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

Currently, Old Saybrook, Connecticut has a sulfur dioxide (SO2) concentration of 0.331 ppb.

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

The current ozone (O3) level in Old Saybrook, Connecticut at the moment is 20.292 ppm.

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

Nitrogen dioxide (NO2) level in Old Saybrook, Connecticut at the moment is 17.426 ppb.

Live air quality index in Old Saybrook, Connecticut today

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

PM2.5 levels in Old Saybrook, Connecticut are currently 15.288 μg/m3.

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

The PM10 concentration in Old Saybrook, Connecticut is 69.112 μg/m3 at the moment.

Stay updated with real-time air quality in Old Saybrook, 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

Old Saybrook, Connecticut

Last updated: ... (Local time)

Major air pollutants in Old Saybrook, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

15.29 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

69.11 μg/m³

155

255

425

605+

Ozone (O₃)

20.29 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.43 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.39 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Old Saybrook, Connecticut

Get Live Pollen Counts

Old Saybrook, Connecticut

Scroll To Air Quality Map

Track live Old Saybrook, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T02:00:00.000Z	27 \| good	3.481 \| good	23.622 \| good	28.894 \| good	0.241 \| good	5.612 \| good	0.2 \| good
2025-12-27T03:00:00.000Z	26 \| good	3.303 \| good	22.865 \| good	28.258 \| good	0.224 \| good	6.652 \| good	0.172 \| good
2025-12-27T04:00:00.000Z	25 \| good	3.106 \| good	25.553 \| good	27.04 \| good	0.225 \| good	5.388 \| good	0.2 \| good
2025-12-27T05:00:00.000Z	29 \| good	3.546 \| good	16.764 \| good	31.27 \| good	0.226 \| good	5.94 \| good	0.231 \| good
2025-12-27T06:00:00.000Z	27 \| good	3.194 \| good	10.54 \| good	28.514 \| good	0.209 \| good	5.724 \| good	0.231 \| good
2025-12-27T07:00:00.000Z	26 \| good	3.603 \| good	21.75 \| good	27.534 \| good	0.21 \| good	6.341 \| good	0.2 \| good
2025-12-27T08:00:00.000Z	29 \| good	4.26 \| good	13.963 \| good	31.464 \| good	0.19 \| good	4.302 \| good	0.2 \| good
2025-12-27T09:00:00.000Z	26 \| good	3.494 \| good	19.74 \| good	28.352 \| good	0.248 \| good	5.637 \| good	0.172 \| good
2025-12-27T10:00:00.000Z	25 \| good	3.455 \| good	17.093 \| good	26.722 \| good	0.243 \| good	4.597 \| good	0.171 \| good
2025-12-27T11:00:00.000Z	27 \| good	4.883 \| good	15.24 \| good	24.227 \| good	0.226 \| good	3.874 \| good	0.158 \| good
2025-12-27T12:00:00.000Z	27 \| good	3.379 \| good	10.38 \| good	28.953 \| good	0.157 \| good	2.685 \| good	0.158 \| good
2025-12-27T13:00:00.000Z	29 \| good	3.353 \| good	18.246 \| good	30.622 \| good	0.173 \| good	4.123 \| good	0.157 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.708 \| good	11.085 \| good	28.528 \| good	0.196 \| good	6.278 \| good	0.228 \| good
2025-12-27T15:00:00.000Z	30 \| good	3.715 \| good	10.606 \| good	31.893 \| good	0.18 \| good	8.554 \| good	0.228 \| good
2025-12-27T16:00:00.000Z	28 \| good	3.257 \| good	8.574 \| good	29.84 \| good	0.165 \| good	7.26 \| good	0.244 \| good
2025-12-27T17:00:00.000Z	30 \| good	3.42 \| good	7.614 \| good	32.158 \| good	0.165 \| good	7.02 \| good	0.257 \| good
2025-12-27T18:00:00.000Z	31 \| good	3.533 \| good	4.995 \| good	33.414 \| good	0.18 \| good	6.98 \| good	0.216 \| good
2025-12-27T19:00:00.000Z	31 \| good	3.266 \| good	5.85 \| good	33.046 \| good	0.18 \| good	6.358 \| good	0.216 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.216 \| good	7.051 \| good	34.259 \| good	0.18 \| good	6.683 \| good	0.198 \| good
2025-12-27T21:00:00.000Z	30 \| good	3.597 \| good	6.536 \| good	31.894 \| good	0.18 \| good	5.82 \| good	0.225 \| good
2025-12-27T22:00:00.000Z	31 \| good	3.706 \| good	7.112 \| good	34.492 \| good	0.178 \| good	8.484 \| good	0.297 \| good
2025-12-27T23:00:00.000Z	31 \| good	5.002 \| good	6.791 \| good	32.967 \| good	0.23 \| good	6.345 \| good	0.371 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.772 \| good	22.966 \| good	25.585 \| good	0.237 \| good	14.066 \| good	0.467 \| good
2025-12-28T01:00:00.000Z	33 \| good	6.16 \| good	17.732 \| good	28.857 \| good	0.365 \| good	16.739 \| good	0.594 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.799 \| good	22.585 \| good	20.454 \| good	0.436 \| good	16.462 \| good	0.614 \| good
2025-12-28T03:00:00.000Z	52 \| moderate	10.371 \| good	46.279 \| good	14.798 \| good	0.951 \| good	10.204 \| good	0.219 \| good
2025-12-28T04:00:00.000Z	49 \| good	9.343 \| good	36.788 \| good	16.377 \| good	0.502 \| good	12.778 \| good	0.577 \| good
2025-12-28T05:00:00.000Z	56 \| moderate	12.028 \| good	38.561 \| good	19.992 \| good	0.344 \| good	21.682 \| good	0.561 \| good
2025-12-28T06:00:00.000Z	58 \| moderate	12.568 \| fine	27.753 \| good	15.591 \| good	0.519 \| good	23.685 \| good	0.384 \| good
2025-12-28T07:00:00.000Z	69 \| moderate	18.569 \| fine	38.757 \| good	13.507 \| good	0.474 \| good	20.755 \| good	0.434 \| good
2025-12-28T08:00:00.000Z	64 \| moderate	15.96 \| fine	23.823 \| good	17.125 \| good	0.29 \| good	26.829 \| good	0.335 \| good
2025-12-28T09:00:00.000Z	54 \| moderate	11.468 \| good	22.792 \| good	9.099 \| good	0.526 \| good	14.579 \| good	0.403 \| good
2025-12-28T10:00:00.000Z	60 \| moderate	13.935 \| fine	33.694 \| good	9.445 \| good	0.502 \| good	28.41 \| good	0.527 \| good
2025-12-28T11:00:00.000Z	69 \| moderate	19.109 \| fine	56.317 \| fine	13.831 \| good	0.355 \| good	29.108 \| good	0.436 \| good
2025-12-28T12:00:00.000Z	56 \| moderate	11.907 \| good	31.018 \| good	18.483 \| good	0.393 \| good	32.248 \| good	0.45 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	11.244 \| good	44.724 \| good	15.22 \| good	0.392 \| good	29.798 \| good	0.422 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.717 \| good	34.447 \| good	21.575 \| good	0.481 \| good	25.793 \| good	0.614 \| good
2025-12-28T15:00:00.000Z	49 \| good	8.647 \| good	27.651 \| good	14.194 \| good	0.295 \| good	12.437 \| good	0.368 \| good
2025-12-28T16:00:00.000Z	49 \| good	9.012 \| good	26.357 \| good	26.431 \| good	0.257 \| good	12.156 \| good	0.296 \| good
2025-12-28T17:00:00.000Z	44 \| good	7.872 \| good	19.725 \| good	25.455 \| good	0.246 \| good	14.16 \| good	0.241 \| good
2025-12-28T18:00:00.000Z	49 \| good	8.771 \| good	30.597 \| good	25.815 \| good	0.279 \| good	13.099 \| good	0.227 \| good
2025-12-28T19:00:00.000Z	45 \| good	8.396 \| good	49.147 \| good	28.076 \| good	0.249 \| good	15.79 \| good	0.283 \| good
2025-12-28T20:00:00.000Z	54 \| moderate	10.971 \| good	53.966 \| good	24.15 \| good	0.273 \| good	16.655 \| good	0.311 \| good
2025-12-28T21:00:00.000Z	54 \| moderate	11.173 \| good	55.457 \| fine	20.819 \| good	0.261 \| good	14.414 \| good	0.325 \| good
2025-12-28T22:00:00.000Z	62 \| moderate	14.526 \| fine	59.899 \| fine	11.535 \| good	0.222 \| good	27.544 \| good	0.438 \| good
2025-12-28T23:00:00.000Z	54 \| moderate	10.769 \| good	48.339 \| good	17.861 \| good	0.255 \| good	24.105 \| good	0.45 \| good
2025-12-29T00:00:00.000Z	62 \| moderate	15.288 \| fine	69.112 \| fine	20.292 \| good	0.331 \| good	17.426 \| good	0.386 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	15.288 \| fine	69.112 \| fine	20.292 \| good	0.331 \| good	17.426 \| good	0.386 \| good
2025-12-29T02:00:00.000Z	52 \| moderate	10.092 \| good	44.801 \| good	23.385 \| good	1.616 \| good	15.827 \| good	0.201 \| good
2025-12-29T03:00:00.000Z	38 \| good	6.85 \| good	30.351 \| good	23.482 \| good	0.966 \| good	9.957 \| good	0.176 \| good
2025-12-29T04:00:00.000Z	33 \| good	6.425 \| good	28.861 \| good	28.353 \| good	0.723 \| good	7.098 \| good	0.163 \| good
2025-12-29T05:00:00.000Z	33 \| good	5.732 \| good	24.885 \| good	34.704 \| good	0.481 \| good	4.239 \| good	0.149 \| good
2025-12-29T06:00:00.000Z	34 \| good	4.294 \| good	18.889 \| good	37.005 \| good	0.238 \| good	1.38 \| good	0.136 \| good
2025-12-29T07:00:00.000Z	34 \| good	3.967 \| good	17.595 \| good	37.438 \| good	0.23 \| good	1.14 \| good	0.133 \| good
2025-12-29T08:00:00.000Z	34 \| good	3.689 \| good	16.154 \| good	37.006 \| good	0.223 \| good	0.9 \| good	0.13 \| good
2025-12-29T09:00:00.000Z	28 \| good	3.772 \| good	16.224 \| good	30.095 \| good	0.215 \| good	0.66 \| good	0.126 \| good
2025-12-29T10:00:00.000Z	29 \| good	3.992 \| good	17.563 \| good	31.396 \| good	0.336 \| good	1.518 \| good	0.134 \| good
2025-12-29T11:00:00.000Z	32 \| good	3.878 \| good	16.948 \| good	34.812 \| good	0.457 \| good	2.376 \| good	0.141 \| good
2025-12-29T12:00:00.000Z	32 \| good	3.845 \| good	16.86 \| good	34.636 \| good	0.578 \| good	3.234 \| good	0.149 \| good
2025-12-29T13:00:00.000Z	33 \| good	4.594 \| good	19.859 \| good	35.687 \| good	0.588 \| good	3.563 \| good	0.153 \| good
2025-12-29T14:00:00.000Z	31 \| good	5.433 \| good	23.032 \| good	33.598 \| good	0.598 \| good	3.891 \| good	0.158 \| good
2025-12-29T15:00:00.000Z	33 \| good	5.522 \| good	23.85 \| good	34.429 \| good	0.608 \| good	4.22 \| good	0.162 \| good
2025-12-29T16:00:00.000Z	33 \| good	5.584 \| good	24.026 \| good	35.248 \| good	0.558 \| good	4.076 \| good	0.16 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.848 \| good	25.203 \| good	33.84 \| good	0.508 \| good	3.932 \| good	0.157 \| good
2025-12-29T18:00:00.000Z	33 \| good	6.231 \| good	27.929 \| good	33.156 \| good	0.458 \| good	3.788 \| good	0.155 \| good
2025-12-29T19:00:00.000Z	38 \| good	6.839 \| good	30.538 \| good	31.479 \| good	0.793 \| good	5.964 \| good	0.164 \| good
2025-12-29T20:00:00.000Z	44 \| good	7.78 \| good	34.207 \| good	28.974 \| good	1.127 \| good	8.139 \| good	0.174 \| good
2025-12-29T21:00:00.000Z	37 \| good	4.66 \| good	20.649 \| good	39.508 \| good	1.462 \| good	10.315 \| good	0.184 \| good
2025-12-29T22:00:00.000Z	35 \| good	4.073 \| good	17.933 \| good	37.915 \| good	1.453 \| good	8.099 \| good	0.18 \| good
2025-12-29T23:00:00.000Z	30 \| good	4.389 \| good	19.184 \| good	32.335 \| good	1.444 \| good	5.882 \| good	0.175 \| good
2025-12-30T00:00:00.000Z	19 \| good	2.306 \| good	9.28 \| good	20.108 \| good	1.436 \| good	3.666 \| good	0.17 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.862 \| good	7.957 \| good	20.173 \| good	1.198 \| good	3.329 \| good	0.167 \| good
2025-12-30T02:00:00.000Z	16 \| good	1.765 \| good	7.201 \| good	16.764 \| good	0.959 \| good	2.992 \| good	0.165 \| good
2025-12-30T03:00:00.000Z	16 \| good	1.817 \| good	7.27 \| good	16.637 \| good	0.721 \| good	2.656 \| good	0.162 \| good
2025-12-30T04:00:00.000Z	16 \| good	1.916 \| good	8.005 \| good	17.31 \| good	0.616 \| good	2.296 \| good	0.156 \| good
2025-12-30T05:00:00.000Z	20 \| good	1.732 \| good	7.2 \| good	22.405 \| good	0.51 \| good	1.937 \| good	0.151 \| good
2025-12-30T06:00:00.000Z	27 \| good	1.321 \| good	5.17 \| good	28.761 \| good	0.404 \| good	1.578 \| good	0.146 \| good
2025-12-30T07:00:00.000Z	30 \| good	0.896 \| good	3.344 \| good	32.094 \| good	0.34 \| good	1.321 \| good	0.143 \| good
2025-12-30T08:00:00.000Z	31 \| good	1.071 \| good	4.249 \| good	33.352 \| good	0.275 \| good	1.065 \| good	0.14 \| good
2025-12-30T09:00:00.000Z	30 \| good	1.04 \| good	4.127 \| good	31.724 \| good	0.211 \| good	0.809 \| good	0.137 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.957 \| good	3.89 \| good	30.26 \| good	0.228 \| good	0.949 \| good	0.139 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.454 \| good	1.898 \| good	31.568 \| good	0.245 \| good	1.09 \| good	0.141 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.291 \| good	0.977 \| good	32.22 \| good	0.262 \| good	1.23 \| good	0.143 \| good
2025-12-30T13:00:00.000Z	32 \| good	0.286 \| good	1 \| good	34.617 \| good	0.279 \| good	1.301 \| good	0.144 \| good
2025-12-30T14:00:00.000Z	31 \| good	0.325 \| good	1.152 \| good	34.405 \| good	0.297 \| good	1.372 \| good	0.145 \| good
2025-12-30T15:00:00.000Z	32 \| good	0.403 \| good	1.328 \| good	35.253 \| good	0.314 \| good	1.444 \| good	0.146 \| good
2025-12-30T16:00:00.000Z	33 \| good	0.667 \| good	2.198 \| good	35.521 \| good	0.302 \| good	1.336 \| good	0.144 \| good
2025-12-30T17:00:00.000Z	33 \| good	0.895 \| good	3.737 \| good	36.214 \| good	0.29 \| good	1.228 \| good	0.142 \| good
2025-12-30T18:00:00.000Z	35 \| good	1.007 \| good	4.073 \| good	38.312 \| good	0.278 \| good	1.121 \| good	0.14 \| good
2025-12-30T19:00:00.000Z	37 \| good	0.959 \| good	3.914 \| good	39.88 \| good	0.298 \| good	1.333 \| good	0.138 \| good
2025-12-30T20:00:00.000Z	40 \| good	0.763 \| good	2.937 \| good	42.87 \| good	0.318 \| good	1.545 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	39 \| good	0.829 \| good	3.128 \| good	42.438 \| good	0.338 \| good	1.757 \| good	0.135 \| good
2025-12-30T22:00:00.000Z	37 \| good	0.917 \| good	3.715 \| good	40.465 \| good	0.396 \| good	1.891 \| good	0.134 \| good
2025-12-30T23:00:00.000Z	37 \| good	0.533 \| good	2 \| good	39.606 \| good	0.453 \| good	2.024 \| good	0.134 \| good
2025-12-31T00:00:00.000Z	38 \| good	1.269 \| good	1.354 \| good	40.936 \| good	0.508 \| good	2.149 \| good	0.133 \| good
2025-12-31T01:00:00.000Z	34 \| good	0.454 \| good	1.977 \| good	36.972 \| good	0.501 \| good	2.111 \| good	0.133 \| good

Old Saybrook

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

0.36ppm

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 Old Saybrook, Connecticut?

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

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

In the past 24 hours, the air quality in Old Saybrook, Connecticut was at its worst at 11:00:00 on 2025-12-28.

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

In the last 24 hours, the best air quality in Old Saybrook, Connecticut was observed at 01:00:00 on 2025-12-28.

What is the AQI in Old Saybrook, Connecticut right now?

As of now, the AQI in Old Saybrook, Connecticut is 62, indicating Moderate conditions.

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

Old Saybrook, Connecticut air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in Old Saybrook, Connecticut are currently 15.288 μg/m³.

What is the PM₁₀ level in Old Saybrook, Connecticut at the moment?

The PM₁₀ concentration in Old Saybrook, Connecticut is 69.112 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Old Saybrook, Connecticut is 0.386 ppm.

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

Currently, Old Saybrook, Connecticut has a sulfur dioxide (SO₂) concentration of 0.331 ppb.

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

The current ozone (O₃) level in Old Saybrook, Connecticut at the moment is 20.292 ppm.

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

Nitrogen dioxide (NO₂) level in Old Saybrook, Connecticut at the moment is 17.426 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T02:00:00.000Z	27 \| good	3.481 \| good	23.622 \| good	28.894 \| good	0.241 \| good	5.612 \| good	0.2 \| good
2025-12-27T03:00:00.000Z	26 \| good	3.303 \| good	22.865 \| good	28.258 \| good	0.224 \| good	6.652 \| good	0.172 \| good
2025-12-27T04:00:00.000Z	25 \| good	3.106 \| good	25.553 \| good	27.04 \| good	0.225 \| good	5.388 \| good	0.2 \| good
2025-12-27T05:00:00.000Z	29 \| good	3.546 \| good	16.764 \| good	31.27 \| good	0.226 \| good	5.94 \| good	0.231 \| good
2025-12-27T06:00:00.000Z	27 \| good	3.194 \| good	10.54 \| good	28.514 \| good	0.209 \| good	5.724 \| good	0.231 \| good
2025-12-27T07:00:00.000Z	26 \| good	3.603 \| good	21.75 \| good	27.534 \| good	0.21 \| good	6.341 \| good	0.2 \| good
2025-12-27T08:00:00.000Z	29 \| good	4.26 \| good	13.963 \| good	31.464 \| good	0.19 \| good	4.302 \| good	0.2 \| good
2025-12-27T09:00:00.000Z	26 \| good	3.494 \| good	19.74 \| good	28.352 \| good	0.248 \| good	5.637 \| good	0.172 \| good
2025-12-27T10:00:00.000Z	25 \| good	3.455 \| good	17.093 \| good	26.722 \| good	0.243 \| good	4.597 \| good	0.171 \| good
2025-12-27T11:00:00.000Z	27 \| good	4.883 \| good	15.24 \| good	24.227 \| good	0.226 \| good	3.874 \| good	0.158 \| good
2025-12-27T12:00:00.000Z	27 \| good	3.379 \| good	10.38 \| good	28.953 \| good	0.157 \| good	2.685 \| good	0.158 \| good
2025-12-27T13:00:00.000Z	29 \| good	3.353 \| good	18.246 \| good	30.622 \| good	0.173 \| good	4.123 \| good	0.157 \| good
2025-12-27T14:00:00.000Z	27 \| good	3.708 \| good	11.085 \| good	28.528 \| good	0.196 \| good	6.278 \| good	0.228 \| good
2025-12-27T15:00:00.000Z	30 \| good	3.715 \| good	10.606 \| good	31.893 \| good	0.18 \| good	8.554 \| good	0.228 \| good
2025-12-27T16:00:00.000Z	28 \| good	3.257 \| good	8.574 \| good	29.84 \| good	0.165 \| good	7.26 \| good	0.244 \| good
2025-12-27T17:00:00.000Z	30 \| good	3.42 \| good	7.614 \| good	32.158 \| good	0.165 \| good	7.02 \| good	0.257 \| good
2025-12-27T18:00:00.000Z	31 \| good	3.533 \| good	4.995 \| good	33.414 \| good	0.18 \| good	6.98 \| good	0.216 \| good
2025-12-27T19:00:00.000Z	31 \| good	3.266 \| good	5.85 \| good	33.046 \| good	0.18 \| good	6.358 \| good	0.216 \| good
2025-12-27T20:00:00.000Z	31 \| good	3.216 \| good	7.051 \| good	34.259 \| good	0.18 \| good	6.683 \| good	0.198 \| good
2025-12-27T21:00:00.000Z	30 \| good	3.597 \| good	6.536 \| good	31.894 \| good	0.18 \| good	5.82 \| good	0.225 \| good
2025-12-27T22:00:00.000Z	31 \| good	3.706 \| good	7.112 \| good	34.492 \| good	0.178 \| good	8.484 \| good	0.297 \| good
2025-12-27T23:00:00.000Z	31 \| good	5.002 \| good	6.791 \| good	32.967 \| good	0.23 \| good	6.345 \| good	0.371 \| good
2025-12-28T00:00:00.000Z	33 \| good	5.772 \| good	22.966 \| good	25.585 \| good	0.237 \| good	14.066 \| good	0.467 \| good
2025-12-28T01:00:00.000Z	33 \| good	6.16 \| good	17.732 \| good	28.857 \| good	0.365 \| good	16.739 \| good	0.594 \| good
2025-12-28T02:00:00.000Z	44 \| good	7.799 \| good	22.585 \| good	20.454 \| good	0.436 \| good	16.462 \| good	0.614 \| good
2025-12-28T03:00:00.000Z	52 \| moderate	10.371 \| good	46.279 \| good	14.798 \| good	0.951 \| good	10.204 \| good	0.219 \| good
2025-12-28T04:00:00.000Z	49 \| good	9.343 \| good	36.788 \| good	16.377 \| good	0.502 \| good	12.778 \| good	0.577 \| good
2025-12-28T05:00:00.000Z	56 \| moderate	12.028 \| good	38.561 \| good	19.992 \| good	0.344 \| good	21.682 \| good	0.561 \| good
2025-12-28T06:00:00.000Z	58 \| moderate	12.568 \| fine	27.753 \| good	15.591 \| good	0.519 \| good	23.685 \| good	0.384 \| good
2025-12-28T07:00:00.000Z	69 \| moderate	18.569 \| fine	38.757 \| good	13.507 \| good	0.474 \| good	20.755 \| good	0.434 \| good
2025-12-28T08:00:00.000Z	64 \| moderate	15.96 \| fine	23.823 \| good	17.125 \| good	0.29 \| good	26.829 \| good	0.335 \| good
2025-12-28T09:00:00.000Z	54 \| moderate	11.468 \| good	22.792 \| good	9.099 \| good	0.526 \| good	14.579 \| good	0.403 \| good
2025-12-28T10:00:00.000Z	60 \| moderate	13.935 \| fine	33.694 \| good	9.445 \| good	0.502 \| good	28.41 \| good	0.527 \| good
2025-12-28T11:00:00.000Z	69 \| moderate	19.109 \| fine	56.317 \| fine	13.831 \| good	0.355 \| good	29.108 \| good	0.436 \| good
2025-12-28T12:00:00.000Z	56 \| moderate	11.907 \| good	31.018 \| good	18.483 \| good	0.393 \| good	32.248 \| good	0.45 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	11.244 \| good	44.724 \| good	15.22 \| good	0.392 \| good	29.798 \| good	0.422 \| good
2025-12-28T14:00:00.000Z	54 \| moderate	10.717 \| good	34.447 \| good	21.575 \| good	0.481 \| good	25.793 \| good	0.614 \| good
2025-12-28T15:00:00.000Z	49 \| good	8.647 \| good	27.651 \| good	14.194 \| good	0.295 \| good	12.437 \| good	0.368 \| good
2025-12-28T16:00:00.000Z	49 \| good	9.012 \| good	26.357 \| good	26.431 \| good	0.257 \| good	12.156 \| good	0.296 \| good
2025-12-28T17:00:00.000Z	44 \| good	7.872 \| good	19.725 \| good	25.455 \| good	0.246 \| good	14.16 \| good	0.241 \| good
2025-12-28T18:00:00.000Z	49 \| good	8.771 \| good	30.597 \| good	25.815 \| good	0.279 \| good	13.099 \| good	0.227 \| good
2025-12-28T19:00:00.000Z	45 \| good	8.396 \| good	49.147 \| good	28.076 \| good	0.249 \| good	15.79 \| good	0.283 \| good
2025-12-28T20:00:00.000Z	54 \| moderate	10.971 \| good	53.966 \| good	24.15 \| good	0.273 \| good	16.655 \| good	0.311 \| good
2025-12-28T21:00:00.000Z	54 \| moderate	11.173 \| good	55.457 \| fine	20.819 \| good	0.261 \| good	14.414 \| good	0.325 \| good
2025-12-28T22:00:00.000Z	62 \| moderate	14.526 \| fine	59.899 \| fine	11.535 \| good	0.222 \| good	27.544 \| good	0.438 \| good
2025-12-28T23:00:00.000Z	54 \| moderate	10.769 \| good	48.339 \| good	17.861 \| good	0.255 \| good	24.105 \| good	0.45 \| good
2025-12-29T00:00:00.000Z	62 \| moderate	15.288 \| fine	69.112 \| fine	20.292 \| good	0.331 \| good	17.426 \| good	0.386 \| good
2025-12-29T01:00:00.000Z	62 \| moderate	15.288 \| fine	69.112 \| fine	20.292 \| good	0.331 \| good	17.426 \| good	0.386 \| good
2025-12-29T02:00:00.000Z	52 \| moderate	10.092 \| good	44.801 \| good	23.385 \| good	1.616 \| good	15.827 \| good	0.201 \| good
2025-12-29T03:00:00.000Z	38 \| good	6.85 \| good	30.351 \| good	23.482 \| good	0.966 \| good	9.957 \| good	0.176 \| good
2025-12-29T04:00:00.000Z	33 \| good	6.425 \| good	28.861 \| good	28.353 \| good	0.723 \| good	7.098 \| good	0.163 \| good
2025-12-29T05:00:00.000Z	33 \| good	5.732 \| good	24.885 \| good	34.704 \| good	0.481 \| good	4.239 \| good	0.149 \| good
2025-12-29T06:00:00.000Z	34 \| good	4.294 \| good	18.889 \| good	37.005 \| good	0.238 \| good	1.38 \| good	0.136 \| good
2025-12-29T07:00:00.000Z	34 \| good	3.967 \| good	17.595 \| good	37.438 \| good	0.23 \| good	1.14 \| good	0.133 \| good
2025-12-29T08:00:00.000Z	34 \| good	3.689 \| good	16.154 \| good	37.006 \| good	0.223 \| good	0.9 \| good	0.13 \| good
2025-12-29T09:00:00.000Z	28 \| good	3.772 \| good	16.224 \| good	30.095 \| good	0.215 \| good	0.66 \| good	0.126 \| good
2025-12-29T10:00:00.000Z	29 \| good	3.992 \| good	17.563 \| good	31.396 \| good	0.336 \| good	1.518 \| good	0.134 \| good
2025-12-29T11:00:00.000Z	32 \| good	3.878 \| good	16.948 \| good	34.812 \| good	0.457 \| good	2.376 \| good	0.141 \| good
2025-12-29T12:00:00.000Z	32 \| good	3.845 \| good	16.86 \| good	34.636 \| good	0.578 \| good	3.234 \| good	0.149 \| good
2025-12-29T13:00:00.000Z	33 \| good	4.594 \| good	19.859 \| good	35.687 \| good	0.588 \| good	3.563 \| good	0.153 \| good
2025-12-29T14:00:00.000Z	31 \| good	5.433 \| good	23.032 \| good	33.598 \| good	0.598 \| good	3.891 \| good	0.158 \| good
2025-12-29T15:00:00.000Z	33 \| good	5.522 \| good	23.85 \| good	34.429 \| good	0.608 \| good	4.22 \| good	0.162 \| good
2025-12-29T16:00:00.000Z	33 \| good	5.584 \| good	24.026 \| good	35.248 \| good	0.558 \| good	4.076 \| good	0.16 \| good
2025-12-29T17:00:00.000Z	33 \| good	5.848 \| good	25.203 \| good	33.84 \| good	0.508 \| good	3.932 \| good	0.157 \| good
2025-12-29T18:00:00.000Z	33 \| good	6.231 \| good	27.929 \| good	33.156 \| good	0.458 \| good	3.788 \| good	0.155 \| good
2025-12-29T19:00:00.000Z	38 \| good	6.839 \| good	30.538 \| good	31.479 \| good	0.793 \| good	5.964 \| good	0.164 \| good
2025-12-29T20:00:00.000Z	44 \| good	7.78 \| good	34.207 \| good	28.974 \| good	1.127 \| good	8.139 \| good	0.174 \| good
2025-12-29T21:00:00.000Z	37 \| good	4.66 \| good	20.649 \| good	39.508 \| good	1.462 \| good	10.315 \| good	0.184 \| good
2025-12-29T22:00:00.000Z	35 \| good	4.073 \| good	17.933 \| good	37.915 \| good	1.453 \| good	8.099 \| good	0.18 \| good
2025-12-29T23:00:00.000Z	30 \| good	4.389 \| good	19.184 \| good	32.335 \| good	1.444 \| good	5.882 \| good	0.175 \| good
2025-12-30T00:00:00.000Z	19 \| good	2.306 \| good	9.28 \| good	20.108 \| good	1.436 \| good	3.666 \| good	0.17 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.862 \| good	7.957 \| good	20.173 \| good	1.198 \| good	3.329 \| good	0.167 \| good
2025-12-30T02:00:00.000Z	16 \| good	1.765 \| good	7.201 \| good	16.764 \| good	0.959 \| good	2.992 \| good	0.165 \| good
2025-12-30T03:00:00.000Z	16 \| good	1.817 \| good	7.27 \| good	16.637 \| good	0.721 \| good	2.656 \| good	0.162 \| good
2025-12-30T04:00:00.000Z	16 \| good	1.916 \| good	8.005 \| good	17.31 \| good	0.616 \| good	2.296 \| good	0.156 \| good
2025-12-30T05:00:00.000Z	20 \| good	1.732 \| good	7.2 \| good	22.405 \| good	0.51 \| good	1.937 \| good	0.151 \| good
2025-12-30T06:00:00.000Z	27 \| good	1.321 \| good	5.17 \| good	28.761 \| good	0.404 \| good	1.578 \| good	0.146 \| good
2025-12-30T07:00:00.000Z	30 \| good	0.896 \| good	3.344 \| good	32.094 \| good	0.34 \| good	1.321 \| good	0.143 \| good
2025-12-30T08:00:00.000Z	31 \| good	1.071 \| good	4.249 \| good	33.352 \| good	0.275 \| good	1.065 \| good	0.14 \| good
2025-12-30T09:00:00.000Z	30 \| good	1.04 \| good	4.127 \| good	31.724 \| good	0.211 \| good	0.809 \| good	0.137 \| good
2025-12-30T10:00:00.000Z	28 \| good	0.957 \| good	3.89 \| good	30.26 \| good	0.228 \| good	0.949 \| good	0.139 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.454 \| good	1.898 \| good	31.568 \| good	0.245 \| good	1.09 \| good	0.141 \| good
2025-12-30T12:00:00.000Z	30 \| good	0.291 \| good	0.977 \| good	32.22 \| good	0.262 \| good	1.23 \| good	0.143 \| good
2025-12-30T13:00:00.000Z	32 \| good	0.286 \| good	1 \| good	34.617 \| good	0.279 \| good	1.301 \| good	0.144 \| good
2025-12-30T14:00:00.000Z	31 \| good	0.325 \| good	1.152 \| good	34.405 \| good	0.297 \| good	1.372 \| good	0.145 \| good
2025-12-30T15:00:00.000Z	32 \| good	0.403 \| good	1.328 \| good	35.253 \| good	0.314 \| good	1.444 \| good	0.146 \| good
2025-12-30T16:00:00.000Z	33 \| good	0.667 \| good	2.198 \| good	35.521 \| good	0.302 \| good	1.336 \| good	0.144 \| good
2025-12-30T17:00:00.000Z	33 \| good	0.895 \| good	3.737 \| good	36.214 \| good	0.29 \| good	1.228 \| good	0.142 \| good
2025-12-30T18:00:00.000Z	35 \| good	1.007 \| good	4.073 \| good	38.312 \| good	0.278 \| good	1.121 \| good	0.14 \| good
2025-12-30T19:00:00.000Z	37 \| good	0.959 \| good	3.914 \| good	39.88 \| good	0.298 \| good	1.333 \| good	0.138 \| good
2025-12-30T20:00:00.000Z	40 \| good	0.763 \| good	2.937 \| good	42.87 \| good	0.318 \| good	1.545 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	39 \| good	0.829 \| good	3.128 \| good	42.438 \| good	0.338 \| good	1.757 \| good	0.135 \| good
2025-12-30T22:00:00.000Z	37 \| good	0.917 \| good	3.715 \| good	40.465 \| good	0.396 \| good	1.891 \| good	0.134 \| good
2025-12-30T23:00:00.000Z	37 \| good	0.533 \| good	2 \| good	39.606 \| good	0.453 \| good	2.024 \| good	0.134 \| good
2025-12-31T00:00:00.000Z	38 \| good	1.269 \| good	1.354 \| good	40.936 \| good	0.508 \| good	2.149 \| good	0.133 \| good
2025-12-31T01:00:00.000Z	34 \| good	0.454 \| good	1.977 \| good	36.972 \| good	0.501 \| good	2.111 \| good	0.133 \| good

Live air quality index in Old Saybrook, Connecticut today

Major air pollutants in Old Saybrook, 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

Clinton, Connecticut

East Lyme, Connecticut

Madison, Connecticut

Waterford, Connecticut

New London, Connecticut

Guilford, Connecticut

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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