What are the current PM10 levels at Darien, Connecticut?

The current PM10 levels in Darien, Connecticut are 16.018 μg/m3.

What are the current sulfur dioxide (SO2) levels at Darien, Connecticut?

The current sulfur dioxide (SO2) levels in Darien, Connecticut are 1 ppb.

What are the current ozone (O3) levels at Darien, Connecticut?

The current ozone (O3) levels at Darien, Connecticut is 26.07 ppm.

What are the current nitrogen dioxide (NO2) levels at Darien, Connecticut?

The current nitrogen dioxide (NO2) levels at Darien, Connecticut is 10.679 ppb.

Live air quality index in Darien, Connecticut today

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

Stay updated with real-time air quality in Darien, 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

Darien, Connecticut

Last updated: ... (Local time)

Major air pollutants in Darien, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.30 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

21.00 μg/m³

155

255

425

605+

Ozone (O₃)

43.82 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.44 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.43 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Darien, Connecticut

Get Live Pollen Counts

Darien, Connecticut

Scroll To Air Quality Map

Track live Darien, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	43 \| good	6.923 \| good	31.31 \| good	46.375 \| good	0.509 \| good	5.608 \| good	0.317 \| good
2025-07-09T20:00:00.000Z	52 \| moderate	10.192 \| good	45.903 \| good	43.093 \| good	0.428 \| good	4.003 \| good	0.276 \| good
2025-07-09T21:00:00.000Z	43 \| good	6.949 \| good	38.434 \| good	45.832 \| good	0.649 \| good	2.601 \| good	0.276 \| good
2025-07-09T22:00:00.000Z	45 \| good	6.56 \| good	49.144 \| good	47.014 \| good	1.419 \| good	4.903 \| good	0.276 \| good
2025-07-09T23:00:00.000Z	44 \| good	7.641 \| good	34.32 \| good	44.932 \| good	1.363 \| good	6.086 \| good	0.297 \| good
2025-07-10T00:00:00.000Z	41 \| good	4.893 \| good	25.732 \| good	43.509 \| good	0.774 \| good	8.107 \| good	0.298 \| good
2025-07-10T01:00:00.000Z	44 \| good	6.85 \| good	33.424 \| good	47.337 \| good	0.818 \| good	5.7 \| good	0.359 \| good
2025-07-10T02:00:00.000Z	45 \| good	7.765 \| good	36.888 \| good	48.986 \| good	0.68 \| good	5.509 \| good	0.339 \| good
2025-07-10T03:00:00.000Z	41 \| good	6.67 \| good	34.562 \| good	43.763 \| good	0.66 \| good	7.758 \| good	0.319 \| good
2025-07-10T04:00:00.000Z	44 \| good	8.259 \| good	25.993 \| good	40.073 \| good	0.887 \| good	6.615 \| good	0.319 \| good
2025-07-10T05:00:00.000Z	49 \| good	8.65 \| good	20.454 \| good	32.684 \| good	0.755 \| good	11.321 \| good	0.277 \| good
2025-07-10T06:00:00.000Z	44 \| good	7.863 \| good	16.018 \| good	26.07 \| good	1 \| good	10.679 \| good	0.236 \| good
2025-07-10T07:00:00.000Z	33 \| good	6.398 \| good	24.591 \| good	29.123 \| good	0.812 \| good	12.792 \| good	0.252 \| good
2025-07-10T08:00:00.000Z	38 \| good	6.518 \| good	21.229 \| good	26.357 \| good	0.823 \| good	9.669 \| good	0.236 \| good
2025-07-10T09:00:00.000Z	38 \| good	6.964 \| good	28.446 \| good	23.614 \| good	0.461 \| good	10.932 \| good	0.236 \| good
2025-07-10T10:00:00.000Z	22 \| good	3.596 \| good	15.36 \| good	22.891 \| good	0.524 \| good	13.035 \| good	0.216 \| good
2025-07-10T11:00:00.000Z	27 \| good	4.594 \| good	17.495 \| good	27.286 \| good	0.354 \| good	6.767 \| good	0.261 \| good
2025-07-10T12:00:00.000Z	33 \| good	5.584 \| good	17.407 \| good	33.335 \| good	0.287 \| good	8.135 \| good	0.296 \| good
2025-07-10T13:00:00.000Z	33 \| good	6.366 \| good	28.449 \| good	25.041 \| good	0.534 \| good	6.863 \| good	0.345 \| good
2025-07-10T14:00:00.000Z	44 \| good	8.45 \| good	37.07 \| good	29.773 \| good	0.538 \| good	7.766 \| good	0.363 \| good
2025-07-10T15:00:00.000Z	44 \| good	8.358 \| good	32.395 \| good	31.823 \| good	0.66 \| good	5.973 \| good	0.383 \| good
2025-07-10T16:00:00.000Z	33 \| good	5.867 \| good	27.705 \| good	33.545 \| good	0.776 \| good	7.85 \| good	0.399 \| good
2025-07-10T17:00:00.000Z	40 \| good	5.395 \| good	24.417 \| good	42.653 \| good	0.464 \| good	15.861 \| good	0.418 \| good
2025-07-10T18:00:00.000Z	49 \| good	9.21 \| good	45.556 \| good	41.385 \| good	0.507 \| good	17.984 \| good	0.435 \| good
2025-07-10T19:00:00.000Z	42 \| good	6.471 \| good	34.281 \| good	44.607 \| good	0.333 \| good	13.925 \| good	0.454 \| good
2025-07-10T20:00:00.000Z	46 \| good	5.156 \| good	18.262 \| good	49.799 \| good	0.16 \| good	11.003 \| good	0.389 \| good
2025-07-10T21:00:00.000Z	45 \| good	5.75 \| good	16.698 \| good	49.392 \| good	0.13 \| good	8.096 \| good	0.391 \| good
2025-07-10T22:00:00.000Z	49 \| good	4.404 \| good	17.482 \| good	52.625 \| good	0.12 \| good	2.507 \| good	0.418 \| good
2025-07-10T23:00:00.000Z	58 \| moderate	4.597 \| good	14.3 \| good	56.517 \| fine	0.213 \| good	9.014 \| good	0.358 \| good
2025-07-11T00:00:00.000Z	46 \| good	4.7 \| good	21.354 \| good	49.864 \| good	0.295 \| good	10.904 \| good	0.378 \| good
2025-07-11T01:00:00.000Z	43 \| good	5.504 \| good	24.438 \| good	46.274 \| good	0.371 \| good	9.109 \| good	0.353 \| good
2025-07-11T02:00:00.000Z	40 \| good	5.808 \| good	20.093 \| good	42.88 \| good	0.64 \| good	8.805 \| good	0.333 \| good
2025-07-11T03:00:00.000Z	37 \| good	5.702 \| good	12.273 \| good	40.493 \| good	0.9 \| good	5.218 \| good	0.349 \| good
2025-07-11T04:00:00.000Z	34 \| good	4.842 \| good	14.451 \| good	37.045 \| good	0.93 \| good	10.775 \| good	0.358 \| good
2025-07-11T05:00:00.000Z	29 \| good	4.926 \| good	15.877 \| good	31.052 \| good	0.939 \| good	14.472 \| good	0.338 \| good
2025-07-11T06:00:00.000Z	27 \| good	4.96 \| good	12.056 \| good	27.701 \| good	0.984 \| good	11.53 \| good	0.313 \| good
2025-07-11T07:00:00.000Z	30 \| good	4.632 \| good	13.043 \| good	32.097 \| good	0.936 \| good	13.549 \| good	0.252 \| good
2025-07-11T08:00:00.000Z	28 \| good	5.314 \| good	13.804 \| good	30.14 \| good	0.933 \| good	11.559 \| good	0.252 \| good
2025-07-11T09:00:00.000Z	27 \| good	4.998 \| good	11.183 \| good	23.413 \| good	0.904 \| good	8.816 \| good	0.23 \| good
2025-07-11T10:00:00.000Z	27 \| good	4.951 \| good	22.864 \| good	24.771 \| good	0.853 \| good	8.053 \| good	0.262 \| good
2025-07-11T11:00:00.000Z	29 \| good	4.678 \| good	12.152 \| good	30.905 \| good	0.796 \| good	7.586 \| good	0.297 \| good
2025-07-11T12:00:00.000Z	49 \| good	8.89 \| good	40.16 \| good	34.558 \| good	0.226 \| good	8.052 \| good	0.307 \| good
2025-07-11T13:00:00.000Z	44 \| good	7.55 \| good	29.494 \| good	30.187 \| good	0.296 \| good	5.747 \| good	0.333 \| good
2025-07-11T14:00:00.000Z	33 \| good	6.335 \| good	14.963 \| good	34.031 \| good	0.315 \| good	7.45 \| good	0.373 \| good
2025-07-11T15:00:00.000Z	38 \| good	6.675 \| good	27.99 \| good	34.487 \| good	0.304 \| good	4.73 \| good	0.353 \| good
2025-07-11T16:00:00.000Z	38 \| good	5.237 \| good	23.916 \| good	40.967 \| good	0.295 \| good	3.238 \| good	0.378 \| good
2025-07-11T17:00:00.000Z	49 \| good	8.806 \| good	20.879 \| good	41.93 \| good	0.484 \| good	5.458 \| good	0.342 \| good
2025-07-11T18:00:00.000Z	44 \| good	8.299 \| good	21.004 \| good	43.821 \| good	0.334 \| good	4.438 \| good	0.428 \| good
2025-07-11T18:00:00.000Z	44 \| good	8.299 \| good	21.004 \| good	43.821 \| good	0.334 \| good	4.438 \| good	0.428 \| good
2025-07-10T07:00:00.000Z	49 \| good	9.238 \| good	40.894 \| good	21.898 \| good	1.296 \| good	12.093 \| good	0.285 \| good
2025-07-10T08:00:00.000Z	49 \| good	8.87 \| good	39.032 \| good	17.007 \| good	1.311 \| good	11.659 \| good	0.279 \| good
2025-07-10T09:00:00.000Z	38 \| good	6.994 \| good	30.792 \| good	14.753 \| good	1.327 \| good	11.225 \| good	0.274 \| good
2025-07-10T10:00:00.000Z	38 \| good	6.849 \| good	30.023 \| good	13.12 \| good	1.493 \| good	10.61 \| good	0.263 \| good
2025-07-10T11:00:00.000Z	49 \| good	9.167 \| good	41.01 \| good	18.919 \| good	1.659 \| good	9.996 \| good	0.253 \| good
2025-07-10T12:00:00.000Z	49 \| good	9.308 \| good	41.456 \| good	28.579 \| good	1.825 \| good	9.381 \| good	0.243 \| good
2025-07-10T13:00:00.000Z	52 \| moderate	10.376 \| good	45.654 \| good	32.247 \| good	1.783 \| good	9.861 \| good	0.241 \| good
2025-07-10T14:00:00.000Z	56 \| moderate	12.399 \| fine	55.926 \| fine	39.417 \| good	1.741 \| good	10.341 \| good	0.239 \| good
2025-07-10T15:00:00.000Z	58 \| moderate	13.344 \| fine	59.806 \| fine	51.837 \| good	1.698 \| good	10.821 \| good	0.236 \| good
2025-07-10T16:00:00.000Z	84 \| moderate	13.622 \| fine	61.467 \| fine	65.483 \| fine	1.63 \| good	9.832 \| good	0.233 \| good
2025-07-10T17:00:00.000Z	119 \| sensitive	14.262 \| fine	63.565 \| fine	76.078 \| moderate	1.561 \| good	8.843 \| good	0.23 \| good
2025-07-10T18:00:00.000Z	133 \| sensitive	14.502 \| fine	64.165 \| fine	80.135 \| moderate	1.493 \| good	7.854 \| good	0.227 \| good
2025-07-10T19:00:00.000Z	119 \| sensitive	14.546 \| fine	64.371 \| fine	76.251 \| moderate	1.505 \| good	8.053 \| good	0.228 \| good
2025-07-10T20:00:00.000Z	112 \| sensitive	15.334 \| fine	68.082 \| fine	74.228 \| moderate	1.517 \| good	8.252 \| good	0.228 \| good
2025-07-10T21:00:00.000Z	119 \| sensitive	14.202 \| fine	63.853 \| fine	75.608 \| moderate	1.529 \| good	8.45 \| good	0.229 \| good
2025-07-10T22:00:00.000Z	87 \| moderate	12.858 \| fine	58.019 \| fine	66.029 \| fine	1.593 \| good	9.953 \| good	0.238 \| good
2025-07-10T23:00:00.000Z	58 \| moderate	9.868 \| good	43.845 \| good	56.81 \| fine	1.658 \| good	11.457 \| good	0.247 \| good
2025-07-11T00:00:00.000Z	44 \| good	7.877 \| good	34.272 \| good	45.364 \| good	1.722 \| good	12.96 \| good	0.256 \| good
2025-07-11T01:00:00.000Z	44 \| good	7.832 \| good	34.094 \| good	40.015 \| good	1.871 \| good	14.503 \| good	0.263 \| good
2025-07-11T02:00:00.000Z	38 \| good	7.056 \| good	30.901 \| good	35.637 \| good	2.019 \| good	16.047 \| good	0.27 \| good
2025-07-11T03:00:00.000Z	32 \| good	5.488 \| good	23.364 \| good	34.853 \| good	2.167 \| good	17.59 \| good	0.277 \| good
2025-07-11T04:00:00.000Z	31 \| good	3.92 \| good	16.908 \| good	32.722 \| good	2.31 \| good	18.249 \| good	0.284 \| good
2025-07-11T05:00:00.000Z	28 \| good	3.7 \| good	15.983 \| good	30.232 \| good	2.452 \| good	18.908 \| good	0.292 \| good
2025-07-11T06:00:00.000Z	26 \| good	3.82 \| good	16.866 \| good	27.847 \| good	2.595 \| good	19.568 \| good	0.299 \| good
2025-07-11T07:00:00.000Z	25 \| good	3.207 \| good	13.917 \| good	27.077 \| good	2.447 \| good	18.774 \| good	0.303 \| good
2025-07-11T08:00:00.000Z	27 \| good	3.135 \| good	13.9 \| good	28.931 \| good	2.299 \| good	17.981 \| good	0.306 \| good
2025-07-11T09:00:00.000Z	31 \| good	4.351 \| good	18.996 \| good	34.09 \| good	2.151 \| good	17.188 \| good	0.31 \| good
2025-07-11T10:00:00.000Z	30 \| good	4.42 \| good	19.157 \| good	32.115 \| good	2.173 \| good	14.23 \| good	0.295 \| good
2025-07-11T11:00:00.000Z	31 \| good	5.07 \| good	21.879 \| good	33.316 \| good	2.195 \| good	11.272 \| good	0.28 \| good
2025-07-11T12:00:00.000Z	33 \| good	6.097 \| good	26.741 \| good	29.83 \| good	2.217 \| good	8.314 \| good	0.265 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.543 \| good	29.548 \| good	32.2 \| good	1.818 \| good	7.124 \| good	0.257 \| good
2025-07-11T14:00:00.000Z	33 \| good	6.117 \| good	26.701 \| good	36.176 \| good	1.418 \| good	5.934 \| good	0.249 \| good
2025-07-11T15:00:00.000Z	42 \| good	5.902 \| good	26.473 \| good	45.164 \| good	1.019 \| good	4.744 \| good	0.24 \| good
2025-07-11T16:00:00.000Z	46 \| good	5.429 \| good	23.65 \| good	50.413 \| good	0.963 \| good	4.015 \| good	0.238 \| good
2025-07-11T17:00:00.000Z	51 \| moderate	5.583 \| good	23.911 \| good	55.411 \| fine	0.908 \| good	3.286 \| good	0.235 \| good
2025-07-11T18:00:00.000Z	61 \| moderate	5.884 \| good	26.268 \| good	58.356 \| fine	0.852 \| good	2.557 \| good	0.232 \| good
2025-07-11T19:00:00.000Z	50 \| good	5.462 \| good	23.668 \| good	54.239 \| good	0.913 \| good	2.74 \| good	0.234 \| good
2025-07-11T20:00:00.000Z	50 \| good	5.078 \| good	21.782 \| good	53.547 \| good	0.975 \| good	2.922 \| good	0.235 \| good
2025-07-11T21:00:00.000Z	49 \| good	5.745 \| good	24.678 \| good	52.906 \| good	1.036 \| good	3.104 \| good	0.236 \| good
2025-07-11T22:00:00.000Z	45 \| good	6.222 \| good	27.473 \| good	48.774 \| good	1.145 \| good	5.407 \| good	0.252 \| good
2025-07-11T23:00:00.000Z	44 \| good	7.437 \| good	32.719 \| good	47.029 \| good	1.254 \| good	7.71 \| good	0.269 \| good
2025-07-12T00:00:00.000Z	32 \| good	4.98 \| good	21.765 \| good	35.042 \| good	1.363 \| good	10.013 \| good	0.286 \| good
2025-07-12T01:00:00.000Z	27 \| good	4.565 \| good	19.955 \| good	27.892 \| good	1.451 \| good	11.05 \| good	0.292 \| good
2025-07-12T02:00:00.000Z	25 \| good	4.199 \| good	18.788 \| good	27.466 \| good	1.538 \| good	12.088 \| good	0.297 \| good
2025-07-12T03:00:00.000Z	27 \| good	4.652 \| good	20.078 \| good	27.41 \| good	1.626 \| good	13.126 \| good	0.303 \| good
2025-07-12T04:00:00.000Z	27 \| good	4.614 \| good	19.918 \| good	24.15 \| good	1.688 \| good	13.327 \| good	0.301 \| good
2025-07-12T05:00:00.000Z	22 \| good	3.886 \| good	16.843 \| good	22.08 \| good	1.751 \| good	13.529 \| good	0.298 \| good
2025-07-12T06:00:00.000Z	69 \| moderate	18.759 \| fine	19.257 \| good	45.513 \| good	1.849 \| good	13.89 \| good	0.297 \| good

Darien

Empower business decisions with accurate air quality data

Darien, Connecticut air quality map: Real-time AQI near you

0.29ppm

How accurate is Connecticut, USA air quality data?

Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How frequently is the air quality data for Darien, Connecticut updated?

Air quality data for Darien, Connecticut is updated on an hourly basis.

When did Darien, Connecticut experience the worst air quality in the last 24 hours?

The worst air quality in Darien, Connecticut was recorded at 08:00:00 on 2025-07-09.

When did Darien, Connecticut have its best air quality in the last 24 hours?

The best air quality in Darien, Connecticut was recorded at 07:00:00 on 2025-07-09.

What is the real-time air quality index for Darien, Connecticut?

The real-time air quality index in Darien, Connecticut is 44, currently categorized as Good.

Which pollutant is found most often in Darien, Connecticut?

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

What can I do if the air quality in Darien, Connecticut is poor?

If the air quality in Darien, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Darien, Connecticut?

The measured PM_2.5 levels in Darien, Connecticut at present are 7.863 μg/m³.

What are the current PM₁₀ levels at Darien, Connecticut?

The current PM₁₀ levels in Darien, Connecticut are 16.018 μg/m³.

What are the current carbon monoxide (CO) levels at Darien, Connecticut?

The current carbon monoxide (CO) level in Darien, Connecticut is 0.236 ppm.

What are the current sulfur dioxide (SO₂) levels at Darien, Connecticut?

The current sulfur dioxide (SO₂) levels in Darien, Connecticut are 1 ppb.

What are the current ozone (O₃) levels at Darien, Connecticut?

The current ozone (O₃) levels at Darien, Connecticut is 26.07 ppm.

What are the current nitrogen dioxide (NO₂) levels at Darien, Connecticut?

The current nitrogen dioxide (NO₂) levels at Darien, Connecticut is 10.679 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-09T19:00:00.000Z	43 \| good	6.923 \| good	31.31 \| good	46.375 \| good	0.509 \| good	5.608 \| good	0.317 \| good
2025-07-09T20:00:00.000Z	52 \| moderate	10.192 \| good	45.903 \| good	43.093 \| good	0.428 \| good	4.003 \| good	0.276 \| good
2025-07-09T21:00:00.000Z	43 \| good	6.949 \| good	38.434 \| good	45.832 \| good	0.649 \| good	2.601 \| good	0.276 \| good
2025-07-09T22:00:00.000Z	45 \| good	6.56 \| good	49.144 \| good	47.014 \| good	1.419 \| good	4.903 \| good	0.276 \| good
2025-07-09T23:00:00.000Z	44 \| good	7.641 \| good	34.32 \| good	44.932 \| good	1.363 \| good	6.086 \| good	0.297 \| good
2025-07-10T00:00:00.000Z	41 \| good	4.893 \| good	25.732 \| good	43.509 \| good	0.774 \| good	8.107 \| good	0.298 \| good
2025-07-10T01:00:00.000Z	44 \| good	6.85 \| good	33.424 \| good	47.337 \| good	0.818 \| good	5.7 \| good	0.359 \| good
2025-07-10T02:00:00.000Z	45 \| good	7.765 \| good	36.888 \| good	48.986 \| good	0.68 \| good	5.509 \| good	0.339 \| good
2025-07-10T03:00:00.000Z	41 \| good	6.67 \| good	34.562 \| good	43.763 \| good	0.66 \| good	7.758 \| good	0.319 \| good
2025-07-10T04:00:00.000Z	44 \| good	8.259 \| good	25.993 \| good	40.073 \| good	0.887 \| good	6.615 \| good	0.319 \| good
2025-07-10T05:00:00.000Z	49 \| good	8.65 \| good	20.454 \| good	32.684 \| good	0.755 \| good	11.321 \| good	0.277 \| good
2025-07-10T06:00:00.000Z	44 \| good	7.863 \| good	16.018 \| good	26.07 \| good	1 \| good	10.679 \| good	0.236 \| good
2025-07-10T07:00:00.000Z	33 \| good	6.398 \| good	24.591 \| good	29.123 \| good	0.812 \| good	12.792 \| good	0.252 \| good
2025-07-10T08:00:00.000Z	38 \| good	6.518 \| good	21.229 \| good	26.357 \| good	0.823 \| good	9.669 \| good	0.236 \| good
2025-07-10T09:00:00.000Z	38 \| good	6.964 \| good	28.446 \| good	23.614 \| good	0.461 \| good	10.932 \| good	0.236 \| good
2025-07-10T10:00:00.000Z	22 \| good	3.596 \| good	15.36 \| good	22.891 \| good	0.524 \| good	13.035 \| good	0.216 \| good
2025-07-10T11:00:00.000Z	27 \| good	4.594 \| good	17.495 \| good	27.286 \| good	0.354 \| good	6.767 \| good	0.261 \| good
2025-07-10T12:00:00.000Z	33 \| good	5.584 \| good	17.407 \| good	33.335 \| good	0.287 \| good	8.135 \| good	0.296 \| good
2025-07-10T13:00:00.000Z	33 \| good	6.366 \| good	28.449 \| good	25.041 \| good	0.534 \| good	6.863 \| good	0.345 \| good
2025-07-10T14:00:00.000Z	44 \| good	8.45 \| good	37.07 \| good	29.773 \| good	0.538 \| good	7.766 \| good	0.363 \| good
2025-07-10T15:00:00.000Z	44 \| good	8.358 \| good	32.395 \| good	31.823 \| good	0.66 \| good	5.973 \| good	0.383 \| good
2025-07-10T16:00:00.000Z	33 \| good	5.867 \| good	27.705 \| good	33.545 \| good	0.776 \| good	7.85 \| good	0.399 \| good
2025-07-10T17:00:00.000Z	40 \| good	5.395 \| good	24.417 \| good	42.653 \| good	0.464 \| good	15.861 \| good	0.418 \| good
2025-07-10T18:00:00.000Z	49 \| good	9.21 \| good	45.556 \| good	41.385 \| good	0.507 \| good	17.984 \| good	0.435 \| good
2025-07-10T19:00:00.000Z	42 \| good	6.471 \| good	34.281 \| good	44.607 \| good	0.333 \| good	13.925 \| good	0.454 \| good
2025-07-10T20:00:00.000Z	46 \| good	5.156 \| good	18.262 \| good	49.799 \| good	0.16 \| good	11.003 \| good	0.389 \| good
2025-07-10T21:00:00.000Z	45 \| good	5.75 \| good	16.698 \| good	49.392 \| good	0.13 \| good	8.096 \| good	0.391 \| good
2025-07-10T22:00:00.000Z	49 \| good	4.404 \| good	17.482 \| good	52.625 \| good	0.12 \| good	2.507 \| good	0.418 \| good
2025-07-10T23:00:00.000Z	58 \| moderate	4.597 \| good	14.3 \| good	56.517 \| fine	0.213 \| good	9.014 \| good	0.358 \| good
2025-07-11T00:00:00.000Z	46 \| good	4.7 \| good	21.354 \| good	49.864 \| good	0.295 \| good	10.904 \| good	0.378 \| good
2025-07-11T01:00:00.000Z	43 \| good	5.504 \| good	24.438 \| good	46.274 \| good	0.371 \| good	9.109 \| good	0.353 \| good
2025-07-11T02:00:00.000Z	40 \| good	5.808 \| good	20.093 \| good	42.88 \| good	0.64 \| good	8.805 \| good	0.333 \| good
2025-07-11T03:00:00.000Z	37 \| good	5.702 \| good	12.273 \| good	40.493 \| good	0.9 \| good	5.218 \| good	0.349 \| good
2025-07-11T04:00:00.000Z	34 \| good	4.842 \| good	14.451 \| good	37.045 \| good	0.93 \| good	10.775 \| good	0.358 \| good
2025-07-11T05:00:00.000Z	29 \| good	4.926 \| good	15.877 \| good	31.052 \| good	0.939 \| good	14.472 \| good	0.338 \| good
2025-07-11T06:00:00.000Z	27 \| good	4.96 \| good	12.056 \| good	27.701 \| good	0.984 \| good	11.53 \| good	0.313 \| good
2025-07-11T07:00:00.000Z	30 \| good	4.632 \| good	13.043 \| good	32.097 \| good	0.936 \| good	13.549 \| good	0.252 \| good
2025-07-11T08:00:00.000Z	28 \| good	5.314 \| good	13.804 \| good	30.14 \| good	0.933 \| good	11.559 \| good	0.252 \| good
2025-07-11T09:00:00.000Z	27 \| good	4.998 \| good	11.183 \| good	23.413 \| good	0.904 \| good	8.816 \| good	0.23 \| good
2025-07-11T10:00:00.000Z	27 \| good	4.951 \| good	22.864 \| good	24.771 \| good	0.853 \| good	8.053 \| good	0.262 \| good
2025-07-11T11:00:00.000Z	29 \| good	4.678 \| good	12.152 \| good	30.905 \| good	0.796 \| good	7.586 \| good	0.297 \| good
2025-07-11T12:00:00.000Z	49 \| good	8.89 \| good	40.16 \| good	34.558 \| good	0.226 \| good	8.052 \| good	0.307 \| good
2025-07-11T13:00:00.000Z	44 \| good	7.55 \| good	29.494 \| good	30.187 \| good	0.296 \| good	5.747 \| good	0.333 \| good
2025-07-11T14:00:00.000Z	33 \| good	6.335 \| good	14.963 \| good	34.031 \| good	0.315 \| good	7.45 \| good	0.373 \| good
2025-07-11T15:00:00.000Z	38 \| good	6.675 \| good	27.99 \| good	34.487 \| good	0.304 \| good	4.73 \| good	0.353 \| good
2025-07-11T16:00:00.000Z	38 \| good	5.237 \| good	23.916 \| good	40.967 \| good	0.295 \| good	3.238 \| good	0.378 \| good
2025-07-11T17:00:00.000Z	49 \| good	8.806 \| good	20.879 \| good	41.93 \| good	0.484 \| good	5.458 \| good	0.342 \| good
2025-07-11T18:00:00.000Z	44 \| good	8.299 \| good	21.004 \| good	43.821 \| good	0.334 \| good	4.438 \| good	0.428 \| good
2025-07-11T18:00:00.000Z	44 \| good	8.299 \| good	21.004 \| good	43.821 \| good	0.334 \| good	4.438 \| good	0.428 \| good
2025-07-10T07:00:00.000Z	49 \| good	9.238 \| good	40.894 \| good	21.898 \| good	1.296 \| good	12.093 \| good	0.285 \| good
2025-07-10T08:00:00.000Z	49 \| good	8.87 \| good	39.032 \| good	17.007 \| good	1.311 \| good	11.659 \| good	0.279 \| good
2025-07-10T09:00:00.000Z	38 \| good	6.994 \| good	30.792 \| good	14.753 \| good	1.327 \| good	11.225 \| good	0.274 \| good
2025-07-10T10:00:00.000Z	38 \| good	6.849 \| good	30.023 \| good	13.12 \| good	1.493 \| good	10.61 \| good	0.263 \| good
2025-07-10T11:00:00.000Z	49 \| good	9.167 \| good	41.01 \| good	18.919 \| good	1.659 \| good	9.996 \| good	0.253 \| good
2025-07-10T12:00:00.000Z	49 \| good	9.308 \| good	41.456 \| good	28.579 \| good	1.825 \| good	9.381 \| good	0.243 \| good
2025-07-10T13:00:00.000Z	52 \| moderate	10.376 \| good	45.654 \| good	32.247 \| good	1.783 \| good	9.861 \| good	0.241 \| good
2025-07-10T14:00:00.000Z	56 \| moderate	12.399 \| fine	55.926 \| fine	39.417 \| good	1.741 \| good	10.341 \| good	0.239 \| good
2025-07-10T15:00:00.000Z	58 \| moderate	13.344 \| fine	59.806 \| fine	51.837 \| good	1.698 \| good	10.821 \| good	0.236 \| good
2025-07-10T16:00:00.000Z	84 \| moderate	13.622 \| fine	61.467 \| fine	65.483 \| fine	1.63 \| good	9.832 \| good	0.233 \| good
2025-07-10T17:00:00.000Z	119 \| sensitive	14.262 \| fine	63.565 \| fine	76.078 \| moderate	1.561 \| good	8.843 \| good	0.23 \| good
2025-07-10T18:00:00.000Z	133 \| sensitive	14.502 \| fine	64.165 \| fine	80.135 \| moderate	1.493 \| good	7.854 \| good	0.227 \| good
2025-07-10T19:00:00.000Z	119 \| sensitive	14.546 \| fine	64.371 \| fine	76.251 \| moderate	1.505 \| good	8.053 \| good	0.228 \| good
2025-07-10T20:00:00.000Z	112 \| sensitive	15.334 \| fine	68.082 \| fine	74.228 \| moderate	1.517 \| good	8.252 \| good	0.228 \| good
2025-07-10T21:00:00.000Z	119 \| sensitive	14.202 \| fine	63.853 \| fine	75.608 \| moderate	1.529 \| good	8.45 \| good	0.229 \| good
2025-07-10T22:00:00.000Z	87 \| moderate	12.858 \| fine	58.019 \| fine	66.029 \| fine	1.593 \| good	9.953 \| good	0.238 \| good
2025-07-10T23:00:00.000Z	58 \| moderate	9.868 \| good	43.845 \| good	56.81 \| fine	1.658 \| good	11.457 \| good	0.247 \| good
2025-07-11T00:00:00.000Z	44 \| good	7.877 \| good	34.272 \| good	45.364 \| good	1.722 \| good	12.96 \| good	0.256 \| good
2025-07-11T01:00:00.000Z	44 \| good	7.832 \| good	34.094 \| good	40.015 \| good	1.871 \| good	14.503 \| good	0.263 \| good
2025-07-11T02:00:00.000Z	38 \| good	7.056 \| good	30.901 \| good	35.637 \| good	2.019 \| good	16.047 \| good	0.27 \| good
2025-07-11T03:00:00.000Z	32 \| good	5.488 \| good	23.364 \| good	34.853 \| good	2.167 \| good	17.59 \| good	0.277 \| good
2025-07-11T04:00:00.000Z	31 \| good	3.92 \| good	16.908 \| good	32.722 \| good	2.31 \| good	18.249 \| good	0.284 \| good
2025-07-11T05:00:00.000Z	28 \| good	3.7 \| good	15.983 \| good	30.232 \| good	2.452 \| good	18.908 \| good	0.292 \| good
2025-07-11T06:00:00.000Z	26 \| good	3.82 \| good	16.866 \| good	27.847 \| good	2.595 \| good	19.568 \| good	0.299 \| good
2025-07-11T07:00:00.000Z	25 \| good	3.207 \| good	13.917 \| good	27.077 \| good	2.447 \| good	18.774 \| good	0.303 \| good
2025-07-11T08:00:00.000Z	27 \| good	3.135 \| good	13.9 \| good	28.931 \| good	2.299 \| good	17.981 \| good	0.306 \| good
2025-07-11T09:00:00.000Z	31 \| good	4.351 \| good	18.996 \| good	34.09 \| good	2.151 \| good	17.188 \| good	0.31 \| good
2025-07-11T10:00:00.000Z	30 \| good	4.42 \| good	19.157 \| good	32.115 \| good	2.173 \| good	14.23 \| good	0.295 \| good
2025-07-11T11:00:00.000Z	31 \| good	5.07 \| good	21.879 \| good	33.316 \| good	2.195 \| good	11.272 \| good	0.28 \| good
2025-07-11T12:00:00.000Z	33 \| good	6.097 \| good	26.741 \| good	29.83 \| good	2.217 \| good	8.314 \| good	0.265 \| good
2025-07-11T13:00:00.000Z	38 \| good	6.543 \| good	29.548 \| good	32.2 \| good	1.818 \| good	7.124 \| good	0.257 \| good
2025-07-11T14:00:00.000Z	33 \| good	6.117 \| good	26.701 \| good	36.176 \| good	1.418 \| good	5.934 \| good	0.249 \| good
2025-07-11T15:00:00.000Z	42 \| good	5.902 \| good	26.473 \| good	45.164 \| good	1.019 \| good	4.744 \| good	0.24 \| good
2025-07-11T16:00:00.000Z	46 \| good	5.429 \| good	23.65 \| good	50.413 \| good	0.963 \| good	4.015 \| good	0.238 \| good
2025-07-11T17:00:00.000Z	51 \| moderate	5.583 \| good	23.911 \| good	55.411 \| fine	0.908 \| good	3.286 \| good	0.235 \| good
2025-07-11T18:00:00.000Z	61 \| moderate	5.884 \| good	26.268 \| good	58.356 \| fine	0.852 \| good	2.557 \| good	0.232 \| good
2025-07-11T19:00:00.000Z	50 \| good	5.462 \| good	23.668 \| good	54.239 \| good	0.913 \| good	2.74 \| good	0.234 \| good
2025-07-11T20:00:00.000Z	50 \| good	5.078 \| good	21.782 \| good	53.547 \| good	0.975 \| good	2.922 \| good	0.235 \| good
2025-07-11T21:00:00.000Z	49 \| good	5.745 \| good	24.678 \| good	52.906 \| good	1.036 \| good	3.104 \| good	0.236 \| good
2025-07-11T22:00:00.000Z	45 \| good	6.222 \| good	27.473 \| good	48.774 \| good	1.145 \| good	5.407 \| good	0.252 \| good
2025-07-11T23:00:00.000Z	44 \| good	7.437 \| good	32.719 \| good	47.029 \| good	1.254 \| good	7.71 \| good	0.269 \| good
2025-07-12T00:00:00.000Z	32 \| good	4.98 \| good	21.765 \| good	35.042 \| good	1.363 \| good	10.013 \| good	0.286 \| good
2025-07-12T01:00:00.000Z	27 \| good	4.565 \| good	19.955 \| good	27.892 \| good	1.451 \| good	11.05 \| good	0.292 \| good
2025-07-12T02:00:00.000Z	25 \| good	4.199 \| good	18.788 \| good	27.466 \| good	1.538 \| good	12.088 \| good	0.297 \| good
2025-07-12T03:00:00.000Z	27 \| good	4.652 \| good	20.078 \| good	27.41 \| good	1.626 \| good	13.126 \| good	0.303 \| good
2025-07-12T04:00:00.000Z	27 \| good	4.614 \| good	19.918 \| good	24.15 \| good	1.688 \| good	13.327 \| good	0.301 \| good
2025-07-12T05:00:00.000Z	22 \| good	3.886 \| good	16.843 \| good	22.08 \| good	1.751 \| good	13.529 \| good	0.298 \| good
2025-07-12T06:00:00.000Z	69 \| moderate	18.759 \| fine	19.257 \| good	45.513 \| good	1.849 \| good	13.89 \| good	0.297 \| good

Live air quality index in Darien, Connecticut today

Major air pollutants in Darien, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Darien, Connecticut air quality forecast and history

Empower business decisions with accurate air quality data

Darien, Connecticut air quality map: Real-time AQI near you

Air quality in nearby cities

Stamford, Connecticut

Norwalk, Connecticut

New Canaan, Connecticut

Westport, Connecticut

Wilton, Connecticut

Greenwich, Connecticut

How accurate is Connecticut, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Darien, Connecticut updated?

When did Darien, Connecticut experience the worst air quality in the last 24 hours?

When did Darien, Connecticut have its best air quality in the last 24 hours?

What is the real-time air quality index for Darien, Connecticut?

Which pollutant is found most often in Darien, Connecticut?

What can I do if the air quality in Darien, Connecticut is poor?

What are the current PM2.5 levels in Darien, Connecticut?

What are the current PM10 levels at Darien, Connecticut?

What are the current carbon monoxide (CO) levels at Darien, Connecticut?

What are the current sulfur dioxide (SO2) levels at Darien, Connecticut?

What are the current ozone (O3) levels at Darien, Connecticut?

What are the current nitrogen dioxide (NO2) levels at Darien, Connecticut?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Darien, Connecticut?

What are the current PM₁₀ levels at Darien, Connecticut?

What are the current sulfur dioxide (SO₂) levels at Darien, Connecticut?

What are the current ozone (O₃) levels at Darien, Connecticut?

What are the current nitrogen dioxide (NO₂) levels at Darien, Connecticut?