What is the current level of PM10 in Webster Groves, Missouri?

Webster Groves, Missouri currently has a PM10 concentration of 35.457 μg/m3.

What is the current level of sulfur dioxide (SO2) in Webster Groves, Missouri?

The current sulfur dioxide (SO2) concentration in Webster Groves, Missouri is 1.643 ppb.

What is the current level of ozone (O3) in Webster Groves, Missouri?

Webster Groves, Missouri currently has an ozone (O3) concentration of 54.856 ppm.

What is the current level of nitrogen dioxide (NO2) in Webster Groves, Missouri?

The current level of nitrogen dioxide (NO2) in Webster Groves, Missouri is 5.306 ppb.

Current air quality index in Webster Groves, Missouri today

Q: What is the PM2.5 concentration in Webster Groves, Missouri right now?

Webster Groves, Missouri currently has a PM2.5 concentration of 8.014 μg/m3.

Stay updated with real-time air quality in Webster Groves, 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)

Moderate

Webster Groves, Missouri

Last updated: ... (Local time)

Common air pollutants in Webster Groves, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

35.46 μg/m³

155

255

425

605+

Ozone (O₃)

54.86 ppb

201

201+

Sulfur Dioxide (SO₂)

1.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.31 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Webster Groves, Missouri

Get Live Pollen Counts

Webster Groves, Missouri

Scroll To Air Quality Map

Track live Webster Groves, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T23:00:00.000Z	43 \| good	4.035 \| good	24.88 \| good	46.069 \| good	1.372 \| good	5.748 \| good	0.247 \| good
2026-10-21T00:00:00.000Z	38 \| good	5.194 \| good	25.909 \| good	40.929 \| good	1.23 \| good	13.878 \| good	0.439 \| good
2026-10-21T01:00:00.000Z	34 \| good	6.071 \| good	27.364 \| good	36.886 \| good	0.946 \| good	13.132 \| good	0.666 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.737 \| good	30.018 \| good	26.336 \| good	0.858 \| good	20.717 \| good	0.698 \| good
2026-10-21T03:00:00.000Z	64 \| moderate	16.472 \| fine	72.869 \| fine	18.06 \| good	1.359 \| good	23.558 \| good	0.271 \| good
2026-10-21T04:00:00.000Z	56 \| moderate	12.148 \| fine	34.659 \| good	18.985 \| good	0.767 \| good	34.572 \| good	0.66 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.058 \| fine	36.077 \| good	14.697 \| good	0.747 \| good	32.13 \| good	0.847 \| good
2026-10-21T06:00:00.000Z	58 \| moderate	12.978 \| fine	37.946 \| good	12.241 \| good	0.828 \| good	30.025 \| good	0.986 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	12.944 \| fine	37.812 \| good	12.811 \| good	0.826 \| good	29.938 \| good	0.986 \| good
2026-10-21T08:00:00.000Z	58 \| moderate	12.911 \| fine	37.677 \| good	13.579 \| good	0.824 \| good	29.911 \| good	0.986 \| good
2026-10-21T09:00:00.000Z	49 \| good	8.866 \| good	35.798 \| good	6.513 \| good	0.719 \| good	21.252 \| good	0.852 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	9.705 \| good	34.825 \| good	8.583 \| good	0.616 \| good	21.325 \| good	0.841 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	10.629 \| good	33.915 \| good	12.406 \| good	0.81 \| good	12.206 \| good	0.799 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	10.17 \| good	33.821 \| good	11.454 \| good	1.03 \| good	9.071 \| good	0.896 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	10.17 \| good	33.821 \| good	11.607 \| good	1.03 \| good	8.695 \| good	0.899 \| good
2026-10-21T14:00:00.000Z	54 \| moderate	11.292 \| good	41.642 \| good	6.967 \| good	1.293 \| good	10.615 \| good	1.024 \| good
2026-10-21T15:00:00.000Z	56 \| moderate	12.368 \| fine	49.001 \| good	9.706 \| good	1.3 \| good	30.842 \| good	0.76 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	13.401 \| fine	48.813 \| good	9.852 \| good	1.049 \| good	19.52 \| good	0.564 \| good
2026-10-21T17:00:00.000Z	56 \| moderate	11.875 \| good	41.28 \| good	16.086 \| good	2.025 \| good	18.893 \| good	0.431 \| good
2026-10-21T18:00:00.000Z	49 \| good	8.502 \| good	32.815 \| good	29.497 \| good	2.28 \| good	8.823 \| good	0.297 \| good
2026-10-21T19:00:00.000Z	38 \| good	7.361 \| good	28.439 \| good	37.025 \| good	1.946 \| good	6.867 \| good	0.302 \| good
2026-10-21T20:00:00.000Z	44 \| good	7.737 \| good	26.269 \| good	45.575 \| good	1.365 \| good	6.289 \| good	0.252 \| good
2026-10-21T21:00:00.000Z	48 \| good	7.182 \| good	25.449 \| good	51.504 \| good	1.133 \| good	4.817 \| good	0.251 \| good
2026-10-21T22:00:00.000Z	49 \| good	6.391 \| good	24.963 \| good	52.566 \| good	1.057 \| good	4.616 \| good	0.242 \| good
2026-10-21T23:00:00.000Z	47 \| good	6.068 \| good	24.389 \| good	50.827 \| good	0.926 \| good	5.968 \| good	0.242 \| good
2026-10-22T00:00:00.000Z	40 \| good	6.695 \| good	24.323 \| good	43.024 \| good	0.781 \| good	10.129 \| good	0.294 \| good
2026-10-22T01:00:00.000Z	38 \| good	7.455 \| good	25.921 \| good	39.504 \| good	0.871 \| good	14.77 \| good	0.665 \| good
2026-10-22T02:00:00.000Z	38 \| good	6.747 \| good	25.831 \| good	37.719 \| good	0.75 \| good	12.251 \| good	0.713 \| good
2026-10-22T03:00:00.000Z	64 \| moderate	15.713 \| fine	70.585 \| fine	13.846 \| good	3.491 \| good	43.314 \| good	0.48 \| good
2026-10-22T04:00:00.000Z	52 \| moderate	9.714 \| good	31.131 \| good	25.686 \| good	1.044 \| good	21.285 \| good	0.985 \| good
2026-10-22T05:00:00.000Z	54 \| moderate	10.627 \| good	34.798 \| good	23.036 \| good	0.813 \| good	21.989 \| good	0.999 \| good
2026-10-22T06:00:00.000Z	54 \| moderate	11.298 \| good	35.177 \| good	21.581 \| good	0.724 \| good	16.462 \| good	0.918 \| good
2026-10-22T07:00:00.000Z	54 \| moderate	11.298 \| good	35.177 \| good	20.827 \| good	0.732 \| good	16.834 \| good	0.917 \| good
2026-10-22T08:00:00.000Z	54 \| moderate	11.278 \| good	35.177 \| good	21.126 \| good	0.731 \| good	17.006 \| good	0.895 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	15.771 \| fine	38.288 \| good	13.197 \| good	0.719 \| good	17.122 \| good	0.84 \| good
2026-10-22T10:00:00.000Z	58 \| moderate	13.171 \| fine	34.661 \| good	8.518 \| good	0.72 \| good	15.07 \| good	0.743 \| good
2026-10-22T11:00:00.000Z	58 \| moderate	12.615 \| fine	33.559 \| good	3.816 \| good	0.639 \| good	13.968 \| good	0.759 \| good
2026-10-22T12:00:00.000Z	56 \| moderate	11.625 \| good	45.192 \| good	4.527 \| good	0.643 \| good	13.917 \| good	0.812 \| good
2026-10-22T13:00:00.000Z	56 \| moderate	11.551 \| good	33.718 \| good	4.64 \| good	0.655 \| good	13.774 \| good	0.798 \| good
2026-10-22T14:00:00.000Z	54 \| moderate	10.867 \| good	36.363 \| good	9.492 \| good	0.74 \| good	12.736 \| good	0.871 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	11.662 \| good	43.755 \| good	13.601 \| good	1.112 \| good	14.099 \| good	0.781 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	12.025 \| good	45.367 \| good	14.15 \| good	1.009 \| good	14.085 \| good	0.75 \| good
2026-10-22T17:00:00.000Z	56 \| moderate	12.345 \| fine	50.92 \| good	28.548 \| good	3.586 \| good	12.905 \| good	0.563 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	11.127 \| good	44.38 \| good	35.577 \| good	3.873 \| good	8.024 \| good	0.509 \| good
2026-10-22T19:00:00.000Z	52 \| moderate	9.831 \| good	38.329 \| good	39.589 \| good	3.928 \| good	6.32 \| good	0.409 \| good
2026-10-22T20:00:00.000Z	46 \| good	8.213 \| good	32.666 \| good	49.775 \| good	2.125 \| good	6.983 \| good	0.197 \| good
2026-10-22T21:00:00.000Z	58 \| moderate	8.067 \| good	30.137 \| good	57.037 \| fine	1.692 \| good	4.627 \| good	0.197 \| good
2026-10-22T22:00:00.000Z	58 \| moderate	8.09 \| good	29.841 \| good	56.901 \| fine	1.637 \| good	6.237 \| good	0.197 \| good
2026-10-22T22:00:00.000Z	51 \| moderate	8.014 \| good	35.457 \| good	54.856 \| good	1.643 \| good	5.306 \| good	0.199 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.367 \| fine	72.585 \| fine	43.886 \| good	2.382 \| good	12.937 \| good	0.25 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	12.559 \| fine	56.388 \| fine	36.196 \| good	2.445 \| good	24.758 \| good	0.33 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.316 \| fine	60.635 \| fine	22.783 \| good	2.501 \| good	33.515 \| good	0.381 \| good
2026-10-23T02:00:00.000Z	62 \| moderate	14.995 \| fine	66.94 \| fine	19.552 \| good	2.48 \| good	36.805 \| good	0.404 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	14.738 \| fine	65.126 \| fine	10.647 \| good	2.385 \| good	37.032 \| good	0.409 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	12.692 \| fine	56.965 \| fine	12.335 \| good	2.248 \| good	36.396 \| good	0.408 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	11.664 \| good	51.125 \| good	16.376 \| good	2.023 \| good	33.654 \| good	0.398 \| good
2026-10-23T06:00:00.000Z	54 \| moderate	10.802 \| good	47.892 \| good	15.992 \| good	1.723 \| good	28.13 \| good	0.368 \| good
2026-10-23T07:00:00.000Z	56 \| moderate	11.829 \| good	52.102 \| good	15.904 \| good	1.469 \| good	22.542 \| good	0.331 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	12.149 \| fine	54.635 \| good	10.724 \| good	1.261 \| good	17.581 \| good	0.297 \| good
2026-10-23T09:00:00.000Z	58 \| moderate	13.244 \| fine	59.03 \| fine	10.277 \| good	1.119 \| good	14.021 \| good	0.272 \| good
2026-10-23T10:00:00.000Z	58 \| moderate	13.443 \| fine	60.821 \| fine	10.639 \| good	1.049 \| good	12.415 \| good	0.261 \| good
2026-10-23T11:00:00.000Z	60 \| moderate	13.891 \| fine	62.703 \| fine	8.964 \| good	1.036 \| good	12.331 \| good	0.259 \| good
2026-10-23T12:00:00.000Z	60 \| moderate	14.071 \| fine	62.733 \| fine	3.408 \| good	1.087 \| good	14.519 \| good	0.27 \| good
2026-10-23T13:00:00.000Z	62 \| moderate	14.653 \| fine	64.898 \| fine	9.204 \| good	1.193 \| good	16.966 \| good	0.299 \| good
2026-10-23T14:00:00.000Z	66 \| moderate	16.886 \| fine	74.741 \| fine	17.035 \| good	1.203 \| good	13.053 \| good	0.303 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	15.38 \| fine	68.718 \| fine	25.149 \| good	1.374 \| good	9.315 \| good	0.266 \| good
2026-10-23T16:00:00.000Z	58 \| moderate	13.185 \| fine	58.945 \| fine	34.387 \| good	1.644 \| good	6.161 \| good	0.232 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	9.783 \| good	43.878 \| good	44.327 \| good	1.901 \| good	3.692 \| good	0.203 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.054 \| good	49.058 \| good	49.823 \| good	1.825 \| good	1.984 \| good	0.183 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.954 \| good	48.088 \| good	52.79 \| good	1.665 \| good	1.5 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	54 \| moderate	10.629 \| good	46.962 \| good	55.414 \| fine	1.581 \| good	1.428 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	54 \| moderate	9.833 \| good	43.902 \| good	56.026 \| fine	1.543 \| good	1.593 \| good	0.177 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.659 \| good	46.967 \| good	53.974 \| good	1.503 \| good	2.239 \| good	0.181 \| good
2026-10-23T23:00:00.000Z	62 \| moderate	14.5 \| fine	64.884 \| fine	40.918 \| good	1.415 \| good	5.812 \| good	0.205 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	12.272 \| fine	54.672 \| good	31.616 \| good	1.376 \| good	9.31 \| good	0.228 \| good
2026-10-24T01:00:00.000Z	56 \| moderate	11.641 \| good	51.084 \| good	24.898 \| good	1.344 \| good	9.734 \| good	0.228 \| good
2026-10-24T02:00:00.000Z	56 \| moderate	12.048 \| good	53.986 \| good	25.05 \| good	1.314 \| good	9.373 \| good	0.224 \| good
2026-10-24T03:00:00.000Z	58 \| moderate	13.371 \| fine	60.733 \| fine	21.025 \| good	1.285 \| good	8.63 \| good	0.22 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	13.261 \| fine	59.03 \| fine	22.622 \| good	1.262 \| good	7.96 \| good	0.217 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.325 \| fine	54.876 \| good	20.767 \| good	1.228 \| good	7.079 \| good	0.215 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	11.756 \| good	51.886 \| good	18.403 \| good	1.19 \| good	6.224 \| good	0.213 \| good
2026-10-24T07:00:00.000Z	52 \| moderate	10.446 \| good	45.884 \| good	14.702 \| good	1.166 \| good	5.844 \| good	0.211 \| good
2026-10-24T08:00:00.000Z	52 \| moderate	10.374 \| good	45.853 \| good	12.977 \| good	1.145 \| good	5.816 \| good	0.212 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	10.74 \| good	47.746 \| good	10.617 \| good	1.128 \| good	6.103 \| good	0.214 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	10.726 \| good	47.784 \| good	8.867 \| good	1.121 \| good	6.508 \| good	0.217 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	10.379 \| good	45.833 \| good	10.27 \| good	1.122 \| good	7.11 \| good	0.22 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.572 \| good	33.665 \| good	6.676 \| good	1.156 \| good	8.878 \| good	0.229 \| good
2026-10-24T13:00:00.000Z	44 \| good	7.903 \| good	34.757 \| good	7.625 \| good	1.215 \| good	11.118 \| good	0.248 \| good
2026-10-24T14:00:00.000Z	54 \| moderate	10.57 \| good	46.781 \| good	15.276 \| good	1.201 \| good	9.446 \| good	0.259 \| good
2026-10-24T15:00:00.000Z	52 \| moderate	9.99 \| good	44.81 \| good	20.421 \| good	1.291 \| good	6.604 \| good	0.235 \| good
2026-10-24T16:00:00.000Z	49 \| good	8.829 \| good	38.944 \| good	29.76 \| good	1.377 \| good	4.764 \| good	0.217 \| good
2026-10-24T17:00:00.000Z	35 \| good	5.818 \| good	25.004 \| good	38.135 \| good	1.448 \| good	3.219 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	40 \| good	5.928 \| good	26.778 \| good	43.035 \| good	1.416 \| good	2.097 \| good	0.182 \| good
2026-10-24T19:00:00.000Z	44 \| good	7.817 \| good	34.014 \| good	48.485 \| good	1.378 \| good	1.624 \| good	0.173 \| good
2026-10-24T20:00:00.000Z	48 \| good	6.437 \| good	28.844 \| good	52.324 \| good	1.313 \| good	1.564 \| good	0.17 \| good
2026-10-24T21:00:00.000Z	47 \| good	5.465 \| good	23.154 \| good	51.396 \| good	1.243 \| good	1.663 \| good	0.168 \| good
2026-10-24T22:00:00.000Z	44 \| good	7.437 \| good	32.892 \| good	47.364 \| good	1.192 \| good	2.381 \| good	0.172 \| good

Webster Groves

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Webster Groves, Missouri

0.20ppm

How accurate is Missouri, USA air quality data?

The air quality data for Missouri, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Webster Groves, Missouri get updated?

Air quality updates for Webster Groves, Missouri are available every hour.

What time in the past 24 hours saw the poorest air quality in Webster Groves, Missouri?

Webster Groves, Missouri experienced its worst air quality at 09:00:00, 2026-10-22.

When was air quality in Webster Groves, Missouri the best over the past 24 hours?

The best air quality in Webster Groves, Missouri was observed at 02:00:00 on 2026-10-22.

What is the air quality in Webster Groves, Missouri right now?

The air quality in Webster Groves, Missouri right now is Moderate, with an AQI of 51.

What pollutant is most frequently found in Webster Groves, Missouri?

In Webster Groves, Missouri, O3 is the most frequently found pollutant.

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

When air quality in Webster Groves, Missouri is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Webster Groves, Missouri right now?

Webster Groves, Missouri currently has a PM_2.5 concentration of 8.014 μg/m³.

What is the current level of PM₁₀ in Webster Groves, Missouri?

Webster Groves, Missouri currently has a PM₁₀ concentration of 35.457 μg/m³.

What is the current level of carbon monoxide (CO) in Webster Groves, Missouri?

The current carbon monoxide (CO) level in Webster Groves, Missouri is 0.199 ppm.

What is the current level of sulfur dioxide (SO₂) in Webster Groves, Missouri?

The current sulfur dioxide (SO₂) concentration in Webster Groves, Missouri is 1.643 ppb.

What is the current level of ozone (O₃) in Webster Groves, Missouri?

Webster Groves, Missouri currently has an ozone (O₃) concentration of 54.856 ppm.

What is the current level of nitrogen dioxide (NO₂) in Webster Groves, Missouri?

The current level of nitrogen dioxide (NO₂) in Webster Groves, Missouri is 5.306 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T23:00:00.000Z	43 \| good	4.035 \| good	24.88 \| good	46.069 \| good	1.372 \| good	5.748 \| good	0.247 \| good
2026-10-21T00:00:00.000Z	38 \| good	5.194 \| good	25.909 \| good	40.929 \| good	1.23 \| good	13.878 \| good	0.439 \| good
2026-10-21T01:00:00.000Z	34 \| good	6.071 \| good	27.364 \| good	36.886 \| good	0.946 \| good	13.132 \| good	0.666 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.737 \| good	30.018 \| good	26.336 \| good	0.858 \| good	20.717 \| good	0.698 \| good
2026-10-21T03:00:00.000Z	64 \| moderate	16.472 \| fine	72.869 \| fine	18.06 \| good	1.359 \| good	23.558 \| good	0.271 \| good
2026-10-21T04:00:00.000Z	56 \| moderate	12.148 \| fine	34.659 \| good	18.985 \| good	0.767 \| good	34.572 \| good	0.66 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.058 \| fine	36.077 \| good	14.697 \| good	0.747 \| good	32.13 \| good	0.847 \| good
2026-10-21T06:00:00.000Z	58 \| moderate	12.978 \| fine	37.946 \| good	12.241 \| good	0.828 \| good	30.025 \| good	0.986 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	12.944 \| fine	37.812 \| good	12.811 \| good	0.826 \| good	29.938 \| good	0.986 \| good
2026-10-21T08:00:00.000Z	58 \| moderate	12.911 \| fine	37.677 \| good	13.579 \| good	0.824 \| good	29.911 \| good	0.986 \| good
2026-10-21T09:00:00.000Z	49 \| good	8.866 \| good	35.798 \| good	6.513 \| good	0.719 \| good	21.252 \| good	0.852 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	9.705 \| good	34.825 \| good	8.583 \| good	0.616 \| good	21.325 \| good	0.841 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	10.629 \| good	33.915 \| good	12.406 \| good	0.81 \| good	12.206 \| good	0.799 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	10.17 \| good	33.821 \| good	11.454 \| good	1.03 \| good	9.071 \| good	0.896 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	10.17 \| good	33.821 \| good	11.607 \| good	1.03 \| good	8.695 \| good	0.899 \| good
2026-10-21T14:00:00.000Z	54 \| moderate	11.292 \| good	41.642 \| good	6.967 \| good	1.293 \| good	10.615 \| good	1.024 \| good
2026-10-21T15:00:00.000Z	56 \| moderate	12.368 \| fine	49.001 \| good	9.706 \| good	1.3 \| good	30.842 \| good	0.76 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	13.401 \| fine	48.813 \| good	9.852 \| good	1.049 \| good	19.52 \| good	0.564 \| good
2026-10-21T17:00:00.000Z	56 \| moderate	11.875 \| good	41.28 \| good	16.086 \| good	2.025 \| good	18.893 \| good	0.431 \| good
2026-10-21T18:00:00.000Z	49 \| good	8.502 \| good	32.815 \| good	29.497 \| good	2.28 \| good	8.823 \| good	0.297 \| good
2026-10-21T19:00:00.000Z	38 \| good	7.361 \| good	28.439 \| good	37.025 \| good	1.946 \| good	6.867 \| good	0.302 \| good
2026-10-21T20:00:00.000Z	44 \| good	7.737 \| good	26.269 \| good	45.575 \| good	1.365 \| good	6.289 \| good	0.252 \| good
2026-10-21T21:00:00.000Z	48 \| good	7.182 \| good	25.449 \| good	51.504 \| good	1.133 \| good	4.817 \| good	0.251 \| good
2026-10-21T22:00:00.000Z	49 \| good	6.391 \| good	24.963 \| good	52.566 \| good	1.057 \| good	4.616 \| good	0.242 \| good
2026-10-21T23:00:00.000Z	47 \| good	6.068 \| good	24.389 \| good	50.827 \| good	0.926 \| good	5.968 \| good	0.242 \| good
2026-10-22T00:00:00.000Z	40 \| good	6.695 \| good	24.323 \| good	43.024 \| good	0.781 \| good	10.129 \| good	0.294 \| good
2026-10-22T01:00:00.000Z	38 \| good	7.455 \| good	25.921 \| good	39.504 \| good	0.871 \| good	14.77 \| good	0.665 \| good
2026-10-22T02:00:00.000Z	38 \| good	6.747 \| good	25.831 \| good	37.719 \| good	0.75 \| good	12.251 \| good	0.713 \| good
2026-10-22T03:00:00.000Z	64 \| moderate	15.713 \| fine	70.585 \| fine	13.846 \| good	3.491 \| good	43.314 \| good	0.48 \| good
2026-10-22T04:00:00.000Z	52 \| moderate	9.714 \| good	31.131 \| good	25.686 \| good	1.044 \| good	21.285 \| good	0.985 \| good
2026-10-22T05:00:00.000Z	54 \| moderate	10.627 \| good	34.798 \| good	23.036 \| good	0.813 \| good	21.989 \| good	0.999 \| good
2026-10-22T06:00:00.000Z	54 \| moderate	11.298 \| good	35.177 \| good	21.581 \| good	0.724 \| good	16.462 \| good	0.918 \| good
2026-10-22T07:00:00.000Z	54 \| moderate	11.298 \| good	35.177 \| good	20.827 \| good	0.732 \| good	16.834 \| good	0.917 \| good
2026-10-22T08:00:00.000Z	54 \| moderate	11.278 \| good	35.177 \| good	21.126 \| good	0.731 \| good	17.006 \| good	0.895 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	15.771 \| fine	38.288 \| good	13.197 \| good	0.719 \| good	17.122 \| good	0.84 \| good
2026-10-22T10:00:00.000Z	58 \| moderate	13.171 \| fine	34.661 \| good	8.518 \| good	0.72 \| good	15.07 \| good	0.743 \| good
2026-10-22T11:00:00.000Z	58 \| moderate	12.615 \| fine	33.559 \| good	3.816 \| good	0.639 \| good	13.968 \| good	0.759 \| good
2026-10-22T12:00:00.000Z	56 \| moderate	11.625 \| good	45.192 \| good	4.527 \| good	0.643 \| good	13.917 \| good	0.812 \| good
2026-10-22T13:00:00.000Z	56 \| moderate	11.551 \| good	33.718 \| good	4.64 \| good	0.655 \| good	13.774 \| good	0.798 \| good
2026-10-22T14:00:00.000Z	54 \| moderate	10.867 \| good	36.363 \| good	9.492 \| good	0.74 \| good	12.736 \| good	0.871 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	11.662 \| good	43.755 \| good	13.601 \| good	1.112 \| good	14.099 \| good	0.781 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	12.025 \| good	45.367 \| good	14.15 \| good	1.009 \| good	14.085 \| good	0.75 \| good
2026-10-22T17:00:00.000Z	56 \| moderate	12.345 \| fine	50.92 \| good	28.548 \| good	3.586 \| good	12.905 \| good	0.563 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	11.127 \| good	44.38 \| good	35.577 \| good	3.873 \| good	8.024 \| good	0.509 \| good
2026-10-22T19:00:00.000Z	52 \| moderate	9.831 \| good	38.329 \| good	39.589 \| good	3.928 \| good	6.32 \| good	0.409 \| good
2026-10-22T20:00:00.000Z	46 \| good	8.213 \| good	32.666 \| good	49.775 \| good	2.125 \| good	6.983 \| good	0.197 \| good
2026-10-22T21:00:00.000Z	58 \| moderate	8.067 \| good	30.137 \| good	57.037 \| fine	1.692 \| good	4.627 \| good	0.197 \| good
2026-10-22T22:00:00.000Z	58 \| moderate	8.09 \| good	29.841 \| good	56.901 \| fine	1.637 \| good	6.237 \| good	0.197 \| good
2026-10-22T22:00:00.000Z	51 \| moderate	8.014 \| good	35.457 \| good	54.856 \| good	1.643 \| good	5.306 \| good	0.199 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.367 \| fine	72.585 \| fine	43.886 \| good	2.382 \| good	12.937 \| good	0.25 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	12.559 \| fine	56.388 \| fine	36.196 \| good	2.445 \| good	24.758 \| good	0.33 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.316 \| fine	60.635 \| fine	22.783 \| good	2.501 \| good	33.515 \| good	0.381 \| good
2026-10-23T02:00:00.000Z	62 \| moderate	14.995 \| fine	66.94 \| fine	19.552 \| good	2.48 \| good	36.805 \| good	0.404 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	14.738 \| fine	65.126 \| fine	10.647 \| good	2.385 \| good	37.032 \| good	0.409 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	12.692 \| fine	56.965 \| fine	12.335 \| good	2.248 \| good	36.396 \| good	0.408 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	11.664 \| good	51.125 \| good	16.376 \| good	2.023 \| good	33.654 \| good	0.398 \| good
2026-10-23T06:00:00.000Z	54 \| moderate	10.802 \| good	47.892 \| good	15.992 \| good	1.723 \| good	28.13 \| good	0.368 \| good
2026-10-23T07:00:00.000Z	56 \| moderate	11.829 \| good	52.102 \| good	15.904 \| good	1.469 \| good	22.542 \| good	0.331 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	12.149 \| fine	54.635 \| good	10.724 \| good	1.261 \| good	17.581 \| good	0.297 \| good
2026-10-23T09:00:00.000Z	58 \| moderate	13.244 \| fine	59.03 \| fine	10.277 \| good	1.119 \| good	14.021 \| good	0.272 \| good
2026-10-23T10:00:00.000Z	58 \| moderate	13.443 \| fine	60.821 \| fine	10.639 \| good	1.049 \| good	12.415 \| good	0.261 \| good
2026-10-23T11:00:00.000Z	60 \| moderate	13.891 \| fine	62.703 \| fine	8.964 \| good	1.036 \| good	12.331 \| good	0.259 \| good
2026-10-23T12:00:00.000Z	60 \| moderate	14.071 \| fine	62.733 \| fine	3.408 \| good	1.087 \| good	14.519 \| good	0.27 \| good
2026-10-23T13:00:00.000Z	62 \| moderate	14.653 \| fine	64.898 \| fine	9.204 \| good	1.193 \| good	16.966 \| good	0.299 \| good
2026-10-23T14:00:00.000Z	66 \| moderate	16.886 \| fine	74.741 \| fine	17.035 \| good	1.203 \| good	13.053 \| good	0.303 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	15.38 \| fine	68.718 \| fine	25.149 \| good	1.374 \| good	9.315 \| good	0.266 \| good
2026-10-23T16:00:00.000Z	58 \| moderate	13.185 \| fine	58.945 \| fine	34.387 \| good	1.644 \| good	6.161 \| good	0.232 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	9.783 \| good	43.878 \| good	44.327 \| good	1.901 \| good	3.692 \| good	0.203 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.054 \| good	49.058 \| good	49.823 \| good	1.825 \| good	1.984 \| good	0.183 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.954 \| good	48.088 \| good	52.79 \| good	1.665 \| good	1.5 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	54 \| moderate	10.629 \| good	46.962 \| good	55.414 \| fine	1.581 \| good	1.428 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	54 \| moderate	9.833 \| good	43.902 \| good	56.026 \| fine	1.543 \| good	1.593 \| good	0.177 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.659 \| good	46.967 \| good	53.974 \| good	1.503 \| good	2.239 \| good	0.181 \| good
2026-10-23T23:00:00.000Z	62 \| moderate	14.5 \| fine	64.884 \| fine	40.918 \| good	1.415 \| good	5.812 \| good	0.205 \| good
2026-10-24T00:00:00.000Z	56 \| moderate	12.272 \| fine	54.672 \| good	31.616 \| good	1.376 \| good	9.31 \| good	0.228 \| good
2026-10-24T01:00:00.000Z	56 \| moderate	11.641 \| good	51.084 \| good	24.898 \| good	1.344 \| good	9.734 \| good	0.228 \| good
2026-10-24T02:00:00.000Z	56 \| moderate	12.048 \| good	53.986 \| good	25.05 \| good	1.314 \| good	9.373 \| good	0.224 \| good
2026-10-24T03:00:00.000Z	58 \| moderate	13.371 \| fine	60.733 \| fine	21.025 \| good	1.285 \| good	8.63 \| good	0.22 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	13.261 \| fine	59.03 \| fine	22.622 \| good	1.262 \| good	7.96 \| good	0.217 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.325 \| fine	54.876 \| good	20.767 \| good	1.228 \| good	7.079 \| good	0.215 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	11.756 \| good	51.886 \| good	18.403 \| good	1.19 \| good	6.224 \| good	0.213 \| good
2026-10-24T07:00:00.000Z	52 \| moderate	10.446 \| good	45.884 \| good	14.702 \| good	1.166 \| good	5.844 \| good	0.211 \| good
2026-10-24T08:00:00.000Z	52 \| moderate	10.374 \| good	45.853 \| good	12.977 \| good	1.145 \| good	5.816 \| good	0.212 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	10.74 \| good	47.746 \| good	10.617 \| good	1.128 \| good	6.103 \| good	0.214 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	10.726 \| good	47.784 \| good	8.867 \| good	1.121 \| good	6.508 \| good	0.217 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	10.379 \| good	45.833 \| good	10.27 \| good	1.122 \| good	7.11 \| good	0.22 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.572 \| good	33.665 \| good	6.676 \| good	1.156 \| good	8.878 \| good	0.229 \| good
2026-10-24T13:00:00.000Z	44 \| good	7.903 \| good	34.757 \| good	7.625 \| good	1.215 \| good	11.118 \| good	0.248 \| good
2026-10-24T14:00:00.000Z	54 \| moderate	10.57 \| good	46.781 \| good	15.276 \| good	1.201 \| good	9.446 \| good	0.259 \| good
2026-10-24T15:00:00.000Z	52 \| moderate	9.99 \| good	44.81 \| good	20.421 \| good	1.291 \| good	6.604 \| good	0.235 \| good
2026-10-24T16:00:00.000Z	49 \| good	8.829 \| good	38.944 \| good	29.76 \| good	1.377 \| good	4.764 \| good	0.217 \| good
2026-10-24T17:00:00.000Z	35 \| good	5.818 \| good	25.004 \| good	38.135 \| good	1.448 \| good	3.219 \| good	0.198 \| good
2026-10-24T18:00:00.000Z	40 \| good	5.928 \| good	26.778 \| good	43.035 \| good	1.416 \| good	2.097 \| good	0.182 \| good
2026-10-24T19:00:00.000Z	44 \| good	7.817 \| good	34.014 \| good	48.485 \| good	1.378 \| good	1.624 \| good	0.173 \| good
2026-10-24T20:00:00.000Z	48 \| good	6.437 \| good	28.844 \| good	52.324 \| good	1.313 \| good	1.564 \| good	0.17 \| good
2026-10-24T21:00:00.000Z	47 \| good	5.465 \| good	23.154 \| good	51.396 \| good	1.243 \| good	1.663 \| good	0.168 \| good
2026-10-24T22:00:00.000Z	44 \| good	7.437 \| good	32.892 \| good	47.364 \| good	1.192 \| good	2.381 \| good	0.172 \| good

Current air quality index in Webster Groves, Missouri today

Common air pollutants in Webster Groves, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Real-time air quality map: Monitor AQI near Webster Groves, Missouri

Air quality in nearby cities

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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