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

The current PM10 concentration at Ledyard, Connecticut is 10.811 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Ledyard, Connecticut is 0.326 ppb.

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

The current ozone (O3) concentration at Ledyard, Connecticut is 31.131 ppm.

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

The current nitrogen dioxide (NO2) concentration at Ledyard, Connecticut is 3.791 ppb.

Ledyard, Connecticut live air quality index now

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

Stay updated with real-time air quality in Ledyard, 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

Ledyard, Connecticut

Last updated: ... (Local time)

Major air pollutants in Ledyard, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.09 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

10.81 μg/m³

155

255

425

605+

Ozone (O₃)

31.13 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.79 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Ledyard, Connecticut

Get Live Pollen Counts

Ledyard, Connecticut

Scroll To Air Quality Map

Track live Ledyard, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-12T03:00:00.000Z	38 \| good	7.154 \| good	31.712 \| good	23.27 \| good	0.721 \| good	14.22 \| good	0.312 \| good
2025-09-12T04:00:00.000Z	27 \| good	4.666 \| good	11.533 \| good	24.953 \| good	0.219 \| good	16.595 \| good	0.475 \| good
2025-09-12T05:00:00.000Z	22 \| good	4.456 \| good	11.575 \| good	23.904 \| good	0.189 \| good	12.234 \| good	0.423 \| good
2025-09-12T06:00:00.000Z	27 \| good	4.72 \| good	12.116 \| good	21.269 \| good	0.284 \| good	9.85 \| good	0.352 \| good
2025-09-12T07:00:00.000Z	27 \| good	4.697 \| good	12.185 \| good	19.493 \| good	0.245 \| good	11.401 \| good	0.352 \| good
2025-09-12T08:00:00.000Z	27 \| good	5.389 \| good	14.86 \| good	18.789 \| good	0.245 \| good	8.123 \| good	0.213 \| good
2025-09-12T09:00:00.000Z	27 \| good	4.944 \| good	11.874 \| good	18.432 \| good	0.172 \| good	10.322 \| good	0.243 \| good
2025-09-12T10:00:00.000Z	27 \| good	5.084 \| good	11.917 \| good	19.494 \| good	0.26 \| good	9.513 \| good	0.31 \| good
2025-09-12T11:00:00.000Z	27 \| good	5.054 \| good	11.342 \| good	21.493 \| good	0.291 \| good	10.22 \| good	0.34 \| good
2025-09-12T12:00:00.000Z	27 \| good	5.22 \| good	12.939 \| good	20.496 \| good	0.193 \| good	14.033 \| good	0.34 \| good
2025-09-12T13:00:00.000Z	27 \| good	5.255 \| good	13.033 \| good	21.719 \| good	0.208 \| good	8.022 \| good	0.281 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.294 \| good	12.455 \| good	23.188 \| good	0.203 \| good	6.032 \| good	0.226 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.354 \| good	13.458 \| good	24.906 \| good	0.257 \| good	4.124 \| good	0.228 \| good
2025-09-12T16:00:00.000Z	33 \| good	5.548 \| good	14.658 \| good	25.372 \| good	0.25 \| good	3.474 \| good	0.208 \| good
2025-09-12T17:00:00.000Z	33 \| good	5.58 \| good	14.377 \| good	30.101 \| good	0.181 \| good	3.048 \| good	0.184 \| good
2025-09-12T18:00:00.000Z	31 \| good	5.423 \| good	13.403 \| good	33.932 \| good	0.193 \| good	2.306 \| good	0.183 \| good
2025-09-12T19:00:00.000Z	33 \| good	5.544 \| good	13.639 \| good	35.842 \| good	0.206 \| good	2.771 \| good	0.209 \| good
2025-09-12T20:00:00.000Z	33 \| good	5.611 \| good	14.099 \| good	36.299 \| good	0.215 \| good	3.022 \| good	0.182 \| good
2025-09-12T21:00:00.000Z	33 \| good	5.534 \| good	14.421 \| good	36.067 \| good	0.198 \| good	3.404 \| good	0.2 \| good
2025-09-12T22:00:00.000Z	33 \| good	5.489 \| good	14.329 \| good	35.711 \| good	0.219 \| good	3.318 \| good	0.2 \| good
2025-09-12T23:00:00.000Z	32 \| good	5.474 \| good	14.807 \| good	35.453 \| good	0.178 \| good	2.786 \| good	0.223 \| good
2025-09-13T00:00:00.000Z	31 \| good	5.248 \| good	14.884 \| good	33.586 \| good	0.184 \| good	3.429 \| good	0.237 \| good
2025-09-13T01:00:00.000Z	28 \| good	5.041 \| good	14.661 \| good	29.944 \| good	0.298 \| good	3.356 \| good	0.254 \| good
2025-09-13T02:00:00.000Z	27 \| good	4.847 \| good	13.688 \| good	28.413 \| good	0.239 \| good	3.406 \| good	0.242 \| good
2025-09-13T03:00:00.000Z	24 \| good	4.48 \| good	12.786 \| good	26.463 \| good	0.222 \| good	3.872 \| good	0.285 \| good
2025-09-13T04:00:00.000Z	24 \| good	4.266 \| good	11.467 \| good	26.186 \| good	0.235 \| good	5.69 \| good	0.403 \| good
2025-09-13T05:00:00.000Z	22 \| good	4.464 \| good	12.193 \| good	22.725 \| good	0.234 \| good	8.839 \| good	0.369 \| good
2025-09-13T06:00:00.000Z	27 \| good	4.589 \| good	11.622 \| good	18.457 \| good	0.255 \| good	10.935 \| good	0.325 \| good
2025-09-13T07:00:00.000Z	27 \| good	4.648 \| good	11.922 \| good	17.93 \| good	0.217 \| good	10.805 \| good	0.347 \| good
2025-09-13T08:00:00.000Z	27 \| good	4.587 \| good	10.994 \| good	11.247 \| good	0.188 \| good	10.504 \| good	0.359 \| good
2025-09-13T09:00:00.000Z	27 \| good	4.923 \| good	11.67 \| good	10.195 \| good	0.257 \| good	8.204 \| good	0.325 \| good
2025-09-13T10:00:00.000Z	27 \| good	5.445 \| good	11.984 \| good	9.198 \| good	0.28 \| good	6.638 \| good	0.354 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.151 \| good	10.931 \| good	9.796 \| good	0.265 \| good	6.211 \| good	0.398 \| good
2025-09-13T12:00:00.000Z	27 \| good	4.957 \| good	9.894 \| good	9.425 \| good	0.176 \| good	5.658 \| good	0.42 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.757 \| good	9.615 \| good	11.067 \| good	0.174 \| good	5.398 \| good	0.326 \| good
2025-09-13T14:00:00.000Z	33 \| good	5.524 \| good	11.957 \| good	14.01 \| good	0.26 \| good	6.193 \| good	0.278 \| good
2025-09-13T15:00:00.000Z	27 \| good	5.118 \| good	12.976 \| good	17.92 \| good	0.174 \| good	4.184 \| good	0.243 \| good
2025-09-13T16:00:00.000Z	27 \| good	4.549 \| good	11.629 \| good	26.318 \| good	0.156 \| good	3.212 \| good	0.243 \| good
2025-09-13T17:00:00.000Z	27 \| good	4.681 \| good	12.192 \| good	28.016 \| good	0.185 \| good	2.242 \| good	0.237 \| good
2025-09-13T18:00:00.000Z	27 \| good	4.649 \| good	12.866 \| good	28.746 \| good	0.194 \| good	3.634 \| good	0.252 \| good
2025-09-13T19:00:00.000Z	32 \| good	4.707 \| good	13.297 \| good	35.136 \| good	0.163 \| good	3.41 \| good	0.22 \| good
2025-09-13T20:00:00.000Z	33 \| good	4.721 \| good	13.028 \| good	36.129 \| good	0.179 \| good	3.691 \| good	0.222 \| good
2025-09-13T21:00:00.000Z	34 \| good	4.308 \| good	12.322 \| good	36.54 \| good	0.221 \| good	4.02 \| good	0.224 \| good
2025-09-13T22:00:00.000Z	32 \| good	4.038 \| good	11.802 \| good	34.507 \| good	0.273 \| good	2.145 \| good	0.224 \| good
2025-09-13T23:00:00.000Z	31 \| good	4.073 \| good	10.748 \| good	32.739 \| good	0.272 \| good	2.63 \| good	0.237 \| good
2025-09-14T00:00:00.000Z	30 \| good	4.091 \| good	11.072 \| good	31.588 \| good	0.267 \| good	3.367 \| good	0.263 \| good
2025-09-14T01:00:00.000Z	29 \| good	4.087 \| good	10.811 \| good	31.131 \| good	0.326 \| good	3.791 \| good	0.269 \| good
2025-09-14T02:00:00.000Z	29 \| good	4.222 \| good	10.557 \| good	30.517 \| good	0.265 \| good	3.83 \| good	0.293 \| good
2025-09-14T02:00:00.000Z	29 \| good	4.087 \| good	10.811 \| good	31.131 \| good	0.326 \| good	3.791 \| good	0.269 \| good
2025-09-14T03:00:00.000Z	22 \| good	4.467 \| good	19.552 \| good	20.586 \| good	0.294 \| good	2.15 \| good	0.143 \| good
2025-09-14T04:00:00.000Z	22 \| good	4.391 \| good	19 \| good	22.42 \| good	0.307 \| good	2.048 \| good	0.142 \| good
2025-09-14T05:00:00.000Z	22 \| good	4.353 \| good	19.081 \| good	23.465 \| good	0.321 \| good	1.945 \| good	0.142 \| good
2025-09-14T06:00:00.000Z	22 \| good	4.427 \| good	19.355 \| good	23.549 \| good	0.335 \| good	1.843 \| good	0.141 \| good
2025-09-14T07:00:00.000Z	22 \| good	4.083 \| good	18.049 \| good	21.547 \| good	0.378 \| good	1.968 \| good	0.141 \| good
2025-09-14T08:00:00.000Z	27 \| good	4.806 \| good	20.941 \| good	21.861 \| good	0.42 \| good	2.092 \| good	0.141 \| good
2025-09-14T09:00:00.000Z	33 \| good	6.296 \| good	27.991 \| good	17.229 \| good	0.462 \| good	2.217 \| good	0.141 \| good
2025-09-14T10:00:00.000Z	27 \| good	5.193 \| good	22.57 \| good	15.984 \| good	0.588 \| good	3.163 \| good	0.149 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.944 \| good	21.623 \| good	12.028 \| good	0.713 \| good	4.109 \| good	0.157 \| good
2025-09-14T12:00:00.000Z	27 \| good	4.71 \| good	20.367 \| good	19.195 \| good	0.838 \| good	5.055 \| good	0.165 \| good
2025-09-14T13:00:00.000Z	38 \| good	6.911 \| good	30.699 \| good	28.978 \| good	1.149 \| good	4.725 \| good	0.172 \| good
2025-09-14T14:00:00.000Z	52 \| moderate	9.971 \| good	44.541 \| good	36.827 \| good	1.46 \| good	4.395 \| good	0.18 \| good
2025-09-14T15:00:00.000Z	54 \| moderate	10.598 \| good	47.076 \| good	41.959 \| good	1.771 \| good	4.066 \| good	0.188 \| good
2025-09-14T16:00:00.000Z	54 \| moderate	11.498 \| good	50.767 \| good	44.088 \| good	1.511 \| good	3.247 \| good	0.185 \| good
2025-09-14T17:00:00.000Z	56 \| moderate	12.028 \| good	53.703 \| good	46.623 \| good	1.252 \| good	2.428 \| good	0.182 \| good
2025-09-14T18:00:00.000Z	56 \| moderate	12.205 \| fine	54.61 \| good	48.275 \| good	0.992 \| good	1.61 \| good	0.18 \| good
2025-09-14T19:00:00.000Z	54 \| moderate	11.219 \| good	49.78 \| good	46.959 \| good	0.842 \| good	1.789 \| good	0.18 \| good
2025-09-14T20:00:00.000Z	56 \| moderate	11.789 \| good	52.372 \| good	45.269 \| good	0.691 \| good	1.969 \| good	0.18 \| good
2025-09-14T21:00:00.000Z	60 \| moderate	14.248 \| fine	64.02 \| fine	46.088 \| good	0.541 \| good	2.149 \| good	0.18 \| good
2025-09-14T22:00:00.000Z	64 \| moderate	16.066 \| fine	71.448 \| fine	47.691 \| good	0.571 \| good	5.3 \| good	0.206 \| good
2025-09-14T23:00:00.000Z	64 \| moderate	15.693 \| fine	69.635 \| fine	41.461 \| good	0.6 \| good	8.451 \| good	0.232 \| good
2025-09-15T00:00:00.000Z	54 \| moderate	10.859 \| good	48.322 \| good	37.042 \| good	0.63 \| good	11.603 \| good	0.258 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	10.248 \| good	45.38 \| good	29.853 \| good	0.664 \| good	10.868 \| good	0.25 \| good
2025-09-15T02:00:00.000Z	54 \| moderate	10.703 \| good	47.454 \| good	26.7 \| good	0.697 \| good	10.133 \| good	0.242 \| good
2025-09-15T03:00:00.000Z	56 \| moderate	12.48 \| fine	56.246 \| fine	28.383 \| good	0.731 \| good	9.398 \| good	0.233 \| good
2025-09-15T04:00:00.000Z	60 \| moderate	13.71 \| fine	61.672 \| fine	24.151 \| good	0.742 \| good	8.224 \| good	0.219 \| good
2025-09-15T05:00:00.000Z	62 \| moderate	14.634 \| fine	65.537 \| fine	24.619 \| good	0.753 \| good	7.051 \| good	0.204 \| good
2025-09-15T06:00:00.000Z	62 \| moderate	15.465 \| fine	69.036 \| fine	25.715 \| good	0.764 \| good	5.877 \| good	0.189 \| good
2025-09-15T07:00:00.000Z	66 \| moderate	16.77 \| fine	74.104 \| fine	23.542 \| good	0.66 \| good	5.871 \| good	0.193 \| good
2025-09-15T08:00:00.000Z	66 \| moderate	16.571 \| fine	73.708 \| fine	24.596 \| good	0.556 \| good	5.865 \| good	0.197 \| good
2025-09-15T09:00:00.000Z	62 \| moderate	14.773 \| fine	65.508 \| fine	26.56 \| good	0.452 \| good	5.86 \| good	0.201 \| good
2025-09-15T10:00:00.000Z	62 \| moderate	14.72 \| fine	65.572 \| fine	25.297 \| good	0.525 \| good	5.833 \| good	0.215 \| good
2025-09-15T11:00:00.000Z	60 \| moderate	13.91 \| fine	62.448 \| fine	23.983 \| good	0.598 \| good	5.806 \| good	0.228 \| good
2025-09-15T12:00:00.000Z	60 \| moderate	13.529 \| fine	60.405 \| fine	28.907 \| good	0.671 \| good	5.779 \| good	0.242 \| good
2025-09-15T13:00:00.000Z	60 \| moderate	13.66 \| fine	61.291 \| fine	31.003 \| good	0.825 \| good	5.013 \| good	0.24 \| good
2025-09-15T14:00:00.000Z	58 \| moderate	13.172 \| fine	59.612 \| fine	34.583 \| good	0.979 \| good	4.247 \| good	0.237 \| good
2025-09-15T15:00:00.000Z	54 \| moderate	10.616 \| good	46.887 \| good	36.504 \| good	1.132 \| good	3.482 \| good	0.235 \| good
2025-09-15T16:00:00.000Z	49 \| good	9.127 \| good	40.321 \| good	39.238 \| good	1.039 \| good	2.87 \| good	0.22 \| good
2025-09-15T17:00:00.000Z	49 \| good	9.27 \| good	41.059 \| good	39.882 \| good	0.945 \| good	2.258 \| good	0.205 \| good
2025-09-15T18:00:00.000Z	54 \| moderate	11.269 \| good	49.616 \| good	44.256 \| good	0.851 \| good	1.646 \| good	0.19 \| good
2025-09-15T19:00:00.000Z	56 \| moderate	11.857 \| good	52.826 \| good	48.182 \| good	0.826 \| good	1.697 \| good	0.187 \| good
2025-09-15T20:00:00.000Z	58 \| moderate	12.862 \| fine	58.087 \| fine	49.018 \| good	0.802 \| good	1.748 \| good	0.184 \| good
2025-09-15T21:00:00.000Z	56 \| moderate	11.538 \| good	51.189 \| good	43.033 \| good	0.778 \| good	1.798 \| good	0.18 \| good
2025-09-15T22:00:00.000Z	52 \| moderate	10.167 \| good	45.229 \| good	39.881 \| good	0.751 \| good	2.933 \| good	0.184 \| good
2025-09-15T23:00:00.000Z	49 \| good	8.974 \| good	39.918 \| good	33.652 \| good	0.724 \| good	4.067 \| good	0.188 \| good
2025-09-16T00:00:00.000Z	54 \| moderate	11.465 \| good	13.542 \| good	51.434 \| good	0.704 \| good	5.336 \| good	0.194 \| good
2025-09-16T01:00:00.000Z	56 \| moderate	12.49 \| fine	56.346 \| fine	23.47 \| good	0.687 \| good	4.834 \| good	0.185 \| good
2025-09-16T02:00:00.000Z	58 \| moderate	13.409 \| fine	60.179 \| fine	19.988 \| good	0.676 \| good	4.468 \| good	0.178 \| good

Ledyard

Get reliable air quality data to drive your business

Ledyard, Connecticut air quality map: Track AQI near you

0.27ppm

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

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 often is the air quality data for Ledyard, Connecticut updated?

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

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

The worst air quality in Ledyard, Connecticut in the last 24 hours was observed at 09:00:00 on 2025-09-13.

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

In the last 24 hrs, the best air quality in Ledyard, Connecticut was observed at 05:00:00 on 2025-09-13.

What is the current air quality in Ledyard, Connecticut?

The current air quality in Ledyard, Connecticut is 29, categorized as Good based on real-time data.

What pollutant is the most common in Ledyard, Connecticut?

The most common pollutant in Ledyard, Connecticut is O3.

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

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

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

The current PM_2.5 concentration at Ledyard, Connecticut is 4.087 μg/m³.

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

The current PM₁₀ concentration at Ledyard, Connecticut is 10.811 μg/m³.

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

The current carbon monoxide (CO) concentration at Ledyard, Connecticut is 0.269 ppm.

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

The current sulfur dioxide (SO₂) concentration at Ledyard, Connecticut is 0.326 ppb.

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

The current ozone (O₃) concentration at Ledyard, Connecticut is 31.131 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Ledyard, Connecticut is 3.791 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-12T03:00:00.000Z	38 \| good	7.154 \| good	31.712 \| good	23.27 \| good	0.721 \| good	14.22 \| good	0.312 \| good
2025-09-12T04:00:00.000Z	27 \| good	4.666 \| good	11.533 \| good	24.953 \| good	0.219 \| good	16.595 \| good	0.475 \| good
2025-09-12T05:00:00.000Z	22 \| good	4.456 \| good	11.575 \| good	23.904 \| good	0.189 \| good	12.234 \| good	0.423 \| good
2025-09-12T06:00:00.000Z	27 \| good	4.72 \| good	12.116 \| good	21.269 \| good	0.284 \| good	9.85 \| good	0.352 \| good
2025-09-12T07:00:00.000Z	27 \| good	4.697 \| good	12.185 \| good	19.493 \| good	0.245 \| good	11.401 \| good	0.352 \| good
2025-09-12T08:00:00.000Z	27 \| good	5.389 \| good	14.86 \| good	18.789 \| good	0.245 \| good	8.123 \| good	0.213 \| good
2025-09-12T09:00:00.000Z	27 \| good	4.944 \| good	11.874 \| good	18.432 \| good	0.172 \| good	10.322 \| good	0.243 \| good
2025-09-12T10:00:00.000Z	27 \| good	5.084 \| good	11.917 \| good	19.494 \| good	0.26 \| good	9.513 \| good	0.31 \| good
2025-09-12T11:00:00.000Z	27 \| good	5.054 \| good	11.342 \| good	21.493 \| good	0.291 \| good	10.22 \| good	0.34 \| good
2025-09-12T12:00:00.000Z	27 \| good	5.22 \| good	12.939 \| good	20.496 \| good	0.193 \| good	14.033 \| good	0.34 \| good
2025-09-12T13:00:00.000Z	27 \| good	5.255 \| good	13.033 \| good	21.719 \| good	0.208 \| good	8.022 \| good	0.281 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.294 \| good	12.455 \| good	23.188 \| good	0.203 \| good	6.032 \| good	0.226 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.354 \| good	13.458 \| good	24.906 \| good	0.257 \| good	4.124 \| good	0.228 \| good
2025-09-12T16:00:00.000Z	33 \| good	5.548 \| good	14.658 \| good	25.372 \| good	0.25 \| good	3.474 \| good	0.208 \| good
2025-09-12T17:00:00.000Z	33 \| good	5.58 \| good	14.377 \| good	30.101 \| good	0.181 \| good	3.048 \| good	0.184 \| good
2025-09-12T18:00:00.000Z	31 \| good	5.423 \| good	13.403 \| good	33.932 \| good	0.193 \| good	2.306 \| good	0.183 \| good
2025-09-12T19:00:00.000Z	33 \| good	5.544 \| good	13.639 \| good	35.842 \| good	0.206 \| good	2.771 \| good	0.209 \| good
2025-09-12T20:00:00.000Z	33 \| good	5.611 \| good	14.099 \| good	36.299 \| good	0.215 \| good	3.022 \| good	0.182 \| good
2025-09-12T21:00:00.000Z	33 \| good	5.534 \| good	14.421 \| good	36.067 \| good	0.198 \| good	3.404 \| good	0.2 \| good
2025-09-12T22:00:00.000Z	33 \| good	5.489 \| good	14.329 \| good	35.711 \| good	0.219 \| good	3.318 \| good	0.2 \| good
2025-09-12T23:00:00.000Z	32 \| good	5.474 \| good	14.807 \| good	35.453 \| good	0.178 \| good	2.786 \| good	0.223 \| good
2025-09-13T00:00:00.000Z	31 \| good	5.248 \| good	14.884 \| good	33.586 \| good	0.184 \| good	3.429 \| good	0.237 \| good
2025-09-13T01:00:00.000Z	28 \| good	5.041 \| good	14.661 \| good	29.944 \| good	0.298 \| good	3.356 \| good	0.254 \| good
2025-09-13T02:00:00.000Z	27 \| good	4.847 \| good	13.688 \| good	28.413 \| good	0.239 \| good	3.406 \| good	0.242 \| good
2025-09-13T03:00:00.000Z	24 \| good	4.48 \| good	12.786 \| good	26.463 \| good	0.222 \| good	3.872 \| good	0.285 \| good
2025-09-13T04:00:00.000Z	24 \| good	4.266 \| good	11.467 \| good	26.186 \| good	0.235 \| good	5.69 \| good	0.403 \| good
2025-09-13T05:00:00.000Z	22 \| good	4.464 \| good	12.193 \| good	22.725 \| good	0.234 \| good	8.839 \| good	0.369 \| good
2025-09-13T06:00:00.000Z	27 \| good	4.589 \| good	11.622 \| good	18.457 \| good	0.255 \| good	10.935 \| good	0.325 \| good
2025-09-13T07:00:00.000Z	27 \| good	4.648 \| good	11.922 \| good	17.93 \| good	0.217 \| good	10.805 \| good	0.347 \| good
2025-09-13T08:00:00.000Z	27 \| good	4.587 \| good	10.994 \| good	11.247 \| good	0.188 \| good	10.504 \| good	0.359 \| good
2025-09-13T09:00:00.000Z	27 \| good	4.923 \| good	11.67 \| good	10.195 \| good	0.257 \| good	8.204 \| good	0.325 \| good
2025-09-13T10:00:00.000Z	27 \| good	5.445 \| good	11.984 \| good	9.198 \| good	0.28 \| good	6.638 \| good	0.354 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.151 \| good	10.931 \| good	9.796 \| good	0.265 \| good	6.211 \| good	0.398 \| good
2025-09-13T12:00:00.000Z	27 \| good	4.957 \| good	9.894 \| good	9.425 \| good	0.176 \| good	5.658 \| good	0.42 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.757 \| good	9.615 \| good	11.067 \| good	0.174 \| good	5.398 \| good	0.326 \| good
2025-09-13T14:00:00.000Z	33 \| good	5.524 \| good	11.957 \| good	14.01 \| good	0.26 \| good	6.193 \| good	0.278 \| good
2025-09-13T15:00:00.000Z	27 \| good	5.118 \| good	12.976 \| good	17.92 \| good	0.174 \| good	4.184 \| good	0.243 \| good
2025-09-13T16:00:00.000Z	27 \| good	4.549 \| good	11.629 \| good	26.318 \| good	0.156 \| good	3.212 \| good	0.243 \| good
2025-09-13T17:00:00.000Z	27 \| good	4.681 \| good	12.192 \| good	28.016 \| good	0.185 \| good	2.242 \| good	0.237 \| good
2025-09-13T18:00:00.000Z	27 \| good	4.649 \| good	12.866 \| good	28.746 \| good	0.194 \| good	3.634 \| good	0.252 \| good
2025-09-13T19:00:00.000Z	32 \| good	4.707 \| good	13.297 \| good	35.136 \| good	0.163 \| good	3.41 \| good	0.22 \| good
2025-09-13T20:00:00.000Z	33 \| good	4.721 \| good	13.028 \| good	36.129 \| good	0.179 \| good	3.691 \| good	0.222 \| good
2025-09-13T21:00:00.000Z	34 \| good	4.308 \| good	12.322 \| good	36.54 \| good	0.221 \| good	4.02 \| good	0.224 \| good
2025-09-13T22:00:00.000Z	32 \| good	4.038 \| good	11.802 \| good	34.507 \| good	0.273 \| good	2.145 \| good	0.224 \| good
2025-09-13T23:00:00.000Z	31 \| good	4.073 \| good	10.748 \| good	32.739 \| good	0.272 \| good	2.63 \| good	0.237 \| good
2025-09-14T00:00:00.000Z	30 \| good	4.091 \| good	11.072 \| good	31.588 \| good	0.267 \| good	3.367 \| good	0.263 \| good
2025-09-14T01:00:00.000Z	29 \| good	4.087 \| good	10.811 \| good	31.131 \| good	0.326 \| good	3.791 \| good	0.269 \| good
2025-09-14T02:00:00.000Z	29 \| good	4.222 \| good	10.557 \| good	30.517 \| good	0.265 \| good	3.83 \| good	0.293 \| good
2025-09-14T02:00:00.000Z	29 \| good	4.087 \| good	10.811 \| good	31.131 \| good	0.326 \| good	3.791 \| good	0.269 \| good
2025-09-14T03:00:00.000Z	22 \| good	4.467 \| good	19.552 \| good	20.586 \| good	0.294 \| good	2.15 \| good	0.143 \| good
2025-09-14T04:00:00.000Z	22 \| good	4.391 \| good	19 \| good	22.42 \| good	0.307 \| good	2.048 \| good	0.142 \| good
2025-09-14T05:00:00.000Z	22 \| good	4.353 \| good	19.081 \| good	23.465 \| good	0.321 \| good	1.945 \| good	0.142 \| good
2025-09-14T06:00:00.000Z	22 \| good	4.427 \| good	19.355 \| good	23.549 \| good	0.335 \| good	1.843 \| good	0.141 \| good
2025-09-14T07:00:00.000Z	22 \| good	4.083 \| good	18.049 \| good	21.547 \| good	0.378 \| good	1.968 \| good	0.141 \| good
2025-09-14T08:00:00.000Z	27 \| good	4.806 \| good	20.941 \| good	21.861 \| good	0.42 \| good	2.092 \| good	0.141 \| good
2025-09-14T09:00:00.000Z	33 \| good	6.296 \| good	27.991 \| good	17.229 \| good	0.462 \| good	2.217 \| good	0.141 \| good
2025-09-14T10:00:00.000Z	27 \| good	5.193 \| good	22.57 \| good	15.984 \| good	0.588 \| good	3.163 \| good	0.149 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.944 \| good	21.623 \| good	12.028 \| good	0.713 \| good	4.109 \| good	0.157 \| good
2025-09-14T12:00:00.000Z	27 \| good	4.71 \| good	20.367 \| good	19.195 \| good	0.838 \| good	5.055 \| good	0.165 \| good
2025-09-14T13:00:00.000Z	38 \| good	6.911 \| good	30.699 \| good	28.978 \| good	1.149 \| good	4.725 \| good	0.172 \| good
2025-09-14T14:00:00.000Z	52 \| moderate	9.971 \| good	44.541 \| good	36.827 \| good	1.46 \| good	4.395 \| good	0.18 \| good
2025-09-14T15:00:00.000Z	54 \| moderate	10.598 \| good	47.076 \| good	41.959 \| good	1.771 \| good	4.066 \| good	0.188 \| good
2025-09-14T16:00:00.000Z	54 \| moderate	11.498 \| good	50.767 \| good	44.088 \| good	1.511 \| good	3.247 \| good	0.185 \| good
2025-09-14T17:00:00.000Z	56 \| moderate	12.028 \| good	53.703 \| good	46.623 \| good	1.252 \| good	2.428 \| good	0.182 \| good
2025-09-14T18:00:00.000Z	56 \| moderate	12.205 \| fine	54.61 \| good	48.275 \| good	0.992 \| good	1.61 \| good	0.18 \| good
2025-09-14T19:00:00.000Z	54 \| moderate	11.219 \| good	49.78 \| good	46.959 \| good	0.842 \| good	1.789 \| good	0.18 \| good
2025-09-14T20:00:00.000Z	56 \| moderate	11.789 \| good	52.372 \| good	45.269 \| good	0.691 \| good	1.969 \| good	0.18 \| good
2025-09-14T21:00:00.000Z	60 \| moderate	14.248 \| fine	64.02 \| fine	46.088 \| good	0.541 \| good	2.149 \| good	0.18 \| good
2025-09-14T22:00:00.000Z	64 \| moderate	16.066 \| fine	71.448 \| fine	47.691 \| good	0.571 \| good	5.3 \| good	0.206 \| good
2025-09-14T23:00:00.000Z	64 \| moderate	15.693 \| fine	69.635 \| fine	41.461 \| good	0.6 \| good	8.451 \| good	0.232 \| good
2025-09-15T00:00:00.000Z	54 \| moderate	10.859 \| good	48.322 \| good	37.042 \| good	0.63 \| good	11.603 \| good	0.258 \| good
2025-09-15T01:00:00.000Z	52 \| moderate	10.248 \| good	45.38 \| good	29.853 \| good	0.664 \| good	10.868 \| good	0.25 \| good
2025-09-15T02:00:00.000Z	54 \| moderate	10.703 \| good	47.454 \| good	26.7 \| good	0.697 \| good	10.133 \| good	0.242 \| good
2025-09-15T03:00:00.000Z	56 \| moderate	12.48 \| fine	56.246 \| fine	28.383 \| good	0.731 \| good	9.398 \| good	0.233 \| good
2025-09-15T04:00:00.000Z	60 \| moderate	13.71 \| fine	61.672 \| fine	24.151 \| good	0.742 \| good	8.224 \| good	0.219 \| good
2025-09-15T05:00:00.000Z	62 \| moderate	14.634 \| fine	65.537 \| fine	24.619 \| good	0.753 \| good	7.051 \| good	0.204 \| good
2025-09-15T06:00:00.000Z	62 \| moderate	15.465 \| fine	69.036 \| fine	25.715 \| good	0.764 \| good	5.877 \| good	0.189 \| good
2025-09-15T07:00:00.000Z	66 \| moderate	16.77 \| fine	74.104 \| fine	23.542 \| good	0.66 \| good	5.871 \| good	0.193 \| good
2025-09-15T08:00:00.000Z	66 \| moderate	16.571 \| fine	73.708 \| fine	24.596 \| good	0.556 \| good	5.865 \| good	0.197 \| good
2025-09-15T09:00:00.000Z	62 \| moderate	14.773 \| fine	65.508 \| fine	26.56 \| good	0.452 \| good	5.86 \| good	0.201 \| good
2025-09-15T10:00:00.000Z	62 \| moderate	14.72 \| fine	65.572 \| fine	25.297 \| good	0.525 \| good	5.833 \| good	0.215 \| good
2025-09-15T11:00:00.000Z	60 \| moderate	13.91 \| fine	62.448 \| fine	23.983 \| good	0.598 \| good	5.806 \| good	0.228 \| good
2025-09-15T12:00:00.000Z	60 \| moderate	13.529 \| fine	60.405 \| fine	28.907 \| good	0.671 \| good	5.779 \| good	0.242 \| good
2025-09-15T13:00:00.000Z	60 \| moderate	13.66 \| fine	61.291 \| fine	31.003 \| good	0.825 \| good	5.013 \| good	0.24 \| good
2025-09-15T14:00:00.000Z	58 \| moderate	13.172 \| fine	59.612 \| fine	34.583 \| good	0.979 \| good	4.247 \| good	0.237 \| good
2025-09-15T15:00:00.000Z	54 \| moderate	10.616 \| good	46.887 \| good	36.504 \| good	1.132 \| good	3.482 \| good	0.235 \| good
2025-09-15T16:00:00.000Z	49 \| good	9.127 \| good	40.321 \| good	39.238 \| good	1.039 \| good	2.87 \| good	0.22 \| good
2025-09-15T17:00:00.000Z	49 \| good	9.27 \| good	41.059 \| good	39.882 \| good	0.945 \| good	2.258 \| good	0.205 \| good
2025-09-15T18:00:00.000Z	54 \| moderate	11.269 \| good	49.616 \| good	44.256 \| good	0.851 \| good	1.646 \| good	0.19 \| good
2025-09-15T19:00:00.000Z	56 \| moderate	11.857 \| good	52.826 \| good	48.182 \| good	0.826 \| good	1.697 \| good	0.187 \| good
2025-09-15T20:00:00.000Z	58 \| moderate	12.862 \| fine	58.087 \| fine	49.018 \| good	0.802 \| good	1.748 \| good	0.184 \| good
2025-09-15T21:00:00.000Z	56 \| moderate	11.538 \| good	51.189 \| good	43.033 \| good	0.778 \| good	1.798 \| good	0.18 \| good
2025-09-15T22:00:00.000Z	52 \| moderate	10.167 \| good	45.229 \| good	39.881 \| good	0.751 \| good	2.933 \| good	0.184 \| good
2025-09-15T23:00:00.000Z	49 \| good	8.974 \| good	39.918 \| good	33.652 \| good	0.724 \| good	4.067 \| good	0.188 \| good
2025-09-16T00:00:00.000Z	54 \| moderate	11.465 \| good	13.542 \| good	51.434 \| good	0.704 \| good	5.336 \| good	0.194 \| good
2025-09-16T01:00:00.000Z	56 \| moderate	12.49 \| fine	56.346 \| fine	23.47 \| good	0.687 \| good	4.834 \| good	0.185 \| good
2025-09-16T02:00:00.000Z	58 \| moderate	13.409 \| fine	60.179 \| fine	19.988 \| good	0.676 \| good	4.468 \| good	0.178 \| good

Ledyard, Connecticut live air quality index now

Major air pollutants in Ledyard, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Ledyard, Connecticut air quality forecast and history

Get reliable air quality data to drive your business

Ledyard, Connecticut air quality map: Track AQI near you

Air quality in nearby cities

Norwich, Connecticut

Montville, Connecticut

Groton, Connecticut

New London, Connecticut

Waterford, Connecticut

Stonington, Connecticut

How accurate is Connecticut, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

What is the current air quality in Ledyard, Connecticut?

What pollutant is the most common in Ledyard, Connecticut?

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

What is the current concentration of PM2.5 in Ledyard, Connecticut?

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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