What is the PM10 level in Danbury, Connecticut at the moment?

The PM10 concentration in Danbury, Connecticut is 13.02 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Danbury, Connecticut at the moment?

Currently, Danbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.281 ppb.

What is the ozone (O3) level in Danbury, Connecticut at the moment?

The current ozone (O3) level in Danbury, Connecticut at the moment is 46.974 ppm.

What is the nitrogen dioxide (NO2) level in Danbury, Connecticut at the moment?

Nitrogen dioxide (NO2) level in Danbury, Connecticut at the moment is 3.58 ppb.

Live air quality index in Danbury, Connecticut today

Q: What is the PM2.5 level in Danbury, Connecticut at the moment?

PM2.5 levels in Danbury, Connecticut are currently 6.693 μg/m3.

Stay updated with real-time air quality in Danbury, Connecticut 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

Danbury, Connecticut

Last updated: ... (Local time)

Major air pollutants in Danbury, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.69 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.02 μg/m³

155

255

425

605+

Ozone (O₃)

46.97 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.58 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Danbury, Connecticut

Scroll To Air Quality Map

Track live Danbury, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-27T23:00:00.000Z	41 \| good	2.4 \| good	5.031 \| good	43.969 \| good	0.193 \| good	4.817 \| good	0.2 \| good
2026-03-28T00:00:00.000Z	41 \| good	2.601 \| good	5.016 \| good	43.968 \| good	0.117 \| good	6.175 \| good	0.199 \| good
2026-03-28T01:00:00.000Z	38 \| good	3.1 \| good	5.028 \| good	40.975 \| good	0.146 \| good	9.033 \| good	0.199 \| good
2026-03-28T02:00:00.000Z	34 \| good	3.599 \| good	7.024 \| good	36.99 \| good	0.133 \| good	9.533 \| good	0.217 \| good
2026-03-28T03:00:00.000Z	27 \| good	4.694 \| good	9.02 \| good	28.988 \| good	0.127 \| good	13.118 \| good	0.271 \| good
2026-03-28T04:00:00.000Z	33 \| good	6.289 \| good	12.004 \| good	28.993 \| good	0.169 \| good	14.109 \| good	0.24 \| good
2026-03-28T05:00:00.000Z	33 \| good	5.593 \| good	10.008 \| good	20.021 \| good	0.132 \| good	13.723 \| good	0.24 \| good
2026-03-28T06:00:00.000Z	33 \| good	5.592 \| good	10.03 \| good	27.995 \| good	0.162 \| good	10.217 \| good	0.219 \| good
2026-03-28T07:00:00.000Z	28 \| good	4.596 \| good	9.025 \| good	29.996 \| good	0.155 \| good	8.597 \| good	0.183 \| good
2026-03-28T08:00:00.000Z	32 \| good	3.899 \| good	7.023 \| good	34.975 \| good	0.153 \| good	6.55 \| good	0.185 \| good
2026-03-28T09:00:00.000Z	32 \| good	3.899 \| good	7.03 \| good	34.974 \| good	0.152 \| good	3.907 \| good	0.185 \| good
2026-03-28T10:00:00.000Z	36 \| good	4 \| good	8.029 \| good	38.953 \| good	0.125 \| good	5.51 \| good	0.17 \| good
2026-03-28T11:00:00.000Z	34 \| good	4 \| good	8.019 \| good	36.977 \| good	0.151 \| good	4.75 \| good	0.161 \| good
2026-03-28T12:00:00.000Z	34 \| good	4.102 \| good	9.022 \| good	36.978 \| good	0.187 \| good	4.618 \| good	0.194 \| good
2026-03-28T13:00:00.000Z	34 \| good	4.102 \| good	9.039 \| good	36.991 \| good	0.208 \| good	3.515 \| good	0.219 \| good
2026-03-28T14:00:00.000Z	32 \| good	4.3 \| good	8.039 \| good	35.003 \| good	0.187 \| good	2.827 \| good	0.201 \| good
2026-03-28T15:00:00.000Z	33 \| good	4.099 \| good	8.036 \| good	36.006 \| good	0.156 \| good	2.06 \| good	0.184 \| good
2026-03-28T16:00:00.000Z	37 \| good	4.1 \| good	8.035 \| good	39.98 \| good	0.187 \| good	1.787 \| good	0.161 \| good
2026-03-28T17:00:00.000Z	42 \| good	4.099 \| good	8.05 \| good	44.964 \| good	0.208 \| good	1.682 \| good	0.161 \| good
2026-03-28T18:00:00.000Z	41 \| good	4.099 \| good	8.036 \| good	43.974 \| good	0.153 \| good	1.521 \| good	0.176 \| good
2026-03-28T19:00:00.000Z	36 \| good	4.097 \| good	8.006 \| good	39.003 \| good	0.153 \| good	1.694 \| good	0.176 \| good
2026-03-28T20:00:00.000Z	36 \| good	3.697 \| good	7.018 \| good	39.005 \| good	0.144 \| good	1.765 \| good	0.176 \| good
2026-03-28T21:00:00.000Z	37 \| good	3.401 \| good	7.016 \| good	39.995 \| good	0.136 \| good	1.989 \| good	0.2 \| good
2026-03-28T22:00:00.000Z	42 \| good	3.2 \| good	7.004 \| good	44.963 \| good	0.122 \| good	2.213 \| good	0.184 \| good
2026-03-28T23:00:00.000Z	42 \| good	3.202 \| good	7.032 \| good	44.963 \| good	0.127 \| good	2.654 \| good	0.176 \| good
2026-03-29T00:00:00.000Z	37 \| good	3.402 \| good	7.03 \| good	39.994 \| good	0.153 \| good	3.348 \| good	0.176 \| good
2026-03-29T01:00:00.000Z	37 \| good	3.504 \| good	7.038 \| good	39.986 \| good	0.2 \| good	6.606 \| good	0.217 \| good
2026-03-29T02:00:00.000Z	37 \| good	3.701 \| good	7.03 \| good	39.985 \| good	0.18 \| good	6.768 \| good	0.234 \| good
2026-03-29T03:00:00.000Z	38 \| good	6.689 \| good	29.697 \| good	15.225 \| good	0.783 \| good	7.254 \| good	0.226 \| good
2026-03-29T04:00:00.000Z	34 \| good	5.694 \| good	11.025 \| good	36.985 \| good	0.166 \| good	15.941 \| good	0.255 \| good
2026-03-29T05:00:00.000Z	38 \| good	7.292 \| good	13.012 \| good	17.054 \| good	0.252 \| good	22.464 \| good	0.231 \| good
2026-03-29T06:00:00.000Z	38 \| good	7.29 \| good	12.996 \| good	17.051 \| good	0.252 \| good	22.732 \| good	0.231 \| good
2026-03-29T07:00:00.000Z	49 \| good	8.686 \| good	14.992 \| good	11.068 \| good	0.425 \| good	19.938 \| good	0.261 \| good
2026-03-29T08:00:00.000Z	49 \| good	8.889 \| good	15.005 \| good	11.053 \| good	0.297 \| good	28.821 \| good	0.268 \| good
2026-03-29T09:00:00.000Z	44 \| good	7.9 \| good	13.028 \| good	11.044 \| good	0.483 \| good	30.437 \| good	0.291 \| good
2026-03-29T10:00:00.000Z	44 \| good	8.294 \| good	13.02 \| good	17.007 \| good	0.4 \| good	25.804 \| good	0.276 \| good
2026-03-29T11:00:00.000Z	56 \| moderate	12.372 \| fine	17.985 \| good	13.01 \| good	0.56 \| good	26.714 \| good	0.331 \| good
2026-03-29T12:00:00.000Z	54 \| moderate	10.678 \| good	16.027 \| good	11.011 \| good	0.584 \| good	26.144 \| good	0.355 \| good
2026-03-29T13:00:00.000Z	54 \| moderate	10.681 \| good	16.037 \| good	11.011 \| good	0.582 \| good	16.158 \| good	0.39 \| good
2026-03-29T14:00:00.000Z	38 \| good	7.39 \| good	12.032 \| good	15.007 \| good	0.42 \| good	8.81 \| good	0.224 \| good
2026-03-29T15:00:00.000Z	33 \| good	5.797 \| good	10.044 \| good	24 \| good	0.441 \| good	4.954 \| good	0.206 \| good
2026-03-29T16:00:00.000Z	27 \| good	5.3 \| good	10.045 \| good	26.009 \| good	0.417 \| good	3.374 \| good	0.216 \| good
2026-03-29T17:00:00.000Z	30 \| good	5.398 \| good	10.049 \| good	32.008 \| good	0.448 \| good	3.762 \| good	0.266 \| good
2026-03-29T18:00:00.000Z	33 \| good	5.598 \| good	10.039 \| good	32.014 \| good	0.348 \| good	5.272 \| good	0.236 \| good
2026-03-29T19:00:00.000Z	35 \| good	5.897 \| good	11.017 \| good	38 \| good	0.319 \| good	4.555 \| good	0.236 \| good
2026-03-29T20:00:00.000Z	43 \| good	6.294 \| good	12.013 \| good	45.974 \| good	0.321 \| good	3.742 \| good	0.236 \| good
2026-03-29T21:00:00.000Z	44 \| good	6.693 \| good	13.02 \| good	46.974 \| good	0.281 \| good	3.58 \| good	0.236 \| good
2026-03-29T22:00:00.000Z	44 \| good	6.693 \| good	13.02 \| good	46.974 \| good	0.281 \| good	3.58 \| good	0.236 \| good
2026-03-29T23:00:00.000Z	49 \| good	8.674 \| good	37.947 \| good	40.13 \| good	2.407 \| good	10.551 \| good	0.214 \| good
2026-03-30T00:00:00.000Z	44 \| good	8.307 \| good	36.715 \| good	32.528 \| good	2.296 \| good	12.828 \| good	0.227 \| good
2026-03-30T01:00:00.000Z	52 \| moderate	9.533 \| good	42.524 \| good	37.211 \| good	2.194 \| good	12.375 \| good	0.22 \| good
2026-03-30T02:00:00.000Z	60 \| moderate	13.764 \| fine	62.253 \| fine	33.5 \| good	2.091 \| good	11.923 \| good	0.214 \| good
2026-03-30T03:00:00.000Z	58 \| moderate	13.155 \| fine	59.151 \| fine	26.873 \| good	1.989 \| good	11.47 \| good	0.208 \| good
2026-03-30T04:00:00.000Z	56 \| moderate	11.888 \| good	52.814 \| good	25.351 \| good	1.862 \| good	9.911 \| good	0.196 \| good
2026-03-30T05:00:00.000Z	44 \| good	8.311 \| good	36.279 \| good	25.622 \| good	1.735 \| good	8.352 \| good	0.183 \| good
2026-03-30T06:00:00.000Z	27 \| good	5.363 \| good	23.356 \| good	24.793 \| good	1.608 \| good	6.793 \| good	0.171 \| good
2026-03-30T07:00:00.000Z	29 \| good	3.55 \| good	15.51 \| good	31.363 \| good	1.582 \| good	6.059 \| good	0.173 \| good
2026-03-30T08:00:00.000Z	27 \| good	3.835 \| good	17 \| good	29.436 \| good	1.555 \| good	5.324 \| good	0.176 \| good
2026-03-30T09:00:00.000Z	23 \| good	4.044 \| good	17.931 \| good	25.323 \| good	1.528 \| good	4.589 \| good	0.178 \| good
2026-03-30T10:00:00.000Z	44 \| good	7.75 \| good	33.774 \| good	12.149 \| good	1.613 \| good	5.208 \| good	0.188 \| good
2026-03-30T11:00:00.000Z	44 \| good	8.065 \| good	35.329 \| good	10.307 \| good	1.698 \| good	5.827 \| good	0.198 \| good
2026-03-30T12:00:00.000Z	49 \| good	8.761 \| good	38.348 \| good	12.34 \| good	1.782 \| good	6.446 \| good	0.208 \| good
2026-03-30T13:00:00.000Z	49 \| good	8.863 \| good	39.487 \| good	21.273 \| good	1.911 \| good	6.391 \| good	0.203 \| good
2026-03-30T14:00:00.000Z	44 \| good	8.236 \| good	36.39 \| good	26.546 \| good	2.041 \| good	6.335 \| good	0.199 \| good
2026-03-30T15:00:00.000Z	38 \| good	6.602 \| good	29.742 \| good	29.536 \| good	2.17 \| good	6.279 \| good	0.194 \| good
2026-03-30T16:00:00.000Z	33 \| good	6.26 \| good	27.825 \| good	29.844 \| good	2.246 \| good	5.495 \| good	0.187 \| good
2026-03-30T17:00:00.000Z	33 \| good	5.792 \| good	24.954 \| good	29.938 \| good	2.323 \| good	4.71 \| good	0.18 \| good
2026-03-30T18:00:00.000Z	49 \| good	8.954 \| good	39.027 \| good	36.064 \| good	2.399 \| good	3.925 \| good	0.173 \| good
2026-03-30T19:00:00.000Z	49 \| good	8.701 \| good	37.967 \| good	34.239 \| good	2.369 \| good	3.969 \| good	0.173 \| good
2026-03-30T20:00:00.000Z	38 \| good	7.473 \| good	32.954 \| good	36.029 \| good	2.338 \| good	4.012 \| good	0.173 \| good
2026-03-30T21:00:00.000Z	44 \| good	7.901 \| good	34.462 \| good	38.109 \| good	2.307 \| good	4.056 \| good	0.172 \| good
2026-03-30T22:00:00.000Z	54 \| moderate	10.747 \| good	47.686 \| good	36.432 \| good	2.43 \| good	6.43 \| good	0.186 \| good
2026-03-30T23:00:00.000Z	49 \| good	9.193 \| good	41 \| good	35.758 \| good	2.554 \| good	8.805 \| good	0.2 \| good
2026-03-31T00:00:00.000Z	56 \| moderate	12.464 \| fine	56.535 \| fine	35.441 \| good	2.678 \| good	11.179 \| good	0.213 \| good
2026-03-31T01:00:00.000Z	64 \| moderate	15.658 \| fine	70.237 \| fine	36.163 \| good	2.703 \| good	11.449 \| good	0.214 \| good
2026-03-31T02:00:00.000Z	69 \| moderate	19.493 \| fine	86.088 \| fine	7.745 \| good	2.728 \| good	11.72 \| good	0.215 \| good
2026-03-31T03:00:00.000Z	69 \| moderate	18.569 \| fine	81.23 \| fine	3.428 \| good	2.754 \| good	11.99 \| good	0.216 \| good
2026-03-31T04:00:00.000Z	62 \| moderate	14.69 \| fine	65.484 \| fine	10.095 \| good	2.64 \| good	10.962 \| good	0.21 \| good
2026-03-31T05:00:00.000Z	58 \| moderate	12.798 \| fine	58.081 \| fine	14.305 \| good	2.526 \| good	9.934 \| good	0.203 \| good
2026-03-31T06:00:00.000Z	56 \| moderate	12.043 \| good	12.3 \| good	36.295 \| good	2.402 \| good	8.844 \| good	0.196 \| good
2026-03-31T07:00:00.000Z	52 \| moderate	10.285 \| good	45.504 \| good	22.814 \| good	2.286 \| good	8.096 \| good	0.189 \| good
2026-03-31T08:00:00.000Z	58 \| moderate	12.803 \| fine	58.083 \| fine	15.524 \| good	2.16 \| good	7.287 \| good	0.182 \| good
2026-03-31T09:00:00.000Z	58 \| moderate	13.342 \| fine	59.972 \| fine	8.506 \| good	2.034 \| good	6.477 \| good	0.175 \| good
2026-03-31T10:00:00.000Z	21 \| good	3.182 \| good	13.283 \| good	22.974 \| good	1.947 \| good	6.998 \| good	0.175 \| good
2026-03-31T11:00:00.000Z	22 \| good	3.842 \| good	16.729 \| good	20.043 \| good	1.86 \| good	7.519 \| good	0.175 \| good
2026-03-31T12:00:00.000Z	52 \| moderate	10.192 \| good	10.584 \| good	34.057 \| good	1.767 \| good	7.997 \| good	0.174 \| good
2026-03-31T13:00:00.000Z	52 \| moderate	10.171 \| good	10.561 \| good	34.317 \| good	1.808 \| good	7.815 \| good	0.178 \| good
2026-03-31T14:00:00.000Z	52 \| moderate	10.167 \| good	10.592 \| good	34.576 \| good	1.849 \| good	7.633 \| good	0.182 \| good
2026-03-31T15:00:00.000Z	52 \| moderate	9.976 \| good	10.393 \| good	34.836 \| good	1.89 \| good	7.451 \| good	0.186 \| good
2026-03-31T16:00:00.000Z	52 \| moderate	9.643 \| good	10.059 \| good	38.168 \| good	1.85 \| good	6.554 \| good	0.181 \| good
2026-03-31T17:00:00.000Z	38 \| good	7.134 \| good	31.666 \| good	39.121 \| good	1.822 \| good	5.701 \| good	0.176 \| good
2026-03-31T18:00:00.000Z	52 \| moderate	9.797 \| good	10.212 \| good	44.833 \| good	1.77 \| good	4.761 \| good	0.17 \| good
2026-03-31T19:00:00.000Z	52 \| moderate	9.955 \| good	10.394 \| good	45.451 \| good	1.771 \| good	5.391 \| good	0.173 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	10.196 \| good	10.66 \| good	46.07 \| good	1.771 \| good	6.021 \| good	0.176 \| good
2026-03-31T21:00:00.000Z	54 \| moderate	10.84 \| good	11.278 \| good	46.688 \| good	1.772 \| good	6.651 \| good	0.178 \| good
2026-03-31T22:00:00.000Z	54 \| moderate	11.324 \| good	11.715 \| good	45.096 \| good	1.874 \| good	8.696 \| good	0.188 \| good

Danbury

Get reliable air quality data to drive your business

Danbury, Connecticut air quality map: Stay updated on AQI near you

0.24ppm

How accurate is Connecticut, USA air quality data?

Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Danbury, Connecticut?

The air quality information for Danbury, Connecticut is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Danbury, Connecticut at its worst?

In the past 24 hours, the air quality in Danbury, Connecticut was at its worst at 11:00:00 on 2026-03-29.

When did Danbury, Connecticut experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Danbury, Connecticut was observed at 04:00:00 on 2026-03-29.

What is the AQI in Danbury, Connecticut right now?

As of now, the AQI in Danbury, Connecticut is 44, indicating Good conditions.

What is the most common type of pollution in Danbury, Connecticut?

Danbury, Connecticut air has the highest levels of O3.

What should I do in case of poor air quality in Danbury, Connecticut?

Poor air quality in Danbury, Connecticut means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Danbury, Connecticut at the moment?

PM_2.5 levels in Danbury, Connecticut are currently 6.693 μg/m³.

What is the PM₁₀ level in Danbury, Connecticut at the moment?

The PM₁₀ concentration in Danbury, Connecticut is 13.02 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Danbury, Connecticut at the moment?

The current carbon monoxide (CO) concentration in Danbury, Connecticut is 0.236 ppm.

What is the sulfur dioxide (SO₂) level in Danbury, Connecticut at the moment?

Currently, Danbury, Connecticut has a sulfur dioxide (SO₂) concentration of 0.281 ppb.

What is the ozone (O₃) level in Danbury, Connecticut at the moment?

The current ozone (O₃) level in Danbury, Connecticut at the moment is 46.974 ppm.

What is the nitrogen dioxide (NO₂) level in Danbury, Connecticut at the moment?

Nitrogen dioxide (NO₂) level in Danbury, Connecticut at the moment is 3.58 ppb.

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