What is the current concentration of PM10 in Fairfield, Connecticut?

The current PM10 concentration at Fairfield, Connecticut is 37.306 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Fairfield, Connecticut?

The current sulfur dioxide (SO2) concentration at Fairfield, Connecticut is 0.775 ppb.

What is the current concentration of ozone (O3) in Fairfield, Connecticut?

The current ozone (O3) concentration at Fairfield, Connecticut is 28.88 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Fairfield, Connecticut?

The current nitrogen dioxide (NO2) concentration at Fairfield, Connecticut is 12.883 ppb.

Fairfield, Connecticut live air quality index now

Name: Live air pollution levels in Fairfield, Connecticut today
Creator: Ambee

Stay updated with real-time air quality in Fairfield, 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)

Moderate

Fairfield, Connecticut

Last updated: ... (Local time)

Major air pollutants in Fairfield, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

12.22 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

31.42 μg/m³

155

255

425

605+

Ozone (O₃)

21.34 ppb

201

201+

Sulfur Dioxide (SO₂)

0.50 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.95 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Fairfield, Connecticut

Scroll To Air Quality Map

Track live Fairfield, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-28T12:00:00.000Z	54 \| moderate	11.23 \| good	28.521 \| good	17.54 \| good	0.478 \| good	10.24 \| good	0.364 \| good
2025-07-28T13:00:00.000Z	54 \| moderate	10.552 \| good	26.444 \| good	25.398 \| good	0.468 \| good	6.359 \| good	0.326 \| good
2025-07-28T14:00:00.000Z	54 \| moderate	10.702 \| good	29.094 \| good	22.812 \| good	0.295 \| good	3.721 \| good	0.323 \| good
2025-07-28T15:00:00.000Z	52 \| moderate	9.65 \| good	25.85 \| good	21.9 \| good	0.299 \| good	3.676 \| good	0.271 \| good
2025-07-28T16:00:00.000Z	52 \| moderate	9.512 \| good	21.249 \| good	35.896 \| good	0.535 \| good	3.511 \| good	0.18 \| good
2025-07-28T17:00:00.000Z	52 \| moderate	10.224 \| good	28.099 \| good	40.731 \| good	0.539 \| good	3.789 \| good	0.18 \| good
2025-07-28T18:00:00.000Z	52 \| moderate	10.095 \| good	26.96 \| good	40.78 \| good	0.582 \| good	7.742 \| good	0.214 \| good
2025-07-28T19:00:00.000Z	49 \| good	9.499 \| good	26.996 \| good	45.525 \| good	0.435 \| good	4.785 \| good	0.18 \| good
2025-07-28T20:00:00.000Z	52 \| moderate	10.035 \| good	23.779 \| good	46.96 \| good	0.458 \| good	5.051 \| good	0.217 \| good
2025-07-28T21:00:00.000Z	52 \| moderate	9.8 \| good	23.092 \| good	42.679 \| good	0.45 \| good	2.012 \| good	0.252 \| good
2025-07-28T22:00:00.000Z	52 \| moderate	9.551 \| good	25.835 \| good	46.8 \| good	0.281 \| good	1.833 \| good	0.252 \| good
2025-07-28T23:00:00.000Z	52 \| moderate	10.324 \| good	28.022 \| good	50.41 \| good	0.368 \| good	4.312 \| good	0.217 \| good
2025-07-29T00:00:00.000Z	54 \| moderate	10.952 \| good	22.134 \| good	46.373 \| good	0.473 \| good	6.622 \| good	0.266 \| good
2025-07-29T01:00:00.000Z	54 \| moderate	11.069 \| good	21.377 \| good	43.48 \| good	0.454 \| good	4.908 \| good	0.302 \| good
2025-07-29T02:00:00.000Z	56 \| moderate	12.308 \| fine	34.096 \| good	37.572 \| good	0.634 \| good	15.461 \| good	0.292 \| good
2025-07-29T03:00:00.000Z	56 \| moderate	11.949 \| good	29.854 \| good	34.752 \| good	0.529 \| good	12.797 \| good	0.339 \| good
2025-07-29T04:00:00.000Z	56 \| moderate	11.673 \| good	24.662 \| good	34.23 \| good	0.577 \| good	11.419 \| good	0.356 \| good
2025-07-29T05:00:00.000Z	56 \| moderate	12.179 \| fine	32.807 \| good	30.671 \| good	0.934 \| good	16.451 \| good	0.443 \| good
2025-07-29T06:00:00.000Z	56 \| moderate	11.949 \| good	31.555 \| good	22.933 \| good	0.832 \| good	14.298 \| good	0.326 \| good
2025-07-29T07:00:00.000Z	56 \| moderate	11.697 \| good	25.046 \| good	18.691 \| good	0.758 \| good	12.871 \| good	0.43 \| good
2025-07-29T08:00:00.000Z	58 \| moderate	13.012 \| fine	34.733 \| good	15.743 \| good	0.752 \| good	13.122 \| good	0.43 \| good
2025-07-29T09:00:00.000Z	56 \| moderate	12.41 \| fine	28.615 \| good	21.369 \| good	0.752 \| good	11.183 \| good	0.326 \| good
2025-07-29T10:00:00.000Z	58 \| moderate	12.863 \| fine	30.188 \| good	14.279 \| good	0.752 \| good	11.843 \| good	0.426 \| good
2025-07-29T11:00:00.000Z	58 \| moderate	13.275 \| fine	27.896 \| good	16.928 \| good	0.759 \| good	13.142 \| good	0.469 \| good
2025-07-29T12:00:00.000Z	58 \| moderate	13.115 \| fine	23.379 \| good	20.555 \| good	0.742 \| good	11.896 \| good	0.487 \| good
2025-07-29T13:00:00.000Z	60 \| moderate	14.341 \| fine	39.178 \| good	15.021 \| good	0.861 \| good	13.701 \| good	0.575 \| good
2025-07-29T14:00:00.000Z	64 \| moderate	16.372 \| fine	58.578 \| fine	18.323 \| good	1.034 \| good	17.803 \| good	0.431 \| good
2025-07-29T15:00:00.000Z	60 \| moderate	14.448 \| fine	38.906 \| good	24.752 \| good	1.082 \| good	14.654 \| good	0.421 \| good
2025-07-29T16:00:00.000Z	62 \| moderate	14.612 \| fine	40.488 \| good	31.423 \| good	1.016 \| good	13.449 \| good	0.346 \| good
2025-07-29T17:00:00.000Z	62 \| moderate	15.334 \| fine	38.861 \| good	41.314 \| good	0.951 \| good	12.012 \| good	0.315 \| good
2025-07-29T18:00:00.000Z	62 \| moderate	15.16 \| fine	32.273 \| good	58.218 \| fine	0.919 \| good	7.453 \| good	0.392 \| good
2025-07-29T19:00:00.000Z	101 \| sensitive	15.316 \| fine	31.023 \| good	70.862 \| fine	0.8 \| good	7.728 \| good	0.327 \| good
2025-07-29T20:00:00.000Z	61 \| moderate	13.769 \| fine	27.894 \| good	58.439 \| fine	0.881 \| good	13.618 \| good	0.328 \| good
2025-07-29T21:00:00.000Z	77 \| moderate	13.49 \| fine	33.507 \| good	63.103 \| fine	0.86 \| good	12.018 \| good	0.308 \| good
2025-07-29T22:00:00.000Z	74 \| moderate	13.697 \| fine	37.848 \| good	61.61 \| fine	0.998 \| good	2.673 \| good	0.308 \| good
2025-07-29T23:00:00.000Z	74 \| moderate	12.852 \| fine	34.855 \| good	62.245 \| fine	1.025 \| good	2.068 \| good	0.345 \| good
2025-07-30T00:00:00.000Z	97 \| moderate	14.179 \| fine	28.293 \| good	68.81 \| fine	1.05 \| good	4.785 \| good	0.344 \| good
2025-07-30T01:00:00.000Z	93 \| moderate	14.019 \| fine	34.124 \| good	68.037 \| fine	1.04 \| good	4.413 \| good	0.268 \| good
2025-07-30T02:00:00.000Z	84 \| moderate	13.055 \| fine	35.42 \| good	64.525 \| fine	1.434 \| good	5.732 \| good	0.31 \| good
2025-07-30T03:00:00.000Z	73 \| moderate	21.333 \| fine	94.072 \| fine	24.332 \| good	0.946 \| good	9.457 \| good	0.267 \| good
2025-07-30T04:00:00.000Z	60 \| moderate	13.703 \| fine	30.186 \| good	47.418 \| good	1.153 \| good	20.441 \| good	0.253 \| good
2025-07-30T05:00:00.000Z	62 \| moderate	14.725 \| fine	41.459 \| good	48.308 \| good	1.147 \| good	19.311 \| good	0.258 \| good
2025-07-30T06:00:00.000Z	62 \| moderate	14.62 \| fine	37.036 \| good	42.042 \| good	1.025 \| good	12.801 \| good	0.263 \| good
2025-07-30T07:00:00.000Z	60 \| moderate	14.45 \| fine	35.363 \| good	36.838 \| good	0.793 \| good	14.672 \| good	0.232 \| good
2025-07-30T08:00:00.000Z	62 \| moderate	14.619 \| fine	37.306 \| good	28.88 \| good	0.775 \| good	12.883 \| good	0.232 \| good
2025-07-30T09:00:00.000Z	58 \| moderate	13.08 \| fine	33.287 \| good	25.223 \| good	0.584 \| good	13.751 \| good	0.217 \| good
2025-07-30T10:00:00.000Z	56 \| moderate	12.217 \| fine	31.424 \| good	21.337 \| good	0.501 \| good	14.945 \| good	0.285 \| good
2025-07-30T11:00:00.000Z	56 \| moderate	12.217 \| fine	31.424 \| good	21.337 \| good	0.501 \| good	14.945 \| good	0.285 \| good
2025-07-30T09:00:00.000Z	71 \| moderate	19.869 \| fine	87.583 \| fine	20.243 \| good	1.194 \| good	10.382 \| good	0.304 \| good
2025-07-30T10:00:00.000Z	73 \| moderate	20.953 \| fine	92.093 \| fine	16.409 \| good	1.193 \| good	9.275 \| good	0.294 \| good
2025-07-30T11:00:00.000Z	73 \| moderate	21.236 \| fine	93.519 \| fine	19.527 \| good	1.192 \| good	8.168 \| good	0.285 \| good
2025-07-30T12:00:00.000Z	75 \| moderate	21.877 \| fine	95.985 \| fine	28.349 \| good	1.191 \| good	7.061 \| good	0.275 \| good
2025-07-30T13:00:00.000Z	75 \| moderate	21.544 \| fine	94.767 \| fine	36.711 \| good	1.229 \| good	5.668 \| good	0.255 \| good
2025-07-30T14:00:00.000Z	77 \| moderate	22.591 \| fine	99.044 \| fine	44.581 \| good	1.268 \| good	4.274 \| good	0.235 \| good
2025-07-30T15:00:00.000Z	75 \| moderate	22.167 \| fine	97.255 \| fine	54.769 \| good	1.306 \| good	2.881 \| good	0.215 \| good
2025-07-30T16:00:00.000Z	77 \| moderate	21.982 \| fine	96.396 \| fine	63.256 \| fine	1.461 \| good	2.457 \| good	0.212 \| good
2025-07-30T17:00:00.000Z	87 \| moderate	21.095 \| fine	92.555 \| fine	65.829 \| fine	1.616 \| good	2.033 \| good	0.208 \| good
2025-07-30T18:00:00.000Z	90 \| moderate	21.47 \| fine	94.699 \| fine	67.097 \| fine	1.771 \| good	1.609 \| good	0.205 \| good
2025-07-30T19:00:00.000Z	133 \| sensitive	23.093 \| fine	101.02 \| fine	79.505 \| moderate	1.652 \| good	1.651 \| good	0.2 \| good
2025-07-30T20:00:00.000Z	143 \| sensitive	23.571 \| fine	103.214 \| fine	83.17 \| moderate	1.533 \| good	1.694 \| good	0.194 \| good
2025-07-30T21:00:00.000Z	133 \| sensitive	25.064 \| fine	108.975 \| fine	79.99 \| moderate	1.414 \| good	1.736 \| good	0.189 \| good
2025-07-30T22:00:00.000Z	101 \| sensitive	25.598 \| fine	111.652 \| fine	70.813 \| fine	1.416 \| good	2.504 \| good	0.196 \| good
2025-07-30T23:00:00.000Z	77 \| moderate	23.176 \| fine	101.158 \| fine	54.085 \| good	1.418 \| good	3.271 \| good	0.203 \| good
2025-07-31T00:00:00.000Z	75 \| moderate	21.837 \| fine	95.935 \| fine	52.665 \| good	1.42 \| good	4.039 \| good	0.211 \| good
2025-07-31T01:00:00.000Z	73 \| moderate	20.756 \| fine	91.429 \| fine	48.532 \| good	1.384 \| good	5.349 \| good	0.225 \| good
2025-07-31T02:00:00.000Z	71 \| moderate	20.041 \| fine	88.2 \| fine	40.532 \| good	1.347 \| good	6.659 \| good	0.239 \| good
2025-07-31T03:00:00.000Z	73 \| moderate	20.613 \| fine	90.506 \| fine	37.151 \| good	1.31 \| good	7.969 \| good	0.253 \| good
2025-07-31T04:00:00.000Z	67 \| moderate	17.996 \| fine	79.48 \| fine	35.173 \| good	1.194 \| good	7.167 \| good	0.248 \| good
2025-07-31T05:00:00.000Z	60 \| moderate	14.066 \| fine	63.11 \| fine	34.228 \| good	1.078 \| good	6.365 \| good	0.243 \| good
2025-07-31T06:00:00.000Z	58 \| moderate	13.002 \| fine	58.141 \| fine	33.746 \| good	0.962 \| good	5.562 \| good	0.238 \| good
2025-07-31T07:00:00.000Z	60 \| moderate	13.564 \| fine	60.946 \| fine	32.228 \| good	1.024 \| good	5.332 \| good	0.229 \| good
2025-07-31T08:00:00.000Z	62 \| moderate	15.49 \| fine	69.041 \| fine	30.35 \| good	1.086 \| good	5.102 \| good	0.219 \| good
2025-07-31T09:00:00.000Z	64 \| moderate	15.648 \| fine	69.802 \| fine	23.743 \| good	1.149 \| good	4.871 \| good	0.21 \| good
2025-07-31T10:00:00.000Z	64 \| moderate	15.754 \| fine	69.921 \| fine	18.284 \| good	1.063 \| good	4.399 \| good	0.209 \| good
2025-07-31T11:00:00.000Z	64 \| moderate	16.494 \| fine	73.424 \| fine	21.296 \| good	0.978 \| good	3.926 \| good	0.208 \| good
2025-07-31T12:00:00.000Z	71 \| moderate	19.702 \| fine	86.753 \| fine	29.577 \| good	0.893 \| good	3.453 \| good	0.207 \| good
2025-07-31T13:00:00.000Z	67 \| moderate	17.555 \| fine	78.302 \| fine	36.609 \| good	0.773 \| good	3.263 \| good	0.204 \| good
2025-07-31T14:00:00.000Z	67 \| moderate	18.259 \| fine	80.302 \| fine	42.085 \| good	0.654 \| good	3.074 \| good	0.202 \| good
2025-07-31T15:00:00.000Z	66 \| moderate	17.46 \| fine	77.328 \| fine	45.526 \| good	0.534 \| good	2.884 \| good	0.2 \| good
2025-07-31T16:00:00.000Z	66 \| moderate	17.411 \| fine	77.116 \| fine	49.715 \| good	0.547 \| good	2.718 \| good	0.201 \| good
2025-07-31T17:00:00.000Z	71 \| moderate	19.768 \| fine	86.942 \| fine	53.43 \| good	0.56 \| good	2.553 \| good	0.202 \| good
2025-07-31T18:00:00.000Z	75 \| moderate	21.681 \| fine	94.898 \| fine	49.28 \| good	0.573 \| good	2.387 \| good	0.203 \| good
2025-07-31T19:00:00.000Z	75 \| moderate	22.451 \| fine	98.433 \| fine	38.885 \| good	0.561 \| good	2.464 \| good	0.205 \| good
2025-07-31T20:00:00.000Z	75 \| moderate	22.359 \| fine	98.109 \| fine	27.035 \| good	0.548 \| good	2.542 \| good	0.207 \| good
2025-07-31T21:00:00.000Z	71 \| moderate	20.439 \| fine	89.652 \| fine	27.069 \| good	0.536 \| good	2.619 \| good	0.21 \| good
2025-07-31T22:00:00.000Z	66 \| moderate	17.148 \| fine	76.052 \| fine	26.424 \| good	0.509 \| good	3.49 \| good	0.219 \| good
2025-07-31T23:00:00.000Z	64 \| moderate	16.228 \| fine	72.052 \| fine	24.632 \| good	0.482 \| good	4.361 \| good	0.229 \| good
2025-08-01T00:00:00.000Z	64 \| moderate	15.602 \| fine	69.73 \| fine	28.221 \| good	0.455 \| good	5.232 \| good	0.238 \| good
2025-08-01T01:00:00.000Z	64 \| moderate	16.254 \| fine	71.955 \| fine	27.485 \| good	0.454 \| good	4.831 \| good	0.236 \| good
2025-08-01T02:00:00.000Z	66 \| moderate	16.992 \| fine	75.745 \| fine	27.021 \| good	0.454 \| good	4.43 \| good	0.233 \| good
2025-08-01T03:00:00.000Z	66 \| moderate	17.333 \| fine	77.295 \| fine	26.355 \| good	0.454 \| good	4.029 \| good	0.231 \| good
2025-08-01T04:00:00.000Z	67 \| moderate	18.383 \| fine	80.76 \| fine	25.464 \| good	0.485 \| good	3.975 \| good	0.241 \| good
2025-08-01T05:00:00.000Z	73 \| moderate	20.626 \| fine	90.525 \| fine	23.039 \| good	0.516 \| good	3.922 \| good	0.251 \| good
2025-08-01T06:00:00.000Z	52 \| moderate	9.903 \| good	10.321 \| good	35.593 \| good	0.544 \| good	3.867 \| good	0.261 \| good
2025-08-01T07:00:00.000Z	69 \| moderate	18.865 \| fine	83.006 \| fine	25.559 \| good	0.528 \| good	3.479 \| good	0.252 \| good
2025-08-01T08:00:00.000Z	69 \| moderate	19.089 \| fine	84.132 \| fine	26.14 \| good	0.509 \| good	3.09 \| good	0.243 \| good

Fairfield

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Fairfield, Connecticut air quality map: Track AQI near you

0.24ppm

How accurate is Connecticut, USA air quality data?

Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Fairfield, Connecticut updated?

The air quality for Fairfield, Connecticut is updated every hour.

When was the worst air quality at Fairfield, Connecticut in the last 24 hrs?

The worst air quality in Fairfield, Connecticut in the last 24 hours was observed at 07:00:00 on 2025-07-29.

When was the best air quality at Fairfield, Connecticut in the last 24 hrs?

In the last 24 hrs, the best air quality in Fairfield, Connecticut was observed at 09:00:00 on 2025-07-29.

What is the current air quality in Fairfield, Connecticut?

The current air quality in Fairfield, Connecticut is 62, categorized as Moderate based on real-time data.

What pollutant is the most common in Fairfield, Connecticut?

The most common pollutant in Fairfield, Connecticut is PM2.5.

What should I do if the air quality in Fairfield, Connecticut is poor?

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

What is the current concentration of PM_2.5 in Fairfield, Connecticut?

The current PM_2.5 concentration at Fairfield, Connecticut is 14.619 μg/m³.

What is the current concentration of PM₁₀ in Fairfield, Connecticut?

The current PM₁₀ concentration at Fairfield, Connecticut is 37.306 μg/m³.

What is the current concentration of carbon monoxide (CO) in Fairfield, Connecticut?

The current carbon monoxide (CO) concentration at Fairfield, Connecticut is 0.232 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Fairfield, Connecticut?

The current sulfur dioxide (SO₂) concentration at Fairfield, Connecticut is 0.775 ppb.

What is the current concentration of ozone (O₃) in Fairfield, Connecticut?

The current ozone (O₃) concentration at Fairfield, Connecticut is 28.88 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Fairfield, Connecticut?

The current nitrogen dioxide (NO₂) concentration at Fairfield, Connecticut is 12.883 ppb.

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