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

The PM10 concentration in Norwich, Connecticut is 19.968 μg/m3 at the moment.

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

Currently, Norwich, Connecticut has a sulfur dioxide (SO2) concentration of 0.314 ppb.

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

The current ozone (O3) level in Norwich, Connecticut at the moment is 47.512 ppm.

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

Nitrogen dioxide (NO2) level in Norwich, Connecticut at the moment is 2.969 ppb.

Live air quality index in Norwich, Connecticut today

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

PM2.5 levels in Norwich, Connecticut are currently 4.634 μg/m3.

Stay updated with real-time air quality in Norwich, 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

Norwich, Connecticut

Last updated: ... (Local time)

Major air pollutants in Norwich, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.63 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

19.97 μg/m³

155

255

425

605+

Ozone (O₃)

47.51 ppb

201

201+

Sulfur Dioxide (SO₂)

0.31 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.97 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

Please contact us for custom requests

Norwich, Connecticut

Scroll To Air Quality Map

Track live Norwich, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-28T00:00:00.000Z	37 \| good	2.415 \| good	7.909 \| good	39.532 \| good	0.174 \| good	7.708 \| good	0.282 \| good
2026-03-28T01:00:00.000Z	37 \| good	3.089 \| good	11.05 \| good	39.938 \| good	0.215 \| good	8.15 \| good	0.242 \| good
2026-03-28T02:00:00.000Z	35 \| good	3.503 \| good	7.899 \| good	38.456 \| good	0.195 \| good	7.188 \| good	0.221 \| good
2026-03-28T03:00:00.000Z	36 \| good	4.304 \| good	12.827 \| good	38.806 \| good	0.142 \| good	8.122 \| good	0.3 \| good
2026-03-28T04:00:00.000Z	31 \| good	4.872 \| good	18.78 \| good	32.671 \| good	0.141 \| good	9.765 \| good	0.236 \| good
2026-03-28T05:00:00.000Z	33 \| good	4.585 \| good	14.123 \| good	36.076 \| good	0.174 \| good	11.778 \| good	0.236 \| good
2026-03-28T06:00:00.000Z	28 \| good	4.389 \| good	14.562 \| good	30.129 \| good	0.261 \| good	11.123 \| good	0.23 \| good
2026-03-28T07:00:00.000Z	29 \| good	4.532 \| good	13.23 \| good	31.216 \| good	0.16 \| good	8.701 \| good	0.187 \| good
2026-03-28T08:00:00.000Z	27 \| good	4.169 \| good	12.971 \| good	28.624 \| good	0.174 \| good	6.07 \| good	0.2 \| good
2026-03-28T09:00:00.000Z	30 \| good	4.04 \| good	11.292 \| good	31.878 \| good	0.174 \| good	4.596 \| good	0.181 \| good
2026-03-28T10:00:00.000Z	31 \| good	3.77 \| good	14.563 \| good	33.578 \| good	0.14 \| good	3.886 \| good	0.177 \| good
2026-03-28T11:00:00.000Z	33 \| good	4.226 \| good	11.586 \| good	36.31 \| good	0.174 \| good	4.614 \| good	0.18 \| good
2026-03-28T12:00:00.000Z	35 \| good	3.91 \| good	12.251 \| good	37.601 \| good	0.174 \| good	4.009 \| good	0.222 \| good
2026-03-28T13:00:00.000Z	34 \| good	3.489 \| good	15.173 \| good	37.454 \| good	0.193 \| good	2.789 \| good	0.23 \| good
2026-03-28T14:00:00.000Z	36 \| good	3.811 \| good	12.183 \| good	38.873 \| good	0.206 \| good	2.628 \| good	0.198 \| good
2026-03-28T15:00:00.000Z	35 \| good	3.751 \| good	13.574 \| good	38.462 \| good	0.121 \| good	2.086 \| good	0.198 \| good
2026-03-28T16:00:00.000Z	36 \| good	3.438 \| good	11.308 \| good	39.364 \| good	0.21 \| good	1.819 \| good	0.18 \| good
2026-03-28T17:00:00.000Z	38 \| good	3.694 \| good	10.886 \| good	41.393 \| good	0.192 \| good	1.446 \| good	0.18 \| good
2026-03-28T18:00:00.000Z	40 \| good	3.118 \| good	9.176 \| good	42.948 \| good	0.195 \| good	1.386 \| good	0.203 \| good
2026-03-28T19:00:00.000Z	38 \| good	3.487 \| good	9.839 \| good	41.023 \| good	0.215 \| good	1.593 \| good	0.203 \| good
2026-03-28T20:00:00.000Z	39 \| good	3.326 \| good	11.306 \| good	42.344 \| good	0.178 \| good	2.717 \| good	0.203 \| good
2026-03-28T21:00:00.000Z	39 \| good	4.191 \| good	16.994 \| good	41.713 \| good	0.192 \| good	2.579 \| good	0.242 \| good
2026-03-28T22:00:00.000Z	40 \| good	3.71 \| good	16.155 \| good	43.049 \| good	0.157 \| good	2.119 \| good	0.198 \| good
2026-03-28T23:00:00.000Z	38 \| good	3.227 \| good	11.669 \| good	41.332 \| good	0.157 \| good	2.051 \| good	0.225 \| good
2026-03-29T00:00:00.000Z	37 \| good	3.616 \| good	17.475 \| good	40.448 \| good	0.272 \| good	2.817 \| good	0.225 \| good
2026-03-29T01:00:00.000Z	39 \| good	3.682 \| good	17.275 \| good	41.548 \| good	0.266 \| good	4.406 \| good	0.285 \| good
2026-03-29T02:00:00.000Z	36 \| good	3.396 \| good	8.729 \| good	39.436 \| good	0.271 \| good	4.454 \| good	0.264 \| good
2026-03-29T03:00:00.000Z	31 \| good	2.273 \| good	9.626 \| good	32.942 \| good	0.582 \| good	3.775 \| good	0.212 \| good
2026-03-29T04:00:00.000Z	35 \| good	4.125 \| good	16.137 \| good	37.593 \| good	0.191 \| good	7.401 \| good	0.239 \| good
2026-03-29T05:00:00.000Z	36 \| good	3.516 \| good	11.924 \| good	39.231 \| good	0.268 \| good	7.447 \| good	0.221 \| good
2026-03-29T06:00:00.000Z	35 \| good	3.718 \| good	13.006 \| good	37.586 \| good	0.268 \| good	3.928 \| good	0.221 \| good
2026-03-29T07:00:00.000Z	36 \| good	3.488 \| good	13.452 \| good	38.682 \| good	0.381 \| good	9.635 \| good	0.235 \| good
2026-03-29T08:00:00.000Z	27 \| good	4.397 \| good	11.884 \| good	29.078 \| good	0.282 \| good	9.286 \| good	0.286 \| good
2026-03-29T09:00:00.000Z	25 \| good	4.246 \| good	15.79 \| good	27.118 \| good	0.368 \| good	11.263 \| good	0.304 \| good
2026-03-29T10:00:00.000Z	27 \| good	4.792 \| good	17.262 \| good	27.204 \| good	0.304 \| good	13.562 \| good	0.299 \| good
2026-03-29T11:00:00.000Z	28 \| good	4.636 \| good	10.462 \| good	29.753 \| good	0.336 \| good	15.959 \| good	0.36 \| good
2026-03-29T12:00:00.000Z	26 \| good	4.327 \| good	17.27 \| good	28.393 \| good	0.252 \| good	12.36 \| good	0.386 \| good
2026-03-29T13:00:00.000Z	24 \| good	4.493 \| good	10.843 \| good	25.809 \| good	0.251 \| good	10.243 \| good	0.26 \| good
2026-03-29T14:00:00.000Z	30 \| good	4.487 \| good	14.577 \| good	32.213 \| good	0.311 \| good	4.447 \| good	0.248 \| good
2026-03-29T15:00:00.000Z	32 \| good	4.682 \| good	10.421 \| good	34.978 \| good	0.291 \| good	4.433 \| good	0.227 \| good
2026-03-29T16:00:00.000Z	35 \| good	4.34 \| good	14.511 \| good	38.087 \| good	0.161 \| good	2.541 \| good	0.21 \| good
2026-03-29T17:00:00.000Z	39 \| good	3.993 \| good	15.833 \| good	41.768 \| good	0.245 \| good	2.123 \| good	0.247 \| good
2026-03-29T18:00:00.000Z	40 \| good	4.284 \| good	9.783 \| good	43.237 \| good	0.156 \| good	2.752 \| good	0.227 \| good
2026-03-29T19:00:00.000Z	41 \| good	4.187 \| good	12.059 \| good	44.468 \| good	0.154 \| good	1.954 \| good	0.227 \| good
2026-03-29T20:00:00.000Z	42 \| good	4.755 \| good	11.68 \| good	45.057 \| good	0.192 \| good	3.083 \| good	0.227 \| good
2026-03-29T21:00:00.000Z	43 \| good	4.545 \| good	17.123 \| good	45.913 \| good	0.192 \| good	3.724 \| good	0.227 \| good
2026-03-29T22:00:00.000Z	44 \| good	4.634 \| good	19.968 \| good	47.512 \| good	0.314 \| good	2.969 \| good	0.203 \| good
2026-03-29T23:00:00.000Z	44 \| good	4.411 \| good	18.815 \| good	46.588 \| good	0.337 \| good	4.52 \| good	0.225 \| good
2026-03-29T23:00:00.000Z	44 \| good	4.634 \| good	19.968 \| good	47.512 \| good	0.314 \| good	2.969 \| good	0.203 \| good
2026-03-30T00:00:00.000Z	36 \| good	6.121 \| good	27.327 \| good	38.879 \| good	1.004 \| good	3.736 \| good	0.182 \| good
2026-03-30T01:00:00.000Z	38 \| good	5.155 \| good	22.074 \| good	41.42 \| good	0.935 \| good	3.257 \| good	0.178 \| good
2026-03-30T02:00:00.000Z	37 \| good	4.672 \| good	20.55 \| good	40.081 \| good	0.866 \| good	2.778 \| good	0.174 \| good
2026-03-30T03:00:00.000Z	36 \| good	5.004 \| good	21.665 \| good	38.815 \| good	0.796 \| good	2.299 \| good	0.17 \| good
2026-03-30T04:00:00.000Z	35 \| good	5.631 \| good	24.491 \| good	38.224 \| good	0.692 \| good	2.06 \| good	0.162 \| good
2026-03-30T05:00:00.000Z	35 \| good	5.547 \| good	23.85 \| good	38.239 \| good	0.589 \| good	1.821 \| good	0.154 \| good
2026-03-30T06:00:00.000Z	36 \| good	5.874 \| good	25.774 \| good	39.124 \| good	0.485 \| good	1.582 \| good	0.145 \| good
2026-03-30T07:00:00.000Z	37 \| good	4.646 \| good	20.26 \| good	40.46 \| good	0.464 \| good	1.396 \| good	0.147 \| good
2026-03-30T08:00:00.000Z	37 \| good	4.326 \| good	18.811 \| good	39.66 \| good	0.444 \| good	1.211 \| good	0.148 \| good
2026-03-30T09:00:00.000Z	35 \| good	4.119 \| good	18.12 \| good	37.901 \| good	0.423 \| good	1.025 \| good	0.15 \| good
2026-03-30T10:00:00.000Z	33 \| good	2.666 \| good	11.241 \| good	36.493 \| good	0.511 \| good	1.543 \| good	0.159 \| good
2026-03-30T11:00:00.000Z	33 \| good	1.826 \| good	7.588 \| good	35.965 \| good	0.598 \| good	2.06 \| good	0.167 \| good
2026-03-30T12:00:00.000Z	32 \| good	1.981 \| good	7.967 \| good	34.621 \| good	0.686 \| good	2.578 \| good	0.176 \| good
2026-03-30T13:00:00.000Z	31 \| good	2.983 \| good	12.237 \| good	33.745 \| good	0.919 \| good	3.296 \| good	0.188 \| good
2026-03-30T14:00:00.000Z	31 \| good	3.869 \| good	16.678 \| good	34.204 \| good	1.151 \| good	4.014 \| good	0.2 \| good
2026-03-30T15:00:00.000Z	31 \| good	4.306 \| good	18.914 \| good	33.437 \| good	1.383 \| good	4.733 \| good	0.212 \| good
2026-03-30T16:00:00.000Z	38 \| good	6.69 \| good	29.72 \| good	33.231 \| good	1.535 \| good	4.825 \| good	0.203 \| good
2026-03-30T17:00:00.000Z	38 \| good	6.896 \| good	30.717 \| good	29.672 \| good	1.686 \| good	4.917 \| good	0.194 \| good
2026-03-30T18:00:00.000Z	49 \| good	9.307 \| good	41.452 \| good	34.696 \| good	1.838 \| good	5.01 \| good	0.185 \| good
2026-03-30T19:00:00.000Z	49 \| good	9.041 \| good	40.009 \| good	37.738 \| good	1.751 \| good	5.18 \| good	0.182 \| good
2026-03-30T20:00:00.000Z	49 \| good	9.453 \| good	42.251 \| good	34.178 \| good	1.665 \| good	5.35 \| good	0.178 \| good
2026-03-30T21:00:00.000Z	52 \| moderate	9.661 \| good	42.785 \| good	33.821 \| good	1.579 \| good	5.521 \| good	0.174 \| good
2026-03-30T22:00:00.000Z	49 \| good	8.939 \| good	39.378 \| good	32.109 \| good	1.541 \| good	6.001 \| good	0.176 \| good
2026-03-30T23:00:00.000Z	52 \| moderate	10.335 \| good	45.741 \| good	25.419 \| good	1.504 \| good	6.482 \| good	0.178 \| good
2026-03-31T00:00:00.000Z	52 \| moderate	10.104 \| good	44.653 \| good	22.457 \| good	1.467 \| good	6.962 \| good	0.18 \| good
2026-03-31T01:00:00.000Z	52 \| moderate	10.29 \| good	45.313 \| good	24.875 \| good	1.605 \| good	7.067 \| good	0.183 \| good
2026-03-31T02:00:00.000Z	58 \| moderate	12.673 \| fine	57.112 \| fine	34.261 \| good	1.743 \| good	7.172 \| good	0.185 \| good
2026-03-31T03:00:00.000Z	54 \| moderate	10.742 \| good	47.342 \| good	38.86 \| good	1.882 \| good	7.276 \| good	0.187 \| good
2026-03-31T04:00:00.000Z	44 \| good	8.325 \| good	36.877 \| good	38.855 \| good	1.783 \| good	6.713 \| good	0.185 \| good
2026-03-31T05:00:00.000Z	44 \| good	8.226 \| good	36.164 \| good	36.894 \| good	1.685 \| good	6.151 \| good	0.182 \| good
2026-03-31T06:00:00.000Z	54 \| moderate	11.273 \| good	12.001 \| good	41.302 \| good	1.617 \| good	5.679 \| good	0.18 \| good
2026-03-31T07:00:00.000Z	58 \| moderate	13.3 \| fine	60.218 \| fine	26.876 \| good	1.463 \| good	5.097 \| good	0.173 \| good
2026-03-31T08:00:00.000Z	60 \| moderate	13.922 \| fine	62.398 \| fine	24.751 \| good	1.34 \| good	4.607 \| good	0.166 \| good
2026-03-31T09:00:00.000Z	56 \| moderate	12.27 \| fine	55.106 \| fine	17.97 \| good	1.217 \| good	4.116 \| good	0.159 \| good
2026-03-31T10:00:00.000Z	38 \| good	6.967 \| good	30.87 \| good	29.811 \| good	1.145 \| good	4.601 \| good	0.158 \| good
2026-03-31T11:00:00.000Z	33 \| good	5.526 \| good	24.133 \| good	30.45 \| good	1.074 \| good	5.087 \| good	0.157 \| good
2026-03-31T12:00:00.000Z	44 \| good	7.962 \| good	8.577 \| good	39.266 \| good	1.021 \| good	5.649 \| good	0.156 \| good
2026-03-31T13:00:00.000Z	44 \| good	8.42 \| good	9 \| good	38.481 \| good	1.095 \| good	5.67 \| good	0.161 \| good
2026-03-31T14:00:00.000Z	44 \| good	7.936 \| good	8.415 \| good	37.696 \| good	1.169 \| good	5.691 \| good	0.166 \| good
2026-03-31T15:00:00.000Z	38 \| good	7.097 \| good	7.623 \| good	36.911 \| good	1.243 \| good	5.712 \| good	0.172 \| good
2026-03-31T16:00:00.000Z	44 \| good	8.206 \| good	8.844 \| good	38.735 \| good	1.319 \| good	5.648 \| good	0.172 \| good
2026-03-31T17:00:00.000Z	38 \| good	6.952 \| good	30.635 \| good	39.874 \| good	1.374 \| good	5.517 \| good	0.172 \| good
2026-03-31T18:00:00.000Z	49 \| good	8.981 \| good	9.789 \| good	42.384 \| good	1.472 \| good	5.521 \| good	0.173 \| good
2026-03-31T19:00:00.000Z	49 \| good	8.68 \| good	9.577 \| good	43.498 \| good	1.34 \| good	5.423 \| good	0.172 \| good
2026-03-31T20:00:00.000Z	44 \| good	8.312 \| good	9.229 \| good	44.611 \| good	1.209 \| good	5.326 \| good	0.17 \| good
2026-03-31T21:00:00.000Z	44 \| good	8.144 \| good	9.427 \| good	45.725 \| good	1.077 \| good	5.228 \| good	0.169 \| good
2026-03-31T22:00:00.000Z	44 \| good	8.17 \| good	9.883 \| good	46.101 \| good	0.966 \| good	5.23 \| good	0.167 \| good
2026-03-31T23:00:00.000Z	44 \| good	7.812 \| good	9.232 \| good	46.476 \| good	0.856 \| good	5.232 \| good	0.165 \| good

Norwich

Get reliable air quality data to drive your business

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

0.20ppm

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 Norwich, Connecticut?

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

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

In the past 24 hours, the air quality in Norwich, Connecticut was at its worst at 10:00:00 on 2026-03-29.

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

In the last 24 hours, the best air quality in Norwich, Connecticut was observed at 01:00:00 on 2026-03-29.

What is the AQI in Norwich, Connecticut right now?

As of now, the AQI in Norwich, Connecticut is 44, indicating Good conditions.

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

Norwich, Connecticut air has the highest levels of O3.

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

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

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

PM_2.5 levels in Norwich, Connecticut are currently 4.634 μg/m³.

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

The PM₁₀ concentration in Norwich, Connecticut is 19.968 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Norwich, Connecticut is 0.203 ppm.

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

Currently, Norwich, Connecticut has a sulfur dioxide (SO₂) concentration of 0.314 ppb.

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

The current ozone (O₃) level in Norwich, Connecticut at the moment is 47.512 ppm.

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

Nitrogen dioxide (NO₂) level in Norwich, Connecticut at the moment is 2.969 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions