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

Four Square Mile, Colorado currently has a PM10 concentration of 32.594 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 0.994 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 57.355 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 13.151 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 8.118 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)

Moderate

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)

8.12 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

32.59 μg/m³

155

255

425

605+

Ozone (O₃)

57.35 ppb

201

201+

Sulfur Dioxide (SO₂)

0.99 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.15 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 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
2026-07-21T22:00:00.000Z	105 \| sensitive	12.734 \| fine	54.071 \| good	71.552 \| moderate	0.76 \| good	4.967 \| good	0.195 \| good
2026-07-21T23:00:00.000Z	100 \| moderate	10.683 \| good	45.039 \| good	70.448 \| fine	0.7 \| good	4.437 \| good	0.195 \| good
2026-07-22T00:00:00.000Z	93 \| moderate	8.63 \| good	38.722 \| good	68.138 \| fine	0.739 \| good	5.815 \| good	0.198 \| good
2026-07-22T01:00:00.000Z	84 \| moderate	6.984 \| good	32.674 \| good	65.177 \| fine	0.843 \| good	6.405 \| good	0.196 \| good
2026-07-22T02:00:00.000Z	71 \| moderate	6.172 \| good	28.095 \| good	60.789 \| fine	0.527 \| good	11.136 \| good	0.313 \| good
2026-07-22T03:00:00.000Z	54 \| moderate	5.941 \| good	26.11 \| good	55.972 \| fine	0.477 \| good	14.457 \| good	0.313 \| good
2026-07-22T04:00:00.000Z	49 \| good	5.78 \| good	25.131 \| good	52.723 \| good	0.554 \| good	17.304 \| good	0.346 \| good
2026-07-22T05:00:00.000Z	47 \| good	6.721 \| good	32.637 \| good	51.24 \| good	0.717 \| good	13.027 \| good	0.313 \| good
2026-07-22T06:00:00.000Z	49 \| good	7.541 \| good	36.047 \| good	52.935 \| good	0.411 \| good	8.161 \| good	0.196 \| good
2026-07-22T07:00:00.000Z	49 \| good	6.694 \| good	31.656 \| good	52.542 \| good	0.559 \| good	8.184 \| good	0.193 \| good
2026-07-22T08:00:00.000Z	46 \| good	6.3 \| good	26.553 \| good	49.937 \| good	0.622 \| good	7.96 \| good	0.193 \| good
2026-07-22T09:00:00.000Z	47 \| good	5.91 \| good	23.315 \| good	50.872 \| good	0.44 \| good	9.506 \| good	0.193 \| good
2026-07-22T10:00:00.000Z	46 \| good	5.661 \| good	24.03 \| good	49.855 \| good	0.494 \| good	11.377 \| good	0.193 \| good
2026-07-22T11:00:00.000Z	44 \| good	5.847 \| good	22.943 \| good	47.066 \| good	0.699 \| good	11.97 \| good	0.251 \| good
2026-07-22T12:00:00.000Z	43 \| good	5.771 \| good	22.461 \| good	45.86 \| good	0.616 \| good	15.935 \| good	0.374 \| good
2026-07-22T13:00:00.000Z	42 \| good	6.195 \| good	24.29 \| good	44.653 \| good	0.577 \| good	21.086 \| good	0.374 \| good
2026-07-22T14:00:00.000Z	43 \| good	6.806 \| good	30.839 \| good	45.657 \| good	0.765 \| good	18.62 \| good	0.467 \| good
2026-07-22T15:00:00.000Z	58 \| moderate	12.79 \| fine	35.122 \| good	47.851 \| good	1.289 \| good	23.742 \| good	0.467 \| good
2026-07-22T16:00:00.000Z	58 \| moderate	13.189 \| fine	42.662 \| good	52.263 \| good	0.783 \| good	19.538 \| good	0.374 \| good
2026-07-22T17:00:00.000Z	51 \| moderate	9.193 \| good	40.254 \| good	54.755 \| good	1.102 \| good	13.173 \| good	0.257 \| good
2026-07-22T18:00:00.000Z	71 \| moderate	9.329 \| good	40.418 \| good	60.513 \| fine	1.063 \| good	9.067 \| good	0.259 \| good
2026-07-22T19:00:00.000Z	87 \| moderate	9.24 \| good	38.097 \| good	65.669 \| fine	0.796 \| good	10.833 \| good	0.259 \| good
2026-07-22T20:00:00.000Z	97 \| moderate	8.871 \| good	38.069 \| good	68.905 \| fine	0.717 \| good	7.542 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	105 \| sensitive	9.162 \| good	38.211 \| good	72.097 \| moderate	0.832 \| good	14.762 \| good	0.352 \| good
2026-07-22T22:00:00.000Z	100 \| moderate	9.512 \| good	39.092 \| good	69.67 \| fine	0.798 \| good	25.073 \| good	0.436 \| good
2026-07-22T23:00:00.000Z	90 \| moderate	8.825 \| good	40.31 \| good	66.59 \| fine	0.676 \| good	12.718 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	84 \| moderate	8.112 \| good	35.896 \| good	65.393 \| fine	0.577 \| good	11.531 \| good	0.259 \| good
2026-07-23T01:00:00.000Z	67 \| moderate	8.941 \| good	36.707 \| good	60.404 \| fine	0.538 \| good	18.566 \| good	0.433 \| good
2026-07-23T02:00:00.000Z	54 \| moderate	8.698 \| good	33.427 \| good	56.41 \| fine	0.553 \| good	21.316 \| good	0.433 \| good
2026-07-23T03:00:00.000Z	47 \| good	6.167 \| good	27.499 \| good	51.327 \| good	0.344 \| good	7.504 \| good	0.163 \| good
2026-07-23T04:00:00.000Z	45 \| good	6.259 \| good	25.563 \| good	48.504 \| good	0.684 \| good	21.691 \| good	0.374 \| good
2026-07-23T05:00:00.000Z	41 \| good	5.417 \| good	20.038 \| good	43.567 \| good	0.617 \| good	18.852 \| good	0.256 \| good
2026-07-23T06:00:00.000Z	41 \| good	4.479 \| good	16.867 \| good	44.2 \| good	0.548 \| good	12.02 \| good	0.197 \| good
2026-07-23T07:00:00.000Z	37 \| good	4.017 \| good	14.82 \| good	39.962 \| good	0.464 \| good	9.164 \| good	0.138 \| good
2026-07-23T08:00:00.000Z	36 \| good	4.019 \| good	14.666 \| good	39.465 \| good	0.569 \| good	11.475 \| good	0.197 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.381 \| good	14.959 \| good	36.214 \| good	0.726 \| good	14.899 \| good	0.197 \| good
2026-07-23T10:00:00.000Z	31 \| good	4.622 \| good	16.345 \| good	33.689 \| good	0.745 \| good	16.79 \| good	0.197 \| good
2026-07-23T11:00:00.000Z	29 \| good	4.642 \| good	17.379 \| good	30.851 \| good	0.849 \| good	19.827 \| good	0.253 \| good
2026-07-23T12:00:00.000Z	27 \| good	4.86 \| good	17.537 \| good	26.166 \| good	0.677 \| good	21.773 \| good	0.232 \| good
2026-07-23T13:00:00.000Z	27 \| good	5.335 \| good	19.765 \| good	27.11 \| good	0.727 \| good	25.427 \| good	0.502 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.03 \| good	24.163 \| good	29.804 \| good	0.726 \| good	23.842 \| good	0.502 \| good
2026-07-23T15:00:00.000Z	38 \| good	6.575 \| good	26.173 \| good	33.656 \| good	0.723 \| good	20.424 \| good	0.411 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.662 \| good	30.25 \| good	36.661 \| good	0.951 \| good	16.917 \| good	0.35 \| good
2026-07-23T17:00:00.000Z	49 \| good	8.64 \| good	33.573 \| good	46.979 \| good	0.975 \| good	17.046 \| good	0.315 \| good
2026-07-23T18:00:00.000Z	49 \| good	8.998 \| good	36.617 \| good	52.606 \| good	0.949 \| good	12.345 \| good	0.349 \| good
2026-07-23T19:00:00.000Z	58 \| moderate	8.54 \| good	33.544 \| good	56.915 \| fine	1.029 \| good	12.178 \| good	0.197 \| good
2026-07-23T20:00:00.000Z	58 \| moderate	8.118 \| good	32.594 \| good	57.355 \| fine	0.994 \| good	13.151 \| good	0.197 \| good
2026-07-23T21:00:00.000Z	74 \| moderate	7.366 \| good	30.135 \| good	62.149 \| fine	0.849 \| good	14.285 \| good	0.258 \| good
2026-07-23T21:00:00.000Z	58 \| moderate	8.118 \| good	32.594 \| good	57.355 \| fine	0.994 \| good	13.151 \| good	0.197 \| good
2026-07-23T22:00:00.000Z	44 \| good	8.437 \| good	36.934 \| good	44.788 \| good	0.226 \| good	1.321 \| good	0.111 \| good
2026-07-23T23:00:00.000Z	44 \| good	8.112 \| good	35.712 \| good	47.267 \| good	0.247 \| good	1.645 \| good	0.114 \| good
2026-07-24T00:00:00.000Z	50 \| good	5.017 \| good	21.345 \| good	53.941 \| good	0.259 \| good	1.967 \| good	0.116 \| good
2026-07-24T01:00:00.000Z	67 \| moderate	6.788 \| good	30.022 \| good	59.593 \| fine	0.282 \| good	2.481 \| good	0.118 \| good
2026-07-24T02:00:00.000Z	50 \| good	8.852 \| good	39.743 \| good	53.644 \| good	0.312 \| good	4.275 \| good	0.129 \| good
2026-07-24T03:00:00.000Z	54 \| moderate	10.586 \| good	46.921 \| good	48.137 \| good	0.357 \| good	9.058 \| good	0.16 \| good
2026-07-24T04:00:00.000Z	58 \| moderate	12.76 \| fine	57.445 \| fine	45.667 \| good	0.389 \| good	11.823 \| good	0.179 \| good
2026-07-24T05:00:00.000Z	58 \| moderate	13.18 \| fine	59.031 \| fine	43.82 \| good	0.388 \| good	14.501 \| good	0.198 \| good
2026-07-24T06:00:00.000Z	56 \| moderate	11.712 \| good	52.308 \| good	42.605 \| good	0.34 \| good	15.219 \| good	0.208 \| good
2026-07-24T07:00:00.000Z	44 \| good	8.071 \| good	35.484 \| good	41.24 \| good	0.283 \| good	13.012 \| good	0.198 \| good
2026-07-24T08:00:00.000Z	37 \| good	4.281 \| good	18.699 \| good	39.593 \| good	0.241 \| good	11.482 \| good	0.189 \| good
2026-07-24T09:00:00.000Z	35 \| good	3.171 \| good	13.067 \| good	37.847 \| good	0.203 \| good	10.256 \| good	0.181 \| good
2026-07-24T10:00:00.000Z	35 \| good	3.957 \| good	17.465 \| good	38.331 \| good	0.171 \| good	9.391 \| good	0.174 \| good
2026-07-24T11:00:00.000Z	31 \| good	4.914 \| good	21.363 \| good	32.518 \| good	0.146 \| good	8.857 \| good	0.168 \| good
2026-07-24T12:00:00.000Z	33 \| good	5.938 \| good	26.114 \| good	26.356 \| good	0.124 \| good	7.877 \| good	0.164 \| good
2026-07-24T13:00:00.000Z	33 \| good	6.355 \| good	28.322 \| good	28.787 \| good	0.117 \| good	5.934 \| good	0.158 \| good
2026-07-24T14:00:00.000Z	33 \| good	6.136 \| good	27.143 \| good	36.224 \| good	0.137 \| good	5.012 \| good	0.158 \| good
2026-07-24T15:00:00.000Z	44 \| good	6.209 \| good	27.454 \| good	47.114 \| good	0.195 \| good	3.64 \| good	0.137 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	6.796 \| good	30 \| good	56.443 \| fine	0.303 \| good	1.842 \| good	0.122 \| good
2026-07-24T17:00:00.000Z	74 \| moderate	6.958 \| good	30.857 \| good	62.497 \| fine	0.281 \| good	0.949 \| good	0.121 \| good
2026-07-24T18:00:00.000Z	90 \| moderate	6.421 \| good	28.796 \| good	67.128 \| fine	0.251 \| good	0.664 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	97 \| moderate	6.639 \| good	29.668 \| good	69.124 \| fine	0.23 \| good	0.56 \| good	0.124 \| good
2026-07-24T20:00:00.000Z	108 \| sensitive	7.09 \| good	31.581 \| good	72.974 \| moderate	0.214 \| good	0.524 \| good	0.124 \| good
2026-07-24T21:00:00.000Z	108 \| sensitive	6.718 \| good	29.758 \| good	73.3 \| moderate	0.204 \| good	0.54 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	6.138 \| good	27.064 \| good	72.566 \| moderate	0.198 \| good	0.597 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	108 \| sensitive	5.624 \| good	24.651 \| good	72.988 \| moderate	0.196 \| good	0.789 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	74 \| moderate	7.424 \| good	32.958 \| good	62.49 \| fine	0.21 \| good	1.431 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	64 \| moderate	3.771 \| good	16.4 \| good	58.563 \| fine	0.24 \| good	1.906 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.152 \| good	27.126 \| good	59.378 \| fine	0.253 \| good	3.713 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	48 \| good	6.425 \| good	28.757 \| good	51.958 \| good	0.285 \| good	6.621 \| good	0.158 \| good
2026-07-25T04:00:00.000Z	44 \| good	6.059 \| good	27.284 \| good	46.743 \| good	0.31 \| good	8.621 \| good	0.172 \| good
2026-07-25T05:00:00.000Z	42 \| good	4.352 \| good	19.248 \| good	45.314 \| good	0.293 \| good	9.822 \| good	0.181 \| good
2026-07-25T06:00:00.000Z	46 \| good	3.865 \| good	17.063 \| good	50.191 \| good	0.261 \| good	10.51 \| good	0.189 \| good
2026-07-25T07:00:00.000Z	47 \| good	4.482 \| good	19 \| good	50.966 \| good	0.225 \| good	10.205 \| good	0.191 \| good
2026-07-25T08:00:00.000Z	44 \| good	4.661 \| good	19.815 \| good	48.172 \| good	0.2 \| good	9.487 \| good	0.187 \| good
2026-07-25T09:00:00.000Z	42 \| good	4.581 \| good	19.609 \| good	45.085 \| good	0.182 \| good	8.814 \| good	0.183 \| good
2026-07-25T10:00:00.000Z	40 \| good	4.968 \| good	21.523 \| good	42.837 \| good	0.174 \| good	8.214 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	38 \| good	7.091 \| good	31.187 \| good	40.565 \| good	0.17 \| good	7.729 \| good	0.172 \| good
2026-07-25T12:00:00.000Z	38 \| good	6.882 \| good	30.543 \| good	36.956 \| good	0.163 \| good	7.023 \| good	0.167 \| good
2026-07-25T13:00:00.000Z	38 \| good	7.481 \| good	32.6 \| good	38.642 \| good	0.152 \| good	5.511 \| good	0.163 \| good
2026-07-25T14:00:00.000Z	43 \| good	7.46 \| good	32.578 \| good	46.283 \| good	0.171 \| good	4.68 \| good	0.162 \| good
2026-07-25T15:00:00.000Z	61 \| moderate	7.106 \| good	31.502 \| good	58.397 \| fine	0.202 \| good	2.885 \| good	0.142 \| good
2026-07-25T16:00:00.000Z	90 \| moderate	6.286 \| good	27.764 \| good	67.095 \| fine	0.244 \| good	1.667 \| good	0.13 \| good
2026-07-25T17:00:00.000Z	90 \| moderate	6.428 \| good	28.546 \| good	67.086 \| fine	0.229 \| good	0.886 \| good	0.123 \| good
2026-07-25T18:00:00.000Z	97 \| moderate	6.206 \| good	27.269 \| good	69.024 \| fine	0.18 \| good	0.547 \| good	0.117 \| good
2026-07-25T19:00:00.000Z	100 \| moderate	5.863 \| good	25.603 \| good	69.929 \| fine	0.147 \| good	0.43 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	97 \| moderate	6.665 \| good	29.933 \| good	69.19 \| fine	0.13 \| good	0.409 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	77 \| moderate	7.51 \| good	33.146 \| good	62.747 \| fine	0.123 \| good	0.455 \| good	0.11 \| good

Four Square Mile

Empower business decisions with accurate air quality data

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

0.20ppm

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 09:00:00, 2026-07-22.

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 01:00:00 on 2026-07-23.

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

The air quality in Four Square Mile, Colorado right now is Moderate, with an AQI of 58.

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 8.118 μg/m³.

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

Four Square Mile, Colorado currently has a PM₁₀ concentration of 32.594 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 0.197 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 0.994 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 57.355 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 13.151 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	105 \| sensitive	12.734 \| fine	54.071 \| good	71.552 \| moderate	0.76 \| good	4.967 \| good	0.195 \| good
2026-07-21T23:00:00.000Z	100 \| moderate	10.683 \| good	45.039 \| good	70.448 \| fine	0.7 \| good	4.437 \| good	0.195 \| good
2026-07-22T00:00:00.000Z	93 \| moderate	8.63 \| good	38.722 \| good	68.138 \| fine	0.739 \| good	5.815 \| good	0.198 \| good
2026-07-22T01:00:00.000Z	84 \| moderate	6.984 \| good	32.674 \| good	65.177 \| fine	0.843 \| good	6.405 \| good	0.196 \| good
2026-07-22T02:00:00.000Z	71 \| moderate	6.172 \| good	28.095 \| good	60.789 \| fine	0.527 \| good	11.136 \| good	0.313 \| good
2026-07-22T03:00:00.000Z	54 \| moderate	5.941 \| good	26.11 \| good	55.972 \| fine	0.477 \| good	14.457 \| good	0.313 \| good
2026-07-22T04:00:00.000Z	49 \| good	5.78 \| good	25.131 \| good	52.723 \| good	0.554 \| good	17.304 \| good	0.346 \| good
2026-07-22T05:00:00.000Z	47 \| good	6.721 \| good	32.637 \| good	51.24 \| good	0.717 \| good	13.027 \| good	0.313 \| good
2026-07-22T06:00:00.000Z	49 \| good	7.541 \| good	36.047 \| good	52.935 \| good	0.411 \| good	8.161 \| good	0.196 \| good
2026-07-22T07:00:00.000Z	49 \| good	6.694 \| good	31.656 \| good	52.542 \| good	0.559 \| good	8.184 \| good	0.193 \| good
2026-07-22T08:00:00.000Z	46 \| good	6.3 \| good	26.553 \| good	49.937 \| good	0.622 \| good	7.96 \| good	0.193 \| good
2026-07-22T09:00:00.000Z	47 \| good	5.91 \| good	23.315 \| good	50.872 \| good	0.44 \| good	9.506 \| good	0.193 \| good
2026-07-22T10:00:00.000Z	46 \| good	5.661 \| good	24.03 \| good	49.855 \| good	0.494 \| good	11.377 \| good	0.193 \| good
2026-07-22T11:00:00.000Z	44 \| good	5.847 \| good	22.943 \| good	47.066 \| good	0.699 \| good	11.97 \| good	0.251 \| good
2026-07-22T12:00:00.000Z	43 \| good	5.771 \| good	22.461 \| good	45.86 \| good	0.616 \| good	15.935 \| good	0.374 \| good
2026-07-22T13:00:00.000Z	42 \| good	6.195 \| good	24.29 \| good	44.653 \| good	0.577 \| good	21.086 \| good	0.374 \| good
2026-07-22T14:00:00.000Z	43 \| good	6.806 \| good	30.839 \| good	45.657 \| good	0.765 \| good	18.62 \| good	0.467 \| good
2026-07-22T15:00:00.000Z	58 \| moderate	12.79 \| fine	35.122 \| good	47.851 \| good	1.289 \| good	23.742 \| good	0.467 \| good
2026-07-22T16:00:00.000Z	58 \| moderate	13.189 \| fine	42.662 \| good	52.263 \| good	0.783 \| good	19.538 \| good	0.374 \| good
2026-07-22T17:00:00.000Z	51 \| moderate	9.193 \| good	40.254 \| good	54.755 \| good	1.102 \| good	13.173 \| good	0.257 \| good
2026-07-22T18:00:00.000Z	71 \| moderate	9.329 \| good	40.418 \| good	60.513 \| fine	1.063 \| good	9.067 \| good	0.259 \| good
2026-07-22T19:00:00.000Z	87 \| moderate	9.24 \| good	38.097 \| good	65.669 \| fine	0.796 \| good	10.833 \| good	0.259 \| good
2026-07-22T20:00:00.000Z	97 \| moderate	8.871 \| good	38.069 \| good	68.905 \| fine	0.717 \| good	7.542 \| good	0.2 \| good
2026-07-22T21:00:00.000Z	105 \| sensitive	9.162 \| good	38.211 \| good	72.097 \| moderate	0.832 \| good	14.762 \| good	0.352 \| good
2026-07-22T22:00:00.000Z	100 \| moderate	9.512 \| good	39.092 \| good	69.67 \| fine	0.798 \| good	25.073 \| good	0.436 \| good
2026-07-22T23:00:00.000Z	90 \| moderate	8.825 \| good	40.31 \| good	66.59 \| fine	0.676 \| good	12.718 \| good	0.2 \| good
2026-07-23T00:00:00.000Z	84 \| moderate	8.112 \| good	35.896 \| good	65.393 \| fine	0.577 \| good	11.531 \| good	0.259 \| good
2026-07-23T01:00:00.000Z	67 \| moderate	8.941 \| good	36.707 \| good	60.404 \| fine	0.538 \| good	18.566 \| good	0.433 \| good
2026-07-23T02:00:00.000Z	54 \| moderate	8.698 \| good	33.427 \| good	56.41 \| fine	0.553 \| good	21.316 \| good	0.433 \| good
2026-07-23T03:00:00.000Z	47 \| good	6.167 \| good	27.499 \| good	51.327 \| good	0.344 \| good	7.504 \| good	0.163 \| good
2026-07-23T04:00:00.000Z	45 \| good	6.259 \| good	25.563 \| good	48.504 \| good	0.684 \| good	21.691 \| good	0.374 \| good
2026-07-23T05:00:00.000Z	41 \| good	5.417 \| good	20.038 \| good	43.567 \| good	0.617 \| good	18.852 \| good	0.256 \| good
2026-07-23T06:00:00.000Z	41 \| good	4.479 \| good	16.867 \| good	44.2 \| good	0.548 \| good	12.02 \| good	0.197 \| good
2026-07-23T07:00:00.000Z	37 \| good	4.017 \| good	14.82 \| good	39.962 \| good	0.464 \| good	9.164 \| good	0.138 \| good
2026-07-23T08:00:00.000Z	36 \| good	4.019 \| good	14.666 \| good	39.465 \| good	0.569 \| good	11.475 \| good	0.197 \| good
2026-07-23T09:00:00.000Z	33 \| good	4.381 \| good	14.959 \| good	36.214 \| good	0.726 \| good	14.899 \| good	0.197 \| good
2026-07-23T10:00:00.000Z	31 \| good	4.622 \| good	16.345 \| good	33.689 \| good	0.745 \| good	16.79 \| good	0.197 \| good
2026-07-23T11:00:00.000Z	29 \| good	4.642 \| good	17.379 \| good	30.851 \| good	0.849 \| good	19.827 \| good	0.253 \| good
2026-07-23T12:00:00.000Z	27 \| good	4.86 \| good	17.537 \| good	26.166 \| good	0.677 \| good	21.773 \| good	0.232 \| good
2026-07-23T13:00:00.000Z	27 \| good	5.335 \| good	19.765 \| good	27.11 \| good	0.727 \| good	25.427 \| good	0.502 \| good
2026-07-23T14:00:00.000Z	33 \| good	6.03 \| good	24.163 \| good	29.804 \| good	0.726 \| good	23.842 \| good	0.502 \| good
2026-07-23T15:00:00.000Z	38 \| good	6.575 \| good	26.173 \| good	33.656 \| good	0.723 \| good	20.424 \| good	0.411 \| good
2026-07-23T16:00:00.000Z	44 \| good	7.662 \| good	30.25 \| good	36.661 \| good	0.951 \| good	16.917 \| good	0.35 \| good
2026-07-23T17:00:00.000Z	49 \| good	8.64 \| good	33.573 \| good	46.979 \| good	0.975 \| good	17.046 \| good	0.315 \| good
2026-07-23T18:00:00.000Z	49 \| good	8.998 \| good	36.617 \| good	52.606 \| good	0.949 \| good	12.345 \| good	0.349 \| good
2026-07-23T19:00:00.000Z	58 \| moderate	8.54 \| good	33.544 \| good	56.915 \| fine	1.029 \| good	12.178 \| good	0.197 \| good
2026-07-23T20:00:00.000Z	58 \| moderate	8.118 \| good	32.594 \| good	57.355 \| fine	0.994 \| good	13.151 \| good	0.197 \| good
2026-07-23T21:00:00.000Z	74 \| moderate	7.366 \| good	30.135 \| good	62.149 \| fine	0.849 \| good	14.285 \| good	0.258 \| good
2026-07-23T21:00:00.000Z	58 \| moderate	8.118 \| good	32.594 \| good	57.355 \| fine	0.994 \| good	13.151 \| good	0.197 \| good
2026-07-23T22:00:00.000Z	44 \| good	8.437 \| good	36.934 \| good	44.788 \| good	0.226 \| good	1.321 \| good	0.111 \| good
2026-07-23T23:00:00.000Z	44 \| good	8.112 \| good	35.712 \| good	47.267 \| good	0.247 \| good	1.645 \| good	0.114 \| good
2026-07-24T00:00:00.000Z	50 \| good	5.017 \| good	21.345 \| good	53.941 \| good	0.259 \| good	1.967 \| good	0.116 \| good
2026-07-24T01:00:00.000Z	67 \| moderate	6.788 \| good	30.022 \| good	59.593 \| fine	0.282 \| good	2.481 \| good	0.118 \| good
2026-07-24T02:00:00.000Z	50 \| good	8.852 \| good	39.743 \| good	53.644 \| good	0.312 \| good	4.275 \| good	0.129 \| good
2026-07-24T03:00:00.000Z	54 \| moderate	10.586 \| good	46.921 \| good	48.137 \| good	0.357 \| good	9.058 \| good	0.16 \| good
2026-07-24T04:00:00.000Z	58 \| moderate	12.76 \| fine	57.445 \| fine	45.667 \| good	0.389 \| good	11.823 \| good	0.179 \| good
2026-07-24T05:00:00.000Z	58 \| moderate	13.18 \| fine	59.031 \| fine	43.82 \| good	0.388 \| good	14.501 \| good	0.198 \| good
2026-07-24T06:00:00.000Z	56 \| moderate	11.712 \| good	52.308 \| good	42.605 \| good	0.34 \| good	15.219 \| good	0.208 \| good
2026-07-24T07:00:00.000Z	44 \| good	8.071 \| good	35.484 \| good	41.24 \| good	0.283 \| good	13.012 \| good	0.198 \| good
2026-07-24T08:00:00.000Z	37 \| good	4.281 \| good	18.699 \| good	39.593 \| good	0.241 \| good	11.482 \| good	0.189 \| good
2026-07-24T09:00:00.000Z	35 \| good	3.171 \| good	13.067 \| good	37.847 \| good	0.203 \| good	10.256 \| good	0.181 \| good
2026-07-24T10:00:00.000Z	35 \| good	3.957 \| good	17.465 \| good	38.331 \| good	0.171 \| good	9.391 \| good	0.174 \| good
2026-07-24T11:00:00.000Z	31 \| good	4.914 \| good	21.363 \| good	32.518 \| good	0.146 \| good	8.857 \| good	0.168 \| good
2026-07-24T12:00:00.000Z	33 \| good	5.938 \| good	26.114 \| good	26.356 \| good	0.124 \| good	7.877 \| good	0.164 \| good
2026-07-24T13:00:00.000Z	33 \| good	6.355 \| good	28.322 \| good	28.787 \| good	0.117 \| good	5.934 \| good	0.158 \| good
2026-07-24T14:00:00.000Z	33 \| good	6.136 \| good	27.143 \| good	36.224 \| good	0.137 \| good	5.012 \| good	0.158 \| good
2026-07-24T15:00:00.000Z	44 \| good	6.209 \| good	27.454 \| good	47.114 \| good	0.195 \| good	3.64 \| good	0.137 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	6.796 \| good	30 \| good	56.443 \| fine	0.303 \| good	1.842 \| good	0.122 \| good
2026-07-24T17:00:00.000Z	74 \| moderate	6.958 \| good	30.857 \| good	62.497 \| fine	0.281 \| good	0.949 \| good	0.121 \| good
2026-07-24T18:00:00.000Z	90 \| moderate	6.421 \| good	28.796 \| good	67.128 \| fine	0.251 \| good	0.664 \| good	0.123 \| good
2026-07-24T19:00:00.000Z	97 \| moderate	6.639 \| good	29.668 \| good	69.124 \| fine	0.23 \| good	0.56 \| good	0.124 \| good
2026-07-24T20:00:00.000Z	108 \| sensitive	7.09 \| good	31.581 \| good	72.974 \| moderate	0.214 \| good	0.524 \| good	0.124 \| good
2026-07-24T21:00:00.000Z	108 \| sensitive	6.718 \| good	29.758 \| good	73.3 \| moderate	0.204 \| good	0.54 \| good	0.123 \| good
2026-07-24T22:00:00.000Z	108 \| sensitive	6.138 \| good	27.064 \| good	72.566 \| moderate	0.198 \| good	0.597 \| good	0.122 \| good
2026-07-24T23:00:00.000Z	108 \| sensitive	5.624 \| good	24.651 \| good	72.988 \| moderate	0.196 \| good	0.789 \| good	0.122 \| good
2026-07-25T00:00:00.000Z	74 \| moderate	7.424 \| good	32.958 \| good	62.49 \| fine	0.21 \| good	1.431 \| good	0.127 \| good
2026-07-25T01:00:00.000Z	64 \| moderate	3.771 \| good	16.4 \| good	58.563 \| fine	0.24 \| good	1.906 \| good	0.129 \| good
2026-07-25T02:00:00.000Z	64 \| moderate	6.152 \| good	27.126 \| good	59.378 \| fine	0.253 \| good	3.713 \| good	0.141 \| good
2026-07-25T03:00:00.000Z	48 \| good	6.425 \| good	28.757 \| good	51.958 \| good	0.285 \| good	6.621 \| good	0.158 \| good
2026-07-25T04:00:00.000Z	44 \| good	6.059 \| good	27.284 \| good	46.743 \| good	0.31 \| good	8.621 \| good	0.172 \| good
2026-07-25T05:00:00.000Z	42 \| good	4.352 \| good	19.248 \| good	45.314 \| good	0.293 \| good	9.822 \| good	0.181 \| good
2026-07-25T06:00:00.000Z	46 \| good	3.865 \| good	17.063 \| good	50.191 \| good	0.261 \| good	10.51 \| good	0.189 \| good
2026-07-25T07:00:00.000Z	47 \| good	4.482 \| good	19 \| good	50.966 \| good	0.225 \| good	10.205 \| good	0.191 \| good
2026-07-25T08:00:00.000Z	44 \| good	4.661 \| good	19.815 \| good	48.172 \| good	0.2 \| good	9.487 \| good	0.187 \| good
2026-07-25T09:00:00.000Z	42 \| good	4.581 \| good	19.609 \| good	45.085 \| good	0.182 \| good	8.814 \| good	0.183 \| good
2026-07-25T10:00:00.000Z	40 \| good	4.968 \| good	21.523 \| good	42.837 \| good	0.174 \| good	8.214 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	38 \| good	7.091 \| good	31.187 \| good	40.565 \| good	0.17 \| good	7.729 \| good	0.172 \| good
2026-07-25T12:00:00.000Z	38 \| good	6.882 \| good	30.543 \| good	36.956 \| good	0.163 \| good	7.023 \| good	0.167 \| good
2026-07-25T13:00:00.000Z	38 \| good	7.481 \| good	32.6 \| good	38.642 \| good	0.152 \| good	5.511 \| good	0.163 \| good
2026-07-25T14:00:00.000Z	43 \| good	7.46 \| good	32.578 \| good	46.283 \| good	0.171 \| good	4.68 \| good	0.162 \| good
2026-07-25T15:00:00.000Z	61 \| moderate	7.106 \| good	31.502 \| good	58.397 \| fine	0.202 \| good	2.885 \| good	0.142 \| good
2026-07-25T16:00:00.000Z	90 \| moderate	6.286 \| good	27.764 \| good	67.095 \| fine	0.244 \| good	1.667 \| good	0.13 \| good
2026-07-25T17:00:00.000Z	90 \| moderate	6.428 \| good	28.546 \| good	67.086 \| fine	0.229 \| good	0.886 \| good	0.123 \| good
2026-07-25T18:00:00.000Z	97 \| moderate	6.206 \| good	27.269 \| good	69.024 \| fine	0.18 \| good	0.547 \| good	0.117 \| good
2026-07-25T19:00:00.000Z	100 \| moderate	5.863 \| good	25.603 \| good	69.929 \| fine	0.147 \| good	0.43 \| good	0.113 \| good
2026-07-25T20:00:00.000Z	97 \| moderate	6.665 \| good	29.933 \| good	69.19 \| fine	0.13 \| good	0.409 \| good	0.111 \| good
2026-07-25T21:00:00.000Z	77 \| moderate	7.51 \| good	33.146 \| good	62.747 \| fine	0.123 \| good	0.455 \| good	0.11 \| 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)

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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

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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?

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

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?

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

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?