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 0.286 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 50.113 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 9.448 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 10.63 μg/m3.

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

The PM10 concentration in Old Saybrook, Connecticut is 39.368 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)

10.63 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.37 μg/m³

155

255

425

605+

Ozone (O₃)

50.11 ppb

201

201+

Sulfur Dioxide (SO₂)

0.29 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.45 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 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
2026-06-27T19:00:00.000Z	35 \| good	6.351 \| good	14.399 \| good	38.276 \| good	0.285 \| good	10.491 \| good	0.227 \| good
2026-06-27T20:00:00.000Z	44 \| good	6.784 \| good	10.559 \| good	47.715 \| good	0.183 \| good	9.847 \| good	0.199 \| good
2026-06-27T21:00:00.000Z	40 \| good	6.252 \| good	14.507 \| good	43.241 \| good	0.189 \| good	7.388 \| good	0.167 \| good
2026-06-27T22:00:00.000Z	41 \| good	6.793 \| good	17.083 \| good	43.69 \| good	0.265 \| good	9.046 \| good	0.195 \| good
2026-06-27T23:00:00.000Z	44 \| good	8.233 \| good	34.399 \| good	46.114 \| good	0.23 \| good	12.868 \| good	0.213 \| good
2026-06-28T00:00:00.000Z	41 \| good	7.034 \| good	44.364 \| good	41.091 \| good	0.148 \| good	5.973 \| good	0.259 \| good
2026-06-28T01:00:00.000Z	44 \| good	8.333 \| good	34.104 \| good	43.339 \| good	0.181 \| good	11.207 \| good	0.226 \| good
2026-06-28T02:00:00.000Z	54 \| moderate	10.695 \| good	33.956 \| good	40.537 \| good	0.181 \| good	3.884 \| good	0.254 \| good
2026-06-28T03:00:00.000Z	58 \| moderate	12.544 \| fine	57 \| fine	39.877 \| good	0.397 \| good	5.573 \| good	0.23 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	12.208 \| fine	37.861 \| good	33.088 \| good	0.186 \| good	6.289 \| good	0.299 \| good
2026-06-28T05:00:00.000Z	54 \| moderate	11.075 \| good	45.624 \| good	32.46 \| good	0.151 \| good	9.274 \| good	0.331 \| good
2026-06-28T06:00:00.000Z	56 \| moderate	12.462 \| fine	45.222 \| good	19.612 \| good	0.134 \| good	7.883 \| good	0.33 \| good
2026-06-28T07:00:00.000Z	60 \| moderate	13.591 \| fine	71.164 \| fine	28.196 \| good	0.345 \| good	3.879 \| good	0.282 \| good
2026-06-28T08:00:00.000Z	57 \| moderate	12.064 \| good	68.311 \| fine	25.611 \| good	0.163 \| good	6.22 \| good	0.29 \| good
2026-06-28T09:00:00.000Z	60 \| moderate	13.605 \| fine	51.429 \| good	18.307 \| good	0.276 \| good	5.904 \| good	0.258 \| good
2026-06-28T10:00:00.000Z	58 \| moderate	12.574 \| fine	35.413 \| good	26.017 \| good	0.164 \| good	4.643 \| good	0.239 \| good
2026-06-28T11:00:00.000Z	52 \| moderate	10.371 \| good	54.908 \| good	21.939 \| good	0.276 \| good	8.532 \| good	0.285 \| good
2026-06-28T12:00:00.000Z	44 \| good	8.283 \| good	21.658 \| good	20.486 \| good	0.386 \| good	6.27 \| good	0.231 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.045 \| good	39.589 \| good	31.4 \| good	0.476 \| good	6.33 \| good	0.199 \| good
2026-06-28T14:00:00.000Z	52 \| moderate	10.115 \| good	23.118 \| good	28.912 \| good	0.193 \| good	4.447 \| good	0.186 \| good
2026-06-28T15:00:00.000Z	54 \| moderate	10.514 \| good	38.175 \| good	35.671 \| good	0.184 \| good	3.199 \| good	0.158 \| good
2026-06-28T16:00:00.000Z	54 \| moderate	10.513 \| good	24.812 \| good	40.586 \| good	0.251 \| good	4.632 \| good	0.19 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	10.239 \| good	21.941 \| good	47.883 \| good	0.201 \| good	4.914 \| good	0.171 \| good
2026-06-28T18:00:00.000Z	49 \| good	9.384 \| good	23.13 \| good	49.157 \| good	0.198 \| good	4.435 \| good	0.186 \| good
2026-06-28T19:00:00.000Z	49 \| good	8.544 \| good	26.961 \| good	49.126 \| good	0.165 \| good	3.179 \| good	0.218 \| good
2026-06-28T20:00:00.000Z	51 \| moderate	8.918 \| good	26.3 \| good	54.56 \| good	0.189 \| good	2.977 \| good	0.186 \| good
2026-06-28T21:00:00.000Z	49 \| good	8.82 \| good	27.251 \| good	51.72 \| good	0.223 \| good	4.013 \| good	0.186 \| good
2026-06-28T22:00:00.000Z	50 \| good	7.577 \| good	17.576 \| good	53.757 \| good	0.186 \| good	5.018 \| good	0.214 \| good
2026-06-28T23:00:00.000Z	47 \| good	6.715 \| good	13.105 \| good	51.338 \| good	0.168 \| good	5.727 \| good	0.186 \| good
2026-06-29T00:00:00.000Z	48 \| good	6.101 \| good	17.706 \| good	52.034 \| good	0.168 \| good	5.066 \| good	0.267 \| good
2026-06-29T01:00:00.000Z	45 \| good	6.56 \| good	15.426 \| good	48.501 \| good	0.168 \| good	4.397 \| good	0.199 \| good
2026-06-29T02:00:00.000Z	40 \| good	6.353 \| good	18.58 \| good	43.24 \| good	0.203 \| good	5.012 \| good	0.199 \| good
2026-06-29T03:00:00.000Z	49 \| good	9.49 \| good	42.597 \| good	36.582 \| good	0.279 \| good	2.473 \| good	0.17 \| good
2026-06-29T04:00:00.000Z	38 \| good	6.797 \| good	15.921 \| good	41.134 \| good	0.311 \| good	5.777 \| good	0.24 \| good
2026-06-29T05:00:00.000Z	38 \| good	7.431 \| good	24.853 \| good	34.654 \| good	0.423 \| good	7.422 \| good	0.182 \| good
2026-06-29T06:00:00.000Z	38 \| good	7.081 \| good	29.663 \| good	33.87 \| good	0.16 \| good	8.814 \| good	0.186 \| good
2026-06-29T07:00:00.000Z	44 \| good	7.786 \| good	27.311 \| good	24.342 \| good	0.316 \| good	8.377 \| good	0.182 \| good
2026-06-29T08:00:00.000Z	49 \| good	8.939 \| good	26.117 \| good	27.313 \| good	0.16 \| good	9.531 \| good	0.186 \| good
2026-06-29T09:00:00.000Z	33 \| good	6.36 \| good	21.295 \| good	27.005 \| good	0.16 \| good	8.965 \| good	0.199 \| good
2026-06-29T10:00:00.000Z	38 \| good	6.805 \| good	27.677 \| good	23.768 \| good	0.177 \| good	13.44 \| good	0.29 \| good
2026-06-29T11:00:00.000Z	49 \| good	8.624 \| good	35.084 \| good	22.319 \| good	0.163 \| good	9.675 \| good	0.29 \| good
2026-06-29T12:00:00.000Z	52 \| moderate	9.98 \| good	26.454 \| good	14.595 \| good	0.133 \| good	7.88 \| good	0.238 \| good
2026-06-29T13:00:00.000Z	49 \| good	8.665 \| good	22.899 \| good	18.548 \| good	0.193 \| good	8.379 \| good	0.24 \| good
2026-06-29T14:00:00.000Z	44 \| good	8.195 \| good	29.452 \| good	26.61 \| good	0.226 \| good	7.368 \| good	0.198 \| good
2026-06-29T15:00:00.000Z	49 \| good	8.971 \| good	30.344 \| good	27.967 \| good	0.261 \| good	5.834 \| good	0.198 \| good
2026-06-29T16:00:00.000Z	52 \| moderate	10.267 \| good	43.59 \| good	28.911 \| good	0.239 \| good	6.511 \| good	0.213 \| good
2026-06-29T17:00:00.000Z	52 \| moderate	10.098 \| good	21.59 \| good	48.698 \| good	0.271 \| good	10.996 \| good	0.177 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	10.63 \| good	39.368 \| good	50.113 \| good	0.286 \| good	9.448 \| good	0.19 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	10.63 \| good	39.368 \| good	50.113 \| good	0.286 \| good	9.448 \| good	0.19 \| good
2026-06-29T19:00:00.000Z	54 \| moderate	9.431 \| good	41.884 \| good	55.573 \| fine	0.281 \| good	2.278 \| good	0.21 \| good
2026-06-29T20:00:00.000Z	52 \| moderate	9.905 \| good	43.503 \| good	55.093 \| fine	0.25 \| good	2.562 \| good	0.211 \| good
2026-06-29T21:00:00.000Z	52 \| moderate	9.711 \| good	43.537 \| good	53.411 \| good	0.224 \| good	2.874 \| good	0.207 \| good
2026-06-29T22:00:00.000Z	49 \| good	8.88 \| good	39.147 \| good	51.642 \| good	0.221 \| good	3.157 \| good	0.198 \| good
2026-06-29T23:00:00.000Z	45 \| good	8.439 \| good	36.845 \| good	48.789 \| good	0.202 \| good	3.791 \| good	0.193 \| good
2026-06-30T00:00:00.000Z	49 \| good	9.217 \| good	40.836 \| good	46.486 \| good	0.196 \| good	3.927 \| good	0.184 \| good
2026-06-30T01:00:00.000Z	49 \| good	9.422 \| good	41.945 \| good	43.774 \| good	0.214 \| good	3.535 \| good	0.173 \| good
2026-06-30T02:00:00.000Z	52 \| moderate	10.143 \| good	45.086 \| good	40.262 \| good	0.232 \| good	3.15 \| good	0.164 \| good
2026-06-30T03:00:00.000Z	52 \| moderate	10.328 \| good	45.822 \| good	35.903 \| good	0.27 \| good	2.854 \| good	0.156 \| good
2026-06-30T04:00:00.000Z	52 \| moderate	9.71 \| good	43.133 \| good	30.97 \| good	0.283 \| good	3.056 \| good	0.153 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.692 \| good	38.047 \| good	26.169 \| good	0.286 \| good	3.26 \| good	0.151 \| good
2026-06-30T06:00:00.000Z	49 \| good	8.801 \| good	38.427 \| good	26.69 \| good	0.312 \| good	3.377 \| good	0.147 \| good
2026-06-30T07:00:00.000Z	49 \| good	8.688 \| good	38.17 \| good	25.639 \| good	0.326 \| good	3.704 \| good	0.144 \| good
2026-06-30T08:00:00.000Z	49 \| good	8.773 \| good	38.427 \| good	23.134 \| good	0.341 \| good	4.117 \| good	0.142 \| good
2026-06-30T09:00:00.000Z	49 \| good	9.044 \| good	40.682 \| good	26.02 \| good	0.36 \| good	4.636 \| good	0.141 \| good
2026-06-30T10:00:00.000Z	49 \| good	9.266 \| good	41.317 \| good	22.904 \| good	0.366 \| good	5.696 \| good	0.142 \| good
2026-06-30T11:00:00.000Z	49 \| good	8.699 \| good	38.039 \| good	27.316 \| good	0.402 \| good	5.883 \| good	0.145 \| good
2026-06-30T12:00:00.000Z	44 \| good	8.137 \| good	35.359 \| good	31.107 \| good	0.448 \| good	6.185 \| good	0.154 \| good
2026-06-30T13:00:00.000Z	44 \| good	8.473 \| good	37.278 \| good	34.354 \| good	0.5 \| good	6.549 \| good	0.171 \| good
2026-06-30T14:00:00.000Z	49 \| good	8.711 \| good	38.1 \| good	38.7 \| good	0.522 \| good	6.742 \| good	0.189 \| good
2026-06-30T15:00:00.000Z	52 \| moderate	9.784 \| good	43.57 \| good	45.64 \| good	0.512 \| good	6.291 \| good	0.195 \| good
2026-06-30T16:00:00.000Z	52 \| moderate	9.813 \| good	43.647 \| good	54.1 \| good	0.464 \| good	5.488 \| good	0.192 \| good
2026-06-30T17:00:00.000Z	58 \| moderate	7.912 \| good	35.109 \| good	56.553 \| fine	0.416 \| good	4.244 \| good	0.181 \| good
2026-06-30T18:00:00.000Z	51 \| moderate	6.121 \| good	26.564 \| good	54.78 \| good	0.367 \| good	2.994 \| good	0.166 \| good
2026-06-30T19:00:00.000Z	46 \| good	6.297 \| good	27.842 \| good	50.15 \| good	0.317 \| good	2.062 \| good	0.15 \| good
2026-06-30T20:00:00.000Z	42 \| good	6.329 \| good	28.273 \| good	44.771 \| good	0.252 \| good	1.535 \| good	0.137 \| good
2026-06-30T21:00:00.000Z	40 \| good	5.552 \| good	23.961 \| good	42.626 \| good	0.179 \| good	1.402 \| good	0.13 \| good
2026-06-30T22:00:00.000Z	37 \| good	4.462 \| good	19.662 \| good	40.363 \| good	0.132 \| good	1.612 \| good	0.13 \| good
2026-06-30T23:00:00.000Z	36 \| good	4.234 \| good	18.481 \| good	38.738 \| good	0.111 \| good	1.864 \| good	0.13 \| good
2026-07-01T00:00:00.000Z	35 \| good	6.007 \| good	26.521 \| good	38.198 \| good	0.104 \| good	1.984 \| good	0.129 \| good
2026-07-01T01:00:00.000Z	33 \| good	5.79 \| good	24.958 \| good	36.365 \| good	0.119 \| good	1.877 \| good	0.127 \| good
2026-07-01T02:00:00.000Z	33 \| good	6.337 \| good	28.032 \| good	36.393 \| good	0.145 \| good	1.844 \| good	0.126 \| good
2026-07-01T03:00:00.000Z	38 \| good	6.913 \| good	30.794 \| good	37.106 \| good	0.171 \| good	1.942 \| good	0.125 \| good
2026-07-01T04:00:00.000Z	38 \| good	6.865 \| good	30.254 \| good	37.516 \| good	0.197 \| good	2.156 \| good	0.126 \| good
2026-07-01T05:00:00.000Z	33 \| good	6.477 \| good	29.012 \| good	36.138 \| good	0.234 \| good	2.491 \| good	0.126 \| good
2026-07-01T06:00:00.000Z	38 \| good	6.853 \| good	30.247 \| good	34.66 \| good	0.259 \| good	2.54 \| good	0.125 \| good
2026-07-01T07:00:00.000Z	38 \| good	7.311 \| good	32.247 \| good	31.736 \| good	0.264 \| good	2.506 \| good	0.123 \| good
2026-07-01T08:00:00.000Z	44 \| good	7.733 \| good	34.098 \| good	28.152 \| good	0.272 \| good	2.48 \| good	0.122 \| good
2026-07-01T09:00:00.000Z	38 \| good	7.26 \| good	32.079 \| good	20.669 \| good	0.282 \| good	2.521 \| good	0.122 \| good
2026-07-01T10:00:00.000Z	38 \| good	7.219 \| good	32.195 \| good	19.727 \| good	0.284 \| good	2.632 \| good	0.123 \| good
2026-07-01T11:00:00.000Z	38 \| good	7.484 \| good	33.067 \| good	25.299 \| good	0.286 \| good	2.546 \| good	0.125 \| good
2026-07-01T12:00:00.000Z	44 \| good	8.344 \| good	36.925 \| good	30.586 \| good	0.301 \| good	2.685 \| good	0.13 \| good
2026-07-01T13:00:00.000Z	54 \| moderate	10.542 \| good	46.459 \| good	35.78 \| good	0.358 \| good	2.775 \| good	0.139 \| good
2026-07-01T14:00:00.000Z	58 \| moderate	13.329 \| fine	59.667 \| fine	43.959 \| good	0.367 \| good	2.679 \| good	0.148 \| good
2026-07-01T15:00:00.000Z	67 \| moderate	16.86 \| fine	75.203 \| fine	59.846 \| fine	0.351 \| good	2.418 \| good	0.153 \| good
2026-07-01T16:00:00.000Z	122 \| sensitive	19.647 \| fine	86.694 \| fine	77.215 \| moderate	0.328 \| good	2.022 \| good	0.154 \| good
2026-07-01T17:00:00.000Z	154 \| unhealthy	21.273 \| fine	93.237 \| fine	86.527 \| poor	0.307 \| good	1.65 \| good	0.152 \| good
2026-07-01T18:00:00.000Z	166 \| unhealthy	21.041 \| fine	92.428 \| fine	91.603 \| poor	0.278 \| good	1.424 \| good	0.148 \| good

Old Saybrook

Get reliable air quality data to drive your business

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

0.22ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 05:00:00 on 2026-06-29.

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 09:00:00 on 2026-06-29.

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

As of now, the AQI in Old Saybrook, Connecticut is 54, 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 10.63 μg/m³.

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

The PM₁₀ concentration in Old Saybrook, Connecticut is 39.368 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 0.19 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 0.286 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 50.113 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 9.448 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T19:00:00.000Z	35 \| good	6.351 \| good	14.399 \| good	38.276 \| good	0.285 \| good	10.491 \| good	0.227 \| good
2026-06-27T20:00:00.000Z	44 \| good	6.784 \| good	10.559 \| good	47.715 \| good	0.183 \| good	9.847 \| good	0.199 \| good
2026-06-27T21:00:00.000Z	40 \| good	6.252 \| good	14.507 \| good	43.241 \| good	0.189 \| good	7.388 \| good	0.167 \| good
2026-06-27T22:00:00.000Z	41 \| good	6.793 \| good	17.083 \| good	43.69 \| good	0.265 \| good	9.046 \| good	0.195 \| good
2026-06-27T23:00:00.000Z	44 \| good	8.233 \| good	34.399 \| good	46.114 \| good	0.23 \| good	12.868 \| good	0.213 \| good
2026-06-28T00:00:00.000Z	41 \| good	7.034 \| good	44.364 \| good	41.091 \| good	0.148 \| good	5.973 \| good	0.259 \| good
2026-06-28T01:00:00.000Z	44 \| good	8.333 \| good	34.104 \| good	43.339 \| good	0.181 \| good	11.207 \| good	0.226 \| good
2026-06-28T02:00:00.000Z	54 \| moderate	10.695 \| good	33.956 \| good	40.537 \| good	0.181 \| good	3.884 \| good	0.254 \| good
2026-06-28T03:00:00.000Z	58 \| moderate	12.544 \| fine	57 \| fine	39.877 \| good	0.397 \| good	5.573 \| good	0.23 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	12.208 \| fine	37.861 \| good	33.088 \| good	0.186 \| good	6.289 \| good	0.299 \| good
2026-06-28T05:00:00.000Z	54 \| moderate	11.075 \| good	45.624 \| good	32.46 \| good	0.151 \| good	9.274 \| good	0.331 \| good
2026-06-28T06:00:00.000Z	56 \| moderate	12.462 \| fine	45.222 \| good	19.612 \| good	0.134 \| good	7.883 \| good	0.33 \| good
2026-06-28T07:00:00.000Z	60 \| moderate	13.591 \| fine	71.164 \| fine	28.196 \| good	0.345 \| good	3.879 \| good	0.282 \| good
2026-06-28T08:00:00.000Z	57 \| moderate	12.064 \| good	68.311 \| fine	25.611 \| good	0.163 \| good	6.22 \| good	0.29 \| good
2026-06-28T09:00:00.000Z	60 \| moderate	13.605 \| fine	51.429 \| good	18.307 \| good	0.276 \| good	5.904 \| good	0.258 \| good
2026-06-28T10:00:00.000Z	58 \| moderate	12.574 \| fine	35.413 \| good	26.017 \| good	0.164 \| good	4.643 \| good	0.239 \| good
2026-06-28T11:00:00.000Z	52 \| moderate	10.371 \| good	54.908 \| good	21.939 \| good	0.276 \| good	8.532 \| good	0.285 \| good
2026-06-28T12:00:00.000Z	44 \| good	8.283 \| good	21.658 \| good	20.486 \| good	0.386 \| good	6.27 \| good	0.231 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.045 \| good	39.589 \| good	31.4 \| good	0.476 \| good	6.33 \| good	0.199 \| good
2026-06-28T14:00:00.000Z	52 \| moderate	10.115 \| good	23.118 \| good	28.912 \| good	0.193 \| good	4.447 \| good	0.186 \| good
2026-06-28T15:00:00.000Z	54 \| moderate	10.514 \| good	38.175 \| good	35.671 \| good	0.184 \| good	3.199 \| good	0.158 \| good
2026-06-28T16:00:00.000Z	54 \| moderate	10.513 \| good	24.812 \| good	40.586 \| good	0.251 \| good	4.632 \| good	0.19 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	10.239 \| good	21.941 \| good	47.883 \| good	0.201 \| good	4.914 \| good	0.171 \| good
2026-06-28T18:00:00.000Z	49 \| good	9.384 \| good	23.13 \| good	49.157 \| good	0.198 \| good	4.435 \| good	0.186 \| good
2026-06-28T19:00:00.000Z	49 \| good	8.544 \| good	26.961 \| good	49.126 \| good	0.165 \| good	3.179 \| good	0.218 \| good
2026-06-28T20:00:00.000Z	51 \| moderate	8.918 \| good	26.3 \| good	54.56 \| good	0.189 \| good	2.977 \| good	0.186 \| good
2026-06-28T21:00:00.000Z	49 \| good	8.82 \| good	27.251 \| good	51.72 \| good	0.223 \| good	4.013 \| good	0.186 \| good
2026-06-28T22:00:00.000Z	50 \| good	7.577 \| good	17.576 \| good	53.757 \| good	0.186 \| good	5.018 \| good	0.214 \| good
2026-06-28T23:00:00.000Z	47 \| good	6.715 \| good	13.105 \| good	51.338 \| good	0.168 \| good	5.727 \| good	0.186 \| good
2026-06-29T00:00:00.000Z	48 \| good	6.101 \| good	17.706 \| good	52.034 \| good	0.168 \| good	5.066 \| good	0.267 \| good
2026-06-29T01:00:00.000Z	45 \| good	6.56 \| good	15.426 \| good	48.501 \| good	0.168 \| good	4.397 \| good	0.199 \| good
2026-06-29T02:00:00.000Z	40 \| good	6.353 \| good	18.58 \| good	43.24 \| good	0.203 \| good	5.012 \| good	0.199 \| good
2026-06-29T03:00:00.000Z	49 \| good	9.49 \| good	42.597 \| good	36.582 \| good	0.279 \| good	2.473 \| good	0.17 \| good
2026-06-29T04:00:00.000Z	38 \| good	6.797 \| good	15.921 \| good	41.134 \| good	0.311 \| good	5.777 \| good	0.24 \| good
2026-06-29T05:00:00.000Z	38 \| good	7.431 \| good	24.853 \| good	34.654 \| good	0.423 \| good	7.422 \| good	0.182 \| good
2026-06-29T06:00:00.000Z	38 \| good	7.081 \| good	29.663 \| good	33.87 \| good	0.16 \| good	8.814 \| good	0.186 \| good
2026-06-29T07:00:00.000Z	44 \| good	7.786 \| good	27.311 \| good	24.342 \| good	0.316 \| good	8.377 \| good	0.182 \| good
2026-06-29T08:00:00.000Z	49 \| good	8.939 \| good	26.117 \| good	27.313 \| good	0.16 \| good	9.531 \| good	0.186 \| good
2026-06-29T09:00:00.000Z	33 \| good	6.36 \| good	21.295 \| good	27.005 \| good	0.16 \| good	8.965 \| good	0.199 \| good
2026-06-29T10:00:00.000Z	38 \| good	6.805 \| good	27.677 \| good	23.768 \| good	0.177 \| good	13.44 \| good	0.29 \| good
2026-06-29T11:00:00.000Z	49 \| good	8.624 \| good	35.084 \| good	22.319 \| good	0.163 \| good	9.675 \| good	0.29 \| good
2026-06-29T12:00:00.000Z	52 \| moderate	9.98 \| good	26.454 \| good	14.595 \| good	0.133 \| good	7.88 \| good	0.238 \| good
2026-06-29T13:00:00.000Z	49 \| good	8.665 \| good	22.899 \| good	18.548 \| good	0.193 \| good	8.379 \| good	0.24 \| good
2026-06-29T14:00:00.000Z	44 \| good	8.195 \| good	29.452 \| good	26.61 \| good	0.226 \| good	7.368 \| good	0.198 \| good
2026-06-29T15:00:00.000Z	49 \| good	8.971 \| good	30.344 \| good	27.967 \| good	0.261 \| good	5.834 \| good	0.198 \| good
2026-06-29T16:00:00.000Z	52 \| moderate	10.267 \| good	43.59 \| good	28.911 \| good	0.239 \| good	6.511 \| good	0.213 \| good
2026-06-29T17:00:00.000Z	52 \| moderate	10.098 \| good	21.59 \| good	48.698 \| good	0.271 \| good	10.996 \| good	0.177 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	10.63 \| good	39.368 \| good	50.113 \| good	0.286 \| good	9.448 \| good	0.19 \| good
2026-06-29T18:00:00.000Z	54 \| moderate	10.63 \| good	39.368 \| good	50.113 \| good	0.286 \| good	9.448 \| good	0.19 \| good
2026-06-29T19:00:00.000Z	54 \| moderate	9.431 \| good	41.884 \| good	55.573 \| fine	0.281 \| good	2.278 \| good	0.21 \| good
2026-06-29T20:00:00.000Z	52 \| moderate	9.905 \| good	43.503 \| good	55.093 \| fine	0.25 \| good	2.562 \| good	0.211 \| good
2026-06-29T21:00:00.000Z	52 \| moderate	9.711 \| good	43.537 \| good	53.411 \| good	0.224 \| good	2.874 \| good	0.207 \| good
2026-06-29T22:00:00.000Z	49 \| good	8.88 \| good	39.147 \| good	51.642 \| good	0.221 \| good	3.157 \| good	0.198 \| good
2026-06-29T23:00:00.000Z	45 \| good	8.439 \| good	36.845 \| good	48.789 \| good	0.202 \| good	3.791 \| good	0.193 \| good
2026-06-30T00:00:00.000Z	49 \| good	9.217 \| good	40.836 \| good	46.486 \| good	0.196 \| good	3.927 \| good	0.184 \| good
2026-06-30T01:00:00.000Z	49 \| good	9.422 \| good	41.945 \| good	43.774 \| good	0.214 \| good	3.535 \| good	0.173 \| good
2026-06-30T02:00:00.000Z	52 \| moderate	10.143 \| good	45.086 \| good	40.262 \| good	0.232 \| good	3.15 \| good	0.164 \| good
2026-06-30T03:00:00.000Z	52 \| moderate	10.328 \| good	45.822 \| good	35.903 \| good	0.27 \| good	2.854 \| good	0.156 \| good
2026-06-30T04:00:00.000Z	52 \| moderate	9.71 \| good	43.133 \| good	30.97 \| good	0.283 \| good	3.056 \| good	0.153 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.692 \| good	38.047 \| good	26.169 \| good	0.286 \| good	3.26 \| good	0.151 \| good
2026-06-30T06:00:00.000Z	49 \| good	8.801 \| good	38.427 \| good	26.69 \| good	0.312 \| good	3.377 \| good	0.147 \| good
2026-06-30T07:00:00.000Z	49 \| good	8.688 \| good	38.17 \| good	25.639 \| good	0.326 \| good	3.704 \| good	0.144 \| good
2026-06-30T08:00:00.000Z	49 \| good	8.773 \| good	38.427 \| good	23.134 \| good	0.341 \| good	4.117 \| good	0.142 \| good
2026-06-30T09:00:00.000Z	49 \| good	9.044 \| good	40.682 \| good	26.02 \| good	0.36 \| good	4.636 \| good	0.141 \| good
2026-06-30T10:00:00.000Z	49 \| good	9.266 \| good	41.317 \| good	22.904 \| good	0.366 \| good	5.696 \| good	0.142 \| good
2026-06-30T11:00:00.000Z	49 \| good	8.699 \| good	38.039 \| good	27.316 \| good	0.402 \| good	5.883 \| good	0.145 \| good
2026-06-30T12:00:00.000Z	44 \| good	8.137 \| good	35.359 \| good	31.107 \| good	0.448 \| good	6.185 \| good	0.154 \| good
2026-06-30T13:00:00.000Z	44 \| good	8.473 \| good	37.278 \| good	34.354 \| good	0.5 \| good	6.549 \| good	0.171 \| good
2026-06-30T14:00:00.000Z	49 \| good	8.711 \| good	38.1 \| good	38.7 \| good	0.522 \| good	6.742 \| good	0.189 \| good
2026-06-30T15:00:00.000Z	52 \| moderate	9.784 \| good	43.57 \| good	45.64 \| good	0.512 \| good	6.291 \| good	0.195 \| good
2026-06-30T16:00:00.000Z	52 \| moderate	9.813 \| good	43.647 \| good	54.1 \| good	0.464 \| good	5.488 \| good	0.192 \| good
2026-06-30T17:00:00.000Z	58 \| moderate	7.912 \| good	35.109 \| good	56.553 \| fine	0.416 \| good	4.244 \| good	0.181 \| good
2026-06-30T18:00:00.000Z	51 \| moderate	6.121 \| good	26.564 \| good	54.78 \| good	0.367 \| good	2.994 \| good	0.166 \| good
2026-06-30T19:00:00.000Z	46 \| good	6.297 \| good	27.842 \| good	50.15 \| good	0.317 \| good	2.062 \| good	0.15 \| good
2026-06-30T20:00:00.000Z	42 \| good	6.329 \| good	28.273 \| good	44.771 \| good	0.252 \| good	1.535 \| good	0.137 \| good
2026-06-30T21:00:00.000Z	40 \| good	5.552 \| good	23.961 \| good	42.626 \| good	0.179 \| good	1.402 \| good	0.13 \| good
2026-06-30T22:00:00.000Z	37 \| good	4.462 \| good	19.662 \| good	40.363 \| good	0.132 \| good	1.612 \| good	0.13 \| good
2026-06-30T23:00:00.000Z	36 \| good	4.234 \| good	18.481 \| good	38.738 \| good	0.111 \| good	1.864 \| good	0.13 \| good
2026-07-01T00:00:00.000Z	35 \| good	6.007 \| good	26.521 \| good	38.198 \| good	0.104 \| good	1.984 \| good	0.129 \| good
2026-07-01T01:00:00.000Z	33 \| good	5.79 \| good	24.958 \| good	36.365 \| good	0.119 \| good	1.877 \| good	0.127 \| good
2026-07-01T02:00:00.000Z	33 \| good	6.337 \| good	28.032 \| good	36.393 \| good	0.145 \| good	1.844 \| good	0.126 \| good
2026-07-01T03:00:00.000Z	38 \| good	6.913 \| good	30.794 \| good	37.106 \| good	0.171 \| good	1.942 \| good	0.125 \| good
2026-07-01T04:00:00.000Z	38 \| good	6.865 \| good	30.254 \| good	37.516 \| good	0.197 \| good	2.156 \| good	0.126 \| good
2026-07-01T05:00:00.000Z	33 \| good	6.477 \| good	29.012 \| good	36.138 \| good	0.234 \| good	2.491 \| good	0.126 \| good
2026-07-01T06:00:00.000Z	38 \| good	6.853 \| good	30.247 \| good	34.66 \| good	0.259 \| good	2.54 \| good	0.125 \| good
2026-07-01T07:00:00.000Z	38 \| good	7.311 \| good	32.247 \| good	31.736 \| good	0.264 \| good	2.506 \| good	0.123 \| good
2026-07-01T08:00:00.000Z	44 \| good	7.733 \| good	34.098 \| good	28.152 \| good	0.272 \| good	2.48 \| good	0.122 \| good
2026-07-01T09:00:00.000Z	38 \| good	7.26 \| good	32.079 \| good	20.669 \| good	0.282 \| good	2.521 \| good	0.122 \| good
2026-07-01T10:00:00.000Z	38 \| good	7.219 \| good	32.195 \| good	19.727 \| good	0.284 \| good	2.632 \| good	0.123 \| good
2026-07-01T11:00:00.000Z	38 \| good	7.484 \| good	33.067 \| good	25.299 \| good	0.286 \| good	2.546 \| good	0.125 \| good
2026-07-01T12:00:00.000Z	44 \| good	8.344 \| good	36.925 \| good	30.586 \| good	0.301 \| good	2.685 \| good	0.13 \| good
2026-07-01T13:00:00.000Z	54 \| moderate	10.542 \| good	46.459 \| good	35.78 \| good	0.358 \| good	2.775 \| good	0.139 \| good
2026-07-01T14:00:00.000Z	58 \| moderate	13.329 \| fine	59.667 \| fine	43.959 \| good	0.367 \| good	2.679 \| good	0.148 \| good
2026-07-01T15:00:00.000Z	67 \| moderate	16.86 \| fine	75.203 \| fine	59.846 \| fine	0.351 \| good	2.418 \| good	0.153 \| good
2026-07-01T16:00:00.000Z	122 \| sensitive	19.647 \| fine	86.694 \| fine	77.215 \| moderate	0.328 \| good	2.022 \| good	0.154 \| good
2026-07-01T17:00:00.000Z	154 \| unhealthy	21.273 \| fine	93.237 \| fine	86.527 \| poor	0.307 \| good	1.65 \| good	0.152 \| good
2026-07-01T18:00:00.000Z	166 \| unhealthy	21.041 \| fine	92.428 \| fine	91.603 \| poor	0.278 \| good	1.424 \| good	0.148 \| 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)

Track live Old Saybrook, Connecticut air quality forecast and history

Get reliable air quality data to drive your business

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

How accurate is Connecticut, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is air quality information updated for Old Saybrook, Connecticut?

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

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

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

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

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

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?