What is the sulfur dioxide (SO2) level in Stonington, Connecticut at the moment?

Currently, Stonington, Connecticut has a sulfur dioxide (SO2) concentration of 0.222 ppb.

What is the ozone (O3) level in Stonington, Connecticut at the moment?

The current ozone (O3) level in Stonington, Connecticut at the moment is 46.14 ppm.

What is the nitrogen dioxide (NO2) level in Stonington, Connecticut at the moment?

Nitrogen dioxide (NO2) level in Stonington, Connecticut at the moment is 7.606 ppb.

Live air quality index in Stonington, Connecticut today

Q: What is the PM2.5 level in Stonington, Connecticut at the moment?

PM2.5 levels in Stonington, Connecticut are currently 11.413 μg/m3.

Q: What is the PM10 level in Stonington, Connecticut at the moment?

The PM10 concentration in Stonington, Connecticut is 34.768 μg/m3 at the moment.

Stay updated with real-time air quality in Stonington, Connecticut featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Stonington, Connecticut

Last updated: ... (Local time)

Major air pollutants in Stonington, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

34.77 μg/m³

155

255

425

605+

Ozone (O₃)

46.14 ppb

201

201+

Sulfur Dioxide (SO₂)

0.22 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.61 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Stonington, Connecticut

Get Live Pollen Counts

Stonington, Connecticut

Scroll To Air Quality Map

Track live Stonington, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T19:00:00.000Z	49 \| good	8.689 \| good	13.011 \| good	46.375 \| good	0.275 \| good	9.27 \| good	0.244 \| good
2026-06-27T20:00:00.000Z	44 \| good	8.056 \| good	19.241 \| good	42.063 \| good	0.201 \| good	7.628 \| good	0.224 \| good
2026-06-27T21:00:00.000Z	49 \| good	8.74 \| good	24.548 \| good	47.255 \| good	0.201 \| good	5.902 \| good	0.208 \| good
2026-06-27T22:00:00.000Z	49 \| good	8.672 \| good	25.535 \| good	47.099 \| good	0.25 \| good	4.758 \| good	0.227 \| good
2026-06-27T23:00:00.000Z	49 \| good	9.028 \| good	28.458 \| good	47.234 \| good	0.253 \| good	5.576 \| good	0.219 \| good
2026-06-28T00:00:00.000Z	44 \| good	8.315 \| good	25.635 \| good	41.312 \| good	0.218 \| good	5.968 \| good	0.26 \| good
2026-06-28T01:00:00.000Z	44 \| good	7.958 \| good	26.485 \| good	42.922 \| good	0.236 \| good	4.072 \| good	0.237 \| good
2026-06-28T02:00:00.000Z	54 \| moderate	10.574 \| good	35.175 \| good	39.343 \| good	0.164 \| good	4.343 \| good	0.256 \| good
2026-06-28T03:00:00.000Z	58 \| moderate	13.003 \| fine	58.552 \| fine	46.67 \| good	0.343 \| good	5.684 \| good	0.217 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	12.285 \| fine	33.262 \| good	34.435 \| good	0.164 \| good	6.321 \| good	0.297 \| good
2026-06-28T05:00:00.000Z	54 \| moderate	10.935 \| good	34.522 \| good	30.743 \| good	0.167 \| good	9.252 \| good	0.314 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.148 \| good	34.199 \| good	28.706 \| good	0.166 \| good	8.101 \| good	0.307 \| good
2026-06-28T07:00:00.000Z	56 \| moderate	11.548 \| good	46.026 \| good	28.051 \| good	0.379 \| good	4.219 \| good	0.276 \| good
2026-06-28T08:00:00.000Z	56 \| moderate	11.853 \| good	57.38 \| fine	26.045 \| good	0.177 \| good	7.017 \| good	0.27 \| good
2026-06-28T09:00:00.000Z	58 \| moderate	13.465 \| fine	43.976 \| good	25.644 \| good	0.337 \| good	7.83 \| good	0.253 \| good
2026-06-28T10:00:00.000Z	56 \| moderate	11.788 \| good	63.202 \| fine	25.44 \| good	0.177 \| good	6.056 \| good	0.261 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	11.021 \| good	24.279 \| good	23.79 \| good	0.324 \| good	8.915 \| good	0.302 \| good
2026-06-28T12:00:00.000Z	56 \| moderate	11.933 \| good	48.471 \| good	22.478 \| good	0.49 \| good	4.084 \| good	0.241 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.374 \| good	50.394 \| good	20.515 \| good	0.463 \| good	5.64 \| good	0.212 \| good
2026-06-28T14:00:00.000Z	52 \| moderate	10.376 \| good	41.607 \| good	24.19 \| good	0.227 \| good	3.402 \| good	0.199 \| good
2026-06-28T15:00:00.000Z	49 \| good	9.361 \| good	43.771 \| good	27.327 \| good	0.197 \| good	3.798 \| good	0.18 \| good
2026-06-28T16:00:00.000Z	49 \| good	8.855 \| good	30.452 \| good	42.33 \| good	0.256 \| good	3.713 \| good	0.198 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	9.711 \| good	25.107 \| good	42.216 \| good	0.18 \| good	4.172 \| good	0.206 \| good
2026-06-28T18:00:00.000Z	49 \| good	8.891 \| good	30.875 \| good	49.839 \| good	0.181 \| good	3.792 \| good	0.2 \| good
2026-06-28T19:00:00.000Z	47 \| good	7.949 \| good	23.766 \| good	51.098 \| good	0.219 \| good	2.897 \| good	0.218 \| good
2026-06-28T20:00:00.000Z	54 \| moderate	8.833 \| good	26.944 \| good	56.182 \| fine	0.217 \| good	2.888 \| good	0.2 \| good
2026-06-28T21:00:00.000Z	47 \| good	7.32 \| good	21.712 \| good	50.697 \| good	0.252 \| good	4.032 \| good	0.188 \| good
2026-06-28T22:00:00.000Z	44 \| good	7.428 \| good	20.055 \| good	47.747 \| good	0.234 \| good	4.119 \| good	0.233 \| good
2026-06-28T23:00:00.000Z	43 \| good	6.826 \| good	15.746 \| good	46.255 \| good	0.233 \| good	5.418 \| good	0.213 \| good
2026-06-29T00:00:00.000Z	44 \| good	6.397 \| good	14.588 \| good	47.318 \| good	0.234 \| good	5.952 \| good	0.336 \| good
2026-06-29T01:00:00.000Z	44 \| good	6.156 \| good	16.771 \| good	48.475 \| good	0.146 \| good	5.28 \| good	0.252 \| good
2026-06-29T02:00:00.000Z	43 \| good	6.225 \| good	11.547 \| good	46.094 \| good	0.165 \| good	5.147 \| good	0.252 \| good
2026-06-29T03:00:00.000Z	52 \| moderate	9.946 \| good	44.455 \| good	30.472 \| good	0.254 \| good	2.449 \| good	0.17 \| good
2026-06-29T04:00:00.000Z	36 \| good	6.037 \| good	15.427 \| good	38.544 \| good	0.366 \| good	5.546 \| good	0.298 \| good
2026-06-29T05:00:00.000Z	38 \| good	6.561 \| good	20.017 \| good	36.848 \| good	0.285 \| good	8.345 \| good	0.235 \| good
2026-06-29T06:00:00.000Z	38 \| good	6.68 \| good	23.726 \| good	25.874 \| good	0.179 \| good	8.954 \| good	0.232 \| good
2026-06-29T07:00:00.000Z	38 \| good	6.711 \| good	17.782 \| good	32.33 \| good	0.328 \| good	8.762 \| good	0.22 \| good
2026-06-29T08:00:00.000Z	38 \| good	7.068 \| good	27.464 \| good	29.403 \| good	0.179 \| good	9.924 \| good	0.219 \| good
2026-06-29T09:00:00.000Z	33 \| good	6.393 \| good	20.922 \| good	28.388 \| good	0.179 \| good	10.589 \| good	0.258 \| good
2026-06-29T10:00:00.000Z	44 \| good	8.08 \| good	28.304 \| good	24.884 \| good	0.196 \| good	14.577 \| good	0.428 \| good
2026-06-29T11:00:00.000Z	44 \| good	7.61 \| good	30.371 \| good	23.863 \| good	0.177 \| good	10.576 \| good	0.428 \| good
2026-06-29T12:00:00.000Z	49 \| good	8.866 \| good	25.045 \| good	27.039 \| good	0.199 \| good	7.119 \| good	0.333 \| good
2026-06-29T13:00:00.000Z	44 \| good	8.246 \| good	25.127 \| good	29.619 \| good	0.345 \| good	9.748 \| good	0.315 \| good
2026-06-29T14:00:00.000Z	38 \| good	6.802 \| good	29.432 \| good	22.288 \| good	0.202 \| good	8.597 \| good	0.27 \| good
2026-06-29T15:00:00.000Z	44 \| good	8.057 \| good	34.899 \| good	28.327 \| good	0.187 \| good	6.241 \| good	0.27 \| good
2026-06-29T16:00:00.000Z	54 \| moderate	10.848 \| good	36.62 \| good	29.922 \| good	0.188 \| good	7.382 \| good	0.252 \| good
2026-06-29T17:00:00.000Z	54 \| moderate	11.065 \| good	33.129 \| good	42.291 \| good	0.199 \| good	6.337 \| good	0.174 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	11.413 \| good	34.768 \| good	46.14 \| good	0.222 \| good	7.606 \| good	0.2 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	11.413 \| good	34.768 \| good	46.14 \| good	0.222 \| good	7.606 \| good	0.2 \| good
2026-06-29T19:00:00.000Z	61 \| moderate	10.674 \| good	47.087 \| good	57.911 \| fine	0.259 \| good	1.428 \| good	0.183 \| good
2026-06-29T20:00:00.000Z	64 \| moderate	11.725 \| good	51.825 \| good	59.362 \| fine	0.253 \| good	1.48 \| good	0.182 \| good
2026-06-29T21:00:00.000Z	54 \| moderate	11.29 \| good	50.238 \| good	55.497 \| fine	0.234 \| good	1.696 \| good	0.183 \| good
2026-06-29T22:00:00.000Z	52 \| moderate	10.493 \| good	46.558 \| good	52.547 \| good	0.213 \| good	2.155 \| good	0.186 \| good
2026-06-29T23:00:00.000Z	52 \| moderate	10.089 \| good	44.87 \| good	49.192 \| good	0.197 \| good	2.679 \| good	0.188 \| good
2026-06-30T00:00:00.000Z	54 \| moderate	10.843 \| good	47.837 \| good	44.423 \| good	0.196 \| good	2.894 \| good	0.185 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	10.394 \| good	45.966 \| good	38.484 \| good	0.204 \| good	2.714 \| good	0.178 \| good
2026-06-30T02:00:00.000Z	54 \| moderate	11.13 \| good	49.435 \| good	33.286 \| good	0.225 \| good	2.397 \| good	0.17 \| good
2026-06-30T03:00:00.000Z	56 \| moderate	11.55 \| good	50.755 \| good	32.503 \| good	0.241 \| good	2.234 \| good	0.163 \| good
2026-06-30T04:00:00.000Z	52 \| moderate	10.38 \| good	45.763 \| good	32.205 \| good	0.252 \| good	2.172 \| good	0.158 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.888 \| good	39.052 \| good	27.054 \| good	0.256 \| good	2.186 \| good	0.154 \| good
2026-06-30T06:00:00.000Z	49 \| good	9.175 \| good	41 \| good	24.512 \| good	0.274 \| good	2.221 \| good	0.149 \| good
2026-06-30T07:00:00.000Z	49 \| good	8.776 \| good	38.428 \| good	21.909 \| good	0.294 \| good	2.417 \| good	0.146 \| good
2026-06-30T08:00:00.000Z	49 \| good	8.675 \| good	38.169 \| good	23.891 \| good	0.308 \| good	2.663 \| good	0.143 \| good
2026-06-30T09:00:00.000Z	49 \| good	8.842 \| good	38.761 \| good	27.989 \| good	0.326 \| good	2.924 \| good	0.14 \| good
2026-06-30T10:00:00.000Z	49 \| good	9.3 \| good	41.517 \| good	26.863 \| good	0.33 \| good	3.422 \| good	0.139 \| good
2026-06-30T11:00:00.000Z	49 \| good	8.559 \| good	37.721 \| good	29.128 \| good	0.316 \| good	3.546 \| good	0.141 \| good
2026-06-30T12:00:00.000Z	44 \| good	7.552 \| good	33.104 \| good	30.817 \| good	0.332 \| good	3.748 \| good	0.148 \| good
2026-06-30T13:00:00.000Z	38 \| good	7.348 \| good	32.331 \| good	34.182 \| good	0.371 \| good	3.889 \| good	0.158 \| good
2026-06-30T14:00:00.000Z	35 \| good	6.473 \| good	28.828 \| good	37.929 \| good	0.397 \| good	3.729 \| good	0.165 \| good
2026-06-30T15:00:00.000Z	39 \| good	6.805 \| good	30.371 \| good	41.896 \| good	0.402 \| good	3.374 \| good	0.167 \| good
2026-06-30T16:00:00.000Z	43 \| good	5.912 \| good	25.734 \| good	45.754 \| good	0.4 \| good	2.854 \| good	0.164 \| good
2026-06-30T17:00:00.000Z	45 \| good	4.679 \| good	20.434 \| good	48.878 \| good	0.388 \| good	2.26 \| good	0.159 \| good
2026-06-30T18:00:00.000Z	48 \| good	4.38 \| good	19.362 \| good	51.661 \| good	0.375 \| good	1.674 \| good	0.152 \| good
2026-06-30T19:00:00.000Z	43 \| good	5.792 \| good	24.833 \| good	46.331 \| good	0.374 \| good	1.265 \| good	0.144 \| good
2026-06-30T20:00:00.000Z	44 \| good	6.646 \| good	29.323 \| good	48.253 \| good	0.332 \| good	1.048 \| good	0.135 \| good
2026-06-30T21:00:00.000Z	44 \| good	6.556 \| good	29.121 \| good	47.386 \| good	0.238 \| good	1.036 \| good	0.128 \| good
2026-06-30T22:00:00.000Z	39 \| good	5.314 \| good	22.847 \| good	42.152 \| good	0.149 \| good	1.209 \| good	0.127 \| good
2026-06-30T23:00:00.000Z	35 \| good	5.024 \| good	21.606 \| good	38.259 \| good	0.099 \| good	1.519 \| good	0.127 \| good
2026-07-01T00:00:00.000Z	44 \| good	7.644 \| good	33.498 \| good	37.927 \| good	0.085 \| good	1.729 \| good	0.127 \| good
2026-07-01T01:00:00.000Z	38 \| good	6.757 \| good	29.812 \| good	34.971 \| good	0.099 \| good	1.672 \| good	0.125 \| good
2026-07-01T02:00:00.000Z	38 \| good	6.96 \| good	30.786 \| good	31.853 \| good	0.115 \| good	1.589 \| good	0.124 \| good
2026-07-01T03:00:00.000Z	38 \| good	7.118 \| good	31.727 \| good	33.955 \| good	0.129 \| good	1.557 \| good	0.123 \| good
2026-07-01T04:00:00.000Z	38 \| good	6.717 \| good	29.816 \| good	35.682 \| good	0.143 \| good	1.583 \| good	0.123 \| good
2026-07-01T05:00:00.000Z	33 \| good	6.394 \| good	28.184 \| good	36.021 \| good	0.165 \| good	1.73 \| good	0.123 \| good
2026-07-01T06:00:00.000Z	33 \| good	6.462 \| good	28.727 \| good	35.332 \| good	0.194 \| good	1.9 \| good	0.122 \| good
2026-07-01T07:00:00.000Z	38 \| good	6.706 \| good	29.673 \| good	34.059 \| good	0.223 \| good	1.983 \| good	0.122 \| good
2026-07-01T08:00:00.000Z	44 \| good	7.855 \| good	34.489 \| good	30.863 \| good	0.244 \| good	2.035 \| good	0.122 \| good
2026-07-01T09:00:00.000Z	38 \| good	7.479 \| good	32.88 \| good	22.872 \| good	0.256 \| good	2.087 \| good	0.121 \| good
2026-07-01T10:00:00.000Z	44 \| good	7.583 \| good	33.549 \| good	21.962 \| good	0.25 \| good	2.129 \| good	0.122 \| good
2026-07-01T11:00:00.000Z	44 \| good	7.649 \| good	33.696 \| good	24.164 \| good	0.239 \| good	2.006 \| good	0.124 \| good
2026-07-01T12:00:00.000Z	44 \| good	7.654 \| good	33.698 \| good	32.635 \| good	0.245 \| good	1.903 \| good	0.128 \| good
2026-07-01T13:00:00.000Z	49 \| good	8.805 \| good	38.749 \| good	41.44 \| good	0.268 \| good	1.867 \| good	0.134 \| good
2026-07-01T14:00:00.000Z	54 \| moderate	11.066 \| good	48.796 \| good	47.769 \| good	0.281 \| good	1.721 \| good	0.139 \| good
2026-07-01T15:00:00.000Z	60 \| moderate	13.709 \| fine	61.306 \| fine	57.365 \| fine	0.282 \| good	1.46 \| good	0.142 \| good
2026-07-01T16:00:00.000Z	105 \| sensitive	14.71 \| fine	65.121 \| fine	71.745 \| moderate	0.277 \| good	1.164 \| good	0.141 \| good
2026-07-01T17:00:00.000Z	122 \| sensitive	15.593 \| fine	69.306 \| fine	77.355 \| moderate	0.272 \| good	0.946 \| good	0.14 \| good
2026-07-01T18:00:00.000Z	140 \| sensitive	14.912 \| fine	66.632 \| fine	82.449 \| moderate	0.262 \| good	0.842 \| good	0.139 \| good

Stonington

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Stonington, Connecticut air quality map: Stay updated on AQI near you

0.16ppm

How accurate is Connecticut, USA air quality data?

Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Stonington, Connecticut?

The air quality information for Stonington, Connecticut is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Stonington, Connecticut at its worst?

In the past 24 hours, the air quality in Stonington, Connecticut was at its worst at 05:00:00 on 2026-06-29.

When did Stonington, Connecticut experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Stonington, Connecticut was observed at 09:00:00 on 2026-06-29.

What is the AQI in Stonington, Connecticut right now?

As of now, the AQI in Stonington, Connecticut is 54, indicating Moderate conditions.

What is the most common type of pollution in Stonington, Connecticut?

Stonington, Connecticut air has the highest levels of PM2.5.

What should I do in case of poor air quality in Stonington, Connecticut?

Poor air quality in Stonington, Connecticut means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Stonington, Connecticut at the moment?

PM_2.5 levels in Stonington, Connecticut are currently 11.413 μg/m³.

What is the PM₁₀ level in Stonington, Connecticut at the moment?

The PM₁₀ concentration in Stonington, Connecticut is 34.768 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Stonington, Connecticut at the moment?

The current carbon monoxide (CO) concentration in Stonington, Connecticut is 0.2 ppm.

What is the sulfur dioxide (SO₂) level in Stonington, Connecticut at the moment?

Currently, Stonington, Connecticut has a sulfur dioxide (SO₂) concentration of 0.222 ppb.

What is the ozone (O₃) level in Stonington, Connecticut at the moment?

The current ozone (O₃) level in Stonington, Connecticut at the moment is 46.14 ppm.

What is the nitrogen dioxide (NO₂) level in Stonington, Connecticut at the moment?

Nitrogen dioxide (NO₂) level in Stonington, Connecticut at the moment is 7.606 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T19:00:00.000Z	49 \| good	8.689 \| good	13.011 \| good	46.375 \| good	0.275 \| good	9.27 \| good	0.244 \| good
2026-06-27T20:00:00.000Z	44 \| good	8.056 \| good	19.241 \| good	42.063 \| good	0.201 \| good	7.628 \| good	0.224 \| good
2026-06-27T21:00:00.000Z	49 \| good	8.74 \| good	24.548 \| good	47.255 \| good	0.201 \| good	5.902 \| good	0.208 \| good
2026-06-27T22:00:00.000Z	49 \| good	8.672 \| good	25.535 \| good	47.099 \| good	0.25 \| good	4.758 \| good	0.227 \| good
2026-06-27T23:00:00.000Z	49 \| good	9.028 \| good	28.458 \| good	47.234 \| good	0.253 \| good	5.576 \| good	0.219 \| good
2026-06-28T00:00:00.000Z	44 \| good	8.315 \| good	25.635 \| good	41.312 \| good	0.218 \| good	5.968 \| good	0.26 \| good
2026-06-28T01:00:00.000Z	44 \| good	7.958 \| good	26.485 \| good	42.922 \| good	0.236 \| good	4.072 \| good	0.237 \| good
2026-06-28T02:00:00.000Z	54 \| moderate	10.574 \| good	35.175 \| good	39.343 \| good	0.164 \| good	4.343 \| good	0.256 \| good
2026-06-28T03:00:00.000Z	58 \| moderate	13.003 \| fine	58.552 \| fine	46.67 \| good	0.343 \| good	5.684 \| good	0.217 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	12.285 \| fine	33.262 \| good	34.435 \| good	0.164 \| good	6.321 \| good	0.297 \| good
2026-06-28T05:00:00.000Z	54 \| moderate	10.935 \| good	34.522 \| good	30.743 \| good	0.167 \| good	9.252 \| good	0.314 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.148 \| good	34.199 \| good	28.706 \| good	0.166 \| good	8.101 \| good	0.307 \| good
2026-06-28T07:00:00.000Z	56 \| moderate	11.548 \| good	46.026 \| good	28.051 \| good	0.379 \| good	4.219 \| good	0.276 \| good
2026-06-28T08:00:00.000Z	56 \| moderate	11.853 \| good	57.38 \| fine	26.045 \| good	0.177 \| good	7.017 \| good	0.27 \| good
2026-06-28T09:00:00.000Z	58 \| moderate	13.465 \| fine	43.976 \| good	25.644 \| good	0.337 \| good	7.83 \| good	0.253 \| good
2026-06-28T10:00:00.000Z	56 \| moderate	11.788 \| good	63.202 \| fine	25.44 \| good	0.177 \| good	6.056 \| good	0.261 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	11.021 \| good	24.279 \| good	23.79 \| good	0.324 \| good	8.915 \| good	0.302 \| good
2026-06-28T12:00:00.000Z	56 \| moderate	11.933 \| good	48.471 \| good	22.478 \| good	0.49 \| good	4.084 \| good	0.241 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.374 \| good	50.394 \| good	20.515 \| good	0.463 \| good	5.64 \| good	0.212 \| good
2026-06-28T14:00:00.000Z	52 \| moderate	10.376 \| good	41.607 \| good	24.19 \| good	0.227 \| good	3.402 \| good	0.199 \| good
2026-06-28T15:00:00.000Z	49 \| good	9.361 \| good	43.771 \| good	27.327 \| good	0.197 \| good	3.798 \| good	0.18 \| good
2026-06-28T16:00:00.000Z	49 \| good	8.855 \| good	30.452 \| good	42.33 \| good	0.256 \| good	3.713 \| good	0.198 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	9.711 \| good	25.107 \| good	42.216 \| good	0.18 \| good	4.172 \| good	0.206 \| good
2026-06-28T18:00:00.000Z	49 \| good	8.891 \| good	30.875 \| good	49.839 \| good	0.181 \| good	3.792 \| good	0.2 \| good
2026-06-28T19:00:00.000Z	47 \| good	7.949 \| good	23.766 \| good	51.098 \| good	0.219 \| good	2.897 \| good	0.218 \| good
2026-06-28T20:00:00.000Z	54 \| moderate	8.833 \| good	26.944 \| good	56.182 \| fine	0.217 \| good	2.888 \| good	0.2 \| good
2026-06-28T21:00:00.000Z	47 \| good	7.32 \| good	21.712 \| good	50.697 \| good	0.252 \| good	4.032 \| good	0.188 \| good
2026-06-28T22:00:00.000Z	44 \| good	7.428 \| good	20.055 \| good	47.747 \| good	0.234 \| good	4.119 \| good	0.233 \| good
2026-06-28T23:00:00.000Z	43 \| good	6.826 \| good	15.746 \| good	46.255 \| good	0.233 \| good	5.418 \| good	0.213 \| good
2026-06-29T00:00:00.000Z	44 \| good	6.397 \| good	14.588 \| good	47.318 \| good	0.234 \| good	5.952 \| good	0.336 \| good
2026-06-29T01:00:00.000Z	44 \| good	6.156 \| good	16.771 \| good	48.475 \| good	0.146 \| good	5.28 \| good	0.252 \| good
2026-06-29T02:00:00.000Z	43 \| good	6.225 \| good	11.547 \| good	46.094 \| good	0.165 \| good	5.147 \| good	0.252 \| good
2026-06-29T03:00:00.000Z	52 \| moderate	9.946 \| good	44.455 \| good	30.472 \| good	0.254 \| good	2.449 \| good	0.17 \| good
2026-06-29T04:00:00.000Z	36 \| good	6.037 \| good	15.427 \| good	38.544 \| good	0.366 \| good	5.546 \| good	0.298 \| good
2026-06-29T05:00:00.000Z	38 \| good	6.561 \| good	20.017 \| good	36.848 \| good	0.285 \| good	8.345 \| good	0.235 \| good
2026-06-29T06:00:00.000Z	38 \| good	6.68 \| good	23.726 \| good	25.874 \| good	0.179 \| good	8.954 \| good	0.232 \| good
2026-06-29T07:00:00.000Z	38 \| good	6.711 \| good	17.782 \| good	32.33 \| good	0.328 \| good	8.762 \| good	0.22 \| good
2026-06-29T08:00:00.000Z	38 \| good	7.068 \| good	27.464 \| good	29.403 \| good	0.179 \| good	9.924 \| good	0.219 \| good
2026-06-29T09:00:00.000Z	33 \| good	6.393 \| good	20.922 \| good	28.388 \| good	0.179 \| good	10.589 \| good	0.258 \| good
2026-06-29T10:00:00.000Z	44 \| good	8.08 \| good	28.304 \| good	24.884 \| good	0.196 \| good	14.577 \| good	0.428 \| good
2026-06-29T11:00:00.000Z	44 \| good	7.61 \| good	30.371 \| good	23.863 \| good	0.177 \| good	10.576 \| good	0.428 \| good
2026-06-29T12:00:00.000Z	49 \| good	8.866 \| good	25.045 \| good	27.039 \| good	0.199 \| good	7.119 \| good	0.333 \| good
2026-06-29T13:00:00.000Z	44 \| good	8.246 \| good	25.127 \| good	29.619 \| good	0.345 \| good	9.748 \| good	0.315 \| good
2026-06-29T14:00:00.000Z	38 \| good	6.802 \| good	29.432 \| good	22.288 \| good	0.202 \| good	8.597 \| good	0.27 \| good
2026-06-29T15:00:00.000Z	44 \| good	8.057 \| good	34.899 \| good	28.327 \| good	0.187 \| good	6.241 \| good	0.27 \| good
2026-06-29T16:00:00.000Z	54 \| moderate	10.848 \| good	36.62 \| good	29.922 \| good	0.188 \| good	7.382 \| good	0.252 \| good
2026-06-29T17:00:00.000Z	54 \| moderate	11.065 \| good	33.129 \| good	42.291 \| good	0.199 \| good	6.337 \| good	0.174 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	11.413 \| good	34.768 \| good	46.14 \| good	0.222 \| good	7.606 \| good	0.2 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	11.413 \| good	34.768 \| good	46.14 \| good	0.222 \| good	7.606 \| good	0.2 \| good
2026-06-29T19:00:00.000Z	61 \| moderate	10.674 \| good	47.087 \| good	57.911 \| fine	0.259 \| good	1.428 \| good	0.183 \| good
2026-06-29T20:00:00.000Z	64 \| moderate	11.725 \| good	51.825 \| good	59.362 \| fine	0.253 \| good	1.48 \| good	0.182 \| good
2026-06-29T21:00:00.000Z	54 \| moderate	11.29 \| good	50.238 \| good	55.497 \| fine	0.234 \| good	1.696 \| good	0.183 \| good
2026-06-29T22:00:00.000Z	52 \| moderate	10.493 \| good	46.558 \| good	52.547 \| good	0.213 \| good	2.155 \| good	0.186 \| good
2026-06-29T23:00:00.000Z	52 \| moderate	10.089 \| good	44.87 \| good	49.192 \| good	0.197 \| good	2.679 \| good	0.188 \| good
2026-06-30T00:00:00.000Z	54 \| moderate	10.843 \| good	47.837 \| good	44.423 \| good	0.196 \| good	2.894 \| good	0.185 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	10.394 \| good	45.966 \| good	38.484 \| good	0.204 \| good	2.714 \| good	0.178 \| good
2026-06-30T02:00:00.000Z	54 \| moderate	11.13 \| good	49.435 \| good	33.286 \| good	0.225 \| good	2.397 \| good	0.17 \| good
2026-06-30T03:00:00.000Z	56 \| moderate	11.55 \| good	50.755 \| good	32.503 \| good	0.241 \| good	2.234 \| good	0.163 \| good
2026-06-30T04:00:00.000Z	52 \| moderate	10.38 \| good	45.763 \| good	32.205 \| good	0.252 \| good	2.172 \| good	0.158 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.888 \| good	39.052 \| good	27.054 \| good	0.256 \| good	2.186 \| good	0.154 \| good
2026-06-30T06:00:00.000Z	49 \| good	9.175 \| good	41 \| good	24.512 \| good	0.274 \| good	2.221 \| good	0.149 \| good
2026-06-30T07:00:00.000Z	49 \| good	8.776 \| good	38.428 \| good	21.909 \| good	0.294 \| good	2.417 \| good	0.146 \| good
2026-06-30T08:00:00.000Z	49 \| good	8.675 \| good	38.169 \| good	23.891 \| good	0.308 \| good	2.663 \| good	0.143 \| good
2026-06-30T09:00:00.000Z	49 \| good	8.842 \| good	38.761 \| good	27.989 \| good	0.326 \| good	2.924 \| good	0.14 \| good
2026-06-30T10:00:00.000Z	49 \| good	9.3 \| good	41.517 \| good	26.863 \| good	0.33 \| good	3.422 \| good	0.139 \| good
2026-06-30T11:00:00.000Z	49 \| good	8.559 \| good	37.721 \| good	29.128 \| good	0.316 \| good	3.546 \| good	0.141 \| good
2026-06-30T12:00:00.000Z	44 \| good	7.552 \| good	33.104 \| good	30.817 \| good	0.332 \| good	3.748 \| good	0.148 \| good
2026-06-30T13:00:00.000Z	38 \| good	7.348 \| good	32.331 \| good	34.182 \| good	0.371 \| good	3.889 \| good	0.158 \| good
2026-06-30T14:00:00.000Z	35 \| good	6.473 \| good	28.828 \| good	37.929 \| good	0.397 \| good	3.729 \| good	0.165 \| good
2026-06-30T15:00:00.000Z	39 \| good	6.805 \| good	30.371 \| good	41.896 \| good	0.402 \| good	3.374 \| good	0.167 \| good
2026-06-30T16:00:00.000Z	43 \| good	5.912 \| good	25.734 \| good	45.754 \| good	0.4 \| good	2.854 \| good	0.164 \| good
2026-06-30T17:00:00.000Z	45 \| good	4.679 \| good	20.434 \| good	48.878 \| good	0.388 \| good	2.26 \| good	0.159 \| good
2026-06-30T18:00:00.000Z	48 \| good	4.38 \| good	19.362 \| good	51.661 \| good	0.375 \| good	1.674 \| good	0.152 \| good
2026-06-30T19:00:00.000Z	43 \| good	5.792 \| good	24.833 \| good	46.331 \| good	0.374 \| good	1.265 \| good	0.144 \| good
2026-06-30T20:00:00.000Z	44 \| good	6.646 \| good	29.323 \| good	48.253 \| good	0.332 \| good	1.048 \| good	0.135 \| good
2026-06-30T21:00:00.000Z	44 \| good	6.556 \| good	29.121 \| good	47.386 \| good	0.238 \| good	1.036 \| good	0.128 \| good
2026-06-30T22:00:00.000Z	39 \| good	5.314 \| good	22.847 \| good	42.152 \| good	0.149 \| good	1.209 \| good	0.127 \| good
2026-06-30T23:00:00.000Z	35 \| good	5.024 \| good	21.606 \| good	38.259 \| good	0.099 \| good	1.519 \| good	0.127 \| good
2026-07-01T00:00:00.000Z	44 \| good	7.644 \| good	33.498 \| good	37.927 \| good	0.085 \| good	1.729 \| good	0.127 \| good
2026-07-01T01:00:00.000Z	38 \| good	6.757 \| good	29.812 \| good	34.971 \| good	0.099 \| good	1.672 \| good	0.125 \| good
2026-07-01T02:00:00.000Z	38 \| good	6.96 \| good	30.786 \| good	31.853 \| good	0.115 \| good	1.589 \| good	0.124 \| good
2026-07-01T03:00:00.000Z	38 \| good	7.118 \| good	31.727 \| good	33.955 \| good	0.129 \| good	1.557 \| good	0.123 \| good
2026-07-01T04:00:00.000Z	38 \| good	6.717 \| good	29.816 \| good	35.682 \| good	0.143 \| good	1.583 \| good	0.123 \| good
2026-07-01T05:00:00.000Z	33 \| good	6.394 \| good	28.184 \| good	36.021 \| good	0.165 \| good	1.73 \| good	0.123 \| good
2026-07-01T06:00:00.000Z	33 \| good	6.462 \| good	28.727 \| good	35.332 \| good	0.194 \| good	1.9 \| good	0.122 \| good
2026-07-01T07:00:00.000Z	38 \| good	6.706 \| good	29.673 \| good	34.059 \| good	0.223 \| good	1.983 \| good	0.122 \| good
2026-07-01T08:00:00.000Z	44 \| good	7.855 \| good	34.489 \| good	30.863 \| good	0.244 \| good	2.035 \| good	0.122 \| good
2026-07-01T09:00:00.000Z	38 \| good	7.479 \| good	32.88 \| good	22.872 \| good	0.256 \| good	2.087 \| good	0.121 \| good
2026-07-01T10:00:00.000Z	44 \| good	7.583 \| good	33.549 \| good	21.962 \| good	0.25 \| good	2.129 \| good	0.122 \| good
2026-07-01T11:00:00.000Z	44 \| good	7.649 \| good	33.696 \| good	24.164 \| good	0.239 \| good	2.006 \| good	0.124 \| good
2026-07-01T12:00:00.000Z	44 \| good	7.654 \| good	33.698 \| good	32.635 \| good	0.245 \| good	1.903 \| good	0.128 \| good
2026-07-01T13:00:00.000Z	49 \| good	8.805 \| good	38.749 \| good	41.44 \| good	0.268 \| good	1.867 \| good	0.134 \| good
2026-07-01T14:00:00.000Z	54 \| moderate	11.066 \| good	48.796 \| good	47.769 \| good	0.281 \| good	1.721 \| good	0.139 \| good
2026-07-01T15:00:00.000Z	60 \| moderate	13.709 \| fine	61.306 \| fine	57.365 \| fine	0.282 \| good	1.46 \| good	0.142 \| good
2026-07-01T16:00:00.000Z	105 \| sensitive	14.71 \| fine	65.121 \| fine	71.745 \| moderate	0.277 \| good	1.164 \| good	0.141 \| good
2026-07-01T17:00:00.000Z	122 \| sensitive	15.593 \| fine	69.306 \| fine	77.355 \| moderate	0.272 \| good	0.946 \| good	0.14 \| good
2026-07-01T18:00:00.000Z	140 \| sensitive	14.912 \| fine	66.632 \| fine	82.449 \| moderate	0.262 \| good	0.842 \| good	0.139 \| good

Live air quality index in Stonington, Connecticut today

Major air pollutants in Stonington, 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

Westerly, Rhode Island

Groton, Connecticut

Ledyard, Connecticut

New London, Connecticut

Waterford, Connecticut

Montville, Connecticut

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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