What is the current level of PM10 in Four Square Mile, Colorado?

Four Square Mile, Colorado currently has a PM10 concentration of 27.713 μg/m3.

What is the current level of sulfur dioxide (SO2) in Four Square Mile, Colorado?

The current sulfur dioxide (SO2) concentration in Four Square Mile, Colorado is 0.808 ppb.

What is the current level of ozone (O3) in Four Square Mile, Colorado?

Four Square Mile, Colorado currently has an ozone (O3) concentration of 38.365 ppm.

What is the current level of nitrogen dioxide (NO2) in Four Square Mile, Colorado?

The current level of nitrogen dioxide (NO2) in Four Square Mile, Colorado is 11.911 ppb.

Current air quality index in Four Square Mile, Colorado today

Q: What is the PM2.5 concentration in Four Square Mile, Colorado right now?

Four Square Mile, Colorado currently has a PM2.5 concentration of 6.278 μg/m3.

Stay updated with real-time air quality in Four Square Mile, 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

Four Square Mile, Colorado

Last updated: ... (Local time)

Common air pollutants in Four Square Mile, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.47 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.55 μg/m³

155

255

425

605+

Ozone (O₃)

36.42 ppb

201

201+

Sulfur Dioxide (SO₂)

0.73 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

16.48 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Four Square Mile, Colorado

Get Live Pollen Counts

Four Square Mile, Colorado

Scroll To Air Quality Map

Track live Four Square Mile, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-11T13:00:00.000Z	52 \| moderate	10.466 \| good	46.599 \| good	39.342 \| good	1.065 \| good	30.554 \| good	0.504 \| good
2026-08-11T14:00:00.000Z	54 \| moderate	10.578 \| good	46.341 \| good	37.271 \| good	0.985 \| good	30.506 \| good	0.445 \| good
2026-08-11T15:00:00.000Z	54 \| moderate	11.211 \| good	47.85 \| good	34.937 \| good	1.286 \| good	28.662 \| good	0.389 \| good
2026-08-11T16:00:00.000Z	56 \| moderate	11.57 \| good	51.743 \| good	40.053 \| good	1.331 \| good	26.008 \| good	0.328 \| good
2026-08-11T17:00:00.000Z	56 \| moderate	11.661 \| good	52.228 \| good	53.578 \| good	1.006 \| good	12.454 \| good	0.291 \| good
2026-08-11T18:00:00.000Z	67 \| moderate	12.176 \| fine	53.845 \| good	60.132 \| fine	0.781 \| good	10.532 \| good	0.201 \| good
2026-08-11T19:00:00.000Z	80 \| moderate	13.061 \| fine	58.203 \| fine	63.805 \| fine	0.923 \| good	12.087 \| good	0.257 \| good
2026-08-11T20:00:00.000Z	84 \| moderate	13.356 \| fine	59.606 \| fine	65.282 \| fine	0.888 \| good	20.408 \| good	0.408 \| good
2026-08-11T21:00:00.000Z	105 \| sensitive	14.179 \| fine	63.797 \| fine	72.099 \| moderate	0.843 \| good	24.455 \| good	0.43 \| good
2026-08-11T22:00:00.000Z	101 \| sensitive	13.659 \| fine	61.493 \| fine	70.976 \| fine	0.798 \| good	18.685 \| good	0.374 \| good
2026-08-11T23:00:00.000Z	93 \| moderate	12.172 \| fine	53.423 \| good	67.925 \| fine	0.759 \| good	20.18 \| good	0.43 \| good
2026-08-12T00:00:00.000Z	84 \| moderate	11.272 \| good	50.386 \| good	64.689 \| fine	0.632 \| good	15.968 \| good	0.371 \| good
2026-08-12T01:00:00.000Z	77 \| moderate	10.497 \| good	46.807 \| good	62.806 \| fine	0.714 \| good	19.461 \| good	0.405 \| good
2026-08-12T02:00:00.000Z	74 \| moderate	9.985 \| good	44.437 \| good	62.304 \| fine	0.752 \| good	18.924 \| good	0.405 \| good
2026-08-12T03:00:00.000Z	77 \| moderate	23.265 \| fine	101.584 \| fine	49.194 \| good	0.222 \| good	5.606 \| good	0.181 \| good
2026-08-12T04:00:00.000Z	52 \| moderate	9.575 \| good	42.367 \| good	51.201 \| good	0.63 \| good	17.268 \| good	0.468 \| good
2026-08-12T05:00:00.000Z	52 \| moderate	9.758 \| good	43.89 \| good	51.381 \| good	0.63 \| good	19.259 \| good	0.354 \| good
2026-08-12T06:00:00.000Z	52 \| moderate	10.077 \| good	44.816 \| good	48.358 \| good	0.595 \| good	17.676 \| good	0.354 \| good
2026-08-12T07:00:00.000Z	52 \| moderate	10.462 \| good	46.358 \| good	45.553 \| good	0.621 \| good	15.21 \| good	0.291 \| good
2026-08-12T08:00:00.000Z	52 \| moderate	10.343 \| good	45.82 \| good	44.678 \| good	0.678 \| good	14.901 \| good	0.257 \| good
2026-08-12T09:00:00.000Z	52 \| moderate	9.786 \| good	43.346 \| good	44.15 \| good	0.772 \| good	9.672 \| good	0.257 \| good
2026-08-12T10:00:00.000Z	49 \| good	9.131 \| good	39.305 \| good	42.957 \| good	0.689 \| good	9.471 \| good	0.257 \| good
2026-08-12T11:00:00.000Z	49 \| good	8.885 \| good	38.392 \| good	38.959 \| good	0.726 \| good	12.415 \| good	0.2 \| good
2026-08-12T12:00:00.000Z	49 \| good	8.54 \| good	35.995 \| good	37.955 \| good	0.741 \| good	24.093 \| good	0.432 \| good
2026-08-12T13:00:00.000Z	49 \| good	8.719 \| good	38.746 \| good	35.442 \| good	0.72 \| good	30.875 \| good	0.525 \| good
2026-08-12T14:00:00.000Z	49 \| good	9.157 \| good	40.249 \| good	33.76 \| good	0.902 \| good	35.572 \| good	0.796 \| good
2026-08-12T15:00:00.000Z	52 \| moderate	9.75 \| good	44.658 \| good	34.592 \| good	1.091 \| good	30.846 \| good	0.562 \| good
2026-08-12T16:00:00.000Z	52 \| moderate	10.127 \| good	45.068 \| good	45.681 \| good	0.855 \| good	22.583 \| good	0.411 \| good
2026-08-12T17:00:00.000Z	52 \| moderate	10.463 \| good	46.782 \| good	51.033 \| good	1.069 \| good	13.956 \| good	0.316 \| good
2026-08-12T18:00:00.000Z	54 \| moderate	10.86 \| good	48.197 \| good	55.307 \| fine	1.338 \| good	14.35 \| good	0.316 \| good
2026-08-12T19:00:00.000Z	100 \| moderate	11.165 \| good	49.663 \| good	69.562 \| fine	1.3 \| good	19.264 \| good	0.316 \| good
2026-08-12T20:00:00.000Z	101 \| sensitive	11.135 \| good	50.32 \| good	70.583 \| fine	0.996 \| good	16.907 \| good	0.385 \| good
2026-08-12T21:00:00.000Z	87 \| moderate	10.06 \| good	44.876 \| good	65.8 \| fine	0.745 \| good	16.452 \| good	0.374 \| good
2026-08-12T22:00:00.000Z	87 \| moderate	7.609 \| good	33.394 \| good	65.888 \| fine	0.798 \| good	18.385 \| good	0.433 \| good
2026-08-12T23:00:00.000Z	90 \| moderate	7.091 \| good	33.422 \| good	67.428 \| fine	0.714 \| good	13.647 \| good	0.317 \| good
2026-08-13T00:00:00.000Z	84 \| moderate	7.577 \| good	34.9 \| good	64.747 \| fine	0.804 \| good	13.061 \| good	0.316 \| good
2026-08-13T01:00:00.000Z	67 \| moderate	9.433 \| good	42.627 \| good	60.157 \| fine	0.797 \| good	16.949 \| good	0.374 \| good
2026-08-13T02:00:00.000Z	64 \| moderate	9.407 \| good	41.842 \| good	58.602 \| fine	0.836 \| good	15.326 \| good	0.433 \| good
2026-08-13T03:00:00.000Z	48 \| good	7.934 \| good	35.059 \| good	52.202 \| good	0.621 \| good	15.967 \| good	0.377 \| good
2026-08-13T04:00:00.000Z	58 \| moderate	7.08 \| good	31.36 \| good	56.767 \| fine	0.561 \| good	11.115 \| good	0.316 \| good
2026-08-13T05:00:00.000Z	58 \| moderate	6.331 \| good	28.305 \| good	57.326 \| fine	0.613 \| good	8.785 \| good	0.254 \| good
2026-08-13T06:00:00.000Z	48 \| good	5.96 \| good	26.888 \| good	52.174 \| good	0.665 \| good	8.416 \| good	0.257 \| good
2026-08-13T07:00:00.000Z	44 \| good	6.056 \| good	27.574 \| good	48.107 \| good	0.649 \| good	9.525 \| good	0.198 \| good
2026-08-13T08:00:00.000Z	42 \| good	6.097 \| good	27.346 \| good	45.03 \| good	0.65 \| good	10.843 \| good	0.257 \| good
2026-08-13T09:00:00.000Z	41 \| good	6.259 \| good	27.132 \| good	44.183 \| good	0.695 \| good	10.908 \| good	0.257 \| good
2026-08-13T10:00:00.000Z	35 \| good	6.278 \| good	27.713 \| good	38.365 \| good	0.808 \| good	11.911 \| good	0.254 \| good
2026-08-13T11:00:00.000Z	33 \| good	6.475 \| good	28.548 \| good	36.42 \| good	0.734 \| good	16.485 \| good	0.257 \| good
2026-08-13T12:00:00.000Z	33 \| good	6.475 \| good	28.548 \| good	36.42 \| good	0.734 \| good	16.485 \| good	0.257 \| good
2026-08-13T12:00:00.000Z	56 \| moderate	12.018 \| good	53.887 \| good	41.837 \| good	0.197 \| good	9.418 \| good	0.206 \| good
2026-08-13T13:00:00.000Z	56 \| moderate	12.193 \| fine	54.568 \| good	45.092 \| good	0.199 \| good	7.789 \| good	0.2 \| good
2026-08-13T14:00:00.000Z	56 \| moderate	12.26 \| fine	55.283 \| fine	45.551 \| good	0.249 \| good	6.314 \| good	0.194 \| good
2026-08-13T15:00:00.000Z	58 \| moderate	12.99 \| fine	58.774 \| fine	46.601 \| good	0.385 \| good	3.904 \| good	0.167 \| good
2026-08-13T16:00:00.000Z	60 \| moderate	14.349 \| fine	64.713 \| fine	47.271 \| good	0.393 \| good	2.49 \| good	0.158 \| good
2026-08-13T17:00:00.000Z	62 \| moderate	14.873 \| fine	66.676 \| fine	50.254 \| good	0.364 \| good	1.646 \| good	0.154 \| good
2026-08-13T18:00:00.000Z	62 \| moderate	15.489 \| fine	69.144 \| fine	56.139 \| fine	0.314 \| good	1.06 \| good	0.151 \| good
2026-08-13T19:00:00.000Z	66 \| moderate	17.141 \| fine	75.684 \| fine	56.719 \| fine	0.261 \| good	0.79 \| good	0.148 \| good
2026-08-13T20:00:00.000Z	56 \| moderate	12.297 \| fine	55.283 \| fine	54.783 \| good	0.216 \| good	0.785 \| good	0.145 \| good
2026-08-13T21:00:00.000Z	48 \| good	7.78 \| good	34.261 \| good	51.795 \| good	0.183 \| good	0.906 \| good	0.144 \| good
2026-08-13T22:00:00.000Z	50 \| good	7.482 \| good	33.033 \| good	54.452 \| good	0.168 \| good	1.101 \| good	0.144 \| good
2026-08-13T23:00:00.000Z	49 \| good	3.411 \| good	14.704 \| good	52.652 \| good	0.166 \| good	1.633 \| good	0.147 \| good
2026-08-14T00:00:00.000Z	45 \| good	3.33 \| good	14.323 \| good	48.782 \| good	0.153 \| good	2.762 \| good	0.156 \| good
2026-08-14T01:00:00.000Z	46 \| good	1.579 \| good	6.368 \| good	50.433 \| good	0.17 \| good	4.089 \| good	0.166 \| good
2026-08-14T02:00:00.000Z	42 \| good	5.025 \| good	21.686 \| good	44.85 \| good	0.197 \| good	5.245 \| good	0.173 \| good
2026-08-14T03:00:00.000Z	38 \| good	6.983 \| good	30.694 \| good	39.801 \| good	0.203 \| good	7.271 \| good	0.186 \| good
2026-08-14T04:00:00.000Z	41 \| good	7.028 \| good	31.307 \| good	44.177 \| good	0.195 \| good	7.537 \| good	0.188 \| good
2026-08-14T05:00:00.000Z	38 \| good	7.494 \| good	32.757 \| good	41.094 \| good	0.186 \| good	7.15 \| good	0.186 \| good
2026-08-14T06:00:00.000Z	38 \| good	7.484 \| good	33.194 \| good	39.24 \| good	0.195 \| good	7.7 \| good	0.192 \| good
2026-08-14T07:00:00.000Z	44 \| good	7.839 \| good	34.203 \| good	38.638 \| good	0.207 \| good	8.415 \| good	0.2 \| good
2026-08-14T08:00:00.000Z	44 \| good	7.962 \| good	35.004 \| good	38.893 \| good	0.209 \| good	8.811 \| good	0.203 \| good
2026-08-14T09:00:00.000Z	38 \| good	6.503 \| good	29.143 \| good	37.458 \| good	0.194 \| good	8.226 \| good	0.199 \| good
2026-08-14T10:00:00.000Z	33 \| good	5.631 \| good	24.66 \| good	33.452 \| good	0.179 \| good	7.537 \| good	0.196 \| good
2026-08-14T11:00:00.000Z	44 \| good	7.548 \| good	33.278 \| good	29.163 \| good	0.169 \| good	6.591 \| good	0.191 \| good
2026-08-14T12:00:00.000Z	44 \| good	8.384 \| good	37.198 \| good	22.412 \| good	0.167 \| good	5.553 \| good	0.183 \| good
2026-08-14T13:00:00.000Z	44 \| good	8.356 \| good	36.813 \| good	24.307 \| good	0.162 \| good	5 \| good	0.18 \| good
2026-08-14T14:00:00.000Z	38 \| good	6.811 \| good	30.178 \| good	26.803 \| good	0.177 \| good	4.447 \| good	0.18 \| good
2026-08-14T15:00:00.000Z	44 \| good	8.291 \| good	36.531 \| good	31.982 \| good	0.221 \| good	3.765 \| good	0.172 \| good
2026-08-14T16:00:00.000Z	52 \| moderate	10.259 \| good	45.711 \| good	39.547 \| good	0.277 \| good	2.936 \| good	0.161 \| good
2026-08-14T17:00:00.000Z	56 \| moderate	11.58 \| good	51.713 \| good	47.053 \| good	0.324 \| good	2.052 \| good	0.152 \| good
2026-08-14T18:00:00.000Z	56 \| moderate	12.058 \| good	54.162 \| good	53.692 \| good	0.331 \| good	1.289 \| good	0.143 \| good
2026-08-14T19:00:00.000Z	58 \| moderate	13.31 \| fine	59.761 \| fine	55.721 \| fine	0.29 \| good	0.881 \| good	0.137 \| good
2026-08-14T20:00:00.000Z	52 \| moderate	10.256 \| good	45.14 \| good	52.333 \| good	0.261 \| good	0.843 \| good	0.135 \| good
2026-08-14T21:00:00.000Z	44 \| good	7.592 \| good	33.162 \| good	45.535 \| good	0.272 \| good	1.133 \| good	0.137 \| good
2026-08-14T22:00:00.000Z	40 \| good	5.963 \| good	26.853 \| good	43.066 \| good	0.286 \| good	1.497 \| good	0.138 \| good
2026-08-14T23:00:00.000Z	39 \| good	3.307 \| good	14.27 \| good	42.234 \| good	0.298 \| good	2.119 \| good	0.141 \| good
2026-08-15T00:00:00.000Z	36 \| good	6.22 \| good	27.493 \| good	38.946 \| good	0.296 \| good	3.012 \| good	0.146 \| good
2026-08-15T01:00:00.000Z	40 \| good	5.354 \| good	23.309 \| good	42.834 \| good	0.305 \| good	4.178 \| good	0.153 \| good
2026-08-15T02:00:00.000Z	36 \| good	5.89 \| good	25.374 \| good	38.717 \| good	0.311 \| good	7.505 \| good	0.174 \| good
2026-08-15T03:00:00.000Z	44 \| good	7.729 \| good	34.08 \| good	40.604 \| good	0.29 \| good	8.192 \| good	0.178 \| good
2026-08-15T04:00:00.000Z	44 \| good	8.212 \| good	35.948 \| good	35.036 \| good	0.27 \| good	9.18 \| good	0.182 \| good
2026-08-15T05:00:00.000Z	38 \| good	7.425 \| good	32.863 \| good	29.06 \| good	0.268 \| good	11.387 \| good	0.193 \| good
2026-08-15T06:00:00.000Z	56 \| moderate	12.226 \| fine	12.427 \| good	21.54 \| good	0.263 \| good	12.052 \| good	0.199 \| good
2026-08-15T07:00:00.000Z	34 \| good	3.581 \| good	15.765 \| good	36.766 \| good	0.261 \| good	12.157 \| good	0.204 \| good
2026-08-15T08:00:00.000Z	34 \| good	4.592 \| good	19.993 \| good	37.491 \| good	0.237 \| good	11.059 \| good	0.197 \| good
2026-08-15T09:00:00.000Z	33 \| good	5.168 \| good	22.419 \| good	36.441 \| good	0.203 \| good	10.184 \| good	0.192 \| good
2026-08-15T10:00:00.000Z	33 \| good	5.503 \| good	23.709 \| good	34.304 \| good	0.182 \| good	9.139 \| good	0.184 \| good
2026-08-15T11:00:00.000Z	44 \| good	8.058 \| good	35.404 \| good	29.068 \| good	0.164 \| good	8.923 \| good	0.181 \| good

Four Square Mile

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Four Square Mile, Colorado

0.28ppm

How accurate is Colorado, USA air quality data?

The air quality data for Colorado, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Four Square Mile, Colorado get updated?

Air quality updates for Four Square Mile, Colorado are available every hour.

What time in the past 24 hours saw the poorest air quality in Four Square Mile, Colorado?

Four Square Mile, Colorado experienced its worst air quality at 08:00:00, 2026-08-12.

When was air quality in Four Square Mile, Colorado the best over the past 24 hours?

The best air quality in Four Square Mile, Colorado was observed at 10:00:00 on 2026-08-13.

What is the air quality in Four Square Mile, Colorado right now?

The air quality in Four Square Mile, Colorado right now is Good, with an AQI of 35.

What pollutant is most frequently found in Four Square Mile, Colorado?

In Four Square Mile, Colorado, O3 is the most frequently found pollutant.

What can I do if the air quality in Four Square Mile, Colorado is poor?

When air quality in Four Square Mile, Colorado is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Four Square Mile, Colorado right now?

Four Square Mile, Colorado currently has a PM_2.5 concentration of 6.278 μg/m³.

What is the current level of PM₁₀ in Four Square Mile, Colorado?

Four Square Mile, Colorado currently has a PM₁₀ concentration of 27.713 μg/m³.

What is the current level of carbon monoxide (CO) in Four Square Mile, Colorado?

The current carbon monoxide (CO) level in Four Square Mile, Colorado is 0.254 ppm.

What is the current level of sulfur dioxide (SO₂) in Four Square Mile, Colorado?

The current sulfur dioxide (SO₂) concentration in Four Square Mile, Colorado is 0.808 ppb.

What is the current level of ozone (O₃) in Four Square Mile, Colorado?

Four Square Mile, Colorado currently has an ozone (O₃) concentration of 38.365 ppm.

What is the current level of nitrogen dioxide (NO₂) in Four Square Mile, Colorado?

The current level of nitrogen dioxide (NO₂) in Four Square Mile, Colorado is 11.911 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-11T13:00:00.000Z	52 \| moderate	10.466 \| good	46.599 \| good	39.342 \| good	1.065 \| good	30.554 \| good	0.504 \| good
2026-08-11T14:00:00.000Z	54 \| moderate	10.578 \| good	46.341 \| good	37.271 \| good	0.985 \| good	30.506 \| good	0.445 \| good
2026-08-11T15:00:00.000Z	54 \| moderate	11.211 \| good	47.85 \| good	34.937 \| good	1.286 \| good	28.662 \| good	0.389 \| good
2026-08-11T16:00:00.000Z	56 \| moderate	11.57 \| good	51.743 \| good	40.053 \| good	1.331 \| good	26.008 \| good	0.328 \| good
2026-08-11T17:00:00.000Z	56 \| moderate	11.661 \| good	52.228 \| good	53.578 \| good	1.006 \| good	12.454 \| good	0.291 \| good
2026-08-11T18:00:00.000Z	67 \| moderate	12.176 \| fine	53.845 \| good	60.132 \| fine	0.781 \| good	10.532 \| good	0.201 \| good
2026-08-11T19:00:00.000Z	80 \| moderate	13.061 \| fine	58.203 \| fine	63.805 \| fine	0.923 \| good	12.087 \| good	0.257 \| good
2026-08-11T20:00:00.000Z	84 \| moderate	13.356 \| fine	59.606 \| fine	65.282 \| fine	0.888 \| good	20.408 \| good	0.408 \| good
2026-08-11T21:00:00.000Z	105 \| sensitive	14.179 \| fine	63.797 \| fine	72.099 \| moderate	0.843 \| good	24.455 \| good	0.43 \| good
2026-08-11T22:00:00.000Z	101 \| sensitive	13.659 \| fine	61.493 \| fine	70.976 \| fine	0.798 \| good	18.685 \| good	0.374 \| good
2026-08-11T23:00:00.000Z	93 \| moderate	12.172 \| fine	53.423 \| good	67.925 \| fine	0.759 \| good	20.18 \| good	0.43 \| good
2026-08-12T00:00:00.000Z	84 \| moderate	11.272 \| good	50.386 \| good	64.689 \| fine	0.632 \| good	15.968 \| good	0.371 \| good
2026-08-12T01:00:00.000Z	77 \| moderate	10.497 \| good	46.807 \| good	62.806 \| fine	0.714 \| good	19.461 \| good	0.405 \| good
2026-08-12T02:00:00.000Z	74 \| moderate	9.985 \| good	44.437 \| good	62.304 \| fine	0.752 \| good	18.924 \| good	0.405 \| good
2026-08-12T03:00:00.000Z	77 \| moderate	23.265 \| fine	101.584 \| fine	49.194 \| good	0.222 \| good	5.606 \| good	0.181 \| good
2026-08-12T04:00:00.000Z	52 \| moderate	9.575 \| good	42.367 \| good	51.201 \| good	0.63 \| good	17.268 \| good	0.468 \| good
2026-08-12T05:00:00.000Z	52 \| moderate	9.758 \| good	43.89 \| good	51.381 \| good	0.63 \| good	19.259 \| good	0.354 \| good
2026-08-12T06:00:00.000Z	52 \| moderate	10.077 \| good	44.816 \| good	48.358 \| good	0.595 \| good	17.676 \| good	0.354 \| good
2026-08-12T07:00:00.000Z	52 \| moderate	10.462 \| good	46.358 \| good	45.553 \| good	0.621 \| good	15.21 \| good	0.291 \| good
2026-08-12T08:00:00.000Z	52 \| moderate	10.343 \| good	45.82 \| good	44.678 \| good	0.678 \| good	14.901 \| good	0.257 \| good
2026-08-12T09:00:00.000Z	52 \| moderate	9.786 \| good	43.346 \| good	44.15 \| good	0.772 \| good	9.672 \| good	0.257 \| good
2026-08-12T10:00:00.000Z	49 \| good	9.131 \| good	39.305 \| good	42.957 \| good	0.689 \| good	9.471 \| good	0.257 \| good
2026-08-12T11:00:00.000Z	49 \| good	8.885 \| good	38.392 \| good	38.959 \| good	0.726 \| good	12.415 \| good	0.2 \| good
2026-08-12T12:00:00.000Z	49 \| good	8.54 \| good	35.995 \| good	37.955 \| good	0.741 \| good	24.093 \| good	0.432 \| good
2026-08-12T13:00:00.000Z	49 \| good	8.719 \| good	38.746 \| good	35.442 \| good	0.72 \| good	30.875 \| good	0.525 \| good
2026-08-12T14:00:00.000Z	49 \| good	9.157 \| good	40.249 \| good	33.76 \| good	0.902 \| good	35.572 \| good	0.796 \| good
2026-08-12T15:00:00.000Z	52 \| moderate	9.75 \| good	44.658 \| good	34.592 \| good	1.091 \| good	30.846 \| good	0.562 \| good
2026-08-12T16:00:00.000Z	52 \| moderate	10.127 \| good	45.068 \| good	45.681 \| good	0.855 \| good	22.583 \| good	0.411 \| good
2026-08-12T17:00:00.000Z	52 \| moderate	10.463 \| good	46.782 \| good	51.033 \| good	1.069 \| good	13.956 \| good	0.316 \| good
2026-08-12T18:00:00.000Z	54 \| moderate	10.86 \| good	48.197 \| good	55.307 \| fine	1.338 \| good	14.35 \| good	0.316 \| good
2026-08-12T19:00:00.000Z	100 \| moderate	11.165 \| good	49.663 \| good	69.562 \| fine	1.3 \| good	19.264 \| good	0.316 \| good
2026-08-12T20:00:00.000Z	101 \| sensitive	11.135 \| good	50.32 \| good	70.583 \| fine	0.996 \| good	16.907 \| good	0.385 \| good
2026-08-12T21:00:00.000Z	87 \| moderate	10.06 \| good	44.876 \| good	65.8 \| fine	0.745 \| good	16.452 \| good	0.374 \| good
2026-08-12T22:00:00.000Z	87 \| moderate	7.609 \| good	33.394 \| good	65.888 \| fine	0.798 \| good	18.385 \| good	0.433 \| good
2026-08-12T23:00:00.000Z	90 \| moderate	7.091 \| good	33.422 \| good	67.428 \| fine	0.714 \| good	13.647 \| good	0.317 \| good
2026-08-13T00:00:00.000Z	84 \| moderate	7.577 \| good	34.9 \| good	64.747 \| fine	0.804 \| good	13.061 \| good	0.316 \| good
2026-08-13T01:00:00.000Z	67 \| moderate	9.433 \| good	42.627 \| good	60.157 \| fine	0.797 \| good	16.949 \| good	0.374 \| good
2026-08-13T02:00:00.000Z	64 \| moderate	9.407 \| good	41.842 \| good	58.602 \| fine	0.836 \| good	15.326 \| good	0.433 \| good
2026-08-13T03:00:00.000Z	48 \| good	7.934 \| good	35.059 \| good	52.202 \| good	0.621 \| good	15.967 \| good	0.377 \| good
2026-08-13T04:00:00.000Z	58 \| moderate	7.08 \| good	31.36 \| good	56.767 \| fine	0.561 \| good	11.115 \| good	0.316 \| good
2026-08-13T05:00:00.000Z	58 \| moderate	6.331 \| good	28.305 \| good	57.326 \| fine	0.613 \| good	8.785 \| good	0.254 \| good
2026-08-13T06:00:00.000Z	48 \| good	5.96 \| good	26.888 \| good	52.174 \| good	0.665 \| good	8.416 \| good	0.257 \| good
2026-08-13T07:00:00.000Z	44 \| good	6.056 \| good	27.574 \| good	48.107 \| good	0.649 \| good	9.525 \| good	0.198 \| good
2026-08-13T08:00:00.000Z	42 \| good	6.097 \| good	27.346 \| good	45.03 \| good	0.65 \| good	10.843 \| good	0.257 \| good
2026-08-13T09:00:00.000Z	41 \| good	6.259 \| good	27.132 \| good	44.183 \| good	0.695 \| good	10.908 \| good	0.257 \| good
2026-08-13T10:00:00.000Z	35 \| good	6.278 \| good	27.713 \| good	38.365 \| good	0.808 \| good	11.911 \| good	0.254 \| good
2026-08-13T11:00:00.000Z	33 \| good	6.475 \| good	28.548 \| good	36.42 \| good	0.734 \| good	16.485 \| good	0.257 \| good
2026-08-13T12:00:00.000Z	33 \| good	6.475 \| good	28.548 \| good	36.42 \| good	0.734 \| good	16.485 \| good	0.257 \| good
2026-08-13T12:00:00.000Z	56 \| moderate	12.018 \| good	53.887 \| good	41.837 \| good	0.197 \| good	9.418 \| good	0.206 \| good
2026-08-13T13:00:00.000Z	56 \| moderate	12.193 \| fine	54.568 \| good	45.092 \| good	0.199 \| good	7.789 \| good	0.2 \| good
2026-08-13T14:00:00.000Z	56 \| moderate	12.26 \| fine	55.283 \| fine	45.551 \| good	0.249 \| good	6.314 \| good	0.194 \| good
2026-08-13T15:00:00.000Z	58 \| moderate	12.99 \| fine	58.774 \| fine	46.601 \| good	0.385 \| good	3.904 \| good	0.167 \| good
2026-08-13T16:00:00.000Z	60 \| moderate	14.349 \| fine	64.713 \| fine	47.271 \| good	0.393 \| good	2.49 \| good	0.158 \| good
2026-08-13T17:00:00.000Z	62 \| moderate	14.873 \| fine	66.676 \| fine	50.254 \| good	0.364 \| good	1.646 \| good	0.154 \| good
2026-08-13T18:00:00.000Z	62 \| moderate	15.489 \| fine	69.144 \| fine	56.139 \| fine	0.314 \| good	1.06 \| good	0.151 \| good
2026-08-13T19:00:00.000Z	66 \| moderate	17.141 \| fine	75.684 \| fine	56.719 \| fine	0.261 \| good	0.79 \| good	0.148 \| good
2026-08-13T20:00:00.000Z	56 \| moderate	12.297 \| fine	55.283 \| fine	54.783 \| good	0.216 \| good	0.785 \| good	0.145 \| good
2026-08-13T21:00:00.000Z	48 \| good	7.78 \| good	34.261 \| good	51.795 \| good	0.183 \| good	0.906 \| good	0.144 \| good
2026-08-13T22:00:00.000Z	50 \| good	7.482 \| good	33.033 \| good	54.452 \| good	0.168 \| good	1.101 \| good	0.144 \| good
2026-08-13T23:00:00.000Z	49 \| good	3.411 \| good	14.704 \| good	52.652 \| good	0.166 \| good	1.633 \| good	0.147 \| good
2026-08-14T00:00:00.000Z	45 \| good	3.33 \| good	14.323 \| good	48.782 \| good	0.153 \| good	2.762 \| good	0.156 \| good
2026-08-14T01:00:00.000Z	46 \| good	1.579 \| good	6.368 \| good	50.433 \| good	0.17 \| good	4.089 \| good	0.166 \| good
2026-08-14T02:00:00.000Z	42 \| good	5.025 \| good	21.686 \| good	44.85 \| good	0.197 \| good	5.245 \| good	0.173 \| good
2026-08-14T03:00:00.000Z	38 \| good	6.983 \| good	30.694 \| good	39.801 \| good	0.203 \| good	7.271 \| good	0.186 \| good
2026-08-14T04:00:00.000Z	41 \| good	7.028 \| good	31.307 \| good	44.177 \| good	0.195 \| good	7.537 \| good	0.188 \| good
2026-08-14T05:00:00.000Z	38 \| good	7.494 \| good	32.757 \| good	41.094 \| good	0.186 \| good	7.15 \| good	0.186 \| good
2026-08-14T06:00:00.000Z	38 \| good	7.484 \| good	33.194 \| good	39.24 \| good	0.195 \| good	7.7 \| good	0.192 \| good
2026-08-14T07:00:00.000Z	44 \| good	7.839 \| good	34.203 \| good	38.638 \| good	0.207 \| good	8.415 \| good	0.2 \| good
2026-08-14T08:00:00.000Z	44 \| good	7.962 \| good	35.004 \| good	38.893 \| good	0.209 \| good	8.811 \| good	0.203 \| good
2026-08-14T09:00:00.000Z	38 \| good	6.503 \| good	29.143 \| good	37.458 \| good	0.194 \| good	8.226 \| good	0.199 \| good
2026-08-14T10:00:00.000Z	33 \| good	5.631 \| good	24.66 \| good	33.452 \| good	0.179 \| good	7.537 \| good	0.196 \| good
2026-08-14T11:00:00.000Z	44 \| good	7.548 \| good	33.278 \| good	29.163 \| good	0.169 \| good	6.591 \| good	0.191 \| good
2026-08-14T12:00:00.000Z	44 \| good	8.384 \| good	37.198 \| good	22.412 \| good	0.167 \| good	5.553 \| good	0.183 \| good
2026-08-14T13:00:00.000Z	44 \| good	8.356 \| good	36.813 \| good	24.307 \| good	0.162 \| good	5 \| good	0.18 \| good
2026-08-14T14:00:00.000Z	38 \| good	6.811 \| good	30.178 \| good	26.803 \| good	0.177 \| good	4.447 \| good	0.18 \| good
2026-08-14T15:00:00.000Z	44 \| good	8.291 \| good	36.531 \| good	31.982 \| good	0.221 \| good	3.765 \| good	0.172 \| good
2026-08-14T16:00:00.000Z	52 \| moderate	10.259 \| good	45.711 \| good	39.547 \| good	0.277 \| good	2.936 \| good	0.161 \| good
2026-08-14T17:00:00.000Z	56 \| moderate	11.58 \| good	51.713 \| good	47.053 \| good	0.324 \| good	2.052 \| good	0.152 \| good
2026-08-14T18:00:00.000Z	56 \| moderate	12.058 \| good	54.162 \| good	53.692 \| good	0.331 \| good	1.289 \| good	0.143 \| good
2026-08-14T19:00:00.000Z	58 \| moderate	13.31 \| fine	59.761 \| fine	55.721 \| fine	0.29 \| good	0.881 \| good	0.137 \| good
2026-08-14T20:00:00.000Z	52 \| moderate	10.256 \| good	45.14 \| good	52.333 \| good	0.261 \| good	0.843 \| good	0.135 \| good
2026-08-14T21:00:00.000Z	44 \| good	7.592 \| good	33.162 \| good	45.535 \| good	0.272 \| good	1.133 \| good	0.137 \| good
2026-08-14T22:00:00.000Z	40 \| good	5.963 \| good	26.853 \| good	43.066 \| good	0.286 \| good	1.497 \| good	0.138 \| good
2026-08-14T23:00:00.000Z	39 \| good	3.307 \| good	14.27 \| good	42.234 \| good	0.298 \| good	2.119 \| good	0.141 \| good
2026-08-15T00:00:00.000Z	36 \| good	6.22 \| good	27.493 \| good	38.946 \| good	0.296 \| good	3.012 \| good	0.146 \| good
2026-08-15T01:00:00.000Z	40 \| good	5.354 \| good	23.309 \| good	42.834 \| good	0.305 \| good	4.178 \| good	0.153 \| good
2026-08-15T02:00:00.000Z	36 \| good	5.89 \| good	25.374 \| good	38.717 \| good	0.311 \| good	7.505 \| good	0.174 \| good
2026-08-15T03:00:00.000Z	44 \| good	7.729 \| good	34.08 \| good	40.604 \| good	0.29 \| good	8.192 \| good	0.178 \| good
2026-08-15T04:00:00.000Z	44 \| good	8.212 \| good	35.948 \| good	35.036 \| good	0.27 \| good	9.18 \| good	0.182 \| good
2026-08-15T05:00:00.000Z	38 \| good	7.425 \| good	32.863 \| good	29.06 \| good	0.268 \| good	11.387 \| good	0.193 \| good
2026-08-15T06:00:00.000Z	56 \| moderate	12.226 \| fine	12.427 \| good	21.54 \| good	0.263 \| good	12.052 \| good	0.199 \| good
2026-08-15T07:00:00.000Z	34 \| good	3.581 \| good	15.765 \| good	36.766 \| good	0.261 \| good	12.157 \| good	0.204 \| good
2026-08-15T08:00:00.000Z	34 \| good	4.592 \| good	19.993 \| good	37.491 \| good	0.237 \| good	11.059 \| good	0.197 \| good
2026-08-15T09:00:00.000Z	33 \| good	5.168 \| good	22.419 \| good	36.441 \| good	0.203 \| good	10.184 \| good	0.192 \| good
2026-08-15T10:00:00.000Z	33 \| good	5.503 \| good	23.709 \| good	34.304 \| good	0.182 \| good	9.139 \| good	0.184 \| good
2026-08-15T11:00:00.000Z	44 \| good	8.058 \| good	35.404 \| good	29.068 \| good	0.164 \| good	8.923 \| good	0.181 \| good

Current air quality index in Four Square Mile, Colorado today

Common air pollutants in Four Square Mile, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Four Square Mile, Colorado air quality forecast and history

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Real-time air quality map: Monitor AQI near Four Square Mile, Colorado

Air quality in nearby cities

Cherry Creek, Colorado

Aurora, Colorado

Greenwood Village, Colorado

Englewood, Colorado

Centennial, Colorado

Denver, Colorado

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Frequently asked questions

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What is the PM2.5 concentration in Four Square Mile, Colorado right now?

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What is the current level of carbon monoxide (CO) in Four Square Mile, Colorado?

What is the current level of sulfur dioxide (SO2) in Four Square Mile, Colorado?

What is the current level of ozone (O3) in Four Square Mile, 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 PM_2.5 concentration in Four Square Mile, Colorado right now?

What is the current level of PM₁₀ in Four Square Mile, Colorado?

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What is the current level of ozone (O₃) in Four Square Mile, Colorado?

What is the current level of nitrogen dioxide (NO₂) in Four Square Mile, Colorado?