What are the current PM10 levels at Florissant, Missouri?

The current PM10 levels in Florissant, Missouri are 21.873 μg/m3.

What are the current sulfur dioxide (SO2) levels at Florissant, Missouri?

The current sulfur dioxide (SO2) levels in Florissant, Missouri are 0.518 ppb.

What are the current ozone (O3) levels at Florissant, Missouri?

The current ozone (O3) levels at Florissant, Missouri is 37.508 ppm.

What are the current nitrogen dioxide (NO2) levels at Florissant, Missouri?

The current nitrogen dioxide (NO2) levels at Florissant, Missouri is 2.724 ppb.

Real-time air quality index in Florissant, Missouri today

Name: Live air pollution levels in Florissant, Missouri today
Creator: Ambee

Stay updated with real-time air quality in Florissant, 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

Florissant, Missouri

Last updated: ... (Local time)

Common air pollutants in Florissant, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.43 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.94 μg/m³

155

255

425

605+

Ozone (O₃)

28.20 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.19 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Florissant, Missouri

Get Live Pollen Counts

Florissant, Missouri

Scroll To Air Quality Map

Track live Florissant, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T19:00:00.000Z	44 \| good	6.736 \| good	26.226 \| good	47.24 \| good	3.543 \| good	10.078 \| good	0.242 \| good
2025-09-03T20:00:00.000Z	45 \| good	7.146 \| good	22.584 \| good	48.592 \| good	1.47 \| good	5.935 \| good	0.199 \| good
2025-09-03T21:00:00.000Z	45 \| good	8.109 \| good	22.121 \| good	49.3 \| good	1.849 \| good	3.709 \| good	0.2 \| good
2025-09-03T22:00:00.000Z	44 \| good	6.989 \| good	22.116 \| good	47.103 \| good	1.702 \| good	3.242 \| good	0.199 \| good
2025-09-03T23:00:00.000Z	41 \| good	5.643 \| good	19.286 \| good	43.594 \| good	1.733 \| good	3.427 \| good	0.243 \| good
2025-09-04T00:00:00.000Z	39 \| good	5.48 \| good	22.012 \| good	42.255 \| good	0.57 \| good	4.383 \| good	0.199 \| good
2025-09-04T01:00:00.000Z	37 \| good	6.29 \| good	21.093 \| good	39.837 \| good	0.361 \| good	3.135 \| good	0.199 \| good
2025-09-04T02:00:00.000Z	36 \| good	6.238 \| good	18.87 \| good	38.597 \| good	0.403 \| good	4.366 \| good	0.199 \| good
2025-09-04T03:00:00.000Z	33 \| good	5.638 \| good	20.961 \| good	33.728 \| good	0.363 \| good	5.59 \| good	0.256 \| good
2025-09-04T04:00:00.000Z	31 \| good	5.001 \| good	18.559 \| good	32.906 \| good	0.34 \| good	2.936 \| good	0.199 \| good
2025-09-04T05:00:00.000Z	27 \| good	5.449 \| good	20.686 \| good	26.649 \| good	0.321 \| good	2.183 \| good	0.199 \| good
2025-09-04T06:00:00.000Z	44 \| good	7.993 \| good	31.059 \| good	23.564 \| good	0.265 \| good	1.908 \| good	0.199 \| good
2025-09-04T07:00:00.000Z	49 \| good	8.639 \| good	34.031 \| good	24.646 \| good	0.264 \| good	1.907 \| good	0.2 \| good
2025-09-04T08:00:00.000Z	49 \| good	8.871 \| good	35.064 \| good	23.441 \| good	0.264 \| good	1.905 \| good	0.199 \| good
2025-09-04T09:00:00.000Z	62 \| moderate	14.525 \| fine	58.368 \| fine	19.214 \| good	0.297 \| good	3.287 \| good	0.256 \| good
2025-09-04T10:00:00.000Z	60 \| moderate	13.665 \| fine	55.809 \| fine	18.897 \| good	0.257 \| good	3.648 \| good	0.255 \| good
2025-09-04T11:00:00.000Z	60 \| moderate	13.774 \| fine	55.487 \| fine	17.183 \| good	0.341 \| good	4.846 \| good	0.256 \| good
2025-09-04T12:00:00.000Z	60 \| moderate	13.952 \| fine	55.579 \| fine	16.384 \| good	0.24 \| good	6.812 \| good	0.298 \| good
2025-09-04T13:00:00.000Z	58 \| moderate	12.793 \| fine	57.869 \| fine	22.24 \| good	0.529 \| good	3.008 \| good	0.209 \| good
2025-09-04T14:00:00.000Z	60 \| moderate	13.956 \| fine	57.045 \| fine	19.02 \| good	0.244 \| good	4.309 \| good	0.3 \| good
2025-09-04T15:00:00.000Z	60 \| moderate	13.926 \| fine	55.228 \| fine	21.346 \| good	0.515 \| good	3.495 \| good	0.299 \| good
2025-09-04T16:00:00.000Z	56 \| moderate	12.088 \| good	48.324 \| good	26.483 \| good	0.344 \| good	3.669 \| good	0.256 \| good
2025-09-04T17:00:00.000Z	58 \| moderate	12.62 \| fine	53.301 \| good	30.41 \| good	0.276 \| good	3.421 \| good	0.256 \| good
2025-09-04T18:00:00.000Z	58 \| moderate	12.757 \| fine	50.306 \| good	32.241 \| good	0.287 \| good	3.087 \| good	0.299 \| good
2025-09-04T19:00:00.000Z	56 \| moderate	11.977 \| good	47.857 \| good	35.449 \| good	0.331 \| good	2.832 \| good	0.299 \| good
2025-09-04T20:00:00.000Z	54 \| moderate	11.436 \| good	46.633 \| good	38.989 \| good	0.499 \| good	2.943 \| good	0.299 \| good
2025-09-04T21:00:00.000Z	54 \| moderate	11.098 \| good	42.856 \| good	42.071 \| good	0.4 \| good	3.237 \| good	0.3 \| good
2025-09-04T22:00:00.000Z	54 \| moderate	11.19 \| good	43.889 \| good	45.275 \| good	1.991 \| good	3.543 \| good	0.299 \| good
2025-09-04T23:00:00.000Z	54 \| moderate	11.116 \| good	41.905 \| good	45.137 \| good	4.306 \| good	4.177 \| good	0.299 \| good
2025-09-05T00:00:00.000Z	49 \| good	9.006 \| good	35.438 \| good	42.995 \| good	1.826 \| good	5.03 \| good	0.244 \| good
2025-09-05T01:00:00.000Z	52 \| moderate	9.581 \| good	38.15 \| good	38.644 \| good	2.187 \| good	7.397 \| good	0.343 \| good
2025-09-05T02:00:00.000Z	54 \| moderate	11.406 \| good	37.475 \| good	37.725 \| good	2.503 \| good	11.054 \| good	0.384 \| good
2025-09-05T03:00:00.000Z	52 \| moderate	10.48 \| good	35.852 \| good	28.346 \| good	2.179 \| good	15.465 \| good	0.342 \| good
2025-09-05T04:00:00.000Z	56 \| moderate	12.238 \| fine	43.793 \| good	30.215 \| good	1.31 \| good	9.78 \| good	0.342 \| good
2025-09-05T05:00:00.000Z	60 \| moderate	14.033 \| fine	47.843 \| good	25.432 \| good	0.715 \| good	10.218 \| good	0.342 \| good
2025-09-05T06:00:00.000Z	58 \| moderate	13.339 \| fine	49.198 \| good	23.673 \| good	0.556 \| good	10.025 \| good	0.299 \| good
2025-09-05T07:00:00.000Z	58 \| moderate	13.39 \| fine	49.457 \| good	25.744 \| good	0.558 \| good	10.273 \| good	0.299 \| good
2025-09-05T08:00:00.000Z	60 \| moderate	14.179 \| fine	52.557 \| good	26.996 \| good	0.568 \| good	10.58 \| good	0.299 \| good
2025-09-05T09:00:00.000Z	60 \| moderate	14.342 \| fine	49.857 \| good	21.323 \| good	0.817 \| good	8.701 \| good	0.298 \| good
2025-09-05T10:00:00.000Z	60 \| moderate	13.693 \| fine	49.488 \| good	18.977 \| good	0.776 \| good	5.83 \| good	0.298 \| good
2025-09-05T11:00:00.000Z	58 \| moderate	12.937 \| fine	46.739 \| good	19.368 \| good	0.597 \| good	6.174 \| good	0.298 \| good
2025-09-05T12:00:00.000Z	56 \| moderate	12.289 \| fine	47.44 \| good	22.89 \| good	0.415 \| good	5.762 \| good	0.311 \| good
2025-09-05T13:00:00.000Z	58 \| moderate	12.645 \| fine	51.203 \| good	23.459 \| good	0.336 \| good	6.14 \| good	0.298 \| good
2025-09-05T14:00:00.000Z	58 \| moderate	13.325 \| fine	56.006 \| fine	26.098 \| good	0.342 \| good	4.282 \| good	0.299 \| good
2025-09-05T15:00:00.000Z	56 \| moderate	12.188 \| fine	55.774 \| fine	27.271 \| good	0.28 \| good	3.472 \| good	0.355 \| good
2025-09-05T16:00:00.000Z	54 \| moderate	11.332 \| good	54.688 \| good	27.707 \| good	0.219 \| good	2.839 \| good	0.299 \| good
2025-09-05T17:00:00.000Z	54 \| moderate	10.513 \| good	53.065 \| good	28.307 \| good	0.29 \| good	2.538 \| good	0.299 \| good
2025-09-05T18:00:00.000Z	54 \| moderate	11.426 \| good	44.94 \| good	28.202 \| good	0.257 \| good	2.191 \| good	0.294 \| good
2025-09-05T19:00:00.000Z	33 \| good	5.873 \| good	25.651 \| good	28.321 \| good	0.517 \| good	1.58 \| good	0.164 \| good
2025-09-05T20:00:00.000Z	38 \| good	6.798 \| good	30.138 \| good	25.719 \| good	0.541 \| good	1.752 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	38 \| good	6.693 \| good	29.766 \| good	27.213 \| good	0.565 \| good	1.923 \| good	0.159 \| good
2025-09-05T22:00:00.000Z	38 \| good	6.594 \| good	29.18 \| good	24.763 \| good	0.615 \| good	2.845 \| good	0.169 \| good
2025-09-05T23:00:00.000Z	27 \| good	2.994 \| good	12.515 \| good	28.717 \| good	0.664 \| good	3.766 \| good	0.179 \| good
2025-09-06T00:00:00.000Z	30 \| good	2.047 \| good	8.306 \| good	32.029 \| good	0.713 \| good	4.688 \| good	0.189 \| good
2025-09-06T01:00:00.000Z	29 \| good	4.577 \| good	19.69 \| good	30.602 \| good	0.659 \| good	4.551 \| good	0.189 \| good
2025-09-06T02:00:00.000Z	31 \| good	2.892 \| good	12.265 \| good	33.098 \| good	0.604 \| good	4.413 \| good	0.189 \| good
2025-09-06T03:00:00.000Z	30 \| good	2.902 \| good	12.221 \| good	32.314 \| good	0.549 \| good	4.276 \| good	0.189 \| good
2025-09-06T04:00:00.000Z	27 \| good	4.703 \| good	20.204 \| good	24.978 \| good	0.519 \| good	4.198 \| good	0.19 \| good
2025-09-06T05:00:00.000Z	33 \| good	5.959 \| good	26.435 \| good	21.211 \| good	0.489 \| good	4.121 \| good	0.192 \| good
2025-09-06T06:00:00.000Z	49 \| good	8.715 \| good	38.535 \| good	20.003 \| good	0.459 \| good	4.043 \| good	0.193 \| good
2025-09-06T07:00:00.000Z	49 \| good	9.485 \| good	42.215 \| good	17.682 \| good	0.45 \| good	4.102 \| good	0.19 \| good
2025-09-06T08:00:00.000Z	49 \| good	9.106 \| good	40.538 \| good	13.615 \| good	0.44 \| good	4.16 \| good	0.186 \| good
2025-09-06T09:00:00.000Z	44 \| good	7.95 \| good	34.73 \| good	10.874 \| good	0.431 \| good	4.219 \| good	0.182 \| good
2025-09-06T10:00:00.000Z	52 \| moderate	10.071 \| good	44.874 \| good	8.027 \| good	0.467 \| good	5.294 \| good	0.187 \| good
2025-09-06T11:00:00.000Z	49 \| good	8.529 \| good	37.53 \| good	7.37 \| good	0.502 \| good	6.37 \| good	0.191 \| good
2025-09-06T12:00:00.000Z	52 \| moderate	10.371 \| good	45.877 \| good	9.09 \| good	0.538 \| good	7.446 \| good	0.195 \| good
2025-09-06T13:00:00.000Z	54 \| moderate	11.375 \| good	50.467 \| good	16.08 \| good	0.696 \| good	6.033 \| good	0.189 \| good
2025-09-06T14:00:00.000Z	54 \| moderate	10.793 \| good	47.756 \| good	23.206 \| good	0.853 \| good	4.62 \| good	0.183 \| good
2025-09-06T15:00:00.000Z	31 \| good	3.696 \| good	16.164 \| good	33.031 \| good	1.011 \| good	3.206 \| good	0.177 \| good
2025-09-06T16:00:00.000Z	36 \| good	4.955 \| good	21.545 \| good	39.299 \| good	0.804 \| good	2.383 \| good	0.167 \| good
2025-09-06T17:00:00.000Z	40 \| good	3.766 \| good	16.275 \| good	43.442 \| good	0.598 \| good	1.56 \| good	0.157 \| good
2025-09-06T18:00:00.000Z	39 \| good	3.038 \| good	12.801 \| good	41.537 \| good	0.391 \| good	0.737 \| good	0.147 \| good
2025-09-06T19:00:00.000Z	38 \| good	3.415 \| good	15.114 \| good	41.443 \| good	0.359 \| good	0.742 \| good	0.148 \| good
2025-09-06T20:00:00.000Z	40 \| good	4.268 \| good	18.497 \| good	42.772 \| good	0.327 \| good	0.747 \| good	0.148 \| good
2025-09-06T21:00:00.000Z	43 \| good	4.067 \| good	17.936 \| good	46.064 \| good	0.295 \| good	0.752 \| good	0.149 \| good
2025-09-06T22:00:00.000Z	42 \| good	3.986 \| good	17.658 \| good	45.03 \| good	0.305 \| good	1.607 \| good	0.155 \| good
2025-09-06T23:00:00.000Z	40 \| good	3.102 \| good	13.277 \| good	42.945 \| good	0.316 \| good	2.461 \| good	0.16 \| good
2025-09-07T00:00:00.000Z	32 \| good	2.663 \| good	11.172 \| good	35.062 \| good	0.326 \| good	3.315 \| good	0.166 \| good
2025-09-07T01:00:00.000Z	21 \| good	3.13 \| good	13.623 \| good	23.102 \| good	0.417 \| good	9.194 \| good	0.214 \| good
2025-09-07T02:00:00.000Z	22 \| good	3.704 \| good	16.424 \| good	18.813 \| good	0.508 \| good	15.072 \| good	0.262 \| good
2025-09-07T03:00:00.000Z	22 \| good	3.842 \| good	17.103 \| good	19.793 \| good	0.599 \| good	20.951 \| good	0.31 \| good
2025-09-07T04:00:00.000Z	33 \| good	5.813 \| good	26.05 \| good	21.074 \| good	0.588 \| good	20.471 \| good	0.309 \| good
2025-09-07T05:00:00.000Z	33 \| good	6.232 \| good	27.832 \| good	19.989 \| good	0.577 \| good	19.991 \| good	0.308 \| good
2025-09-07T06:00:00.000Z	44 \| good	7.817 \| good	34.134 \| good	20.253 \| good	0.566 \| good	19.512 \| good	0.307 \| good
2025-09-07T07:00:00.000Z	49 \| good	9.228 \| good	40.805 \| good	18.826 \| good	0.536 \| good	16.022 \| good	0.278 \| good
2025-09-07T08:00:00.000Z	52 \| moderate	9.7 \| good	42.998 \| good	17.239 \| good	0.506 \| good	12.532 \| good	0.25 \| good
2025-09-07T09:00:00.000Z	52 \| moderate	9.667 \| good	42.856 \| good	18.109 \| good	0.477 \| good	9.042 \| good	0.222 \| good
2025-09-07T10:00:00.000Z	56 \| moderate	12.202 \| fine	54.624 \| good	14.71 \| good	0.489 \| good	8.154 \| good	0.214 \| good
2025-09-07T11:00:00.000Z	52 \| moderate	10.455 \| good	46.403 \| good	16.005 \| good	0.501 \| good	7.266 \| good	0.206 \| good
2025-09-07T12:00:00.000Z	54 \| moderate	11.282 \| good	49.834 \| good	15.528 \| good	0.514 \| good	6.378 \| good	0.197 \| good
2025-09-07T13:00:00.000Z	56 \| moderate	12.001 \| good	53.969 \| good	21.363 \| good	0.59 \| good	5.305 \| good	0.192 \| good
2025-09-07T14:00:00.000Z	60 \| moderate	13.735 \| fine	62.093 \| fine	27.89 \| good	0.667 \| good	4.233 \| good	0.187 \| good
2025-09-07T15:00:00.000Z	54 \| moderate	11.082 \| good	49.317 \| good	32.689 \| good	0.743 \| good	3.16 \| good	0.182 \| good
2025-09-07T16:00:00.000Z	54 \| moderate	10.698 \| good	47.399 \| good	37.274 \| good	0.641 \| good	2.376 \| good	0.178 \| good
2025-09-07T17:00:00.000Z	44 \| good	7.982 \| good	34.878 \| good	40.46 \| good	0.54 \| good	1.591 \| good	0.173 \| good
2025-09-07T18:00:00.000Z	44 \| good	7.501 \| good	33.18 \| good	43.125 \| good	0.438 \| good	0.807 \| good	0.169 \| good

Florissant

Empower business decisions with accurate air quality data

Florissant, Missouri air quality map: Real-time AQI near you

0.29ppm

How accurate is Missouri, USA air quality data?

Air quality measurements for Missouri, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How frequently is the air quality data for Florissant, Missouri updated?

Air quality data for Florissant, Missouri is updated on an hourly basis.

When did Florissant, Missouri experience the worst air quality in the last 24 hours?

The worst air quality in Florissant, Missouri was recorded at 02:00:00 on 2025-09-03.

When did Florissant, Missouri have its best air quality in the last 24 hours?

The best air quality in Florissant, Missouri was recorded at 02:00:00 on 2025-09-03.

What is the real-time air quality index for Florissant, Missouri?

The real-time air quality index in Florissant, Missouri is 35, currently categorized as Good.

Which pollutant is found most often in Florissant, Missouri?

The most common pollutant in Florissant, Missouri is O3.

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

If the air quality in Florissant, Missouri is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Florissant, Missouri?

The measured PM_2.5 levels in Florissant, Missouri at present are 5.607 μg/m³.

What are the current PM₁₀ levels at Florissant, Missouri?

The current PM₁₀ levels in Florissant, Missouri are 21.873 μg/m³.

What are the current carbon monoxide (CO) levels at Florissant, Missouri?

The current carbon monoxide (CO) level in Florissant, Missouri is 0.198 ppm.

What are the current sulfur dioxide (SO₂) levels at Florissant, Missouri?

The current sulfur dioxide (SO₂) levels in Florissant, Missouri are 0.518 ppb.

What are the current ozone (O₃) levels at Florissant, Missouri?

The current ozone (O₃) levels at Florissant, Missouri is 37.508 ppm.

What are the current nitrogen dioxide (NO₂) levels at Florissant, Missouri?

The current nitrogen dioxide (NO₂) levels at Florissant, Missouri is 2.724 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T19:00:00.000Z	44 \| good	6.736 \| good	26.226 \| good	47.24 \| good	3.543 \| good	10.078 \| good	0.242 \| good
2025-09-03T20:00:00.000Z	45 \| good	7.146 \| good	22.584 \| good	48.592 \| good	1.47 \| good	5.935 \| good	0.199 \| good
2025-09-03T21:00:00.000Z	45 \| good	8.109 \| good	22.121 \| good	49.3 \| good	1.849 \| good	3.709 \| good	0.2 \| good
2025-09-03T22:00:00.000Z	44 \| good	6.989 \| good	22.116 \| good	47.103 \| good	1.702 \| good	3.242 \| good	0.199 \| good
2025-09-03T23:00:00.000Z	41 \| good	5.643 \| good	19.286 \| good	43.594 \| good	1.733 \| good	3.427 \| good	0.243 \| good
2025-09-04T00:00:00.000Z	39 \| good	5.48 \| good	22.012 \| good	42.255 \| good	0.57 \| good	4.383 \| good	0.199 \| good
2025-09-04T01:00:00.000Z	37 \| good	6.29 \| good	21.093 \| good	39.837 \| good	0.361 \| good	3.135 \| good	0.199 \| good
2025-09-04T02:00:00.000Z	36 \| good	6.238 \| good	18.87 \| good	38.597 \| good	0.403 \| good	4.366 \| good	0.199 \| good
2025-09-04T03:00:00.000Z	33 \| good	5.638 \| good	20.961 \| good	33.728 \| good	0.363 \| good	5.59 \| good	0.256 \| good
2025-09-04T04:00:00.000Z	31 \| good	5.001 \| good	18.559 \| good	32.906 \| good	0.34 \| good	2.936 \| good	0.199 \| good
2025-09-04T05:00:00.000Z	27 \| good	5.449 \| good	20.686 \| good	26.649 \| good	0.321 \| good	2.183 \| good	0.199 \| good
2025-09-04T06:00:00.000Z	44 \| good	7.993 \| good	31.059 \| good	23.564 \| good	0.265 \| good	1.908 \| good	0.199 \| good
2025-09-04T07:00:00.000Z	49 \| good	8.639 \| good	34.031 \| good	24.646 \| good	0.264 \| good	1.907 \| good	0.2 \| good
2025-09-04T08:00:00.000Z	49 \| good	8.871 \| good	35.064 \| good	23.441 \| good	0.264 \| good	1.905 \| good	0.199 \| good
2025-09-04T09:00:00.000Z	62 \| moderate	14.525 \| fine	58.368 \| fine	19.214 \| good	0.297 \| good	3.287 \| good	0.256 \| good
2025-09-04T10:00:00.000Z	60 \| moderate	13.665 \| fine	55.809 \| fine	18.897 \| good	0.257 \| good	3.648 \| good	0.255 \| good
2025-09-04T11:00:00.000Z	60 \| moderate	13.774 \| fine	55.487 \| fine	17.183 \| good	0.341 \| good	4.846 \| good	0.256 \| good
2025-09-04T12:00:00.000Z	60 \| moderate	13.952 \| fine	55.579 \| fine	16.384 \| good	0.24 \| good	6.812 \| good	0.298 \| good
2025-09-04T13:00:00.000Z	58 \| moderate	12.793 \| fine	57.869 \| fine	22.24 \| good	0.529 \| good	3.008 \| good	0.209 \| good
2025-09-04T14:00:00.000Z	60 \| moderate	13.956 \| fine	57.045 \| fine	19.02 \| good	0.244 \| good	4.309 \| good	0.3 \| good
2025-09-04T15:00:00.000Z	60 \| moderate	13.926 \| fine	55.228 \| fine	21.346 \| good	0.515 \| good	3.495 \| good	0.299 \| good
2025-09-04T16:00:00.000Z	56 \| moderate	12.088 \| good	48.324 \| good	26.483 \| good	0.344 \| good	3.669 \| good	0.256 \| good
2025-09-04T17:00:00.000Z	58 \| moderate	12.62 \| fine	53.301 \| good	30.41 \| good	0.276 \| good	3.421 \| good	0.256 \| good
2025-09-04T18:00:00.000Z	58 \| moderate	12.757 \| fine	50.306 \| good	32.241 \| good	0.287 \| good	3.087 \| good	0.299 \| good
2025-09-04T19:00:00.000Z	56 \| moderate	11.977 \| good	47.857 \| good	35.449 \| good	0.331 \| good	2.832 \| good	0.299 \| good
2025-09-04T20:00:00.000Z	54 \| moderate	11.436 \| good	46.633 \| good	38.989 \| good	0.499 \| good	2.943 \| good	0.299 \| good
2025-09-04T21:00:00.000Z	54 \| moderate	11.098 \| good	42.856 \| good	42.071 \| good	0.4 \| good	3.237 \| good	0.3 \| good
2025-09-04T22:00:00.000Z	54 \| moderate	11.19 \| good	43.889 \| good	45.275 \| good	1.991 \| good	3.543 \| good	0.299 \| good
2025-09-04T23:00:00.000Z	54 \| moderate	11.116 \| good	41.905 \| good	45.137 \| good	4.306 \| good	4.177 \| good	0.299 \| good
2025-09-05T00:00:00.000Z	49 \| good	9.006 \| good	35.438 \| good	42.995 \| good	1.826 \| good	5.03 \| good	0.244 \| good
2025-09-05T01:00:00.000Z	52 \| moderate	9.581 \| good	38.15 \| good	38.644 \| good	2.187 \| good	7.397 \| good	0.343 \| good
2025-09-05T02:00:00.000Z	54 \| moderate	11.406 \| good	37.475 \| good	37.725 \| good	2.503 \| good	11.054 \| good	0.384 \| good
2025-09-05T03:00:00.000Z	52 \| moderate	10.48 \| good	35.852 \| good	28.346 \| good	2.179 \| good	15.465 \| good	0.342 \| good
2025-09-05T04:00:00.000Z	56 \| moderate	12.238 \| fine	43.793 \| good	30.215 \| good	1.31 \| good	9.78 \| good	0.342 \| good
2025-09-05T05:00:00.000Z	60 \| moderate	14.033 \| fine	47.843 \| good	25.432 \| good	0.715 \| good	10.218 \| good	0.342 \| good
2025-09-05T06:00:00.000Z	58 \| moderate	13.339 \| fine	49.198 \| good	23.673 \| good	0.556 \| good	10.025 \| good	0.299 \| good
2025-09-05T07:00:00.000Z	58 \| moderate	13.39 \| fine	49.457 \| good	25.744 \| good	0.558 \| good	10.273 \| good	0.299 \| good
2025-09-05T08:00:00.000Z	60 \| moderate	14.179 \| fine	52.557 \| good	26.996 \| good	0.568 \| good	10.58 \| good	0.299 \| good
2025-09-05T09:00:00.000Z	60 \| moderate	14.342 \| fine	49.857 \| good	21.323 \| good	0.817 \| good	8.701 \| good	0.298 \| good
2025-09-05T10:00:00.000Z	60 \| moderate	13.693 \| fine	49.488 \| good	18.977 \| good	0.776 \| good	5.83 \| good	0.298 \| good
2025-09-05T11:00:00.000Z	58 \| moderate	12.937 \| fine	46.739 \| good	19.368 \| good	0.597 \| good	6.174 \| good	0.298 \| good
2025-09-05T12:00:00.000Z	56 \| moderate	12.289 \| fine	47.44 \| good	22.89 \| good	0.415 \| good	5.762 \| good	0.311 \| good
2025-09-05T13:00:00.000Z	58 \| moderate	12.645 \| fine	51.203 \| good	23.459 \| good	0.336 \| good	6.14 \| good	0.298 \| good
2025-09-05T14:00:00.000Z	58 \| moderate	13.325 \| fine	56.006 \| fine	26.098 \| good	0.342 \| good	4.282 \| good	0.299 \| good
2025-09-05T15:00:00.000Z	56 \| moderate	12.188 \| fine	55.774 \| fine	27.271 \| good	0.28 \| good	3.472 \| good	0.355 \| good
2025-09-05T16:00:00.000Z	54 \| moderate	11.332 \| good	54.688 \| good	27.707 \| good	0.219 \| good	2.839 \| good	0.299 \| good
2025-09-05T17:00:00.000Z	54 \| moderate	10.513 \| good	53.065 \| good	28.307 \| good	0.29 \| good	2.538 \| good	0.299 \| good
2025-09-05T18:00:00.000Z	54 \| moderate	11.426 \| good	44.94 \| good	28.202 \| good	0.257 \| good	2.191 \| good	0.294 \| good
2025-09-05T19:00:00.000Z	33 \| good	5.873 \| good	25.651 \| good	28.321 \| good	0.517 \| good	1.58 \| good	0.164 \| good
2025-09-05T20:00:00.000Z	38 \| good	6.798 \| good	30.138 \| good	25.719 \| good	0.541 \| good	1.752 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	38 \| good	6.693 \| good	29.766 \| good	27.213 \| good	0.565 \| good	1.923 \| good	0.159 \| good
2025-09-05T22:00:00.000Z	38 \| good	6.594 \| good	29.18 \| good	24.763 \| good	0.615 \| good	2.845 \| good	0.169 \| good
2025-09-05T23:00:00.000Z	27 \| good	2.994 \| good	12.515 \| good	28.717 \| good	0.664 \| good	3.766 \| good	0.179 \| good
2025-09-06T00:00:00.000Z	30 \| good	2.047 \| good	8.306 \| good	32.029 \| good	0.713 \| good	4.688 \| good	0.189 \| good
2025-09-06T01:00:00.000Z	29 \| good	4.577 \| good	19.69 \| good	30.602 \| good	0.659 \| good	4.551 \| good	0.189 \| good
2025-09-06T02:00:00.000Z	31 \| good	2.892 \| good	12.265 \| good	33.098 \| good	0.604 \| good	4.413 \| good	0.189 \| good
2025-09-06T03:00:00.000Z	30 \| good	2.902 \| good	12.221 \| good	32.314 \| good	0.549 \| good	4.276 \| good	0.189 \| good
2025-09-06T04:00:00.000Z	27 \| good	4.703 \| good	20.204 \| good	24.978 \| good	0.519 \| good	4.198 \| good	0.19 \| good
2025-09-06T05:00:00.000Z	33 \| good	5.959 \| good	26.435 \| good	21.211 \| good	0.489 \| good	4.121 \| good	0.192 \| good
2025-09-06T06:00:00.000Z	49 \| good	8.715 \| good	38.535 \| good	20.003 \| good	0.459 \| good	4.043 \| good	0.193 \| good
2025-09-06T07:00:00.000Z	49 \| good	9.485 \| good	42.215 \| good	17.682 \| good	0.45 \| good	4.102 \| good	0.19 \| good
2025-09-06T08:00:00.000Z	49 \| good	9.106 \| good	40.538 \| good	13.615 \| good	0.44 \| good	4.16 \| good	0.186 \| good
2025-09-06T09:00:00.000Z	44 \| good	7.95 \| good	34.73 \| good	10.874 \| good	0.431 \| good	4.219 \| good	0.182 \| good
2025-09-06T10:00:00.000Z	52 \| moderate	10.071 \| good	44.874 \| good	8.027 \| good	0.467 \| good	5.294 \| good	0.187 \| good
2025-09-06T11:00:00.000Z	49 \| good	8.529 \| good	37.53 \| good	7.37 \| good	0.502 \| good	6.37 \| good	0.191 \| good
2025-09-06T12:00:00.000Z	52 \| moderate	10.371 \| good	45.877 \| good	9.09 \| good	0.538 \| good	7.446 \| good	0.195 \| good
2025-09-06T13:00:00.000Z	54 \| moderate	11.375 \| good	50.467 \| good	16.08 \| good	0.696 \| good	6.033 \| good	0.189 \| good
2025-09-06T14:00:00.000Z	54 \| moderate	10.793 \| good	47.756 \| good	23.206 \| good	0.853 \| good	4.62 \| good	0.183 \| good
2025-09-06T15:00:00.000Z	31 \| good	3.696 \| good	16.164 \| good	33.031 \| good	1.011 \| good	3.206 \| good	0.177 \| good
2025-09-06T16:00:00.000Z	36 \| good	4.955 \| good	21.545 \| good	39.299 \| good	0.804 \| good	2.383 \| good	0.167 \| good
2025-09-06T17:00:00.000Z	40 \| good	3.766 \| good	16.275 \| good	43.442 \| good	0.598 \| good	1.56 \| good	0.157 \| good
2025-09-06T18:00:00.000Z	39 \| good	3.038 \| good	12.801 \| good	41.537 \| good	0.391 \| good	0.737 \| good	0.147 \| good
2025-09-06T19:00:00.000Z	38 \| good	3.415 \| good	15.114 \| good	41.443 \| good	0.359 \| good	0.742 \| good	0.148 \| good
2025-09-06T20:00:00.000Z	40 \| good	4.268 \| good	18.497 \| good	42.772 \| good	0.327 \| good	0.747 \| good	0.148 \| good
2025-09-06T21:00:00.000Z	43 \| good	4.067 \| good	17.936 \| good	46.064 \| good	0.295 \| good	0.752 \| good	0.149 \| good
2025-09-06T22:00:00.000Z	42 \| good	3.986 \| good	17.658 \| good	45.03 \| good	0.305 \| good	1.607 \| good	0.155 \| good
2025-09-06T23:00:00.000Z	40 \| good	3.102 \| good	13.277 \| good	42.945 \| good	0.316 \| good	2.461 \| good	0.16 \| good
2025-09-07T00:00:00.000Z	32 \| good	2.663 \| good	11.172 \| good	35.062 \| good	0.326 \| good	3.315 \| good	0.166 \| good
2025-09-07T01:00:00.000Z	21 \| good	3.13 \| good	13.623 \| good	23.102 \| good	0.417 \| good	9.194 \| good	0.214 \| good
2025-09-07T02:00:00.000Z	22 \| good	3.704 \| good	16.424 \| good	18.813 \| good	0.508 \| good	15.072 \| good	0.262 \| good
2025-09-07T03:00:00.000Z	22 \| good	3.842 \| good	17.103 \| good	19.793 \| good	0.599 \| good	20.951 \| good	0.31 \| good
2025-09-07T04:00:00.000Z	33 \| good	5.813 \| good	26.05 \| good	21.074 \| good	0.588 \| good	20.471 \| good	0.309 \| good
2025-09-07T05:00:00.000Z	33 \| good	6.232 \| good	27.832 \| good	19.989 \| good	0.577 \| good	19.991 \| good	0.308 \| good
2025-09-07T06:00:00.000Z	44 \| good	7.817 \| good	34.134 \| good	20.253 \| good	0.566 \| good	19.512 \| good	0.307 \| good
2025-09-07T07:00:00.000Z	49 \| good	9.228 \| good	40.805 \| good	18.826 \| good	0.536 \| good	16.022 \| good	0.278 \| good
2025-09-07T08:00:00.000Z	52 \| moderate	9.7 \| good	42.998 \| good	17.239 \| good	0.506 \| good	12.532 \| good	0.25 \| good
2025-09-07T09:00:00.000Z	52 \| moderate	9.667 \| good	42.856 \| good	18.109 \| good	0.477 \| good	9.042 \| good	0.222 \| good
2025-09-07T10:00:00.000Z	56 \| moderate	12.202 \| fine	54.624 \| good	14.71 \| good	0.489 \| good	8.154 \| good	0.214 \| good
2025-09-07T11:00:00.000Z	52 \| moderate	10.455 \| good	46.403 \| good	16.005 \| good	0.501 \| good	7.266 \| good	0.206 \| good
2025-09-07T12:00:00.000Z	54 \| moderate	11.282 \| good	49.834 \| good	15.528 \| good	0.514 \| good	6.378 \| good	0.197 \| good
2025-09-07T13:00:00.000Z	56 \| moderate	12.001 \| good	53.969 \| good	21.363 \| good	0.59 \| good	5.305 \| good	0.192 \| good
2025-09-07T14:00:00.000Z	60 \| moderate	13.735 \| fine	62.093 \| fine	27.89 \| good	0.667 \| good	4.233 \| good	0.187 \| good
2025-09-07T15:00:00.000Z	54 \| moderate	11.082 \| good	49.317 \| good	32.689 \| good	0.743 \| good	3.16 \| good	0.182 \| good
2025-09-07T16:00:00.000Z	54 \| moderate	10.698 \| good	47.399 \| good	37.274 \| good	0.641 \| good	2.376 \| good	0.178 \| good
2025-09-07T17:00:00.000Z	44 \| good	7.982 \| good	34.878 \| good	40.46 \| good	0.54 \| good	1.591 \| good	0.173 \| good
2025-09-07T18:00:00.000Z	44 \| good	7.501 \| good	33.18 \| good	43.125 \| good	0.438 \| good	0.807 \| good	0.169 \| good

Real-time air quality index in Florissant, Missouri today

Common air pollutants in Florissant, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Florissant, Missouri air quality forecast and history

Empower business decisions with accurate air quality data

Florissant, Missouri air quality map: Real-time AQI near you

Air quality in nearby cities

Hazelwood, Missouri

Ferguson, Missouri

Old Jamestown, Missouri

Bridgeton, Missouri

St. Ann, Missouri

Spanish Lake, Missouri

How accurate is Missouri, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Florissant, Missouri updated?

When did Florissant, Missouri experience the worst air quality in the last 24 hours?

When did Florissant, Missouri have its best air quality in the last 24 hours?

What is the real-time air quality index for Florissant, Missouri?

Which pollutant is found most often in Florissant, Missouri?

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

What are the current PM2.5 levels in Florissant, Missouri?

What are the current PM10 levels at Florissant, Missouri?

What are the current carbon monoxide (CO) levels at Florissant, Missouri?

What are the current sulfur dioxide (SO2) levels at Florissant, Missouri?

What are the current ozone (O3) levels at Florissant, Missouri?

What are the current nitrogen dioxide (NO2) levels at Florissant, Missouri?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Florissant, Missouri?

What are the current PM₁₀ levels at Florissant, Missouri?

What are the current sulfur dioxide (SO₂) levels at Florissant, Missouri?

What are the current ozone (O₃) levels at Florissant, Missouri?

What are the current nitrogen dioxide (NO₂) levels at Florissant, Missouri?