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 0.384 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 70.578 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 8.584 ppb.

Real-time air quality index in Old Saybrook, Connecticut today

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

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)

101

Unhealthy for sensitive groups

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)

17.51 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

80.22 μg/m³

155

255

425

605+

Ozone (O₃)

70.58 ppb

201

201+

Sulfur Dioxide (SO₂)

0.38 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.58 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2025-06-04T21:00:00.000Z	67 \| moderate	8.368 \| good	26.018 \| good	59.775 \| fine	0.525 \| good	14.856 \| good	0.282 \| good
2025-06-04T22:00:00.000Z	54 \| moderate	7.861 \| good	27.292 \| good	55.924 \| fine	0.481 \| good	10.307 \| good	0.254 \| good
2025-06-04T23:00:00.000Z	54 \| moderate	6.751 \| good	31.624 \| good	56.296 \| fine	0.489 \| good	8.4 \| good	0.295 \| good
2025-06-05T00:00:00.000Z	58 \| moderate	8.165 \| good	25.906 \| good	57.454 \| fine	0.485 \| good	9.41 \| good	0.281 \| good
2025-06-05T01:00:00.000Z	77 \| moderate	8.414 \| good	25.882 \| good	62.728 \| fine	0.392 \| good	6.546 \| good	0.308 \| good
2025-06-05T02:00:00.000Z	61 \| moderate	8.937 \| good	26.155 \| good	57.898 \| fine	0.365 \| good	7.746 \| good	0.267 \| good
2025-06-05T03:00:00.000Z	51 \| moderate	7.585 \| good	29.665 \| good	55.054 \| fine	0.325 \| good	7.395 \| good	0.263 \| good
2025-06-05T04:00:00.000Z	61 \| moderate	8.089 \| good	25.075 \| good	57.868 \| fine	0.364 \| good	5.586 \| good	0.21 \| good
2025-06-05T05:00:00.000Z	58 \| moderate	9.111 \| good	36.676 \| good	57.484 \| fine	0.539 \| good	5.93 \| good	0.167 \| good
2025-06-05T06:00:00.000Z	52 \| moderate	9.849 \| good	43.409 \| good	44.549 \| good	0.829 \| good	11.53 \| good	0.2 \| good
2025-06-05T07:00:00.000Z	56 \| moderate	11.504 \| good	60.331 \| fine	42.935 \| good	0.322 \| good	12.004 \| good	0.2 \| good
2025-06-05T08:00:00.000Z	49 \| good	9.263 \| good	39.486 \| good	26.251 \| good	0.314 \| good	8.311 \| good	0.2 \| good
2025-06-05T09:00:00.000Z	54 \| moderate	10.553 \| good	32.409 \| good	19.395 \| good	0.489 \| good	8.198 \| good	0.2 \| good
2025-06-05T10:00:00.000Z	56 \| moderate	11.552 \| good	31.059 \| good	21.628 \| good	0.336 \| good	19.199 \| good	0.216 \| good
2025-06-05T11:00:00.000Z	54 \| moderate	10.739 \| good	30.821 \| good	21.078 \| good	0.214 \| good	22.793 \| good	0.338 \| good
2025-06-05T12:00:00.000Z	58 \| moderate	12.957 \| fine	64.155 \| fine	32.324 \| good	0.479 \| good	18.114 \| good	0.409 \| good
2025-06-05T13:00:00.000Z	54 \| moderate	10.587 \| good	20.38 \| good	30.196 \| good	0.459 \| good	25.41 \| good	0.44 \| good
2025-06-05T14:00:00.000Z	62 \| moderate	15.423 \| fine	66.301 \| fine	35.362 \| good	0.521 \| good	20.503 \| good	0.366 \| good
2025-06-05T15:00:00.000Z	60 \| moderate	13.654 \| fine	69.725 \| fine	32.727 \| good	0.841 \| good	18.954 \| good	0.341 \| good
2025-06-05T16:00:00.000Z	62 \| moderate	15.311 \| fine	67.451 \| fine	44.97 \| good	0.88 \| good	30.903 \| good	0.341 \| good
2025-06-05T17:00:00.000Z	67 \| moderate	17.679 \| fine	80.399 \| fine	48.519 \| good	0.753 \| good	24.775 \| good	0.341 \| good
2025-06-05T18:00:00.000Z	67 \| moderate	18.128 \| fine	47.466 \| good	51.94 \| good	0.743 \| good	20.928 \| good	0.355 \| good
2025-06-05T19:00:00.000Z	90 \| moderate	17.911 \| fine	33.638 \| good	66.519 \| fine	0.8 \| good	31.156 \| good	0.341 \| good
2025-06-05T20:00:00.000Z	129 \| sensitive	19.308 \| fine	71.81 \| fine	78.775 \| moderate	0.643 \| good	18.446 \| good	0.373 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	18.513 \| fine	41.312 \| good	80.07 \| moderate	0.656 \| good	13.115 \| good	0.345 \| good
2025-06-05T22:00:00.000Z	140 \| sensitive	19.177 \| fine	61.449 \| fine	81.618 \| moderate	0.572 \| good	11.815 \| good	0.4 \| good
2025-06-05T23:00:00.000Z	71 \| moderate	17.275 \| fine	68.797 \| fine	61.095 \| fine	0.581 \| good	17.938 \| good	0.396 \| good
2025-06-06T00:00:00.000Z	66 \| moderate	16.549 \| fine	61.174 \| fine	59.138 \| fine	0.529 \| good	18.973 \| good	0.396 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	18.205 \| fine	75.222 \| fine	61.69 \| fine	0.564 \| good	6.23 \| good	0.364 \| good
2025-06-06T02:00:00.000Z	74 \| moderate	17.9 \| fine	84.769 \| fine	62.499 \| fine	0.858 \| good	8.135 \| good	0.336 \| good
2025-06-06T03:00:00.000Z	66 \| moderate	16.668 \| fine	46.012 \| good	43.747 \| good	0.692 \| good	14.925 \| good	0.349 \| good
2025-06-06T04:00:00.000Z	64 \| moderate	16.447 \| fine	70.358 \| fine	58.065 \| fine	0.491 \| good	7.962 \| good	0.277 \| good
2025-06-06T05:00:00.000Z	67 \| moderate	18.437 \| fine	46.882 \| good	48.714 \| good	0.416 \| good	10.728 \| good	0.248 \| good
2025-06-06T06:00:00.000Z	62 \| moderate	14.901 \| fine	43.242 \| good	45.492 \| good	0.459 \| good	11.104 \| good	0.205 \| good
2025-06-06T07:00:00.000Z	62 \| moderate	15.179 \| fine	32.635 \| good	46.959 \| good	0.357 \| good	12.3 \| good	0.195 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	17.857 \| fine	30.069 \| good	36.728 \| good	0.375 \| good	10.267 \| good	0.165 \| good
2025-06-06T09:00:00.000Z	64 \| moderate	16.042 \| fine	53.272 \| good	34.549 \| good	0.539 \| good	6.674 \| good	0.208 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.881 \| fine	62.007 \| fine	29.268 \| good	0.563 \| good	25.128 \| good	0.208 \| good
2025-06-06T11:00:00.000Z	71 \| moderate	19.685 \| fine	61.972 \| fine	27.727 \| good	0.347 \| good	22.718 \| good	0.308 \| good
2025-06-06T12:00:00.000Z	62 \| moderate	15.041 \| fine	71.065 \| fine	32.198 \| good	0.5 \| good	13.479 \| good	0.327 \| good
2025-06-06T13:00:00.000Z	62 \| moderate	14.786 \| fine	71.074 \| fine	30.139 \| good	0.42 \| good	18.406 \| good	0.258 \| good
2025-06-06T14:00:00.000Z	71 \| moderate	19.757 \| fine	71.354 \| fine	37.043 \| good	0.472 \| good	16.294 \| good	0.254 \| good
2025-06-06T15:00:00.000Z	69 \| moderate	19.109 \| fine	84.44 \| fine	37.559 \| good	0.419 \| good	23.924 \| good	0.286 \| good
2025-06-06T16:00:00.000Z	69 \| moderate	19.335 \| fine	91.202 \| fine	43.929 \| good	0.395 \| good	6.796 \| good	0.286 \| good
2025-06-06T17:00:00.000Z	75 \| moderate	21.704 \| fine	79.108 \| fine	48.246 \| good	0.327 \| good	7.924 \| good	0.313 \| good
2025-06-06T18:00:00.000Z	62 \| moderate	15.441 \| fine	43.319 \| good	54.171 \| good	0.492 \| good	9.097 \| good	0.313 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.717 \| fine	51.937 \| good	50.773 \| good	0.381 \| good	8.035 \| good	0.339 \| good
2025-06-06T20:00:00.000Z	101 \| sensitive	17.508 \| fine	80.222 \| fine	70.578 \| fine	0.384 \| good	8.584 \| good	0.298 \| good
2025-06-06T20:00:00.000Z	101 \| sensitive	17.508 \| fine	80.222 \| fine	70.578 \| fine	0.384 \| good	8.584 \| good	0.298 \| good
2025-06-06T21:00:00.000Z	71 \| moderate	12.366 \| fine	55.43 \| fine	60.576 \| fine	0.116 \| good	2.695 \| good	0.158 \| good
2025-06-06T22:00:00.000Z	52 \| moderate	10.436 \| good	46.186 \| good	52.604 \| good	0.193 \| good	3.848 \| good	0.149 \| good
2025-06-06T23:00:00.000Z	54 \| moderate	10.522 \| good	46.333 \| good	47.864 \| good	0.134 \| good	3.719 \| good	0.148 \| good
2025-06-07T00:00:00.000Z	40 \| good	5.804 \| good	25.113 \| good	43.432 \| good	0.075 \| good	3.59 \| good	0.148 \| good
2025-06-07T01:00:00.000Z	36 \| good	5.561 \| good	23.923 \| good	38.696 \| good	0.135 \| good	2.552 \| good	0.132 \| good
2025-06-07T02:00:00.000Z	33 \| good	5.917 \| good	25.461 \| good	36.221 \| good	0.102 \| good	2.365 \| good	0.133 \| good
2025-06-07T03:00:00.000Z	36 \| good	5.17 \| good	22.241 \| good	38.56 \| good	0.07 \| good	2.178 \| good	0.134 \| good
2025-06-07T04:00:00.000Z	38 \| good	6.516 \| good	28.825 \| good	40.704 \| good	0.126 \| good	2.027 \| good	0.13 \| good
2025-06-07T05:00:00.000Z	49 \| good	8.517 \| good	37.44 \| good	36.679 \| good	0.105 \| good	1.8 \| good	0.131 \| good
2025-06-07T06:00:00.000Z	44 \| good	8.456 \| good	36.977 \| good	33.667 \| good	0.083 \| good	1.574 \| good	0.131 \| good
2025-06-07T07:00:00.000Z	44 \| good	7.575 \| good	33.209 \| good	31.062 \| good	0.233 \| good	1.923 \| good	0.126 \| good
2025-06-07T08:00:00.000Z	38 \| good	7.248 \| good	31.923 \| good	29.826 \| good	0.197 \| good	1.73 \| good	0.127 \| good
2025-06-07T09:00:00.000Z	44 \| good	8.294 \| good	36.656 \| good	27.271 \| good	0.161 \| good	1.536 \| good	0.127 \| good
2025-06-07T10:00:00.000Z	44 \| good	8.148 \| good	35.749 \| good	25.074 \| good	0.298 \| good	4.043 \| good	0.143 \| good
2025-06-07T11:00:00.000Z	44 \| good	8.088 \| good	35.162 \| good	29.667 \| good	0.254 \| good	4.312 \| good	0.148 \| good
2025-06-07T12:00:00.000Z	49 \| good	9.379 \| good	41.798 \| good	32.584 \| good	0.209 \| good	4.581 \| good	0.153 \| good
2025-06-07T13:00:00.000Z	49 \| good	9.075 \| good	40.692 \| good	34.598 \| good	0.28 \| good	6.035 \| good	0.178 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	9.9 \| good	44.021 \| good	34.666 \| good	0.252 \| good	7.144 \| good	0.197 \| good
2025-06-07T15:00:00.000Z	52 \| moderate	9.759 \| good	43.104 \| good	33.832 \| good	0.224 \| good	8.253 \| good	0.215 \| good
2025-06-07T16:00:00.000Z	52 \| moderate	9.87 \| good	43.924 \| good	36.741 \| good	0.323 \| good	6.078 \| good	0.211 \| good
2025-06-07T17:00:00.000Z	49 \| good	9.375 \| good	41.458 \| good	43.329 \| good	0.262 \| good	7.35 \| good	0.234 \| good
2025-06-07T18:00:00.000Z	49 \| good	9.018 \| good	39.577 \| good	49.389 \| good	0.201 \| good	8.623 \| good	0.258 \| good
2025-06-07T19:00:00.000Z	49 \| good	9.041 \| good	39.659 \| good	52.168 \| good	0.222 \| good	5.797 \| good	0.212 \| good
2025-06-07T20:00:00.000Z	52 \| moderate	9.789 \| good	43.424 \| good	55.3 \| fine	0.157 \| good	6.95 \| good	0.217 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	10.781 \| good	47.712 \| good	53.249 \| good	0.091 \| good	8.104 \| good	0.222 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	11.921 \| good	53.172 \| good	56.228 \| fine	0.296 \| good	9.315 \| good	0.248 \| good
2025-06-07T23:00:00.000Z	64 \| moderate	14.258 \| fine	63.752 \| fine	59.117 \| fine	0.226 \| good	10.05 \| good	0.24 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.549 \| good	42.121 \| good	52.805 \| good	0.157 \| good	10.786 \| good	0.231 \| good
2025-06-08T01:00:00.000Z	44 \| good	7.632 \| good	33.386 \| good	44.578 \| good	0.451 \| good	7.679 \| good	0.284 \| good
2025-06-08T02:00:00.000Z	37 \| good	5.73 \| good	24.818 \| good	40.076 \| good	0.393 \| good	7.832 \| good	0.275 \| good
2025-06-08T03:00:00.000Z	34 \| good	6.004 \| good	27.03 \| good	36.921 \| good	0.334 \| good	7.986 \| good	0.266 \| good
2025-06-08T04:00:00.000Z	38 \| good	7.253 \| good	31.814 \| good	32.962 \| good	0.507 \| good	5.342 \| good	0.303 \| good
2025-06-08T05:00:00.000Z	44 \| good	8.197 \| good	35.837 \| good	27.45 \| good	0.465 \| good	5.686 \| good	0.301 \| good
2025-06-08T06:00:00.000Z	52 \| moderate	9.516 \| good	42.313 \| good	21.267 \| good	0.422 \| good	6.03 \| good	0.299 \| good
2025-06-08T07:00:00.000Z	52 \| moderate	9.855 \| good	43.536 \| good	18.507 \| good	0.491 \| good	3.642 \| good	0.283 \| good
2025-06-08T08:00:00.000Z	52 \| moderate	10.328 \| good	45.592 \| good	16.209 \| good	0.413 \| good	3.856 \| good	0.279 \| good
2025-06-08T09:00:00.000Z	56 \| moderate	11.582 \| good	51.217 \| good	16.719 \| good	0.334 \| good	4.069 \| good	0.276 \| good
2025-06-08T10:00:00.000Z	54 \| moderate	10.841 \| good	48.169 \| good	16.973 \| good	0.374 \| good	4.162 \| good	0.248 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.443 \| good	46.407 \| good	19.4 \| good	0.312 \| good	4.542 \| good	0.241 \| good
2025-06-08T12:00:00.000Z	52 \| moderate	10.215 \| good	45.438 \| good	25.154 \| good	0.251 \| good	4.922 \| good	0.235 \| good
2025-06-08T13:00:00.000Z	49 \| good	8.568 \| good	37.608 \| good	29.378 \| good	0.225 \| good	4.672 \| good	0.24 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.746 \| good	38.701 \| good	32.327 \| good	0.227 \| good	5.385 \| good	0.24 \| good
2025-06-08T15:00:00.000Z	60 \| moderate	13.942 \| fine	62.466 \| fine	37.827 \| good	0.229 \| good	6.097 \| good	0.24 \| good
2025-06-08T16:00:00.000Z	73 \| moderate	20.766 \| fine	90.9 \| fine	47.805 \| good	0.239 \| good	2.936 \| good	0.232 \| good
2025-06-08T17:00:00.000Z	66 \| moderate	17.299 \| fine	77.102 \| fine	54.262 \| good	0.233 \| good	3.549 \| good	0.226 \| good
2025-06-08T18:00:00.000Z	60 \| moderate	14.363 \| fine	63.695 \| fine	53.249 \| good	0.227 \| good	4.161 \| good	0.219 \| good
2025-06-08T19:00:00.000Z	58 \| moderate	12.954 \| fine	57.894 \| fine	49.398 \| good	0.252 \| good	3.775 \| good	0.216 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	12.318 \| fine	55.366 \| fine	47.93 \| good	0.208 \| good	4.025 \| good	0.206 \| good

Old Saybrook

Get reliable air quality data to drive your business

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

0.32ppm

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 10:00:00 on 2025-06-05.

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 07:00:00 on 2025-06-06.

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

As of now, the AQI in Old Saybrook, Connecticut is 101, indicating Unhealthy for Sensitive Groups conditions.

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

Old Saybrook, Connecticut air has the highest levels of O3.

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 17.508 μg/m³.

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

The PM₁₀ concentration in Old Saybrook, Connecticut is 80.222 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 0.298 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 0.384 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 70.578 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 8.584 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T21:00:00.000Z	67 \| moderate	8.368 \| good	26.018 \| good	59.775 \| fine	0.525 \| good	14.856 \| good	0.282 \| good
2025-06-04T22:00:00.000Z	54 \| moderate	7.861 \| good	27.292 \| good	55.924 \| fine	0.481 \| good	10.307 \| good	0.254 \| good
2025-06-04T23:00:00.000Z	54 \| moderate	6.751 \| good	31.624 \| good	56.296 \| fine	0.489 \| good	8.4 \| good	0.295 \| good
2025-06-05T00:00:00.000Z	58 \| moderate	8.165 \| good	25.906 \| good	57.454 \| fine	0.485 \| good	9.41 \| good	0.281 \| good
2025-06-05T01:00:00.000Z	77 \| moderate	8.414 \| good	25.882 \| good	62.728 \| fine	0.392 \| good	6.546 \| good	0.308 \| good
2025-06-05T02:00:00.000Z	61 \| moderate	8.937 \| good	26.155 \| good	57.898 \| fine	0.365 \| good	7.746 \| good	0.267 \| good
2025-06-05T03:00:00.000Z	51 \| moderate	7.585 \| good	29.665 \| good	55.054 \| fine	0.325 \| good	7.395 \| good	0.263 \| good
2025-06-05T04:00:00.000Z	61 \| moderate	8.089 \| good	25.075 \| good	57.868 \| fine	0.364 \| good	5.586 \| good	0.21 \| good
2025-06-05T05:00:00.000Z	58 \| moderate	9.111 \| good	36.676 \| good	57.484 \| fine	0.539 \| good	5.93 \| good	0.167 \| good
2025-06-05T06:00:00.000Z	52 \| moderate	9.849 \| good	43.409 \| good	44.549 \| good	0.829 \| good	11.53 \| good	0.2 \| good
2025-06-05T07:00:00.000Z	56 \| moderate	11.504 \| good	60.331 \| fine	42.935 \| good	0.322 \| good	12.004 \| good	0.2 \| good
2025-06-05T08:00:00.000Z	49 \| good	9.263 \| good	39.486 \| good	26.251 \| good	0.314 \| good	8.311 \| good	0.2 \| good
2025-06-05T09:00:00.000Z	54 \| moderate	10.553 \| good	32.409 \| good	19.395 \| good	0.489 \| good	8.198 \| good	0.2 \| good
2025-06-05T10:00:00.000Z	56 \| moderate	11.552 \| good	31.059 \| good	21.628 \| good	0.336 \| good	19.199 \| good	0.216 \| good
2025-06-05T11:00:00.000Z	54 \| moderate	10.739 \| good	30.821 \| good	21.078 \| good	0.214 \| good	22.793 \| good	0.338 \| good
2025-06-05T12:00:00.000Z	58 \| moderate	12.957 \| fine	64.155 \| fine	32.324 \| good	0.479 \| good	18.114 \| good	0.409 \| good
2025-06-05T13:00:00.000Z	54 \| moderate	10.587 \| good	20.38 \| good	30.196 \| good	0.459 \| good	25.41 \| good	0.44 \| good
2025-06-05T14:00:00.000Z	62 \| moderate	15.423 \| fine	66.301 \| fine	35.362 \| good	0.521 \| good	20.503 \| good	0.366 \| good
2025-06-05T15:00:00.000Z	60 \| moderate	13.654 \| fine	69.725 \| fine	32.727 \| good	0.841 \| good	18.954 \| good	0.341 \| good
2025-06-05T16:00:00.000Z	62 \| moderate	15.311 \| fine	67.451 \| fine	44.97 \| good	0.88 \| good	30.903 \| good	0.341 \| good
2025-06-05T17:00:00.000Z	67 \| moderate	17.679 \| fine	80.399 \| fine	48.519 \| good	0.753 \| good	24.775 \| good	0.341 \| good
2025-06-05T18:00:00.000Z	67 \| moderate	18.128 \| fine	47.466 \| good	51.94 \| good	0.743 \| good	20.928 \| good	0.355 \| good
2025-06-05T19:00:00.000Z	90 \| moderate	17.911 \| fine	33.638 \| good	66.519 \| fine	0.8 \| good	31.156 \| good	0.341 \| good
2025-06-05T20:00:00.000Z	129 \| sensitive	19.308 \| fine	71.81 \| fine	78.775 \| moderate	0.643 \| good	18.446 \| good	0.373 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	18.513 \| fine	41.312 \| good	80.07 \| moderate	0.656 \| good	13.115 \| good	0.345 \| good
2025-06-05T22:00:00.000Z	140 \| sensitive	19.177 \| fine	61.449 \| fine	81.618 \| moderate	0.572 \| good	11.815 \| good	0.4 \| good
2025-06-05T23:00:00.000Z	71 \| moderate	17.275 \| fine	68.797 \| fine	61.095 \| fine	0.581 \| good	17.938 \| good	0.396 \| good
2025-06-06T00:00:00.000Z	66 \| moderate	16.549 \| fine	61.174 \| fine	59.138 \| fine	0.529 \| good	18.973 \| good	0.396 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	18.205 \| fine	75.222 \| fine	61.69 \| fine	0.564 \| good	6.23 \| good	0.364 \| good
2025-06-06T02:00:00.000Z	74 \| moderate	17.9 \| fine	84.769 \| fine	62.499 \| fine	0.858 \| good	8.135 \| good	0.336 \| good
2025-06-06T03:00:00.000Z	66 \| moderate	16.668 \| fine	46.012 \| good	43.747 \| good	0.692 \| good	14.925 \| good	0.349 \| good
2025-06-06T04:00:00.000Z	64 \| moderate	16.447 \| fine	70.358 \| fine	58.065 \| fine	0.491 \| good	7.962 \| good	0.277 \| good
2025-06-06T05:00:00.000Z	67 \| moderate	18.437 \| fine	46.882 \| good	48.714 \| good	0.416 \| good	10.728 \| good	0.248 \| good
2025-06-06T06:00:00.000Z	62 \| moderate	14.901 \| fine	43.242 \| good	45.492 \| good	0.459 \| good	11.104 \| good	0.205 \| good
2025-06-06T07:00:00.000Z	62 \| moderate	15.179 \| fine	32.635 \| good	46.959 \| good	0.357 \| good	12.3 \| good	0.195 \| good
2025-06-06T08:00:00.000Z	67 \| moderate	17.857 \| fine	30.069 \| good	36.728 \| good	0.375 \| good	10.267 \| good	0.165 \| good
2025-06-06T09:00:00.000Z	64 \| moderate	16.042 \| fine	53.272 \| good	34.549 \| good	0.539 \| good	6.674 \| good	0.208 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.881 \| fine	62.007 \| fine	29.268 \| good	0.563 \| good	25.128 \| good	0.208 \| good
2025-06-06T11:00:00.000Z	71 \| moderate	19.685 \| fine	61.972 \| fine	27.727 \| good	0.347 \| good	22.718 \| good	0.308 \| good
2025-06-06T12:00:00.000Z	62 \| moderate	15.041 \| fine	71.065 \| fine	32.198 \| good	0.5 \| good	13.479 \| good	0.327 \| good
2025-06-06T13:00:00.000Z	62 \| moderate	14.786 \| fine	71.074 \| fine	30.139 \| good	0.42 \| good	18.406 \| good	0.258 \| good
2025-06-06T14:00:00.000Z	71 \| moderate	19.757 \| fine	71.354 \| fine	37.043 \| good	0.472 \| good	16.294 \| good	0.254 \| good
2025-06-06T15:00:00.000Z	69 \| moderate	19.109 \| fine	84.44 \| fine	37.559 \| good	0.419 \| good	23.924 \| good	0.286 \| good
2025-06-06T16:00:00.000Z	69 \| moderate	19.335 \| fine	91.202 \| fine	43.929 \| good	0.395 \| good	6.796 \| good	0.286 \| good
2025-06-06T17:00:00.000Z	75 \| moderate	21.704 \| fine	79.108 \| fine	48.246 \| good	0.327 \| good	7.924 \| good	0.313 \| good
2025-06-06T18:00:00.000Z	62 \| moderate	15.441 \| fine	43.319 \| good	54.171 \| good	0.492 \| good	9.097 \| good	0.313 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.717 \| fine	51.937 \| good	50.773 \| good	0.381 \| good	8.035 \| good	0.339 \| good
2025-06-06T20:00:00.000Z	101 \| sensitive	17.508 \| fine	80.222 \| fine	70.578 \| fine	0.384 \| good	8.584 \| good	0.298 \| good
2025-06-06T20:00:00.000Z	101 \| sensitive	17.508 \| fine	80.222 \| fine	70.578 \| fine	0.384 \| good	8.584 \| good	0.298 \| good
2025-06-06T21:00:00.000Z	71 \| moderate	12.366 \| fine	55.43 \| fine	60.576 \| fine	0.116 \| good	2.695 \| good	0.158 \| good
2025-06-06T22:00:00.000Z	52 \| moderate	10.436 \| good	46.186 \| good	52.604 \| good	0.193 \| good	3.848 \| good	0.149 \| good
2025-06-06T23:00:00.000Z	54 \| moderate	10.522 \| good	46.333 \| good	47.864 \| good	0.134 \| good	3.719 \| good	0.148 \| good
2025-06-07T00:00:00.000Z	40 \| good	5.804 \| good	25.113 \| good	43.432 \| good	0.075 \| good	3.59 \| good	0.148 \| good
2025-06-07T01:00:00.000Z	36 \| good	5.561 \| good	23.923 \| good	38.696 \| good	0.135 \| good	2.552 \| good	0.132 \| good
2025-06-07T02:00:00.000Z	33 \| good	5.917 \| good	25.461 \| good	36.221 \| good	0.102 \| good	2.365 \| good	0.133 \| good
2025-06-07T03:00:00.000Z	36 \| good	5.17 \| good	22.241 \| good	38.56 \| good	0.07 \| good	2.178 \| good	0.134 \| good
2025-06-07T04:00:00.000Z	38 \| good	6.516 \| good	28.825 \| good	40.704 \| good	0.126 \| good	2.027 \| good	0.13 \| good
2025-06-07T05:00:00.000Z	49 \| good	8.517 \| good	37.44 \| good	36.679 \| good	0.105 \| good	1.8 \| good	0.131 \| good
2025-06-07T06:00:00.000Z	44 \| good	8.456 \| good	36.977 \| good	33.667 \| good	0.083 \| good	1.574 \| good	0.131 \| good
2025-06-07T07:00:00.000Z	44 \| good	7.575 \| good	33.209 \| good	31.062 \| good	0.233 \| good	1.923 \| good	0.126 \| good
2025-06-07T08:00:00.000Z	38 \| good	7.248 \| good	31.923 \| good	29.826 \| good	0.197 \| good	1.73 \| good	0.127 \| good
2025-06-07T09:00:00.000Z	44 \| good	8.294 \| good	36.656 \| good	27.271 \| good	0.161 \| good	1.536 \| good	0.127 \| good
2025-06-07T10:00:00.000Z	44 \| good	8.148 \| good	35.749 \| good	25.074 \| good	0.298 \| good	4.043 \| good	0.143 \| good
2025-06-07T11:00:00.000Z	44 \| good	8.088 \| good	35.162 \| good	29.667 \| good	0.254 \| good	4.312 \| good	0.148 \| good
2025-06-07T12:00:00.000Z	49 \| good	9.379 \| good	41.798 \| good	32.584 \| good	0.209 \| good	4.581 \| good	0.153 \| good
2025-06-07T13:00:00.000Z	49 \| good	9.075 \| good	40.692 \| good	34.598 \| good	0.28 \| good	6.035 \| good	0.178 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	9.9 \| good	44.021 \| good	34.666 \| good	0.252 \| good	7.144 \| good	0.197 \| good
2025-06-07T15:00:00.000Z	52 \| moderate	9.759 \| good	43.104 \| good	33.832 \| good	0.224 \| good	8.253 \| good	0.215 \| good
2025-06-07T16:00:00.000Z	52 \| moderate	9.87 \| good	43.924 \| good	36.741 \| good	0.323 \| good	6.078 \| good	0.211 \| good
2025-06-07T17:00:00.000Z	49 \| good	9.375 \| good	41.458 \| good	43.329 \| good	0.262 \| good	7.35 \| good	0.234 \| good
2025-06-07T18:00:00.000Z	49 \| good	9.018 \| good	39.577 \| good	49.389 \| good	0.201 \| good	8.623 \| good	0.258 \| good
2025-06-07T19:00:00.000Z	49 \| good	9.041 \| good	39.659 \| good	52.168 \| good	0.222 \| good	5.797 \| good	0.212 \| good
2025-06-07T20:00:00.000Z	52 \| moderate	9.789 \| good	43.424 \| good	55.3 \| fine	0.157 \| good	6.95 \| good	0.217 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	10.781 \| good	47.712 \| good	53.249 \| good	0.091 \| good	8.104 \| good	0.222 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	11.921 \| good	53.172 \| good	56.228 \| fine	0.296 \| good	9.315 \| good	0.248 \| good
2025-06-07T23:00:00.000Z	64 \| moderate	14.258 \| fine	63.752 \| fine	59.117 \| fine	0.226 \| good	10.05 \| good	0.24 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.549 \| good	42.121 \| good	52.805 \| good	0.157 \| good	10.786 \| good	0.231 \| good
2025-06-08T01:00:00.000Z	44 \| good	7.632 \| good	33.386 \| good	44.578 \| good	0.451 \| good	7.679 \| good	0.284 \| good
2025-06-08T02:00:00.000Z	37 \| good	5.73 \| good	24.818 \| good	40.076 \| good	0.393 \| good	7.832 \| good	0.275 \| good
2025-06-08T03:00:00.000Z	34 \| good	6.004 \| good	27.03 \| good	36.921 \| good	0.334 \| good	7.986 \| good	0.266 \| good
2025-06-08T04:00:00.000Z	38 \| good	7.253 \| good	31.814 \| good	32.962 \| good	0.507 \| good	5.342 \| good	0.303 \| good
2025-06-08T05:00:00.000Z	44 \| good	8.197 \| good	35.837 \| good	27.45 \| good	0.465 \| good	5.686 \| good	0.301 \| good
2025-06-08T06:00:00.000Z	52 \| moderate	9.516 \| good	42.313 \| good	21.267 \| good	0.422 \| good	6.03 \| good	0.299 \| good
2025-06-08T07:00:00.000Z	52 \| moderate	9.855 \| good	43.536 \| good	18.507 \| good	0.491 \| good	3.642 \| good	0.283 \| good
2025-06-08T08:00:00.000Z	52 \| moderate	10.328 \| good	45.592 \| good	16.209 \| good	0.413 \| good	3.856 \| good	0.279 \| good
2025-06-08T09:00:00.000Z	56 \| moderate	11.582 \| good	51.217 \| good	16.719 \| good	0.334 \| good	4.069 \| good	0.276 \| good
2025-06-08T10:00:00.000Z	54 \| moderate	10.841 \| good	48.169 \| good	16.973 \| good	0.374 \| good	4.162 \| good	0.248 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.443 \| good	46.407 \| good	19.4 \| good	0.312 \| good	4.542 \| good	0.241 \| good
2025-06-08T12:00:00.000Z	52 \| moderate	10.215 \| good	45.438 \| good	25.154 \| good	0.251 \| good	4.922 \| good	0.235 \| good
2025-06-08T13:00:00.000Z	49 \| good	8.568 \| good	37.608 \| good	29.378 \| good	0.225 \| good	4.672 \| good	0.24 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.746 \| good	38.701 \| good	32.327 \| good	0.227 \| good	5.385 \| good	0.24 \| good
2025-06-08T15:00:00.000Z	60 \| moderate	13.942 \| fine	62.466 \| fine	37.827 \| good	0.229 \| good	6.097 \| good	0.24 \| good
2025-06-08T16:00:00.000Z	73 \| moderate	20.766 \| fine	90.9 \| fine	47.805 \| good	0.239 \| good	2.936 \| good	0.232 \| good
2025-06-08T17:00:00.000Z	66 \| moderate	17.299 \| fine	77.102 \| fine	54.262 \| good	0.233 \| good	3.549 \| good	0.226 \| good
2025-06-08T18:00:00.000Z	60 \| moderate	14.363 \| fine	63.695 \| fine	53.249 \| good	0.227 \| good	4.161 \| good	0.219 \| good
2025-06-08T19:00:00.000Z	58 \| moderate	12.954 \| fine	57.894 \| fine	49.398 \| good	0.252 \| good	3.775 \| good	0.216 \| good
2025-06-08T20:00:00.000Z	56 \| moderate	12.318 \| fine	55.366 \| fine	47.93 \| good	0.208 \| good	4.025 \| good	0.206 \| good

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

Air quality in nearby cities

Clinton, Connecticut

East Lyme, Connecticut

Madison, Connecticut

Waterford, Connecticut

New London, Connecticut

Guilford, Connecticut

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Frequently asked questions

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

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

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

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

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?

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?

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

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

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?