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

Webster Groves, Missouri currently has a PM10 concentration of 9.257 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 0.357 ppb.

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

Webster Groves, Missouri currently has an ozone (O3) concentration of 26.13 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 3.972 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 1.771 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)

Good

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)

2.10 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

11.25 μg/m³

155

255

425

605+

Ozone (O₃)

31.30 ppb

201

201+

Sulfur Dioxide (SO₂)

0.32 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.17 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2026-01-21T16:00:00.000Z	52 \| moderate	9.952 \| good	41.637 \| good	28.258 \| good	1.824 \| good	8.182 \| good	0.266 \| good
2026-01-21T17:00:00.000Z	54 \| moderate	10.958 \| good	45.588 \| good	27.075 \| good	0.942 \| good	7.603 \| good	0.268 \| good
2026-01-21T18:00:00.000Z	52 \| moderate	9.925 \| good	41.114 \| good	29.571 \| good	1.031 \| good	7.075 \| good	0.266 \| good
2026-01-21T19:00:00.000Z	52 \| moderate	9.765 \| good	40.964 \| good	29.088 \| good	2.752 \| good	6.547 \| good	0.266 \| good
2026-01-21T20:00:00.000Z	49 \| good	8.708 \| good	37.951 \| good	29.48 \| good	0.654 \| good	5.886 \| good	0.266 \| good
2026-01-21T21:00:00.000Z	38 \| good	6.96 \| good	30.998 \| good	30.942 \| good	0.504 \| good	4.957 \| good	0.197 \| good
2026-01-21T22:00:00.000Z	31 \| good	5.288 \| good	23.714 \| good	32.989 \| good	0.524 \| good	5.444 \| good	0.199 \| good
2026-01-21T23:00:00.000Z	29 \| good	4.46 \| good	19.504 \| good	31.355 \| good	0.657 \| good	5.988 \| good	0.268 \| good
2026-01-22T00:00:00.000Z	30 \| good	3.753 \| good	16.975 \| good	31.71 \| good	1.496 \| good	8.288 \| good	0.268 \| good
2026-01-22T01:00:00.000Z	25 \| good	3.769 \| good	16.94 \| good	27.394 \| good	2.135 \| good	13.057 \| good	0.363 \| good
2026-01-22T02:00:00.000Z	25 \| good	3.205 \| good	13.582 \| good	27.066 \| good	0.855 \| good	16.607 \| good	0.335 \| good
2026-01-22T03:00:00.000Z	27 \| good	5.274 \| good	23.125 \| good	27.847 \| good	1.27 \| good	16.078 \| good	0.268 \| good
2026-01-22T04:00:00.000Z	25 \| good	4.439 \| good	18.598 \| good	26.689 \| good	0.935 \| good	6.914 \| good	0.199 \| good
2026-01-22T05:00:00.000Z	23 \| good	3.626 \| good	16.598 \| good	25.428 \| good	0.3 \| good	3.634 \| good	0.105 \| good
2026-01-22T06:00:00.000Z	24 \| good	2.419 \| good	12.917 \| good	26.455 \| good	0.259 \| good	3.161 \| good	0.102 \| good
2026-01-22T07:00:00.000Z	24 \| good	2.419 \| good	12.917 \| good	25.599 \| good	0.251 \| good	3.182 \| good	0.105 \| good
2026-01-22T08:00:00.000Z	22 \| good	2.419 \| good	12.917 \| good	23.624 \| good	0.251 \| good	3.206 \| good	0.105 \| good
2026-01-22T09:00:00.000Z	19 \| good	2.105 \| good	10.065 \| good	21.125 \| good	0.288 \| good	3.796 \| good	0.101 \| good
2026-01-22T10:00:00.000Z	20 \| good	1.039 \| good	8.635 \| good	21.763 \| good	0.244 \| good	6.761 \| good	0.101 \| good
2026-01-22T11:00:00.000Z	20 \| good	0.96 \| good	4.727 \| good	21.831 \| good	0.365 \| good	8.376 \| good	0.1 \| good
2026-01-22T12:00:00.000Z	16 \| good	1.702 \| good	8.574 \| good	17.417 \| good	0.633 \| good	15.633 \| good	0.265 \| good
2026-01-22T13:00:00.000Z	16 \| good	2.3 \| good	10.321 \| good	16.547 \| good	0.551 \| good	13.228 \| good	0.225 \| good
2026-01-22T14:00:00.000Z	19 \| good	2.275 \| good	9.568 \| good	15.875 \| good	0.633 \| good	20.242 \| good	0.535 \| good
2026-01-22T15:00:00.000Z	22 \| good	3.5 \| good	15.413 \| good	18.872 \| good	0.773 \| good	23.022 \| good	0.502 \| good
2026-01-22T16:00:00.000Z	22 \| good	3.046 \| good	12.5 \| good	23.8 \| good	0.722 \| good	19.137 \| good	0.363 \| good
2026-01-22T17:00:00.000Z	23 \| good	2.398 \| good	10.172 \| good	24.625 \| good	0.493 \| good	20.969 \| good	0.294 \| good
2026-01-22T18:00:00.000Z	26 \| good	2.458 \| good	11.15 \| good	27.549 \| good	0.503 \| good	9.163 \| good	0.197 \| good
2026-01-22T19:00:00.000Z	28 \| good	2.954 \| good	15.882 \| good	29.912 \| good	0.297 \| good	6.716 \| good	0.197 \| good
2026-01-22T20:00:00.000Z	29 \| good	1.139 \| good	5.105 \| good	31.264 \| good	0.298 \| good	6.947 \| good	0.197 \| good
2026-01-22T21:00:00.000Z	30 \| good	1.539 \| good	6.939 \| good	32.132 \| good	0.299 \| good	6.554 \| good	0.197 \| good
2026-01-22T22:00:00.000Z	30 \| good	1.316 \| good	5.833 \| good	32.268 \| good	0.355 \| good	6.529 \| good	0.197 \| good
2026-01-22T23:00:00.000Z	28 \| good	1.696 \| good	7.814 \| good	30.262 \| good	0.409 \| good	6.698 \| good	0.199 \| good
2026-01-23T00:00:00.000Z	26 \| good	3.188 \| good	14.786 \| good	28.064 \| good	0.385 \| good	11.722 \| good	0.226 \| good
2026-01-23T01:00:00.000Z	24 \| good	4.1 \| good	18.674 \| good	26.417 \| good	0.594 \| good	16.398 \| good	0.297 \| good
2026-01-23T02:00:00.000Z	27 \| good	5.403 \| good	25.413 \| good	18.484 \| good	0.695 \| good	18.76 \| good	0.327 \| good
2026-01-23T03:00:00.000Z	44 \| good	7.897 \| good	34.787 \| good	12.465 \| good	0.679 \| good	26.399 \| good	0.326 \| good
2026-01-23T04:00:00.000Z	49 \| good	9.292 \| good	41.686 \| good	11.262 \| good	0.764 \| good	35.82 \| good	0.518 \| good
2026-01-23T05:00:00.000Z	54 \| moderate	11.036 \| good	48.757 \| good	12.421 \| good	0.827 \| good	33.451 \| good	0.587 \| good
2026-01-23T06:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	13.848 \| good	0.674 \| good	23.199 \| good	0.396 \| good
2026-01-23T07:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	15.673 \| good	0.673 \| good	22.325 \| good	0.395 \| good
2026-01-23T08:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	15.878 \| good	0.672 \| good	21.489 \| good	0.394 \| good
2026-01-23T09:00:00.000Z	18 \| good	2.24 \| good	10.479 \| good	19.073 \| good	0.383 \| good	3.639 \| good	0.102 \| good
2026-01-23T10:00:00.000Z	19 \| good	2.786 \| good	12.615 \| good	19.801 \| good	0.434 \| good	3.472 \| good	0.17 \| good
2026-01-23T11:00:00.000Z	25 \| good	2.129 \| good	10.66 \| good	26.796 \| good	0.466 \| good	4.592 \| good	0.1 \| good
2026-01-23T12:00:00.000Z	24 \| good	1.771 \| good	9.257 \| good	26.13 \| good	0.357 \| good	3.972 \| good	0.1 \| good
2026-01-23T13:00:00.000Z	25 \| good	2.184 \| good	11.766 \| good	26.989 \| good	0.32 \| good	5.841 \| good	0.1 \| good
2026-01-23T14:00:00.000Z	29 \| good	2.097 \| good	11.249 \| good	31.302 \| good	0.32 \| good	8.574 \| good	0.169 \| good
2026-01-23T15:00:00.000Z	29 \| good	2.097 \| good	11.249 \| good	31.302 \| good	0.32 \| good	8.574 \| good	0.169 \| good
2026-01-23T14:00:00.000Z	22 \| good	3.699 \| good	16.6 \| good	22.387 \| good	0.474 \| good	1.744 \| good	0.145 \| good
2026-01-23T15:00:00.000Z	19 \| good	2.909 \| good	12.007 \| good	20.829 \| good	0.489 \| good	1.926 \| good	0.149 \| good
2026-01-23T16:00:00.000Z	19 \| good	3 \| good	12.093 \| good	19.554 \| good	0.514 \| good	1.768 \| good	0.148 \| good
2026-01-23T17:00:00.000Z	19 \| good	2.043 \| good	8.393 \| good	20.386 \| good	0.539 \| good	1.61 \| good	0.148 \| good
2026-01-23T18:00:00.000Z	19 \| good	3.265 \| good	13.961 \| good	21.035 \| good	0.563 \| good	1.452 \| good	0.147 \| good
2026-01-23T19:00:00.000Z	22 \| good	4.398 \| good	19.141 \| good	20.669 \| good	0.591 \| good	1.644 \| good	0.148 \| good
2026-01-23T20:00:00.000Z	27 \| good	4.645 \| good	20.162 \| good	18.793 \| good	0.618 \| good	1.836 \| good	0.149 \| good
2026-01-23T21:00:00.000Z	27 \| good	4.692 \| good	20.473 \| good	18.054 \| good	0.645 \| good	2.027 \| good	0.149 \| good
2026-01-23T22:00:00.000Z	18 \| good	2.601 \| good	10.756 \| good	18.603 \| good	0.667 \| good	2.659 \| good	0.151 \| good
2026-01-23T23:00:00.000Z	18 \| good	2.787 \| good	11.691 \| good	19.038 \| good	0.689 \| good	3.291 \| good	0.153 \| good
2026-01-24T00:00:00.000Z	14 \| good	2.035 \| good	8.295 \| good	15.106 \| good	0.71 \| good	3.923 \| good	0.155 \| good
2026-01-24T01:00:00.000Z	16 \| good	2.611 \| good	10.458 \| good	17.128 \| good	0.757 \| good	3.943 \| good	0.154 \| good
2026-01-24T02:00:00.000Z	22 \| good	3.807 \| good	16.578 \| good	14.376 \| good	0.804 \| good	3.963 \| good	0.154 \| good
2026-01-24T03:00:00.000Z	38 \| good	6.772 \| good	30.076 \| good	14.67 \| good	0.85 \| good	3.983 \| good	0.153 \| good
2026-01-24T04:00:00.000Z	33 \| good	5.674 \| good	24.412 \| good	14.799 \| good	0.882 \| good	3.846 \| good	0.152 \| good
2026-01-24T05:00:00.000Z	27 \| good	5.362 \| good	23.065 \| good	16.066 \| good	0.913 \| good	3.708 \| good	0.151 \| good
2026-01-24T06:00:00.000Z	22 \| good	4.293 \| good	19 \| good	16.693 \| good	0.945 \| good	3.57 \| good	0.151 \| good
2026-01-24T07:00:00.000Z	22 \| good	4.261 \| good	18.74 \| good	17.633 \| good	0.919 \| good	3.39 \| good	0.15 \| good
2026-01-24T08:00:00.000Z	22 \| good	3.866 \| good	17.056 \| good	18.519 \| good	0.894 \| good	3.21 \| good	0.15 \| good
2026-01-24T09:00:00.000Z	19 \| good	2.757 \| good	11.208 \| good	20.241 \| good	0.868 \| good	3.03 \| good	0.149 \| good
2026-01-24T10:00:00.000Z	20 \| good	2.955 \| good	12.152 \| good	21.553 \| good	0.821 \| good	2.944 \| good	0.15 \| good
2026-01-24T11:00:00.000Z	22 \| good	3.986 \| good	17.36 \| good	20.819 \| good	0.773 \| good	2.859 \| good	0.15 \| good
2026-01-24T12:00:00.000Z	27 \| good	4.542 \| good	19.511 \| good	19.171 \| good	0.726 \| good	2.774 \| good	0.15 \| good
2026-01-24T13:00:00.000Z	44 \| good	7.68 \| good	33.914 \| good	18.026 \| good	0.751 \| good	3.192 \| good	0.154 \| good
2026-01-24T14:00:00.000Z	38 \| good	7.33 \| good	32.074 \| good	15.163 \| good	0.776 \| good	3.61 \| good	0.158 \| good
2026-01-24T15:00:00.000Z	44 \| good	8.054 \| good	35.047 \| good	12.789 \| good	0.801 \| good	4.028 \| good	0.162 \| good
2026-01-24T16:00:00.000Z	38 \| good	7.24 \| good	32.032 \| good	14.483 \| good	0.863 \| good	3.885 \| good	0.162 \| good
2026-01-24T17:00:00.000Z	27 \| good	5.22 \| good	22.762 \| good	16.479 \| good	0.925 \| good	3.742 \| good	0.163 \| good
2026-01-24T18:00:00.000Z	38 \| good	6.654 \| good	29.544 \| good	19.361 \| good	0.987 \| good	3.598 \| good	0.164 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.815 \| good	34.14 \| good	20.001 \| good	1.016 \| good	3.872 \| good	0.167 \| good
2026-01-24T20:00:00.000Z	49 \| good	8.759 \| good	38.631 \| good	19.999 \| good	1.046 \| good	4.146 \| good	0.169 \| good
2026-01-24T21:00:00.000Z	49 \| good	9.005 \| good	39.736 \| good	22.316 \| good	1.075 \| good	4.42 \| good	0.172 \| good
2026-01-24T22:00:00.000Z	33 \| good	5.931 \| good	26.324 \| good	25.267 \| good	1.03 \| good	5.296 \| good	0.175 \| good
2026-01-24T23:00:00.000Z	27 \| good	5.091 \| good	21.844 \| good	24.117 \| good	0.986 \| good	6.173 \| good	0.178 \| good
2026-01-25T00:00:00.000Z	23 \| good	3.941 \| good	17.189 \| good	24.987 \| good	0.941 \| good	7.049 \| good	0.182 \| good
2026-01-25T01:00:00.000Z	22 \| good	4.04 \| good	17.914 \| good	23.044 \| good	0.896 \| good	6.966 \| good	0.181 \| good
2026-01-25T02:00:00.000Z	33 \| good	5.788 \| good	25.163 \| good	20.041 \| good	0.852 \| good	6.883 \| good	0.181 \| good
2026-01-25T03:00:00.000Z	52 \| moderate	9.516 \| good	42.628 \| good	18.308 \| good	0.807 \| good	6.8 \| good	0.18 \| good
2026-01-25T04:00:00.000Z	49 \| good	8.833 \| good	38.67 \| good	16.588 \| good	0.751 \| good	6.4 \| good	0.179 \| good
2026-01-25T05:00:00.000Z	44 \| good	8.13 \| good	35.607 \| good	15.703 \| good	0.695 \| good	6.001 \| good	0.178 \| good
2026-01-25T06:00:00.000Z	38 \| good	7.021 \| good	7.283 \| good	24.263 \| good	0.633 \| good	5.581 \| good	0.177 \| good
2026-01-25T07:00:00.000Z	52 \| moderate	9.795 \| good	43.64 \| good	17.738 \| good	0.604 \| good	5.163 \| good	0.176 \| good
2026-01-25T08:00:00.000Z	49 \| good	9.383 \| good	41.914 \| good	17.559 \| good	0.568 \| good	4.724 \| good	0.175 \| good
2026-01-25T09:00:00.000Z	49 \| good	9.066 \| good	40.352 \| good	16.107 \| good	0.533 \| good	4.285 \| good	0.173 \| good
2026-01-25T10:00:00.000Z	44 \| good	8.227 \| good	36.11 \| good	15.425 \| good	0.532 \| good	4.172 \| good	0.173 \| good
2026-01-25T11:00:00.000Z	49 \| good	8.977 \| good	39.528 \| good	17.014 \| good	0.531 \| good	4.058 \| good	0.174 \| good
2026-01-25T12:00:00.000Z	38 \| good	6.878 \| good	7.1 \| good	25.151 \| good	0.529 \| good	3.942 \| good	0.174 \| good
2026-01-25T13:00:00.000Z	44 \| good	7.534 \| good	7.765 \| good	24.911 \| good	0.585 \| good	4.139 \| good	0.182 \| good

Webster Groves

Empower business decisions with accurate air quality data

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

0.10ppm

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 05:00:00, 2026-01-23.

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 01:00:00 on 2026-01-22.

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

The air quality in Webster Groves, Missouri right now is Good, with an AQI of 24.

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 1.771 μg/m³.

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

Webster Groves, Missouri currently has a PM₁₀ concentration of 9.257 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 0.1 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 0.357 ppb.

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

Webster Groves, Missouri currently has an ozone (O₃) concentration of 26.13 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 3.972 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T16:00:00.000Z	52 \| moderate	9.952 \| good	41.637 \| good	28.258 \| good	1.824 \| good	8.182 \| good	0.266 \| good
2026-01-21T17:00:00.000Z	54 \| moderate	10.958 \| good	45.588 \| good	27.075 \| good	0.942 \| good	7.603 \| good	0.268 \| good
2026-01-21T18:00:00.000Z	52 \| moderate	9.925 \| good	41.114 \| good	29.571 \| good	1.031 \| good	7.075 \| good	0.266 \| good
2026-01-21T19:00:00.000Z	52 \| moderate	9.765 \| good	40.964 \| good	29.088 \| good	2.752 \| good	6.547 \| good	0.266 \| good
2026-01-21T20:00:00.000Z	49 \| good	8.708 \| good	37.951 \| good	29.48 \| good	0.654 \| good	5.886 \| good	0.266 \| good
2026-01-21T21:00:00.000Z	38 \| good	6.96 \| good	30.998 \| good	30.942 \| good	0.504 \| good	4.957 \| good	0.197 \| good
2026-01-21T22:00:00.000Z	31 \| good	5.288 \| good	23.714 \| good	32.989 \| good	0.524 \| good	5.444 \| good	0.199 \| good
2026-01-21T23:00:00.000Z	29 \| good	4.46 \| good	19.504 \| good	31.355 \| good	0.657 \| good	5.988 \| good	0.268 \| good
2026-01-22T00:00:00.000Z	30 \| good	3.753 \| good	16.975 \| good	31.71 \| good	1.496 \| good	8.288 \| good	0.268 \| good
2026-01-22T01:00:00.000Z	25 \| good	3.769 \| good	16.94 \| good	27.394 \| good	2.135 \| good	13.057 \| good	0.363 \| good
2026-01-22T02:00:00.000Z	25 \| good	3.205 \| good	13.582 \| good	27.066 \| good	0.855 \| good	16.607 \| good	0.335 \| good
2026-01-22T03:00:00.000Z	27 \| good	5.274 \| good	23.125 \| good	27.847 \| good	1.27 \| good	16.078 \| good	0.268 \| good
2026-01-22T04:00:00.000Z	25 \| good	4.439 \| good	18.598 \| good	26.689 \| good	0.935 \| good	6.914 \| good	0.199 \| good
2026-01-22T05:00:00.000Z	23 \| good	3.626 \| good	16.598 \| good	25.428 \| good	0.3 \| good	3.634 \| good	0.105 \| good
2026-01-22T06:00:00.000Z	24 \| good	2.419 \| good	12.917 \| good	26.455 \| good	0.259 \| good	3.161 \| good	0.102 \| good
2026-01-22T07:00:00.000Z	24 \| good	2.419 \| good	12.917 \| good	25.599 \| good	0.251 \| good	3.182 \| good	0.105 \| good
2026-01-22T08:00:00.000Z	22 \| good	2.419 \| good	12.917 \| good	23.624 \| good	0.251 \| good	3.206 \| good	0.105 \| good
2026-01-22T09:00:00.000Z	19 \| good	2.105 \| good	10.065 \| good	21.125 \| good	0.288 \| good	3.796 \| good	0.101 \| good
2026-01-22T10:00:00.000Z	20 \| good	1.039 \| good	8.635 \| good	21.763 \| good	0.244 \| good	6.761 \| good	0.101 \| good
2026-01-22T11:00:00.000Z	20 \| good	0.96 \| good	4.727 \| good	21.831 \| good	0.365 \| good	8.376 \| good	0.1 \| good
2026-01-22T12:00:00.000Z	16 \| good	1.702 \| good	8.574 \| good	17.417 \| good	0.633 \| good	15.633 \| good	0.265 \| good
2026-01-22T13:00:00.000Z	16 \| good	2.3 \| good	10.321 \| good	16.547 \| good	0.551 \| good	13.228 \| good	0.225 \| good
2026-01-22T14:00:00.000Z	19 \| good	2.275 \| good	9.568 \| good	15.875 \| good	0.633 \| good	20.242 \| good	0.535 \| good
2026-01-22T15:00:00.000Z	22 \| good	3.5 \| good	15.413 \| good	18.872 \| good	0.773 \| good	23.022 \| good	0.502 \| good
2026-01-22T16:00:00.000Z	22 \| good	3.046 \| good	12.5 \| good	23.8 \| good	0.722 \| good	19.137 \| good	0.363 \| good
2026-01-22T17:00:00.000Z	23 \| good	2.398 \| good	10.172 \| good	24.625 \| good	0.493 \| good	20.969 \| good	0.294 \| good
2026-01-22T18:00:00.000Z	26 \| good	2.458 \| good	11.15 \| good	27.549 \| good	0.503 \| good	9.163 \| good	0.197 \| good
2026-01-22T19:00:00.000Z	28 \| good	2.954 \| good	15.882 \| good	29.912 \| good	0.297 \| good	6.716 \| good	0.197 \| good
2026-01-22T20:00:00.000Z	29 \| good	1.139 \| good	5.105 \| good	31.264 \| good	0.298 \| good	6.947 \| good	0.197 \| good
2026-01-22T21:00:00.000Z	30 \| good	1.539 \| good	6.939 \| good	32.132 \| good	0.299 \| good	6.554 \| good	0.197 \| good
2026-01-22T22:00:00.000Z	30 \| good	1.316 \| good	5.833 \| good	32.268 \| good	0.355 \| good	6.529 \| good	0.197 \| good
2026-01-22T23:00:00.000Z	28 \| good	1.696 \| good	7.814 \| good	30.262 \| good	0.409 \| good	6.698 \| good	0.199 \| good
2026-01-23T00:00:00.000Z	26 \| good	3.188 \| good	14.786 \| good	28.064 \| good	0.385 \| good	11.722 \| good	0.226 \| good
2026-01-23T01:00:00.000Z	24 \| good	4.1 \| good	18.674 \| good	26.417 \| good	0.594 \| good	16.398 \| good	0.297 \| good
2026-01-23T02:00:00.000Z	27 \| good	5.403 \| good	25.413 \| good	18.484 \| good	0.695 \| good	18.76 \| good	0.327 \| good
2026-01-23T03:00:00.000Z	44 \| good	7.897 \| good	34.787 \| good	12.465 \| good	0.679 \| good	26.399 \| good	0.326 \| good
2026-01-23T04:00:00.000Z	49 \| good	9.292 \| good	41.686 \| good	11.262 \| good	0.764 \| good	35.82 \| good	0.518 \| good
2026-01-23T05:00:00.000Z	54 \| moderate	11.036 \| good	48.757 \| good	12.421 \| good	0.827 \| good	33.451 \| good	0.587 \| good
2026-01-23T06:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	13.848 \| good	0.674 \| good	23.199 \| good	0.396 \| good
2026-01-23T07:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	15.673 \| good	0.673 \| good	22.325 \| good	0.395 \| good
2026-01-23T08:00:00.000Z	52 \| moderate	10.031 \| good	43.582 \| good	15.878 \| good	0.672 \| good	21.489 \| good	0.394 \| good
2026-01-23T09:00:00.000Z	18 \| good	2.24 \| good	10.479 \| good	19.073 \| good	0.383 \| good	3.639 \| good	0.102 \| good
2026-01-23T10:00:00.000Z	19 \| good	2.786 \| good	12.615 \| good	19.801 \| good	0.434 \| good	3.472 \| good	0.17 \| good
2026-01-23T11:00:00.000Z	25 \| good	2.129 \| good	10.66 \| good	26.796 \| good	0.466 \| good	4.592 \| good	0.1 \| good
2026-01-23T12:00:00.000Z	24 \| good	1.771 \| good	9.257 \| good	26.13 \| good	0.357 \| good	3.972 \| good	0.1 \| good
2026-01-23T13:00:00.000Z	25 \| good	2.184 \| good	11.766 \| good	26.989 \| good	0.32 \| good	5.841 \| good	0.1 \| good
2026-01-23T14:00:00.000Z	29 \| good	2.097 \| good	11.249 \| good	31.302 \| good	0.32 \| good	8.574 \| good	0.169 \| good
2026-01-23T15:00:00.000Z	29 \| good	2.097 \| good	11.249 \| good	31.302 \| good	0.32 \| good	8.574 \| good	0.169 \| good
2026-01-23T14:00:00.000Z	22 \| good	3.699 \| good	16.6 \| good	22.387 \| good	0.474 \| good	1.744 \| good	0.145 \| good
2026-01-23T15:00:00.000Z	19 \| good	2.909 \| good	12.007 \| good	20.829 \| good	0.489 \| good	1.926 \| good	0.149 \| good
2026-01-23T16:00:00.000Z	19 \| good	3 \| good	12.093 \| good	19.554 \| good	0.514 \| good	1.768 \| good	0.148 \| good
2026-01-23T17:00:00.000Z	19 \| good	2.043 \| good	8.393 \| good	20.386 \| good	0.539 \| good	1.61 \| good	0.148 \| good
2026-01-23T18:00:00.000Z	19 \| good	3.265 \| good	13.961 \| good	21.035 \| good	0.563 \| good	1.452 \| good	0.147 \| good
2026-01-23T19:00:00.000Z	22 \| good	4.398 \| good	19.141 \| good	20.669 \| good	0.591 \| good	1.644 \| good	0.148 \| good
2026-01-23T20:00:00.000Z	27 \| good	4.645 \| good	20.162 \| good	18.793 \| good	0.618 \| good	1.836 \| good	0.149 \| good
2026-01-23T21:00:00.000Z	27 \| good	4.692 \| good	20.473 \| good	18.054 \| good	0.645 \| good	2.027 \| good	0.149 \| good
2026-01-23T22:00:00.000Z	18 \| good	2.601 \| good	10.756 \| good	18.603 \| good	0.667 \| good	2.659 \| good	0.151 \| good
2026-01-23T23:00:00.000Z	18 \| good	2.787 \| good	11.691 \| good	19.038 \| good	0.689 \| good	3.291 \| good	0.153 \| good
2026-01-24T00:00:00.000Z	14 \| good	2.035 \| good	8.295 \| good	15.106 \| good	0.71 \| good	3.923 \| good	0.155 \| good
2026-01-24T01:00:00.000Z	16 \| good	2.611 \| good	10.458 \| good	17.128 \| good	0.757 \| good	3.943 \| good	0.154 \| good
2026-01-24T02:00:00.000Z	22 \| good	3.807 \| good	16.578 \| good	14.376 \| good	0.804 \| good	3.963 \| good	0.154 \| good
2026-01-24T03:00:00.000Z	38 \| good	6.772 \| good	30.076 \| good	14.67 \| good	0.85 \| good	3.983 \| good	0.153 \| good
2026-01-24T04:00:00.000Z	33 \| good	5.674 \| good	24.412 \| good	14.799 \| good	0.882 \| good	3.846 \| good	0.152 \| good
2026-01-24T05:00:00.000Z	27 \| good	5.362 \| good	23.065 \| good	16.066 \| good	0.913 \| good	3.708 \| good	0.151 \| good
2026-01-24T06:00:00.000Z	22 \| good	4.293 \| good	19 \| good	16.693 \| good	0.945 \| good	3.57 \| good	0.151 \| good
2026-01-24T07:00:00.000Z	22 \| good	4.261 \| good	18.74 \| good	17.633 \| good	0.919 \| good	3.39 \| good	0.15 \| good
2026-01-24T08:00:00.000Z	22 \| good	3.866 \| good	17.056 \| good	18.519 \| good	0.894 \| good	3.21 \| good	0.15 \| good
2026-01-24T09:00:00.000Z	19 \| good	2.757 \| good	11.208 \| good	20.241 \| good	0.868 \| good	3.03 \| good	0.149 \| good
2026-01-24T10:00:00.000Z	20 \| good	2.955 \| good	12.152 \| good	21.553 \| good	0.821 \| good	2.944 \| good	0.15 \| good
2026-01-24T11:00:00.000Z	22 \| good	3.986 \| good	17.36 \| good	20.819 \| good	0.773 \| good	2.859 \| good	0.15 \| good
2026-01-24T12:00:00.000Z	27 \| good	4.542 \| good	19.511 \| good	19.171 \| good	0.726 \| good	2.774 \| good	0.15 \| good
2026-01-24T13:00:00.000Z	44 \| good	7.68 \| good	33.914 \| good	18.026 \| good	0.751 \| good	3.192 \| good	0.154 \| good
2026-01-24T14:00:00.000Z	38 \| good	7.33 \| good	32.074 \| good	15.163 \| good	0.776 \| good	3.61 \| good	0.158 \| good
2026-01-24T15:00:00.000Z	44 \| good	8.054 \| good	35.047 \| good	12.789 \| good	0.801 \| good	4.028 \| good	0.162 \| good
2026-01-24T16:00:00.000Z	38 \| good	7.24 \| good	32.032 \| good	14.483 \| good	0.863 \| good	3.885 \| good	0.162 \| good
2026-01-24T17:00:00.000Z	27 \| good	5.22 \| good	22.762 \| good	16.479 \| good	0.925 \| good	3.742 \| good	0.163 \| good
2026-01-24T18:00:00.000Z	38 \| good	6.654 \| good	29.544 \| good	19.361 \| good	0.987 \| good	3.598 \| good	0.164 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.815 \| good	34.14 \| good	20.001 \| good	1.016 \| good	3.872 \| good	0.167 \| good
2026-01-24T20:00:00.000Z	49 \| good	8.759 \| good	38.631 \| good	19.999 \| good	1.046 \| good	4.146 \| good	0.169 \| good
2026-01-24T21:00:00.000Z	49 \| good	9.005 \| good	39.736 \| good	22.316 \| good	1.075 \| good	4.42 \| good	0.172 \| good
2026-01-24T22:00:00.000Z	33 \| good	5.931 \| good	26.324 \| good	25.267 \| good	1.03 \| good	5.296 \| good	0.175 \| good
2026-01-24T23:00:00.000Z	27 \| good	5.091 \| good	21.844 \| good	24.117 \| good	0.986 \| good	6.173 \| good	0.178 \| good
2026-01-25T00:00:00.000Z	23 \| good	3.941 \| good	17.189 \| good	24.987 \| good	0.941 \| good	7.049 \| good	0.182 \| good
2026-01-25T01:00:00.000Z	22 \| good	4.04 \| good	17.914 \| good	23.044 \| good	0.896 \| good	6.966 \| good	0.181 \| good
2026-01-25T02:00:00.000Z	33 \| good	5.788 \| good	25.163 \| good	20.041 \| good	0.852 \| good	6.883 \| good	0.181 \| good
2026-01-25T03:00:00.000Z	52 \| moderate	9.516 \| good	42.628 \| good	18.308 \| good	0.807 \| good	6.8 \| good	0.18 \| good
2026-01-25T04:00:00.000Z	49 \| good	8.833 \| good	38.67 \| good	16.588 \| good	0.751 \| good	6.4 \| good	0.179 \| good
2026-01-25T05:00:00.000Z	44 \| good	8.13 \| good	35.607 \| good	15.703 \| good	0.695 \| good	6.001 \| good	0.178 \| good
2026-01-25T06:00:00.000Z	38 \| good	7.021 \| good	7.283 \| good	24.263 \| good	0.633 \| good	5.581 \| good	0.177 \| good
2026-01-25T07:00:00.000Z	52 \| moderate	9.795 \| good	43.64 \| good	17.738 \| good	0.604 \| good	5.163 \| good	0.176 \| good
2026-01-25T08:00:00.000Z	49 \| good	9.383 \| good	41.914 \| good	17.559 \| good	0.568 \| good	4.724 \| good	0.175 \| good
2026-01-25T09:00:00.000Z	49 \| good	9.066 \| good	40.352 \| good	16.107 \| good	0.533 \| good	4.285 \| good	0.173 \| good
2026-01-25T10:00:00.000Z	44 \| good	8.227 \| good	36.11 \| good	15.425 \| good	0.532 \| good	4.172 \| good	0.173 \| good
2026-01-25T11:00:00.000Z	49 \| good	8.977 \| good	39.528 \| good	17.014 \| good	0.531 \| good	4.058 \| good	0.174 \| good
2026-01-25T12:00:00.000Z	38 \| good	6.878 \| good	7.1 \| good	25.151 \| good	0.529 \| good	3.942 \| good	0.174 \| good
2026-01-25T13:00:00.000Z	44 \| good	7.534 \| good	7.765 \| good	24.911 \| good	0.585 \| good	4.139 \| good	0.182 \| 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

Kirkwood, Missouri

Crestwood, Missouri

Affton, Missouri

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University City, Missouri

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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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