What is the current concentration of PM10 in Mason City, Iowa?

The current PM10 concentration at Mason City, Iowa is 5.921 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Mason City, Iowa?

The current sulfur dioxide (SO2) concentration at Mason City, Iowa is 0.065 ppb.

What is the current concentration of ozone (O3) in Mason City, Iowa?

The current ozone (O3) concentration at Mason City, Iowa is 20.704 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Mason City, Iowa?

The current nitrogen dioxide (NO2) concentration at Mason City, Iowa is 1.307 ppb.

Mason City, Iowa live air quality index now

Q: What is the current concentration of PM2.5 in Mason City, Iowa?

The current PM2.5 concentration at Mason City, Iowa is 1.431 μg/m3.

Stay updated with real-time air quality in Mason City, Iowa 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

Mason City, Iowa

Last updated: ... (Local time)

Major air pollutants in Mason City, Iowa

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.43 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

5.92 μg/m³

155

255

425

605+

Ozone (O₃)

20.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.07 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.31 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.12 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Mason City, Iowa

Get Live Pollen Counts

Mason City, Iowa

Scroll To Air Quality Map

Track live Mason City, Iowa air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T11:00:00.000Z	22 \| good	3.667 \| good	16 \| good	17.781 \| good	0.529 \| good	2.876 \| good	0.129 \| good
2025-10-20T12:00:00.000Z	22 \| good	3.726 \| good	16.186 \| good	19.53 \| good	0.58 \| good	2.299 \| good	0.138 \| good
2025-10-20T13:00:00.000Z	27 \| good	4.82 \| good	21 \| good	20.758 \| good	0.638 \| good	2.283 \| good	0.138 \| good
2025-10-20T14:00:00.000Z	33 \| good	5.567 \| good	24 \| good	22.653 \| good	0.696 \| good	2.267 \| good	0.138 \| good
2025-10-20T15:00:00.000Z	33 \| good	5.559 \| good	24 \| good	25.216 \| good	0.753 \| good	2.251 \| good	0.139 \| good
2025-10-20T16:00:00.000Z	25 \| good	3.799 \| good	16.317 \| good	27.158 \| good	0.767 \| good	1.965 \| good	0.134 \| good
2025-10-20T17:00:00.000Z	28 \| good	4.401 \| good	19 \| good	30.113 \| good	0.781 \| good	1.679 \| good	0.13 \| good
2025-10-20T18:00:00.000Z	31 \| good	4.376 \| good	19.131 \| good	32.522 \| good	0.795 \| good	1.393 \| good	0.125 \| good
2025-10-20T19:00:00.000Z	30 \| good	4.126 \| good	18.131 \| good	32.153 \| good	0.661 \| good	1.672 \| good	0.127 \| good
2025-10-20T20:00:00.000Z	29 \| good	4.245 \| good	19 \| good	30.566 \| good	0.526 \| good	1.951 \| good	0.129 \| good
2025-10-20T21:00:00.000Z	29 \| good	3.795 \| good	16.412 \| good	30.996 \| good	0.392 \| good	2.23 \| good	0.132 \| good
2025-10-20T22:00:00.000Z	28 \| good	3.402 \| good	15.203 \| good	29.896 \| good	0.353 \| good	2.322 \| good	0.132 \| good
2025-10-20T23:00:00.000Z	30 \| good	2.531 \| good	10 \| good	31.939 \| good	0.315 \| good	2.414 \| good	0.132 \| good
2025-10-21T00:00:00.000Z	27 \| good	3.194 \| good	13.842 \| good	29.259 \| good	0.276 \| good	2.506 \| good	0.132 \| good
2025-10-21T01:00:00.000Z	31 \| good	1.6 \| good	6.718 \| good	33.403 \| good	0.476 \| good	2.568 \| good	0.124 \| good
2025-10-21T02:00:00.000Z	30 \| good	2.086 \| good	8.52 \| good	32.252 \| good	0.686 \| good	2.157 \| good	0.119 \| good
2025-10-21T03:00:00.000Z	28 \| good	1.977 \| good	8 \| good	29.911 \| good	0.895 \| good	1.745 \| good	0.113 \| good
2025-10-21T04:00:00.000Z	26 \| good	2.437 \| good	10 \| good	28.409 \| good	0.901 \| good	1.741 \| good	0.116 \| good
2025-10-21T05:00:00.000Z	23 \| good	2.803 \| good	11.333 \| good	25.368 \| good	0.907 \| good	1.738 \| good	0.118 \| good
2025-10-21T06:00:00.000Z	22 \| good	2.435 \| good	10 \| good	23.935 \| good	0.913 \| good	1.734 \| good	0.12 \| good
2025-10-21T07:00:00.000Z	23 \| good	2.383 \| good	9.921 \| good	24.723 \| good	0.79 \| good	1.542 \| good	0.118 \| good
2025-10-21T08:00:00.000Z	22 \| good	2.42 \| good	10 \| good	23.908 \| good	0.668 \| good	1.351 \| good	0.117 \| good
2025-10-21T09:00:00.000Z	21 \| good	2.041 \| good	8.333 \| good	23.073 \| good	0.546 \| good	1.159 \| good	0.115 \| good
2025-10-21T10:00:00.000Z	22 \| good	1.532 \| good	6.333 \| good	24.167 \| good	0.501 \| good	1.081 \| good	0.115 \| good
2025-10-21T11:00:00.000Z	25 \| good	1.128 \| good	4.921 \| good	26.512 \| good	0.456 \| good	1.003 \| good	0.115 \| good
2025-10-21T12:00:00.000Z	21 \| good	0.71 \| good	2.921 \| good	22.735 \| good	0.62 \| good	0.927 \| good	0.121 \| good
2025-10-21T13:00:00.000Z	20 \| good	0.628 \| good	2 \| good	22.083 \| good	0.506 \| good	0.964 \| good	0.123 \| good
2025-10-21T14:00:00.000Z	20 \| good	1.191 \| good	5 \| good	21.543 \| good	0.391 \| good	1.001 \| good	0.125 \| good
2025-10-21T15:00:00.000Z	19 \| good	1.206 \| good	5 \| good	21.265 \| good	0.277 \| good	1.038 \| good	0.127 \| good
2025-10-21T16:00:00.000Z	20 \| good	1.654 \| good	7 \| good	21.562 \| good	0.197 \| good	0.914 \| good	0.124 \| good
2025-10-21T17:00:00.000Z	20 \| good	1.894 \| good	7.921 \| good	22.38 \| good	0.118 \| good	0.79 \| good	0.121 \| good
2025-10-21T18:00:00.000Z	21 \| good	1.698 \| good	7.052 \| good	23.454 \| good	0.038 \| good	0.666 \| good	0.118 \| good
2025-10-21T19:00:00.000Z	23 \| good	1.295 \| good	5 \| good	25.486 \| good	0.03 \| good	0.651 \| good	0.115 \| good
2025-10-21T20:00:00.000Z	27 \| good	0.672 \| good	2.317 \| good	28.901 \| good	0.021 \| good	0.635 \| good	0.112 \| good
2025-10-21T21:00:00.000Z	26 \| good	0.512 \| good	2 \| good	27.666 \| good	0.013 \| good	0.62 \| good	0.109 \| good
2025-10-21T22:00:00.000Z	25 \| good	0.48 \| good	1.921 \| good	26.693 \| good	0.014 \| good	0.758 \| good	0.112 \| good
2025-10-21T23:00:00.000Z	25 \| good	0.305 \| good	1 \| good	27.395 \| good	0.015 \| good	0.896 \| good	0.115 \| good
2025-10-22T00:00:00.000Z	25 \| good	0.232 \| good	1 \| good	26.66 \| good	0.017 \| good	1.057 \| good	0.114 \| good
2025-10-22T01:00:00.000Z	21 \| good	0.632 \| good	2 \| good	23.291 \| good	0.025 \| good	1.062 \| good	0.114 \| good
2025-10-22T02:00:00.000Z	21 \| good	1.14 \| good	5 \| good	22.699 \| good	0.033 \| good	1.068 \| good	0.114 \| good
2025-10-22T03:00:00.000Z	20 \| good	0.977 \| good	4 \| good	21.726 \| good	0.041 \| good	1.074 \| good	0.115 \| good
2025-10-22T04:00:00.000Z	20 \| good	0.984 \| good	4 \| good	21.772 \| good	0.044 \| good	1.113 \| good	0.116 \| good
2025-10-22T05:00:00.000Z	19 \| good	1.312 \| good	5 \| good	21.111 \| good	0.046 \| good	1.152 \| good	0.117 \| good
2025-10-22T06:00:00.000Z	19 \| good	1.581 \| good	6.333 \| good	21.158 \| good	0.049 \| good	1.191 \| good	0.119 \| good
2025-10-22T07:00:00.000Z	19 \| good	1.382 \| good	5.317 \| good	20.789 \| good	0.052 \| good	1.207 \| good	0.12 \| good
2025-10-22T08:00:00.000Z	19 \| good	1.435 \| good	5.921 \| good	20.536 \| good	0.055 \| good	1.222 \| good	0.12 \| good
2025-10-22T09:00:00.000Z	19 \| good	1.359 \| good	5.131 \| good	20.236 \| good	0.059 \| good	1.237 \| good	0.121 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.431 \| good	5.921 \| good	20.704 \| good	0.065 \| good	1.307 \| good	0.122 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.431 \| good	5.921 \| good	20.704 \| good	0.065 \| good	1.307 \| good	0.122 \| good
2025-10-22T11:00:00.000Z	18 \| good	1.486 \| good	6 \| good	19.105 \| good	0.071 \| good	1.379 \| good	0.123 \| good
2025-10-22T12:00:00.000Z	17 \| good	1.559 \| good	6 \| good	18.109 \| good	0.077 \| good	1.449 \| good	0.124 \| good
2025-10-22T13:00:00.000Z	17 \| good	1.721 \| good	7 \| good	18.056 \| good	0.086 \| good	1.376 \| good	0.126 \| good
2025-10-22T14:00:00.000Z	18 \| good	2.522 \| good	10.035 \| good	18.813 \| good	0.095 \| good	1.303 \| good	0.128 \| good
2025-10-22T15:00:00.000Z	19 \| good	2.263 \| good	9.179 \| good	20.305 \| good	0.103 \| good	1.23 \| good	0.13 \| good
2025-10-22T16:00:00.000Z	20 \| good	2.255 \| good	9 \| good	22.196 \| good	0.108 \| good	1.017 \| good	0.127 \| good
2025-10-22T17:00:00.000Z	22 \| good	2.442 \| good	10 \| good	24.311 \| good	0.113 \| good	0.804 \| good	0.123 \| good
2025-10-22T18:00:00.000Z	25 \| good	2.219 \| good	9.035 \| good	26.588 \| good	0.117 \| good	0.592 \| good	0.12 \| good
2025-10-22T19:00:00.000Z	26 \| good	1.849 \| good	7.947 \| good	27.984 \| good	0.134 \| good	0.578 \| good	0.12 \| good
2025-10-22T20:00:00.000Z	26 \| good	1.615 \| good	6.718 \| good	28.409 \| good	0.15 \| good	0.565 \| good	0.121 \| good
2025-10-22T21:00:00.000Z	26 \| good	1.674 \| good	6.917 \| good	28.04 \| good	0.167 \| good	0.552 \| good	0.121 \| good
2025-10-22T22:00:00.000Z	25 \| good	1.526 \| good	6.136 \| good	27.168 \| good	0.179 \| good	1.001 \| good	0.125 \| good
2025-10-22T23:00:00.000Z	22 \| good	1.019 \| good	4.2 \| good	23.881 \| good	0.192 \| good	1.451 \| good	0.13 \| good
2025-10-23T00:00:00.000Z	19 \| good	0.797 \| good	2.947 \| good	21.054 \| good	0.204 \| good	1.9 \| good	0.134 \| good
2025-10-23T01:00:00.000Z	18 \| good	1.73 \| good	7 \| good	18.896 \| good	0.208 \| good	2.157 \| good	0.137 \| good
2025-10-23T02:00:00.000Z	17 \| good	2.304 \| good	9.524 \| good	17.894 \| good	0.212 \| good	2.413 \| good	0.139 \| good
2025-10-23T03:00:00.000Z	15 \| good	2.263 \| good	9.242 \| good	16.067 \| good	0.216 \| good	2.67 \| good	0.141 \| good
2025-10-23T04:00:00.000Z	16 \| good	2.576 \| good	10.36 \| good	14.689 \| good	0.209 \| good	2.77 \| good	0.142 \| good
2025-10-23T05:00:00.000Z	16 \| good	3.282 \| good	14.33 \| good	13.45 \| good	0.202 \| good	2.871 \| good	0.143 \| good
2025-10-23T06:00:00.000Z	22 \| good	3.935 \| good	17.146 \| good	13.075 \| good	0.195 \| good	2.972 \| good	0.144 \| good
2025-10-23T07:00:00.000Z	22 \| good	3.57 \| good	15.873 \| good	12.473 \| good	0.193 \| good	3.048 \| good	0.144 \| good
2025-10-23T08:00:00.000Z	16 \| good	3.439 \| good	15.141 \| good	11.648 \| good	0.19 \| good	3.123 \| good	0.144 \| good
2025-10-23T09:00:00.000Z	16 \| good	3.155 \| good	13.806 \| good	11.667 \| good	0.188 \| good	3.199 \| good	0.144 \| good
2025-10-23T10:00:00.000Z	16 \| good	3.241 \| good	14.33 \| good	11.77 \| good	0.184 \| good	3.323 \| good	0.145 \| good
2025-10-23T11:00:00.000Z	16 \| good	3.143 \| good	13.734 \| good	11.436 \| good	0.181 \| good	3.447 \| good	0.145 \| good
2025-10-23T12:00:00.000Z	16 \| good	2.898 \| good	11.883 \| good	10.696 \| good	0.177 \| good	3.571 \| good	0.146 \| good
2025-10-23T13:00:00.000Z	22 \| good	3.606 \| good	15.883 \| good	10.884 \| good	0.177 \| good	3.261 \| good	0.148 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.907 \| good	21.2 \| good	16.099 \| good	0.177 \| good	2.951 \| good	0.151 \| good
2025-10-23T15:00:00.000Z	27 \| good	4.73 \| good	20.665 \| good	20.501 \| good	0.178 \| good	2.641 \| good	0.153 \| good
2025-10-23T16:00:00.000Z	22 \| good	4.497 \| good	19.917 \| good	23.849 \| good	0.194 \| good	2.013 \| good	0.144 \| good
2025-10-23T17:00:00.000Z	25 \| good	4.451 \| good	19.301 \| good	26.79 \| good	0.21 \| good	1.386 \| good	0.135 \| good
2025-10-23T18:00:00.000Z	27 \| good	4.672 \| good	20.072 \| good	29.405 \| good	0.226 \| good	0.758 \| good	0.126 \| good
2025-10-23T19:00:00.000Z	29 \| good	4.832 \| good	20.985 \| good	30.637 \| good	0.213 \| good	0.7 \| good	0.124 \| good
2025-10-23T20:00:00.000Z	28 \| good	5.165 \| good	22.082 \| good	30.46 \| good	0.2 \| good	0.643 \| good	0.121 \| good
2025-10-23T21:00:00.000Z	33 \| good	5.517 \| good	23.901 \| good	29.849 \| good	0.186 \| good	0.585 \| good	0.119 \| good
2025-10-23T22:00:00.000Z	27 \| good	5.425 \| good	23.185 \| good	28.762 \| good	0.19 \| good	1.62 \| good	0.127 \| good
2025-10-23T23:00:00.000Z	27 \| good	4.787 \| good	20.936 \| good	24.224 \| good	0.194 \| good	2.654 \| good	0.134 \| good
2025-10-24T00:00:00.000Z	27 \| good	4.55 \| good	19.796 \| good	21.735 \| good	0.197 \| good	3.689 \| good	0.142 \| good
2025-10-24T01:00:00.000Z	22 \| good	4.092 \| good	17.941 \| good	20.581 \| good	0.212 \| good	4.45 \| good	0.147 \| good
2025-10-24T02:00:00.000Z	27 \| good	4.672 \| good	20.389 \| good	19.806 \| good	0.227 \| good	5.212 \| good	0.152 \| good
2025-10-24T03:00:00.000Z	27 \| good	4.548 \| good	19.742 \| good	19.881 \| good	0.242 \| good	5.973 \| good	0.157 \| good
2025-10-24T04:00:00.000Z	27 \| good	5.459 \| good	23.316 \| good	17.951 \| good	0.267 \| good	7.446 \| good	0.166 \| good
2025-10-24T05:00:00.000Z	33 \| good	5.861 \| good	25.456 \| good	16.786 \| good	0.291 \| good	8.919 \| good	0.175 \| good
2025-10-24T06:00:00.000Z	33 \| good	6.135 \| good	6.178 \| good	15.534 \| good	0.317 \| good	10.439 \| good	0.183 \| good
2025-10-24T07:00:00.000Z	33 \| good	5.851 \| good	25.204 \| good	14.527 \| good	0.339 \| good	11.795 \| good	0.189 \| good
2025-10-24T08:00:00.000Z	38 \| good	6.544 \| good	29.073 \| good	13.282 \| good	0.363 \| good	13.198 \| good	0.195 \| good
2025-10-24T09:00:00.000Z	38 \| good	6.947 \| good	30.859 \| good	11.997 \| good	0.386 \| good	14.602 \| good	0.2 \| good
2025-10-24T10:00:00.000Z	33 \| good	5.896 \| good	25.853 \| good	10.948 \| good	0.402 \| good	15.796 \| good	0.207 \| good

Mason City

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Mason City, Iowa air quality map: Track AQI near you

0.19ppm

How accurate is Iowa, USA air quality data?

Air quality data and pollutant measurements for Iowa, 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 Mason City, Iowa updated?

The air quality for Mason City, Iowa is updated every hour.

When was the worst air quality at Mason City, Iowa in the last 24 hrs?

The worst air quality in Mason City, Iowa in the last 24 hours was observed at 08:00:00 on 2025-10-21.

When was the best air quality at Mason City, Iowa in the last 24 hrs?

In the last 24 hrs, the best air quality in Mason City, Iowa was observed at 09:00:00 on 2025-10-22.

What is the current air quality in Mason City, Iowa?

The current air quality in Mason City, Iowa is 19, categorized as Good based on real-time data.

What pollutant is the most common in Mason City, Iowa?

The most common pollutant in Mason City, Iowa is O3.

What should I do if the air quality in Mason City, Iowa is poor?

If the air quality in Mason City, Iowa is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Mason City, Iowa?

The current PM_2.5 concentration at Mason City, Iowa is 1.431 μg/m³.

What is the current concentration of PM₁₀ in Mason City, Iowa?

The current PM₁₀ concentration at Mason City, Iowa is 5.921 μg/m³.

What is the current concentration of carbon monoxide (CO) in Mason City, Iowa?

The current carbon monoxide (CO) concentration at Mason City, Iowa is 0.122 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Mason City, Iowa?

The current sulfur dioxide (SO₂) concentration at Mason City, Iowa is 0.065 ppb.

What is the current concentration of ozone (O₃) in Mason City, Iowa?

The current ozone (O₃) concentration at Mason City, Iowa is 20.704 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Mason City, Iowa?

The current nitrogen dioxide (NO₂) concentration at Mason City, Iowa is 1.307 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T11:00:00.000Z	22 \| good	3.667 \| good	16 \| good	17.781 \| good	0.529 \| good	2.876 \| good	0.129 \| good
2025-10-20T12:00:00.000Z	22 \| good	3.726 \| good	16.186 \| good	19.53 \| good	0.58 \| good	2.299 \| good	0.138 \| good
2025-10-20T13:00:00.000Z	27 \| good	4.82 \| good	21 \| good	20.758 \| good	0.638 \| good	2.283 \| good	0.138 \| good
2025-10-20T14:00:00.000Z	33 \| good	5.567 \| good	24 \| good	22.653 \| good	0.696 \| good	2.267 \| good	0.138 \| good
2025-10-20T15:00:00.000Z	33 \| good	5.559 \| good	24 \| good	25.216 \| good	0.753 \| good	2.251 \| good	0.139 \| good
2025-10-20T16:00:00.000Z	25 \| good	3.799 \| good	16.317 \| good	27.158 \| good	0.767 \| good	1.965 \| good	0.134 \| good
2025-10-20T17:00:00.000Z	28 \| good	4.401 \| good	19 \| good	30.113 \| good	0.781 \| good	1.679 \| good	0.13 \| good
2025-10-20T18:00:00.000Z	31 \| good	4.376 \| good	19.131 \| good	32.522 \| good	0.795 \| good	1.393 \| good	0.125 \| good
2025-10-20T19:00:00.000Z	30 \| good	4.126 \| good	18.131 \| good	32.153 \| good	0.661 \| good	1.672 \| good	0.127 \| good
2025-10-20T20:00:00.000Z	29 \| good	4.245 \| good	19 \| good	30.566 \| good	0.526 \| good	1.951 \| good	0.129 \| good
2025-10-20T21:00:00.000Z	29 \| good	3.795 \| good	16.412 \| good	30.996 \| good	0.392 \| good	2.23 \| good	0.132 \| good
2025-10-20T22:00:00.000Z	28 \| good	3.402 \| good	15.203 \| good	29.896 \| good	0.353 \| good	2.322 \| good	0.132 \| good
2025-10-20T23:00:00.000Z	30 \| good	2.531 \| good	10 \| good	31.939 \| good	0.315 \| good	2.414 \| good	0.132 \| good
2025-10-21T00:00:00.000Z	27 \| good	3.194 \| good	13.842 \| good	29.259 \| good	0.276 \| good	2.506 \| good	0.132 \| good
2025-10-21T01:00:00.000Z	31 \| good	1.6 \| good	6.718 \| good	33.403 \| good	0.476 \| good	2.568 \| good	0.124 \| good
2025-10-21T02:00:00.000Z	30 \| good	2.086 \| good	8.52 \| good	32.252 \| good	0.686 \| good	2.157 \| good	0.119 \| good
2025-10-21T03:00:00.000Z	28 \| good	1.977 \| good	8 \| good	29.911 \| good	0.895 \| good	1.745 \| good	0.113 \| good
2025-10-21T04:00:00.000Z	26 \| good	2.437 \| good	10 \| good	28.409 \| good	0.901 \| good	1.741 \| good	0.116 \| good
2025-10-21T05:00:00.000Z	23 \| good	2.803 \| good	11.333 \| good	25.368 \| good	0.907 \| good	1.738 \| good	0.118 \| good
2025-10-21T06:00:00.000Z	22 \| good	2.435 \| good	10 \| good	23.935 \| good	0.913 \| good	1.734 \| good	0.12 \| good
2025-10-21T07:00:00.000Z	23 \| good	2.383 \| good	9.921 \| good	24.723 \| good	0.79 \| good	1.542 \| good	0.118 \| good
2025-10-21T08:00:00.000Z	22 \| good	2.42 \| good	10 \| good	23.908 \| good	0.668 \| good	1.351 \| good	0.117 \| good
2025-10-21T09:00:00.000Z	21 \| good	2.041 \| good	8.333 \| good	23.073 \| good	0.546 \| good	1.159 \| good	0.115 \| good
2025-10-21T10:00:00.000Z	22 \| good	1.532 \| good	6.333 \| good	24.167 \| good	0.501 \| good	1.081 \| good	0.115 \| good
2025-10-21T11:00:00.000Z	25 \| good	1.128 \| good	4.921 \| good	26.512 \| good	0.456 \| good	1.003 \| good	0.115 \| good
2025-10-21T12:00:00.000Z	21 \| good	0.71 \| good	2.921 \| good	22.735 \| good	0.62 \| good	0.927 \| good	0.121 \| good
2025-10-21T13:00:00.000Z	20 \| good	0.628 \| good	2 \| good	22.083 \| good	0.506 \| good	0.964 \| good	0.123 \| good
2025-10-21T14:00:00.000Z	20 \| good	1.191 \| good	5 \| good	21.543 \| good	0.391 \| good	1.001 \| good	0.125 \| good
2025-10-21T15:00:00.000Z	19 \| good	1.206 \| good	5 \| good	21.265 \| good	0.277 \| good	1.038 \| good	0.127 \| good
2025-10-21T16:00:00.000Z	20 \| good	1.654 \| good	7 \| good	21.562 \| good	0.197 \| good	0.914 \| good	0.124 \| good
2025-10-21T17:00:00.000Z	20 \| good	1.894 \| good	7.921 \| good	22.38 \| good	0.118 \| good	0.79 \| good	0.121 \| good
2025-10-21T18:00:00.000Z	21 \| good	1.698 \| good	7.052 \| good	23.454 \| good	0.038 \| good	0.666 \| good	0.118 \| good
2025-10-21T19:00:00.000Z	23 \| good	1.295 \| good	5 \| good	25.486 \| good	0.03 \| good	0.651 \| good	0.115 \| good
2025-10-21T20:00:00.000Z	27 \| good	0.672 \| good	2.317 \| good	28.901 \| good	0.021 \| good	0.635 \| good	0.112 \| good
2025-10-21T21:00:00.000Z	26 \| good	0.512 \| good	2 \| good	27.666 \| good	0.013 \| good	0.62 \| good	0.109 \| good
2025-10-21T22:00:00.000Z	25 \| good	0.48 \| good	1.921 \| good	26.693 \| good	0.014 \| good	0.758 \| good	0.112 \| good
2025-10-21T23:00:00.000Z	25 \| good	0.305 \| good	1 \| good	27.395 \| good	0.015 \| good	0.896 \| good	0.115 \| good
2025-10-22T00:00:00.000Z	25 \| good	0.232 \| good	1 \| good	26.66 \| good	0.017 \| good	1.057 \| good	0.114 \| good
2025-10-22T01:00:00.000Z	21 \| good	0.632 \| good	2 \| good	23.291 \| good	0.025 \| good	1.062 \| good	0.114 \| good
2025-10-22T02:00:00.000Z	21 \| good	1.14 \| good	5 \| good	22.699 \| good	0.033 \| good	1.068 \| good	0.114 \| good
2025-10-22T03:00:00.000Z	20 \| good	0.977 \| good	4 \| good	21.726 \| good	0.041 \| good	1.074 \| good	0.115 \| good
2025-10-22T04:00:00.000Z	20 \| good	0.984 \| good	4 \| good	21.772 \| good	0.044 \| good	1.113 \| good	0.116 \| good
2025-10-22T05:00:00.000Z	19 \| good	1.312 \| good	5 \| good	21.111 \| good	0.046 \| good	1.152 \| good	0.117 \| good
2025-10-22T06:00:00.000Z	19 \| good	1.581 \| good	6.333 \| good	21.158 \| good	0.049 \| good	1.191 \| good	0.119 \| good
2025-10-22T07:00:00.000Z	19 \| good	1.382 \| good	5.317 \| good	20.789 \| good	0.052 \| good	1.207 \| good	0.12 \| good
2025-10-22T08:00:00.000Z	19 \| good	1.435 \| good	5.921 \| good	20.536 \| good	0.055 \| good	1.222 \| good	0.12 \| good
2025-10-22T09:00:00.000Z	19 \| good	1.359 \| good	5.131 \| good	20.236 \| good	0.059 \| good	1.237 \| good	0.121 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.431 \| good	5.921 \| good	20.704 \| good	0.065 \| good	1.307 \| good	0.122 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.431 \| good	5.921 \| good	20.704 \| good	0.065 \| good	1.307 \| good	0.122 \| good
2025-10-22T11:00:00.000Z	18 \| good	1.486 \| good	6 \| good	19.105 \| good	0.071 \| good	1.379 \| good	0.123 \| good
2025-10-22T12:00:00.000Z	17 \| good	1.559 \| good	6 \| good	18.109 \| good	0.077 \| good	1.449 \| good	0.124 \| good
2025-10-22T13:00:00.000Z	17 \| good	1.721 \| good	7 \| good	18.056 \| good	0.086 \| good	1.376 \| good	0.126 \| good
2025-10-22T14:00:00.000Z	18 \| good	2.522 \| good	10.035 \| good	18.813 \| good	0.095 \| good	1.303 \| good	0.128 \| good
2025-10-22T15:00:00.000Z	19 \| good	2.263 \| good	9.179 \| good	20.305 \| good	0.103 \| good	1.23 \| good	0.13 \| good
2025-10-22T16:00:00.000Z	20 \| good	2.255 \| good	9 \| good	22.196 \| good	0.108 \| good	1.017 \| good	0.127 \| good
2025-10-22T17:00:00.000Z	22 \| good	2.442 \| good	10 \| good	24.311 \| good	0.113 \| good	0.804 \| good	0.123 \| good
2025-10-22T18:00:00.000Z	25 \| good	2.219 \| good	9.035 \| good	26.588 \| good	0.117 \| good	0.592 \| good	0.12 \| good
2025-10-22T19:00:00.000Z	26 \| good	1.849 \| good	7.947 \| good	27.984 \| good	0.134 \| good	0.578 \| good	0.12 \| good
2025-10-22T20:00:00.000Z	26 \| good	1.615 \| good	6.718 \| good	28.409 \| good	0.15 \| good	0.565 \| good	0.121 \| good
2025-10-22T21:00:00.000Z	26 \| good	1.674 \| good	6.917 \| good	28.04 \| good	0.167 \| good	0.552 \| good	0.121 \| good
2025-10-22T22:00:00.000Z	25 \| good	1.526 \| good	6.136 \| good	27.168 \| good	0.179 \| good	1.001 \| good	0.125 \| good
2025-10-22T23:00:00.000Z	22 \| good	1.019 \| good	4.2 \| good	23.881 \| good	0.192 \| good	1.451 \| good	0.13 \| good
2025-10-23T00:00:00.000Z	19 \| good	0.797 \| good	2.947 \| good	21.054 \| good	0.204 \| good	1.9 \| good	0.134 \| good
2025-10-23T01:00:00.000Z	18 \| good	1.73 \| good	7 \| good	18.896 \| good	0.208 \| good	2.157 \| good	0.137 \| good
2025-10-23T02:00:00.000Z	17 \| good	2.304 \| good	9.524 \| good	17.894 \| good	0.212 \| good	2.413 \| good	0.139 \| good
2025-10-23T03:00:00.000Z	15 \| good	2.263 \| good	9.242 \| good	16.067 \| good	0.216 \| good	2.67 \| good	0.141 \| good
2025-10-23T04:00:00.000Z	16 \| good	2.576 \| good	10.36 \| good	14.689 \| good	0.209 \| good	2.77 \| good	0.142 \| good
2025-10-23T05:00:00.000Z	16 \| good	3.282 \| good	14.33 \| good	13.45 \| good	0.202 \| good	2.871 \| good	0.143 \| good
2025-10-23T06:00:00.000Z	22 \| good	3.935 \| good	17.146 \| good	13.075 \| good	0.195 \| good	2.972 \| good	0.144 \| good
2025-10-23T07:00:00.000Z	22 \| good	3.57 \| good	15.873 \| good	12.473 \| good	0.193 \| good	3.048 \| good	0.144 \| good
2025-10-23T08:00:00.000Z	16 \| good	3.439 \| good	15.141 \| good	11.648 \| good	0.19 \| good	3.123 \| good	0.144 \| good
2025-10-23T09:00:00.000Z	16 \| good	3.155 \| good	13.806 \| good	11.667 \| good	0.188 \| good	3.199 \| good	0.144 \| good
2025-10-23T10:00:00.000Z	16 \| good	3.241 \| good	14.33 \| good	11.77 \| good	0.184 \| good	3.323 \| good	0.145 \| good
2025-10-23T11:00:00.000Z	16 \| good	3.143 \| good	13.734 \| good	11.436 \| good	0.181 \| good	3.447 \| good	0.145 \| good
2025-10-23T12:00:00.000Z	16 \| good	2.898 \| good	11.883 \| good	10.696 \| good	0.177 \| good	3.571 \| good	0.146 \| good
2025-10-23T13:00:00.000Z	22 \| good	3.606 \| good	15.883 \| good	10.884 \| good	0.177 \| good	3.261 \| good	0.148 \| good
2025-10-23T14:00:00.000Z	27 \| good	4.907 \| good	21.2 \| good	16.099 \| good	0.177 \| good	2.951 \| good	0.151 \| good
2025-10-23T15:00:00.000Z	27 \| good	4.73 \| good	20.665 \| good	20.501 \| good	0.178 \| good	2.641 \| good	0.153 \| good
2025-10-23T16:00:00.000Z	22 \| good	4.497 \| good	19.917 \| good	23.849 \| good	0.194 \| good	2.013 \| good	0.144 \| good
2025-10-23T17:00:00.000Z	25 \| good	4.451 \| good	19.301 \| good	26.79 \| good	0.21 \| good	1.386 \| good	0.135 \| good
2025-10-23T18:00:00.000Z	27 \| good	4.672 \| good	20.072 \| good	29.405 \| good	0.226 \| good	0.758 \| good	0.126 \| good
2025-10-23T19:00:00.000Z	29 \| good	4.832 \| good	20.985 \| good	30.637 \| good	0.213 \| good	0.7 \| good	0.124 \| good
2025-10-23T20:00:00.000Z	28 \| good	5.165 \| good	22.082 \| good	30.46 \| good	0.2 \| good	0.643 \| good	0.121 \| good
2025-10-23T21:00:00.000Z	33 \| good	5.517 \| good	23.901 \| good	29.849 \| good	0.186 \| good	0.585 \| good	0.119 \| good
2025-10-23T22:00:00.000Z	27 \| good	5.425 \| good	23.185 \| good	28.762 \| good	0.19 \| good	1.62 \| good	0.127 \| good
2025-10-23T23:00:00.000Z	27 \| good	4.787 \| good	20.936 \| good	24.224 \| good	0.194 \| good	2.654 \| good	0.134 \| good
2025-10-24T00:00:00.000Z	27 \| good	4.55 \| good	19.796 \| good	21.735 \| good	0.197 \| good	3.689 \| good	0.142 \| good
2025-10-24T01:00:00.000Z	22 \| good	4.092 \| good	17.941 \| good	20.581 \| good	0.212 \| good	4.45 \| good	0.147 \| good
2025-10-24T02:00:00.000Z	27 \| good	4.672 \| good	20.389 \| good	19.806 \| good	0.227 \| good	5.212 \| good	0.152 \| good
2025-10-24T03:00:00.000Z	27 \| good	4.548 \| good	19.742 \| good	19.881 \| good	0.242 \| good	5.973 \| good	0.157 \| good
2025-10-24T04:00:00.000Z	27 \| good	5.459 \| good	23.316 \| good	17.951 \| good	0.267 \| good	7.446 \| good	0.166 \| good
2025-10-24T05:00:00.000Z	33 \| good	5.861 \| good	25.456 \| good	16.786 \| good	0.291 \| good	8.919 \| good	0.175 \| good
2025-10-24T06:00:00.000Z	33 \| good	6.135 \| good	6.178 \| good	15.534 \| good	0.317 \| good	10.439 \| good	0.183 \| good
2025-10-24T07:00:00.000Z	33 \| good	5.851 \| good	25.204 \| good	14.527 \| good	0.339 \| good	11.795 \| good	0.189 \| good
2025-10-24T08:00:00.000Z	38 \| good	6.544 \| good	29.073 \| good	13.282 \| good	0.363 \| good	13.198 \| good	0.195 \| good
2025-10-24T09:00:00.000Z	38 \| good	6.947 \| good	30.859 \| good	11.997 \| good	0.386 \| good	14.602 \| good	0.2 \| good
2025-10-24T10:00:00.000Z	33 \| good	5.896 \| good	25.853 \| good	10.948 \| good	0.402 \| good	15.796 \| good	0.207 \| good

Mason City, Iowa live air quality index now

Major air pollutants in Mason City, Iowa

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Mason City, Iowa air quality map: Track AQI near you

Air quality in nearby cities

Albert Lea, Minnesota

Austin, Minnesota

Waverly, Iowa

Cedar Falls, Iowa

Waterloo, Iowa

Owatonna, Minnesota

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Frequently asked questions

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What is the current concentration of PM2.5 in Mason City, Iowa?

What is the current concentration of PM10 in Mason City, Iowa?

What is the current concentration of carbon monoxide (CO) in Mason City, Iowa?

What is the current concentration of sulfur dioxide (SO2) in Mason City, Iowa?

What is the current concentration of ozone (O3) in Mason City, Iowa?

What is the current concentration of nitrogen dioxide (NO2) in Mason City, Iowa?

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 Mason City, Iowa?

What is the current concentration of PM₁₀ in Mason City, Iowa?

What is the current concentration of sulfur dioxide (SO₂) in Mason City, Iowa?

What is the current concentration of ozone (O₃) in Mason City, Iowa?

What is the current concentration of nitrogen dioxide (NO₂) in Mason City, Iowa?