What is the current concentration of PM10 in Johnstown, Colorado?

The current PM10 concentration at Johnstown, Colorado is 42.158 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Johnstown, Colorado?

The current sulfur dioxide (SO2) concentration at Johnstown, Colorado is 0.808 ppb.

What is the current concentration of ozone (O3) in Johnstown, Colorado?

The current ozone (O3) concentration at Johnstown, Colorado is 18.598 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Johnstown, Colorado?

The current nitrogen dioxide (NO2) concentration at Johnstown, Colorado is 14.399 ppb.

Johnstown, Colorado live air quality index now

Name: Live air pollution levels in Johnstown, Colorado today
Creator: Ambee

Stay updated with real-time air quality in Johnstown, Colorado 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

Johnstown, Colorado

Last updated: ... (Local time)

Major air pollutants in Johnstown, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

42.16 μg/m³

155

255

425

605+

Ozone (O₃)

18.60 ppb

201

201+

Sulfur Dioxide (SO₂)

0.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.40 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Johnstown, Colorado

Get Live Pollen Counts

Johnstown, Colorado

Scroll To Air Quality Map

Track live Johnstown, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T04:00:00.000Z	44 \| good	3.051 \| good	11.056 \| good	46.831 \| good	0.719 \| good	13.555 \| good	0.404 \| good
2025-10-20T05:00:00.000Z	33 \| good	1.933 \| good	5.953 \| good	35.807 \| good	0.632 \| good	14.082 \| good	0.399 \| good
2025-10-20T06:00:00.000Z	35 \| good	4.119 \| good	21.806 \| good	38.383 \| good	0.682 \| good	10.107 \| good	0.28 \| good
2025-10-20T07:00:00.000Z	38 \| good	2.32 \| good	13.707 \| good	40.711 \| good	0.801 \| good	6.516 \| good	0.21 \| good
2025-10-20T08:00:00.000Z	56 \| moderate	11.676 \| good	16.689 \| good	38.276 \| good	0.947 \| good	5.134 \| good	0.183 \| good
2025-10-20T09:00:00.000Z	56 \| moderate	11.738 \| good	29.421 \| good	43.966 \| good	0.675 \| good	4.993 \| good	0.155 \| good
2025-10-20T10:00:00.000Z	35 \| good	3.649 \| good	32.743 \| good	37.636 \| good	0.617 \| good	8.139 \| good	0.128 \| good
2025-10-20T11:00:00.000Z	43 \| good	2.384 \| good	7.436 \| good	46.149 \| good	0.672 \| good	17.702 \| good	0.115 \| good
2025-10-20T12:00:00.000Z	37 \| good	2.355 \| good	27.297 \| good	40.055 \| good	0.633 \| good	3.464 \| good	0.115 \| good
2025-10-20T13:00:00.000Z	33 \| good	3.087 \| good	22.194 \| good	36.014 \| good	0.448 \| good	2.333 \| good	0.131 \| good
2025-10-20T14:00:00.000Z	37 \| good	3.136 \| good	6.194 \| good	40.434 \| good	0.417 \| good	0.997 \| good	0.159 \| good
2025-10-20T15:00:00.000Z	42 \| good	2.382 \| good	14.638 \| good	45.398 \| good	0.418 \| good	0.949 \| good	0.129 \| good
2025-10-20T16:00:00.000Z	43 \| good	2.751 \| good	14.391 \| good	45.548 \| good	0.532 \| good	0.674 \| good	0.13 \| good
2025-10-20T17:00:00.000Z	44 \| good	1.997 \| good	11.918 \| good	46.556 \| good	0.374 \| good	0.874 \| good	0.128 \| good
2025-10-20T18:00:00.000Z	41 \| good	2.218 \| good	40.042 \| good	43.848 \| good	0.333 \| good	2.447 \| good	0.128 \| good
2025-10-20T19:00:00.000Z	42 \| good	2.08 \| good	13.033 \| good	44.614 \| good	0.33 \| good	2.399 \| good	0.128 \| good
2025-10-20T20:00:00.000Z	44 \| good	1.878 \| good	15.946 \| good	47.02 \| good	0.326 \| good	2.903 \| good	0.128 \| good
2025-10-20T21:00:00.000Z	43 \| good	1.588 \| good	11.302 \| good	46.169 \| good	0.323 \| good	3.334 \| good	0.128 \| good
2025-10-20T22:00:00.000Z	44 \| good	1.636 \| good	14.864 \| good	47.616 \| good	0.357 \| good	2.493 \| good	0.141 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.337 \| good	12.384 \| good	43.356 \| good	0.357 \| good	2.412 \| good	0.143 \| good
2025-10-21T00:00:00.000Z	44 \| good	2.292 \| good	15.965 \| good	47.449 \| good	0.318 \| good	2.709 \| good	0.143 \| good
2025-10-21T01:00:00.000Z	39 \| good	1.7 \| good	12.728 \| good	41.546 \| good	0.315 \| good	1.958 \| good	0.143 \| good
2025-10-21T02:00:00.000Z	40 \| good	1.904 \| good	13.199 \| good	42.766 \| good	0.523 \| good	1.902 \| good	0.156 \| good
2025-10-21T03:00:00.000Z	33 \| good	5.552 \| good	23.811 \| good	20.202 \| good	0.315 \| good	3.764 \| good	0.122 \| good
2025-10-21T04:00:00.000Z	35 \| good	1.87 \| good	6.277 \| good	37.838 \| good	0.328 \| good	1.764 \| good	0.156 \| good
2025-10-21T05:00:00.000Z	36 \| good	2.941 \| good	14.934 \| good	39.368 \| good	0.951 \| good	1.776 \| good	0.184 \| good
2025-10-21T06:00:00.000Z	32 \| good	1.876 \| good	8.505 \| good	34.635 \| good	0.542 \| good	3.814 \| good	0.184 \| good
2025-10-21T07:00:00.000Z	30 \| good	1.9 \| good	12.168 \| good	31.675 \| good	0.326 \| good	6.516 \| good	0.155 \| good
2025-10-21T08:00:00.000Z	26 \| good	2.457 \| good	16.406 \| good	27.652 \| good	0.87 \| good	8.846 \| good	0.17 \| good
2025-10-21T09:00:00.000Z	24 \| good	2.834 \| good	14.898 \| good	25.817 \| good	0.783 \| good	13.73 \| good	0.17 \| good
2025-10-21T10:00:00.000Z	19 \| good	3.394 \| good	13.368 \| good	19.982 \| good	0.585 \| good	17.719 \| good	0.191 \| good
2025-10-21T11:00:00.000Z	23 \| good	3.084 \| good	14.551 \| good	25.484 \| good	0.646 \| good	14.338 \| good	0.17 \| good
2025-10-21T12:00:00.000Z	16 \| good	3.449 \| good	14.654 \| good	16.273 \| good	0.69 \| good	14.982 \| good	0.239 \| good
2025-10-21T13:00:00.000Z	21 \| good	3.452 \| good	19.489 \| good	16.674 \| good	0.964 \| good	21.779 \| good	0.282 \| good
2025-10-21T14:00:00.000Z	27 \| good	4.949 \| good	24.688 \| good	24.79 \| good	0.917 \| good	26.97 \| good	0.415 \| good
2025-10-21T15:00:00.000Z	27 \| good	4.745 \| good	26.01 \| good	28.856 \| good	1.233 \| good	26.95 \| good	0.397 \| good
2025-10-21T16:00:00.000Z	33 \| good	5.579 \| good	29.7 \| good	29.334 \| good	1.025 \| good	24.813 \| good	0.291 \| good
2025-10-21T17:00:00.000Z	28 \| good	4.702 \| good	18.596 \| good	29.928 \| good	0.877 \| good	20.623 \| good	0.219 \| good
2025-10-21T18:00:00.000Z	31 \| good	4.991 \| good	29.017 \| good	33.512 \| good	0.823 \| good	15.437 \| good	0.191 \| good
2025-10-21T19:00:00.000Z	41 \| good	5.163 \| good	44.31 \| good	39.055 \| good	0.649 \| good	12.644 \| good	0.156 \| good
2025-10-21T20:00:00.000Z	41 \| good	5.782 \| good	39.343 \| good	44.254 \| good	0.997 \| good	9.359 \| good	0.171 \| good
2025-10-21T21:00:00.000Z	42 \| good	5.225 \| good	24.102 \| good	45.34 \| good	0.761 \| good	6.52 \| good	0.185 \| good
2025-10-21T22:00:00.000Z	43 \| good	4.103 \| good	23.929 \| good	46.035 \| good	0.699 \| good	7.411 \| good	0.17 \| good
2025-10-21T23:00:00.000Z	44 \| good	3.744 \| good	29.27 \| good	46.627 \| good	0.614 \| good	10.325 \| good	0.17 \| good
2025-10-22T00:00:00.000Z	45 \| good	4.944 \| good	39.431 \| good	48.538 \| good	0.717 \| good	11.707 \| good	0.232 \| good
2025-10-22T01:00:00.000Z	54 \| moderate	6.511 \| good	61.336 \| fine	39.208 \| good	0.644 \| good	22.909 \| good	0.449 \| good
2025-10-22T02:00:00.000Z	38 \| good	6.23 \| good	32.841 \| good	40.717 \| good	0.767 \| good	12.266 \| good	0.48 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.408 \| good	42.158 \| good	18.598 \| good	0.808 \| good	14.399 \| good	0.214 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.408 \| good	42.158 \| good	18.598 \| good	0.808 \| good	14.399 \| good	0.214 \| good
2025-10-22T04:00:00.000Z	52 \| moderate	9.988 \| good	44.482 \| good	17.214 \| good	0.704 \| good	14.416 \| good	0.216 \| good
2025-10-22T05:00:00.000Z	52 \| moderate	9.859 \| good	43.919 \| good	19.565 \| good	0.631 \| good	14.724 \| good	0.222 \| good
2025-10-22T06:00:00.000Z	44 \| good	8.415 \| good	37.063 \| good	20.078 \| good	0.557 \| good	15.031 \| good	0.227 \| good
2025-10-22T07:00:00.000Z	38 \| good	7.119 \| good	31.811 \| good	20.32 \| good	0.496 \| good	13.89 \| good	0.217 \| good
2025-10-22T08:00:00.000Z	27 \| good	4.857 \| good	21.111 \| good	20.788 \| good	0.435 \| good	12.748 \| good	0.207 \| good
2025-10-22T09:00:00.000Z	27 \| good	5.393 \| good	23.523 \| good	19.286 \| good	0.374 \| good	11.606 \| good	0.197 \| good
2025-10-22T10:00:00.000Z	27 \| good	4.681 \| good	20.575 \| good	18.63 \| good	0.352 \| good	11.332 \| good	0.192 \| good
2025-10-22T11:00:00.000Z	22 \| good	3.569 \| good	15.555 \| good	17.318 \| good	0.331 \| good	11.059 \| good	0.187 \| good
2025-10-22T12:00:00.000Z	16 \| good	3.253 \| good	14.322 \| good	14.599 \| good	0.309 \| good	10.785 \| good	0.183 \| good
2025-10-22T13:00:00.000Z	22 \| good	3.908 \| good	17.135 \| good	10.982 \| good	0.354 \| good	9.996 \| good	0.212 \| good
2025-10-22T14:00:00.000Z	38 \| good	6.846 \| good	30.08 \| good	14.166 \| good	0.399 \| good	9.206 \| good	0.24 \| good
2025-10-22T15:00:00.000Z	38 \| good	7.227 \| good	31.875 \| good	21.131 \| good	0.444 \| good	8.416 \| good	0.269 \| good
2025-10-22T16:00:00.000Z	38 \| good	7.432 \| good	32.809 \| good	26.096 \| good	0.534 \| good	6.845 \| good	0.224 \| good
2025-10-22T17:00:00.000Z	33 \| good	5.758 \| good	24.855 \| good	32.628 \| good	0.624 \| good	5.274 \| good	0.18 \| good
2025-10-22T18:00:00.000Z	34 \| good	6.346 \| good	28.01 \| good	37.416 \| good	0.714 \| good	3.703 \| good	0.135 \| good
2025-10-22T19:00:00.000Z	38 \| good	6.723 \| good	29.954 \| good	40.061 \| good	0.703 \| good	3.327 \| good	0.131 \| good
2025-10-22T20:00:00.000Z	40 \| good	6.704 \| good	29.99 \| good	43.167 \| good	0.692 \| good	2.952 \| good	0.127 \| good
2025-10-22T21:00:00.000Z	42 \| good	5.773 \| good	25.427 \| good	44.845 \| good	0.681 \| good	2.577 \| good	0.123 \| good
2025-10-22T22:00:00.000Z	43 \| good	5.735 \| good	24.929 \| good	46.096 \| good	0.614 \| good	3.426 \| good	0.13 \| good
2025-10-22T23:00:00.000Z	44 \| good	7.634 \| good	33.44 \| good	41.8 \| good	0.547 \| good	4.275 \| good	0.137 \| good
2025-10-23T00:00:00.000Z	52 \| moderate	9.997 \| good	44.348 \| good	34.543 \| good	0.48 \| good	5.124 \| good	0.145 \| good
2025-10-23T01:00:00.000Z	52 \| moderate	10.253 \| good	45.577 \| good	28.74 \| good	0.581 \| good	7.507 \| good	0.166 \| good
2025-10-23T02:00:00.000Z	58 \| moderate	12.654 \| fine	57.05 \| fine	22.456 \| good	0.682 \| good	9.889 \| good	0.187 \| good
2025-10-23T03:00:00.000Z	58 \| moderate	12.868 \| fine	58.282 \| fine	20.448 \| good	0.784 \| good	12.271 \| good	0.208 \| good
2025-10-23T04:00:00.000Z	58 \| moderate	12.998 \| fine	58.245 \| fine	18.132 \| good	0.733 \| good	12.386 \| good	0.21 \| good
2025-10-23T05:00:00.000Z	56 \| moderate	11.776 \| good	52.879 \| good	18.206 \| good	0.683 \| good	12.5 \| good	0.212 \| good
2025-10-23T06:00:00.000Z	54 \| moderate	10.766 \| good	47.835 \| good	19.014 \| good	0.633 \| good	12.615 \| good	0.214 \| good
2025-10-23T07:00:00.000Z	49 \| good	8.737 \| good	38.299 \| good	21.089 \| good	0.579 \| good	11.857 \| good	0.205 \| good
2025-10-23T08:00:00.000Z	38 \| good	6.558 \| good	29.041 \| good	21.721 \| good	0.526 \| good	11.1 \| good	0.195 \| good
2025-10-23T09:00:00.000Z	27 \| good	4.951 \| good	21.392 \| good	18.717 \| good	0.472 \| good	10.342 \| good	0.185 \| good
2025-10-23T10:00:00.000Z	27 \| good	4.601 \| good	19.969 \| good	17.748 \| good	0.435 \| good	9.974 \| good	0.18 \| good
2025-10-23T11:00:00.000Z	33 \| good	5.981 \| good	26.963 \| good	18.842 \| good	0.398 \| good	9.605 \| good	0.174 \| good
2025-10-23T12:00:00.000Z	27 \| good	4.806 \| good	21.189 \| good	14.902 \| good	0.361 \| good	9.237 \| good	0.168 \| good
2025-10-23T13:00:00.000Z	27 \| good	5.33 \| good	23.384 \| good	10.524 \| good	0.381 \| good	8.925 \| good	0.194 \| good
2025-10-23T14:00:00.000Z	44 \| good	8.337 \| good	37.081 \| good	11.254 \| good	0.402 \| good	8.614 \| good	0.219 \| good
2025-10-23T15:00:00.000Z	49 \| good	9.412 \| good	41.818 \| good	18.888 \| good	0.423 \| good	8.303 \| good	0.245 \| good
2025-10-23T16:00:00.000Z	49 \| good	9.222 \| good	40.959 \| good	26.764 \| good	0.503 \| good	6.929 \| good	0.213 \| good
2025-10-23T17:00:00.000Z	44 \| good	8.484 \| good	37.027 \| good	32.323 \| good	0.584 \| good	5.556 \| good	0.182 \| good
2025-10-23T18:00:00.000Z	44 \| good	7.659 \| good	33.38 \| good	36.849 \| good	0.665 \| good	4.182 \| good	0.15 \| good
2025-10-23T19:00:00.000Z	39 \| good	7.038 \| good	31.188 \| good	41.636 \| good	0.606 \| good	3.602 \| good	0.14 \| good
2025-10-23T20:00:00.000Z	41 \| good	7.367 \| good	32.292 \| good	44.006 \| good	0.548 \| good	3.021 \| good	0.13 \| good
2025-10-23T21:00:00.000Z	44 \| good	6.597 \| good	29.185 \| good	46.521 \| good	0.489 \| good	2.441 \| good	0.12 \| good
2025-10-23T22:00:00.000Z	44 \| good	5.497 \| good	23.813 \| good	47.627 \| good	0.5 \| good	4.251 \| good	0.137 \| good
2025-10-23T23:00:00.000Z	40 \| good	5.507 \| good	23.761 \| good	42.751 \| good	0.51 \| good	6.062 \| good	0.154 \| good
2025-10-24T00:00:00.000Z	32 \| good	4.629 \| good	5.137 \| good	35.44 \| good	0.518 \| good	7.967 \| good	0.173 \| good
2025-10-24T01:00:00.000Z	33 \| good	5.995 \| good	26.637 \| good	30.548 \| good	0.537 \| good	8.316 \| good	0.176 \| good
2025-10-24T02:00:00.000Z	27 \| good	5.065 \| good	22.181 \| good	26.061 \| good	0.553 \| good	8.759 \| good	0.182 \| good
2025-10-24T03:00:00.000Z	25 \| good	3.075 \| good	13.402 \| good	27.01 \| good	0.569 \| good	9.202 \| good	0.187 \| good

Johnstown

Get reliable air quality data to drive your business

Johnstown, Colorado air quality map: Track AQI near you

0.52ppm

How accurate is Colorado, USA air quality data?

Air quality data and pollutant measurements for Colorado, 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 Johnstown, Colorado updated?

The air quality for Johnstown, Colorado is updated every hour.

When was the worst air quality at Johnstown, Colorado in the last 24 hrs?

The worst air quality in Johnstown, Colorado in the last 24 hours was observed at 01:00:00 on 2025-10-22.

When was the best air quality at Johnstown, Colorado in the last 24 hrs?

In the last 24 hrs, the best air quality in Johnstown, Colorado was observed at 12:00:00 on 2025-10-21.

What is the current air quality in Johnstown, Colorado?

The current air quality in Johnstown, Colorado is 49, categorized as Good based on real-time data.

What pollutant is the most common in Johnstown, Colorado?

The most common pollutant in Johnstown, Colorado is PM2.5.

What should I do if the air quality in Johnstown, Colorado is poor?

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

What is the current concentration of PM_2.5 in Johnstown, Colorado?

The current PM_2.5 concentration at Johnstown, Colorado is 9.408 μg/m³.

What is the current concentration of PM₁₀ in Johnstown, Colorado?

The current PM₁₀ concentration at Johnstown, Colorado is 42.158 μg/m³.

What is the current concentration of carbon monoxide (CO) in Johnstown, Colorado?

The current carbon monoxide (CO) concentration at Johnstown, Colorado is 0.214 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Johnstown, Colorado?

The current sulfur dioxide (SO₂) concentration at Johnstown, Colorado is 0.808 ppb.

What is the current concentration of ozone (O₃) in Johnstown, Colorado?

The current ozone (O₃) concentration at Johnstown, Colorado is 18.598 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Johnstown, Colorado?

The current nitrogen dioxide (NO₂) concentration at Johnstown, Colorado is 14.399 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T04:00:00.000Z	44 \| good	3.051 \| good	11.056 \| good	46.831 \| good	0.719 \| good	13.555 \| good	0.404 \| good
2025-10-20T05:00:00.000Z	33 \| good	1.933 \| good	5.953 \| good	35.807 \| good	0.632 \| good	14.082 \| good	0.399 \| good
2025-10-20T06:00:00.000Z	35 \| good	4.119 \| good	21.806 \| good	38.383 \| good	0.682 \| good	10.107 \| good	0.28 \| good
2025-10-20T07:00:00.000Z	38 \| good	2.32 \| good	13.707 \| good	40.711 \| good	0.801 \| good	6.516 \| good	0.21 \| good
2025-10-20T08:00:00.000Z	56 \| moderate	11.676 \| good	16.689 \| good	38.276 \| good	0.947 \| good	5.134 \| good	0.183 \| good
2025-10-20T09:00:00.000Z	56 \| moderate	11.738 \| good	29.421 \| good	43.966 \| good	0.675 \| good	4.993 \| good	0.155 \| good
2025-10-20T10:00:00.000Z	35 \| good	3.649 \| good	32.743 \| good	37.636 \| good	0.617 \| good	8.139 \| good	0.128 \| good
2025-10-20T11:00:00.000Z	43 \| good	2.384 \| good	7.436 \| good	46.149 \| good	0.672 \| good	17.702 \| good	0.115 \| good
2025-10-20T12:00:00.000Z	37 \| good	2.355 \| good	27.297 \| good	40.055 \| good	0.633 \| good	3.464 \| good	0.115 \| good
2025-10-20T13:00:00.000Z	33 \| good	3.087 \| good	22.194 \| good	36.014 \| good	0.448 \| good	2.333 \| good	0.131 \| good
2025-10-20T14:00:00.000Z	37 \| good	3.136 \| good	6.194 \| good	40.434 \| good	0.417 \| good	0.997 \| good	0.159 \| good
2025-10-20T15:00:00.000Z	42 \| good	2.382 \| good	14.638 \| good	45.398 \| good	0.418 \| good	0.949 \| good	0.129 \| good
2025-10-20T16:00:00.000Z	43 \| good	2.751 \| good	14.391 \| good	45.548 \| good	0.532 \| good	0.674 \| good	0.13 \| good
2025-10-20T17:00:00.000Z	44 \| good	1.997 \| good	11.918 \| good	46.556 \| good	0.374 \| good	0.874 \| good	0.128 \| good
2025-10-20T18:00:00.000Z	41 \| good	2.218 \| good	40.042 \| good	43.848 \| good	0.333 \| good	2.447 \| good	0.128 \| good
2025-10-20T19:00:00.000Z	42 \| good	2.08 \| good	13.033 \| good	44.614 \| good	0.33 \| good	2.399 \| good	0.128 \| good
2025-10-20T20:00:00.000Z	44 \| good	1.878 \| good	15.946 \| good	47.02 \| good	0.326 \| good	2.903 \| good	0.128 \| good
2025-10-20T21:00:00.000Z	43 \| good	1.588 \| good	11.302 \| good	46.169 \| good	0.323 \| good	3.334 \| good	0.128 \| good
2025-10-20T22:00:00.000Z	44 \| good	1.636 \| good	14.864 \| good	47.616 \| good	0.357 \| good	2.493 \| good	0.141 \| good
2025-10-20T23:00:00.000Z	40 \| good	2.337 \| good	12.384 \| good	43.356 \| good	0.357 \| good	2.412 \| good	0.143 \| good
2025-10-21T00:00:00.000Z	44 \| good	2.292 \| good	15.965 \| good	47.449 \| good	0.318 \| good	2.709 \| good	0.143 \| good
2025-10-21T01:00:00.000Z	39 \| good	1.7 \| good	12.728 \| good	41.546 \| good	0.315 \| good	1.958 \| good	0.143 \| good
2025-10-21T02:00:00.000Z	40 \| good	1.904 \| good	13.199 \| good	42.766 \| good	0.523 \| good	1.902 \| good	0.156 \| good
2025-10-21T03:00:00.000Z	33 \| good	5.552 \| good	23.811 \| good	20.202 \| good	0.315 \| good	3.764 \| good	0.122 \| good
2025-10-21T04:00:00.000Z	35 \| good	1.87 \| good	6.277 \| good	37.838 \| good	0.328 \| good	1.764 \| good	0.156 \| good
2025-10-21T05:00:00.000Z	36 \| good	2.941 \| good	14.934 \| good	39.368 \| good	0.951 \| good	1.776 \| good	0.184 \| good
2025-10-21T06:00:00.000Z	32 \| good	1.876 \| good	8.505 \| good	34.635 \| good	0.542 \| good	3.814 \| good	0.184 \| good
2025-10-21T07:00:00.000Z	30 \| good	1.9 \| good	12.168 \| good	31.675 \| good	0.326 \| good	6.516 \| good	0.155 \| good
2025-10-21T08:00:00.000Z	26 \| good	2.457 \| good	16.406 \| good	27.652 \| good	0.87 \| good	8.846 \| good	0.17 \| good
2025-10-21T09:00:00.000Z	24 \| good	2.834 \| good	14.898 \| good	25.817 \| good	0.783 \| good	13.73 \| good	0.17 \| good
2025-10-21T10:00:00.000Z	19 \| good	3.394 \| good	13.368 \| good	19.982 \| good	0.585 \| good	17.719 \| good	0.191 \| good
2025-10-21T11:00:00.000Z	23 \| good	3.084 \| good	14.551 \| good	25.484 \| good	0.646 \| good	14.338 \| good	0.17 \| good
2025-10-21T12:00:00.000Z	16 \| good	3.449 \| good	14.654 \| good	16.273 \| good	0.69 \| good	14.982 \| good	0.239 \| good
2025-10-21T13:00:00.000Z	21 \| good	3.452 \| good	19.489 \| good	16.674 \| good	0.964 \| good	21.779 \| good	0.282 \| good
2025-10-21T14:00:00.000Z	27 \| good	4.949 \| good	24.688 \| good	24.79 \| good	0.917 \| good	26.97 \| good	0.415 \| good
2025-10-21T15:00:00.000Z	27 \| good	4.745 \| good	26.01 \| good	28.856 \| good	1.233 \| good	26.95 \| good	0.397 \| good
2025-10-21T16:00:00.000Z	33 \| good	5.579 \| good	29.7 \| good	29.334 \| good	1.025 \| good	24.813 \| good	0.291 \| good
2025-10-21T17:00:00.000Z	28 \| good	4.702 \| good	18.596 \| good	29.928 \| good	0.877 \| good	20.623 \| good	0.219 \| good
2025-10-21T18:00:00.000Z	31 \| good	4.991 \| good	29.017 \| good	33.512 \| good	0.823 \| good	15.437 \| good	0.191 \| good
2025-10-21T19:00:00.000Z	41 \| good	5.163 \| good	44.31 \| good	39.055 \| good	0.649 \| good	12.644 \| good	0.156 \| good
2025-10-21T20:00:00.000Z	41 \| good	5.782 \| good	39.343 \| good	44.254 \| good	0.997 \| good	9.359 \| good	0.171 \| good
2025-10-21T21:00:00.000Z	42 \| good	5.225 \| good	24.102 \| good	45.34 \| good	0.761 \| good	6.52 \| good	0.185 \| good
2025-10-21T22:00:00.000Z	43 \| good	4.103 \| good	23.929 \| good	46.035 \| good	0.699 \| good	7.411 \| good	0.17 \| good
2025-10-21T23:00:00.000Z	44 \| good	3.744 \| good	29.27 \| good	46.627 \| good	0.614 \| good	10.325 \| good	0.17 \| good
2025-10-22T00:00:00.000Z	45 \| good	4.944 \| good	39.431 \| good	48.538 \| good	0.717 \| good	11.707 \| good	0.232 \| good
2025-10-22T01:00:00.000Z	54 \| moderate	6.511 \| good	61.336 \| fine	39.208 \| good	0.644 \| good	22.909 \| good	0.449 \| good
2025-10-22T02:00:00.000Z	38 \| good	6.23 \| good	32.841 \| good	40.717 \| good	0.767 \| good	12.266 \| good	0.48 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.408 \| good	42.158 \| good	18.598 \| good	0.808 \| good	14.399 \| good	0.214 \| good
2025-10-22T03:00:00.000Z	49 \| good	9.408 \| good	42.158 \| good	18.598 \| good	0.808 \| good	14.399 \| good	0.214 \| good
2025-10-22T04:00:00.000Z	52 \| moderate	9.988 \| good	44.482 \| good	17.214 \| good	0.704 \| good	14.416 \| good	0.216 \| good
2025-10-22T05:00:00.000Z	52 \| moderate	9.859 \| good	43.919 \| good	19.565 \| good	0.631 \| good	14.724 \| good	0.222 \| good
2025-10-22T06:00:00.000Z	44 \| good	8.415 \| good	37.063 \| good	20.078 \| good	0.557 \| good	15.031 \| good	0.227 \| good
2025-10-22T07:00:00.000Z	38 \| good	7.119 \| good	31.811 \| good	20.32 \| good	0.496 \| good	13.89 \| good	0.217 \| good
2025-10-22T08:00:00.000Z	27 \| good	4.857 \| good	21.111 \| good	20.788 \| good	0.435 \| good	12.748 \| good	0.207 \| good
2025-10-22T09:00:00.000Z	27 \| good	5.393 \| good	23.523 \| good	19.286 \| good	0.374 \| good	11.606 \| good	0.197 \| good
2025-10-22T10:00:00.000Z	27 \| good	4.681 \| good	20.575 \| good	18.63 \| good	0.352 \| good	11.332 \| good	0.192 \| good
2025-10-22T11:00:00.000Z	22 \| good	3.569 \| good	15.555 \| good	17.318 \| good	0.331 \| good	11.059 \| good	0.187 \| good
2025-10-22T12:00:00.000Z	16 \| good	3.253 \| good	14.322 \| good	14.599 \| good	0.309 \| good	10.785 \| good	0.183 \| good
2025-10-22T13:00:00.000Z	22 \| good	3.908 \| good	17.135 \| good	10.982 \| good	0.354 \| good	9.996 \| good	0.212 \| good
2025-10-22T14:00:00.000Z	38 \| good	6.846 \| good	30.08 \| good	14.166 \| good	0.399 \| good	9.206 \| good	0.24 \| good
2025-10-22T15:00:00.000Z	38 \| good	7.227 \| good	31.875 \| good	21.131 \| good	0.444 \| good	8.416 \| good	0.269 \| good
2025-10-22T16:00:00.000Z	38 \| good	7.432 \| good	32.809 \| good	26.096 \| good	0.534 \| good	6.845 \| good	0.224 \| good
2025-10-22T17:00:00.000Z	33 \| good	5.758 \| good	24.855 \| good	32.628 \| good	0.624 \| good	5.274 \| good	0.18 \| good
2025-10-22T18:00:00.000Z	34 \| good	6.346 \| good	28.01 \| good	37.416 \| good	0.714 \| good	3.703 \| good	0.135 \| good
2025-10-22T19:00:00.000Z	38 \| good	6.723 \| good	29.954 \| good	40.061 \| good	0.703 \| good	3.327 \| good	0.131 \| good
2025-10-22T20:00:00.000Z	40 \| good	6.704 \| good	29.99 \| good	43.167 \| good	0.692 \| good	2.952 \| good	0.127 \| good
2025-10-22T21:00:00.000Z	42 \| good	5.773 \| good	25.427 \| good	44.845 \| good	0.681 \| good	2.577 \| good	0.123 \| good
2025-10-22T22:00:00.000Z	43 \| good	5.735 \| good	24.929 \| good	46.096 \| good	0.614 \| good	3.426 \| good	0.13 \| good
2025-10-22T23:00:00.000Z	44 \| good	7.634 \| good	33.44 \| good	41.8 \| good	0.547 \| good	4.275 \| good	0.137 \| good
2025-10-23T00:00:00.000Z	52 \| moderate	9.997 \| good	44.348 \| good	34.543 \| good	0.48 \| good	5.124 \| good	0.145 \| good
2025-10-23T01:00:00.000Z	52 \| moderate	10.253 \| good	45.577 \| good	28.74 \| good	0.581 \| good	7.507 \| good	0.166 \| good
2025-10-23T02:00:00.000Z	58 \| moderate	12.654 \| fine	57.05 \| fine	22.456 \| good	0.682 \| good	9.889 \| good	0.187 \| good
2025-10-23T03:00:00.000Z	58 \| moderate	12.868 \| fine	58.282 \| fine	20.448 \| good	0.784 \| good	12.271 \| good	0.208 \| good
2025-10-23T04:00:00.000Z	58 \| moderate	12.998 \| fine	58.245 \| fine	18.132 \| good	0.733 \| good	12.386 \| good	0.21 \| good
2025-10-23T05:00:00.000Z	56 \| moderate	11.776 \| good	52.879 \| good	18.206 \| good	0.683 \| good	12.5 \| good	0.212 \| good
2025-10-23T06:00:00.000Z	54 \| moderate	10.766 \| good	47.835 \| good	19.014 \| good	0.633 \| good	12.615 \| good	0.214 \| good
2025-10-23T07:00:00.000Z	49 \| good	8.737 \| good	38.299 \| good	21.089 \| good	0.579 \| good	11.857 \| good	0.205 \| good
2025-10-23T08:00:00.000Z	38 \| good	6.558 \| good	29.041 \| good	21.721 \| good	0.526 \| good	11.1 \| good	0.195 \| good
2025-10-23T09:00:00.000Z	27 \| good	4.951 \| good	21.392 \| good	18.717 \| good	0.472 \| good	10.342 \| good	0.185 \| good
2025-10-23T10:00:00.000Z	27 \| good	4.601 \| good	19.969 \| good	17.748 \| good	0.435 \| good	9.974 \| good	0.18 \| good
2025-10-23T11:00:00.000Z	33 \| good	5.981 \| good	26.963 \| good	18.842 \| good	0.398 \| good	9.605 \| good	0.174 \| good
2025-10-23T12:00:00.000Z	27 \| good	4.806 \| good	21.189 \| good	14.902 \| good	0.361 \| good	9.237 \| good	0.168 \| good
2025-10-23T13:00:00.000Z	27 \| good	5.33 \| good	23.384 \| good	10.524 \| good	0.381 \| good	8.925 \| good	0.194 \| good
2025-10-23T14:00:00.000Z	44 \| good	8.337 \| good	37.081 \| good	11.254 \| good	0.402 \| good	8.614 \| good	0.219 \| good
2025-10-23T15:00:00.000Z	49 \| good	9.412 \| good	41.818 \| good	18.888 \| good	0.423 \| good	8.303 \| good	0.245 \| good
2025-10-23T16:00:00.000Z	49 \| good	9.222 \| good	40.959 \| good	26.764 \| good	0.503 \| good	6.929 \| good	0.213 \| good
2025-10-23T17:00:00.000Z	44 \| good	8.484 \| good	37.027 \| good	32.323 \| good	0.584 \| good	5.556 \| good	0.182 \| good
2025-10-23T18:00:00.000Z	44 \| good	7.659 \| good	33.38 \| good	36.849 \| good	0.665 \| good	4.182 \| good	0.15 \| good
2025-10-23T19:00:00.000Z	39 \| good	7.038 \| good	31.188 \| good	41.636 \| good	0.606 \| good	3.602 \| good	0.14 \| good
2025-10-23T20:00:00.000Z	41 \| good	7.367 \| good	32.292 \| good	44.006 \| good	0.548 \| good	3.021 \| good	0.13 \| good
2025-10-23T21:00:00.000Z	44 \| good	6.597 \| good	29.185 \| good	46.521 \| good	0.489 \| good	2.441 \| good	0.12 \| good
2025-10-23T22:00:00.000Z	44 \| good	5.497 \| good	23.813 \| good	47.627 \| good	0.5 \| good	4.251 \| good	0.137 \| good
2025-10-23T23:00:00.000Z	40 \| good	5.507 \| good	23.761 \| good	42.751 \| good	0.51 \| good	6.062 \| good	0.154 \| good
2025-10-24T00:00:00.000Z	32 \| good	4.629 \| good	5.137 \| good	35.44 \| good	0.518 \| good	7.967 \| good	0.173 \| good
2025-10-24T01:00:00.000Z	33 \| good	5.995 \| good	26.637 \| good	30.548 \| good	0.537 \| good	8.316 \| good	0.176 \| good
2025-10-24T02:00:00.000Z	27 \| good	5.065 \| good	22.181 \| good	26.061 \| good	0.553 \| good	8.759 \| good	0.182 \| good
2025-10-24T03:00:00.000Z	25 \| good	3.075 \| good	13.402 \| good	27.01 \| good	0.569 \| good	9.202 \| good	0.187 \| good

Johnstown, Colorado live air quality index now

Major air pollutants in Johnstown, Colorado

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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Windsor, Colorado

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Severance, Colorado

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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 Johnstown, Colorado?

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What is the current concentration of nitrogen dioxide (NO₂) in Johnstown, Colorado?