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

Currently, Simsbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.365 ppb.

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

The current ozone (O3) level in Simsbury, Connecticut at the moment is 42.902 ppm.

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

Nitrogen dioxide (NO2) level in Simsbury, Connecticut at the moment is 2.928 ppb.

Live air quality index in Simsbury, Connecticut today

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

Stay updated with real-time air quality in Simsbury, 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

Simsbury, Connecticut

Last updated: ... (Local time)

Major air pollutants in Simsbury, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.32 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

31.41 μg/m³

155

255

425

605+

Ozone (O₃)

21.54 ppb

201

201+

Sulfur Dioxide (SO₂)

0.18 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.56 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Simsbury, Connecticut

Get Live Pollen Counts

Simsbury, Connecticut

Scroll To Air Quality Map

Track live Simsbury, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-28T11:00:00.000Z	84 \| moderate	26.713 \| fine	39.704 \| good	10.614 \| good	0.166 \| good	10.536 \| good	0.224 \| good
2025-07-28T12:00:00.000Z	77 \| moderate	22.642 \| fine	36.5 \| good	12.607 \| good	0.194 \| good	10.624 \| good	0.217 \| good
2025-07-28T13:00:00.000Z	69 \| moderate	18.819 \| fine	31.485 \| good	17.651 \| good	0.206 \| good	8.126 \| good	0.213 \| good
2025-07-28T14:00:00.000Z	69 \| moderate	18.541 \| fine	30.023 \| good	15.045 \| good	0.331 \| good	4.556 \| good	0.21 \| good
2025-07-28T15:00:00.000Z	62 \| moderate	15.016 \| fine	26.644 \| good	24.788 \| good	0.224 \| good	4.444 \| good	0.213 \| good
2025-07-28T16:00:00.000Z	60 \| moderate	13.702 \| fine	25.432 \| good	36.681 \| good	0.202 \| good	3.99 \| good	0.202 \| good
2025-07-28T17:00:00.000Z	58 \| moderate	13.498 \| fine	23.772 \| good	36.885 \| good	0.222 \| good	3.627 \| good	0.202 \| good
2025-07-28T18:00:00.000Z	58 \| moderate	13.336 \| fine	23.346 \| good	41.51 \| good	0.376 \| good	3.905 \| good	0.205 \| good
2025-07-28T19:00:00.000Z	58 \| moderate	12.817 \| fine	21.687 \| good	44.289 \| good	0.177 \| good	4.15 \| good	0.204 \| good
2025-07-28T20:00:00.000Z	58 \| moderate	12.599 \| fine	20.778 \| good	45.959 \| good	0.239 \| good	3.451 \| good	0.205 \| good
2025-07-28T21:00:00.000Z	58 \| moderate	12.65 \| fine	21.293 \| good	48.759 \| good	0.185 \| good	3.064 \| good	0.21 \| good
2025-07-28T22:00:00.000Z	58 \| moderate	12.573 \| fine	21.27 \| good	46.742 \| good	0.173 \| good	2.988 \| good	0.209 \| good
2025-07-28T23:00:00.000Z	58 \| moderate	12.781 \| fine	22.344 \| good	46.924 \| good	0.189 \| good	2.743 \| good	0.209 \| good
2025-07-29T00:00:00.000Z	58 \| moderate	12.963 \| fine	22.046 \| good	40.991 \| good	0.234 \| good	4.453 \| good	0.211 \| good
2025-07-29T01:00:00.000Z	58 \| moderate	12.967 \| fine	21.87 \| good	35.074 \| good	0.185 \| good	4.503 \| good	0.212 \| good
2025-07-29T02:00:00.000Z	60 \| moderate	13.727 \| fine	22.56 \| good	31.331 \| good	0.225 \| good	8.784 \| good	0.295 \| good
2025-07-29T03:00:00.000Z	60 \| moderate	14.495 \| fine	23.806 \| good	30.069 \| good	0.206 \| good	17.091 \| good	0.47 \| good
2025-07-29T04:00:00.000Z	60 \| moderate	14.102 \| fine	23.697 \| good	32.138 \| good	0.197 \| good	11.722 \| good	0.471 \| good
2025-07-29T05:00:00.000Z	60 \| moderate	14.066 \| fine	23.861 \| good	33.778 \| good	0.797 \| good	10.53 \| good	0.383 \| good
2025-07-29T06:00:00.000Z	60 \| moderate	14.113 \| fine	22.153 \| good	28.447 \| good	0.727 \| good	8.133 \| good	0.382 \| good
2025-07-29T07:00:00.000Z	60 \| moderate	14.097 \| fine	22.643 \| good	25.307 \| good	0.259 \| good	8.121 \| good	0.383 \| good
2025-07-29T08:00:00.000Z	60 \| moderate	14.459 \| fine	24.127 \| good	23.955 \| good	0.23 \| good	8.03 \| good	0.383 \| good
2025-07-29T09:00:00.000Z	62 \| moderate	14.584 \| fine	25.034 \| good	20.57 \| good	0.198 \| good	13.02 \| good	0.382 \| good
2025-07-29T10:00:00.000Z	62 \| moderate	14.657 \| fine	25.063 \| good	15.738 \| good	0.197 \| good	12.916 \| good	0.391 \| good
2025-07-29T11:00:00.000Z	62 \| moderate	14.887 \| fine	25.33 \| good	16.217 \| good	0.22 \| good	14.367 \| good	0.48 \| good
2025-07-29T12:00:00.000Z	62 \| moderate	15.264 \| fine	26.292 \| good	14.851 \| good	0.22 \| good	15.566 \| good	0.576 \| good
2025-07-29T13:00:00.000Z	62 \| moderate	15.225 \| fine	26.844 \| good	18.882 \| good	0.247 \| good	17.319 \| good	0.662 \| good
2025-07-29T14:00:00.000Z	64 \| moderate	15.839 \| fine	29.001 \| good	24.167 \| good	0.318 \| good	13.597 \| good	0.48 \| good
2025-07-29T15:00:00.000Z	64 \| moderate	16.059 \| fine	28.334 \| good	31.863 \| good	0.505 \| good	13.389 \| good	0.479 \| good
2025-07-29T16:00:00.000Z	64 \| moderate	15.77 \| fine	28.284 \| good	40.381 \| good	0.47 \| good	10.893 \| good	0.39 \| good
2025-07-29T17:00:00.000Z	62 \| moderate	15.121 \| fine	28.026 \| good	38.634 \| good	0.393 \| good	8.718 \| good	0.39 \| good
2025-07-29T18:00:00.000Z	60 \| moderate	14.295 \| fine	27.721 \| good	43.624 \| good	0.337 \| good	4.515 \| good	0.827 \| good
2025-07-29T19:00:00.000Z	58 \| moderate	13.433 \| fine	27.555 \| good	46.229 \| good	0.323 \| good	8.302 \| good	0.385 \| good
2025-07-29T20:00:00.000Z	56 \| moderate	12.465 \| fine	25.68 \| good	55.822 \| fine	0.385 \| good	7.605 \| good	0.298 \| good
2025-07-29T21:00:00.000Z	67 \| moderate	11.753 \| good	22.12 \| good	60.335 \| fine	0.413 \| good	4.193 \| good	0.21 \| good
2025-07-29T22:00:00.000Z	56 \| moderate	11.6 \| good	22.552 \| good	53.712 \| good	0.305 \| good	4.678 \| good	0.21 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	10.959 \| good	21.105 \| good	43.194 \| good	0.363 \| good	4.715 \| good	0.21 \| good
2025-07-30T00:00:00.000Z	54 \| moderate	10.947 \| good	19.56 \| good	42.312 \| good	0.36 \| good	5.552 \| good	0.212 \| good
2025-07-30T01:00:00.000Z	54 \| moderate	10.987 \| good	19.486 \| good	41.53 \| good	0.342 \| good	5.626 \| good	0.206 \| good
2025-07-30T02:00:00.000Z	54 \| moderate	11.288 \| good	19.953 \| good	37.807 \| good	0.334 \| good	10.837 \| good	0.299 \| good
2025-07-30T03:00:00.000Z	67 \| moderate	17.701 \| fine	78.831 \| fine	29.495 \| good	0.686 \| good	8.687 \| good	0.258 \| good
2025-07-30T04:00:00.000Z	56 \| moderate	11.95 \| good	21.132 \| good	41.06 \| good	0.319 \| good	22.565 \| good	0.461 \| good
2025-07-30T05:00:00.000Z	56 \| moderate	12.462 \| fine	22.259 \| good	37.636 \| good	0.435 \| good	21.673 \| good	0.378 \| good
2025-07-30T06:00:00.000Z	58 \| moderate	13.086 \| fine	22.572 \| good	28.528 \| good	0.37 \| good	14.9 \| good	0.292 \| good
2025-07-30T07:00:00.000Z	58 \| moderate	13.222 \| fine	22.348 \| good	25.03 \| good	0.205 \| good	16.086 \| good	0.289 \| good
2025-07-30T08:00:00.000Z	58 \| moderate	13.085 \| fine	22.935 \| good	19.594 \| good	0.218 \| good	15.3 \| good	0.29 \| good
2025-07-30T09:00:00.000Z	58 \| moderate	12.872 \| fine	21.356 \| good	21.01 \| good	0.192 \| good	12.807 \| good	0.204 \| good
2025-07-30T10:00:00.000Z	54 \| moderate	11.319 \| good	31.407 \| good	21.537 \| good	0.184 \| good	9.558 \| good	0.2 \| good
2025-07-30T01:00:00.000Z	64 \| moderate	16.306 \| fine	72.814 \| fine	33.772 \| good	0.464 \| good	5.535 \| good	0.209 \| good
2025-07-30T02:00:00.000Z	64 \| moderate	15.925 \| fine	71 \| fine	30.437 \| good	0.481 \| good	5.721 \| good	0.211 \| good
2025-07-30T03:00:00.000Z	66 \| moderate	17.2 \| fine	76.202 \| fine	28.68 \| good	0.498 \| good	5.906 \| good	0.212 \| good
2025-07-30T04:00:00.000Z	67 \| moderate	18.432 \| fine	81.417 \| fine	24.158 \| good	0.493 \| good	5.494 \| good	0.208 \| good
2025-07-30T05:00:00.000Z	71 \| moderate	19.86 \| fine	87.717 \| fine	21.483 \| good	0.488 \| good	5.082 \| good	0.203 \| good
2025-07-30T06:00:00.000Z	73 \| moderate	20.517 \| fine	89.869 \| fine	15.225 \| good	0.483 \| good	4.67 \| good	0.199 \| good
2025-07-30T07:00:00.000Z	71 \| moderate	19.853 \| fine	87.717 \| fine	12.405 \| good	0.487 \| good	4.678 \| good	0.201 \| good
2025-07-30T08:00:00.000Z	71 \| moderate	19.692 \| fine	87.174 \| fine	10.976 \| good	0.492 \| good	4.687 \| good	0.202 \| good
2025-07-30T09:00:00.000Z	73 \| moderate	20.926 \| fine	91.772 \| fine	12.213 \| good	0.496 \| good	4.695 \| good	0.204 \| good
2025-07-30T10:00:00.000Z	71 \| moderate	19.661 \| fine	86.997 \| fine	12.416 \| good	0.505 \| good	4.258 \| good	0.212 \| good
2025-07-30T11:00:00.000Z	77 \| moderate	23.383 \| fine	101.958 \| fine	17.147 \| good	0.514 \| good	3.82 \| good	0.22 \| good
2025-07-30T12:00:00.000Z	84 \| moderate	26.654 \| fine	116.525 \| fine	28.874 \| good	0.523 \| good	3.382 \| good	0.229 \| good
2025-07-30T13:00:00.000Z	77 \| moderate	22.764 \| fine	100.228 \| fine	37.008 \| good	0.51 \| good	2.691 \| good	0.216 \| good
2025-07-30T14:00:00.000Z	75 \| moderate	21.55 \| fine	94.403 \| fine	44.813 \| good	0.497 \| good	2.001 \| good	0.204 \| good
2025-07-30T15:00:00.000Z	77 \| moderate	22.8 \| fine	99.7 \| fine	44.457 \| good	0.484 \| good	1.31 \| good	0.191 \| good
2025-07-30T16:00:00.000Z	77 \| moderate	22.724 \| fine	99.826 \| fine	48.81 \| good	0.409 \| good	1.139 \| good	0.188 \| good
2025-07-30T17:00:00.000Z	77 \| moderate	22.7 \| fine	99.473 \| fine	51.147 \| good	0.333 \| good	0.968 \| good	0.185 \| good
2025-07-30T18:00:00.000Z	75 \| moderate	22.389 \| fine	98.256 \| fine	49.335 \| good	0.258 \| good	0.796 \| good	0.182 \| good
2025-07-30T19:00:00.000Z	75 \| moderate	22.107 \| fine	97.138 \| fine	49.153 \| good	0.249 \| good	0.896 \| good	0.18 \| good
2025-07-30T20:00:00.000Z	73 \| moderate	20.561 \| fine	89.87 \| fine	49.045 \| good	0.24 \| good	0.996 \| good	0.178 \| good
2025-07-30T21:00:00.000Z	71 \| moderate	19.585 \| fine	86.164 \| fine	50.532 \| good	0.231 \| good	1.097 \| good	0.176 \| good
2025-07-30T22:00:00.000Z	69 \| moderate	19.067 \| fine	84.282 \| fine	47.823 \| good	0.277 \| good	2.691 \| good	0.195 \| good
2025-07-30T23:00:00.000Z	73 \| moderate	20.818 \| fine	91.775 \| fine	51.62 \| good	0.322 \| good	4.284 \| good	0.213 \| good
2025-07-31T00:00:00.000Z	77 \| moderate	22.945 \| fine	100.727 \| fine	51.893 \| good	0.368 \| good	5.878 \| good	0.232 \| good
2025-07-31T01:00:00.000Z	71 \| moderate	19.517 \| fine	85.654 \| fine	45.719 \| good	0.437 \| good	6.719 \| good	0.242 \| good
2025-07-31T02:00:00.000Z	69 \| moderate	18.688 \| fine	82.82 \| fine	46.379 \| good	0.506 \| good	7.56 \| good	0.252 \| good
2025-07-31T03:00:00.000Z	67 \| moderate	17.626 \| fine	78.223 \| fine	43.825 \| good	0.576 \| good	8.401 \| good	0.262 \| good
2025-07-31T04:00:00.000Z	64 \| moderate	16.5 \| fine	73.059 \| fine	39.514 \| good	0.613 \| good	8.3 \| good	0.262 \| good
2025-07-31T05:00:00.000Z	66 \| moderate	16.798 \| fine	74.764 \| fine	33.679 \| good	0.651 \| good	8.199 \| good	0.262 \| good
2025-07-31T06:00:00.000Z	67 \| moderate	17.504 \| fine	77.514 \| fine	30.573 \| good	0.688 \| good	8.098 \| good	0.262 \| good
2025-07-31T07:00:00.000Z	66 \| moderate	17.333 \| fine	76.532 \| fine	27.374 \| good	0.67 \| good	6.388 \| good	0.237 \| good
2025-07-31T08:00:00.000Z	66 \| moderate	17.438 \| fine	77.13 \| fine	23.734 \| good	0.651 \| good	4.678 \| good	0.212 \| good
2025-07-31T09:00:00.000Z	69 \| moderate	19.074 \| fine	84.143 \| fine	27.372 \| good	0.633 \| good	2.968 \| good	0.187 \| good
2025-07-31T10:00:00.000Z	66 \| moderate	16.938 \| fine	75.455 \| fine	24.622 \| good	0.594 \| good	2.925 \| good	0.186 \| good
2025-07-31T11:00:00.000Z	67 \| moderate	18.322 \| fine	80.912 \| fine	25.14 \| good	0.555 \| good	2.882 \| good	0.185 \| good
2025-07-31T12:00:00.000Z	75 \| moderate	21.725 \| fine	95.272 \| fine	25.281 \| good	0.516 \| good	2.839 \| good	0.184 \| good
2025-07-31T13:00:00.000Z	71 \| moderate	20 \| fine	88.521 \| fine	26.662 \| good	0.514 \| good	2.655 \| good	0.181 \| good
2025-07-31T14:00:00.000Z	71 \| moderate	20.316 \| fine	89.15 \| fine	28.77 \| good	0.513 \| good	2.471 \| good	0.178 \| good
2025-07-31T15:00:00.000Z	73 \| moderate	21.069 \| fine	92.855 \| fine	31.37 \| good	0.512 \| good	2.287 \| good	0.175 \| good
2025-07-31T16:00:00.000Z	73 \| moderate	21.498 \| fine	94.264 \| fine	33.402 \| good	0.518 \| good	2.084 \| good	0.176 \| good
2025-07-31T17:00:00.000Z	75 \| moderate	21.724 \| fine	95.269 \| fine	31.662 \| good	0.523 \| good	1.882 \| good	0.176 \| good
2025-07-31T18:00:00.000Z	73 \| moderate	20.609 \| fine	91.209 \| fine	30.229 \| good	0.529 \| good	1.679 \| good	0.176 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	19.159 \| fine	84.366 \| fine	29.153 \| good	0.54 \| good	2.01 \| good	0.183 \| good
2025-07-31T20:00:00.000Z	67 \| moderate	17.846 \| fine	78.662 \| fine	30.633 \| good	0.55 \| good	2.342 \| good	0.19 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.293 \| fine	81.122 \| fine	32.221 \| good	0.56 \| good	2.673 \| good	0.197 \| good
2025-07-31T22:00:00.000Z	67 \| moderate	17.537 \| fine	77.476 \| fine	32.39 \| good	0.577 \| good	4.088 \| good	0.214 \| good
2025-07-31T23:00:00.000Z	66 \| moderate	17.286 \| fine	77.113 \| fine	28.923 \| good	0.593 \| good	5.503 \| good	0.23 \| good
2025-08-01T00:00:00.000Z	58 \| moderate	12.73 \| fine	13.403 \| good	45.596 \| good	0.609 \| good	6.908 \| good	0.246 \| good

Simsbury

Get reliable air quality data to drive your business

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

0.21ppm

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 Simsbury, Connecticut?

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

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

In the past 24 hours, the air quality in Simsbury, Connecticut was at its worst at 12:00:00 on 2025-07-29.

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

In the last 24 hours, the best air quality in Simsbury, Connecticut was observed at 11:00:00 on 2025-07-29.

What is the AQI in Simsbury, Connecticut right now?

As of now, the AQI in Simsbury, Connecticut is 49, indicating Good conditions.

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

Simsbury, Connecticut air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in Simsbury, Connecticut are currently 8.837 μg/m³.

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

The PM₁₀ concentration in Simsbury, Connecticut is 41.103 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Simsbury, Connecticut is 0.231 ppm.

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

Currently, Simsbury, Connecticut has a sulfur dioxide (SO₂) concentration of 0.365 ppb.

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

The current ozone (O₃) level in Simsbury, Connecticut at the moment is 42.902 ppm.

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

Nitrogen dioxide (NO₂) level in Simsbury, Connecticut at the moment is 2.928 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-28T11:00:00.000Z	84 \| moderate	26.713 \| fine	39.704 \| good	10.614 \| good	0.166 \| good	10.536 \| good	0.224 \| good
2025-07-28T12:00:00.000Z	77 \| moderate	22.642 \| fine	36.5 \| good	12.607 \| good	0.194 \| good	10.624 \| good	0.217 \| good
2025-07-28T13:00:00.000Z	69 \| moderate	18.819 \| fine	31.485 \| good	17.651 \| good	0.206 \| good	8.126 \| good	0.213 \| good
2025-07-28T14:00:00.000Z	69 \| moderate	18.541 \| fine	30.023 \| good	15.045 \| good	0.331 \| good	4.556 \| good	0.21 \| good
2025-07-28T15:00:00.000Z	62 \| moderate	15.016 \| fine	26.644 \| good	24.788 \| good	0.224 \| good	4.444 \| good	0.213 \| good
2025-07-28T16:00:00.000Z	60 \| moderate	13.702 \| fine	25.432 \| good	36.681 \| good	0.202 \| good	3.99 \| good	0.202 \| good
2025-07-28T17:00:00.000Z	58 \| moderate	13.498 \| fine	23.772 \| good	36.885 \| good	0.222 \| good	3.627 \| good	0.202 \| good
2025-07-28T18:00:00.000Z	58 \| moderate	13.336 \| fine	23.346 \| good	41.51 \| good	0.376 \| good	3.905 \| good	0.205 \| good
2025-07-28T19:00:00.000Z	58 \| moderate	12.817 \| fine	21.687 \| good	44.289 \| good	0.177 \| good	4.15 \| good	0.204 \| good
2025-07-28T20:00:00.000Z	58 \| moderate	12.599 \| fine	20.778 \| good	45.959 \| good	0.239 \| good	3.451 \| good	0.205 \| good
2025-07-28T21:00:00.000Z	58 \| moderate	12.65 \| fine	21.293 \| good	48.759 \| good	0.185 \| good	3.064 \| good	0.21 \| good
2025-07-28T22:00:00.000Z	58 \| moderate	12.573 \| fine	21.27 \| good	46.742 \| good	0.173 \| good	2.988 \| good	0.209 \| good
2025-07-28T23:00:00.000Z	58 \| moderate	12.781 \| fine	22.344 \| good	46.924 \| good	0.189 \| good	2.743 \| good	0.209 \| good
2025-07-29T00:00:00.000Z	58 \| moderate	12.963 \| fine	22.046 \| good	40.991 \| good	0.234 \| good	4.453 \| good	0.211 \| good
2025-07-29T01:00:00.000Z	58 \| moderate	12.967 \| fine	21.87 \| good	35.074 \| good	0.185 \| good	4.503 \| good	0.212 \| good
2025-07-29T02:00:00.000Z	60 \| moderate	13.727 \| fine	22.56 \| good	31.331 \| good	0.225 \| good	8.784 \| good	0.295 \| good
2025-07-29T03:00:00.000Z	60 \| moderate	14.495 \| fine	23.806 \| good	30.069 \| good	0.206 \| good	17.091 \| good	0.47 \| good
2025-07-29T04:00:00.000Z	60 \| moderate	14.102 \| fine	23.697 \| good	32.138 \| good	0.197 \| good	11.722 \| good	0.471 \| good
2025-07-29T05:00:00.000Z	60 \| moderate	14.066 \| fine	23.861 \| good	33.778 \| good	0.797 \| good	10.53 \| good	0.383 \| good
2025-07-29T06:00:00.000Z	60 \| moderate	14.113 \| fine	22.153 \| good	28.447 \| good	0.727 \| good	8.133 \| good	0.382 \| good
2025-07-29T07:00:00.000Z	60 \| moderate	14.097 \| fine	22.643 \| good	25.307 \| good	0.259 \| good	8.121 \| good	0.383 \| good
2025-07-29T08:00:00.000Z	60 \| moderate	14.459 \| fine	24.127 \| good	23.955 \| good	0.23 \| good	8.03 \| good	0.383 \| good
2025-07-29T09:00:00.000Z	62 \| moderate	14.584 \| fine	25.034 \| good	20.57 \| good	0.198 \| good	13.02 \| good	0.382 \| good
2025-07-29T10:00:00.000Z	62 \| moderate	14.657 \| fine	25.063 \| good	15.738 \| good	0.197 \| good	12.916 \| good	0.391 \| good
2025-07-29T11:00:00.000Z	62 \| moderate	14.887 \| fine	25.33 \| good	16.217 \| good	0.22 \| good	14.367 \| good	0.48 \| good
2025-07-29T12:00:00.000Z	62 \| moderate	15.264 \| fine	26.292 \| good	14.851 \| good	0.22 \| good	15.566 \| good	0.576 \| good
2025-07-29T13:00:00.000Z	62 \| moderate	15.225 \| fine	26.844 \| good	18.882 \| good	0.247 \| good	17.319 \| good	0.662 \| good
2025-07-29T14:00:00.000Z	64 \| moderate	15.839 \| fine	29.001 \| good	24.167 \| good	0.318 \| good	13.597 \| good	0.48 \| good
2025-07-29T15:00:00.000Z	64 \| moderate	16.059 \| fine	28.334 \| good	31.863 \| good	0.505 \| good	13.389 \| good	0.479 \| good
2025-07-29T16:00:00.000Z	64 \| moderate	15.77 \| fine	28.284 \| good	40.381 \| good	0.47 \| good	10.893 \| good	0.39 \| good
2025-07-29T17:00:00.000Z	62 \| moderate	15.121 \| fine	28.026 \| good	38.634 \| good	0.393 \| good	8.718 \| good	0.39 \| good
2025-07-29T18:00:00.000Z	60 \| moderate	14.295 \| fine	27.721 \| good	43.624 \| good	0.337 \| good	4.515 \| good	0.827 \| good
2025-07-29T19:00:00.000Z	58 \| moderate	13.433 \| fine	27.555 \| good	46.229 \| good	0.323 \| good	8.302 \| good	0.385 \| good
2025-07-29T20:00:00.000Z	56 \| moderate	12.465 \| fine	25.68 \| good	55.822 \| fine	0.385 \| good	7.605 \| good	0.298 \| good
2025-07-29T21:00:00.000Z	67 \| moderate	11.753 \| good	22.12 \| good	60.335 \| fine	0.413 \| good	4.193 \| good	0.21 \| good
2025-07-29T22:00:00.000Z	56 \| moderate	11.6 \| good	22.552 \| good	53.712 \| good	0.305 \| good	4.678 \| good	0.21 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	10.959 \| good	21.105 \| good	43.194 \| good	0.363 \| good	4.715 \| good	0.21 \| good
2025-07-30T00:00:00.000Z	54 \| moderate	10.947 \| good	19.56 \| good	42.312 \| good	0.36 \| good	5.552 \| good	0.212 \| good
2025-07-30T01:00:00.000Z	54 \| moderate	10.987 \| good	19.486 \| good	41.53 \| good	0.342 \| good	5.626 \| good	0.206 \| good
2025-07-30T02:00:00.000Z	54 \| moderate	11.288 \| good	19.953 \| good	37.807 \| good	0.334 \| good	10.837 \| good	0.299 \| good
2025-07-30T03:00:00.000Z	67 \| moderate	17.701 \| fine	78.831 \| fine	29.495 \| good	0.686 \| good	8.687 \| good	0.258 \| good
2025-07-30T04:00:00.000Z	56 \| moderate	11.95 \| good	21.132 \| good	41.06 \| good	0.319 \| good	22.565 \| good	0.461 \| good
2025-07-30T05:00:00.000Z	56 \| moderate	12.462 \| fine	22.259 \| good	37.636 \| good	0.435 \| good	21.673 \| good	0.378 \| good
2025-07-30T06:00:00.000Z	58 \| moderate	13.086 \| fine	22.572 \| good	28.528 \| good	0.37 \| good	14.9 \| good	0.292 \| good
2025-07-30T07:00:00.000Z	58 \| moderate	13.222 \| fine	22.348 \| good	25.03 \| good	0.205 \| good	16.086 \| good	0.289 \| good
2025-07-30T08:00:00.000Z	58 \| moderate	13.085 \| fine	22.935 \| good	19.594 \| good	0.218 \| good	15.3 \| good	0.29 \| good
2025-07-30T09:00:00.000Z	58 \| moderate	12.872 \| fine	21.356 \| good	21.01 \| good	0.192 \| good	12.807 \| good	0.204 \| good
2025-07-30T10:00:00.000Z	54 \| moderate	11.319 \| good	31.407 \| good	21.537 \| good	0.184 \| good	9.558 \| good	0.2 \| good
2025-07-30T01:00:00.000Z	64 \| moderate	16.306 \| fine	72.814 \| fine	33.772 \| good	0.464 \| good	5.535 \| good	0.209 \| good
2025-07-30T02:00:00.000Z	64 \| moderate	15.925 \| fine	71 \| fine	30.437 \| good	0.481 \| good	5.721 \| good	0.211 \| good
2025-07-30T03:00:00.000Z	66 \| moderate	17.2 \| fine	76.202 \| fine	28.68 \| good	0.498 \| good	5.906 \| good	0.212 \| good
2025-07-30T04:00:00.000Z	67 \| moderate	18.432 \| fine	81.417 \| fine	24.158 \| good	0.493 \| good	5.494 \| good	0.208 \| good
2025-07-30T05:00:00.000Z	71 \| moderate	19.86 \| fine	87.717 \| fine	21.483 \| good	0.488 \| good	5.082 \| good	0.203 \| good
2025-07-30T06:00:00.000Z	73 \| moderate	20.517 \| fine	89.869 \| fine	15.225 \| good	0.483 \| good	4.67 \| good	0.199 \| good
2025-07-30T07:00:00.000Z	71 \| moderate	19.853 \| fine	87.717 \| fine	12.405 \| good	0.487 \| good	4.678 \| good	0.201 \| good
2025-07-30T08:00:00.000Z	71 \| moderate	19.692 \| fine	87.174 \| fine	10.976 \| good	0.492 \| good	4.687 \| good	0.202 \| good
2025-07-30T09:00:00.000Z	73 \| moderate	20.926 \| fine	91.772 \| fine	12.213 \| good	0.496 \| good	4.695 \| good	0.204 \| good
2025-07-30T10:00:00.000Z	71 \| moderate	19.661 \| fine	86.997 \| fine	12.416 \| good	0.505 \| good	4.258 \| good	0.212 \| good
2025-07-30T11:00:00.000Z	77 \| moderate	23.383 \| fine	101.958 \| fine	17.147 \| good	0.514 \| good	3.82 \| good	0.22 \| good
2025-07-30T12:00:00.000Z	84 \| moderate	26.654 \| fine	116.525 \| fine	28.874 \| good	0.523 \| good	3.382 \| good	0.229 \| good
2025-07-30T13:00:00.000Z	77 \| moderate	22.764 \| fine	100.228 \| fine	37.008 \| good	0.51 \| good	2.691 \| good	0.216 \| good
2025-07-30T14:00:00.000Z	75 \| moderate	21.55 \| fine	94.403 \| fine	44.813 \| good	0.497 \| good	2.001 \| good	0.204 \| good
2025-07-30T15:00:00.000Z	77 \| moderate	22.8 \| fine	99.7 \| fine	44.457 \| good	0.484 \| good	1.31 \| good	0.191 \| good
2025-07-30T16:00:00.000Z	77 \| moderate	22.724 \| fine	99.826 \| fine	48.81 \| good	0.409 \| good	1.139 \| good	0.188 \| good
2025-07-30T17:00:00.000Z	77 \| moderate	22.7 \| fine	99.473 \| fine	51.147 \| good	0.333 \| good	0.968 \| good	0.185 \| good
2025-07-30T18:00:00.000Z	75 \| moderate	22.389 \| fine	98.256 \| fine	49.335 \| good	0.258 \| good	0.796 \| good	0.182 \| good
2025-07-30T19:00:00.000Z	75 \| moderate	22.107 \| fine	97.138 \| fine	49.153 \| good	0.249 \| good	0.896 \| good	0.18 \| good
2025-07-30T20:00:00.000Z	73 \| moderate	20.561 \| fine	89.87 \| fine	49.045 \| good	0.24 \| good	0.996 \| good	0.178 \| good
2025-07-30T21:00:00.000Z	71 \| moderate	19.585 \| fine	86.164 \| fine	50.532 \| good	0.231 \| good	1.097 \| good	0.176 \| good
2025-07-30T22:00:00.000Z	69 \| moderate	19.067 \| fine	84.282 \| fine	47.823 \| good	0.277 \| good	2.691 \| good	0.195 \| good
2025-07-30T23:00:00.000Z	73 \| moderate	20.818 \| fine	91.775 \| fine	51.62 \| good	0.322 \| good	4.284 \| good	0.213 \| good
2025-07-31T00:00:00.000Z	77 \| moderate	22.945 \| fine	100.727 \| fine	51.893 \| good	0.368 \| good	5.878 \| good	0.232 \| good
2025-07-31T01:00:00.000Z	71 \| moderate	19.517 \| fine	85.654 \| fine	45.719 \| good	0.437 \| good	6.719 \| good	0.242 \| good
2025-07-31T02:00:00.000Z	69 \| moderate	18.688 \| fine	82.82 \| fine	46.379 \| good	0.506 \| good	7.56 \| good	0.252 \| good
2025-07-31T03:00:00.000Z	67 \| moderate	17.626 \| fine	78.223 \| fine	43.825 \| good	0.576 \| good	8.401 \| good	0.262 \| good
2025-07-31T04:00:00.000Z	64 \| moderate	16.5 \| fine	73.059 \| fine	39.514 \| good	0.613 \| good	8.3 \| good	0.262 \| good
2025-07-31T05:00:00.000Z	66 \| moderate	16.798 \| fine	74.764 \| fine	33.679 \| good	0.651 \| good	8.199 \| good	0.262 \| good
2025-07-31T06:00:00.000Z	67 \| moderate	17.504 \| fine	77.514 \| fine	30.573 \| good	0.688 \| good	8.098 \| good	0.262 \| good
2025-07-31T07:00:00.000Z	66 \| moderate	17.333 \| fine	76.532 \| fine	27.374 \| good	0.67 \| good	6.388 \| good	0.237 \| good
2025-07-31T08:00:00.000Z	66 \| moderate	17.438 \| fine	77.13 \| fine	23.734 \| good	0.651 \| good	4.678 \| good	0.212 \| good
2025-07-31T09:00:00.000Z	69 \| moderate	19.074 \| fine	84.143 \| fine	27.372 \| good	0.633 \| good	2.968 \| good	0.187 \| good
2025-07-31T10:00:00.000Z	66 \| moderate	16.938 \| fine	75.455 \| fine	24.622 \| good	0.594 \| good	2.925 \| good	0.186 \| good
2025-07-31T11:00:00.000Z	67 \| moderate	18.322 \| fine	80.912 \| fine	25.14 \| good	0.555 \| good	2.882 \| good	0.185 \| good
2025-07-31T12:00:00.000Z	75 \| moderate	21.725 \| fine	95.272 \| fine	25.281 \| good	0.516 \| good	2.839 \| good	0.184 \| good
2025-07-31T13:00:00.000Z	71 \| moderate	20 \| fine	88.521 \| fine	26.662 \| good	0.514 \| good	2.655 \| good	0.181 \| good
2025-07-31T14:00:00.000Z	71 \| moderate	20.316 \| fine	89.15 \| fine	28.77 \| good	0.513 \| good	2.471 \| good	0.178 \| good
2025-07-31T15:00:00.000Z	73 \| moderate	21.069 \| fine	92.855 \| fine	31.37 \| good	0.512 \| good	2.287 \| good	0.175 \| good
2025-07-31T16:00:00.000Z	73 \| moderate	21.498 \| fine	94.264 \| fine	33.402 \| good	0.518 \| good	2.084 \| good	0.176 \| good
2025-07-31T17:00:00.000Z	75 \| moderate	21.724 \| fine	95.269 \| fine	31.662 \| good	0.523 \| good	1.882 \| good	0.176 \| good
2025-07-31T18:00:00.000Z	73 \| moderate	20.609 \| fine	91.209 \| fine	30.229 \| good	0.529 \| good	1.679 \| good	0.176 \| good
2025-07-31T19:00:00.000Z	69 \| moderate	19.159 \| fine	84.366 \| fine	29.153 \| good	0.54 \| good	2.01 \| good	0.183 \| good
2025-07-31T20:00:00.000Z	67 \| moderate	17.846 \| fine	78.662 \| fine	30.633 \| good	0.55 \| good	2.342 \| good	0.19 \| good
2025-07-31T21:00:00.000Z	67 \| moderate	18.293 \| fine	81.122 \| fine	32.221 \| good	0.56 \| good	2.673 \| good	0.197 \| good
2025-07-31T22:00:00.000Z	67 \| moderate	17.537 \| fine	77.476 \| fine	32.39 \| good	0.577 \| good	4.088 \| good	0.214 \| good
2025-07-31T23:00:00.000Z	66 \| moderate	17.286 \| fine	77.113 \| fine	28.923 \| good	0.593 \| good	5.503 \| good	0.23 \| good
2025-08-01T00:00:00.000Z	58 \| moderate	12.73 \| fine	13.403 \| good	45.596 \| good	0.609 \| good	6.908 \| good	0.246 \| good

Live air quality index in Simsbury, Connecticut today

Major air pollutants in Simsbury, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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

Air quality in nearby cities

Avon, Connecticut

Bloomfield, Connecticut

Canton, Connecticut

Granby, Connecticut

West Hartford, Connecticut

Windsor, Connecticut

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Frequently asked questions

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

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

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

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

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