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

The current PM10 concentration at Johnstown, Colorado is 7.949 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Johnstown, Colorado is 0.494 ppb.

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

The current ozone (O3) concentration at Johnstown, Colorado is 38.304 ppm.

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

The current nitrogen dioxide (NO2) concentration at Johnstown, Colorado is 3.065 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 1.563 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)

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)

1.56 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

7.95 μg/m³

155

255

425

605+

Ozone (O₃)

38.30 ppb

201

201+

Sulfur Dioxide (SO₂)

0.49 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.06 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-04-22T06:00:00.000Z	44 \| good	5.25 \| good	24.387 \| good	46.747 \| good	0.656 \| good	13.099 \| good	0.241 \| good
2026-04-22T07:00:00.000Z	40 \| good	5.283 \| good	25.581 \| good	43.34 \| good	0.673 \| good	9.735 \| good	0.193 \| good
2026-04-22T08:00:00.000Z	37 \| good	5.418 \| good	25.734 \| good	39.594 \| good	0.687 \| good	9.125 \| good	0.156 \| good
2026-04-22T09:00:00.000Z	34 \| good	5.779 \| good	28.973 \| good	36.754 \| good	0.757 \| good	7.366 \| good	0.141 \| good
2026-04-22T10:00:00.000Z	33 \| good	5.939 \| good	21.173 \| good	35.946 \| good	0.663 \| good	8.299 \| good	0.176 \| good
2026-04-22T11:00:00.000Z	38 \| good	6.534 \| good	25.796 \| good	30.188 \| good	0.858 \| good	11.4 \| good	0.19 \| good
2026-04-22T12:00:00.000Z	38 \| good	6.743 \| good	26.833 \| good	35.482 \| good	0.917 \| good	14.797 \| good	0.267 \| good
2026-04-22T13:00:00.000Z	44 \| good	8.116 \| good	23.321 \| good	34.492 \| good	0.875 \| good	23.046 \| good	0.282 \| good
2026-04-22T14:00:00.000Z	39 \| good	7.264 \| good	32.241 \| good	41.847 \| good	0.836 \| good	28.121 \| good	0.266 \| good
2026-04-22T15:00:00.000Z	53 \| moderate	6.067 \| good	58.568 \| fine	45.608 \| good	0.954 \| good	23.157 \| good	0.315 \| good
2026-04-22T16:00:00.000Z	38 \| good	7.343 \| good	34.843 \| good	34.435 \| good	0.676 \| good	19.057 \| good	0.28 \| good
2026-04-22T17:00:00.000Z	45 \| good	6.387 \| good	49.363 \| good	39.706 \| good	0.573 \| good	11.686 \| good	0.232 \| good
2026-04-22T18:00:00.000Z	54 \| moderate	5.763 \| good	24.727 \| good	56.19 \| fine	0.463 \| good	3.6 \| good	0.204 \| good
2026-04-22T19:00:00.000Z	58 \| moderate	4.073 \| good	36.465 \| good	57.131 \| fine	0.515 \| good	1.454 \| good	0.129 \| good
2026-04-22T20:00:00.000Z	51 \| moderate	3.6 \| good	22.595 \| good	54.991 \| good	0.437 \| good	2.523 \| good	0.17 \| good
2026-04-22T21:00:00.000Z	71 \| moderate	3.236 \| good	42.91 \| good	61.207 \| fine	0.407 \| good	3.644 \| good	0.203 \| good
2026-04-22T22:00:00.000Z	84 \| moderate	5.581 \| good	25.924 \| good	64.6 \| fine	0.462 \| good	3.55 \| good	0.203 \| good
2026-04-22T23:00:00.000Z	77 \| moderate	2.313 \| good	23.784 \| good	63.217 \| fine	0.374 \| good	3.026 \| good	0.155 \| good
2026-04-23T00:00:00.000Z	67 \| moderate	3.574 \| good	88.042 \| fine	60.115 \| fine	0.412 \| good	2.313 \| good	0.155 \| good
2026-04-23T01:00:00.000Z	58 \| moderate	2.701 \| good	28.267 \| good	56.769 \| fine	0.299 \| good	2.312 \| good	0.128 \| good
2026-04-23T02:00:00.000Z	51 \| moderate	2.865 \| good	22.384 \| good	55.31 \| fine	0.385 \| good	2.522 \| good	0.128 \| good
2026-04-23T03:00:00.000Z	50 \| good	2.767 \| good	13.738 \| good	54.287 \| good	0.576 \| good	3.286 \| good	0.155 \| good
2026-04-23T04:00:00.000Z	49 \| good	2.93 \| good	16.747 \| good	53.062 \| good	0.306 \| good	2.987 \| good	0.174 \| good
2026-04-23T05:00:00.000Z	50 \| good	3.359 \| good	22.446 \| good	53.755 \| good	0.347 \| good	2.615 \| good	0.144 \| good
2026-04-23T06:00:00.000Z	46 \| good	3.774 \| good	26.304 \| good	49.777 \| good	0.369 \| good	0.804 \| good	0.128 \| good
2026-04-23T07:00:00.000Z	49 \| good	4.24 \| good	26.637 \| good	52.888 \| good	0.624 \| good	0.797 \| good	0.114 \| good
2026-04-23T08:00:00.000Z	47 \| good	6.217 \| good	48.789 \| good	51.127 \| good	0.614 \| good	0.688 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	44 \| good	4.093 \| good	20.256 \| good	47.945 \| good	0.361 \| good	0.823 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	42 \| good	5.126 \| good	27.507 \| good	44.641 \| good	0.509 \| good	0.872 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	41 \| good	4.237 \| good	32.754 \| good	44.214 \| good	0.591 \| good	1.122 \| good	0.143 \| good
2026-04-23T12:00:00.000Z	47 \| good	3.702 \| good	17.232 \| good	50.766 \| good	0.533 \| good	6.864 \| good	0.178 \| good
2026-04-23T13:00:00.000Z	47 \| good	2.899 \| good	18.167 \| good	51.117 \| good	0.496 \| good	3.883 \| good	0.206 \| good
2026-04-23T14:00:00.000Z	58 \| moderate	3.031 \| good	18.186 \| good	57.084 \| fine	0.527 \| good	6.732 \| good	0.156 \| good
2026-04-23T15:00:00.000Z	67 \| moderate	2.642 \| good	13.926 \| good	59.752 \| fine	0.722 \| good	4.445 \| good	0.155 \| good
2026-04-23T16:00:00.000Z	67 \| moderate	2.682 \| good	17.018 \| good	59.52 \| fine	0.521 \| good	3.103 \| good	0.128 \| good
2026-04-23T17:00:00.000Z	54 \| moderate	1.631 \| good	17.97 \| good	55.959 \| fine	0.356 \| good	2.585 \| good	0.128 \| good
2026-04-23T18:00:00.000Z	64 \| moderate	2.065 \| good	19.225 \| good	59.012 \| fine	0.574 \| good	2.118 \| good	0.128 \| good
2026-04-23T19:00:00.000Z	61 \| moderate	1.392 \| good	11.416 \| good	58.238 \| fine	0.404 \| good	2.279 \| good	0.169 \| good
2026-04-23T20:00:00.000Z	64 \| moderate	1.322 \| good	12.602 \| good	58.776 \| fine	0.389 \| good	2.704 \| good	0.128 \| good
2026-04-23T21:00:00.000Z	51 \| moderate	1.346 \| good	8.214 \| good	55.43 \| fine	0.538 \| good	2.707 \| good	0.141 \| good
2026-04-23T22:00:00.000Z	48 \| good	1.462 \| good	15.132 \| good	51.67 \| good	0.392 \| good	0.905 \| good	0.156 \| good
2026-04-23T23:00:00.000Z	48 \| good	1.155 \| good	13.379 \| good	51.968 \| good	0.564 \| good	1.994 \| good	0.169 \| good
2026-04-24T00:00:00.000Z	46 \| good	0.967 \| good	9.86 \| good	49.76 \| good	0.529 \| good	1.046 \| good	0.141 \| good
2026-04-24T01:00:00.000Z	43 \| good	0.874 \| good	6.643 \| good	45.745 \| good	0.429 \| good	2.503 \| good	0.141 \| good
2026-04-24T02:00:00.000Z	41 \| good	0.955 \| good	6.706 \| good	44.162 \| good	0.794 \| good	2.737 \| good	0.141 \| good
2026-04-24T03:00:00.000Z	35 \| good	1.247 \| good	5.41 \| good	37.581 \| good	0.2 \| good	4.224 \| good	0.15 \| good
2026-04-24T04:00:00.000Z	38 \| good	1.233 \| good	9.081 \| good	41.39 \| good	0.556 \| good	5.311 \| good	0.182 \| good
2026-04-24T05:00:00.000Z	35 \| good	1.563 \| good	7.949 \| good	38.304 \| good	0.494 \| good	3.065 \| good	0.237 \| good
2026-04-24T05:00:00.000Z	35 \| good	1.563 \| good	7.949 \| good	38.304 \| good	0.494 \| good	3.065 \| good	0.237 \| good
2026-04-24T06:00:00.000Z	32 \| good	2.895 \| good	11.703 \| good	35.287 \| good	0.455 \| good	10.655 \| good	0.189 \| good
2026-04-24T07:00:00.000Z	32 \| good	3.964 \| good	16.939 \| good	34.59 \| good	0.423 \| good	9.802 \| good	0.182 \| good
2026-04-24T08:00:00.000Z	58 \| moderate	13.066 \| fine	58.036 \| fine	32.649 \| good	0.391 \| good	8.948 \| good	0.175 \| good
2026-04-24T09:00:00.000Z	77 \| moderate	22.756 \| fine	99.864 \| fine	25.706 \| good	0.36 \| good	8.095 \| good	0.168 \| good
2026-04-24T10:00:00.000Z	79 \| moderate	23.927 \| fine	105.12 \| fine	20.81 \| good	0.322 \| good	7.509 \| good	0.163 \| good
2026-04-24T11:00:00.000Z	81 \| moderate	24.741 \| fine	108.239 \| fine	15.858 \| good	0.284 \| good	6.924 \| good	0.158 \| good
2026-04-24T12:00:00.000Z	75 \| moderate	21.565 \| fine	94.604 \| fine	20.077 \| good	0.246 \| good	6.339 \| good	0.152 \| good
2026-04-24T13:00:00.000Z	66 \| moderate	17.488 \| fine	77.049 \| fine	25.659 \| good	0.266 \| good	5.309 \| good	0.151 \| good
2026-04-24T14:00:00.000Z	71 \| moderate	19.552 \| fine	86.414 \| fine	32.625 \| good	0.286 \| good	4.279 \| good	0.151 \| good
2026-04-24T15:00:00.000Z	64 \| moderate	15.541 \| fine	68.988 \| fine	39.013 \| good	0.307 \| good	3.249 \| good	0.15 \| good
2026-04-24T16:00:00.000Z	49 \| good	8.893 \| good	39.424 \| good	47.144 \| good	0.336 \| good	2.705 \| good	0.142 \| good
2026-04-24T17:00:00.000Z	45 \| good	8.013 \| good	35.246 \| good	49.347 \| good	0.365 \| good	2.16 \| good	0.134 \| good
2026-04-24T18:00:00.000Z	58 \| moderate	13.296 \| fine	60.167 \| fine	49.789 \| good	0.394 \| good	1.615 \| good	0.127 \| good
2026-04-24T19:00:00.000Z	112 \| sensitive	39.662 \| moderate	174.975 \| moderate	48.649 \| good	0.337 \| good	1.289 \| good	0.122 \| good
2026-04-24T20:00:00.000Z	147 \| sensitive	53.629 \| moderate	244.136 \| moderate	51.249 \| good	0.28 \| good	0.963 \| good	0.117 \| good
2026-04-24T21:00:00.000Z	137 \| sensitive	50.463 \| moderate	225.974 \| moderate	54.385 \| good	0.223 \| good	0.636 \| good	0.113 \| good
2026-04-24T22:00:00.000Z	137 \| sensitive	49.72 \| moderate	220.843 \| moderate	55.562 \| fine	0.201 \| good	0.616 \| good	0.113 \| good
2026-04-24T23:00:00.000Z	153 \| unhealthy	58.761 \| poor	251.985 \| moderate	55.817 \| fine	0.18 \| good	0.595 \| good	0.113 \| good
2026-04-25T00:00:00.000Z	177 \| unhealthy	91.848 \| poor	292.329 \| poor	54.263 \| good	0.159 \| good	0.575 \| good	0.113 \| good
2026-04-25T01:00:00.000Z	194 \| unhealthy	116.907 \| poor	318.423 \| poor	51.044 \| good	0.219 \| good	2.598 \| good	0.129 \| good
2026-04-25T02:00:00.000Z	217 \| vUnhealthy	141.77 \| poor	344.063 \| poor	46.75 \| good	0.279 \| good	4.621 \| good	0.144 \| good
2026-04-25T03:00:00.000Z	209 \| vUnhealthy	133.756 \| poor	335.638 \| poor	45.406 \| good	0.339 \| good	6.644 \| good	0.16 \| good
2026-04-25T04:00:00.000Z	193 \| unhealthy	115.159 \| poor	316.669 \| poor	39.579 \| good	0.275 \| good	5.4 \| good	0.154 \| good
2026-04-25T05:00:00.000Z	52 \| moderate	10.247 \| good	45.665 \| good	43.173 \| good	0.211 \| good	4.156 \| good	0.148 \| good
2026-04-25T06:00:00.000Z	39 \| good	2.38 \| good	9.527 \| good	42.129 \| good	0.148 \| good	2.912 \| good	0.141 \| good
2026-04-25T07:00:00.000Z	39 \| good	2.953 \| good	12.409 \| good	42.44 \| good	0.139 \| good	2.487 \| good	0.139 \| good
2026-04-25T08:00:00.000Z	40 \| good	3.546 \| good	15.97 \| good	42.854 \| good	0.131 \| good	2.061 \| good	0.136 \| good
2026-04-25T09:00:00.000Z	41 \| good	3.456 \| good	15.112 \| good	43.913 \| good	0.122 \| good	1.635 \| good	0.133 \| good
2026-04-25T10:00:00.000Z	40 \| good	2.745 \| good	11.494 \| good	43.414 \| good	0.122 \| good	1.604 \| good	0.133 \| good
2026-04-25T11:00:00.000Z	36 \| good	3.231 \| good	14.182 \| good	39.333 \| good	0.122 \| good	1.573 \| good	0.133 \| good
2026-04-25T12:00:00.000Z	36 \| good	4.021 \| good	17.497 \| good	38.871 \| good	0.122 \| good	1.541 \| good	0.133 \| good
2026-04-25T13:00:00.000Z	34 \| good	3.591 \| good	16.049 \| good	37.364 \| good	0.139 \| good	1.529 \| good	0.134 \| good
2026-04-25T14:00:00.000Z	34 \| good	4.398 \| good	19.243 \| good	36.541 \| good	0.155 \| good	1.516 \| good	0.135 \| good
2026-04-25T15:00:00.000Z	35 \| good	3.46 \| good	15.203 \| good	38.032 \| good	0.171 \| good	1.503 \| good	0.136 \| good
2026-04-25T16:00:00.000Z	38 \| good	3.303 \| good	14.292 \| good	40.741 \| good	0.182 \| good	1.367 \| good	0.136 \| good
2026-04-25T17:00:00.000Z	42 \| good	2.616 \| good	10.867 \| good	45.031 \| good	0.192 \| good	1.231 \| good	0.135 \| good
2026-04-25T18:00:00.000Z	44 \| good	3.213 \| good	14.038 \| good	47.747 \| good	0.203 \| good	1.094 \| good	0.134 \| good
2026-04-25T19:00:00.000Z	46 \| good	3.476 \| good	15.092 \| good	50.487 \| good	0.205 \| good	1.044 \| good	0.132 \| good
2026-04-25T20:00:00.000Z	48 \| good	2.985 \| good	12.208 \| good	52.408 \| good	0.206 \| good	0.993 \| good	0.129 \| good
2026-04-25T21:00:00.000Z	49 \| good	2.946 \| good	12.038 \| good	52.996 \| good	0.208 \| good	0.942 \| good	0.127 \| good
2026-04-25T22:00:00.000Z	47 \| good	1.329 \| good	5.269 \| good	51.421 \| good	0.223 \| good	1.058 \| good	0.128 \| good
2026-04-25T23:00:00.000Z	45 \| good	0.746 \| good	2.893 \| good	49.444 \| good	0.237 \| good	1.173 \| good	0.129 \| good
2026-04-26T00:00:00.000Z	44 \| good	4.915 \| good	21.026 \| good	48.236 \| good	0.252 \| good	1.288 \| good	0.129 \| good
2026-04-26T01:00:00.000Z	43 \| good	4.733 \| good	20.368 \| good	46.457 \| good	0.312 \| good	2.897 \| good	0.143 \| good
2026-04-26T02:00:00.000Z	35 \| good	5.673 \| good	24.635 \| good	38.186 \| good	0.373 \| good	4.506 \| good	0.156 \| good
2026-04-26T03:00:00.000Z	35 \| good	6.033 \| good	27.17 \| good	38.21 \| good	0.433 \| good	6.115 \| good	0.169 \| good
2026-04-26T04:00:00.000Z	35 \| good	4.511 \| good	19.383 \| good	38.327 \| good	0.452 \| good	6.607 \| good	0.173 \| good
2026-04-26T05:00:00.000Z	35 \| good	4.166 \| good	18.279 \| good	38.359 \| good	0.471 \| good	7.099 \| good	0.178 \| good

Johnstown

Get reliable air quality data to drive your business

Johnstown, Colorado air quality map: Track AQI near you

0.19ppm

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 04:00:00 on 2026-04-23.

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 03:00:00 on 2026-04-24.

What is the current air quality in Johnstown, Colorado?

The current air quality in Johnstown, Colorado is 35, 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 O3.

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 1.563 μg/m³.

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

The current PM₁₀ concentration at Johnstown, Colorado is 7.949 μg/m³.

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

The current carbon monoxide (CO) concentration at Johnstown, Colorado is 0.237 ppm.

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

The current sulfur dioxide (SO₂) concentration at Johnstown, Colorado is 0.494 ppb.

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

The current ozone (O₃) concentration at Johnstown, Colorado is 38.304 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Johnstown, Colorado is 3.065 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T06:00:00.000Z	44 \| good	5.25 \| good	24.387 \| good	46.747 \| good	0.656 \| good	13.099 \| good	0.241 \| good
2026-04-22T07:00:00.000Z	40 \| good	5.283 \| good	25.581 \| good	43.34 \| good	0.673 \| good	9.735 \| good	0.193 \| good
2026-04-22T08:00:00.000Z	37 \| good	5.418 \| good	25.734 \| good	39.594 \| good	0.687 \| good	9.125 \| good	0.156 \| good
2026-04-22T09:00:00.000Z	34 \| good	5.779 \| good	28.973 \| good	36.754 \| good	0.757 \| good	7.366 \| good	0.141 \| good
2026-04-22T10:00:00.000Z	33 \| good	5.939 \| good	21.173 \| good	35.946 \| good	0.663 \| good	8.299 \| good	0.176 \| good
2026-04-22T11:00:00.000Z	38 \| good	6.534 \| good	25.796 \| good	30.188 \| good	0.858 \| good	11.4 \| good	0.19 \| good
2026-04-22T12:00:00.000Z	38 \| good	6.743 \| good	26.833 \| good	35.482 \| good	0.917 \| good	14.797 \| good	0.267 \| good
2026-04-22T13:00:00.000Z	44 \| good	8.116 \| good	23.321 \| good	34.492 \| good	0.875 \| good	23.046 \| good	0.282 \| good
2026-04-22T14:00:00.000Z	39 \| good	7.264 \| good	32.241 \| good	41.847 \| good	0.836 \| good	28.121 \| good	0.266 \| good
2026-04-22T15:00:00.000Z	53 \| moderate	6.067 \| good	58.568 \| fine	45.608 \| good	0.954 \| good	23.157 \| good	0.315 \| good
2026-04-22T16:00:00.000Z	38 \| good	7.343 \| good	34.843 \| good	34.435 \| good	0.676 \| good	19.057 \| good	0.28 \| good
2026-04-22T17:00:00.000Z	45 \| good	6.387 \| good	49.363 \| good	39.706 \| good	0.573 \| good	11.686 \| good	0.232 \| good
2026-04-22T18:00:00.000Z	54 \| moderate	5.763 \| good	24.727 \| good	56.19 \| fine	0.463 \| good	3.6 \| good	0.204 \| good
2026-04-22T19:00:00.000Z	58 \| moderate	4.073 \| good	36.465 \| good	57.131 \| fine	0.515 \| good	1.454 \| good	0.129 \| good
2026-04-22T20:00:00.000Z	51 \| moderate	3.6 \| good	22.595 \| good	54.991 \| good	0.437 \| good	2.523 \| good	0.17 \| good
2026-04-22T21:00:00.000Z	71 \| moderate	3.236 \| good	42.91 \| good	61.207 \| fine	0.407 \| good	3.644 \| good	0.203 \| good
2026-04-22T22:00:00.000Z	84 \| moderate	5.581 \| good	25.924 \| good	64.6 \| fine	0.462 \| good	3.55 \| good	0.203 \| good
2026-04-22T23:00:00.000Z	77 \| moderate	2.313 \| good	23.784 \| good	63.217 \| fine	0.374 \| good	3.026 \| good	0.155 \| good
2026-04-23T00:00:00.000Z	67 \| moderate	3.574 \| good	88.042 \| fine	60.115 \| fine	0.412 \| good	2.313 \| good	0.155 \| good
2026-04-23T01:00:00.000Z	58 \| moderate	2.701 \| good	28.267 \| good	56.769 \| fine	0.299 \| good	2.312 \| good	0.128 \| good
2026-04-23T02:00:00.000Z	51 \| moderate	2.865 \| good	22.384 \| good	55.31 \| fine	0.385 \| good	2.522 \| good	0.128 \| good
2026-04-23T03:00:00.000Z	50 \| good	2.767 \| good	13.738 \| good	54.287 \| good	0.576 \| good	3.286 \| good	0.155 \| good
2026-04-23T04:00:00.000Z	49 \| good	2.93 \| good	16.747 \| good	53.062 \| good	0.306 \| good	2.987 \| good	0.174 \| good
2026-04-23T05:00:00.000Z	50 \| good	3.359 \| good	22.446 \| good	53.755 \| good	0.347 \| good	2.615 \| good	0.144 \| good
2026-04-23T06:00:00.000Z	46 \| good	3.774 \| good	26.304 \| good	49.777 \| good	0.369 \| good	0.804 \| good	0.128 \| good
2026-04-23T07:00:00.000Z	49 \| good	4.24 \| good	26.637 \| good	52.888 \| good	0.624 \| good	0.797 \| good	0.114 \| good
2026-04-23T08:00:00.000Z	47 \| good	6.217 \| good	48.789 \| good	51.127 \| good	0.614 \| good	0.688 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	44 \| good	4.093 \| good	20.256 \| good	47.945 \| good	0.361 \| good	0.823 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	42 \| good	5.126 \| good	27.507 \| good	44.641 \| good	0.509 \| good	0.872 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	41 \| good	4.237 \| good	32.754 \| good	44.214 \| good	0.591 \| good	1.122 \| good	0.143 \| good
2026-04-23T12:00:00.000Z	47 \| good	3.702 \| good	17.232 \| good	50.766 \| good	0.533 \| good	6.864 \| good	0.178 \| good
2026-04-23T13:00:00.000Z	47 \| good	2.899 \| good	18.167 \| good	51.117 \| good	0.496 \| good	3.883 \| good	0.206 \| good
2026-04-23T14:00:00.000Z	58 \| moderate	3.031 \| good	18.186 \| good	57.084 \| fine	0.527 \| good	6.732 \| good	0.156 \| good
2026-04-23T15:00:00.000Z	67 \| moderate	2.642 \| good	13.926 \| good	59.752 \| fine	0.722 \| good	4.445 \| good	0.155 \| good
2026-04-23T16:00:00.000Z	67 \| moderate	2.682 \| good	17.018 \| good	59.52 \| fine	0.521 \| good	3.103 \| good	0.128 \| good
2026-04-23T17:00:00.000Z	54 \| moderate	1.631 \| good	17.97 \| good	55.959 \| fine	0.356 \| good	2.585 \| good	0.128 \| good
2026-04-23T18:00:00.000Z	64 \| moderate	2.065 \| good	19.225 \| good	59.012 \| fine	0.574 \| good	2.118 \| good	0.128 \| good
2026-04-23T19:00:00.000Z	61 \| moderate	1.392 \| good	11.416 \| good	58.238 \| fine	0.404 \| good	2.279 \| good	0.169 \| good
2026-04-23T20:00:00.000Z	64 \| moderate	1.322 \| good	12.602 \| good	58.776 \| fine	0.389 \| good	2.704 \| good	0.128 \| good
2026-04-23T21:00:00.000Z	51 \| moderate	1.346 \| good	8.214 \| good	55.43 \| fine	0.538 \| good	2.707 \| good	0.141 \| good
2026-04-23T22:00:00.000Z	48 \| good	1.462 \| good	15.132 \| good	51.67 \| good	0.392 \| good	0.905 \| good	0.156 \| good
2026-04-23T23:00:00.000Z	48 \| good	1.155 \| good	13.379 \| good	51.968 \| good	0.564 \| good	1.994 \| good	0.169 \| good
2026-04-24T00:00:00.000Z	46 \| good	0.967 \| good	9.86 \| good	49.76 \| good	0.529 \| good	1.046 \| good	0.141 \| good
2026-04-24T01:00:00.000Z	43 \| good	0.874 \| good	6.643 \| good	45.745 \| good	0.429 \| good	2.503 \| good	0.141 \| good
2026-04-24T02:00:00.000Z	41 \| good	0.955 \| good	6.706 \| good	44.162 \| good	0.794 \| good	2.737 \| good	0.141 \| good
2026-04-24T03:00:00.000Z	35 \| good	1.247 \| good	5.41 \| good	37.581 \| good	0.2 \| good	4.224 \| good	0.15 \| good
2026-04-24T04:00:00.000Z	38 \| good	1.233 \| good	9.081 \| good	41.39 \| good	0.556 \| good	5.311 \| good	0.182 \| good
2026-04-24T05:00:00.000Z	35 \| good	1.563 \| good	7.949 \| good	38.304 \| good	0.494 \| good	3.065 \| good	0.237 \| good
2026-04-24T05:00:00.000Z	35 \| good	1.563 \| good	7.949 \| good	38.304 \| good	0.494 \| good	3.065 \| good	0.237 \| good
2026-04-24T06:00:00.000Z	32 \| good	2.895 \| good	11.703 \| good	35.287 \| good	0.455 \| good	10.655 \| good	0.189 \| good
2026-04-24T07:00:00.000Z	32 \| good	3.964 \| good	16.939 \| good	34.59 \| good	0.423 \| good	9.802 \| good	0.182 \| good
2026-04-24T08:00:00.000Z	58 \| moderate	13.066 \| fine	58.036 \| fine	32.649 \| good	0.391 \| good	8.948 \| good	0.175 \| good
2026-04-24T09:00:00.000Z	77 \| moderate	22.756 \| fine	99.864 \| fine	25.706 \| good	0.36 \| good	8.095 \| good	0.168 \| good
2026-04-24T10:00:00.000Z	79 \| moderate	23.927 \| fine	105.12 \| fine	20.81 \| good	0.322 \| good	7.509 \| good	0.163 \| good
2026-04-24T11:00:00.000Z	81 \| moderate	24.741 \| fine	108.239 \| fine	15.858 \| good	0.284 \| good	6.924 \| good	0.158 \| good
2026-04-24T12:00:00.000Z	75 \| moderate	21.565 \| fine	94.604 \| fine	20.077 \| good	0.246 \| good	6.339 \| good	0.152 \| good
2026-04-24T13:00:00.000Z	66 \| moderate	17.488 \| fine	77.049 \| fine	25.659 \| good	0.266 \| good	5.309 \| good	0.151 \| good
2026-04-24T14:00:00.000Z	71 \| moderate	19.552 \| fine	86.414 \| fine	32.625 \| good	0.286 \| good	4.279 \| good	0.151 \| good
2026-04-24T15:00:00.000Z	64 \| moderate	15.541 \| fine	68.988 \| fine	39.013 \| good	0.307 \| good	3.249 \| good	0.15 \| good
2026-04-24T16:00:00.000Z	49 \| good	8.893 \| good	39.424 \| good	47.144 \| good	0.336 \| good	2.705 \| good	0.142 \| good
2026-04-24T17:00:00.000Z	45 \| good	8.013 \| good	35.246 \| good	49.347 \| good	0.365 \| good	2.16 \| good	0.134 \| good
2026-04-24T18:00:00.000Z	58 \| moderate	13.296 \| fine	60.167 \| fine	49.789 \| good	0.394 \| good	1.615 \| good	0.127 \| good
2026-04-24T19:00:00.000Z	112 \| sensitive	39.662 \| moderate	174.975 \| moderate	48.649 \| good	0.337 \| good	1.289 \| good	0.122 \| good
2026-04-24T20:00:00.000Z	147 \| sensitive	53.629 \| moderate	244.136 \| moderate	51.249 \| good	0.28 \| good	0.963 \| good	0.117 \| good
2026-04-24T21:00:00.000Z	137 \| sensitive	50.463 \| moderate	225.974 \| moderate	54.385 \| good	0.223 \| good	0.636 \| good	0.113 \| good
2026-04-24T22:00:00.000Z	137 \| sensitive	49.72 \| moderate	220.843 \| moderate	55.562 \| fine	0.201 \| good	0.616 \| good	0.113 \| good
2026-04-24T23:00:00.000Z	153 \| unhealthy	58.761 \| poor	251.985 \| moderate	55.817 \| fine	0.18 \| good	0.595 \| good	0.113 \| good
2026-04-25T00:00:00.000Z	177 \| unhealthy	91.848 \| poor	292.329 \| poor	54.263 \| good	0.159 \| good	0.575 \| good	0.113 \| good
2026-04-25T01:00:00.000Z	194 \| unhealthy	116.907 \| poor	318.423 \| poor	51.044 \| good	0.219 \| good	2.598 \| good	0.129 \| good
2026-04-25T02:00:00.000Z	217 \| vUnhealthy	141.77 \| poor	344.063 \| poor	46.75 \| good	0.279 \| good	4.621 \| good	0.144 \| good
2026-04-25T03:00:00.000Z	209 \| vUnhealthy	133.756 \| poor	335.638 \| poor	45.406 \| good	0.339 \| good	6.644 \| good	0.16 \| good
2026-04-25T04:00:00.000Z	193 \| unhealthy	115.159 \| poor	316.669 \| poor	39.579 \| good	0.275 \| good	5.4 \| good	0.154 \| good
2026-04-25T05:00:00.000Z	52 \| moderate	10.247 \| good	45.665 \| good	43.173 \| good	0.211 \| good	4.156 \| good	0.148 \| good
2026-04-25T06:00:00.000Z	39 \| good	2.38 \| good	9.527 \| good	42.129 \| good	0.148 \| good	2.912 \| good	0.141 \| good
2026-04-25T07:00:00.000Z	39 \| good	2.953 \| good	12.409 \| good	42.44 \| good	0.139 \| good	2.487 \| good	0.139 \| good
2026-04-25T08:00:00.000Z	40 \| good	3.546 \| good	15.97 \| good	42.854 \| good	0.131 \| good	2.061 \| good	0.136 \| good
2026-04-25T09:00:00.000Z	41 \| good	3.456 \| good	15.112 \| good	43.913 \| good	0.122 \| good	1.635 \| good	0.133 \| good
2026-04-25T10:00:00.000Z	40 \| good	2.745 \| good	11.494 \| good	43.414 \| good	0.122 \| good	1.604 \| good	0.133 \| good
2026-04-25T11:00:00.000Z	36 \| good	3.231 \| good	14.182 \| good	39.333 \| good	0.122 \| good	1.573 \| good	0.133 \| good
2026-04-25T12:00:00.000Z	36 \| good	4.021 \| good	17.497 \| good	38.871 \| good	0.122 \| good	1.541 \| good	0.133 \| good
2026-04-25T13:00:00.000Z	34 \| good	3.591 \| good	16.049 \| good	37.364 \| good	0.139 \| good	1.529 \| good	0.134 \| good
2026-04-25T14:00:00.000Z	34 \| good	4.398 \| good	19.243 \| good	36.541 \| good	0.155 \| good	1.516 \| good	0.135 \| good
2026-04-25T15:00:00.000Z	35 \| good	3.46 \| good	15.203 \| good	38.032 \| good	0.171 \| good	1.503 \| good	0.136 \| good
2026-04-25T16:00:00.000Z	38 \| good	3.303 \| good	14.292 \| good	40.741 \| good	0.182 \| good	1.367 \| good	0.136 \| good
2026-04-25T17:00:00.000Z	42 \| good	2.616 \| good	10.867 \| good	45.031 \| good	0.192 \| good	1.231 \| good	0.135 \| good
2026-04-25T18:00:00.000Z	44 \| good	3.213 \| good	14.038 \| good	47.747 \| good	0.203 \| good	1.094 \| good	0.134 \| good
2026-04-25T19:00:00.000Z	46 \| good	3.476 \| good	15.092 \| good	50.487 \| good	0.205 \| good	1.044 \| good	0.132 \| good
2026-04-25T20:00:00.000Z	48 \| good	2.985 \| good	12.208 \| good	52.408 \| good	0.206 \| good	0.993 \| good	0.129 \| good
2026-04-25T21:00:00.000Z	49 \| good	2.946 \| good	12.038 \| good	52.996 \| good	0.208 \| good	0.942 \| good	0.127 \| good
2026-04-25T22:00:00.000Z	47 \| good	1.329 \| good	5.269 \| good	51.421 \| good	0.223 \| good	1.058 \| good	0.128 \| good
2026-04-25T23:00:00.000Z	45 \| good	0.746 \| good	2.893 \| good	49.444 \| good	0.237 \| good	1.173 \| good	0.129 \| good
2026-04-26T00:00:00.000Z	44 \| good	4.915 \| good	21.026 \| good	48.236 \| good	0.252 \| good	1.288 \| good	0.129 \| good
2026-04-26T01:00:00.000Z	43 \| good	4.733 \| good	20.368 \| good	46.457 \| good	0.312 \| good	2.897 \| good	0.143 \| good
2026-04-26T02:00:00.000Z	35 \| good	5.673 \| good	24.635 \| good	38.186 \| good	0.373 \| good	4.506 \| good	0.156 \| good
2026-04-26T03:00:00.000Z	35 \| good	6.033 \| good	27.17 \| good	38.21 \| good	0.433 \| good	6.115 \| good	0.169 \| good
2026-04-26T04:00:00.000Z	35 \| good	4.511 \| good	19.383 \| good	38.327 \| good	0.452 \| good	6.607 \| good	0.173 \| good
2026-04-26T05:00:00.000Z	35 \| good	4.166 \| good	18.279 \| good	38.359 \| good	0.471 \| good	7.099 \| good	0.178 \| 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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