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

Four Square Mile, Colorado currently has a PM10 concentration of 70.541 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 0.377 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 28.278 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 12.077 ppb.

Current air quality index in Four Square Mile, Colorado today

Name: Live air pollution levels in Four Square Mile, Colorado today
Creator: Ambee

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)

20.64 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

56.20 μg/m³

155

255

425

605+

Ozone (O₃)

53.33 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.61 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2025-09-05T00:00:00.000Z	84 \| moderate	20.678 \| fine	55.647 \| fine	65.326 \| fine	0.467 \| good	8.618 \| good	0.311 \| good
2025-09-05T01:00:00.000Z	79 \| moderate	23.984 \| fine	59.975 \| fine	61.856 \| fine	0.373 \| good	11.282 \| good	0.354 \| good
2025-09-05T02:00:00.000Z	87 \| moderate	28.027 \| fine	127.719 \| fine	57.699 \| fine	0.497 \| good	7.847 \| good	0.417 \| good
2025-09-05T03:00:00.000Z	102 \| sensitive	36.44 \| moderate	56.438 \| fine	58.098 \| fine	0.399 \| good	6.689 \| good	0.369 \| good
2025-09-05T04:00:00.000Z	107 \| sensitive	38.389 \| moderate	134.335 \| fine	54.588 \| good	0.404 \| good	10.091 \| good	0.284 \| good
2025-09-05T05:00:00.000Z	149 \| sensitive	55.231 \| moderate	247.145 \| moderate	49.64 \| good	0.403 \| good	8.727 \| good	0.248 \| good
2025-09-05T06:00:00.000Z	99 \| moderate	35.039 \| fine	115.392 \| fine	42.068 \| good	0.398 \| good	5.549 \| good	0.248 \| good
2025-09-05T07:00:00.000Z	115 \| sensitive	41.236 \| moderate	173.967 \| moderate	39.317 \| good	0.243 \| good	5.235 \| good	0.208 \| good
2025-09-05T08:00:00.000Z	102 \| sensitive	35.95 \| moderate	83.972 \| fine	36.641 \| good	0.275 \| good	5.326 \| good	0.208 \| good
2025-09-05T09:00:00.000Z	94 \| moderate	32.449 \| fine	115.926 \| fine	38.164 \| good	0.242 \| good	5.346 \| good	0.248 \| good
2025-09-05T10:00:00.000Z	84 \| moderate	27.064 \| fine	64.263 \| fine	33.793 \| good	0.303 \| good	5.423 \| good	0.2 \| good
2025-09-05T11:00:00.000Z	90 \| moderate	30.41 \| fine	76.598 \| fine	31.43 \| good	0.265 \| good	5.611 \| good	0.237 \| good
2025-09-05T12:00:00.000Z	88 \| moderate	28.954 \| fine	98.806 \| fine	31.034 \| good	0.275 \| good	7.213 \| good	0.237 \| good
2025-09-05T13:00:00.000Z	81 \| moderate	25.251 \| fine	81.143 \| fine	31.748 \| good	0.244 \| good	7.202 \| good	0.237 \| good
2025-09-05T14:00:00.000Z	81 \| moderate	24.566 \| fine	64.72 \| fine	32.952 \| good	0.18 \| good	6.639 \| good	0.2 \| good
2025-09-05T15:00:00.000Z	79 \| moderate	24.362 \| fine	58.999 \| fine	35.771 \| good	0.171 \| good	6.517 \| good	0.248 \| good
2025-09-05T16:00:00.000Z	79 \| moderate	24.227 \| fine	60.708 \| fine	34.132 \| good	0.312 \| good	6.198 \| good	0.285 \| good
2025-09-05T17:00:00.000Z	77 \| moderate	22.525 \| fine	66.821 \| fine	35.506 \| good	0.245 \| good	5.328 \| good	0.24 \| good
2025-09-05T18:00:00.000Z	75 \| moderate	22.375 \| fine	68.454 \| fine	33.933 \| good	0.24 \| good	5.669 \| good	0.248 \| good
2025-09-05T19:00:00.000Z	79 \| moderate	23.659 \| fine	67.306 \| fine	38.91 \| good	0.384 \| good	6.366 \| good	0.24 \| good
2025-09-05T20:00:00.000Z	82 \| moderate	26.456 \| fine	97.935 \| fine	36.305 \| good	0.334 \| good	8.288 \| good	0.325 \| good
2025-09-05T21:00:00.000Z	79 \| moderate	23.594 \| fine	73.801 \| fine	38.497 \| good	0.308 \| good	7.776 \| good	0.353 \| good
2025-09-05T22:00:00.000Z	73 \| moderate	20.708 \| fine	66.92 \| fine	33.258 \| good	0.341 \| good	7.396 \| good	0.24 \| good
2025-09-05T23:00:00.000Z	71 \| moderate	20.333 \| fine	60.035 \| fine	32.154 \| good	0.304 \| good	7.295 \| good	0.248 \| good
2025-09-06T00:00:00.000Z	71 \| moderate	20.242 \| fine	58.361 \| fine	42.648 \| good	0.338 \| good	8.803 \| good	0.288 \| good
2025-09-06T01:00:00.000Z	71 \| moderate	19.507 \| fine	53.325 \| good	33.03 \| good	0.34 \| good	9.728 \| good	0.368 \| good
2025-09-06T02:00:00.000Z	71 \| moderate	20.276 \| fine	36.11 \| good	36.804 \| good	0.278 \| good	10.56 \| good	0.408 \| good
2025-09-06T03:00:00.000Z	75 \| moderate	22.222 \| fine	53.173 \| good	38.066 \| good	0.213 \| good	12.427 \| good	0.453 \| good
2025-09-06T04:00:00.000Z	73 \| moderate	20.659 \| fine	66.166 \| fine	33.009 \| good	0.344 \| good	12.783 \| good	0.373 \| good
2025-09-06T05:00:00.000Z	73 \| moderate	21.081 \| fine	76.081 \| fine	29.432 \| good	0.338 \| good	13.32 \| good	0.497 \| good
2025-09-06T06:00:00.000Z	75 \| moderate	22.044 \| fine	74.392 \| fine	22.232 \| good	0.246 \| good	18.275 \| good	0.529 \| good
2025-09-06T07:00:00.000Z	71 \| moderate	19.966 \| fine	43.637 \| good	22.12 \| good	0.343 \| good	17.756 \| good	0.529 \| good
2025-09-06T08:00:00.000Z	73 \| moderate	20.852 \| fine	57.53 \| fine	16.807 \| good	0.377 \| good	18.663 \| good	0.445 \| good
2025-09-06T09:00:00.000Z	73 \| moderate	21.499 \| fine	74.459 \| fine	18.656 \| good	0.27 \| good	14.361 \| good	0.405 \| good
2025-09-06T10:00:00.000Z	73 \| moderate	21.431 \| fine	74.018 \| fine	15.23 \| good	0.241 \| good	14.611 \| good	0.353 \| good
2025-09-06T11:00:00.000Z	75 \| moderate	21.771 \| fine	24.581 \| good	10.79 \| good	0.269 \| good	13.328 \| good	0.277 \| good
2025-09-06T12:00:00.000Z	77 \| moderate	22.712 \| fine	34.418 \| good	19.256 \| good	0.366 \| good	15.789 \| good	0.277 \| good
2025-09-06T13:00:00.000Z	77 \| moderate	23.162 \| fine	31.759 \| good	21.063 \| good	0.409 \| good	16.764 \| good	0.375 \| good
2025-09-06T14:00:00.000Z	77 \| moderate	23.429 \| fine	44.987 \| good	24.345 \| good	0.798 \| good	17.509 \| good	0.375 \| good
2025-09-06T15:00:00.000Z	77 \| moderate	22.683 \| fine	44.971 \| good	19.571 \| good	1.027 \| good	16.327 \| good	0.335 \| good
2025-09-06T16:00:00.000Z	79 \| moderate	24.035 \| fine	67.798 \| fine	27.447 \| good	1.436 \| good	13.482 \| good	0.324 \| good
2025-09-06T17:00:00.000Z	73 \| moderate	20.946 \| fine	51.296 \| good	26.436 \| good	0.72 \| good	9.344 \| good	0.277 \| good
2025-09-06T18:00:00.000Z	79 \| moderate	23.722 \| fine	100.706 \| fine	35.414 \| good	0.373 \| good	7.469 \| good	0.284 \| good
2025-09-06T19:00:00.000Z	75 \| moderate	21.55 \| fine	84.553 \| fine	42.049 \| good	0.369 \| good	6.549 \| good	0.284 \| good
2025-09-06T20:00:00.000Z	73 \| moderate	20.95 \| fine	59.726 \| fine	47.047 \| good	0.302 \| good	6.2 \| good	0.248 \| good
2025-09-06T21:00:00.000Z	73 \| moderate	20.944 \| fine	76.715 \| fine	49.409 \| good	0.303 \| good	7.915 \| good	0.288 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.216 \| fine	65.843 \| fine	50.448 \| good	0.309 \| good	7.308 \| good	0.288 \| good
2025-09-06T23:00:00.000Z	75 \| moderate	21.624 \| fine	51.783 \| good	47.516 \| good	0.296 \| good	8.263 \| good	0.328 \| good
2025-09-06T23:00:00.000Z	73 \| moderate	20.639 \| fine	56.205 \| fine	53.334 \| good	0.259 \| good	9.608 \| good	0.378 \| good
2025-09-06T06:00:00.000Z	64 \| moderate	15.842 \| fine	70.636 \| fine	22.226 \| good	0.692 \| good	17.802 \| good	0.329 \| good
2025-09-06T07:00:00.000Z	64 \| moderate	16.42 \| fine	72.333 \| fine	20.204 \| good	0.648 \| good	16.943 \| good	0.322 \| good
2025-09-06T08:00:00.000Z	67 \| moderate	17.65 \| fine	78.004 \| fine	18.439 \| good	0.605 \| good	16.083 \| good	0.315 \| good
2025-09-06T09:00:00.000Z	64 \| moderate	16.398 \| fine	72.427 \| fine	16.917 \| good	0.561 \| good	15.224 \| good	0.308 \| good
2025-09-06T10:00:00.000Z	62 \| moderate	14.981 \| fine	67.472 \| fine	14.188 \| good	0.538 \| good	14.107 \| good	0.295 \| good
2025-09-06T11:00:00.000Z	64 \| moderate	15.934 \| fine	70.417 \| fine	12.658 \| good	0.514 \| good	12.991 \| good	0.283 \| good
2025-09-06T12:00:00.000Z	62 \| moderate	14.878 \| fine	67.01 \| fine	12.745 \| good	0.49 \| good	11.874 \| good	0.271 \| good
2025-09-06T13:00:00.000Z	64 \| moderate	16.124 \| fine	71.583 \| fine	15.479 \| good	0.618 \| good	10.533 \| good	0.272 \| good
2025-09-06T14:00:00.000Z	64 \| moderate	16.067 \| fine	71.228 \| fine	18.511 \| good	0.746 \| good	9.192 \| good	0.273 \| good
2025-09-06T15:00:00.000Z	60 \| moderate	13.663 \| fine	61.022 \| fine	28.345 \| good	0.874 \| good	7.85 \| good	0.275 \| good
2025-09-06T16:00:00.000Z	58 \| moderate	13.206 \| fine	59.351 \| fine	36.002 \| good	0.984 \| good	6.024 \| good	0.253 \| good
2025-09-06T17:00:00.000Z	60 \| moderate	13.579 \| fine	61.459 \| fine	44.682 \| good	1.093 \| good	4.199 \| good	0.23 \| good
2025-09-06T18:00:00.000Z	58 \| moderate	13.211 \| fine	59.532 \| fine	51.529 \| good	1.203 \| good	2.373 \| good	0.208 \| good
2025-09-06T19:00:00.000Z	56 \| moderate	12.479 \| fine	56.125 \| fine	55.288 \| fine	0.992 \| good	1.909 \| good	0.198 \| good
2025-09-06T20:00:00.000Z	58 \| moderate	12.476 \| fine	55.864 \| fine	57.185 \| fine	0.781 \| good	1.445 \| good	0.187 \| good
2025-09-06T21:00:00.000Z	61 \| moderate	13.113 \| fine	59.418 \| fine	57.921 \| fine	0.571 \| good	0.982 \| good	0.176 \| good
2025-09-06T22:00:00.000Z	61 \| moderate	13.761 \| fine	61.684 \| fine	57.59 \| fine	0.571 \| good	1.399 \| good	0.177 \| good
2025-09-06T23:00:00.000Z	62 \| moderate	15.386 \| fine	68.845 \| fine	51.241 \| good	0.57 \| good	1.816 \| good	0.178 \| good
2025-09-07T00:00:00.000Z	58 \| moderate	12.52 \| fine	56.597 \| fine	46.892 \| good	0.57 \| good	2.233 \| good	0.179 \| good
2025-09-07T01:00:00.000Z	56 \| moderate	11.814 \| good	52.097 \| good	46.768 \| good	0.665 \| good	5.123 \| good	0.203 \| good
2025-09-07T02:00:00.000Z	52 \| moderate	10.198 \| good	45.499 \| good	42.349 \| good	0.76 \| good	8.014 \| good	0.228 \| good
2025-09-07T03:00:00.000Z	58 \| moderate	12.558 \| fine	57.011 \| fine	39.711 \| good	0.855 \| good	10.905 \| good	0.252 \| good
2025-09-07T04:00:00.000Z	62 \| moderate	14.572 \| fine	65.355 \| fine	35.22 \| good	0.83 \| good	11.708 \| good	0.256 \| good
2025-09-07T05:00:00.000Z	66 \| moderate	17.145 \| fine	76.633 \| fine	27.871 \| good	0.805 \| good	12.511 \| good	0.261 \| good
2025-09-07T06:00:00.000Z	71 \| moderate	20.124 \| fine	88.478 \| fine	25.711 \| good	0.78 \| good	13.315 \| good	0.265 \| good
2025-09-07T07:00:00.000Z	71 \| moderate	19.973 \| fine	87.974 \| fine	26.883 \| good	0.679 \| good	12.216 \| good	0.253 \| good
2025-09-07T08:00:00.000Z	69 \| moderate	18.93 \| fine	83.674 \| fine	30.504 \| good	0.578 \| good	11.117 \| good	0.24 \| good
2025-09-07T09:00:00.000Z	60 \| moderate	13.649 \| fine	61.45 \| fine	35.185 \| good	0.477 \| good	10.017 \| good	0.227 \| good
2025-09-07T10:00:00.000Z	54 \| moderate	10.61 \| good	47.245 \| good	36.569 \| good	0.444 \| good	9.067 \| good	0.213 \| good
2025-09-07T11:00:00.000Z	49 \| good	9.218 \| good	41.163 \| good	38.306 \| good	0.412 \| good	8.116 \| good	0.199 \| good
2025-09-07T12:00:00.000Z	54 \| moderate	11.138 \| good	49.138 \| good	25.63 \| good	0.379 \| good	7.166 \| good	0.184 \| good
2025-09-07T13:00:00.000Z	60 \| moderate	13.585 \| fine	60.61 \| fine	19.659 \| good	0.475 \| good	7.31 \| good	0.188 \| good
2025-09-07T14:00:00.000Z	64 \| moderate	15.774 \| fine	69.778 \| fine	21.795 \| good	0.571 \| good	7.455 \| good	0.192 \| good
2025-09-07T15:00:00.000Z	62 \| moderate	14.561 \| fine	65.652 \| fine	29.395 \| good	0.667 \| good	7.6 \| good	0.196 \| good
2025-09-07T16:00:00.000Z	56 \| moderate	12.028 \| good	53.346 \| good	38.553 \| good	0.614 \| good	5.546 \| good	0.173 \| good
2025-09-07T17:00:00.000Z	54 \| moderate	10.59 \| good	47.004 \| good	48.748 \| good	0.561 \| good	3.492 \| good	0.15 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	10.496 \| good	46.251 \| good	56.768 \| fine	0.508 \| good	1.437 \| good	0.127 \| good
2025-09-07T19:00:00.000Z	77 \| moderate	9.779 \| good	43.58 \| good	63.261 \| fine	0.468 \| good	1.331 \| good	0.127 \| good
2025-09-07T20:00:00.000Z	97 \| moderate	9.042 \| good	39.842 \| good	68.565 \| fine	0.429 \| good	1.225 \| good	0.127 \| good
2025-09-07T21:00:00.000Z	84 \| moderate	8.669 \| good	38.189 \| good	65.263 \| fine	0.39 \| good	1.119 \| good	0.127 \| good
2025-09-07T22:00:00.000Z	74 \| moderate	15.745 \| fine	69.801 \| fine	62.09 \| fine	0.467 \| good	1.685 \| good	0.129 \| good
2025-09-07T23:00:00.000Z	79 \| moderate	23.935 \| fine	104.614 \| fine	60.339 \| fine	0.544 \| good	2.251 \| good	0.131 \| good
2025-09-08T00:00:00.000Z	84 \| moderate	8.921 \| good	10.276 \| good	64.583 \| fine	0.618 \| good	2.797 \| good	0.132 \| good
2025-09-08T01:00:00.000Z	90 \| moderate	30.41 \| fine	131.8 \| fine	42.789 \| good	0.685 \| good	9.104 \| good	0.182 \| good
2025-09-08T02:00:00.000Z	79 \| moderate	23.523 \| fine	103.219 \| fine	32.876 \| good	0.749 \| good	15.392 \| good	0.231 \| good
2025-09-08T03:00:00.000Z	69 \| moderate	19.432 \| fine	85.404 \| fine	34.464 \| good	0.813 \| good	21.68 \| good	0.281 \| good
2025-09-08T04:00:00.000Z	62 \| moderate	15.184 \| fine	67.279 \| fine	36.601 \| good	0.758 \| good	20.925 \| good	0.279 \| good
2025-09-08T05:00:00.000Z	60 \| moderate	13.596 \| fine	61.399 \| fine	36.091 \| good	0.703 \| good	20.171 \| good	0.278 \| good

Four Square Mile

Empower business decisions with accurate air quality data

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

0.47ppm

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 05:00:00, 2025-09-05.

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 04:00:00 on 2025-09-06.

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 69.

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

In Four Square Mile, Colorado, PM2.5 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 19.155 μg/m³.

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

Four Square Mile, Colorado currently has a PM₁₀ concentration of 70.541 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 0.415 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 0.377 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 28.278 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 12.077 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-05T00:00:00.000Z	84 \| moderate	20.678 \| fine	55.647 \| fine	65.326 \| fine	0.467 \| good	8.618 \| good	0.311 \| good
2025-09-05T01:00:00.000Z	79 \| moderate	23.984 \| fine	59.975 \| fine	61.856 \| fine	0.373 \| good	11.282 \| good	0.354 \| good
2025-09-05T02:00:00.000Z	87 \| moderate	28.027 \| fine	127.719 \| fine	57.699 \| fine	0.497 \| good	7.847 \| good	0.417 \| good
2025-09-05T03:00:00.000Z	102 \| sensitive	36.44 \| moderate	56.438 \| fine	58.098 \| fine	0.399 \| good	6.689 \| good	0.369 \| good
2025-09-05T04:00:00.000Z	107 \| sensitive	38.389 \| moderate	134.335 \| fine	54.588 \| good	0.404 \| good	10.091 \| good	0.284 \| good
2025-09-05T05:00:00.000Z	149 \| sensitive	55.231 \| moderate	247.145 \| moderate	49.64 \| good	0.403 \| good	8.727 \| good	0.248 \| good
2025-09-05T06:00:00.000Z	99 \| moderate	35.039 \| fine	115.392 \| fine	42.068 \| good	0.398 \| good	5.549 \| good	0.248 \| good
2025-09-05T07:00:00.000Z	115 \| sensitive	41.236 \| moderate	173.967 \| moderate	39.317 \| good	0.243 \| good	5.235 \| good	0.208 \| good
2025-09-05T08:00:00.000Z	102 \| sensitive	35.95 \| moderate	83.972 \| fine	36.641 \| good	0.275 \| good	5.326 \| good	0.208 \| good
2025-09-05T09:00:00.000Z	94 \| moderate	32.449 \| fine	115.926 \| fine	38.164 \| good	0.242 \| good	5.346 \| good	0.248 \| good
2025-09-05T10:00:00.000Z	84 \| moderate	27.064 \| fine	64.263 \| fine	33.793 \| good	0.303 \| good	5.423 \| good	0.2 \| good
2025-09-05T11:00:00.000Z	90 \| moderate	30.41 \| fine	76.598 \| fine	31.43 \| good	0.265 \| good	5.611 \| good	0.237 \| good
2025-09-05T12:00:00.000Z	88 \| moderate	28.954 \| fine	98.806 \| fine	31.034 \| good	0.275 \| good	7.213 \| good	0.237 \| good
2025-09-05T13:00:00.000Z	81 \| moderate	25.251 \| fine	81.143 \| fine	31.748 \| good	0.244 \| good	7.202 \| good	0.237 \| good
2025-09-05T14:00:00.000Z	81 \| moderate	24.566 \| fine	64.72 \| fine	32.952 \| good	0.18 \| good	6.639 \| good	0.2 \| good
2025-09-05T15:00:00.000Z	79 \| moderate	24.362 \| fine	58.999 \| fine	35.771 \| good	0.171 \| good	6.517 \| good	0.248 \| good
2025-09-05T16:00:00.000Z	79 \| moderate	24.227 \| fine	60.708 \| fine	34.132 \| good	0.312 \| good	6.198 \| good	0.285 \| good
2025-09-05T17:00:00.000Z	77 \| moderate	22.525 \| fine	66.821 \| fine	35.506 \| good	0.245 \| good	5.328 \| good	0.24 \| good
2025-09-05T18:00:00.000Z	75 \| moderate	22.375 \| fine	68.454 \| fine	33.933 \| good	0.24 \| good	5.669 \| good	0.248 \| good
2025-09-05T19:00:00.000Z	79 \| moderate	23.659 \| fine	67.306 \| fine	38.91 \| good	0.384 \| good	6.366 \| good	0.24 \| good
2025-09-05T20:00:00.000Z	82 \| moderate	26.456 \| fine	97.935 \| fine	36.305 \| good	0.334 \| good	8.288 \| good	0.325 \| good
2025-09-05T21:00:00.000Z	79 \| moderate	23.594 \| fine	73.801 \| fine	38.497 \| good	0.308 \| good	7.776 \| good	0.353 \| good
2025-09-05T22:00:00.000Z	73 \| moderate	20.708 \| fine	66.92 \| fine	33.258 \| good	0.341 \| good	7.396 \| good	0.24 \| good
2025-09-05T23:00:00.000Z	71 \| moderate	20.333 \| fine	60.035 \| fine	32.154 \| good	0.304 \| good	7.295 \| good	0.248 \| good
2025-09-06T00:00:00.000Z	71 \| moderate	20.242 \| fine	58.361 \| fine	42.648 \| good	0.338 \| good	8.803 \| good	0.288 \| good
2025-09-06T01:00:00.000Z	71 \| moderate	19.507 \| fine	53.325 \| good	33.03 \| good	0.34 \| good	9.728 \| good	0.368 \| good
2025-09-06T02:00:00.000Z	71 \| moderate	20.276 \| fine	36.11 \| good	36.804 \| good	0.278 \| good	10.56 \| good	0.408 \| good
2025-09-06T03:00:00.000Z	75 \| moderate	22.222 \| fine	53.173 \| good	38.066 \| good	0.213 \| good	12.427 \| good	0.453 \| good
2025-09-06T04:00:00.000Z	73 \| moderate	20.659 \| fine	66.166 \| fine	33.009 \| good	0.344 \| good	12.783 \| good	0.373 \| good
2025-09-06T05:00:00.000Z	73 \| moderate	21.081 \| fine	76.081 \| fine	29.432 \| good	0.338 \| good	13.32 \| good	0.497 \| good
2025-09-06T06:00:00.000Z	75 \| moderate	22.044 \| fine	74.392 \| fine	22.232 \| good	0.246 \| good	18.275 \| good	0.529 \| good
2025-09-06T07:00:00.000Z	71 \| moderate	19.966 \| fine	43.637 \| good	22.12 \| good	0.343 \| good	17.756 \| good	0.529 \| good
2025-09-06T08:00:00.000Z	73 \| moderate	20.852 \| fine	57.53 \| fine	16.807 \| good	0.377 \| good	18.663 \| good	0.445 \| good
2025-09-06T09:00:00.000Z	73 \| moderate	21.499 \| fine	74.459 \| fine	18.656 \| good	0.27 \| good	14.361 \| good	0.405 \| good
2025-09-06T10:00:00.000Z	73 \| moderate	21.431 \| fine	74.018 \| fine	15.23 \| good	0.241 \| good	14.611 \| good	0.353 \| good
2025-09-06T11:00:00.000Z	75 \| moderate	21.771 \| fine	24.581 \| good	10.79 \| good	0.269 \| good	13.328 \| good	0.277 \| good
2025-09-06T12:00:00.000Z	77 \| moderate	22.712 \| fine	34.418 \| good	19.256 \| good	0.366 \| good	15.789 \| good	0.277 \| good
2025-09-06T13:00:00.000Z	77 \| moderate	23.162 \| fine	31.759 \| good	21.063 \| good	0.409 \| good	16.764 \| good	0.375 \| good
2025-09-06T14:00:00.000Z	77 \| moderate	23.429 \| fine	44.987 \| good	24.345 \| good	0.798 \| good	17.509 \| good	0.375 \| good
2025-09-06T15:00:00.000Z	77 \| moderate	22.683 \| fine	44.971 \| good	19.571 \| good	1.027 \| good	16.327 \| good	0.335 \| good
2025-09-06T16:00:00.000Z	79 \| moderate	24.035 \| fine	67.798 \| fine	27.447 \| good	1.436 \| good	13.482 \| good	0.324 \| good
2025-09-06T17:00:00.000Z	73 \| moderate	20.946 \| fine	51.296 \| good	26.436 \| good	0.72 \| good	9.344 \| good	0.277 \| good
2025-09-06T18:00:00.000Z	79 \| moderate	23.722 \| fine	100.706 \| fine	35.414 \| good	0.373 \| good	7.469 \| good	0.284 \| good
2025-09-06T19:00:00.000Z	75 \| moderate	21.55 \| fine	84.553 \| fine	42.049 \| good	0.369 \| good	6.549 \| good	0.284 \| good
2025-09-06T20:00:00.000Z	73 \| moderate	20.95 \| fine	59.726 \| fine	47.047 \| good	0.302 \| good	6.2 \| good	0.248 \| good
2025-09-06T21:00:00.000Z	73 \| moderate	20.944 \| fine	76.715 \| fine	49.409 \| good	0.303 \| good	7.915 \| good	0.288 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.216 \| fine	65.843 \| fine	50.448 \| good	0.309 \| good	7.308 \| good	0.288 \| good
2025-09-06T23:00:00.000Z	75 \| moderate	21.624 \| fine	51.783 \| good	47.516 \| good	0.296 \| good	8.263 \| good	0.328 \| good
2025-09-06T23:00:00.000Z	73 \| moderate	20.639 \| fine	56.205 \| fine	53.334 \| good	0.259 \| good	9.608 \| good	0.378 \| good
2025-09-06T06:00:00.000Z	64 \| moderate	15.842 \| fine	70.636 \| fine	22.226 \| good	0.692 \| good	17.802 \| good	0.329 \| good
2025-09-06T07:00:00.000Z	64 \| moderate	16.42 \| fine	72.333 \| fine	20.204 \| good	0.648 \| good	16.943 \| good	0.322 \| good
2025-09-06T08:00:00.000Z	67 \| moderate	17.65 \| fine	78.004 \| fine	18.439 \| good	0.605 \| good	16.083 \| good	0.315 \| good
2025-09-06T09:00:00.000Z	64 \| moderate	16.398 \| fine	72.427 \| fine	16.917 \| good	0.561 \| good	15.224 \| good	0.308 \| good
2025-09-06T10:00:00.000Z	62 \| moderate	14.981 \| fine	67.472 \| fine	14.188 \| good	0.538 \| good	14.107 \| good	0.295 \| good
2025-09-06T11:00:00.000Z	64 \| moderate	15.934 \| fine	70.417 \| fine	12.658 \| good	0.514 \| good	12.991 \| good	0.283 \| good
2025-09-06T12:00:00.000Z	62 \| moderate	14.878 \| fine	67.01 \| fine	12.745 \| good	0.49 \| good	11.874 \| good	0.271 \| good
2025-09-06T13:00:00.000Z	64 \| moderate	16.124 \| fine	71.583 \| fine	15.479 \| good	0.618 \| good	10.533 \| good	0.272 \| good
2025-09-06T14:00:00.000Z	64 \| moderate	16.067 \| fine	71.228 \| fine	18.511 \| good	0.746 \| good	9.192 \| good	0.273 \| good
2025-09-06T15:00:00.000Z	60 \| moderate	13.663 \| fine	61.022 \| fine	28.345 \| good	0.874 \| good	7.85 \| good	0.275 \| good
2025-09-06T16:00:00.000Z	58 \| moderate	13.206 \| fine	59.351 \| fine	36.002 \| good	0.984 \| good	6.024 \| good	0.253 \| good
2025-09-06T17:00:00.000Z	60 \| moderate	13.579 \| fine	61.459 \| fine	44.682 \| good	1.093 \| good	4.199 \| good	0.23 \| good
2025-09-06T18:00:00.000Z	58 \| moderate	13.211 \| fine	59.532 \| fine	51.529 \| good	1.203 \| good	2.373 \| good	0.208 \| good
2025-09-06T19:00:00.000Z	56 \| moderate	12.479 \| fine	56.125 \| fine	55.288 \| fine	0.992 \| good	1.909 \| good	0.198 \| good
2025-09-06T20:00:00.000Z	58 \| moderate	12.476 \| fine	55.864 \| fine	57.185 \| fine	0.781 \| good	1.445 \| good	0.187 \| good
2025-09-06T21:00:00.000Z	61 \| moderate	13.113 \| fine	59.418 \| fine	57.921 \| fine	0.571 \| good	0.982 \| good	0.176 \| good
2025-09-06T22:00:00.000Z	61 \| moderate	13.761 \| fine	61.684 \| fine	57.59 \| fine	0.571 \| good	1.399 \| good	0.177 \| good
2025-09-06T23:00:00.000Z	62 \| moderate	15.386 \| fine	68.845 \| fine	51.241 \| good	0.57 \| good	1.816 \| good	0.178 \| good
2025-09-07T00:00:00.000Z	58 \| moderate	12.52 \| fine	56.597 \| fine	46.892 \| good	0.57 \| good	2.233 \| good	0.179 \| good
2025-09-07T01:00:00.000Z	56 \| moderate	11.814 \| good	52.097 \| good	46.768 \| good	0.665 \| good	5.123 \| good	0.203 \| good
2025-09-07T02:00:00.000Z	52 \| moderate	10.198 \| good	45.499 \| good	42.349 \| good	0.76 \| good	8.014 \| good	0.228 \| good
2025-09-07T03:00:00.000Z	58 \| moderate	12.558 \| fine	57.011 \| fine	39.711 \| good	0.855 \| good	10.905 \| good	0.252 \| good
2025-09-07T04:00:00.000Z	62 \| moderate	14.572 \| fine	65.355 \| fine	35.22 \| good	0.83 \| good	11.708 \| good	0.256 \| good
2025-09-07T05:00:00.000Z	66 \| moderate	17.145 \| fine	76.633 \| fine	27.871 \| good	0.805 \| good	12.511 \| good	0.261 \| good
2025-09-07T06:00:00.000Z	71 \| moderate	20.124 \| fine	88.478 \| fine	25.711 \| good	0.78 \| good	13.315 \| good	0.265 \| good
2025-09-07T07:00:00.000Z	71 \| moderate	19.973 \| fine	87.974 \| fine	26.883 \| good	0.679 \| good	12.216 \| good	0.253 \| good
2025-09-07T08:00:00.000Z	69 \| moderate	18.93 \| fine	83.674 \| fine	30.504 \| good	0.578 \| good	11.117 \| good	0.24 \| good
2025-09-07T09:00:00.000Z	60 \| moderate	13.649 \| fine	61.45 \| fine	35.185 \| good	0.477 \| good	10.017 \| good	0.227 \| good
2025-09-07T10:00:00.000Z	54 \| moderate	10.61 \| good	47.245 \| good	36.569 \| good	0.444 \| good	9.067 \| good	0.213 \| good
2025-09-07T11:00:00.000Z	49 \| good	9.218 \| good	41.163 \| good	38.306 \| good	0.412 \| good	8.116 \| good	0.199 \| good
2025-09-07T12:00:00.000Z	54 \| moderate	11.138 \| good	49.138 \| good	25.63 \| good	0.379 \| good	7.166 \| good	0.184 \| good
2025-09-07T13:00:00.000Z	60 \| moderate	13.585 \| fine	60.61 \| fine	19.659 \| good	0.475 \| good	7.31 \| good	0.188 \| good
2025-09-07T14:00:00.000Z	64 \| moderate	15.774 \| fine	69.778 \| fine	21.795 \| good	0.571 \| good	7.455 \| good	0.192 \| good
2025-09-07T15:00:00.000Z	62 \| moderate	14.561 \| fine	65.652 \| fine	29.395 \| good	0.667 \| good	7.6 \| good	0.196 \| good
2025-09-07T16:00:00.000Z	56 \| moderate	12.028 \| good	53.346 \| good	38.553 \| good	0.614 \| good	5.546 \| good	0.173 \| good
2025-09-07T17:00:00.000Z	54 \| moderate	10.59 \| good	47.004 \| good	48.748 \| good	0.561 \| good	3.492 \| good	0.15 \| good
2025-09-07T18:00:00.000Z	58 \| moderate	10.496 \| good	46.251 \| good	56.768 \| fine	0.508 \| good	1.437 \| good	0.127 \| good
2025-09-07T19:00:00.000Z	77 \| moderate	9.779 \| good	43.58 \| good	63.261 \| fine	0.468 \| good	1.331 \| good	0.127 \| good
2025-09-07T20:00:00.000Z	97 \| moderate	9.042 \| good	39.842 \| good	68.565 \| fine	0.429 \| good	1.225 \| good	0.127 \| good
2025-09-07T21:00:00.000Z	84 \| moderate	8.669 \| good	38.189 \| good	65.263 \| fine	0.39 \| good	1.119 \| good	0.127 \| good
2025-09-07T22:00:00.000Z	74 \| moderate	15.745 \| fine	69.801 \| fine	62.09 \| fine	0.467 \| good	1.685 \| good	0.129 \| good
2025-09-07T23:00:00.000Z	79 \| moderate	23.935 \| fine	104.614 \| fine	60.339 \| fine	0.544 \| good	2.251 \| good	0.131 \| good
2025-09-08T00:00:00.000Z	84 \| moderate	8.921 \| good	10.276 \| good	64.583 \| fine	0.618 \| good	2.797 \| good	0.132 \| good
2025-09-08T01:00:00.000Z	90 \| moderate	30.41 \| fine	131.8 \| fine	42.789 \| good	0.685 \| good	9.104 \| good	0.182 \| good
2025-09-08T02:00:00.000Z	79 \| moderate	23.523 \| fine	103.219 \| fine	32.876 \| good	0.749 \| good	15.392 \| good	0.231 \| good
2025-09-08T03:00:00.000Z	69 \| moderate	19.432 \| fine	85.404 \| fine	34.464 \| good	0.813 \| good	21.68 \| good	0.281 \| good
2025-09-08T04:00:00.000Z	62 \| moderate	15.184 \| fine	67.279 \| fine	36.601 \| good	0.758 \| good	20.925 \| good	0.279 \| good
2025-09-08T05:00:00.000Z	60 \| moderate	13.596 \| fine	61.399 \| fine	36.091 \| good	0.703 \| good	20.171 \| good	0.278 \| 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

Empower business decisions with accurate air quality data

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

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

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

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

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

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

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

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?

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?