What are the current PM10 levels at Florissant, Missouri?

The current PM10 levels in Florissant, Missouri are 13.156 μg/m3.

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

The current sulfur dioxide (SO2) levels in Florissant, Missouri are 0.331 ppb.

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

The current ozone (O3) levels at Florissant, Missouri is 22.674 ppm.

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

The current nitrogen dioxide (NO2) levels at Florissant, Missouri is 6.876 ppb.

Real-time air quality index in Florissant, Missouri today

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

The measured PM2.5 levels in Florissant, Missouri at present are 2.383 μg/m3.

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)

Good

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)

1.95 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.87 μg/m³

155

255

425

605+

Ozone (O₃)

31.25 ppb

201

201+

Sulfur Dioxide (SO₂)

0.47 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.13 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2025-10-20T20:00:00.000Z	31 \| good	1.764 \| good	7.604 \| good	34.294 \| good	0.615 \| good	5.119 \| good	0.266 \| good
2025-10-20T21:00:00.000Z	33 \| good	1.821 \| good	8.688 \| good	35.918 \| good	0.785 \| good	5.918 \| good	0.199 \| good
2025-10-20T22:00:00.000Z	34 \| good	2.359 \| good	10.454 \| good	36.647 \| good	0.842 \| good	5.91 \| good	0.197 \| good
2025-10-20T23:00:00.000Z	35 \| good	2.89 \| good	13.296 \| good	37.909 \| good	0.897 \| good	6.551 \| good	0.264 \| good
2025-10-21T00:00:00.000Z	34 \| good	2.293 \| good	10.584 \| good	37.203 \| good	0.876 \| good	7.098 \| good	0.264 \| good
2025-10-21T01:00:00.000Z	34 \| good	2.261 \| good	9.92 \| good	37.236 \| good	0.736 \| good	7.205 \| good	0.264 \| good
2025-10-21T02:00:00.000Z	33 \| good	2.8 \| good	12.321 \| good	36.144 \| good	0.773 \| good	7.266 \| good	0.197 \| good
2025-10-21T03:00:00.000Z	31 \| good	3.923 \| good	17.289 \| good	33.002 \| good	0.883 \| good	3.277 \| good	0.147 \| good
2025-10-21T04:00:00.000Z	31 \| good	2.586 \| good	11.664 \| good	33.399 \| good	0.81 \| good	5.588 \| good	0.226 \| good
2025-10-21T05:00:00.000Z	31 \| good	2.194 \| good	10.853 \| good	33.008 \| good	0.768 \| good	3.055 \| good	0.133 \| good
2025-10-21T06:00:00.000Z	31 \| good	2.052 \| good	11.153 \| good	33.053 \| good	0.929 \| good	3.036 \| good	0.133 \| good
2025-10-21T07:00:00.000Z	31 \| good	1.687 \| good	8.365 \| good	34.055 \| good	0.922 \| good	3.019 \| good	0.131 \| good
2025-10-21T08:00:00.000Z	30 \| good	1.533 \| good	8.685 \| good	31.938 \| good	0.919 \| good	3.009 \| good	0.135 \| good
2025-10-21T09:00:00.000Z	30 \| good	1.868 \| good	9.349 \| good	31.782 \| good	0.181 \| good	3.543 \| good	0.221 \| good
2025-10-21T10:00:00.000Z	26 \| good	1.544 \| good	6.952 \| good	27.7 \| good	0.401 \| good	6.368 \| good	0.161 \| good
2025-10-21T11:00:00.000Z	20 \| good	2.059 \| good	9.331 \| good	21.909 \| good	0.434 \| good	9.155 \| good	0.197 \| good
2025-10-21T12:00:00.000Z	20 \| good	2.271 \| good	10.664 \| good	21.504 \| good	0.421 \| good	11.424 \| good	0.264 \| good
2025-10-21T13:00:00.000Z	22 \| good	2.293 \| good	10.929 \| good	23.597 \| good	0.422 \| good	11.547 \| good	0.271 \| good
2025-10-21T14:00:00.000Z	21 \| good	2.49 \| good	11.664 \| good	22.927 \| good	0.698 \| good	10.336 \| good	0.3 \| good
2025-10-21T15:00:00.000Z	23 \| good	2.394 \| good	10.536 \| good	25.183 \| good	2.722 \| good	8.249 \| good	0.265 \| good
2025-10-21T16:00:00.000Z	24 \| good	1.816 \| good	9.285 \| good	26.027 \| good	1.007 \| good	6.052 \| good	0.196 \| good
2025-10-21T17:00:00.000Z	25 \| good	1.789 \| good	8.716 \| good	27.478 \| good	0.495 \| good	4.337 \| good	0.196 \| good
2025-10-21T18:00:00.000Z	30 \| good	4.137 \| good	18.306 \| good	32.101 \| good	0.424 \| good	4.137 \| good	0.168 \| good
2025-10-21T19:00:00.000Z	29 \| good	3.033 \| good	12.621 \| good	31.218 \| good	0.414 \| good	4.781 \| good	0.197 \| good
2025-10-21T20:00:00.000Z	31 \| good	2.724 \| good	11.802 \| good	32.904 \| good	0.408 \| good	4.432 \| good	0.197 \| good
2025-10-21T21:00:00.000Z	30 \| good	2.368 \| good	15.119 \| good	31.992 \| good	0.334 \| good	4.153 \| good	0.129 \| good
2025-10-21T22:00:00.000Z	31 \| good	1.071 \| good	6.936 \| good	32.542 \| good	0.386 \| good	4.127 \| good	0.102 \| good
2025-10-21T23:00:00.000Z	30 \| good	1.64 \| good	7.662 \| good	31.688 \| good	0.382 \| good	3.81 \| good	0.102 \| good
2025-10-22T00:00:00.000Z	31 \| good	1.701 \| good	8.904 \| good	32.963 \| good	0.44 \| good	5.617 \| good	0.102 \| good
2025-10-22T01:00:00.000Z	29 \| good	1.098 \| good	8.105 \| good	31.371 \| good	0.51 \| good	6.108 \| good	0.129 \| good
2025-10-22T02:00:00.000Z	29 \| good	1.164 \| good	7.322 \| good	30.74 \| good	0.498 \| good	8.173 \| good	0.196 \| good
2025-10-22T03:00:00.000Z	22 \| good	1.834 \| good	7.568 \| good	23.697 \| good	0.466 \| good	3.094 \| good	0.137 \| good
2025-10-22T04:00:00.000Z	26 \| good	1.723 \| good	12.03 \| good	28.126 \| good	0.4 \| good	8.335 \| good	0.196 \| good
2025-10-22T05:00:00.000Z	24 \| good	1.668 \| good	8.434 \| good	26.122 \| good	0.484 \| good	6.903 \| good	0.198 \| good
2025-10-22T06:00:00.000Z	23 \| good	1.901 \| good	10.885 \| good	25.08 \| good	0.426 \| good	6.133 \| good	0.196 \| good
2025-10-22T07:00:00.000Z	23 \| good	1.874 \| good	11.27 \| good	25.478 \| good	0.426 \| good	6.173 \| good	0.196 \| good
2025-10-22T08:00:00.000Z	23 \| good	1.709 \| good	10.104 \| good	24.991 \| good	0.426 \| good	6.212 \| good	0.196 \| good
2025-10-22T09:00:00.000Z	22 \| good	1.709 \| good	10.964 \| good	24.127 \| good	0.582 \| good	1.997 \| good	0.166 \| good
2025-10-22T10:00:00.000Z	21 \| good	0.982 \| good	6.3 \| good	23.029 \| good	0.409 \| good	5.203 \| good	0.129 \| good
2025-10-22T11:00:00.000Z	21 \| good	1.732 \| good	8.479 \| good	22.964 \| good	0.401 \| good	6.347 \| good	0.196 \| good
2025-10-22T12:00:00.000Z	20 \| good	2.006 \| good	10.153 \| good	22.292 \| good	0.336 \| good	9.921 \| good	0.263 \| good
2025-10-22T13:00:00.000Z	21 \| good	2.058 \| good	9.764 \| good	22.923 \| good	0.321 \| good	11.865 \| good	0.33 \| good
2025-10-22T14:00:00.000Z	20 \| good	1.861 \| good	9.529 \| good	22.307 \| good	0.563 \| good	10.295 \| good	0.299 \| good
2025-10-22T15:00:00.000Z	23 \| good	1.998 \| good	8.349 \| good	24.534 \| good	0.479 \| good	7.381 \| good	0.263 \| good
2025-10-22T16:00:00.000Z	24 \| good	1.107 \| good	6.2 \| good	25.792 \| good	0.447 \| good	6.032 \| good	0.196 \| good
2025-10-22T17:00:00.000Z	26 \| good	2.141 \| good	10.325 \| good	28.247 \| good	0.554 \| good	4.85 \| good	0.196 \| good
2025-10-22T18:00:00.000Z	29 \| good	1.614 \| good	7.297 \| good	30.775 \| good	0.467 \| good	4.541 \| good	0.196 \| good
2025-10-22T19:00:00.000Z	31 \| good	1.788 \| good	8.714 \| good	33.297 \| good	0.425 \| good	3.966 \| good	0.196 \| good
2025-10-22T19:00:00.000Z	29 \| good	1.951 \| good	9.867 \| good	31.248 \| good	0.472 \| good	3.128 \| good	0.195 \| good
2025-10-22T13:00:00.000Z	27 \| good	4.582 \| good	20.031 \| good	18.54 \| good	0.543 \| good	2.626 \| good	0.125 \| good
2025-10-22T14:00:00.000Z	23 \| good	3.178 \| good	13.819 \| good	24.98 \| good	0.584 \| good	2.532 \| good	0.129 \| good
2025-10-22T15:00:00.000Z	24 \| good	2.047 \| good	8.287 \| good	25.833 \| good	0.624 \| good	2.437 \| good	0.133 \| good
2025-10-22T16:00:00.000Z	26 \| good	0.894 \| good	3.293 \| good	27.725 \| good	0.611 \| good	2.015 \| good	0.13 \| good
2025-10-22T17:00:00.000Z	28 \| good	0.271 \| good	0.831 \| good	29.827 \| good	0.598 \| good	1.593 \| good	0.126 \| good
2025-10-22T18:00:00.000Z	29 \| good	0.902 \| good	3.298 \| good	31.028 \| good	0.585 \| good	1.172 \| good	0.123 \| good
2025-10-22T19:00:00.000Z	29 \| good	0.771 \| good	3.237 \| good	31.247 \| good	0.566 \| good	1.159 \| good	0.123 \| good
2025-10-22T20:00:00.000Z	29 \| good	1.337 \| good	5.302 \| good	30.654 \| good	0.546 \| good	1.147 \| good	0.124 \| good
2025-10-22T21:00:00.000Z	27 \| good	0.342 \| good	1.132 \| good	29.205 \| good	0.526 \| good	1.134 \| good	0.124 \| good
2025-10-22T22:00:00.000Z	26 \| good	0.772 \| good	2.939 \| good	28.471 \| good	0.57 \| good	3.325 \| good	0.142 \| good
2025-10-22T23:00:00.000Z	21 \| good	0.395 \| good	1.309 \| good	23.352 \| good	0.613 \| good	5.515 \| good	0.16 \| good
2025-10-23T00:00:00.000Z	19 \| good	1.125 \| good	4.815 \| good	20.069 \| good	0.656 \| good	7.705 \| good	0.177 \| good
2025-10-23T01:00:00.000Z	19 \| good	1.208 \| good	4.87 \| good	20.667 \| good	0.718 \| good	9.744 \| good	0.192 \| good
2025-10-23T02:00:00.000Z	21 \| good	1.261 \| good	5.027 \| good	22.705 \| good	0.779 \| good	11.784 \| good	0.207 \| good
2025-10-23T03:00:00.000Z	20 \| good	1.21 \| good	4.903 \| good	21.789 \| good	0.841 \| good	13.823 \| good	0.222 \| good
2025-10-23T04:00:00.000Z	19 \| good	0.536 \| good	2.059 \| good	21.333 \| good	0.756 \| good	11.354 \| good	0.203 \| good
2025-10-23T05:00:00.000Z	17 \| good	0.995 \| good	3.847 \| good	17.754 \| good	0.67 \| good	8.885 \| good	0.184 \| good
2025-10-23T06:00:00.000Z	14 \| good	0.551 \| good	2.04 \| good	14.934 \| good	0.584 \| good	6.415 \| good	0.166 \| good
2025-10-23T07:00:00.000Z	12 \| good	0.853 \| good	3.126 \| good	13.458 \| good	0.566 \| good	5.645 \| good	0.157 \| good
2025-10-23T08:00:00.000Z	12 \| good	1.374 \| good	5.174 \| good	12.951 \| good	0.547 \| good	4.875 \| good	0.149 \| good
2025-10-23T09:00:00.000Z	12 \| good	0.788 \| good	2.983 \| good	13.404 \| good	0.528 \| good	4.104 \| good	0.141 \| good
2025-10-23T10:00:00.000Z	10 \| good	1.373 \| good	5.331 \| good	10.579 \| good	0.563 \| good	5.16 \| good	0.148 \| good
2025-10-23T11:00:00.000Z	11 \| good	2.435 \| good	10.333 \| good	6.797 \| good	0.598 \| good	6.216 \| good	0.154 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.905 \| good	17.107 \| good	6.128 \| good	0.634 \| good	7.271 \| good	0.161 \| good
2025-10-23T13:00:00.000Z	22 \| good	4.496 \| good	19.748 \| good	8.161 \| good	0.714 \| good	6.57 \| good	0.167 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.535 \| good	19.664 \| good	14.817 \| good	0.795 \| good	5.87 \| good	0.172 \| good
2025-10-23T15:00:00.000Z	22 \| good	3.78 \| good	16.461 \| good	20.34 \| good	0.875 \| good	5.169 \| good	0.178 \| good
2025-10-23T16:00:00.000Z	23 \| good	3.43 \| good	15.235 \| good	25.355 \| good	0.793 \| good	3.842 \| good	0.162 \| good
2025-10-23T17:00:00.000Z	28 \| good	2.533 \| good	10.22 \| good	29.828 \| good	0.711 \| good	2.515 \| good	0.147 \| good
2025-10-23T18:00:00.000Z	31 \| good	2.405 \| good	9.839 \| good	33.654 \| good	0.629 \| good	1.188 \| good	0.131 \| good
2025-10-23T19:00:00.000Z	33 \| good	3.124 \| good	13.764 \| good	36.201 \| good	0.604 \| good	1.188 \| good	0.13 \| good
2025-10-23T20:00:00.000Z	34 \| good	2.903 \| good	12.312 \| good	37.092 \| good	0.578 \| good	1.188 \| good	0.129 \| good
2025-10-23T21:00:00.000Z	32 \| good	1.009 \| good	4.166 \| good	34.928 \| good	0.553 \| good	1.188 \| good	0.128 \| good
2025-10-23T22:00:00.000Z	31 \| good	1.512 \| good	6.159 \| good	32.599 \| good	0.598 \| good	5.167 \| good	0.161 \| good
2025-10-23T23:00:00.000Z	25 \| good	1.734 \| good	7.155 \| good	26.593 \| good	0.643 \| good	9.147 \| good	0.193 \| good
2025-10-24T00:00:00.000Z	27 \| good	4.518 \| good	19.506 \| good	21.379 \| good	0.689 \| good	13.127 \| good	0.225 \| good
2025-10-24T01:00:00.000Z	27 \| good	5.492 \| good	24.071 \| good	18.238 \| good	0.818 \| good	17.027 \| good	0.254 \| good
2025-10-24T02:00:00.000Z	38 \| good	7.455 \| good	33.108 \| good	17.429 \| good	0.946 \| good	20.926 \| good	0.284 \| good
2025-10-24T03:00:00.000Z	52 \| moderate	9.616 \| good	42.967 \| good	14.065 \| good	1.075 \| good	24.826 \| good	0.313 \| good
2025-10-24T04:00:00.000Z	52 \| moderate	10.033 \| good	44.599 \| good	14.426 \| good	1.039 \| good	24.351 \| good	0.311 \| good
2025-10-24T05:00:00.000Z	49 \| good	8.6 \| good	38.05 \| good	15.419 \| good	1.004 \| good	23.876 \| good	0.309 \| good
2025-10-24T06:00:00.000Z	62 \| moderate	15.005 \| fine	15.146 \| good	5.262 \| good	0.992 \| good	23.942 \| good	0.311 \| good
2025-10-24T07:00:00.000Z	27 \| good	4.819 \| good	21.173 \| good	13.767 \| good	0.847 \| good	19.541 \| good	0.276 \| good
2025-10-24T08:00:00.000Z	33 \| good	5.857 \| good	25.445 \| good	13.386 \| good	0.727 \| good	15.681 \| good	0.244 \| good
2025-10-24T09:00:00.000Z	38 \| good	6.657 \| good	29.434 \| good	14.787 \| good	0.606 \| good	11.821 \| good	0.212 \| good
2025-10-24T10:00:00.000Z	44 \| good	7.663 \| good	33.51 \| good	13.182 \| good	0.6 \| good	11.242 \| good	0.206 \| good
2025-10-24T11:00:00.000Z	52 \| moderate	9.959 \| good	44.049 \| good	7.902 \| good	0.593 \| good	10.662 \| good	0.199 \| good
2025-10-24T12:00:00.000Z	49 \| good	9.463 \| good	9.656 \| good	14.099 \| good	0.595 \| good	10.17 \| good	0.193 \| good

Florissant

Empower business decisions with accurate air quality data

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

0.19ppm

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

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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 07:00:00 on 2025-10-21.

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

The best air quality in Florissant, Missouri was recorded at 11:00:00 on 2025-10-22.

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

The real-time air quality index in Florissant, Missouri is 21, 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 2.383 μg/m³.

What are the current PM₁₀ levels at Florissant, Missouri?

The current PM₁₀ levels in Florissant, Missouri are 13.156 μg/m³.

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

The current carbon monoxide (CO) level in Florissant, Missouri is 0.247 ppm.

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

The current sulfur dioxide (SO₂) levels in Florissant, Missouri are 0.331 ppb.

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

The current ozone (O₃) levels at Florissant, Missouri is 22.674 ppm.

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

The current nitrogen dioxide (NO₂) levels at Florissant, Missouri is 6.876 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T20:00:00.000Z	31 \| good	1.764 \| good	7.604 \| good	34.294 \| good	0.615 \| good	5.119 \| good	0.266 \| good
2025-10-20T21:00:00.000Z	33 \| good	1.821 \| good	8.688 \| good	35.918 \| good	0.785 \| good	5.918 \| good	0.199 \| good
2025-10-20T22:00:00.000Z	34 \| good	2.359 \| good	10.454 \| good	36.647 \| good	0.842 \| good	5.91 \| good	0.197 \| good
2025-10-20T23:00:00.000Z	35 \| good	2.89 \| good	13.296 \| good	37.909 \| good	0.897 \| good	6.551 \| good	0.264 \| good
2025-10-21T00:00:00.000Z	34 \| good	2.293 \| good	10.584 \| good	37.203 \| good	0.876 \| good	7.098 \| good	0.264 \| good
2025-10-21T01:00:00.000Z	34 \| good	2.261 \| good	9.92 \| good	37.236 \| good	0.736 \| good	7.205 \| good	0.264 \| good
2025-10-21T02:00:00.000Z	33 \| good	2.8 \| good	12.321 \| good	36.144 \| good	0.773 \| good	7.266 \| good	0.197 \| good
2025-10-21T03:00:00.000Z	31 \| good	3.923 \| good	17.289 \| good	33.002 \| good	0.883 \| good	3.277 \| good	0.147 \| good
2025-10-21T04:00:00.000Z	31 \| good	2.586 \| good	11.664 \| good	33.399 \| good	0.81 \| good	5.588 \| good	0.226 \| good
2025-10-21T05:00:00.000Z	31 \| good	2.194 \| good	10.853 \| good	33.008 \| good	0.768 \| good	3.055 \| good	0.133 \| good
2025-10-21T06:00:00.000Z	31 \| good	2.052 \| good	11.153 \| good	33.053 \| good	0.929 \| good	3.036 \| good	0.133 \| good
2025-10-21T07:00:00.000Z	31 \| good	1.687 \| good	8.365 \| good	34.055 \| good	0.922 \| good	3.019 \| good	0.131 \| good
2025-10-21T08:00:00.000Z	30 \| good	1.533 \| good	8.685 \| good	31.938 \| good	0.919 \| good	3.009 \| good	0.135 \| good
2025-10-21T09:00:00.000Z	30 \| good	1.868 \| good	9.349 \| good	31.782 \| good	0.181 \| good	3.543 \| good	0.221 \| good
2025-10-21T10:00:00.000Z	26 \| good	1.544 \| good	6.952 \| good	27.7 \| good	0.401 \| good	6.368 \| good	0.161 \| good
2025-10-21T11:00:00.000Z	20 \| good	2.059 \| good	9.331 \| good	21.909 \| good	0.434 \| good	9.155 \| good	0.197 \| good
2025-10-21T12:00:00.000Z	20 \| good	2.271 \| good	10.664 \| good	21.504 \| good	0.421 \| good	11.424 \| good	0.264 \| good
2025-10-21T13:00:00.000Z	22 \| good	2.293 \| good	10.929 \| good	23.597 \| good	0.422 \| good	11.547 \| good	0.271 \| good
2025-10-21T14:00:00.000Z	21 \| good	2.49 \| good	11.664 \| good	22.927 \| good	0.698 \| good	10.336 \| good	0.3 \| good
2025-10-21T15:00:00.000Z	23 \| good	2.394 \| good	10.536 \| good	25.183 \| good	2.722 \| good	8.249 \| good	0.265 \| good
2025-10-21T16:00:00.000Z	24 \| good	1.816 \| good	9.285 \| good	26.027 \| good	1.007 \| good	6.052 \| good	0.196 \| good
2025-10-21T17:00:00.000Z	25 \| good	1.789 \| good	8.716 \| good	27.478 \| good	0.495 \| good	4.337 \| good	0.196 \| good
2025-10-21T18:00:00.000Z	30 \| good	4.137 \| good	18.306 \| good	32.101 \| good	0.424 \| good	4.137 \| good	0.168 \| good
2025-10-21T19:00:00.000Z	29 \| good	3.033 \| good	12.621 \| good	31.218 \| good	0.414 \| good	4.781 \| good	0.197 \| good
2025-10-21T20:00:00.000Z	31 \| good	2.724 \| good	11.802 \| good	32.904 \| good	0.408 \| good	4.432 \| good	0.197 \| good
2025-10-21T21:00:00.000Z	30 \| good	2.368 \| good	15.119 \| good	31.992 \| good	0.334 \| good	4.153 \| good	0.129 \| good
2025-10-21T22:00:00.000Z	31 \| good	1.071 \| good	6.936 \| good	32.542 \| good	0.386 \| good	4.127 \| good	0.102 \| good
2025-10-21T23:00:00.000Z	30 \| good	1.64 \| good	7.662 \| good	31.688 \| good	0.382 \| good	3.81 \| good	0.102 \| good
2025-10-22T00:00:00.000Z	31 \| good	1.701 \| good	8.904 \| good	32.963 \| good	0.44 \| good	5.617 \| good	0.102 \| good
2025-10-22T01:00:00.000Z	29 \| good	1.098 \| good	8.105 \| good	31.371 \| good	0.51 \| good	6.108 \| good	0.129 \| good
2025-10-22T02:00:00.000Z	29 \| good	1.164 \| good	7.322 \| good	30.74 \| good	0.498 \| good	8.173 \| good	0.196 \| good
2025-10-22T03:00:00.000Z	22 \| good	1.834 \| good	7.568 \| good	23.697 \| good	0.466 \| good	3.094 \| good	0.137 \| good
2025-10-22T04:00:00.000Z	26 \| good	1.723 \| good	12.03 \| good	28.126 \| good	0.4 \| good	8.335 \| good	0.196 \| good
2025-10-22T05:00:00.000Z	24 \| good	1.668 \| good	8.434 \| good	26.122 \| good	0.484 \| good	6.903 \| good	0.198 \| good
2025-10-22T06:00:00.000Z	23 \| good	1.901 \| good	10.885 \| good	25.08 \| good	0.426 \| good	6.133 \| good	0.196 \| good
2025-10-22T07:00:00.000Z	23 \| good	1.874 \| good	11.27 \| good	25.478 \| good	0.426 \| good	6.173 \| good	0.196 \| good
2025-10-22T08:00:00.000Z	23 \| good	1.709 \| good	10.104 \| good	24.991 \| good	0.426 \| good	6.212 \| good	0.196 \| good
2025-10-22T09:00:00.000Z	22 \| good	1.709 \| good	10.964 \| good	24.127 \| good	0.582 \| good	1.997 \| good	0.166 \| good
2025-10-22T10:00:00.000Z	21 \| good	0.982 \| good	6.3 \| good	23.029 \| good	0.409 \| good	5.203 \| good	0.129 \| good
2025-10-22T11:00:00.000Z	21 \| good	1.732 \| good	8.479 \| good	22.964 \| good	0.401 \| good	6.347 \| good	0.196 \| good
2025-10-22T12:00:00.000Z	20 \| good	2.006 \| good	10.153 \| good	22.292 \| good	0.336 \| good	9.921 \| good	0.263 \| good
2025-10-22T13:00:00.000Z	21 \| good	2.058 \| good	9.764 \| good	22.923 \| good	0.321 \| good	11.865 \| good	0.33 \| good
2025-10-22T14:00:00.000Z	20 \| good	1.861 \| good	9.529 \| good	22.307 \| good	0.563 \| good	10.295 \| good	0.299 \| good
2025-10-22T15:00:00.000Z	23 \| good	1.998 \| good	8.349 \| good	24.534 \| good	0.479 \| good	7.381 \| good	0.263 \| good
2025-10-22T16:00:00.000Z	24 \| good	1.107 \| good	6.2 \| good	25.792 \| good	0.447 \| good	6.032 \| good	0.196 \| good
2025-10-22T17:00:00.000Z	26 \| good	2.141 \| good	10.325 \| good	28.247 \| good	0.554 \| good	4.85 \| good	0.196 \| good
2025-10-22T18:00:00.000Z	29 \| good	1.614 \| good	7.297 \| good	30.775 \| good	0.467 \| good	4.541 \| good	0.196 \| good
2025-10-22T19:00:00.000Z	31 \| good	1.788 \| good	8.714 \| good	33.297 \| good	0.425 \| good	3.966 \| good	0.196 \| good
2025-10-22T19:00:00.000Z	29 \| good	1.951 \| good	9.867 \| good	31.248 \| good	0.472 \| good	3.128 \| good	0.195 \| good
2025-10-22T13:00:00.000Z	27 \| good	4.582 \| good	20.031 \| good	18.54 \| good	0.543 \| good	2.626 \| good	0.125 \| good
2025-10-22T14:00:00.000Z	23 \| good	3.178 \| good	13.819 \| good	24.98 \| good	0.584 \| good	2.532 \| good	0.129 \| good
2025-10-22T15:00:00.000Z	24 \| good	2.047 \| good	8.287 \| good	25.833 \| good	0.624 \| good	2.437 \| good	0.133 \| good
2025-10-22T16:00:00.000Z	26 \| good	0.894 \| good	3.293 \| good	27.725 \| good	0.611 \| good	2.015 \| good	0.13 \| good
2025-10-22T17:00:00.000Z	28 \| good	0.271 \| good	0.831 \| good	29.827 \| good	0.598 \| good	1.593 \| good	0.126 \| good
2025-10-22T18:00:00.000Z	29 \| good	0.902 \| good	3.298 \| good	31.028 \| good	0.585 \| good	1.172 \| good	0.123 \| good
2025-10-22T19:00:00.000Z	29 \| good	0.771 \| good	3.237 \| good	31.247 \| good	0.566 \| good	1.159 \| good	0.123 \| good
2025-10-22T20:00:00.000Z	29 \| good	1.337 \| good	5.302 \| good	30.654 \| good	0.546 \| good	1.147 \| good	0.124 \| good
2025-10-22T21:00:00.000Z	27 \| good	0.342 \| good	1.132 \| good	29.205 \| good	0.526 \| good	1.134 \| good	0.124 \| good
2025-10-22T22:00:00.000Z	26 \| good	0.772 \| good	2.939 \| good	28.471 \| good	0.57 \| good	3.325 \| good	0.142 \| good
2025-10-22T23:00:00.000Z	21 \| good	0.395 \| good	1.309 \| good	23.352 \| good	0.613 \| good	5.515 \| good	0.16 \| good
2025-10-23T00:00:00.000Z	19 \| good	1.125 \| good	4.815 \| good	20.069 \| good	0.656 \| good	7.705 \| good	0.177 \| good
2025-10-23T01:00:00.000Z	19 \| good	1.208 \| good	4.87 \| good	20.667 \| good	0.718 \| good	9.744 \| good	0.192 \| good
2025-10-23T02:00:00.000Z	21 \| good	1.261 \| good	5.027 \| good	22.705 \| good	0.779 \| good	11.784 \| good	0.207 \| good
2025-10-23T03:00:00.000Z	20 \| good	1.21 \| good	4.903 \| good	21.789 \| good	0.841 \| good	13.823 \| good	0.222 \| good
2025-10-23T04:00:00.000Z	19 \| good	0.536 \| good	2.059 \| good	21.333 \| good	0.756 \| good	11.354 \| good	0.203 \| good
2025-10-23T05:00:00.000Z	17 \| good	0.995 \| good	3.847 \| good	17.754 \| good	0.67 \| good	8.885 \| good	0.184 \| good
2025-10-23T06:00:00.000Z	14 \| good	0.551 \| good	2.04 \| good	14.934 \| good	0.584 \| good	6.415 \| good	0.166 \| good
2025-10-23T07:00:00.000Z	12 \| good	0.853 \| good	3.126 \| good	13.458 \| good	0.566 \| good	5.645 \| good	0.157 \| good
2025-10-23T08:00:00.000Z	12 \| good	1.374 \| good	5.174 \| good	12.951 \| good	0.547 \| good	4.875 \| good	0.149 \| good
2025-10-23T09:00:00.000Z	12 \| good	0.788 \| good	2.983 \| good	13.404 \| good	0.528 \| good	4.104 \| good	0.141 \| good
2025-10-23T10:00:00.000Z	10 \| good	1.373 \| good	5.331 \| good	10.579 \| good	0.563 \| good	5.16 \| good	0.148 \| good
2025-10-23T11:00:00.000Z	11 \| good	2.435 \| good	10.333 \| good	6.797 \| good	0.598 \| good	6.216 \| good	0.154 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.905 \| good	17.107 \| good	6.128 \| good	0.634 \| good	7.271 \| good	0.161 \| good
2025-10-23T13:00:00.000Z	22 \| good	4.496 \| good	19.748 \| good	8.161 \| good	0.714 \| good	6.57 \| good	0.167 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.535 \| good	19.664 \| good	14.817 \| good	0.795 \| good	5.87 \| good	0.172 \| good
2025-10-23T15:00:00.000Z	22 \| good	3.78 \| good	16.461 \| good	20.34 \| good	0.875 \| good	5.169 \| good	0.178 \| good
2025-10-23T16:00:00.000Z	23 \| good	3.43 \| good	15.235 \| good	25.355 \| good	0.793 \| good	3.842 \| good	0.162 \| good
2025-10-23T17:00:00.000Z	28 \| good	2.533 \| good	10.22 \| good	29.828 \| good	0.711 \| good	2.515 \| good	0.147 \| good
2025-10-23T18:00:00.000Z	31 \| good	2.405 \| good	9.839 \| good	33.654 \| good	0.629 \| good	1.188 \| good	0.131 \| good
2025-10-23T19:00:00.000Z	33 \| good	3.124 \| good	13.764 \| good	36.201 \| good	0.604 \| good	1.188 \| good	0.13 \| good
2025-10-23T20:00:00.000Z	34 \| good	2.903 \| good	12.312 \| good	37.092 \| good	0.578 \| good	1.188 \| good	0.129 \| good
2025-10-23T21:00:00.000Z	32 \| good	1.009 \| good	4.166 \| good	34.928 \| good	0.553 \| good	1.188 \| good	0.128 \| good
2025-10-23T22:00:00.000Z	31 \| good	1.512 \| good	6.159 \| good	32.599 \| good	0.598 \| good	5.167 \| good	0.161 \| good
2025-10-23T23:00:00.000Z	25 \| good	1.734 \| good	7.155 \| good	26.593 \| good	0.643 \| good	9.147 \| good	0.193 \| good
2025-10-24T00:00:00.000Z	27 \| good	4.518 \| good	19.506 \| good	21.379 \| good	0.689 \| good	13.127 \| good	0.225 \| good
2025-10-24T01:00:00.000Z	27 \| good	5.492 \| good	24.071 \| good	18.238 \| good	0.818 \| good	17.027 \| good	0.254 \| good
2025-10-24T02:00:00.000Z	38 \| good	7.455 \| good	33.108 \| good	17.429 \| good	0.946 \| good	20.926 \| good	0.284 \| good
2025-10-24T03:00:00.000Z	52 \| moderate	9.616 \| good	42.967 \| good	14.065 \| good	1.075 \| good	24.826 \| good	0.313 \| good
2025-10-24T04:00:00.000Z	52 \| moderate	10.033 \| good	44.599 \| good	14.426 \| good	1.039 \| good	24.351 \| good	0.311 \| good
2025-10-24T05:00:00.000Z	49 \| good	8.6 \| good	38.05 \| good	15.419 \| good	1.004 \| good	23.876 \| good	0.309 \| good
2025-10-24T06:00:00.000Z	62 \| moderate	15.005 \| fine	15.146 \| good	5.262 \| good	0.992 \| good	23.942 \| good	0.311 \| good
2025-10-24T07:00:00.000Z	27 \| good	4.819 \| good	21.173 \| good	13.767 \| good	0.847 \| good	19.541 \| good	0.276 \| good
2025-10-24T08:00:00.000Z	33 \| good	5.857 \| good	25.445 \| good	13.386 \| good	0.727 \| good	15.681 \| good	0.244 \| good
2025-10-24T09:00:00.000Z	38 \| good	6.657 \| good	29.434 \| good	14.787 \| good	0.606 \| good	11.821 \| good	0.212 \| good
2025-10-24T10:00:00.000Z	44 \| good	7.663 \| good	33.51 \| good	13.182 \| good	0.6 \| good	11.242 \| good	0.206 \| good
2025-10-24T11:00:00.000Z	52 \| moderate	9.959 \| good	44.049 \| good	7.902 \| good	0.593 \| good	10.662 \| good	0.199 \| good
2025-10-24T12:00:00.000Z	49 \| good	9.463 \| good	9.656 \| good	14.099 \| good	0.595 \| good	10.17 \| good	0.193 \| 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?