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

The current PM10 concentration at Johnstown, Colorado is 35.862 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Johnstown, Colorado is 0.816 ppb.

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

The current ozone (O3) concentration at Johnstown, Colorado is 49.825 ppm.

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

The current nitrogen dioxide (NO2) concentration at Johnstown, Colorado is 5.274 ppb.

Johnstown, Colorado live air quality index now

Q: What is the current concentration of PM2.5 in Johnstown, Colorado?

The current PM2.5 concentration at Johnstown, Colorado is 11.035 μg/m3.

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)

Moderate

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)

11.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

35.86 μg/m³

155

255

425

605+

Ozone (O₃)

49.83 ppb

201

201+

Sulfur Dioxide (SO₂)

0.82 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.27 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 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
2026-07-21T22:00:00.000Z	93 \| moderate	14.653 \| fine	61.697 \| fine	67.726 \| fine	0.659 \| good	2.004 \| good	0.156 \| good
2026-07-21T23:00:00.000Z	97 \| moderate	11.336 \| good	51.263 \| good	69.466 \| fine	0.606 \| good	1.653 \| good	0.156 \| good
2026-07-22T00:00:00.000Z	77 \| moderate	9.985 \| good	41.318 \| good	63.17 \| fine	0.601 \| good	1.608 \| good	0.191 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	9.617 \| good	49.002 \| good	66.207 \| fine	0.818 \| good	1.863 \| good	0.163 \| good
2026-07-22T02:00:00.000Z	58 \| moderate	9.519 \| good	34.055 \| good	56.971 \| fine	0.506 \| good	2.566 \| good	0.191 \| good
2026-07-22T03:00:00.000Z	58 \| moderate	10.096 \| good	44.191 \| good	57.002 \| fine	0.507 \| good	4.097 \| good	0.191 \| good
2026-07-22T04:00:00.000Z	52 \| moderate	9.031 \| good	56.534 \| fine	50.124 \| good	0.529 \| good	6.113 \| good	0.199 \| good
2026-07-22T05:00:00.000Z	49 \| good	7.136 \| good	31.883 \| good	52.827 \| good	0.716 \| good	9.587 \| good	0.191 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	7.08 \| good	26.158 \| good	56.113 \| fine	0.549 \| good	5.852 \| good	0.163 \| good
2026-07-22T07:00:00.000Z	44 \| good	5.813 \| good	22.027 \| good	47.984 \| good	0.613 \| good	3.83 \| good	0.129 \| good
2026-07-22T08:00:00.000Z	40 \| good	5.264 \| good	19.853 \| good	42.697 \| good	0.657 \| good	5.85 \| good	0.129 \| good
2026-07-22T09:00:00.000Z	36 \| good	5.825 \| good	23.48 \| good	39.378 \| good	0.451 \| good	5.99 \| good	0.129 \| good
2026-07-22T10:00:00.000Z	42 \| good	5.684 \| good	19.351 \| good	44.563 \| good	0.476 \| good	6.615 \| good	0.129 \| good
2026-07-22T11:00:00.000Z	35 \| good	5.777 \| good	21.267 \| good	37.785 \| good	0.606 \| good	7.595 \| good	0.143 \| good
2026-07-22T12:00:00.000Z	33 \| good	5.86 \| good	22.534 \| good	31.179 \| good	0.554 \| good	10.26 \| good	0.232 \| good
2026-07-22T13:00:00.000Z	38 \| good	7.368 \| good	38.32 \| good	40.721 \| good	0.559 \| good	10.556 \| good	0.232 \| good
2026-07-22T14:00:00.000Z	44 \| good	8.456 \| good	36.26 \| good	37.428 \| good	0.719 \| good	10.355 \| good	0.261 \| good
2026-07-22T15:00:00.000Z	77 \| moderate	22.929 \| fine	75.222 \| fine	46.865 \| good	1.052 \| good	8.668 \| good	0.261 \| good
2026-07-22T16:00:00.000Z	52 \| moderate	10.003 \| good	43.542 \| good	43.381 \| good	0.655 \| good	5.61 \| good	0.232 \| good
2026-07-22T17:00:00.000Z	52 \| moderate	10.412 \| good	34.217 \| good	48.741 \| good	0.832 \| good	6.299 \| good	0.204 \| good
2026-07-22T18:00:00.000Z	86 \| moderate	27.671 \| fine	30.163 \| good	52.646 \| good	0.837 \| good	4.729 \| good	0.215 \| good
2026-07-22T19:00:00.000Z	64 \| moderate	8.725 \| good	33.193 \| good	58.989 \| fine	0.714 \| good	4.127 \| good	0.215 \| good
2026-07-22T20:00:00.000Z	80 \| moderate	9.492 \| good	31.448 \| good	63.558 \| fine	0.631 \| good	4.287 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	97 \| moderate	10.605 \| good	49.758 \| good	68.733 \| fine	0.654 \| good	3.277 \| good	0.246 \| good
2026-07-22T22:00:00.000Z	97 \| moderate	10.691 \| good	38.384 \| good	69.474 \| fine	0.686 \| good	4.142 \| good	0.259 \| good
2026-07-22T23:00:00.000Z	100 \| moderate	10.006 \| good	39.86 \| good	69.876 \| fine	0.608 \| good	5.99 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	77 \| moderate	10.085 \| good	36.872 \| good	63.075 \| fine	0.56 \| good	6.461 \| good	0.215 \| good
2026-07-23T01:00:00.000Z	74 \| moderate	10.022 \| good	40.839 \| good	62.205 \| fine	0.532 \| good	5.465 \| good	0.23 \| good
2026-07-23T02:00:00.000Z	51 \| moderate	8.64 \| good	31.267 \| good	54.517 \| good	0.562 \| good	6.138 \| good	0.23 \| good
2026-07-23T03:00:00.000Z	49 \| good	8.742 \| good	38.507 \| good	42.249 \| good	0.209 \| good	3.763 \| good	0.141 \| good
2026-07-23T04:00:00.000Z	44 \| good	7.715 \| good	19.918 \| good	47.387 \| good	0.609 \| good	9.034 \| good	0.215 \| good
2026-07-23T05:00:00.000Z	42 \| good	6.172 \| good	26.951 \| good	45.149 \| good	0.555 \| good	8.364 \| good	0.178 \| good
2026-07-23T06:00:00.000Z	39 \| good	4.558 \| good	17.152 \| good	42.228 \| good	0.501 \| good	9.22 \| good	0.163 \| good
2026-07-23T07:00:00.000Z	36 \| good	5.307 \| good	22.03 \| good	39.318 \| good	0.45 \| good	9.037 \| good	0.148 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.724 \| good	29.115 \| good	30.788 \| good	0.499 \| good	9.666 \| good	0.163 \| good
2026-07-23T09:00:00.000Z	33 \| good	6.414 \| good	24.304 \| good	27.971 \| good	0.633 \| good	10.941 \| good	0.163 \| good
2026-07-23T10:00:00.000Z	38 \| good	7.437 \| good	22.902 \| good	23.891 \| good	0.754 \| good	13.828 \| good	0.163 \| good
2026-07-23T11:00:00.000Z	33 \| good	6.085 \| good	21.809 \| good	24.232 \| good	0.816 \| good	14.916 \| good	0.149 \| good
2026-07-23T12:00:00.000Z	27 \| good	5.142 \| good	15.204 \| good	20.045 \| good	0.576 \| good	18.502 \| good	0.187 \| good
2026-07-23T13:00:00.000Z	49 \| good	8.924 \| good	33.152 \| good	24.662 \| good	0.632 \| good	17.948 \| good	0.262 \| good
2026-07-23T14:00:00.000Z	49 \| good	8.545 \| good	24.245 \| good	25.006 \| good	0.632 \| good	20.7 \| good	0.262 \| good
2026-07-23T15:00:00.000Z	44 \| good	7.693 \| good	30.57 \| good	33.926 \| good	0.632 \| good	14.533 \| good	0.26 \| good
2026-07-23T16:00:00.000Z	44 \| good	8.383 \| good	42.89 \| good	30.174 \| good	0.79 \| good	12.123 \| good	0.216 \| good
2026-07-23T17:00:00.000Z	49 \| good	9.392 \| good	42.921 \| good	41.27 \| good	0.818 \| good	9.154 \| good	0.2 \| good
2026-07-23T18:00:00.000Z	52 \| moderate	10.088 \| good	56.666 \| fine	51.18 \| good	0.79 \| good	6.692 \| good	0.213 \| good
2026-07-23T19:00:00.000Z	54 \| moderate	9.329 \| good	28.776 \| good	56.213 \| fine	0.811 \| good	5.561 \| good	0.194 \| good
2026-07-23T20:00:00.000Z	54 \| moderate	11.035 \| good	35.862 \| good	49.825 \| good	0.816 \| good	5.274 \| good	0.194 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	10.688 \| good	36.16 \| good	52.191 \| good	0.739 \| good	4.598 \| good	0.212 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	11.035 \| good	35.862 \| good	49.825 \| good	0.816 \| good	5.274 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	71 \| moderate	7.042 \| good	30.93 \| good	60.764 \| fine	0.142 \| good	0.954 \| good	0.119 \| good
2026-07-23T23:00:00.000Z	77 \| moderate	5.95 \| good	26.896 \| good	63.045 \| fine	0.131 \| good	1.125 \| good	0.119 \| good
2026-07-24T00:00:00.000Z	64 \| moderate	4.925 \| good	21.353 \| good	59.493 \| fine	0.127 \| good	1.283 \| good	0.12 \| good
2026-07-24T01:00:00.000Z	50 \| good	5.346 \| good	23.096 \| good	54.11 \| good	0.129 \| good	1.571 \| good	0.12 \| good
2026-07-24T02:00:00.000Z	44 \| good	5.288 \| good	22.922 \| good	47.628 \| good	0.138 \| good	2.958 \| good	0.13 \| good
2026-07-24T03:00:00.000Z	43 \| good	5.093 \| good	22.114 \| good	46.469 \| good	0.174 \| good	6.458 \| good	0.157 \| good
2026-07-24T04:00:00.000Z	43 \| good	5.92 \| good	26.67 \| good	46.481 \| good	0.223 \| good	9.381 \| good	0.178 \| good
2026-07-24T05:00:00.000Z	40 \| good	6.413 \| good	28.774 \| good	42.865 \| good	0.254 \| good	11.028 \| good	0.191 \| good
2026-07-24T06:00:00.000Z	36 \| good	5.086 \| good	21.882 \| good	38.949 \| good	0.266 \| good	11.918 \| good	0.199 \| good
2026-07-24T07:00:00.000Z	33 \| good	6.108 \| good	26.969 \| good	32.702 \| good	0.268 \| good	11.957 \| good	0.2 \| good
2026-07-24T08:00:00.000Z	44 \| good	8.037 \| good	35.235 \| good	28.085 \| good	0.256 \| good	11.718 \| good	0.198 \| good
2026-07-24T09:00:00.000Z	49 \| good	9.089 \| good	39.723 \| good	27.685 \| good	0.232 \| good	10.833 \| good	0.191 \| good
2026-07-24T10:00:00.000Z	52 \| moderate	9.991 \| good	44.275 \| good	26.896 \| good	0.207 \| good	9.935 \| good	0.184 \| good
2026-07-24T11:00:00.000Z	54 \| moderate	11.286 \| good	50.262 \| good	21.902 \| good	0.178 \| good	9.266 \| good	0.178 \| good
2026-07-24T12:00:00.000Z	54 \| moderate	11.203 \| good	50.025 \| good	20.904 \| good	0.151 \| good	8.095 \| good	0.172 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	11.607 \| good	51.468 \| good	25.734 \| good	0.127 \| good	5.993 \| good	0.166 \| good
2026-07-24T14:00:00.000Z	54 \| moderate	11.027 \| good	48.587 \| good	35.616 \| good	0.132 \| good	4.52 \| good	0.159 \| good
2026-07-24T15:00:00.000Z	49 \| good	8.929 \| good	39.444 \| good	47.236 \| good	0.17 \| good	3.273 \| good	0.147 \| good
2026-07-24T16:00:00.000Z	58 \| moderate	8.349 \| good	36.971 \| good	56.971 \| fine	0.249 \| good	1.886 \| good	0.133 \| good
2026-07-24T17:00:00.000Z	71 \| moderate	7.825 \| good	34.148 \| good	60.828 \| fine	0.244 \| good	0.926 \| good	0.124 \| good
2026-07-24T18:00:00.000Z	67 \| moderate	6.903 \| good	30.221 \| good	60.207 \| fine	0.222 \| good	0.556 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	61 \| moderate	6.355 \| good	28.112 \| good	58.35 \| fine	0.192 \| good	0.432 \| good	0.123 \| good
2026-07-24T20:00:00.000Z	64 \| moderate	6.386 \| good	28.218 \| good	58.784 \| fine	0.173 \| good	0.393 \| good	0.122 \| good
2026-07-24T21:00:00.000Z	61 \| moderate	7.55 \| good	33.07 \| good	57.577 \| fine	0.162 \| good	0.398 \| good	0.121 \| good
2026-07-24T22:00:00.000Z	61 \| moderate	7.09 \| good	31.126 \| good	58.359 \| fine	0.156 \| good	0.444 \| good	0.12 \| good
2026-07-24T23:00:00.000Z	58 \| moderate	6.247 \| good	28.012 \| good	57.349 \| fine	0.156 \| good	0.574 \| good	0.12 \| good
2026-07-25T00:00:00.000Z	48 \| good	6.269 \| good	28.059 \| good	52.064 \| good	0.157 \| good	0.99 \| good	0.124 \| good
2026-07-25T01:00:00.000Z	45 \| good	8.303 \| good	36.248 \| good	48.817 \| good	0.163 \| good	1.36 \| good	0.126 \| good
2026-07-25T02:00:00.000Z	44 \| good	8.009 \| good	35.072 \| good	44.66 \| good	0.161 \| good	2.598 \| good	0.135 \| good
2026-07-25T03:00:00.000Z	45 \| good	5.959 \| good	25.699 \| good	48.656 \| good	0.168 \| good	4.071 \| good	0.145 \| good
2026-07-25T04:00:00.000Z	43 \| good	5.593 \| good	24.36 \| good	45.683 \| good	0.175 \| good	5.025 \| good	0.152 \| good
2026-07-25T05:00:00.000Z	38 \| good	6.646 \| good	29.711 \| good	39.25 \| good	0.18 \| good	6.157 \| good	0.161 \| good
2026-07-25T06:00:00.000Z	34 \| good	6.318 \| good	28.453 \| good	36.93 \| good	0.186 \| good	7.49 \| good	0.171 \| good
2026-07-25T07:00:00.000Z	33 \| good	6.357 \| good	28.72 \| good	32.223 \| good	0.189 \| good	8.737 \| good	0.181 \| good
2026-07-25T08:00:00.000Z	44 \| good	7.647 \| good	33.859 \| good	28.011 \| good	0.186 \| good	9.772 \| good	0.189 \| good
2026-07-25T09:00:00.000Z	44 \| good	8.41 \| good	37.259 \| good	28.885 \| good	0.177 \| good	10.461 \| good	0.194 \| good
2026-07-25T10:00:00.000Z	49 \| good	8.741 \| good	38.438 \| good	27.977 \| good	0.167 \| good	10.975 \| good	0.198 \| good
2026-07-25T11:00:00.000Z	52 \| moderate	9.931 \| good	43.954 \| good	23.591 \| good	0.16 \| good	11.257 \| good	0.199 \| good
2026-07-25T12:00:00.000Z	52 \| moderate	9.691 \| good	43.152 \| good	20.681 \| good	0.151 \| good	10.615 \| good	0.2 \| good
2026-07-25T13:00:00.000Z	52 \| moderate	10.446 \| good	46.26 \| good	29.437 \| good	0.141 \| good	7.967 \| good	0.198 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	10.598 \| good	47.105 \| good	40.204 \| good	0.159 \| good	6.011 \| good	0.19 \| good
2026-07-25T15:00:00.000Z	52 \| moderate	10.133 \| good	45.118 \| good	51.262 \| good	0.216 \| good	3.332 \| good	0.157 \| good
2026-07-25T16:00:00.000Z	77 \| moderate	9.381 \| good	41.897 \| good	62.99 \| fine	0.308 \| good	2.074 \| good	0.143 \| good
2026-07-25T17:00:00.000Z	100 \| moderate	9.141 \| good	40.927 \| good	69.558 \| fine	0.348 \| good	1.197 \| good	0.134 \| good
2026-07-25T18:00:00.000Z	105 \| sensitive	8.2 \| good	36.122 \| good	71.548 \| moderate	0.275 \| good	0.705 \| good	0.127 \| good
2026-07-25T19:00:00.000Z	105 \| sensitive	7.386 \| good	32.209 \| good	72.001 \| moderate	0.211 \| good	0.519 \| good	0.122 \| good
2026-07-25T20:00:00.000Z	101 \| sensitive	7.876 \| good	34.217 \| good	71.188 \| moderate	0.173 \| good	0.493 \| good	0.118 \| good
2026-07-25T21:00:00.000Z	101 \| sensitive	8.047 \| good	35.063 \| good	71.119 \| moderate	0.157 \| good	0.513 \| good	0.116 \| good

Johnstown

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Johnstown, Colorado air quality map: Track AQI near you

0.20ppm

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 11:00:00 on 2026-07-22.

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 2026-07-23.

What is the current air quality in Johnstown, Colorado?

The current air quality in Johnstown, Colorado is 54, categorized as Moderate 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 11.035 μg/m³.

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

The current PM₁₀ concentration at Johnstown, Colorado is 35.862 μg/m³.

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

The current carbon monoxide (CO) concentration at Johnstown, Colorado is 0.194 ppm.

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

The current sulfur dioxide (SO₂) concentration at Johnstown, Colorado is 0.816 ppb.

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

The current ozone (O₃) concentration at Johnstown, Colorado is 49.825 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Johnstown, Colorado is 5.274 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	93 \| moderate	14.653 \| fine	61.697 \| fine	67.726 \| fine	0.659 \| good	2.004 \| good	0.156 \| good
2026-07-21T23:00:00.000Z	97 \| moderate	11.336 \| good	51.263 \| good	69.466 \| fine	0.606 \| good	1.653 \| good	0.156 \| good
2026-07-22T00:00:00.000Z	77 \| moderate	9.985 \| good	41.318 \| good	63.17 \| fine	0.601 \| good	1.608 \| good	0.191 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	9.617 \| good	49.002 \| good	66.207 \| fine	0.818 \| good	1.863 \| good	0.163 \| good
2026-07-22T02:00:00.000Z	58 \| moderate	9.519 \| good	34.055 \| good	56.971 \| fine	0.506 \| good	2.566 \| good	0.191 \| good
2026-07-22T03:00:00.000Z	58 \| moderate	10.096 \| good	44.191 \| good	57.002 \| fine	0.507 \| good	4.097 \| good	0.191 \| good
2026-07-22T04:00:00.000Z	52 \| moderate	9.031 \| good	56.534 \| fine	50.124 \| good	0.529 \| good	6.113 \| good	0.199 \| good
2026-07-22T05:00:00.000Z	49 \| good	7.136 \| good	31.883 \| good	52.827 \| good	0.716 \| good	9.587 \| good	0.191 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	7.08 \| good	26.158 \| good	56.113 \| fine	0.549 \| good	5.852 \| good	0.163 \| good
2026-07-22T07:00:00.000Z	44 \| good	5.813 \| good	22.027 \| good	47.984 \| good	0.613 \| good	3.83 \| good	0.129 \| good
2026-07-22T08:00:00.000Z	40 \| good	5.264 \| good	19.853 \| good	42.697 \| good	0.657 \| good	5.85 \| good	0.129 \| good
2026-07-22T09:00:00.000Z	36 \| good	5.825 \| good	23.48 \| good	39.378 \| good	0.451 \| good	5.99 \| good	0.129 \| good
2026-07-22T10:00:00.000Z	42 \| good	5.684 \| good	19.351 \| good	44.563 \| good	0.476 \| good	6.615 \| good	0.129 \| good
2026-07-22T11:00:00.000Z	35 \| good	5.777 \| good	21.267 \| good	37.785 \| good	0.606 \| good	7.595 \| good	0.143 \| good
2026-07-22T12:00:00.000Z	33 \| good	5.86 \| good	22.534 \| good	31.179 \| good	0.554 \| good	10.26 \| good	0.232 \| good
2026-07-22T13:00:00.000Z	38 \| good	7.368 \| good	38.32 \| good	40.721 \| good	0.559 \| good	10.556 \| good	0.232 \| good
2026-07-22T14:00:00.000Z	44 \| good	8.456 \| good	36.26 \| good	37.428 \| good	0.719 \| good	10.355 \| good	0.261 \| good
2026-07-22T15:00:00.000Z	77 \| moderate	22.929 \| fine	75.222 \| fine	46.865 \| good	1.052 \| good	8.668 \| good	0.261 \| good
2026-07-22T16:00:00.000Z	52 \| moderate	10.003 \| good	43.542 \| good	43.381 \| good	0.655 \| good	5.61 \| good	0.232 \| good
2026-07-22T17:00:00.000Z	52 \| moderate	10.412 \| good	34.217 \| good	48.741 \| good	0.832 \| good	6.299 \| good	0.204 \| good
2026-07-22T18:00:00.000Z	86 \| moderate	27.671 \| fine	30.163 \| good	52.646 \| good	0.837 \| good	4.729 \| good	0.215 \| good
2026-07-22T19:00:00.000Z	64 \| moderate	8.725 \| good	33.193 \| good	58.989 \| fine	0.714 \| good	4.127 \| good	0.215 \| good
2026-07-22T20:00:00.000Z	80 \| moderate	9.492 \| good	31.448 \| good	63.558 \| fine	0.631 \| good	4.287 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	97 \| moderate	10.605 \| good	49.758 \| good	68.733 \| fine	0.654 \| good	3.277 \| good	0.246 \| good
2026-07-22T22:00:00.000Z	97 \| moderate	10.691 \| good	38.384 \| good	69.474 \| fine	0.686 \| good	4.142 \| good	0.259 \| good
2026-07-22T23:00:00.000Z	100 \| moderate	10.006 \| good	39.86 \| good	69.876 \| fine	0.608 \| good	5.99 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	77 \| moderate	10.085 \| good	36.872 \| good	63.075 \| fine	0.56 \| good	6.461 \| good	0.215 \| good
2026-07-23T01:00:00.000Z	74 \| moderate	10.022 \| good	40.839 \| good	62.205 \| fine	0.532 \| good	5.465 \| good	0.23 \| good
2026-07-23T02:00:00.000Z	51 \| moderate	8.64 \| good	31.267 \| good	54.517 \| good	0.562 \| good	6.138 \| good	0.23 \| good
2026-07-23T03:00:00.000Z	49 \| good	8.742 \| good	38.507 \| good	42.249 \| good	0.209 \| good	3.763 \| good	0.141 \| good
2026-07-23T04:00:00.000Z	44 \| good	7.715 \| good	19.918 \| good	47.387 \| good	0.609 \| good	9.034 \| good	0.215 \| good
2026-07-23T05:00:00.000Z	42 \| good	6.172 \| good	26.951 \| good	45.149 \| good	0.555 \| good	8.364 \| good	0.178 \| good
2026-07-23T06:00:00.000Z	39 \| good	4.558 \| good	17.152 \| good	42.228 \| good	0.501 \| good	9.22 \| good	0.163 \| good
2026-07-23T07:00:00.000Z	36 \| good	5.307 \| good	22.03 \| good	39.318 \| good	0.45 \| good	9.037 \| good	0.148 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.724 \| good	29.115 \| good	30.788 \| good	0.499 \| good	9.666 \| good	0.163 \| good
2026-07-23T09:00:00.000Z	33 \| good	6.414 \| good	24.304 \| good	27.971 \| good	0.633 \| good	10.941 \| good	0.163 \| good
2026-07-23T10:00:00.000Z	38 \| good	7.437 \| good	22.902 \| good	23.891 \| good	0.754 \| good	13.828 \| good	0.163 \| good
2026-07-23T11:00:00.000Z	33 \| good	6.085 \| good	21.809 \| good	24.232 \| good	0.816 \| good	14.916 \| good	0.149 \| good
2026-07-23T12:00:00.000Z	27 \| good	5.142 \| good	15.204 \| good	20.045 \| good	0.576 \| good	18.502 \| good	0.187 \| good
2026-07-23T13:00:00.000Z	49 \| good	8.924 \| good	33.152 \| good	24.662 \| good	0.632 \| good	17.948 \| good	0.262 \| good
2026-07-23T14:00:00.000Z	49 \| good	8.545 \| good	24.245 \| good	25.006 \| good	0.632 \| good	20.7 \| good	0.262 \| good
2026-07-23T15:00:00.000Z	44 \| good	7.693 \| good	30.57 \| good	33.926 \| good	0.632 \| good	14.533 \| good	0.26 \| good
2026-07-23T16:00:00.000Z	44 \| good	8.383 \| good	42.89 \| good	30.174 \| good	0.79 \| good	12.123 \| good	0.216 \| good
2026-07-23T17:00:00.000Z	49 \| good	9.392 \| good	42.921 \| good	41.27 \| good	0.818 \| good	9.154 \| good	0.2 \| good
2026-07-23T18:00:00.000Z	52 \| moderate	10.088 \| good	56.666 \| fine	51.18 \| good	0.79 \| good	6.692 \| good	0.213 \| good
2026-07-23T19:00:00.000Z	54 \| moderate	9.329 \| good	28.776 \| good	56.213 \| fine	0.811 \| good	5.561 \| good	0.194 \| good
2026-07-23T20:00:00.000Z	54 \| moderate	11.035 \| good	35.862 \| good	49.825 \| good	0.816 \| good	5.274 \| good	0.194 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	10.688 \| good	36.16 \| good	52.191 \| good	0.739 \| good	4.598 \| good	0.212 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	11.035 \| good	35.862 \| good	49.825 \| good	0.816 \| good	5.274 \| good	0.194 \| good
2026-07-23T22:00:00.000Z	71 \| moderate	7.042 \| good	30.93 \| good	60.764 \| fine	0.142 \| good	0.954 \| good	0.119 \| good
2026-07-23T23:00:00.000Z	77 \| moderate	5.95 \| good	26.896 \| good	63.045 \| fine	0.131 \| good	1.125 \| good	0.119 \| good
2026-07-24T00:00:00.000Z	64 \| moderate	4.925 \| good	21.353 \| good	59.493 \| fine	0.127 \| good	1.283 \| good	0.12 \| good
2026-07-24T01:00:00.000Z	50 \| good	5.346 \| good	23.096 \| good	54.11 \| good	0.129 \| good	1.571 \| good	0.12 \| good
2026-07-24T02:00:00.000Z	44 \| good	5.288 \| good	22.922 \| good	47.628 \| good	0.138 \| good	2.958 \| good	0.13 \| good
2026-07-24T03:00:00.000Z	43 \| good	5.093 \| good	22.114 \| good	46.469 \| good	0.174 \| good	6.458 \| good	0.157 \| good
2026-07-24T04:00:00.000Z	43 \| good	5.92 \| good	26.67 \| good	46.481 \| good	0.223 \| good	9.381 \| good	0.178 \| good
2026-07-24T05:00:00.000Z	40 \| good	6.413 \| good	28.774 \| good	42.865 \| good	0.254 \| good	11.028 \| good	0.191 \| good
2026-07-24T06:00:00.000Z	36 \| good	5.086 \| good	21.882 \| good	38.949 \| good	0.266 \| good	11.918 \| good	0.199 \| good
2026-07-24T07:00:00.000Z	33 \| good	6.108 \| good	26.969 \| good	32.702 \| good	0.268 \| good	11.957 \| good	0.2 \| good
2026-07-24T08:00:00.000Z	44 \| good	8.037 \| good	35.235 \| good	28.085 \| good	0.256 \| good	11.718 \| good	0.198 \| good
2026-07-24T09:00:00.000Z	49 \| good	9.089 \| good	39.723 \| good	27.685 \| good	0.232 \| good	10.833 \| good	0.191 \| good
2026-07-24T10:00:00.000Z	52 \| moderate	9.991 \| good	44.275 \| good	26.896 \| good	0.207 \| good	9.935 \| good	0.184 \| good
2026-07-24T11:00:00.000Z	54 \| moderate	11.286 \| good	50.262 \| good	21.902 \| good	0.178 \| good	9.266 \| good	0.178 \| good
2026-07-24T12:00:00.000Z	54 \| moderate	11.203 \| good	50.025 \| good	20.904 \| good	0.151 \| good	8.095 \| good	0.172 \| good
2026-07-24T13:00:00.000Z	56 \| moderate	11.607 \| good	51.468 \| good	25.734 \| good	0.127 \| good	5.993 \| good	0.166 \| good
2026-07-24T14:00:00.000Z	54 \| moderate	11.027 \| good	48.587 \| good	35.616 \| good	0.132 \| good	4.52 \| good	0.159 \| good
2026-07-24T15:00:00.000Z	49 \| good	8.929 \| good	39.444 \| good	47.236 \| good	0.17 \| good	3.273 \| good	0.147 \| good
2026-07-24T16:00:00.000Z	58 \| moderate	8.349 \| good	36.971 \| good	56.971 \| fine	0.249 \| good	1.886 \| good	0.133 \| good
2026-07-24T17:00:00.000Z	71 \| moderate	7.825 \| good	34.148 \| good	60.828 \| fine	0.244 \| good	0.926 \| good	0.124 \| good
2026-07-24T18:00:00.000Z	67 \| moderate	6.903 \| good	30.221 \| good	60.207 \| fine	0.222 \| good	0.556 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	61 \| moderate	6.355 \| good	28.112 \| good	58.35 \| fine	0.192 \| good	0.432 \| good	0.123 \| good
2026-07-24T20:00:00.000Z	64 \| moderate	6.386 \| good	28.218 \| good	58.784 \| fine	0.173 \| good	0.393 \| good	0.122 \| good
2026-07-24T21:00:00.000Z	61 \| moderate	7.55 \| good	33.07 \| good	57.577 \| fine	0.162 \| good	0.398 \| good	0.121 \| good
2026-07-24T22:00:00.000Z	61 \| moderate	7.09 \| good	31.126 \| good	58.359 \| fine	0.156 \| good	0.444 \| good	0.12 \| good
2026-07-24T23:00:00.000Z	58 \| moderate	6.247 \| good	28.012 \| good	57.349 \| fine	0.156 \| good	0.574 \| good	0.12 \| good
2026-07-25T00:00:00.000Z	48 \| good	6.269 \| good	28.059 \| good	52.064 \| good	0.157 \| good	0.99 \| good	0.124 \| good
2026-07-25T01:00:00.000Z	45 \| good	8.303 \| good	36.248 \| good	48.817 \| good	0.163 \| good	1.36 \| good	0.126 \| good
2026-07-25T02:00:00.000Z	44 \| good	8.009 \| good	35.072 \| good	44.66 \| good	0.161 \| good	2.598 \| good	0.135 \| good
2026-07-25T03:00:00.000Z	45 \| good	5.959 \| good	25.699 \| good	48.656 \| good	0.168 \| good	4.071 \| good	0.145 \| good
2026-07-25T04:00:00.000Z	43 \| good	5.593 \| good	24.36 \| good	45.683 \| good	0.175 \| good	5.025 \| good	0.152 \| good
2026-07-25T05:00:00.000Z	38 \| good	6.646 \| good	29.711 \| good	39.25 \| good	0.18 \| good	6.157 \| good	0.161 \| good
2026-07-25T06:00:00.000Z	34 \| good	6.318 \| good	28.453 \| good	36.93 \| good	0.186 \| good	7.49 \| good	0.171 \| good
2026-07-25T07:00:00.000Z	33 \| good	6.357 \| good	28.72 \| good	32.223 \| good	0.189 \| good	8.737 \| good	0.181 \| good
2026-07-25T08:00:00.000Z	44 \| good	7.647 \| good	33.859 \| good	28.011 \| good	0.186 \| good	9.772 \| good	0.189 \| good
2026-07-25T09:00:00.000Z	44 \| good	8.41 \| good	37.259 \| good	28.885 \| good	0.177 \| good	10.461 \| good	0.194 \| good
2026-07-25T10:00:00.000Z	49 \| good	8.741 \| good	38.438 \| good	27.977 \| good	0.167 \| good	10.975 \| good	0.198 \| good
2026-07-25T11:00:00.000Z	52 \| moderate	9.931 \| good	43.954 \| good	23.591 \| good	0.16 \| good	11.257 \| good	0.199 \| good
2026-07-25T12:00:00.000Z	52 \| moderate	9.691 \| good	43.152 \| good	20.681 \| good	0.151 \| good	10.615 \| good	0.2 \| good
2026-07-25T13:00:00.000Z	52 \| moderate	10.446 \| good	46.26 \| good	29.437 \| good	0.141 \| good	7.967 \| good	0.198 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	10.598 \| good	47.105 \| good	40.204 \| good	0.159 \| good	6.011 \| good	0.19 \| good
2026-07-25T15:00:00.000Z	52 \| moderate	10.133 \| good	45.118 \| good	51.262 \| good	0.216 \| good	3.332 \| good	0.157 \| good
2026-07-25T16:00:00.000Z	77 \| moderate	9.381 \| good	41.897 \| good	62.99 \| fine	0.308 \| good	2.074 \| good	0.143 \| good
2026-07-25T17:00:00.000Z	100 \| moderate	9.141 \| good	40.927 \| good	69.558 \| fine	0.348 \| good	1.197 \| good	0.134 \| good
2026-07-25T18:00:00.000Z	105 \| sensitive	8.2 \| good	36.122 \| good	71.548 \| moderate	0.275 \| good	0.705 \| good	0.127 \| good
2026-07-25T19:00:00.000Z	105 \| sensitive	7.386 \| good	32.209 \| good	72.001 \| moderate	0.211 \| good	0.519 \| good	0.122 \| good
2026-07-25T20:00:00.000Z	101 \| sensitive	7.876 \| good	34.217 \| good	71.188 \| moderate	0.173 \| good	0.493 \| good	0.118 \| good
2026-07-25T21:00:00.000Z	101 \| sensitive	8.047 \| good	35.063 \| good	71.119 \| moderate	0.157 \| good	0.513 \| good	0.116 \| 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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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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