	8.44 \| good	36.829 \| good	22.037 \| good	0.611 \| good	9.396 \| good	0.231 \| good
2026-03-06T00:00:00.000Z	44 \| good	8.157 \| good	36.054 \| good	20.953 \| good	0.704 \| good	13.323 \| good	0.262 \| good
2026-03-06T01:00:00.000Z	49 \| good	8.512 \| good	37.52 \| good	18.504 \| good	0.805 \| good	14.349 \| good	0.268 \| good
2026-03-06T02:00:00.000Z	49 \| good	8.653 \| good	38.089 \| good	20.159 \| good	0.906 \| good	15.374 \| good	0.273 \| good
2026-03-06T03:00:00.000Z	49 \| good	9.459 \| good	42.101 \| good	21.105 \| good	1.007 \| good	16.4 \| good	0.278 \| good
2026-03-06T04:00:00.000Z	49 \| good	9.083 \| good	40.472 \| good	22.616 \| good	0.875 \| good	13.374 \| good	0.246 \| good
2026-03-06T05:00:00.000Z	49 \| good	9.324 \| good	41.513 \| good	22.929 \| good	0.743 \| good	10.348 \| good	0.214 \| good
2026-03-06T06:00:00.000Z	49 \| good	9.332 \| good	41.448 \| good	22.372 \| good	0.611 \| good	7.322 \| good	0.182 \| good
2026-03-06T07:00:00.000Z	49 \| good	9.481 \| good	42.225 \| good	18.267 \| good	0.544 \| good	5.898 \| good	0.163 \| good
2026-03-06T08:00:00.000Z	52 \| moderate	9.937 \| good	44.256 \| good	14.04 \| good	0.476 \| good	4.475 \| good	0.145 \| good
2026-03-06T09:00:00.000Z	44 \| good	7.696 \| good	33.895 \| good	17.579 \| good	0.408 \| good	3.051 \| good	0.126 \| good
2026-03-06T10:00:00.000Z	38 \| good	6.97 \| good	30.782 \| good	17.39 \| good	0.414 \| good	2.97 \| good	0.125 \| good
2026-03-06T11:00:00.000Z	38 \| good	7.495 \| good	33.007 \| good	18.78 \| good	0.42 \| good	2.888 \| good	0.124 \| good
2026-03-06T12:00:00.000Z	27 \| good	5.243 \| good	22.483 \| good	16.19 \| good	0.426 \| good	2.807 \| good	0.123 \| good
2026-03-06T13:00:00.000Z	27 \| good	4.935 \| good	21.449 \| good	15.112 \| good	0.481 \| good	3.144 \| good	0.132 \| good
2026-03-06T14:00:00.000Z	33 \| good	5.981 \| good	26.294 \| good	21.285 \| good	0.535 \| good	3.481 \| good	0.14 \| good
2026-03-06T15:00:00.000Z	38 \| good	6.739 \| good	29.932 \| good	30.974 \| good	0.59 \| good	3.818 \| good	0.149 \| good
2026-03-06T16:00:00.000Z	33 \| good	6.422 \| good	28.526 \| good	34.138 \| good	0.582 \| good	2.902 \| good	0.137 \| good
2026-03-06T17:00:00.000Z	33 \| good	3.833 \| good	16.767 \| good	36.15 \| good	0.574 \| good	1.985 \| good	0.126 \| good
2026-03-06T18:00:00.000Z	33 \| good	3.047 \| good	13.193 \| good	35.732 \| good	0.566 \| good	1.069 \| good	0.114 \| good
2026-03-06T19:00:00.000Z	32 \| good	3.056 \| good	12.856 \| good	35.481 \| good	0.483 \| good	1.011 \| good	0.109 \| good
2026-03-06T20:00:00.000Z	38 \| good	7.156 \| good	31.567 \| good	35.507 \| good	0.4 \| good	0.952 \| good	0.104 \| good
2026-03-06T21:00:00.000Z	38 \| good	7.457 \| good	32.863 \| good	33.964 \| good	0.317 \| good	0.894 \| good	0.099 \| good
2026-03-06T22:00:00.000Z	49 \| good	8.898 \| good	39.477 \| good	32.378 \| good	0.344 \| good	1.697 \| good	0.104 \| good
2026-03-06T23:00:00.000Z	52 \| moderate	9.774 \| good	43.537 \| good	29.591 \| good	0.371 \| good	2.501 \| good	0.109 \| good
2026-03-07T00:00:00.000Z	33 \| good	5.914 \| good	25.918 \| good	29.854 \| good	0.397 \| good	3.304 \| good	0.114 \| good
2026-03-07T01:00:00.000Z	33 \| good	5.58 \| good	24.028 \| good	32.162 \| good	0.404 \| good	3.168 \| good	0.113 \| good
2026-03-07T02:00:00.000Z	38 \| good	7.192 \| good	31.968 \| good	30.381 \| good	0.41 \| good	3.032 \| good	0.111 \| good
2026-03-07T03:00:00.000Z	38 \| good	7.464 \| good	32.854 \| good	30.445 \| good	0.417 \| good	2.896 \| good	0.11 \| good
2026-03-07T04:00:00.000Z	33 \| good	5.986 \| good	26.314 \| good	30.713 \| good	0.395 \| good	2.544 \| good	0.108 \| good
2026-03-07T05:00:00.000Z	33 \| good	5.867 \| good	25.625 \| good	33.159 \| good	0.373 \| good	2.192 \| good	0.106 \| good
2026-03-07T06:00:00.000Z	29 \| good	2.584 \| good	2.696 \| good	31.157 \| good	0.346 \| good	1.822 \| good	0.104 \| good
2026-03-07T07:00:00.000Z	35 \| good	3.978 \| good	17.256 \| good	38.356 \| good	0.341 \| good	1.72 \| good	0.102 \| good
2026-03-07T08:00:00.000Z	35 \| good	4.582 \| good	20.062 \| good	38.348 \| good	0.331 \| good	1.6 \| good	0.101 \| good
2026-03-07T09:00:00.000Z	34 \| good	3.682 \| good	16.284 \| good	36.501 \| good	0.321 \| good	1.48 \| good	0.099 \| good
2026-03-07T10:00:00.000Z	33 \| good	3.691 \| good	16.352 \| good	36.283 \| good	0.319 \| good	1.442 \| good	0.099 \| good

Affton

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Affton, Missouri air quality map: Track AQI near you

0.24ppm

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

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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 07:00:00 on 2026-03-04.

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 03:00:00 on 2026-03-05.

What is the current air quality in Affton, Missouri?

The current air quality in Affton, Missouri is 27, 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 PM2.5.

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 5.425 μg/m³.

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

The current PM₁₀ concentration at Affton, Missouri is 22.846 μg/m³.

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

The current carbon monoxide (CO) concentration at Affton, Missouri is 0.394 ppm.

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

The current sulfur dioxide (SO₂) concentration at Affton, Missouri is 0.599 ppb.

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

The current ozone (O₃) concentration at Affton, Missouri is 4.283 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Affton, Missouri is 14.387 ppb.

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