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 0.26 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 25.164 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 2.839 ppb.

Live 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)

Good

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)

4.54 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

16.91 μg/m³

155

255

425

605+

Ozone (O₃)

27.57 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.58 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2025-09-12T12:00:00.000Z	27 \| good	5.249 \| good	28.147 \| good	22.941 \| good	0.16 \| good	12.639 \| good	0.321 \| good
2025-09-12T13:00:00.000Z	38 \| good	7.153 \| good	20.93 \| good	26.871 \| good	0.176 \| good	7.736 \| good	0.267 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.355 \| good	13.748 \| good	22.97 \| good	0.157 \| good	5.832 \| good	0.194 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.057 \| good	14.924 \| good	27.688 \| good	0.235 \| good	4.03 \| good	0.194 \| good
2025-09-12T16:00:00.000Z	33 \| good	6.403 \| good	18.266 \| good	27.277 \| good	0.245 \| good	2.772 \| good	0.182 \| good
2025-09-12T17:00:00.000Z	38 \| good	6.9 \| good	16.665 \| good	30.616 \| good	0.125 \| good	2.81 \| good	0.168 \| good
2025-09-12T18:00:00.000Z	33 \| good	6.309 \| good	18.726 \| good	33.71 \| good	0.146 \| good	2.523 \| good	0.168 \| good
2025-09-12T19:00:00.000Z	33 \| good	6.006 \| good	18.744 \| good	35.446 \| good	0.183 \| good	2.913 \| good	0.182 \| good
2025-09-12T20:00:00.000Z	34 \| good	5.671 \| good	17.144 \| good	37.161 \| good	0.198 \| good	3.016 \| good	0.168 \| good
2025-09-12T21:00:00.000Z	35 \| good	4.678 \| good	19.322 \| good	37.864 \| good	0.14 \| good	3.978 \| good	0.181 \| good
2025-09-12T22:00:00.000Z	37 \| good	4.859 \| good	21.837 \| good	39.721 \| good	0.153 \| good	3.399 \| good	0.196 \| good
2025-09-12T23:00:00.000Z	37 \| good	5.294 \| good	19.726 \| good	40.064 \| good	0.113 \| good	2.554 \| good	0.194 \| good
2025-09-13T00:00:00.000Z	33 \| good	4.835 \| good	23.21 \| good	36.453 \| good	0.148 \| good	2.642 \| good	0.236 \| good
2025-09-13T01:00:00.000Z	33 \| good	6.36 \| good	19.484 \| good	33.644 \| good	0.272 \| good	2.776 \| good	0.249 \| good
2025-09-13T02:00:00.000Z	33 \| good	5.616 \| good	14.155 \| good	35.668 \| good	0.225 \| good	3.083 \| good	0.236 \| good
2025-09-13T03:00:00.000Z	28 \| good	4.849 \| good	19.313 \| good	29.819 \| good	0.217 \| good	3.549 \| good	0.277 \| good
2025-09-13T04:00:00.000Z	28 \| good	5.131 \| good	12.258 \| good	29.999 \| good	0.231 \| good	3.043 \| good	0.331 \| good
2025-09-13T05:00:00.000Z	33 \| good	5.725 \| good	14.344 \| good	27.485 \| good	0.23 \| good	8.327 \| good	0.368 \| good
2025-09-13T06:00:00.000Z	33 \| good	5.62 \| good	12.757 \| good	28.073 \| good	0.251 \| good	10.351 \| good	0.327 \| good
2025-09-13T07:00:00.000Z	33 \| good	6.258 \| good	17.097 \| good	26.544 \| good	0.213 \| good	11.121 \| good	0.355 \| good
2025-09-13T08:00:00.000Z	38 \| good	6.938 \| good	11.718 \| good	18.354 \| good	0.159 \| good	10.393 \| good	0.355 \| good
2025-09-13T09:00:00.000Z	38 \| good	6.584 \| good	12.955 \| good	12.151 \| good	0.249 \| good	9.887 \| good	0.295 \| good
2025-09-13T10:00:00.000Z	58 \| moderate	12.554 \| fine	13.836 \| good	18.589 \| good	0.272 \| good	6.021 \| good	0.309 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.263 \| good	16.774 \| good	20.475 \| good	0.256 \| good	5.661 \| good	0.35 \| good
2025-09-13T12:00:00.000Z	33 \| good	5.577 \| good	20.699 \| good	19.039 \| good	0.146 \| good	5.078 \| good	0.363 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.861 \| good	13.157 \| good	12.159 \| good	0.1 \| good	4.812 \| good	0.323 \| good
2025-09-13T14:00:00.000Z	27 \| good	4.989 \| good	21.025 \| good	20.539 \| good	0.213 \| good	6.135 \| good	0.282 \| good
2025-09-13T15:00:00.000Z	23 \| good	4.254 \| good	14.837 \| good	24.73 \| good	0.149 \| good	4.474 \| good	0.237 \| good
2025-09-13T16:00:00.000Z	27 \| good	4.641 \| good	20.239 \| good	27.159 \| good	0.131 \| good	4.802 \| good	0.237 \| good
2025-09-13T17:00:00.000Z	33 \| good	5.624 \| good	24.806 \| good	31.104 \| good	0.15 \| good	4.434 \| good	0.252 \| good
2025-09-13T18:00:00.000Z	34 \| good	3.897 \| good	18.652 \| good	36.537 \| good	0.179 \| good	4.522 \| good	0.283 \| good
2025-09-13T19:00:00.000Z	36 \| good	3.678 \| good	11.85 \| good	39.406 \| good	0.133 \| good	4.292 \| good	0.224 \| good
2025-09-13T20:00:00.000Z	39 \| good	4.089 \| good	14.168 \| good	42.238 \| good	0.153 \| good	4.675 \| good	0.224 \| good
2025-09-13T21:00:00.000Z	38 \| good	3.851 \| good	16.04 \| good	41.469 \| good	0.174 \| good	5.561 \| good	0.224 \| good
2025-09-13T22:00:00.000Z	38 \| good	3.627 \| good	19.399 \| good	40.795 \| good	0.236 \| good	2.193 \| good	0.224 \| good
2025-09-13T23:00:00.000Z	41 \| good	3.34 \| good	12.048 \| good	44.334 \| good	0.234 \| good	2.6 \| good	0.251 \| good
2025-09-14T00:00:00.000Z	35 \| good	3.989 \| good	20.428 \| good	37.753 \| good	0.233 \| good	3.209 \| good	0.25 \| good
2025-09-14T01:00:00.000Z	33 \| good	4.153 \| good	23.864 \| good	36.421 \| good	0.298 \| good	3.65 \| good	0.251 \| good
2025-09-14T02:00:00.000Z	28 \| good	4.328 \| good	20.885 \| good	30.315 \| good	0.232 \| good	3.687 \| good	0.264 \| good
2025-09-14T03:00:00.000Z	27 \| good	4.731 \| good	20.525 \| good	26.711 \| good	0.547 \| good	2.833 \| good	0.151 \| good
2025-09-14T04:00:00.000Z	31 \| good	4.594 \| good	20.6 \| good	33.356 \| good	0.299 \| good	3.69 \| good	0.279 \| good
2025-09-14T05:00:00.000Z	28 \| good	4.134 \| good	19.262 \| good	30.271 \| good	0.23 \| good	5.363 \| good	0.269 \| good
2025-09-14T06:00:00.000Z	31 \| good	4.727 \| good	20.434 \| good	33.644 \| good	0.543 \| good	3.261 \| good	0.234 \| good
2025-09-14T07:00:00.000Z	29 \| good	4.612 \| good	18.961 \| good	31.168 \| good	0.216 \| good	6.246 \| good	0.255 \| good
2025-09-14T08:00:00.000Z	24 \| good	4.453 \| good	18.123 \| good	25.967 \| good	0.273 \| good	4.23 \| good	0.269 \| good
2025-09-14T09:00:00.000Z	23 \| good	4.477 \| good	17.289 \| good	25.164 \| good	0.26 \| good	2.839 \| good	0.269 \| good
2025-09-14T10:00:00.000Z	27 \| good	4.541 \| good	16.908 \| good	27.566 \| good	0.277 \| good	3.58 \| good	0.234 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.579 \| good	20.256 \| good	20.857 \| good	0.257 \| good	3.921 \| good	0.25 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.541 \| good	16.908 \| good	27.566 \| good	0.277 \| good	3.58 \| good	0.234 \| good
2025-09-14T10:00:00.000Z	33 \| good	5.82 \| good	25.351 \| good	20.581 \| good	0.812 \| good	3.922 \| good	0.149 \| good
2025-09-14T11:00:00.000Z	33 \| good	6.208 \| good	27.276 \| good	20.807 \| good	1.085 \| good	5.509 \| good	0.16 \| good
2025-09-14T12:00:00.000Z	38 \| good	7.115 \| good	31.334 \| good	22.339 \| good	1.358 \| good	7.097 \| good	0.17 \| good
2025-09-14T13:00:00.000Z	44 \| good	7.8 \| good	34.478 \| good	23.976 \| good	1.645 \| good	7.111 \| good	0.183 \| good
2025-09-14T14:00:00.000Z	54 \| moderate	10.769 \| good	47.748 \| good	31.45 \| good	1.933 \| good	7.126 \| good	0.196 \| good
2025-09-14T15:00:00.000Z	60 \| moderate	13.57 \| fine	61.502 \| fine	40.651 \| good	2.22 \| good	7.141 \| good	0.209 \| good
2025-09-14T16:00:00.000Z	62 \| moderate	14.513 \| fine	65.282 \| fine	46.689 \| good	1.944 \| good	6.009 \| good	0.201 \| good
2025-09-14T17:00:00.000Z	60 \| moderate	14.24 \| fine	63.687 \| fine	48.729 \| good	1.668 \| good	4.878 \| good	0.192 \| good
2025-09-14T18:00:00.000Z	64 \| moderate	15.767 \| fine	70.015 \| fine	52.701 \| good	1.391 \| good	3.746 \| good	0.184 \| good
2025-09-14T19:00:00.000Z	66 \| moderate	17.389 \| fine	77.294 \| fine	54.407 \| good	1.138 \| good	3.805 \| good	0.182 \| good
2025-09-14T20:00:00.000Z	66 \| moderate	16.941 \| fine	75.504 \| fine	52.52 \| good	0.884 \| good	3.864 \| good	0.179 \| good
2025-09-14T21:00:00.000Z	60 \| moderate	13.949 \| fine	62.099 \| fine	51.625 \| good	0.631 \| good	3.923 \| good	0.177 \| good
2025-09-14T22:00:00.000Z	60 \| moderate	14.238 \| fine	63.466 \| fine	52.075 \| good	0.593 \| good	5.568 \| good	0.188 \| good
2025-09-14T23:00:00.000Z	60 \| moderate	14.201 \| fine	63.251 \| fine	50.896 \| good	0.556 \| good	7.214 \| good	0.2 \| good
2025-09-15T00:00:00.000Z	62 \| moderate	15.415 \| fine	69.121 \| fine	46.369 \| good	0.519 \| good	8.86 \| good	0.212 \| good
2025-09-15T01:00:00.000Z	64 \| moderate	16.129 \| fine	71.672 \| fine	38.55 \| good	0.576 \| good	8.438 \| good	0.209 \| good
2025-09-15T02:00:00.000Z	66 \| moderate	17.3 \| fine	77.12 \| fine	31.096 \| good	0.633 \| good	8.016 \| good	0.207 \| good
2025-09-15T03:00:00.000Z	69 \| moderate	18.501 \| fine	81.482 \| fine	29.504 \| good	0.69 \| good	7.594 \| good	0.204 \| good
2025-09-15T04:00:00.000Z	71 \| moderate	19.557 \| fine	86.708 \| fine	29.358 \| good	0.701 \| good	8.366 \| good	0.217 \| good
2025-09-15T05:00:00.000Z	69 \| moderate	19.376 \| fine	85.133 \| fine	30.745 \| good	0.712 \| good	9.137 \| good	0.231 \| good
2025-09-15T06:00:00.000Z	71 \| moderate	19.607 \| fine	86.656 \| fine	30.608 \| good	0.723 \| good	9.908 \| good	0.244 \| good
2025-09-15T07:00:00.000Z	73 \| moderate	20.571 \| fine	90.913 \| fine	26.624 \| good	0.721 \| good	9.292 \| good	0.245 \| good
2025-09-15T08:00:00.000Z	71 \| moderate	20.198 \| fine	88.981 \| fine	23.756 \| good	0.719 \| good	8.676 \| good	0.246 \| good
2025-09-15T09:00:00.000Z	67 \| moderate	18.359 \| fine	81.131 \| fine	26.584 \| good	0.717 \| good	8.059 \| good	0.248 \| good
2025-09-15T10:00:00.000Z	67 \| moderate	18.354 \| fine	81.131 \| fine	25.11 \| good	0.793 \| good	7.619 \| good	0.247 \| good
2025-09-15T11:00:00.000Z	67 \| moderate	18.187 \| fine	80.911 \| fine	26.155 \| good	0.868 \| good	7.178 \| good	0.246 \| good
2025-09-15T12:00:00.000Z	69 \| moderate	19.111 \| fine	84.729 \| fine	28.011 \| good	0.944 \| good	6.738 \| good	0.246 \| good
2025-09-15T13:00:00.000Z	69 \| moderate	19.393 \| fine	85.148 \| fine	32.12 \| good	0.983 \| good	5.862 \| good	0.242 \| good
2025-09-15T14:00:00.000Z	71 \| moderate	19.755 \| fine	87.42 \| fine	35.907 \| good	1.023 \| good	4.986 \| good	0.237 \| good
2025-09-15T15:00:00.000Z	69 \| moderate	18.994 \| fine	83.725 \| fine	41.429 \| good	1.062 \| good	4.111 \| good	0.233 \| good
2025-09-15T16:00:00.000Z	66 \| moderate	16.685 \| fine	73.607 \| fine	46.685 \| good	0.963 \| good	3.449 \| good	0.233 \| good
2025-09-15T17:00:00.000Z	66 \| moderate	16.941 \| fine	75.905 \| fine	52.45 \| good	0.864 \| good	2.787 \| good	0.232 \| good
2025-09-15T18:00:00.000Z	67 \| moderate	17.859 \| fine	78.745 \| fine	59.38 \| fine	0.765 \| good	2.125 \| good	0.231 \| good
2025-09-15T19:00:00.000Z	77 \| moderate	16.927 \| fine	75.11 \| fine	62.815 \| fine	0.671 \| good	2.371 \| good	0.231 \| good
2025-09-15T20:00:00.000Z	74 \| moderate	15.366 \| fine	68.684 \| fine	62.124 \| fine	0.578 \| good	2.617 \| good	0.231 \| good
2025-09-15T21:00:00.000Z	71 \| moderate	13.611 \| fine	61.404 \| fine	60.77 \| fine	0.484 \| good	2.863 \| good	0.23 \| good
2025-09-15T22:00:00.000Z	58 \| moderate	13.091 \| fine	59.37 \| fine	53.615 \| good	0.475 \| good	3.334 \| good	0.223 \| good
2025-09-15T23:00:00.000Z	60 \| moderate	13.801 \| fine	61.57 \| fine	50.462 \| good	0.466 \| good	3.804 \| good	0.216 \| good
2025-09-16T00:00:00.000Z	58 \| moderate	12.937 \| fine	58.66 \| fine	41.205 \| good	0.457 \| good	4.275 \| good	0.209 \| good
2025-09-16T01:00:00.000Z	56 \| moderate	12.337 \| fine	55.336 \| fine	32.477 \| good	0.472 \| good	3.528 \| good	0.196 \| good
2025-09-16T02:00:00.000Z	56 \| moderate	11.892 \| good	52.572 \| good	32.178 \| good	0.487 \| good	2.78 \| good	0.182 \| good
2025-09-16T03:00:00.000Z	54 \| moderate	10.582 \| good	46.829 \| good	29.808 \| good	0.502 \| good	2.033 \| good	0.168 \| good
2025-09-16T04:00:00.000Z	52 \| moderate	9.947 \| good	44.163 \| good	29.521 \| good	0.493 \| good	1.867 \| good	0.165 \| good
2025-09-16T05:00:00.000Z	49 \| good	9.045 \| good	40.521 \| good	29.093 \| good	0.484 \| good	1.702 \| good	0.162 \| good
2025-09-16T06:00:00.000Z	52 \| moderate	9.917 \| good	13.362 \| good	53.038 \| good	0.475 \| good	1.496 \| good	0.159 \| good
2025-09-16T07:00:00.000Z	49 \| good	9.308 \| good	41.369 \| good	27.407 \| good	0.456 \| good	1.68 \| good	0.161 \| good
2025-09-16T08:00:00.000Z	52 \| moderate	9.506 \| good	42.316 \| good	25.599 \| good	0.436 \| good	1.824 \| good	0.162 \| good
2025-09-16T09:00:00.000Z	49 \| good	9.291 \| good	41.339 \| good	31.441 \| good	0.416 \| good	1.968 \| good	0.163 \| good

Old Saybrook

Get reliable air quality data to drive your business

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

0.28ppm

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 2025-09-13.

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 03:00:00 on 2025-09-13.

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

As of now, the AQI in Old Saybrook, Connecticut is 23, indicating Good 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 4.477 μg/m³.

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

The PM₁₀ concentration in Old Saybrook, Connecticut is 17.289 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 0.269 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 0.26 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 25.164 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 2.839 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-12T12:00:00.000Z	27 \| good	5.249 \| good	28.147 \| good	22.941 \| good	0.16 \| good	12.639 \| good	0.321 \| good
2025-09-12T13:00:00.000Z	38 \| good	7.153 \| good	20.93 \| good	26.871 \| good	0.176 \| good	7.736 \| good	0.267 \| good
2025-09-12T14:00:00.000Z	27 \| good	5.355 \| good	13.748 \| good	22.97 \| good	0.157 \| good	5.832 \| good	0.194 \| good
2025-09-12T15:00:00.000Z	27 \| good	5.057 \| good	14.924 \| good	27.688 \| good	0.235 \| good	4.03 \| good	0.194 \| good
2025-09-12T16:00:00.000Z	33 \| good	6.403 \| good	18.266 \| good	27.277 \| good	0.245 \| good	2.772 \| good	0.182 \| good
2025-09-12T17:00:00.000Z	38 \| good	6.9 \| good	16.665 \| good	30.616 \| good	0.125 \| good	2.81 \| good	0.168 \| good
2025-09-12T18:00:00.000Z	33 \| good	6.309 \| good	18.726 \| good	33.71 \| good	0.146 \| good	2.523 \| good	0.168 \| good
2025-09-12T19:00:00.000Z	33 \| good	6.006 \| good	18.744 \| good	35.446 \| good	0.183 \| good	2.913 \| good	0.182 \| good
2025-09-12T20:00:00.000Z	34 \| good	5.671 \| good	17.144 \| good	37.161 \| good	0.198 \| good	3.016 \| good	0.168 \| good
2025-09-12T21:00:00.000Z	35 \| good	4.678 \| good	19.322 \| good	37.864 \| good	0.14 \| good	3.978 \| good	0.181 \| good
2025-09-12T22:00:00.000Z	37 \| good	4.859 \| good	21.837 \| good	39.721 \| good	0.153 \| good	3.399 \| good	0.196 \| good
2025-09-12T23:00:00.000Z	37 \| good	5.294 \| good	19.726 \| good	40.064 \| good	0.113 \| good	2.554 \| good	0.194 \| good
2025-09-13T00:00:00.000Z	33 \| good	4.835 \| good	23.21 \| good	36.453 \| good	0.148 \| good	2.642 \| good	0.236 \| good
2025-09-13T01:00:00.000Z	33 \| good	6.36 \| good	19.484 \| good	33.644 \| good	0.272 \| good	2.776 \| good	0.249 \| good
2025-09-13T02:00:00.000Z	33 \| good	5.616 \| good	14.155 \| good	35.668 \| good	0.225 \| good	3.083 \| good	0.236 \| good
2025-09-13T03:00:00.000Z	28 \| good	4.849 \| good	19.313 \| good	29.819 \| good	0.217 \| good	3.549 \| good	0.277 \| good
2025-09-13T04:00:00.000Z	28 \| good	5.131 \| good	12.258 \| good	29.999 \| good	0.231 \| good	3.043 \| good	0.331 \| good
2025-09-13T05:00:00.000Z	33 \| good	5.725 \| good	14.344 \| good	27.485 \| good	0.23 \| good	8.327 \| good	0.368 \| good
2025-09-13T06:00:00.000Z	33 \| good	5.62 \| good	12.757 \| good	28.073 \| good	0.251 \| good	10.351 \| good	0.327 \| good
2025-09-13T07:00:00.000Z	33 \| good	6.258 \| good	17.097 \| good	26.544 \| good	0.213 \| good	11.121 \| good	0.355 \| good
2025-09-13T08:00:00.000Z	38 \| good	6.938 \| good	11.718 \| good	18.354 \| good	0.159 \| good	10.393 \| good	0.355 \| good
2025-09-13T09:00:00.000Z	38 \| good	6.584 \| good	12.955 \| good	12.151 \| good	0.249 \| good	9.887 \| good	0.295 \| good
2025-09-13T10:00:00.000Z	58 \| moderate	12.554 \| fine	13.836 \| good	18.589 \| good	0.272 \| good	6.021 \| good	0.309 \| good
2025-09-13T11:00:00.000Z	27 \| good	5.263 \| good	16.774 \| good	20.475 \| good	0.256 \| good	5.661 \| good	0.35 \| good
2025-09-13T12:00:00.000Z	33 \| good	5.577 \| good	20.699 \| good	19.039 \| good	0.146 \| good	5.078 \| good	0.363 \| good
2025-09-13T13:00:00.000Z	27 \| good	4.861 \| good	13.157 \| good	12.159 \| good	0.1 \| good	4.812 \| good	0.323 \| good
2025-09-13T14:00:00.000Z	27 \| good	4.989 \| good	21.025 \| good	20.539 \| good	0.213 \| good	6.135 \| good	0.282 \| good
2025-09-13T15:00:00.000Z	23 \| good	4.254 \| good	14.837 \| good	24.73 \| good	0.149 \| good	4.474 \| good	0.237 \| good
2025-09-13T16:00:00.000Z	27 \| good	4.641 \| good	20.239 \| good	27.159 \| good	0.131 \| good	4.802 \| good	0.237 \| good
2025-09-13T17:00:00.000Z	33 \| good	5.624 \| good	24.806 \| good	31.104 \| good	0.15 \| good	4.434 \| good	0.252 \| good
2025-09-13T18:00:00.000Z	34 \| good	3.897 \| good	18.652 \| good	36.537 \| good	0.179 \| good	4.522 \| good	0.283 \| good
2025-09-13T19:00:00.000Z	36 \| good	3.678 \| good	11.85 \| good	39.406 \| good	0.133 \| good	4.292 \| good	0.224 \| good
2025-09-13T20:00:00.000Z	39 \| good	4.089 \| good	14.168 \| good	42.238 \| good	0.153 \| good	4.675 \| good	0.224 \| good
2025-09-13T21:00:00.000Z	38 \| good	3.851 \| good	16.04 \| good	41.469 \| good	0.174 \| good	5.561 \| good	0.224 \| good
2025-09-13T22:00:00.000Z	38 \| good	3.627 \| good	19.399 \| good	40.795 \| good	0.236 \| good	2.193 \| good	0.224 \| good
2025-09-13T23:00:00.000Z	41 \| good	3.34 \| good	12.048 \| good	44.334 \| good	0.234 \| good	2.6 \| good	0.251 \| good
2025-09-14T00:00:00.000Z	35 \| good	3.989 \| good	20.428 \| good	37.753 \| good	0.233 \| good	3.209 \| good	0.25 \| good
2025-09-14T01:00:00.000Z	33 \| good	4.153 \| good	23.864 \| good	36.421 \| good	0.298 \| good	3.65 \| good	0.251 \| good
2025-09-14T02:00:00.000Z	28 \| good	4.328 \| good	20.885 \| good	30.315 \| good	0.232 \| good	3.687 \| good	0.264 \| good
2025-09-14T03:00:00.000Z	27 \| good	4.731 \| good	20.525 \| good	26.711 \| good	0.547 \| good	2.833 \| good	0.151 \| good
2025-09-14T04:00:00.000Z	31 \| good	4.594 \| good	20.6 \| good	33.356 \| good	0.299 \| good	3.69 \| good	0.279 \| good
2025-09-14T05:00:00.000Z	28 \| good	4.134 \| good	19.262 \| good	30.271 \| good	0.23 \| good	5.363 \| good	0.269 \| good
2025-09-14T06:00:00.000Z	31 \| good	4.727 \| good	20.434 \| good	33.644 \| good	0.543 \| good	3.261 \| good	0.234 \| good
2025-09-14T07:00:00.000Z	29 \| good	4.612 \| good	18.961 \| good	31.168 \| good	0.216 \| good	6.246 \| good	0.255 \| good
2025-09-14T08:00:00.000Z	24 \| good	4.453 \| good	18.123 \| good	25.967 \| good	0.273 \| good	4.23 \| good	0.269 \| good
2025-09-14T09:00:00.000Z	23 \| good	4.477 \| good	17.289 \| good	25.164 \| good	0.26 \| good	2.839 \| good	0.269 \| good
2025-09-14T10:00:00.000Z	27 \| good	4.541 \| good	16.908 \| good	27.566 \| good	0.277 \| good	3.58 \| good	0.234 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.579 \| good	20.256 \| good	20.857 \| good	0.257 \| good	3.921 \| good	0.25 \| good
2025-09-14T11:00:00.000Z	27 \| good	4.541 \| good	16.908 \| good	27.566 \| good	0.277 \| good	3.58 \| good	0.234 \| good
2025-09-14T10:00:00.000Z	33 \| good	5.82 \| good	25.351 \| good	20.581 \| good	0.812 \| good	3.922 \| good	0.149 \| good
2025-09-14T11:00:00.000Z	33 \| good	6.208 \| good	27.276 \| good	20.807 \| good	1.085 \| good	5.509 \| good	0.16 \| good
2025-09-14T12:00:00.000Z	38 \| good	7.115 \| good	31.334 \| good	22.339 \| good	1.358 \| good	7.097 \| good	0.17 \| good
2025-09-14T13:00:00.000Z	44 \| good	7.8 \| good	34.478 \| good	23.976 \| good	1.645 \| good	7.111 \| good	0.183 \| good
2025-09-14T14:00:00.000Z	54 \| moderate	10.769 \| good	47.748 \| good	31.45 \| good	1.933 \| good	7.126 \| good	0.196 \| good
2025-09-14T15:00:00.000Z	60 \| moderate	13.57 \| fine	61.502 \| fine	40.651 \| good	2.22 \| good	7.141 \| good	0.209 \| good
2025-09-14T16:00:00.000Z	62 \| moderate	14.513 \| fine	65.282 \| fine	46.689 \| good	1.944 \| good	6.009 \| good	0.201 \| good
2025-09-14T17:00:00.000Z	60 \| moderate	14.24 \| fine	63.687 \| fine	48.729 \| good	1.668 \| good	4.878 \| good	0.192 \| good
2025-09-14T18:00:00.000Z	64 \| moderate	15.767 \| fine	70.015 \| fine	52.701 \| good	1.391 \| good	3.746 \| good	0.184 \| good
2025-09-14T19:00:00.000Z	66 \| moderate	17.389 \| fine	77.294 \| fine	54.407 \| good	1.138 \| good	3.805 \| good	0.182 \| good
2025-09-14T20:00:00.000Z	66 \| moderate	16.941 \| fine	75.504 \| fine	52.52 \| good	0.884 \| good	3.864 \| good	0.179 \| good
2025-09-14T21:00:00.000Z	60 \| moderate	13.949 \| fine	62.099 \| fine	51.625 \| good	0.631 \| good	3.923 \| good	0.177 \| good
2025-09-14T22:00:00.000Z	60 \| moderate	14.238 \| fine	63.466 \| fine	52.075 \| good	0.593 \| good	5.568 \| good	0.188 \| good
2025-09-14T23:00:00.000Z	60 \| moderate	14.201 \| fine	63.251 \| fine	50.896 \| good	0.556 \| good	7.214 \| good	0.2 \| good
2025-09-15T00:00:00.000Z	62 \| moderate	15.415 \| fine	69.121 \| fine	46.369 \| good	0.519 \| good	8.86 \| good	0.212 \| good
2025-09-15T01:00:00.000Z	64 \| moderate	16.129 \| fine	71.672 \| fine	38.55 \| good	0.576 \| good	8.438 \| good	0.209 \| good
2025-09-15T02:00:00.000Z	66 \| moderate	17.3 \| fine	77.12 \| fine	31.096 \| good	0.633 \| good	8.016 \| good	0.207 \| good
2025-09-15T03:00:00.000Z	69 \| moderate	18.501 \| fine	81.482 \| fine	29.504 \| good	0.69 \| good	7.594 \| good	0.204 \| good
2025-09-15T04:00:00.000Z	71 \| moderate	19.557 \| fine	86.708 \| fine	29.358 \| good	0.701 \| good	8.366 \| good	0.217 \| good
2025-09-15T05:00:00.000Z	69 \| moderate	19.376 \| fine	85.133 \| fine	30.745 \| good	0.712 \| good	9.137 \| good	0.231 \| good
2025-09-15T06:00:00.000Z	71 \| moderate	19.607 \| fine	86.656 \| fine	30.608 \| good	0.723 \| good	9.908 \| good	0.244 \| good
2025-09-15T07:00:00.000Z	73 \| moderate	20.571 \| fine	90.913 \| fine	26.624 \| good	0.721 \| good	9.292 \| good	0.245 \| good
2025-09-15T08:00:00.000Z	71 \| moderate	20.198 \| fine	88.981 \| fine	23.756 \| good	0.719 \| good	8.676 \| good	0.246 \| good
2025-09-15T09:00:00.000Z	67 \| moderate	18.359 \| fine	81.131 \| fine	26.584 \| good	0.717 \| good	8.059 \| good	0.248 \| good
2025-09-15T10:00:00.000Z	67 \| moderate	18.354 \| fine	81.131 \| fine	25.11 \| good	0.793 \| good	7.619 \| good	0.247 \| good
2025-09-15T11:00:00.000Z	67 \| moderate	18.187 \| fine	80.911 \| fine	26.155 \| good	0.868 \| good	7.178 \| good	0.246 \| good
2025-09-15T12:00:00.000Z	69 \| moderate	19.111 \| fine	84.729 \| fine	28.011 \| good	0.944 \| good	6.738 \| good	0.246 \| good
2025-09-15T13:00:00.000Z	69 \| moderate	19.393 \| fine	85.148 \| fine	32.12 \| good	0.983 \| good	5.862 \| good	0.242 \| good
2025-09-15T14:00:00.000Z	71 \| moderate	19.755 \| fine	87.42 \| fine	35.907 \| good	1.023 \| good	4.986 \| good	0.237 \| good
2025-09-15T15:00:00.000Z	69 \| moderate	18.994 \| fine	83.725 \| fine	41.429 \| good	1.062 \| good	4.111 \| good	0.233 \| good
2025-09-15T16:00:00.000Z	66 \| moderate	16.685 \| fine	73.607 \| fine	46.685 \| good	0.963 \| good	3.449 \| good	0.233 \| good
2025-09-15T17:00:00.000Z	66 \| moderate	16.941 \| fine	75.905 \| fine	52.45 \| good	0.864 \| good	2.787 \| good	0.232 \| good
2025-09-15T18:00:00.000Z	67 \| moderate	17.859 \| fine	78.745 \| fine	59.38 \| fine	0.765 \| good	2.125 \| good	0.231 \| good
2025-09-15T19:00:00.000Z	77 \| moderate	16.927 \| fine	75.11 \| fine	62.815 \| fine	0.671 \| good	2.371 \| good	0.231 \| good
2025-09-15T20:00:00.000Z	74 \| moderate	15.366 \| fine	68.684 \| fine	62.124 \| fine	0.578 \| good	2.617 \| good	0.231 \| good
2025-09-15T21:00:00.000Z	71 \| moderate	13.611 \| fine	61.404 \| fine	60.77 \| fine	0.484 \| good	2.863 \| good	0.23 \| good
2025-09-15T22:00:00.000Z	58 \| moderate	13.091 \| fine	59.37 \| fine	53.615 \| good	0.475 \| good	3.334 \| good	0.223 \| good
2025-09-15T23:00:00.000Z	60 \| moderate	13.801 \| fine	61.57 \| fine	50.462 \| good	0.466 \| good	3.804 \| good	0.216 \| good
2025-09-16T00:00:00.000Z	58 \| moderate	12.937 \| fine	58.66 \| fine	41.205 \| good	0.457 \| good	4.275 \| good	0.209 \| good
2025-09-16T01:00:00.000Z	56 \| moderate	12.337 \| fine	55.336 \| fine	32.477 \| good	0.472 \| good	3.528 \| good	0.196 \| good
2025-09-16T02:00:00.000Z	56 \| moderate	11.892 \| good	52.572 \| good	32.178 \| good	0.487 \| good	2.78 \| good	0.182 \| good
2025-09-16T03:00:00.000Z	54 \| moderate	10.582 \| good	46.829 \| good	29.808 \| good	0.502 \| good	2.033 \| good	0.168 \| good
2025-09-16T04:00:00.000Z	52 \| moderate	9.947 \| good	44.163 \| good	29.521 \| good	0.493 \| good	1.867 \| good	0.165 \| good
2025-09-16T05:00:00.000Z	49 \| good	9.045 \| good	40.521 \| good	29.093 \| good	0.484 \| good	1.702 \| good	0.162 \| good
2025-09-16T06:00:00.000Z	52 \| moderate	9.917 \| good	13.362 \| good	53.038 \| good	0.475 \| good	1.496 \| good	0.159 \| good
2025-09-16T07:00:00.000Z	49 \| good	9.308 \| good	41.369 \| good	27.407 \| good	0.456 \| good	1.68 \| good	0.161 \| good
2025-09-16T08:00:00.000Z	52 \| moderate	9.506 \| good	42.316 \| good	25.599 \| good	0.436 \| good	1.824 \| good	0.162 \| good
2025-09-16T09:00:00.000Z	49 \| good	9.291 \| good	41.339 \| good	31.441 \| good	0.416 \| good	1.968 \| good	0.163 \| 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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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?

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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?