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

The current PM10 concentration at Louisville, Colorado is 10.35 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Louisville, Colorado is 0.483 ppb.

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

The current ozone (O3) concentration at Louisville, Colorado is 38.8 ppm.

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

The current nitrogen dioxide (NO2) concentration at Louisville, Colorado is 2.575 ppb.

Louisville, Colorado live air quality index now

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

The current PM2.5 concentration at Louisville, Colorado is 2.066 μg/m3.

Stay updated with real-time air quality in Louisville, 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

Louisville, Colorado

Last updated: ... (Local time)

Major air pollutants in Louisville, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.72 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

11.40 μg/m³

155

255

425

605+

Ozone (O₃)

37.57 ppb

201

201+

Sulfur Dioxide (SO₂)

0.39 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.11 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.13 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Louisville, Colorado

Get Live Pollen Counts

Louisville, Colorado

Scroll To Air Quality Map

Track live Louisville, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-12T09:00:00.000Z	41 \| good	3.561 \| good	13.463 \| good	44.286 \| good	0.407 \| good	13.511 \| good	0.304 \| good
2026-01-12T10:00:00.000Z	42 \| good	4.499 \| good	19.846 \| good	44.719 \| good	0.644 \| good	13.074 \| good	0.367 \| good
2026-01-12T11:00:00.000Z	42 \| good	2.97 \| good	8.104 \| good	45.048 \| good	0.773 \| good	11.778 \| good	0.412 \| good
2026-01-12T12:00:00.000Z	42 \| good	2.133 \| good	7.534 \| good	44.603 \| good	0.685 \| good	18.21 \| good	0.408 \| good
2026-01-12T13:00:00.000Z	40 \| good	2.187 \| good	6.698 \| good	42.872 \| good	0.839 \| good	16.028 \| good	0.437 \| good
2026-01-12T14:00:00.000Z	40 \| good	2.432 \| good	10.754 \| good	42.753 \| good	0.723 \| good	16.994 \| good	0.638 \| good
2026-01-12T15:00:00.000Z	38 \| good	2.816 \| good	10.895 \| good	41.234 \| good	0.89 \| good	19.675 \| good	0.593 \| good
2026-01-12T16:00:00.000Z	38 \| good	2.969 \| good	15.426 \| good	40.613 \| good	1.115 \| good	20.496 \| good	0.415 \| good
2026-01-12T17:00:00.000Z	37 \| good	3.144 \| good	14.416 \| good	39.815 \| good	0.717 \| good	20.314 \| good	0.305 \| good
2026-01-12T18:00:00.000Z	36 \| good	3.233 \| good	16.844 \| good	39.171 \| good	0.521 \| good	15.488 \| good	0.26 \| good
2026-01-12T19:00:00.000Z	37 \| good	3.107 \| good	17.886 \| good	39.968 \| good	0.515 \| good	11.729 \| good	0.274 \| good
2026-01-12T20:00:00.000Z	37 \| good	3.035 \| good	15.091 \| good	40.256 \| good	0.75 \| good	12.341 \| good	0.222 \| good
2026-01-12T21:00:00.000Z	39 \| good	2.893 \| good	17.102 \| good	41.766 \| good	0.406 \| good	11.548 \| good	0.252 \| good
2026-01-12T22:00:00.000Z	40 \| good	4.048 \| good	24.115 \| good	43.229 \| good	0.519 \| good	10.784 \| good	0.23 \| good
2026-01-12T23:00:00.000Z	40 \| good	5.367 \| good	25.569 \| good	43.364 \| good	0.411 \| good	12.409 \| good	0.327 \| good
2026-01-13T00:00:00.000Z	42 \| good	3.176 \| good	19.938 \| good	44.535 \| good	0.529 \| good	22.877 \| good	0.476 \| good
2026-01-13T01:00:00.000Z	42 \| good	3.426 \| good	17.595 \| good	45.162 \| good	0.529 \| good	27.528 \| good	0.472 \| good
2026-01-13T02:00:00.000Z	42 \| good	3.106 \| good	15.884 \| good	44.823 \| good	0.52 \| good	25.146 \| good	0.539 \| good
2026-01-13T03:00:00.000Z	41 \| good	2.946 \| good	14.897 \| good	43.948 \| good	0.505 \| good	23.394 \| good	0.744 \| good
2026-01-13T04:00:00.000Z	41 \| good	3.096 \| good	17.595 \| good	44.375 \| good	0.808 \| good	20.152 \| good	0.691 \| good
2026-01-13T05:00:00.000Z	41 \| good	3.256 \| good	18.2 \| good	43.997 \| good	1.105 \| good	17.169 \| good	0.529 \| good
2026-01-13T06:00:00.000Z	40 \| good	2.987 \| good	16.279 \| good	43.182 \| good	0.811 \| good	18.103 \| good	0.401 \| good
2026-01-13T07:00:00.000Z	40 \| good	2.758 \| good	13.243 \| good	43.231 \| good	0.724 \| good	21.14 \| good	0.385 \| good
2026-01-13T08:00:00.000Z	40 \| good	2.635 \| good	13.522 \| good	43.317 \| good	0.639 \| good	15.942 \| good	0.307 \| good
2026-01-13T09:00:00.000Z	39 \| good	2.033 \| good	9.221 \| good	42.347 \| good	0.776 \| good	15.764 \| good	0.304 \| good
2026-01-13T10:00:00.000Z	40 \| good	1.735 \| good	6.583 \| good	42.951 \| good	0.63 \| good	12.797 \| good	0.245 \| good
2026-01-13T11:00:00.000Z	40 \| good	1.597 \| good	7.551 \| good	42.918 \| good	0.483 \| good	12.957 \| good	0.319 \| good
2026-01-13T12:00:00.000Z	39 \| good	1.657 \| good	6.323 \| good	41.809 \| good	0.524 \| good	18.601 \| good	0.349 \| good
2026-01-13T13:00:00.000Z	38 \| good	1.484 \| good	5.78 \| good	41.042 \| good	0.809 \| good	17.786 \| good	0.349 \| good
2026-01-13T14:00:00.000Z	38 \| good	1.285 \| good	5.477 \| good	40.994 \| good	1.08 \| good	20.514 \| good	0.382 \| good
2026-01-13T15:00:00.000Z	39 \| good	1.996 \| good	9.376 \| good	41.733 \| good	1.03 \| good	21.332 \| good	0.545 \| good
2026-01-13T16:00:00.000Z	38 \| good	2.32 \| good	9.712 \| good	41.3 \| good	1.423 \| good	20.096 \| good	0.768 \| good
2026-01-13T17:00:00.000Z	38 \| good	2.433 \| good	14.66 \| good	41.053 \| good	1.539 \| good	17.59 \| good	0.571 \| good
2026-01-13T18:00:00.000Z	39 \| good	4.528 \| good	24.322 \| good	42.43 \| good	1.296 \| good	15.434 \| good	0.377 \| good
2026-01-13T19:00:00.000Z	41 \| good	5.225 \| good	26.607 \| good	43.509 \| good	1.161 \| good	13.166 \| good	0.362 \| good
2026-01-13T20:00:00.000Z	41 \| good	4.034 \| good	23.944 \| good	43.602 \| good	0.689 \| good	5.42 \| good	0.237 \| good
2026-01-13T21:00:00.000Z	39 \| good	3.146 \| good	26.3 \| good	42.398 \| good	0.476 \| good	6.052 \| good	0.189 \| good
2026-01-13T22:00:00.000Z	41 \| good	2.025 \| good	14.283 \| good	44.444 \| good	0.339 \| good	4.282 \| good	0.234 \| good
2026-01-13T23:00:00.000Z	43 \| good	2.002 \| good	10.542 \| good	46.305 \| good	0.471 \| good	3.42 \| good	0.281 \| good
2026-01-14T00:00:00.000Z	43 \| good	1.583 \| good	12.553 \| good	46.462 \| good	0.497 \| good	4.621 \| good	0.311 \| good
2026-01-14T01:00:00.000Z	44 \| good	1.641 \| good	10.818 \| good	46.552 \| good	0.453 \| good	6.321 \| good	0.421 \| good
2026-01-14T02:00:00.000Z	44 \| good	1.72 \| good	13.598 \| good	46.835 \| good	0.877 \| good	10.028 \| good	0.329 \| good
2026-01-14T03:00:00.000Z	36 \| good	2.957 \| good	12.47 \| good	38.976 \| good	0.386 \| good	9.245 \| good	0.182 \| good
2026-01-14T04:00:00.000Z	42 \| good	2.333 \| good	13.454 \| good	45.408 \| good	0.487 \| good	7.429 \| good	0.236 \| good
2026-01-14T05:00:00.000Z	41 \| good	2.016 \| good	11.051 \| good	43.832 \| good	0.552 \| good	5.747 \| good	0.191 \| good
2026-01-14T06:00:00.000Z	36 \| good	2.066 \| good	10.35 \| good	38.8 \| good	0.483 \| good	2.575 \| good	0.131 \| good
2026-01-14T07:00:00.000Z	35 \| good	1.721 \| good	11.398 \| good	37.573 \| good	0.39 \| good	2.11 \| good	0.131 \| good
2026-01-14T08:00:00.000Z	35 \| good	1.721 \| good	11.398 \| good	37.573 \| good	0.39 \| good	2.11 \| good	0.131 \| good
2026-01-14T07:00:00.000Z	33 \| good	5.693 \| good	24.753 \| good	22.93 \| good	0.26 \| good	3.573 \| good	0.131 \| good
2026-01-14T08:00:00.000Z	27 \| good	4.993 \| good	21.572 \| good	24.271 \| good	0.226 \| good	2.898 \| good	0.124 \| good
2026-01-14T09:00:00.000Z	22 \| good	4.279 \| good	18.554 \| good	23.928 \| good	0.193 \| good	2.223 \| good	0.117 \| good
2026-01-14T10:00:00.000Z	22 \| good	4.224 \| good	18.434 \| good	23.959 \| good	0.212 \| good	2.351 \| good	0.117 \| good
2026-01-14T11:00:00.000Z	24 \| good	3.596 \| good	15.261 \| good	25.624 \| good	0.232 \| good	2.48 \| good	0.117 \| good
2026-01-14T12:00:00.000Z	25 \| good	3.25 \| good	14.211 \| good	26.855 \| good	0.251 \| good	2.608 \| good	0.117 \| good
2026-01-14T13:00:00.000Z	26 \| good	3.507 \| good	15.2 \| good	28.107 \| good	0.36 \| good	5.51 \| good	0.143 \| good
2026-01-14T14:00:00.000Z	25 \| good	4.352 \| good	18.917 \| good	27.006 \| good	0.469 \| good	8.412 \| good	0.17 \| good
2026-01-14T15:00:00.000Z	27 \| good	4.843 \| good	21.152 \| good	28.459 \| good	0.578 \| good	11.313 \| good	0.197 \| good
2026-01-14T16:00:00.000Z	32 \| good	4.092 \| good	18.012 \| good	35.265 \| good	0.61 \| good	8.969 \| good	0.178 \| good
2026-01-14T17:00:00.000Z	33 \| good	3.884 \| good	16.85 \| good	36.252 \| good	0.643 \| good	6.624 \| good	0.159 \| good
2026-01-14T18:00:00.000Z	34 \| good	2.924 \| good	12.169 \| good	36.859 \| good	0.676 \| good	4.279 \| good	0.141 \| good
2026-01-14T19:00:00.000Z	36 \| good	2.634 \| good	10.924 \| good	38.725 \| good	0.64 \| good	3.952 \| good	0.136 \| good
2026-01-14T20:00:00.000Z	38 \| good	3.036 \| good	13.174 \| good	40.975 \| good	0.603 \| good	3.624 \| good	0.13 \| good
2026-01-14T21:00:00.000Z	39 \| good	2.792 \| good	11.266 \| good	41.784 \| good	0.567 \| good	3.297 \| good	0.125 \| good
2026-01-14T22:00:00.000Z	41 \| good	5.389 \| good	23.746 \| good	43.695 \| good	0.607 \| good	6.504 \| good	0.151 \| good
2026-01-14T23:00:00.000Z	41 \| good	3.176 \| good	13.7 \| good	44.383 \| good	0.647 \| good	9.711 \| good	0.176 \| good
2026-01-15T00:00:00.000Z	37 \| good	2.657 \| good	10.925 \| good	39.897 \| good	0.686 \| good	12.919 \| good	0.202 \| good
2026-01-15T01:00:00.000Z	34 \| good	2.363 \| good	9.893 \| good	37.486 \| good	0.71 \| good	14.647 \| good	0.224 \| good
2026-01-15T02:00:00.000Z	34 \| good	2.869 \| good	11.83 \| good	37.159 \| good	0.734 \| good	16.375 \| good	0.246 \| good
2026-01-15T03:00:00.000Z	32 \| good	3.132 \| good	13.625 \| good	35.338 \| good	0.758 \| good	18.103 \| good	0.268 \| good
2026-01-15T04:00:00.000Z	33 \| good	3.207 \| good	13.457 \| good	36.071 \| good	0.661 \| good	16.352 \| good	0.242 \| good
2026-01-15T05:00:00.000Z	35 \| good	3.125 \| good	13.337 \| good	38.365 \| good	0.565 \| good	14.6 \| good	0.215 \| good
2026-01-15T06:00:00.000Z	38 \| good	3.908 \| good	16.884 \| good	40.504 \| good	0.468 \| good	12.849 \| good	0.188 \| good
2026-01-15T07:00:00.000Z	39 \| good	4.112 \| good	17.749 \| good	41.99 \| good	0.386 \| good	10.593 \| good	0.171 \| good
2026-01-15T08:00:00.000Z	39 \| good	3.022 \| good	12.743 \| good	42.369 \| good	0.305 \| good	8.337 \| good	0.155 \| good
2026-01-15T09:00:00.000Z	39 \| good	1.944 \| good	8.126 \| good	42.259 \| good	0.224 \| good	6.081 \| good	0.138 \| good
2026-01-15T10:00:00.000Z	38 \| good	2.004 \| good	8.182 \| good	41.255 \| good	0.211 \| good	4.989 \| good	0.131 \| good
2026-01-15T11:00:00.000Z	38 \| good	2.234 \| good	9.301 \| good	41.402 \| good	0.198 \| good	3.896 \| good	0.125 \| good
2026-01-15T12:00:00.000Z	39 \| good	2.415 \| good	9.85 \| good	42.114 \| good	0.186 \| good	2.804 \| good	0.118 \| good
2026-01-15T13:00:00.000Z	37 \| good	2.18 \| good	9.091 \| good	39.849 \| good	0.234 \| good	3.477 \| good	0.126 \| good
2026-01-15T14:00:00.000Z	37 \| good	2.493 \| good	10.214 \| good	40.189 \| good	0.282 \| good	4.15 \| good	0.134 \| good
2026-01-15T15:00:00.000Z	38 \| good	2.063 \| good	8.372 \| good	40.517 \| good	0.33 \| good	4.823 \| good	0.142 \| good
2026-01-15T16:00:00.000Z	41 \| good	2.259 \| good	9.342 \| good	43.614 \| good	0.336 \| good	4.21 \| good	0.139 \| good
2026-01-15T17:00:00.000Z	44 \| good	1.871 \| good	7.556 \| good	46.58 \| good	0.342 \| good	3.597 \| good	0.136 \| good
2026-01-15T18:00:00.000Z	42 \| good	2.262 \| good	9.367 \| good	44.856 \| good	0.348 \| good	2.983 \| good	0.133 \| good
2026-01-15T19:00:00.000Z	41 \| good	2.284 \| good	9.305 \| good	44.342 \| good	0.32 \| good	2.531 \| good	0.126 \| good
2026-01-15T20:00:00.000Z	43 \| good	2.657 \| good	10.501 \| good	45.949 \| good	0.293 \| good	2.078 \| good	0.118 \| good
2026-01-15T21:00:00.000Z	44 \| good	3.107 \| good	12.89 \| good	48.261 \| good	0.266 \| good	1.625 \| good	0.111 \| good
2026-01-15T22:00:00.000Z	45 \| good	3.977 \| good	17.206 \| good	49.292 \| good	0.275 \| good	2.212 \| good	0.116 \| good
2026-01-15T23:00:00.000Z	47 \| good	1.168 \| good	4.416 \| good	50.694 \| good	0.285 \| good	2.8 \| good	0.121 \| good
2026-01-16T00:00:00.000Z	44 \| good	2.354 \| good	9.585 \| good	48.132 \| good	0.294 \| good	3.387 \| good	0.126 \| good
2026-01-16T01:00:00.000Z	45 \| good	2.014 \| good	8.15 \| good	49.273 \| good	0.378 \| good	5.306 \| good	0.143 \| good
2026-01-16T02:00:00.000Z	46 \| good	2.012 \| good	8.15 \| good	50.394 \| good	0.462 \| good	7.225 \| good	0.161 \| good
2026-01-16T03:00:00.000Z	45 \| good	1.279 \| good	5.027 \| good	48.729 \| good	0.546 \| good	9.144 \| good	0.179 \| good
2026-01-16T04:00:00.000Z	44 \| good	1.395 \| good	5.481 \| good	48.059 \| good	0.486 \| good	7.728 \| good	0.167 \| good
2026-01-16T05:00:00.000Z	39 \| good	1.107 \| good	4.412 \| good	41.755 \| good	0.426 \| good	6.312 \| good	0.155 \| good
2026-01-16T06:00:00.000Z	36 \| good	4.969 \| good	5.058 \| good	38.742 \| good	0.347 \| good	4.227 \| good	0.139 \| good

Louisville

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Louisville, 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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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How often is the air quality data for Louisville, Colorado updated?

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

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

The worst air quality in Louisville, Colorado in the last 24 hours was observed at 02:00:00 on 2026-01-14.

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

In the last 24 hrs, the best air quality in Louisville, Colorado was observed at 03:00:00 on 2026-01-14.

What is the current air quality in Louisville, Colorado?

The current air quality in Louisville, Colorado is 36, categorized as Good based on real-time data.

What pollutant is the most common in Louisville, Colorado?

The most common pollutant in Louisville, Colorado is O3.

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

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

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

The current PM_2.5 concentration at Louisville, Colorado is 2.066 μg/m³.

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

The current PM₁₀ concentration at Louisville, Colorado is 10.35 μg/m³.

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

The current carbon monoxide (CO) concentration at Louisville, Colorado is 0.131 ppm.

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

The current sulfur dioxide (SO₂) concentration at Louisville, Colorado is 0.483 ppb.

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

The current ozone (O₃) concentration at Louisville, Colorado is 38.8 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Louisville, Colorado is 2.575 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-12T09:00:00.000Z	41 \| good	3.561 \| good	13.463 \| good	44.286 \| good	0.407 \| good	13.511 \| good	0.304 \| good
2026-01-12T10:00:00.000Z	42 \| good	4.499 \| good	19.846 \| good	44.719 \| good	0.644 \| good	13.074 \| good	0.367 \| good
2026-01-12T11:00:00.000Z	42 \| good	2.97 \| good	8.104 \| good	45.048 \| good	0.773 \| good	11.778 \| good	0.412 \| good
2026-01-12T12:00:00.000Z	42 \| good	2.133 \| good	7.534 \| good	44.603 \| good	0.685 \| good	18.21 \| good	0.408 \| good
2026-01-12T13:00:00.000Z	40 \| good	2.187 \| good	6.698 \| good	42.872 \| good	0.839 \| good	16.028 \| good	0.437 \| good
2026-01-12T14:00:00.000Z	40 \| good	2.432 \| good	10.754 \| good	42.753 \| good	0.723 \| good	16.994 \| good	0.638 \| good
2026-01-12T15:00:00.000Z	38 \| good	2.816 \| good	10.895 \| good	41.234 \| good	0.89 \| good	19.675 \| good	0.593 \| good
2026-01-12T16:00:00.000Z	38 \| good	2.969 \| good	15.426 \| good	40.613 \| good	1.115 \| good	20.496 \| good	0.415 \| good
2026-01-12T17:00:00.000Z	37 \| good	3.144 \| good	14.416 \| good	39.815 \| good	0.717 \| good	20.314 \| good	0.305 \| good
2026-01-12T18:00:00.000Z	36 \| good	3.233 \| good	16.844 \| good	39.171 \| good	0.521 \| good	15.488 \| good	0.26 \| good
2026-01-12T19:00:00.000Z	37 \| good	3.107 \| good	17.886 \| good	39.968 \| good	0.515 \| good	11.729 \| good	0.274 \| good
2026-01-12T20:00:00.000Z	37 \| good	3.035 \| good	15.091 \| good	40.256 \| good	0.75 \| good	12.341 \| good	0.222 \| good
2026-01-12T21:00:00.000Z	39 \| good	2.893 \| good	17.102 \| good	41.766 \| good	0.406 \| good	11.548 \| good	0.252 \| good
2026-01-12T22:00:00.000Z	40 \| good	4.048 \| good	24.115 \| good	43.229 \| good	0.519 \| good	10.784 \| good	0.23 \| good
2026-01-12T23:00:00.000Z	40 \| good	5.367 \| good	25.569 \| good	43.364 \| good	0.411 \| good	12.409 \| good	0.327 \| good
2026-01-13T00:00:00.000Z	42 \| good	3.176 \| good	19.938 \| good	44.535 \| good	0.529 \| good	22.877 \| good	0.476 \| good
2026-01-13T01:00:00.000Z	42 \| good	3.426 \| good	17.595 \| good	45.162 \| good	0.529 \| good	27.528 \| good	0.472 \| good
2026-01-13T02:00:00.000Z	42 \| good	3.106 \| good	15.884 \| good	44.823 \| good	0.52 \| good	25.146 \| good	0.539 \| good
2026-01-13T03:00:00.000Z	41 \| good	2.946 \| good	14.897 \| good	43.948 \| good	0.505 \| good	23.394 \| good	0.744 \| good
2026-01-13T04:00:00.000Z	41 \| good	3.096 \| good	17.595 \| good	44.375 \| good	0.808 \| good	20.152 \| good	0.691 \| good
2026-01-13T05:00:00.000Z	41 \| good	3.256 \| good	18.2 \| good	43.997 \| good	1.105 \| good	17.169 \| good	0.529 \| good
2026-01-13T06:00:00.000Z	40 \| good	2.987 \| good	16.279 \| good	43.182 \| good	0.811 \| good	18.103 \| good	0.401 \| good
2026-01-13T07:00:00.000Z	40 \| good	2.758 \| good	13.243 \| good	43.231 \| good	0.724 \| good	21.14 \| good	0.385 \| good
2026-01-13T08:00:00.000Z	40 \| good	2.635 \| good	13.522 \| good	43.317 \| good	0.639 \| good	15.942 \| good	0.307 \| good
2026-01-13T09:00:00.000Z	39 \| good	2.033 \| good	9.221 \| good	42.347 \| good	0.776 \| good	15.764 \| good	0.304 \| good
2026-01-13T10:00:00.000Z	40 \| good	1.735 \| good	6.583 \| good	42.951 \| good	0.63 \| good	12.797 \| good	0.245 \| good
2026-01-13T11:00:00.000Z	40 \| good	1.597 \| good	7.551 \| good	42.918 \| good	0.483 \| good	12.957 \| good	0.319 \| good
2026-01-13T12:00:00.000Z	39 \| good	1.657 \| good	6.323 \| good	41.809 \| good	0.524 \| good	18.601 \| good	0.349 \| good
2026-01-13T13:00:00.000Z	38 \| good	1.484 \| good	5.78 \| good	41.042 \| good	0.809 \| good	17.786 \| good	0.349 \| good
2026-01-13T14:00:00.000Z	38 \| good	1.285 \| good	5.477 \| good	40.994 \| good	1.08 \| good	20.514 \| good	0.382 \| good
2026-01-13T15:00:00.000Z	39 \| good	1.996 \| good	9.376 \| good	41.733 \| good	1.03 \| good	21.332 \| good	0.545 \| good
2026-01-13T16:00:00.000Z	38 \| good	2.32 \| good	9.712 \| good	41.3 \| good	1.423 \| good	20.096 \| good	0.768 \| good
2026-01-13T17:00:00.000Z	38 \| good	2.433 \| good	14.66 \| good	41.053 \| good	1.539 \| good	17.59 \| good	0.571 \| good
2026-01-13T18:00:00.000Z	39 \| good	4.528 \| good	24.322 \| good	42.43 \| good	1.296 \| good	15.434 \| good	0.377 \| good
2026-01-13T19:00:00.000Z	41 \| good	5.225 \| good	26.607 \| good	43.509 \| good	1.161 \| good	13.166 \| good	0.362 \| good
2026-01-13T20:00:00.000Z	41 \| good	4.034 \| good	23.944 \| good	43.602 \| good	0.689 \| good	5.42 \| good	0.237 \| good
2026-01-13T21:00:00.000Z	39 \| good	3.146 \| good	26.3 \| good	42.398 \| good	0.476 \| good	6.052 \| good	0.189 \| good
2026-01-13T22:00:00.000Z	41 \| good	2.025 \| good	14.283 \| good	44.444 \| good	0.339 \| good	4.282 \| good	0.234 \| good
2026-01-13T23:00:00.000Z	43 \| good	2.002 \| good	10.542 \| good	46.305 \| good	0.471 \| good	3.42 \| good	0.281 \| good
2026-01-14T00:00:00.000Z	43 \| good	1.583 \| good	12.553 \| good	46.462 \| good	0.497 \| good	4.621 \| good	0.311 \| good
2026-01-14T01:00:00.000Z	44 \| good	1.641 \| good	10.818 \| good	46.552 \| good	0.453 \| good	6.321 \| good	0.421 \| good
2026-01-14T02:00:00.000Z	44 \| good	1.72 \| good	13.598 \| good	46.835 \| good	0.877 \| good	10.028 \| good	0.329 \| good
2026-01-14T03:00:00.000Z	36 \| good	2.957 \| good	12.47 \| good	38.976 \| good	0.386 \| good	9.245 \| good	0.182 \| good
2026-01-14T04:00:00.000Z	42 \| good	2.333 \| good	13.454 \| good	45.408 \| good	0.487 \| good	7.429 \| good	0.236 \| good
2026-01-14T05:00:00.000Z	41 \| good	2.016 \| good	11.051 \| good	43.832 \| good	0.552 \| good	5.747 \| good	0.191 \| good
2026-01-14T06:00:00.000Z	36 \| good	2.066 \| good	10.35 \| good	38.8 \| good	0.483 \| good	2.575 \| good	0.131 \| good
2026-01-14T07:00:00.000Z	35 \| good	1.721 \| good	11.398 \| good	37.573 \| good	0.39 \| good	2.11 \| good	0.131 \| good
2026-01-14T08:00:00.000Z	35 \| good	1.721 \| good	11.398 \| good	37.573 \| good	0.39 \| good	2.11 \| good	0.131 \| good
2026-01-14T07:00:00.000Z	33 \| good	5.693 \| good	24.753 \| good	22.93 \| good	0.26 \| good	3.573 \| good	0.131 \| good
2026-01-14T08:00:00.000Z	27 \| good	4.993 \| good	21.572 \| good	24.271 \| good	0.226 \| good	2.898 \| good	0.124 \| good
2026-01-14T09:00:00.000Z	22 \| good	4.279 \| good	18.554 \| good	23.928 \| good	0.193 \| good	2.223 \| good	0.117 \| good
2026-01-14T10:00:00.000Z	22 \| good	4.224 \| good	18.434 \| good	23.959 \| good	0.212 \| good	2.351 \| good	0.117 \| good
2026-01-14T11:00:00.000Z	24 \| good	3.596 \| good	15.261 \| good	25.624 \| good	0.232 \| good	2.48 \| good	0.117 \| good
2026-01-14T12:00:00.000Z	25 \| good	3.25 \| good	14.211 \| good	26.855 \| good	0.251 \| good	2.608 \| good	0.117 \| good
2026-01-14T13:00:00.000Z	26 \| good	3.507 \| good	15.2 \| good	28.107 \| good	0.36 \| good	5.51 \| good	0.143 \| good
2026-01-14T14:00:00.000Z	25 \| good	4.352 \| good	18.917 \| good	27.006 \| good	0.469 \| good	8.412 \| good	0.17 \| good
2026-01-14T15:00:00.000Z	27 \| good	4.843 \| good	21.152 \| good	28.459 \| good	0.578 \| good	11.313 \| good	0.197 \| good
2026-01-14T16:00:00.000Z	32 \| good	4.092 \| good	18.012 \| good	35.265 \| good	0.61 \| good	8.969 \| good	0.178 \| good
2026-01-14T17:00:00.000Z	33 \| good	3.884 \| good	16.85 \| good	36.252 \| good	0.643 \| good	6.624 \| good	0.159 \| good
2026-01-14T18:00:00.000Z	34 \| good	2.924 \| good	12.169 \| good	36.859 \| good	0.676 \| good	4.279 \| good	0.141 \| good
2026-01-14T19:00:00.000Z	36 \| good	2.634 \| good	10.924 \| good	38.725 \| good	0.64 \| good	3.952 \| good	0.136 \| good
2026-01-14T20:00:00.000Z	38 \| good	3.036 \| good	13.174 \| good	40.975 \| good	0.603 \| good	3.624 \| good	0.13 \| good
2026-01-14T21:00:00.000Z	39 \| good	2.792 \| good	11.266 \| good	41.784 \| good	0.567 \| good	3.297 \| good	0.125 \| good
2026-01-14T22:00:00.000Z	41 \| good	5.389 \| good	23.746 \| good	43.695 \| good	0.607 \| good	6.504 \| good	0.151 \| good
2026-01-14T23:00:00.000Z	41 \| good	3.176 \| good	13.7 \| good	44.383 \| good	0.647 \| good	9.711 \| good	0.176 \| good
2026-01-15T00:00:00.000Z	37 \| good	2.657 \| good	10.925 \| good	39.897 \| good	0.686 \| good	12.919 \| good	0.202 \| good
2026-01-15T01:00:00.000Z	34 \| good	2.363 \| good	9.893 \| good	37.486 \| good	0.71 \| good	14.647 \| good	0.224 \| good
2026-01-15T02:00:00.000Z	34 \| good	2.869 \| good	11.83 \| good	37.159 \| good	0.734 \| good	16.375 \| good	0.246 \| good
2026-01-15T03:00:00.000Z	32 \| good	3.132 \| good	13.625 \| good	35.338 \| good	0.758 \| good	18.103 \| good	0.268 \| good
2026-01-15T04:00:00.000Z	33 \| good	3.207 \| good	13.457 \| good	36.071 \| good	0.661 \| good	16.352 \| good	0.242 \| good
2026-01-15T05:00:00.000Z	35 \| good	3.125 \| good	13.337 \| good	38.365 \| good	0.565 \| good	14.6 \| good	0.215 \| good
2026-01-15T06:00:00.000Z	38 \| good	3.908 \| good	16.884 \| good	40.504 \| good	0.468 \| good	12.849 \| good	0.188 \| good
2026-01-15T07:00:00.000Z	39 \| good	4.112 \| good	17.749 \| good	41.99 \| good	0.386 \| good	10.593 \| good	0.171 \| good
2026-01-15T08:00:00.000Z	39 \| good	3.022 \| good	12.743 \| good	42.369 \| good	0.305 \| good	8.337 \| good	0.155 \| good
2026-01-15T09:00:00.000Z	39 \| good	1.944 \| good	8.126 \| good	42.259 \| good	0.224 \| good	6.081 \| good	0.138 \| good
2026-01-15T10:00:00.000Z	38 \| good	2.004 \| good	8.182 \| good	41.255 \| good	0.211 \| good	4.989 \| good	0.131 \| good
2026-01-15T11:00:00.000Z	38 \| good	2.234 \| good	9.301 \| good	41.402 \| good	0.198 \| good	3.896 \| good	0.125 \| good
2026-01-15T12:00:00.000Z	39 \| good	2.415 \| good	9.85 \| good	42.114 \| good	0.186 \| good	2.804 \| good	0.118 \| good
2026-01-15T13:00:00.000Z	37 \| good	2.18 \| good	9.091 \| good	39.849 \| good	0.234 \| good	3.477 \| good	0.126 \| good
2026-01-15T14:00:00.000Z	37 \| good	2.493 \| good	10.214 \| good	40.189 \| good	0.282 \| good	4.15 \| good	0.134 \| good
2026-01-15T15:00:00.000Z	38 \| good	2.063 \| good	8.372 \| good	40.517 \| good	0.33 \| good	4.823 \| good	0.142 \| good
2026-01-15T16:00:00.000Z	41 \| good	2.259 \| good	9.342 \| good	43.614 \| good	0.336 \| good	4.21 \| good	0.139 \| good
2026-01-15T17:00:00.000Z	44 \| good	1.871 \| good	7.556 \| good	46.58 \| good	0.342 \| good	3.597 \| good	0.136 \| good
2026-01-15T18:00:00.000Z	42 \| good	2.262 \| good	9.367 \| good	44.856 \| good	0.348 \| good	2.983 \| good	0.133 \| good
2026-01-15T19:00:00.000Z	41 \| good	2.284 \| good	9.305 \| good	44.342 \| good	0.32 \| good	2.531 \| good	0.126 \| good
2026-01-15T20:00:00.000Z	43 \| good	2.657 \| good	10.501 \| good	45.949 \| good	0.293 \| good	2.078 \| good	0.118 \| good
2026-01-15T21:00:00.000Z	44 \| good	3.107 \| good	12.89 \| good	48.261 \| good	0.266 \| good	1.625 \| good	0.111 \| good
2026-01-15T22:00:00.000Z	45 \| good	3.977 \| good	17.206 \| good	49.292 \| good	0.275 \| good	2.212 \| good	0.116 \| good
2026-01-15T23:00:00.000Z	47 \| good	1.168 \| good	4.416 \| good	50.694 \| good	0.285 \| good	2.8 \| good	0.121 \| good
2026-01-16T00:00:00.000Z	44 \| good	2.354 \| good	9.585 \| good	48.132 \| good	0.294 \| good	3.387 \| good	0.126 \| good
2026-01-16T01:00:00.000Z	45 \| good	2.014 \| good	8.15 \| good	49.273 \| good	0.378 \| good	5.306 \| good	0.143 \| good
2026-01-16T02:00:00.000Z	46 \| good	2.012 \| good	8.15 \| good	50.394 \| good	0.462 \| good	7.225 \| good	0.161 \| good
2026-01-16T03:00:00.000Z	45 \| good	1.279 \| good	5.027 \| good	48.729 \| good	0.546 \| good	9.144 \| good	0.179 \| good
2026-01-16T04:00:00.000Z	44 \| good	1.395 \| good	5.481 \| good	48.059 \| good	0.486 \| good	7.728 \| good	0.167 \| good
2026-01-16T05:00:00.000Z	39 \| good	1.107 \| good	4.412 \| good	41.755 \| good	0.426 \| good	6.312 \| good	0.155 \| good
2026-01-16T06:00:00.000Z	36 \| good	4.969 \| good	5.058 \| good	38.742 \| good	0.347 \| good	4.227 \| good	0.139 \| good

Louisville, Colorado live air quality index now

Major air pollutants in Louisville, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Louisville, Colorado air quality forecast and history

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Louisville, Colorado air quality map: Track AQI near you

Air quality in nearby cities

Lafayette, Colorado

Superior, Colorado

Broomfield, Colorado

Gunbarrel, Colorado

Erie, Colorado

Boulder, Colorado

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Frequently asked questions

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What is the current air quality in Louisville, Colorado?

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What is the current concentration of PM2.5 in Louisville, Colorado?

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

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

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

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

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

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 Louisville, Colorado?

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

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

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

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