What is the current concentration of PM10 in Hazelwood, Missouri?

The current PM10 concentration at Hazelwood, Missouri is 13.738 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Hazelwood, Missouri?

The current sulfur dioxide (SO2) concentration at Hazelwood, Missouri is 0.382 ppb.

What is the current concentration of ozone (O3) in Hazelwood, Missouri?

The current ozone (O3) concentration at Hazelwood, Missouri is 22.509 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Hazelwood, Missouri?

The current nitrogen dioxide (NO2) concentration at Hazelwood, Missouri is 10.028 ppb.

Hazelwood, Missouri live air quality index now

Q: What is the current concentration of PM2.5 in Hazelwood, Missouri?

The current PM2.5 concentration at Hazelwood, Missouri is 2.69 μg/m3.

Stay updated with real-time air quality in Hazelwood, 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

Hazelwood, Missouri

Last updated: ... (Local time)

Major air pollutants in Hazelwood, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

8.67 μg/m³

155

255

425

605+

Ozone (O₃)

30.53 ppb

201

201+

Sulfur Dioxide (SO₂)

0.50 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.00 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Hazelwood, Missouri

Get Live Pollen Counts

Hazelwood, Missouri

Scroll To Air Quality Map

Track live Hazelwood, 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	2.045 \| good	8.673 \| good	30.528 \| good	0.503 \| good	5.005 \| good	0.192 \| 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

Hazelwood

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Hazelwood, Missouri air quality map: Track AQI near you

0.19ppm

How accurate is Missouri, USA air quality data?

Air quality data and pollutant measurements for Missouri, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Hazelwood, Missouri updated?

The air quality for Hazelwood, Missouri is updated every hour.

When was the worst air quality at Hazelwood, Missouri in the last 24 hrs?

The worst air quality in Hazelwood, Missouri in the last 24 hours was observed at 07:00:00 on 2025-10-21.

When was the best air quality at Hazelwood, Missouri in the last 24 hrs?

In the last 24 hrs, the best air quality in Hazelwood, Missouri was observed at 11:00:00 on 2025-10-22.

What is the current air quality in Hazelwood, Missouri?

The current air quality in Hazelwood, Missouri is 21, categorized as Good based on real-time data.

What pollutant is the most common in Hazelwood, Missouri?

The most common pollutant in Hazelwood, Missouri is O3.

What should I do if the air quality in Hazelwood, Missouri is poor?

If the air quality in Hazelwood, Missouri is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Hazelwood, Missouri?

The current PM_2.5 concentration at Hazelwood, Missouri is 2.69 μg/m³.

What is the current concentration of PM₁₀ in Hazelwood, Missouri?

The current PM₁₀ concentration at Hazelwood, Missouri is 13.738 μg/m³.

What is the current concentration of carbon monoxide (CO) in Hazelwood, Missouri?

The current carbon monoxide (CO) concentration at Hazelwood, Missouri is 0.247 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Hazelwood, Missouri?

The current sulfur dioxide (SO₂) concentration at Hazelwood, Missouri is 0.382 ppb.

What is the current concentration of ozone (O₃) in Hazelwood, Missouri?

The current ozone (O₃) concentration at Hazelwood, Missouri is 22.509 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Hazelwood, Missouri?

The current nitrogen dioxide (NO₂) concentration at Hazelwood, Missouri is 10.028 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	2.045 \| good	8.673 \| good	30.528 \| good	0.503 \| good	5.005 \| good	0.192 \| 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

Hazelwood, Missouri live air quality index now

Major air pollutants in Hazelwood, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

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St. Ann, Missouri

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Overland, Missouri

Maryland Heights, Missouri

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Frequently asked questions

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What is the current concentration of PM2.5 in Hazelwood, Missouri?

What is the current concentration of PM10 in Hazelwood, Missouri?

What is the current concentration of carbon monoxide (CO) in Hazelwood, Missouri?

What is the current concentration of sulfur dioxide (SO2) in Hazelwood, Missouri?

What is the current concentration of ozone (O3) in Hazelwood, Missouri?

What is the current concentration of nitrogen dioxide (NO2) in Hazelwood, Missouri?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Hazelwood, Missouri?

What is the current concentration of PM₁₀ in Hazelwood, Missouri?

What is the current concentration of sulfur dioxide (SO₂) in Hazelwood, Missouri?

What is the current concentration of ozone (O₃) in Hazelwood, Missouri?

What is the current concentration of nitrogen dioxide (NO₂) in Hazelwood, Missouri?