What is the current level of PM10 in St. Peters, Missouri?

St. Peters, Missouri currently has a PM10 concentration of 44.611 μg/m3.

What is the current level of sulfur dioxide (SO2) in St. Peters, Missouri?

The current sulfur dioxide (SO2) concentration in St. Peters, Missouri is 0.536 ppb.

What is the current level of ozone (O3) in St. Peters, Missouri?

St. Peters, Missouri currently has an ozone (O3) concentration of 39.032 ppm.

What is the current level of nitrogen dioxide (NO2) in St. Peters, Missouri?

The current level of nitrogen dioxide (NO2) in St. Peters, Missouri is 6.192 ppb.

Current air quality index in St. Peters, Missouri today

Name: Live air pollution levels in St. Peters, Missouri today
Creator: Ambee

Stay updated with real-time air quality in St. Peters, 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

St. Peters, Missouri

Last updated: ... (Local time)

Major air pollutants in St. Peters, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

13.85 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.61 μg/m³

155

255

425

605+

Ozone (O₃)

39.03 ppb

201

201+

Sulfur Dioxide (SO₂)

0.54 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.19 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

St. Peters, Missouri

Get Live Pollen Counts

St. Peters, Missouri

Scroll To Air Quality Map

Track live St. Peters, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T22:00:00.000Z	64 \| moderate	16.219 \| fine	53.128 \| good	57.01 \| fine	1.054 \| good	5.722 \| good	0.245 \| good
2025-06-02T23:00:00.000Z	58 \| moderate	12.757 \| fine	37.726 \| good	52.316 \| good	0.849 \| good	5.293 \| good	0.291 \| good
2025-06-03T00:00:00.000Z	58 \| moderate	13.485 \| fine	41.04 \| good	49.273 \| good	0.65 \| good	5.333 \| good	0.291 \| good
2025-06-03T01:00:00.000Z	62 \| moderate	14.575 \| fine	48.565 \| good	48.195 \| good	0.759 \| good	5.517 \| good	0.297 \| good
2025-06-03T02:00:00.000Z	58 \| moderate	13.003 \| fine	28.876 \| good	41.832 \| good	0.785 \| good	7.407 \| good	0.25 \| good
2025-06-03T03:00:00.000Z	38 \| good	7.5 \| good	26.438 \| good	38.645 \| good	0.874 \| good	7.127 \| good	0.25 \| good
2025-06-03T04:00:00.000Z	44 \| good	7.647 \| good	26.174 \| good	42.287 \| good	1.274 \| good	6.126 \| good	0.25 \| good
2025-06-03T05:00:00.000Z	49 \| good	8.653 \| good	38.556 \| good	36.393 \| good	0.794 \| good	6.84 \| good	0.245 \| good
2025-06-03T06:00:00.000Z	52 \| moderate	10.234 \| good	48.335 \| good	40.305 \| good	0.924 \| good	7.432 \| good	0.25 \| good
2025-06-03T07:00:00.000Z	52 \| moderate	9.583 \| good	24.837 \| good	31.932 \| good	0.723 \| good	7.8 \| good	0.256 \| good
2025-06-03T08:00:00.000Z	54 \| moderate	11.271 \| good	40.276 \| good	32.57 \| good	0.858 \| good	7.798 \| good	0.245 \| good
2025-06-03T09:00:00.000Z	49 \| good	8.522 \| good	45.272 \| good	28.04 \| good	0.897 \| good	6.088 \| good	0.209 \| good
2025-06-03T10:00:00.000Z	52 \| moderate	9.531 \| good	37.5 \| good	23.126 \| good	1.028 \| good	6.875 \| good	0.163 \| good
2025-06-03T11:00:00.000Z	52 \| moderate	9.708 \| good	33.663 \| good	34.099 \| good	0.955 \| good	10.592 \| good	0.209 \| good
2025-06-03T12:00:00.000Z	49 \| good	9.302 \| good	42.045 \| good	31.375 \| good	1.002 \| good	10.594 \| good	0.215 \| good
2025-06-03T13:00:00.000Z	45 \| good	8.465 \| good	48.78 \| good	30.49 \| good	0.53 \| good	10.516 \| good	0.297 \| good
2025-06-03T14:00:00.000Z	58 \| moderate	10.354 \| good	68.833 \| fine	32.574 \| good	0.866 \| good	7.385 \| good	0.261 \| good
2025-06-03T15:00:00.000Z	54 \| moderate	11.485 \| good	51.424 \| good	34.092 \| good	1.016 \| good	5.235 \| good	0.25 \| good
2025-06-03T16:00:00.000Z	61 \| moderate	13.858 \| fine	75.697 \| fine	38.019 \| good	0.501 \| good	4.611 \| good	0.245 \| good
2025-06-03T17:00:00.000Z	76 \| moderate	14.585 \| fine	105.127 \| fine	39.829 \| good	0.475 \| good	4.519 \| good	0.245 \| good
2025-06-03T18:00:00.000Z	59 \| moderate	13.249 \| fine	71.851 \| fine	42.124 \| good	0.424 \| good	3.957 \| good	0.245 \| good
2025-06-03T19:00:00.000Z	64 \| moderate	15.607 \| fine	66.455 \| fine	47.418 \| good	0.703 \| good	4.506 \| good	0.245 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	16.1 \| fine	72.339 \| fine	43.815 \| good	0.715 \| good	4.688 \| good	0.239 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.37 \| fine	66.043 \| fine	41.113 \| good	0.701 \| good	3.959 \| good	0.297 \| good
2025-06-03T22:00:00.000Z	66 \| moderate	16.76 \| fine	70.439 \| fine	41.801 \| good	0.721 \| good	3.732 \| good	0.244 \| good
2025-06-03T23:00:00.000Z	60 \| moderate	13.916 \| fine	50.578 \| good	43.435 \| good	0.444 \| good	4.536 \| good	0.245 \| good
2025-06-04T00:00:00.000Z	52 \| moderate	10.457 \| good	33.046 \| good	42.187 \| good	0.711 \| good	3.736 \| good	0.25 \| good
2025-06-04T01:00:00.000Z	56 \| moderate	11.949 \| good	43.308 \| good	43.272 \| good	0.708 \| good	4.101 \| good	0.244 \| good
2025-06-04T02:00:00.000Z	54 \| moderate	11.456 \| good	42.213 \| good	42.581 \| good	0.665 \| good	5.305 \| good	0.25 \| good
2025-06-04T03:00:00.000Z	44 \| good	7.087 \| good	31.002 \| good	46.786 \| good	0.509 \| good	2.802 \| good	0.226 \| good
2025-06-04T04:00:00.000Z	60 \| moderate	14.058 \| fine	59.47 \| fine	39.159 \| good	0.798 \| good	6.614 \| good	0.244 \| good
2025-06-04T05:00:00.000Z	60 \| moderate	13.692 \| fine	37.315 \| good	36.468 \| good	0.607 \| good	8.231 \| good	0.281 \| good
2025-06-04T06:00:00.000Z	60 \| moderate	14.066 \| fine	55.16 \| fine	40.727 \| good	0.697 \| good	6.243 \| good	0.275 \| good
2025-06-04T07:00:00.000Z	54 \| moderate	11.458 \| good	38.142 \| good	38.385 \| good	0.676 \| good	6.119 \| good	0.281 \| good
2025-06-04T08:00:00.000Z	49 \| good	8.636 \| good	17.619 \| good	40.673 \| good	0.685 \| good	6.146 \| good	0.276 \| good
2025-06-04T09:00:00.000Z	35 \| good	4.761 \| good	32.842 \| good	37.842 \| good	0.76 \| good	3.068 \| good	0.148 \| good
2025-06-04T10:00:00.000Z	39 \| good	2.651 \| good	9.813 \| good	41.795 \| good	0.499 \| good	4.483 \| good	0.194 \| good
2025-06-04T11:00:00.000Z	36 \| good	2.651 \| good	10.728 \| good	38.617 \| good	0.36 \| good	9.219 \| good	0.205 \| good
2025-06-04T12:00:00.000Z	38 \| good	2.317 \| good	24.36 \| good	40.977 \| good	0.659 \| good	12.305 \| good	0.276 \| good
2025-06-04T13:00:00.000Z	38 \| good	7.148 \| good	31.974 \| good	37.315 \| good	0.254 \| good	2.023 \| good	0.192 \| good
2025-06-04T14:00:00.000Z	34 \| good	4.777 \| good	23.121 \| good	36.608 \| good	0.61 \| good	18.915 \| good	0.352 \| good
2025-06-04T15:00:00.000Z	41 \| good	3.93 \| good	30.217 \| good	44.105 \| good	0.684 \| good	15.807 \| good	0.351 \| good
2025-06-04T16:00:00.000Z	35 \| good	3.005 \| good	31.041 \| good	38.232 \| good	0.41 \| good	10.672 \| good	0.328 \| good
2025-06-04T17:00:00.000Z	32 \| good	3.873 \| good	18.02 \| good	34.989 \| good	0.443 \| good	7.187 \| good	0.322 \| good
2025-06-04T18:00:00.000Z	31 \| good	4.924 \| good	12.903 \| good	33.024 \| good	0.555 \| good	5.062 \| good	0.287 \| good
2025-06-04T19:00:00.000Z	49 \| good	8.946 \| good	39.237 \| good	32.686 \| good	0.505 \| good	5.045 \| good	0.297 \| good
2025-06-04T20:00:00.000Z	60 \| moderate	13.851 \| fine	44.611 \| good	39.032 \| good	0.536 \| good	6.192 \| good	0.316 \| good
2025-06-04T21:00:00.000Z	60 \| moderate	14.349 \| fine	54.192 \| good	36.117 \| good	0.432 \| good	5.913 \| good	0.275 \| good
2025-06-04T21:00:00.000Z	60 \| moderate	13.851 \| fine	44.611 \| good	39.032 \| good	0.536 \| good	6.192 \| good	0.316 \| good
2025-06-04T22:00:00.000Z	88 \| moderate	28.828 \| fine	124.928 \| fine	44.141 \| good	0.185 \| good	2.108 \| good	0.195 \| good
2025-06-04T23:00:00.000Z	82 \| moderate	26.178 \| fine	113.024 \| fine	45.932 \| good	0.248 \| good	2.658 \| good	0.203 \| good
2025-06-05T00:00:00.000Z	88 \| moderate	28.861 \| fine	124.968 \| fine	44.691 \| good	0.312 \| good	3.207 \| good	0.21 \| good
2025-06-05T01:00:00.000Z	86 \| moderate	27.998 \| fine	121.005 \| fine	38.884 \| good	0.262 \| good	4.936 \| good	0.219 \| good
2025-06-05T02:00:00.000Z	90 \| moderate	30.256 \| fine	130.938 \| fine	37.505 \| good	0.338 \| good	6.384 \| good	0.234 \| good
2025-06-05T03:00:00.000Z	96 \| moderate	33.476 \| fine	144.99 \| fine	35.996 \| good	0.414 \| good	7.833 \| good	0.249 \| good
2025-06-05T04:00:00.000Z	102 \| sensitive	35.841 \| moderate	156.958 \| moderate	38.194 \| good	0.392 \| good	3.962 \| good	0.215 \| good
2025-06-05T05:00:00.000Z	110 \| sensitive	38.732 \| moderate	170.925 \| moderate	38.397 \| good	0.464 \| good	4.68 \| good	0.223 \| good
2025-06-05T06:00:00.000Z	115 \| sensitive	41.132 \| moderate	182.989 \| moderate	37.823 \| good	0.536 \| good	5.399 \| good	0.231 \| good
2025-06-05T07:00:00.000Z	118 \| sensitive	42.422 \| moderate	188.986 \| moderate	33.912 \| good	0.62 \| good	3.733 \| good	0.213 \| good
2025-06-05T08:00:00.000Z	119 \| sensitive	42.583 \| moderate	189.059 \| moderate	31.411 \| good	0.691 \| good	4.12 \| good	0.218 \| good
2025-06-05T09:00:00.000Z	107 \| sensitive	37.78 \| moderate	165.1 \| moderate	28.651 \| good	0.762 \| good	4.507 \| good	0.223 \| good
2025-06-05T10:00:00.000Z	107 \| sensitive	37.798 \| moderate	165.149 \| moderate	26.914 \| good	0.758 \| good	3.448 \| good	0.207 \| good
2025-06-05T11:00:00.000Z	105 \| sensitive	37.119 \| moderate	162.777 \| moderate	25.058 \| good	0.822 \| good	3.758 \| good	0.211 \| good
2025-06-05T12:00:00.000Z	99 \| moderate	34.586 \| fine	148.94 \| fine	28.371 \| good	0.887 \| good	4.067 \| good	0.215 \| good
2025-06-05T13:00:00.000Z	102 \| sensitive	35.544 \| moderate	154.988 \| fine	31.194 \| good	0.955 \| good	1.852 \| good	0.203 \| good
2025-06-05T14:00:00.000Z	105 \| sensitive	37.154 \| moderate	163.016 \| moderate	31.911 \| good	1.024 \| good	2.164 \| good	0.208 \| good
2025-06-05T15:00:00.000Z	100 \| moderate	35.256 \| fine	153.998 \| fine	34.865 \| good	1.093 \| good	2.475 \| good	0.213 \| good
2025-06-05T16:00:00.000Z	96 \| moderate	32.662 \| fine	141.049 \| fine	38.494 \| good	0.625 \| good	0.883 \| good	0.173 \| good
2025-06-05T17:00:00.000Z	90 \| moderate	29.8 \| fine	129.127 \| fine	40.092 \| good	0.698 \| good	1.021 \| good	0.177 \| good
2025-06-05T18:00:00.000Z	86 \| moderate	28.039 \| fine	121.199 \| fine	39.844 \| good	0.77 \| good	1.16 \| good	0.181 \| good
2025-06-05T19:00:00.000Z	84 \| moderate	27.24 \| fine	119.026 \| fine	39.348 \| good	0.386 \| good	0.795 \| good	0.167 \| good
2025-06-05T20:00:00.000Z	88 \| moderate	28.508 \| fine	123.1 \| fine	39.425 \| good	0.465 \| good	0.906 \| good	0.17 \| good
2025-06-05T21:00:00.000Z	81 \| moderate	25.009 \| fine	109.082 \| fine	42.221 \| good	0.543 \| good	1.018 \| good	0.172 \| good
2025-06-05T22:00:00.000Z	75 \| moderate	21.973 \| fine	97.073 \| fine	43.466 \| good	0.317 \| good	2.474 \| good	0.185 \| good
2025-06-05T23:00:00.000Z	69 \| moderate	18.619 \| fine	81.255 \| fine	44.027 \| good	0.389 \| good	2.862 \| good	0.19 \| good
2025-06-06T00:00:00.000Z	71 \| moderate	19.651 \| fine	86.972 \| fine	47.662 \| good	0.462 \| good	3.25 \| good	0.195 \| good
2025-06-06T01:00:00.000Z	66 \| moderate	17.376 \| fine	77.026 \| fine	40.053 \| good	0.454 \| good	7.715 \| good	0.247 \| good
2025-06-06T02:00:00.000Z	69 \| moderate	18.971 \| fine	83.035 \| fine	34.866 \| good	0.533 \| good	9.118 \| good	0.26 \| good
2025-06-06T03:00:00.000Z	77 \| moderate	22.747 \| fine	98.946 \| fine	28.551 \| good	0.612 \| good	10.52 \| good	0.273 \| good
2025-06-06T04:00:00.000Z	81 \| moderate	24.777 \| fine	108.791 \| fine	24.994 \| good	0.615 \| good	12.079 \| good	0.294 \| good
2025-06-06T05:00:00.000Z	79 \| moderate	23.909 \| fine	104.757 \| fine	20.526 \| good	0.691 \| good	14.376 \| good	0.313 \| good
2025-06-06T06:00:00.000Z	75 \| moderate	22.121 \| fine	96.665 \| fine	19.515 \| good	0.768 \| good	16.672 \| good	0.333 \| good
2025-06-06T07:00:00.000Z	69 \| moderate	18.51 \| fine	80.738 \| fine	23.421 \| good	0.556 \| good	9.57 \| good	0.276 \| good
2025-06-06T08:00:00.000Z	64 \| moderate	15.981 \| fine	70.846 \| fine	24.291 \| good	0.601 \| good	11.071 \| good	0.289 \| good
2025-06-06T09:00:00.000Z	62 \| moderate	14.721 \| fine	64.922 \| fine	20.328 \| good	0.646 \| good	12.572 \| good	0.301 \| good
2025-06-06T10:00:00.000Z	73 \| moderate	21.162 \| fine	93.044 \| fine	17.986 \| good	0.53 \| good	6.12 \| good	0.26 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.294 \| fine	81.012 \| fine	18.776 \| good	0.566 \| good	6.829 \| good	0.267 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.458 \| fine	81.011 \| fine	18.848 \| good	0.602 \| good	7.538 \| good	0.275 \| good
2025-06-06T13:00:00.000Z	69 \| moderate	19.38 \| fine	84.981 \| fine	21.632 \| good	0.637 \| good	5.284 \| good	0.259 \| good
2025-06-06T14:00:00.000Z	69 \| moderate	18.823 \| fine	82.98 \| fine	28.312 \| good	0.687 \| good	6.164 \| good	0.268 \| good
2025-06-06T15:00:00.000Z	64 \| moderate	15.949 \| fine	70.966 \| fine	37.581 \| good	0.736 \| good	7.044 \| good	0.277 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.886 \| fine	62.932 \| fine	45.683 \| good	1.038 \| good	3.275 \| good	0.231 \| good
2025-06-06T17:00:00.000Z	67 \| moderate	18.087 \| fine	80.802 \| fine	44.879 \| good	1.148 \| good	3.596 \| good	0.235 \| good
2025-06-06T18:00:00.000Z	66 \| moderate	16.759 \| fine	74.836 \| fine	50.951 \| good	1.258 \| good	3.917 \| good	0.238 \| good
2025-06-06T19:00:00.000Z	56 \| moderate	11.554 \| good	50.918 \| good	52.868 \| good	0.688 \| good	2.259 \| good	0.207 \| good
2025-06-06T20:00:00.000Z	52 \| moderate	9.601 \| good	42.962 \| good	54.761 \| good	0.757 \| good	2.79 \| good	0.213 \| good
2025-06-06T21:00:00.000Z	46 \| good	7.804 \| good	34.023 \| good	49.951 \| good	0.827 \| good	3.322 \| good	0.22 \| good

St. Peters

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near St. Peters, Missouri

0.33ppm

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 St. Peters, Missouri get updated?

Air quality updates for St. Peters, Missouri are available every hour.

What time in the past 24 hours saw the poorest air quality in St. Peters, Missouri?

St. Peters, Missouri experienced its worst air quality at 10:00:00, 2025-06-03.

When was air quality in St. Peters, Missouri the best over the past 24 hours?

The best air quality in St. Peters, Missouri was observed at 06:00:00 on 2025-06-04.

What is the air quality in St. Peters, Missouri right now?

The air quality in St. Peters, Missouri right now is Moderate, with an AQI of 60.

What pollutant is most frequently found in St. Peters, Missouri?

In St. Peters, Missouri, PM2.5 is the most frequently found pollutant.

What can I do if the air quality in St. Peters, Missouri is poor?

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

What is the PM_2.5 concentration in St. Peters, Missouri right now?

St. Peters, Missouri currently has a PM_2.5 concentration of 13.851 μg/m³.

What is the current level of PM₁₀ in St. Peters, Missouri?

St. Peters, Missouri currently has a PM₁₀ concentration of 44.611 μg/m³.

What is the current level of carbon monoxide (CO) in St. Peters, Missouri?

The current carbon monoxide (CO) level in St. Peters, Missouri is 0.316 ppm.

What is the current level of sulfur dioxide (SO₂) in St. Peters, Missouri?

The current sulfur dioxide (SO₂) concentration in St. Peters, Missouri is 0.536 ppb.

What is the current level of ozone (O₃) in St. Peters, Missouri?

St. Peters, Missouri currently has an ozone (O₃) concentration of 39.032 ppm.

What is the current level of nitrogen dioxide (NO₂) in St. Peters, Missouri?

The current level of nitrogen dioxide (NO₂) in St. Peters, Missouri is 6.192 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T22:00:00.000Z	64 \| moderate	16.219 \| fine	53.128 \| good	57.01 \| fine	1.054 \| good	5.722 \| good	0.245 \| good
2025-06-02T23:00:00.000Z	58 \| moderate	12.757 \| fine	37.726 \| good	52.316 \| good	0.849 \| good	5.293 \| good	0.291 \| good
2025-06-03T00:00:00.000Z	58 \| moderate	13.485 \| fine	41.04 \| good	49.273 \| good	0.65 \| good	5.333 \| good	0.291 \| good
2025-06-03T01:00:00.000Z	62 \| moderate	14.575 \| fine	48.565 \| good	48.195 \| good	0.759 \| good	5.517 \| good	0.297 \| good
2025-06-03T02:00:00.000Z	58 \| moderate	13.003 \| fine	28.876 \| good	41.832 \| good	0.785 \| good	7.407 \| good	0.25 \| good
2025-06-03T03:00:00.000Z	38 \| good	7.5 \| good	26.438 \| good	38.645 \| good	0.874 \| good	7.127 \| good	0.25 \| good
2025-06-03T04:00:00.000Z	44 \| good	7.647 \| good	26.174 \| good	42.287 \| good	1.274 \| good	6.126 \| good	0.25 \| good
2025-06-03T05:00:00.000Z	49 \| good	8.653 \| good	38.556 \| good	36.393 \| good	0.794 \| good	6.84 \| good	0.245 \| good
2025-06-03T06:00:00.000Z	52 \| moderate	10.234 \| good	48.335 \| good	40.305 \| good	0.924 \| good	7.432 \| good	0.25 \| good
2025-06-03T07:00:00.000Z	52 \| moderate	9.583 \| good	24.837 \| good	31.932 \| good	0.723 \| good	7.8 \| good	0.256 \| good
2025-06-03T08:00:00.000Z	54 \| moderate	11.271 \| good	40.276 \| good	32.57 \| good	0.858 \| good	7.798 \| good	0.245 \| good
2025-06-03T09:00:00.000Z	49 \| good	8.522 \| good	45.272 \| good	28.04 \| good	0.897 \| good	6.088 \| good	0.209 \| good
2025-06-03T10:00:00.000Z	52 \| moderate	9.531 \| good	37.5 \| good	23.126 \| good	1.028 \| good	6.875 \| good	0.163 \| good
2025-06-03T11:00:00.000Z	52 \| moderate	9.708 \| good	33.663 \| good	34.099 \| good	0.955 \| good	10.592 \| good	0.209 \| good
2025-06-03T12:00:00.000Z	49 \| good	9.302 \| good	42.045 \| good	31.375 \| good	1.002 \| good	10.594 \| good	0.215 \| good
2025-06-03T13:00:00.000Z	45 \| good	8.465 \| good	48.78 \| good	30.49 \| good	0.53 \| good	10.516 \| good	0.297 \| good
2025-06-03T14:00:00.000Z	58 \| moderate	10.354 \| good	68.833 \| fine	32.574 \| good	0.866 \| good	7.385 \| good	0.261 \| good
2025-06-03T15:00:00.000Z	54 \| moderate	11.485 \| good	51.424 \| good	34.092 \| good	1.016 \| good	5.235 \| good	0.25 \| good
2025-06-03T16:00:00.000Z	61 \| moderate	13.858 \| fine	75.697 \| fine	38.019 \| good	0.501 \| good	4.611 \| good	0.245 \| good
2025-06-03T17:00:00.000Z	76 \| moderate	14.585 \| fine	105.127 \| fine	39.829 \| good	0.475 \| good	4.519 \| good	0.245 \| good
2025-06-03T18:00:00.000Z	59 \| moderate	13.249 \| fine	71.851 \| fine	42.124 \| good	0.424 \| good	3.957 \| good	0.245 \| good
2025-06-03T19:00:00.000Z	64 \| moderate	15.607 \| fine	66.455 \| fine	47.418 \| good	0.703 \| good	4.506 \| good	0.245 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	16.1 \| fine	72.339 \| fine	43.815 \| good	0.715 \| good	4.688 \| good	0.239 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.37 \| fine	66.043 \| fine	41.113 \| good	0.701 \| good	3.959 \| good	0.297 \| good
2025-06-03T22:00:00.000Z	66 \| moderate	16.76 \| fine	70.439 \| fine	41.801 \| good	0.721 \| good	3.732 \| good	0.244 \| good
2025-06-03T23:00:00.000Z	60 \| moderate	13.916 \| fine	50.578 \| good	43.435 \| good	0.444 \| good	4.536 \| good	0.245 \| good
2025-06-04T00:00:00.000Z	52 \| moderate	10.457 \| good	33.046 \| good	42.187 \| good	0.711 \| good	3.736 \| good	0.25 \| good
2025-06-04T01:00:00.000Z	56 \| moderate	11.949 \| good	43.308 \| good	43.272 \| good	0.708 \| good	4.101 \| good	0.244 \| good
2025-06-04T02:00:00.000Z	54 \| moderate	11.456 \| good	42.213 \| good	42.581 \| good	0.665 \| good	5.305 \| good	0.25 \| good
2025-06-04T03:00:00.000Z	44 \| good	7.087 \| good	31.002 \| good	46.786 \| good	0.509 \| good	2.802 \| good	0.226 \| good
2025-06-04T04:00:00.000Z	60 \| moderate	14.058 \| fine	59.47 \| fine	39.159 \| good	0.798 \| good	6.614 \| good	0.244 \| good
2025-06-04T05:00:00.000Z	60 \| moderate	13.692 \| fine	37.315 \| good	36.468 \| good	0.607 \| good	8.231 \| good	0.281 \| good
2025-06-04T06:00:00.000Z	60 \| moderate	14.066 \| fine	55.16 \| fine	40.727 \| good	0.697 \| good	6.243 \| good	0.275 \| good
2025-06-04T07:00:00.000Z	54 \| moderate	11.458 \| good	38.142 \| good	38.385 \| good	0.676 \| good	6.119 \| good	0.281 \| good
2025-06-04T08:00:00.000Z	49 \| good	8.636 \| good	17.619 \| good	40.673 \| good	0.685 \| good	6.146 \| good	0.276 \| good
2025-06-04T09:00:00.000Z	35 \| good	4.761 \| good	32.842 \| good	37.842 \| good	0.76 \| good	3.068 \| good	0.148 \| good
2025-06-04T10:00:00.000Z	39 \| good	2.651 \| good	9.813 \| good	41.795 \| good	0.499 \| good	4.483 \| good	0.194 \| good
2025-06-04T11:00:00.000Z	36 \| good	2.651 \| good	10.728 \| good	38.617 \| good	0.36 \| good	9.219 \| good	0.205 \| good
2025-06-04T12:00:00.000Z	38 \| good	2.317 \| good	24.36 \| good	40.977 \| good	0.659 \| good	12.305 \| good	0.276 \| good
2025-06-04T13:00:00.000Z	38 \| good	7.148 \| good	31.974 \| good	37.315 \| good	0.254 \| good	2.023 \| good	0.192 \| good
2025-06-04T14:00:00.000Z	34 \| good	4.777 \| good	23.121 \| good	36.608 \| good	0.61 \| good	18.915 \| good	0.352 \| good
2025-06-04T15:00:00.000Z	41 \| good	3.93 \| good	30.217 \| good	44.105 \| good	0.684 \| good	15.807 \| good	0.351 \| good
2025-06-04T16:00:00.000Z	35 \| good	3.005 \| good	31.041 \| good	38.232 \| good	0.41 \| good	10.672 \| good	0.328 \| good
2025-06-04T17:00:00.000Z	32 \| good	3.873 \| good	18.02 \| good	34.989 \| good	0.443 \| good	7.187 \| good	0.322 \| good
2025-06-04T18:00:00.000Z	31 \| good	4.924 \| good	12.903 \| good	33.024 \| good	0.555 \| good	5.062 \| good	0.287 \| good
2025-06-04T19:00:00.000Z	49 \| good	8.946 \| good	39.237 \| good	32.686 \| good	0.505 \| good	5.045 \| good	0.297 \| good
2025-06-04T20:00:00.000Z	60 \| moderate	13.851 \| fine	44.611 \| good	39.032 \| good	0.536 \| good	6.192 \| good	0.316 \| good
2025-06-04T21:00:00.000Z	60 \| moderate	14.349 \| fine	54.192 \| good	36.117 \| good	0.432 \| good	5.913 \| good	0.275 \| good
2025-06-04T21:00:00.000Z	60 \| moderate	13.851 \| fine	44.611 \| good	39.032 \| good	0.536 \| good	6.192 \| good	0.316 \| good
2025-06-04T22:00:00.000Z	88 \| moderate	28.828 \| fine	124.928 \| fine	44.141 \| good	0.185 \| good	2.108 \| good	0.195 \| good
2025-06-04T23:00:00.000Z	82 \| moderate	26.178 \| fine	113.024 \| fine	45.932 \| good	0.248 \| good	2.658 \| good	0.203 \| good
2025-06-05T00:00:00.000Z	88 \| moderate	28.861 \| fine	124.968 \| fine	44.691 \| good	0.312 \| good	3.207 \| good	0.21 \| good
2025-06-05T01:00:00.000Z	86 \| moderate	27.998 \| fine	121.005 \| fine	38.884 \| good	0.262 \| good	4.936 \| good	0.219 \| good
2025-06-05T02:00:00.000Z	90 \| moderate	30.256 \| fine	130.938 \| fine	37.505 \| good	0.338 \| good	6.384 \| good	0.234 \| good
2025-06-05T03:00:00.000Z	96 \| moderate	33.476 \| fine	144.99 \| fine	35.996 \| good	0.414 \| good	7.833 \| good	0.249 \| good
2025-06-05T04:00:00.000Z	102 \| sensitive	35.841 \| moderate	156.958 \| moderate	38.194 \| good	0.392 \| good	3.962 \| good	0.215 \| good
2025-06-05T05:00:00.000Z	110 \| sensitive	38.732 \| moderate	170.925 \| moderate	38.397 \| good	0.464 \| good	4.68 \| good	0.223 \| good
2025-06-05T06:00:00.000Z	115 \| sensitive	41.132 \| moderate	182.989 \| moderate	37.823 \| good	0.536 \| good	5.399 \| good	0.231 \| good
2025-06-05T07:00:00.000Z	118 \| sensitive	42.422 \| moderate	188.986 \| moderate	33.912 \| good	0.62 \| good	3.733 \| good	0.213 \| good
2025-06-05T08:00:00.000Z	119 \| sensitive	42.583 \| moderate	189.059 \| moderate	31.411 \| good	0.691 \| good	4.12 \| good	0.218 \| good
2025-06-05T09:00:00.000Z	107 \| sensitive	37.78 \| moderate	165.1 \| moderate	28.651 \| good	0.762 \| good	4.507 \| good	0.223 \| good
2025-06-05T10:00:00.000Z	107 \| sensitive	37.798 \| moderate	165.149 \| moderate	26.914 \| good	0.758 \| good	3.448 \| good	0.207 \| good
2025-06-05T11:00:00.000Z	105 \| sensitive	37.119 \| moderate	162.777 \| moderate	25.058 \| good	0.822 \| good	3.758 \| good	0.211 \| good
2025-06-05T12:00:00.000Z	99 \| moderate	34.586 \| fine	148.94 \| fine	28.371 \| good	0.887 \| good	4.067 \| good	0.215 \| good
2025-06-05T13:00:00.000Z	102 \| sensitive	35.544 \| moderate	154.988 \| fine	31.194 \| good	0.955 \| good	1.852 \| good	0.203 \| good
2025-06-05T14:00:00.000Z	105 \| sensitive	37.154 \| moderate	163.016 \| moderate	31.911 \| good	1.024 \| good	2.164 \| good	0.208 \| good
2025-06-05T15:00:00.000Z	100 \| moderate	35.256 \| fine	153.998 \| fine	34.865 \| good	1.093 \| good	2.475 \| good	0.213 \| good
2025-06-05T16:00:00.000Z	96 \| moderate	32.662 \| fine	141.049 \| fine	38.494 \| good	0.625 \| good	0.883 \| good	0.173 \| good
2025-06-05T17:00:00.000Z	90 \| moderate	29.8 \| fine	129.127 \| fine	40.092 \| good	0.698 \| good	1.021 \| good	0.177 \| good
2025-06-05T18:00:00.000Z	86 \| moderate	28.039 \| fine	121.199 \| fine	39.844 \| good	0.77 \| good	1.16 \| good	0.181 \| good
2025-06-05T19:00:00.000Z	84 \| moderate	27.24 \| fine	119.026 \| fine	39.348 \| good	0.386 \| good	0.795 \| good	0.167 \| good
2025-06-05T20:00:00.000Z	88 \| moderate	28.508 \| fine	123.1 \| fine	39.425 \| good	0.465 \| good	0.906 \| good	0.17 \| good
2025-06-05T21:00:00.000Z	81 \| moderate	25.009 \| fine	109.082 \| fine	42.221 \| good	0.543 \| good	1.018 \| good	0.172 \| good
2025-06-05T22:00:00.000Z	75 \| moderate	21.973 \| fine	97.073 \| fine	43.466 \| good	0.317 \| good	2.474 \| good	0.185 \| good
2025-06-05T23:00:00.000Z	69 \| moderate	18.619 \| fine	81.255 \| fine	44.027 \| good	0.389 \| good	2.862 \| good	0.19 \| good
2025-06-06T00:00:00.000Z	71 \| moderate	19.651 \| fine	86.972 \| fine	47.662 \| good	0.462 \| good	3.25 \| good	0.195 \| good
2025-06-06T01:00:00.000Z	66 \| moderate	17.376 \| fine	77.026 \| fine	40.053 \| good	0.454 \| good	7.715 \| good	0.247 \| good
2025-06-06T02:00:00.000Z	69 \| moderate	18.971 \| fine	83.035 \| fine	34.866 \| good	0.533 \| good	9.118 \| good	0.26 \| good
2025-06-06T03:00:00.000Z	77 \| moderate	22.747 \| fine	98.946 \| fine	28.551 \| good	0.612 \| good	10.52 \| good	0.273 \| good
2025-06-06T04:00:00.000Z	81 \| moderate	24.777 \| fine	108.791 \| fine	24.994 \| good	0.615 \| good	12.079 \| good	0.294 \| good
2025-06-06T05:00:00.000Z	79 \| moderate	23.909 \| fine	104.757 \| fine	20.526 \| good	0.691 \| good	14.376 \| good	0.313 \| good
2025-06-06T06:00:00.000Z	75 \| moderate	22.121 \| fine	96.665 \| fine	19.515 \| good	0.768 \| good	16.672 \| good	0.333 \| good
2025-06-06T07:00:00.000Z	69 \| moderate	18.51 \| fine	80.738 \| fine	23.421 \| good	0.556 \| good	9.57 \| good	0.276 \| good
2025-06-06T08:00:00.000Z	64 \| moderate	15.981 \| fine	70.846 \| fine	24.291 \| good	0.601 \| good	11.071 \| good	0.289 \| good
2025-06-06T09:00:00.000Z	62 \| moderate	14.721 \| fine	64.922 \| fine	20.328 \| good	0.646 \| good	12.572 \| good	0.301 \| good
2025-06-06T10:00:00.000Z	73 \| moderate	21.162 \| fine	93.044 \| fine	17.986 \| good	0.53 \| good	6.12 \| good	0.26 \| good
2025-06-06T11:00:00.000Z	67 \| moderate	18.294 \| fine	81.012 \| fine	18.776 \| good	0.566 \| good	6.829 \| good	0.267 \| good
2025-06-06T12:00:00.000Z	67 \| moderate	18.458 \| fine	81.011 \| fine	18.848 \| good	0.602 \| good	7.538 \| good	0.275 \| good
2025-06-06T13:00:00.000Z	69 \| moderate	19.38 \| fine	84.981 \| fine	21.632 \| good	0.637 \| good	5.284 \| good	0.259 \| good
2025-06-06T14:00:00.000Z	69 \| moderate	18.823 \| fine	82.98 \| fine	28.312 \| good	0.687 \| good	6.164 \| good	0.268 \| good
2025-06-06T15:00:00.000Z	64 \| moderate	15.949 \| fine	70.966 \| fine	37.581 \| good	0.736 \| good	7.044 \| good	0.277 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.886 \| fine	62.932 \| fine	45.683 \| good	1.038 \| good	3.275 \| good	0.231 \| good
2025-06-06T17:00:00.000Z	67 \| moderate	18.087 \| fine	80.802 \| fine	44.879 \| good	1.148 \| good	3.596 \| good	0.235 \| good
2025-06-06T18:00:00.000Z	66 \| moderate	16.759 \| fine	74.836 \| fine	50.951 \| good	1.258 \| good	3.917 \| good	0.238 \| good
2025-06-06T19:00:00.000Z	56 \| moderate	11.554 \| good	50.918 \| good	52.868 \| good	0.688 \| good	2.259 \| good	0.207 \| good
2025-06-06T20:00:00.000Z	52 \| moderate	9.601 \| good	42.962 \| good	54.761 \| good	0.757 \| good	2.79 \| good	0.213 \| good
2025-06-06T21:00:00.000Z	46 \| good	7.804 \| good	34.023 \| good	49.951 \| good	0.827 \| good	3.322 \| good	0.22 \| good

Current air quality index in St. Peters, Missouri today

Major air pollutants in St. Peters, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live St. Peters, Missouri air quality forecast and history

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near St. Peters, Missouri

Air quality in nearby cities

O'Fallon, Missouri

Dardenne Prairie, Missouri

St. Charles, Missouri

Lake St. Louis, Missouri

Chesterfield, Missouri

Bridgeton, Missouri

How accurate is Missouri, USA air quality data?

Air quality levels in US

Frequently asked questions

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What time in the past 24 hours saw the poorest air quality in St. Peters, Missouri?

When was air quality in St. Peters, Missouri the best over the past 24 hours?

What is the air quality in St. Peters, Missouri right now?

What pollutant is most frequently found in St. Peters, Missouri?

What can I do if the air quality in St. Peters, Missouri is poor?

What is the PM2.5 concentration in St. Peters, Missouri right now?

What is the current level of PM10 in St. Peters, Missouri?

What is the current level of carbon monoxide (CO) in St. Peters, Missouri?

What is the current level of sulfur dioxide (SO2) in St. Peters, Missouri?

What is the current level of ozone (O3) in St. Peters, Missouri?

What is the current level of nitrogen dioxide (NO2) in St. Peters, Missouri?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in St. Peters, Missouri right now?

What is the current level of PM₁₀ in St. Peters, Missouri?

What is the current level of sulfur dioxide (SO₂) in St. Peters, Missouri?

What is the current level of ozone (O₃) in St. Peters, Missouri?

What is the current level of nitrogen dioxide (NO₂) in St. Peters, Missouri?