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

The current PM10 concentration at Fairfield, Connecticut is 12.544 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Fairfield, Connecticut is 0.124 ppb.

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

The current ozone (O3) concentration at Fairfield, Connecticut is 45.3 ppm.

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

The current nitrogen dioxide (NO2) concentration at Fairfield, Connecticut is 4.057 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)

Good

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)

6.36 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.42 μg/m³

155

255

425

605+

Ozone (O₃)

43.36 ppb

201

201+

Sulfur Dioxide (SO₂)

0.23 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.92 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 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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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
2025-09-12T01:00:00.000Z	32 \| good	5.084 \| good	14.487 \| good	35.305 \| good	0.184 \| good	13.43 \| good	0.343 \| good
2025-09-12T02:00:00.000Z	33 \| good	5.73 \| good	16.149 \| good	23.564 \| good	0.233 \| good	16.864 \| good	0.412 \| good
2025-09-12T03:00:00.000Z	44 \| good	8.123 \| good	35.668 \| good	14.284 \| good	1.097 \| good	18.548 \| good	0.349 \| good
2025-09-12T04:00:00.000Z	38 \| good	6.504 \| good	19.688 \| good	18.276 \| good	0.269 \| good	18.253 \| good	0.411 \| good
2025-09-12T05:00:00.000Z	33 \| good	6.28 \| good	18.538 \| good	21.427 \| good	0.242 \| good	19.33 \| good	0.377 \| good
2025-09-12T06:00:00.000Z	38 \| good	6.987 \| good	18.27 \| good	11.672 \| good	0.409 \| good	18.537 \| good	0.327 \| good
2025-09-12T07:00:00.000Z	38 \| good	7.106 \| good	21.093 \| good	17.145 \| good	0.198 \| good	19.471 \| good	0.327 \| good
2025-09-12T08:00:00.000Z	38 \| good	7.207 \| good	20.341 \| good	12.806 \| good	0.235 \| good	14.391 \| good	0.307 \| good
2025-09-12T09:00:00.000Z	33 \| good	5.943 \| good	15.473 \| good	15.73 \| good	0.173 \| good	10.725 \| good	0.259 \| good
2025-09-12T10:00:00.000Z	33 \| good	5.921 \| good	16.924 \| good	21.398 \| good	0.214 \| good	12.758 \| good	0.23 \| good
2025-09-12T11:00:00.000Z	33 \| good	5.964 \| good	18.256 \| good	18.186 \| good	0.434 \| good	17.41 \| good	0.23 \| good
2025-09-12T12:00:00.000Z	33 \| good	6.215 \| good	16.427 \| good	17.36 \| good	0.222 \| good	15.739 \| good	0.26 \| good
2025-09-12T13:00:00.000Z	33 \| good	6.024 \| good	16.711 \| good	21.728 \| good	0.309 \| good	8.939 \| good	0.261 \| good
2025-09-12T14:00:00.000Z	33 \| good	6.005 \| good	18.766 \| good	24.444 \| good	0.24 \| good	5.341 \| good	0.18 \| good
2025-09-12T15:00:00.000Z	33 \| good	5.907 \| good	15.588 \| good	28.817 \| good	0.324 \| good	3.183 \| good	0.165 \| good
2025-09-12T16:00:00.000Z	33 \| good	6.228 \| good	15.546 \| good	28.723 \| good	0.241 \| good	2.835 \| good	0.165 \| good
2025-09-12T17:00:00.000Z	33 \| good	6.325 \| good	15.825 \| good	31.889 \| good	0.104 \| good	2.692 \| good	0.165 \| good
2025-09-12T18:00:00.000Z	38 \| good	6.685 \| good	19.922 \| good	35.601 \| good	0.187 \| good	2.089 \| good	0.165 \| good
2025-09-12T19:00:00.000Z	42 \| good	6.576 \| good	18.387 \| good	44.811 \| good	0.109 \| good	1.989 \| good	0.165 \| good
2025-09-12T20:00:00.000Z	41 \| good	6.674 \| good	17.75 \| good	43.816 \| good	0.197 \| good	2.072 \| good	0.165 \| good
2025-09-12T21:00:00.000Z	43 \| good	6.697 \| good	20.299 \| good	46.078 \| good	0.106 \| good	2.804 \| good	0.165 \| good
2025-09-12T22:00:00.000Z	43 \| good	6.939 \| good	23.039 \| good	46.329 \| good	0.129 \| good	2.208 \| good	0.209 \| good
2025-09-12T23:00:00.000Z	41 \| good	6.653 \| good	18.103 \| good	43.818 \| good	0.127 \| good	2.069 \| good	0.194 \| good
2025-09-13T00:00:00.000Z	40 \| good	7.142 \| good	22.24 \| good	43.005 \| good	0.107 \| good	6.382 \| good	0.256 \| good
2025-09-13T01:00:00.000Z	38 \| good	7.162 \| good	19.543 \| good	37.231 \| good	0.251 \| good	4.669 \| good	0.242 \| good
2025-09-13T02:00:00.000Z	38 \| good	7.178 \| good	17.033 \| good	35.918 \| good	0.182 \| good	3.603 \| good	0.242 \| good
2025-09-13T03:00:00.000Z	38 \| good	7.48 \| good	20.465 \| good	28.781 \| good	0.375 \| good	4.916 \| good	0.241 \| good
2025-09-13T04:00:00.000Z	38 \| good	7.395 \| good	21.899 \| good	29.13 \| good	0.374 \| good	6.353 \| good	0.241 \| good
2025-09-13T05:00:00.000Z	38 \| good	7.221 \| good	21.482 \| good	30.458 \| good	0.174 \| good	7.038 \| good	0.31 \| good
2025-09-13T06:00:00.000Z	38 \| good	7.162 \| good	20.826 \| good	31.421 \| good	0.196 \| good	9.751 \| good	0.28 \| good
2025-09-13T07:00:00.000Z	38 \| good	7.118 \| good	18.642 \| good	29.626 \| good	0.173 \| good	12.713 \| good	0.296 \| good
2025-09-13T08:00:00.000Z	38 \| good	6.547 \| good	14.999 \| good	19.145 \| good	0.246 \| good	11.397 \| good	0.312 \| good
2025-09-13T09:00:00.000Z	33 \| good	6.483 \| good	14.733 \| good	18.086 \| good	0.726 \| good	11.862 \| good	0.262 \| good
2025-09-13T10:00:00.000Z	38 \| good	6.8 \| good	16.123 \| good	14.759 \| good	0.597 \| good	10.482 \| good	0.291 \| good
2025-09-13T11:00:00.000Z	38 \| good	6.527 \| good	16.175 \| good	18.003 \| good	0.56 \| good	9.642 \| good	0.323 \| good
2025-09-13T12:00:00.000Z	44 \| good	8.306 \| good	21.345 \| good	11.336 \| good	0.152 \| good	6.287 \| good	0.306 \| good
2025-09-13T13:00:00.000Z	44 \| good	7.802 \| good	17.571 \| good	11.992 \| good	0.14 \| good	7.161 \| good	0.321 \| good
2025-09-13T14:00:00.000Z	38 \| good	7.167 \| good	18.258 \| good	14.762 \| good	0.169 \| good	5.069 \| good	0.291 \| good
2025-09-13T15:00:00.000Z	38 \| good	6.799 \| good	17.898 \| good	28.364 \| good	0.206 \| good	2.622 \| good	0.225 \| good
2025-09-13T16:00:00.000Z	38 \| good	6.76 \| good	20.883 \| good	36.317 \| good	0.206 \| good	2.293 \| good	0.225 \| good
2025-09-13T17:00:00.000Z	38 \| good	6.915 \| good	21.298 \| good	40.614 \| good	0.204 \| good	3.257 \| good	0.241 \| good
2025-09-13T18:00:00.000Z	43 \| good	6.736 \| good	19.404 \| good	46.464 \| good	0.218 \| good	3.517 \| good	0.29 \| good
2025-09-13T19:00:00.000Z	45 \| good	7.321 \| good	21.931 \| good	49.413 \| good	0.119 \| good	2.764 \| good	0.239 \| good
2025-09-13T20:00:00.000Z	47 \| good	7.147 \| good	20.041 \| good	51.343 \| good	0.266 \| good	2.577 \| good	0.225 \| good
2025-09-13T21:00:00.000Z	46 \| good	6.743 \| good	19.924 \| good	50.233 \| good	0.199 \| good	2.849 \| good	0.225 \| good
2025-09-13T22:00:00.000Z	47 \| good	6.506 \| good	16.703 \| good	51.303 \| good	0.224 \| good	3.282 \| good	0.225 \| good
2025-09-13T23:00:00.000Z	43 \| good	6.33 \| good	18.37 \| good	46.02 \| good	0.226 \| good	3.368 \| good	0.226 \| good
2025-09-14T00:00:00.000Z	40 \| good	6.356 \| good	18.422 \| good	43.362 \| good	0.229 \| good	3.916 \| good	0.225 \| good
2025-09-14T00:00:00.000Z	40 \| good	6.356 \| good	18.422 \| good	43.362 \| good	0.229 \| good	3.916 \| good	0.225 \| good
2025-09-12T00:00:00.000Z	44 \| good	8.413 \| good	36.925 \| good	35.115 \| good	0.854 \| good	11.618 \| good	0.258 \| good
2025-09-12T01:00:00.000Z	52 \| moderate	9.501 \| good	42.46 \| good	27.653 \| good	0.914 \| good	13.51 \| good	0.281 \| good
2025-09-12T02:00:00.000Z	52 \| moderate	9.681 \| good	43.287 \| good	21.811 \| good	0.975 \| good	15.401 \| good	0.304 \| good
2025-09-12T03:00:00.000Z	54 \| moderate	10.592 \| good	46.893 \| good	16.451 \| good	1.036 \| good	17.293 \| good	0.328 \| good
2025-09-12T04:00:00.000Z	54 \| moderate	11.13 \| good	49.106 \| good	14.002 \| good	0.999 \| good	14.344 \| good	0.299 \| good
2025-09-12T05:00:00.000Z	52 \| moderate	10.005 \| good	44.505 \| good	15.521 \| good	0.961 \| good	11.395 \| good	0.271 \| good
2025-09-12T06:00:00.000Z	54 \| moderate	11.055 \| good	49.021 \| good	18.98 \| good	0.923 \| good	8.446 \| good	0.243 \| good
2025-09-12T07:00:00.000Z	56 \| moderate	11.783 \| good	52.447 \| good	22.005 \| good	0.83 \| good	6.678 \| good	0.226 \| good
2025-09-12T08:00:00.000Z	56 \| moderate	11.923 \| good	53.08 \| good	21.359 \| good	0.737 \| good	4.91 \| good	0.208 \| good
2025-09-12T09:00:00.000Z	49 \| good	8.536 \| good	37.666 \| good	20.646 \| good	0.644 \| good	3.142 \| good	0.191 \| good
2025-09-12T10:00:00.000Z	54 \| moderate	10.74 \| good	47.789 \| good	17.819 \| good	0.633 \| good	3.47 \| good	0.19 \| good
2025-09-12T11:00:00.000Z	52 \| moderate	9.504 \| good	42.016 \| good	14.58 \| good	0.623 \| good	3.799 \| good	0.19 \| good
2025-09-12T12:00:00.000Z	38 \| good	7.49 \| good	32.963 \| good	17.36 \| good	0.612 \| good	4.127 \| good	0.189 \| good
2025-09-12T13:00:00.000Z	38 \| good	6.547 \| good	29.045 \| good	22.113 \| good	0.608 \| good	3.502 \| good	0.185 \| good
2025-09-12T14:00:00.000Z	49 \| good	8.65 \| good	38.097 \| good	25.882 \| good	0.604 \| good	2.877 \| good	0.18 \| good
2025-09-12T15:00:00.000Z	38 \| good	7.167 \| good	32.007 \| good	30.026 \| good	0.6 \| good	2.252 \| good	0.175 \| good
2025-09-12T16:00:00.000Z	44 \| good	7.504 \| good	32.742 \| good	36.259 \| good	0.542 \| good	1.94 \| good	0.173 \| good
2025-09-12T17:00:00.000Z	38 \| good	7.491 \| good	33.125 \| good	40.282 \| good	0.484 \| good	1.629 \| good	0.17 \| good
2025-09-12T18:00:00.000Z	39 \| good	7.407 \| good	32.672 \| good	42.31 \| good	0.427 \| good	1.318 \| good	0.168 \| good
2025-09-12T19:00:00.000Z	41 \| good	6.848 \| good	30.529 \| good	44.298 \| good	0.392 \| good	1.393 \| good	0.166 \| good
2025-09-12T20:00:00.000Z	41 \| good	6.492 \| good	28.728 \| good	43.736 \| good	0.358 \| good	1.468 \| good	0.164 \| good
2025-09-12T21:00:00.000Z	39 \| good	7.07 \| good	31.388 \| good	41.951 \| good	0.324 \| good	1.544 \| good	0.162 \| good
2025-09-12T22:00:00.000Z	38 \| good	7.325 \| good	32.381 \| good	38.071 \| good	0.36 \| good	4.297 \| good	0.186 \| good
2025-09-12T23:00:00.000Z	33 \| good	5.827 \| good	25.573 \| good	28.375 \| good	0.397 \| good	7.051 \| good	0.21 \| good
2025-09-13T00:00:00.000Z	27 \| good	4.934 \| good	21.3 \| good	26.727 \| good	0.433 \| good	9.805 \| good	0.234 \| good
2025-09-13T01:00:00.000Z	38 \| good	6.741 \| good	29.865 \| good	23.035 \| good	0.5 \| good	9.502 \| good	0.228 \| good
2025-09-13T02:00:00.000Z	27 \| good	5.161 \| good	22.344 \| good	18.79 \| good	0.567 \| good	9.198 \| good	0.223 \| good
2025-09-13T03:00:00.000Z	27 \| good	5.455 \| good	23.418 \| good	18.542 \| good	0.634 \| good	8.895 \| good	0.217 \| good
2025-09-13T04:00:00.000Z	22 \| good	4.385 \| good	19.09 \| good	19.344 \| good	0.641 \| good	7.902 \| good	0.203 \| good
2025-09-13T05:00:00.000Z	38 \| good	6.545 \| good	29.144 \| good	17.068 \| good	0.647 \| good	6.909 \| good	0.188 \| good
2025-09-13T06:00:00.000Z	33 \| good	5.911 \| good	26.186 \| good	17.671 \| good	0.654 \| good	5.916 \| good	0.174 \| good
2025-09-13T07:00:00.000Z	27 \| good	5.205 \| good	22.536 \| good	16.467 \| good	0.675 \| good	5.841 \| good	0.17 \| good
2025-09-13T08:00:00.000Z	27 \| good	4.658 \| good	19.959 \| good	14.289 \| good	0.696 \| good	5.765 \| good	0.166 \| good
2025-09-13T09:00:00.000Z	38 \| good	6.805 \| good	30.027 \| good	12.996 \| good	0.717 \| good	5.69 \| good	0.162 \| good
2025-09-13T10:00:00.000Z	33 \| good	5.687 \| good	24.626 \| good	12.302 \| good	0.737 \| good	7.281 \| good	0.188 \| good
2025-09-13T11:00:00.000Z	33 \| good	6.074 \| good	26.935 \| good	12.121 \| good	0.757 \| good	8.872 \| good	0.214 \| good
2025-09-13T12:00:00.000Z	38 \| good	6.677 \| good	29.567 \| good	15.473 \| good	0.777 \| good	10.463 \| good	0.24 \| good
2025-09-13T13:00:00.000Z	33 \| good	5.819 \| good	25.606 \| good	24.489 \| good	1.216 \| good	8.86 \| good	0.221 \| good
2025-09-13T14:00:00.000Z	33 \| good	6.285 \| good	27.342 \| good	30.255 \| good	1.655 \| good	7.257 \| good	0.202 \| good
2025-09-13T15:00:00.000Z	38 \| good	7.435 \| good	32.918 \| good	38.017 \| good	2.094 \| good	5.653 \| good	0.183 \| good
2025-09-13T16:00:00.000Z	49 \| good	9.083 \| good	40.145 \| good	46.829 \| good	1.735 \| good	4.41 \| good	0.179 \| good
2025-09-13T17:00:00.000Z	52 \| moderate	10.362 \| good	45.824 \| good	54.829 \| good	1.377 \| good	3.166 \| good	0.176 \| good
2025-09-13T18:00:00.000Z	67 \| moderate	11.757 \| good	52.36 \| good	59.901 \| fine	1.018 \| good	1.923 \| good	0.172 \| good
2025-09-13T19:00:00.000Z	64 \| moderate	11.564 \| good	51.471 \| good	58.918 \| fine	0.882 \| good	2.014 \| good	0.171 \| good
2025-09-13T20:00:00.000Z	71 \| moderate	14.199 \| fine	63.549 \| fine	60.614 \| fine	0.746 \| good	2.105 \| good	0.169 \| good
2025-09-13T21:00:00.000Z	56 \| moderate	11.998 \| good	53.565 \| good	53.738 \| good	0.61 \| good	2.196 \| good	0.168 \| good
2025-09-13T22:00:00.000Z	44 \| good	7.927 \| good	34.734 \| good	44.816 \| good	0.633 \| good	6.262 \| good	0.207 \| good
2025-09-13T23:00:00.000Z	36 \| good	6.492 \| good	28.898 \| good	38.86 \| good	0.656 \| good	10.327 \| good	0.245 \| good

Fairfield

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Fairfield, Connecticut air quality map: Track AQI near you

0.20ppm

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 09:00:00 on 2025-09-11.

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 03:00:00 on 2025-09-11.

What is the current air quality in Fairfield, Connecticut?

The current air quality in Fairfield, Connecticut is 42, categorized as Good based on real-time data.

What pollutant is the most common in Fairfield, Connecticut?

The most common pollutant in Fairfield, Connecticut is O3.

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 4.203 μg/m³.

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

The current PM₁₀ concentration at Fairfield, Connecticut is 12.544 μg/m³.

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

The current carbon monoxide (CO) concentration at Fairfield, Connecticut is 0.2 ppm.

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

The current sulfur dioxide (SO₂) concentration at Fairfield, Connecticut is 0.124 ppb.

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

The current ozone (O₃) concentration at Fairfield, Connecticut is 45.3 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Fairfield, Connecticut is 4.057 ppb.

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