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

The current PM10 concentration at Ledyard, Connecticut is 14.598 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Ledyard, Connecticut is 0.301 ppb.

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

The current ozone (O3) concentration at Ledyard, Connecticut is 24.837 ppm.

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

The current nitrogen dioxide (NO2) concentration at Ledyard, Connecticut is 19.545 ppb.

Ledyard, Connecticut live air quality index now

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

The current PM2.5 concentration at Ledyard, Connecticut is 5.718 μg/m3.

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)

5.72 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.60 μg/m³

155

255

425

605+

Ozone (O₃)

24.84 ppb

201

201+

Sulfur Dioxide (SO₂)

0.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

19.55 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.46 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2025-12-27T00:00:00.000Z	30 \| good	3.202 \| good	8.42 \| good	31.901 \| good	0.332 \| good	6.884 \| good	0.235 \| good
2025-12-27T01:00:00.000Z	28 \| good	3.029 \| good	8.779 \| good	29.543 \| good	0.33 \| good	4.932 \| good	0.245 \| good
2025-12-27T02:00:00.000Z	29 \| good	3.183 \| good	8.185 \| good	30.532 \| good	0.265 \| good	7.766 \| good	0.21 \| good
2025-12-27T03:00:00.000Z	27 \| good	3.221 \| good	8.397 \| good	28.746 \| good	0.241 \| good	8.204 \| good	0.191 \| good
2025-12-27T04:00:00.000Z	29 \| good	3.224 \| good	7.493 \| good	31.047 \| good	0.242 \| good	7.356 \| good	0.21 \| good
2025-12-27T05:00:00.000Z	28 \| good	3.441 \| good	7.842 \| good	30.29 \| good	0.246 \| good	8.382 \| good	0.199 \| good
2025-12-27T06:00:00.000Z	27 \| good	3.424 \| good	8.8 \| good	29.1 \| good	0.225 \| good	8.546 \| good	0.218 \| good
2025-12-27T07:00:00.000Z	28 \| good	3.453 \| good	8.642 \| good	30.028 \| good	0.226 \| good	7.721 \| good	0.203 \| good
2025-12-27T08:00:00.000Z	28 \| good	3.414 \| good	8.498 \| good	30.235 \| good	0.215 \| good	6.393 \| good	0.203 \| good
2025-12-27T09:00:00.000Z	26 \| good	3.563 \| good	9.958 \| good	27.983 \| good	0.273 \| good	7.573 \| good	0.182 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.586 \| good	9.717 \| good	26.042 \| good	0.282 \| good	6.589 \| good	0.199 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.632 \| good	9.009 \| good	24.12 \| good	0.294 \| good	5.041 \| good	0.182 \| good
2025-12-27T12:00:00.000Z	27 \| good	3.508 \| good	8.383 \| good	29.397 \| good	0.266 \| good	4.659 \| good	0.182 \| good
2025-12-27T13:00:00.000Z	25 \| good	3.442 \| good	8.115 \| good	26.911 \| good	0.272 \| good	5.272 \| good	0.168 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.545 \| good	8.269 \| good	28.695 \| good	0.265 \| good	6.388 \| good	0.259 \| good
2025-12-27T15:00:00.000Z	27 \| good	3.528 \| good	7.787 \| good	29.24 \| good	0.265 \| good	7.883 \| good	0.259 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.421 \| good	7.437 \| good	29.401 \| good	0.246 \| good	7.632 \| good	0.268 \| good
2025-12-27T17:00:00.000Z	29 \| good	3.599 \| good	8.703 \| good	31.473 \| good	0.246 \| good	7.502 \| good	0.285 \| good
2025-12-27T18:00:00.000Z	30 \| good	3.722 \| good	8.48 \| good	32.416 \| good	0.266 \| good	7.937 \| good	0.25 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.854 \| good	8.959 \| good	31.906 \| good	0.267 \| good	6.173 \| good	0.25 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.974 \| good	9.615 \| good	33.019 \| good	0.248 \| good	7.243 \| good	0.26 \| good
2025-12-27T21:00:00.000Z	31 \| good	4.189 \| good	9.13 \| good	33.036 \| good	0.248 \| good	6.829 \| good	0.305 \| good
2025-12-27T22:00:00.000Z	31 \| good	4.534 \| good	9.835 \| good	34.183 \| good	0.241 \| good	10.134 \| good	0.357 \| good
2025-12-27T23:00:00.000Z	33 \| good	5.824 \| good	12.045 \| good	32.848 \| good	0.296 \| good	9.393 \| good	0.421 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.787 \| good	11.676 \| good	26.553 \| good	0.304 \| good	14.14 \| good	0.53 \| good
2025-12-28T01:00:00.000Z	38 \| good	6.582 \| good	13.831 \| good	28.578 \| good	0.398 \| good	17.946 \| good	0.668 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.87 \| good	16.526 \| good	23.576 \| good	0.449 \| good	18.031 \| good	0.603 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	11.834 \| good	52.452 \| good	15.475 \| good	0.849 \| good	10.171 \| good	0.229 \| good
2025-12-28T04:00:00.000Z	49 \| good	9.226 \| good	18.517 \| good	17.996 \| good	0.511 \| good	12.636 \| good	0.58 \| good
2025-12-28T05:00:00.000Z	52 \| moderate	10.446 \| good	21.238 \| good	17.407 \| good	0.337 \| good	17.373 \| good	0.545 \| good
2025-12-28T06:00:00.000Z	56 \| moderate	11.89 \| good	26.022 \| good	15.403 \| good	0.5 \| good	20.758 \| good	0.466 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	11.33 \| good	22.165 \| good	16.468 \| good	0.432 \| good	21.563 \| good	0.414 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	11.46 \| good	21.825 \| good	13.56 \| good	0.335 \| good	25.472 \| good	0.381 \| good
2025-12-28T09:00:00.000Z	52 \| moderate	9.734 \| good	19.098 \| good	13.052 \| good	0.517 \| good	26.052 \| good	0.448 \| good
2025-12-28T10:00:00.000Z	52 \| moderate	10.001 \| good	20.925 \| good	13.914 \| good	0.583 \| good	31.134 \| good	0.561 \| good
2025-12-28T11:00:00.000Z	54 \| moderate	11.03 \| good	21.367 \| good	16.023 \| good	0.478 \| good	27.738 \| good	0.545 \| good
2025-12-28T12:00:00.000Z	54 \| moderate	11.106 \| good	21.28 \| good	19.545 \| good	0.542 \| good	25.969 \| good	0.566 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	11.178 \| good	20.298 \| good	16.734 \| good	0.542 \| good	26.194 \| good	0.452 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.812 \| good	19.704 \| good	15.034 \| good	0.535 \| good	27.793 \| good	0.605 \| good
2025-12-28T15:00:00.000Z	49 \| good	9.015 \| good	17.128 \| good	16.679 \| good	0.479 \| good	12.489 \| good	0.438 \| good
2025-12-28T16:00:00.000Z	44 \| good	7.646 \| good	15.678 \| good	29.181 \| good	0.441 \| good	13.399 \| good	0.367 \| good
2025-12-28T17:00:00.000Z	38 \| good	7.445 \| good	17.932 \| good	34.496 \| good	0.401 \| good	9.819 \| good	0.296 \| good
2025-12-28T18:00:00.000Z	38 \| good	6.588 \| good	16.714 \| good	31.737 \| good	0.452 \| good	10.254 \| good	0.271 \| good
2025-12-28T19:00:00.000Z	33 \| good	5.874 \| good	16.081 \| good	34.162 \| good	0.389 \| good	10.577 \| good	0.307 \| good
2025-12-28T20:00:00.000Z	30 \| good	5.367 \| good	14.14 \| good	32.068 \| good	0.339 \| good	13.029 \| good	0.327 \| good
2025-12-28T21:00:00.000Z	33 \| good	5.653 \| good	15.625 \| good	34.607 \| good	0.34 \| good	15.1 \| good	0.362 \| good
2025-12-28T22:00:00.000Z	33 \| good	5.718 \| good	14.598 \| good	24.837 \| good	0.301 \| good	19.545 \| good	0.455 \| good
2025-12-28T23:00:00.000Z	33 \| good	5.718 \| good	14.598 \| good	24.837 \| good	0.301 \| good	19.545 \| good	0.455 \| good
2025-12-29T00:00:00.000Z	73 \| moderate	21.393 \| fine	94 \| fine	4.631 \| good	2.136 \| good	21.458 \| good	0.244 \| good
2025-12-29T01:00:00.000Z	69 \| moderate	19.032 \| fine	84.211 \| fine	13.071 \| good	1.892 \| good	19.753 \| good	0.231 \| good
2025-12-29T02:00:00.000Z	62 \| moderate	15.309 \| fine	68.672 \| fine	17.636 \| good	1.648 \| good	18.048 \| good	0.218 \| good
2025-12-29T03:00:00.000Z	52 \| moderate	10.172 \| good	45.273 \| good	20.855 \| good	1.405 \| good	16.343 \| good	0.205 \| good
2025-12-29T04:00:00.000Z	44 \| good	7.671 \| good	33.898 \| good	27.83 \| good	1.026 \| good	11.764 \| good	0.185 \| good
2025-12-29T05:00:00.000Z	38 \| good	7.101 \| good	31.312 \| good	31.771 \| good	0.647 \| good	7.186 \| good	0.164 \| good
2025-12-29T06:00:00.000Z	33 \| good	6.056 \| good	26.548 \| good	34.935 \| good	0.269 \| good	2.607 \| good	0.144 \| good
2025-12-29T07:00:00.000Z	34 \| good	5.007 \| good	21.67 \| good	36.966 \| good	0.241 \| good	1.879 \| good	0.138 \| good
2025-12-29T08:00:00.000Z	36 \| good	4.261 \| good	18.488 \| good	39.283 \| good	0.213 \| good	1.152 \| good	0.133 \| good
2025-12-29T09:00:00.000Z	32 \| good	4.231 \| good	18.317 \| good	35.332 \| good	0.185 \| good	0.424 \| good	0.127 \| good
2025-12-29T10:00:00.000Z	33 \| good	4.344 \| good	18.9 \| good	35.666 \| good	0.274 \| good	1.057 \| good	0.132 \| good
2025-12-29T11:00:00.000Z	34 \| good	4.054 \| good	17.81 \| good	36.5 \| good	0.363 \| good	1.69 \| good	0.138 \| good
2025-12-29T12:00:00.000Z	32 \| good	3.73 \| good	16.306 \| good	34.777 \| good	0.452 \| good	2.323 \| good	0.143 \| good
2025-12-29T13:00:00.000Z	32 \| good	4.371 \| good	18.96 \| good	34.68 \| good	0.508 \| good	2.768 \| good	0.149 \| good
2025-12-29T14:00:00.000Z	33 \| good	5.774 \| good	24.961 \| good	32.431 \| good	0.563 \| good	3.213 \| good	0.155 \| good
2025-12-29T15:00:00.000Z	33 \| good	5.61 \| good	24.146 \| good	34.58 \| good	0.618 \| good	3.658 \| good	0.161 \| good
2025-12-29T16:00:00.000Z	33 \| good	5.727 \| good	25.195 \| good	35.691 \| good	0.538 \| good	3.343 \| good	0.157 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.922 \| good	26.052 \| good	35.169 \| good	0.458 \| good	3.027 \| good	0.154 \| good
2025-12-29T18:00:00.000Z	33 \| good	6.368 \| good	28.427 \| good	34.606 \| good	0.378 \| good	2.712 \| good	0.15 \| good
2025-12-29T19:00:00.000Z	33 \| good	6.24 \| good	27.651 \| good	33.033 \| good	0.703 \| good	4.898 \| good	0.161 \| good
2025-12-29T20:00:00.000Z	44 \| good	7.516 \| good	32.951 \| good	27.356 \| good	1.029 \| good	7.083 \| good	0.171 \| good
2025-12-29T21:00:00.000Z	44 \| good	7.671 \| good	33.794 \| good	29.338 \| good	1.354 \| good	9.269 \| good	0.182 \| good
2025-12-29T22:00:00.000Z	39 \| good	4.158 \| good	18.279 \| good	42.239 \| good	1.404 \| good	7.402 \| good	0.176 \| good
2025-12-29T23:00:00.000Z	35 \| good	4.059 \| good	18 \| good	38.251 \| good	1.454 \| good	5.535 \| good	0.171 \| good
2025-12-30T00:00:00.000Z	24 \| good	1.962 \| good	7.972 \| good	25.936 \| good	1.504 \| good	3.668 \| good	0.165 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.202 \| good	4.833 \| good	19.912 \| good	1.201 \| good	3.174 \| good	0.165 \| good
2025-12-30T02:00:00.000Z	15 \| good	1.438 \| good	6.016 \| good	16.343 \| good	0.898 \| good	2.68 \| good	0.164 \| good
2025-12-30T03:00:00.000Z	15 \| good	1.496 \| good	6.044 \| good	16.136 \| good	0.595 \| good	2.185 \| good	0.163 \| good
2025-12-30T04:00:00.000Z	18 \| good	1.52 \| good	6.07 \| good	19.358 \| good	0.521 \| good	1.92 \| good	0.158 \| good
2025-12-30T05:00:00.000Z	20 \| good	1.126 \| good	4.741 \| good	21.611 \| good	0.448 \| good	1.654 \| good	0.152 \| good
2025-12-30T06:00:00.000Z	24 \| good	0.928 \| good	3.656 \| good	25.577 \| good	0.374 \| good	1.389 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	29 \| good	0.704 \| good	2.636 \| good	30.834 \| good	0.325 \| good	1.183 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	31 \| good	0.948 \| good	3.647 \| good	33.388 \| good	0.276 \| good	0.978 \| good	0.14 \| good
2025-12-30T09:00:00.000Z	30 \| good	0.794 \| good	3 \| good	32.311 \| good	0.227 \| good	0.772 \| good	0.137 \| good
2025-12-30T10:00:00.000Z	30 \| good	0.668 \| good	2.15 \| good	31.57 \| good	0.25 \| good	0.952 \| good	0.139 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.418 \| good	1.619 \| good	32.034 \| good	0.273 \| good	1.131 \| good	0.142 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.333 \| good	1.133 \| good	32.072 \| good	0.296 \| good	1.311 \| good	0.144 \| good
2025-12-30T13:00:00.000Z	31 \| good	0.468 \| good	1.929 \| good	32.655 \| good	0.305 \| good	1.317 \| good	0.144 \| good
2025-12-30T14:00:00.000Z	28 \| good	0.322 \| good	1.133 \| good	30.324 \| good	0.313 \| good	1.324 \| good	0.144 \| good
2025-12-30T15:00:00.000Z	30 \| good	0.342 \| good	1.133 \| good	31.975 \| good	0.321 \| good	1.33 \| good	0.144 \| good
2025-12-30T16:00:00.000Z	30 \| good	0.573 \| good	1.979 \| good	32.252 \| good	0.313 \| good	1.248 \| good	0.143 \| good
2025-12-30T17:00:00.000Z	32 \| good	0.742 \| good	2.899 \| good	34.514 \| good	0.305 \| good	1.166 \| good	0.141 \| good
2025-12-30T18:00:00.000Z	33 \| good	0.681 \| good	2.503 \| good	36.261 \| good	0.298 \| good	1.084 \| good	0.14 \| good
2025-12-30T19:00:00.000Z	36 \| good	0.781 \| good	2.759 \| good	39.448 \| good	0.309 \| good	1.286 \| good	0.139 \| good
2025-12-30T20:00:00.000Z	38 \| good	0.8 \| good	3.109 \| good	40.548 \| good	0.32 \| good	1.488 \| good	0.138 \| good
2025-12-30T21:00:00.000Z	37 \| good	0.907 \| good	3.389 \| good	40.311 \| good	0.331 \| good	1.69 \| good	0.137 \| good
2025-12-30T22:00:00.000Z	37 \| good	1.247 \| good	4.919 \| good	39.81 \| good	0.409 \| good	1.881 \| good	0.136 \| good
2025-12-30T23:00:00.000Z	38 \| good	0.538 \| good	1.806 \| good	41.116 \| good	0.487 \| good	2.072 \| good	0.136 \| good

Ledyard

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Ledyard, Connecticut air quality map: Track AQI near you

0.45ppm

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 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 06:00:00 on 2025-12-28.

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 08:00:00 on 2025-12-28.

What is the current air quality in Ledyard, Connecticut?

The current air quality in Ledyard, Connecticut is 33, 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 PM2.5.

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 5.718 μg/m³.

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

The current PM₁₀ concentration at Ledyard, Connecticut is 14.598 μg/m³.

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

The current carbon monoxide (CO) concentration at Ledyard, Connecticut is 0.455 ppm.

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

The current sulfur dioxide (SO₂) concentration at Ledyard, Connecticut is 0.301 ppb.

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

The current ozone (O₃) concentration at Ledyard, Connecticut is 24.837 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Ledyard, Connecticut is 19.545 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	30 \| good	3.202 \| good	8.42 \| good	31.901 \| good	0.332 \| good	6.884 \| good	0.235 \| good
2025-12-27T01:00:00.000Z	28 \| good	3.029 \| good	8.779 \| good	29.543 \| good	0.33 \| good	4.932 \| good	0.245 \| good
2025-12-27T02:00:00.000Z	29 \| good	3.183 \| good	8.185 \| good	30.532 \| good	0.265 \| good	7.766 \| good	0.21 \| good
2025-12-27T03:00:00.000Z	27 \| good	3.221 \| good	8.397 \| good	28.746 \| good	0.241 \| good	8.204 \| good	0.191 \| good
2025-12-27T04:00:00.000Z	29 \| good	3.224 \| good	7.493 \| good	31.047 \| good	0.242 \| good	7.356 \| good	0.21 \| good
2025-12-27T05:00:00.000Z	28 \| good	3.441 \| good	7.842 \| good	30.29 \| good	0.246 \| good	8.382 \| good	0.199 \| good
2025-12-27T06:00:00.000Z	27 \| good	3.424 \| good	8.8 \| good	29.1 \| good	0.225 \| good	8.546 \| good	0.218 \| good
2025-12-27T07:00:00.000Z	28 \| good	3.453 \| good	8.642 \| good	30.028 \| good	0.226 \| good	7.721 \| good	0.203 \| good
2025-12-27T08:00:00.000Z	28 \| good	3.414 \| good	8.498 \| good	30.235 \| good	0.215 \| good	6.393 \| good	0.203 \| good
2025-12-27T09:00:00.000Z	26 \| good	3.563 \| good	9.958 \| good	27.983 \| good	0.273 \| good	7.573 \| good	0.182 \| good
2025-12-27T10:00:00.000Z	24 \| good	3.586 \| good	9.717 \| good	26.042 \| good	0.282 \| good	6.589 \| good	0.199 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.632 \| good	9.009 \| good	24.12 \| good	0.294 \| good	5.041 \| good	0.182 \| good
2025-12-27T12:00:00.000Z	27 \| good	3.508 \| good	8.383 \| good	29.397 \| good	0.266 \| good	4.659 \| good	0.182 \| good
2025-12-27T13:00:00.000Z	25 \| good	3.442 \| good	8.115 \| good	26.911 \| good	0.272 \| good	5.272 \| good	0.168 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.545 \| good	8.269 \| good	28.695 \| good	0.265 \| good	6.388 \| good	0.259 \| good
2025-12-27T15:00:00.000Z	27 \| good	3.528 \| good	7.787 \| good	29.24 \| good	0.265 \| good	7.883 \| good	0.259 \| good
2025-12-27T16:00:00.000Z	27 \| good	3.421 \| good	7.437 \| good	29.401 \| good	0.246 \| good	7.632 \| good	0.268 \| good
2025-12-27T17:00:00.000Z	29 \| good	3.599 \| good	8.703 \| good	31.473 \| good	0.246 \| good	7.502 \| good	0.285 \| good
2025-12-27T18:00:00.000Z	30 \| good	3.722 \| good	8.48 \| good	32.416 \| good	0.266 \| good	7.937 \| good	0.25 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.854 \| good	8.959 \| good	31.906 \| good	0.267 \| good	6.173 \| good	0.25 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.974 \| good	9.615 \| good	33.019 \| good	0.248 \| good	7.243 \| good	0.26 \| good
2025-12-27T21:00:00.000Z	31 \| good	4.189 \| good	9.13 \| good	33.036 \| good	0.248 \| good	6.829 \| good	0.305 \| good
2025-12-27T22:00:00.000Z	31 \| good	4.534 \| good	9.835 \| good	34.183 \| good	0.241 \| good	10.134 \| good	0.357 \| good
2025-12-27T23:00:00.000Z	33 \| good	5.824 \| good	12.045 \| good	32.848 \| good	0.296 \| good	9.393 \| good	0.421 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.787 \| good	11.676 \| good	26.553 \| good	0.304 \| good	14.14 \| good	0.53 \| good
2025-12-28T01:00:00.000Z	38 \| good	6.582 \| good	13.831 \| good	28.578 \| good	0.398 \| good	17.946 \| good	0.668 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.87 \| good	16.526 \| good	23.576 \| good	0.449 \| good	18.031 \| good	0.603 \| good
2025-12-28T03:00:00.000Z	56 \| moderate	11.834 \| good	52.452 \| good	15.475 \| good	0.849 \| good	10.171 \| good	0.229 \| good
2025-12-28T04:00:00.000Z	49 \| good	9.226 \| good	18.517 \| good	17.996 \| good	0.511 \| good	12.636 \| good	0.58 \| good
2025-12-28T05:00:00.000Z	52 \| moderate	10.446 \| good	21.238 \| good	17.407 \| good	0.337 \| good	17.373 \| good	0.545 \| good
2025-12-28T06:00:00.000Z	56 \| moderate	11.89 \| good	26.022 \| good	15.403 \| good	0.5 \| good	20.758 \| good	0.466 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	11.33 \| good	22.165 \| good	16.468 \| good	0.432 \| good	21.563 \| good	0.414 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	11.46 \| good	21.825 \| good	13.56 \| good	0.335 \| good	25.472 \| good	0.381 \| good
2025-12-28T09:00:00.000Z	52 \| moderate	9.734 \| good	19.098 \| good	13.052 \| good	0.517 \| good	26.052 \| good	0.448 \| good
2025-12-28T10:00:00.000Z	52 \| moderate	10.001 \| good	20.925 \| good	13.914 \| good	0.583 \| good	31.134 \| good	0.561 \| good
2025-12-28T11:00:00.000Z	54 \| moderate	11.03 \| good	21.367 \| good	16.023 \| good	0.478 \| good	27.738 \| good	0.545 \| good
2025-12-28T12:00:00.000Z	54 \| moderate	11.106 \| good	21.28 \| good	19.545 \| good	0.542 \| good	25.969 \| good	0.566 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	11.178 \| good	20.298 \| good	16.734 \| good	0.542 \| good	26.194 \| good	0.452 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.812 \| good	19.704 \| good	15.034 \| good	0.535 \| good	27.793 \| good	0.605 \| good
2025-12-28T15:00:00.000Z	49 \| good	9.015 \| good	17.128 \| good	16.679 \| good	0.479 \| good	12.489 \| good	0.438 \| good
2025-12-28T16:00:00.000Z	44 \| good	7.646 \| good	15.678 \| good	29.181 \| good	0.441 \| good	13.399 \| good	0.367 \| good
2025-12-28T17:00:00.000Z	38 \| good	7.445 \| good	17.932 \| good	34.496 \| good	0.401 \| good	9.819 \| good	0.296 \| good
2025-12-28T18:00:00.000Z	38 \| good	6.588 \| good	16.714 \| good	31.737 \| good	0.452 \| good	10.254 \| good	0.271 \| good
2025-12-28T19:00:00.000Z	33 \| good	5.874 \| good	16.081 \| good	34.162 \| good	0.389 \| good	10.577 \| good	0.307 \| good
2025-12-28T20:00:00.000Z	30 \| good	5.367 \| good	14.14 \| good	32.068 \| good	0.339 \| good	13.029 \| good	0.327 \| good
2025-12-28T21:00:00.000Z	33 \| good	5.653 \| good	15.625 \| good	34.607 \| good	0.34 \| good	15.1 \| good	0.362 \| good
2025-12-28T22:00:00.000Z	33 \| good	5.718 \| good	14.598 \| good	24.837 \| good	0.301 \| good	19.545 \| good	0.455 \| good
2025-12-28T23:00:00.000Z	33 \| good	5.718 \| good	14.598 \| good	24.837 \| good	0.301 \| good	19.545 \| good	0.455 \| good
2025-12-29T00:00:00.000Z	73 \| moderate	21.393 \| fine	94 \| fine	4.631 \| good	2.136 \| good	21.458 \| good	0.244 \| good
2025-12-29T01:00:00.000Z	69 \| moderate	19.032 \| fine	84.211 \| fine	13.071 \| good	1.892 \| good	19.753 \| good	0.231 \| good
2025-12-29T02:00:00.000Z	62 \| moderate	15.309 \| fine	68.672 \| fine	17.636 \| good	1.648 \| good	18.048 \| good	0.218 \| good
2025-12-29T03:00:00.000Z	52 \| moderate	10.172 \| good	45.273 \| good	20.855 \| good	1.405 \| good	16.343 \| good	0.205 \| good
2025-12-29T04:00:00.000Z	44 \| good	7.671 \| good	33.898 \| good	27.83 \| good	1.026 \| good	11.764 \| good	0.185 \| good
2025-12-29T05:00:00.000Z	38 \| good	7.101 \| good	31.312 \| good	31.771 \| good	0.647 \| good	7.186 \| good	0.164 \| good
2025-12-29T06:00:00.000Z	33 \| good	6.056 \| good	26.548 \| good	34.935 \| good	0.269 \| good	2.607 \| good	0.144 \| good
2025-12-29T07:00:00.000Z	34 \| good	5.007 \| good	21.67 \| good	36.966 \| good	0.241 \| good	1.879 \| good	0.138 \| good
2025-12-29T08:00:00.000Z	36 \| good	4.261 \| good	18.488 \| good	39.283 \| good	0.213 \| good	1.152 \| good	0.133 \| good
2025-12-29T09:00:00.000Z	32 \| good	4.231 \| good	18.317 \| good	35.332 \| good	0.185 \| good	0.424 \| good	0.127 \| good
2025-12-29T10:00:00.000Z	33 \| good	4.344 \| good	18.9 \| good	35.666 \| good	0.274 \| good	1.057 \| good	0.132 \| good
2025-12-29T11:00:00.000Z	34 \| good	4.054 \| good	17.81 \| good	36.5 \| good	0.363 \| good	1.69 \| good	0.138 \| good
2025-12-29T12:00:00.000Z	32 \| good	3.73 \| good	16.306 \| good	34.777 \| good	0.452 \| good	2.323 \| good	0.143 \| good
2025-12-29T13:00:00.000Z	32 \| good	4.371 \| good	18.96 \| good	34.68 \| good	0.508 \| good	2.768 \| good	0.149 \| good
2025-12-29T14:00:00.000Z	33 \| good	5.774 \| good	24.961 \| good	32.431 \| good	0.563 \| good	3.213 \| good	0.155 \| good
2025-12-29T15:00:00.000Z	33 \| good	5.61 \| good	24.146 \| good	34.58 \| good	0.618 \| good	3.658 \| good	0.161 \| good
2025-12-29T16:00:00.000Z	33 \| good	5.727 \| good	25.195 \| good	35.691 \| good	0.538 \| good	3.343 \| good	0.157 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.922 \| good	26.052 \| good	35.169 \| good	0.458 \| good	3.027 \| good	0.154 \| good
2025-12-29T18:00:00.000Z	33 \| good	6.368 \| good	28.427 \| good	34.606 \| good	0.378 \| good	2.712 \| good	0.15 \| good
2025-12-29T19:00:00.000Z	33 \| good	6.24 \| good	27.651 \| good	33.033 \| good	0.703 \| good	4.898 \| good	0.161 \| good
2025-12-29T20:00:00.000Z	44 \| good	7.516 \| good	32.951 \| good	27.356 \| good	1.029 \| good	7.083 \| good	0.171 \| good
2025-12-29T21:00:00.000Z	44 \| good	7.671 \| good	33.794 \| good	29.338 \| good	1.354 \| good	9.269 \| good	0.182 \| good
2025-12-29T22:00:00.000Z	39 \| good	4.158 \| good	18.279 \| good	42.239 \| good	1.404 \| good	7.402 \| good	0.176 \| good
2025-12-29T23:00:00.000Z	35 \| good	4.059 \| good	18 \| good	38.251 \| good	1.454 \| good	5.535 \| good	0.171 \| good
2025-12-30T00:00:00.000Z	24 \| good	1.962 \| good	7.972 \| good	25.936 \| good	1.504 \| good	3.668 \| good	0.165 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.202 \| good	4.833 \| good	19.912 \| good	1.201 \| good	3.174 \| good	0.165 \| good
2025-12-30T02:00:00.000Z	15 \| good	1.438 \| good	6.016 \| good	16.343 \| good	0.898 \| good	2.68 \| good	0.164 \| good
2025-12-30T03:00:00.000Z	15 \| good	1.496 \| good	6.044 \| good	16.136 \| good	0.595 \| good	2.185 \| good	0.163 \| good
2025-12-30T04:00:00.000Z	18 \| good	1.52 \| good	6.07 \| good	19.358 \| good	0.521 \| good	1.92 \| good	0.158 \| good
2025-12-30T05:00:00.000Z	20 \| good	1.126 \| good	4.741 \| good	21.611 \| good	0.448 \| good	1.654 \| good	0.152 \| good
2025-12-30T06:00:00.000Z	24 \| good	0.928 \| good	3.656 \| good	25.577 \| good	0.374 \| good	1.389 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	29 \| good	0.704 \| good	2.636 \| good	30.834 \| good	0.325 \| good	1.183 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	31 \| good	0.948 \| good	3.647 \| good	33.388 \| good	0.276 \| good	0.978 \| good	0.14 \| good
2025-12-30T09:00:00.000Z	30 \| good	0.794 \| good	3 \| good	32.311 \| good	0.227 \| good	0.772 \| good	0.137 \| good
2025-12-30T10:00:00.000Z	30 \| good	0.668 \| good	2.15 \| good	31.57 \| good	0.25 \| good	0.952 \| good	0.139 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.418 \| good	1.619 \| good	32.034 \| good	0.273 \| good	1.131 \| good	0.142 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.333 \| good	1.133 \| good	32.072 \| good	0.296 \| good	1.311 \| good	0.144 \| good
2025-12-30T13:00:00.000Z	31 \| good	0.468 \| good	1.929 \| good	32.655 \| good	0.305 \| good	1.317 \| good	0.144 \| good
2025-12-30T14:00:00.000Z	28 \| good	0.322 \| good	1.133 \| good	30.324 \| good	0.313 \| good	1.324 \| good	0.144 \| good
2025-12-30T15:00:00.000Z	30 \| good	0.342 \| good	1.133 \| good	31.975 \| good	0.321 \| good	1.33 \| good	0.144 \| good
2025-12-30T16:00:00.000Z	30 \| good	0.573 \| good	1.979 \| good	32.252 \| good	0.313 \| good	1.248 \| good	0.143 \| good
2025-12-30T17:00:00.000Z	32 \| good	0.742 \| good	2.899 \| good	34.514 \| good	0.305 \| good	1.166 \| good	0.141 \| good
2025-12-30T18:00:00.000Z	33 \| good	0.681 \| good	2.503 \| good	36.261 \| good	0.298 \| good	1.084 \| good	0.14 \| good
2025-12-30T19:00:00.000Z	36 \| good	0.781 \| good	2.759 \| good	39.448 \| good	0.309 \| good	1.286 \| good	0.139 \| good
2025-12-30T20:00:00.000Z	38 \| good	0.8 \| good	3.109 \| good	40.548 \| good	0.32 \| good	1.488 \| good	0.138 \| good
2025-12-30T21:00:00.000Z	37 \| good	0.907 \| good	3.389 \| good	40.311 \| good	0.331 \| good	1.69 \| good	0.137 \| good
2025-12-30T22:00:00.000Z	37 \| good	1.247 \| good	4.919 \| good	39.81 \| good	0.409 \| good	1.881 \| good	0.136 \| good
2025-12-30T23:00:00.000Z	38 \| good	0.538 \| good	1.806 \| good	41.116 \| good	0.487 \| good	2.072 \| good	0.136 \| 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)

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Air quality in nearby cities

Norwich, Connecticut

Montville, Connecticut

Groton, Connecticut

New London, Connecticut

Waterford, Connecticut

Stonington, Connecticut

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Frequently asked questions

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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?

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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?

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

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