What are the current PM10 levels at Killingly, Connecticut?

The current PM10 levels in Killingly, Connecticut are 4.571 μg/m3.

What are the current sulfur dioxide (SO2) levels at Killingly, Connecticut?

The current sulfur dioxide (SO2) levels in Killingly, Connecticut are 0.26 ppb.

What are the current ozone (O3) levels at Killingly, Connecticut?

The current ozone (O3) levels at Killingly, Connecticut is 28.3 ppm.

What are the current nitrogen dioxide (NO2) levels at Killingly, Connecticut?

The current nitrogen dioxide (NO2) levels at Killingly, Connecticut is 4.541 ppb.

Real-time air quality index in Killingly, Connecticut today

Q: What are the current PM2.5 levels in Killingly, Connecticut?

The measured PM2.5 levels in Killingly, Connecticut at present are 1.641 μg/m3.

Stay updated with real-time air quality in Killingly, 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

Killingly, Connecticut

Last updated: ... (Local time)

Common air pollutants in Killingly, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.07 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

6.02 μg/m³

155

255

425

605+

Ozone (O₃)

26.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.23 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.09 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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Killingly, Connecticut

Scroll To Air Quality Map

Track live Killingly, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-02-10T04:00:00.000Z	33 \| good	5.502 \| good	25.978 \| good	33.212 \| good	0.309 \| good	7.795 \| good	0.277 \| good
2026-02-10T05:00:00.000Z	32 \| good	5.335 \| good	29.055 \| good	35.162 \| good	0.326 \| good	16.217 \| good	0.282 \| good
2026-02-10T06:00:00.000Z	32 \| good	5.207 \| good	23.419 \| good	34.888 \| good	0.378 \| good	18.604 \| good	0.262 \| good
2026-02-10T07:00:00.000Z	31 \| good	5.422 \| good	21.801 \| good	34.33 \| good	0.378 \| good	18.462 \| good	0.237 \| good
2026-02-10T08:00:00.000Z	31 \| good	4.862 \| good	22.156 \| good	33.581 \| good	0.437 \| good	18.546 \| good	0.223 \| good
2026-02-10T09:00:00.000Z	49 \| good	9.317 \| good	42.59 \| good	32.712 \| good	0.522 \| good	23.959 \| good	0.298 \| good
2026-02-10T10:00:00.000Z	49 \| good	8.958 \| good	24.503 \| good	28.765 \| good	0.508 \| good	28.949 \| good	0.355 \| good
2026-02-10T11:00:00.000Z	71 \| moderate	17.603 \| fine	95.917 \| fine	29.613 \| good	0.541 \| good	30.908 \| good	0.414 \| good
2026-02-10T12:00:00.000Z	60 \| moderate	13.506 \| fine	17.167 \| good	33.886 \| good	0.444 \| good	29.741 \| good	0.667 \| good
2026-02-10T13:00:00.000Z	64 \| moderate	15.89 \| fine	33.427 \| good	31.861 \| good	0.469 \| good	31.513 \| good	0.733 \| good
2026-02-10T14:00:00.000Z	33 \| good	5.897 \| good	27.713 \| good	36.201 \| good	0.737 \| good	30.717 \| good	0.675 \| good
2026-02-10T15:00:00.000Z	49 \| good	8.855 \| good	38.733 \| good	32.476 \| good	0.839 \| good	15.691 \| good	0.45 \| good
2026-02-10T16:00:00.000Z	49 \| good	8.585 \| good	33.923 \| good	38.273 \| good	0.764 \| good	10.191 \| good	0.343 \| good
2026-02-10T17:00:00.000Z	44 \| good	7.813 \| good	42.73 \| good	39.092 \| good	0.671 \| good	9.349 \| good	0.358 \| good
2026-02-10T18:00:00.000Z	49 \| good	8.8 \| good	42.866 \| good	39.396 \| good	0.679 \| good	8.459 \| good	0.288 \| good
2026-02-10T19:00:00.000Z	44 \| good	8.173 \| good	36.091 \| good	39.247 \| good	0.311 \| good	7.954 \| good	0.265 \| good
2026-02-10T20:00:00.000Z	38 \| good	3.867 \| good	21.207 \| good	41.36 \| good	0.308 \| good	9.355 \| good	0.304 \| good
2026-02-10T21:00:00.000Z	35 \| good	4.167 \| good	17.68 \| good	38.227 \| good	0.334 \| good	9.467 \| good	0.292 \| good
2026-02-10T22:00:00.000Z	36 \| good	4.825 \| good	23.412 \| good	39.054 \| good	0.356 \| good	11.815 \| good	0.356 \| good
2026-02-10T23:00:00.000Z	44 \| good	7.918 \| good	27.083 \| good	38.939 \| good	8.214 \| good	8.829 \| good	1.124 \| good
2026-02-11T00:00:00.000Z	32 \| good	4.771 \| good	17.373 \| good	35.071 \| good	7.981 \| good	10.854 \| good	1.1 \| good
2026-02-11T01:00:00.000Z	33 \| good	5.707 \| good	33.816 \| good	34.66 \| good	8.19 \| good	14.224 \| good	1.098 \| good
2026-02-11T02:00:00.000Z	34 \| good	5.801 \| good	36.591 \| good	33.711 \| good	0.808 \| good	13.096 \| good	1.136 \| good
2026-02-11T03:00:00.000Z	34 \| good	6.22 \| good	22.855 \| good	36.661 \| good	0.81 \| good	12.598 \| good	1.134 \| good
2026-02-11T04:00:00.000Z	33 \| good	6.21 \| good	16.698 \| good	30.277 \| good	8.444 \| good	13.215 \| good	1.121 \| good
2026-02-11T05:00:00.000Z	38 \| good	7.122 \| good	16.456 \| good	28.983 \| good	11.852 \| good	15.281 \| good	0.884 \| good
2026-02-11T06:00:00.000Z	44 \| good	8.094 \| good	27.435 \| good	25.651 \| good	7.786 \| good	19.576 \| good	1.107 \| good
2026-02-11T07:00:00.000Z	49 \| good	9.279 \| good	39.635 \| good	27.985 \| good	7.878 \| good	20.951 \| good	1.107 \| good
2026-02-11T08:00:00.000Z	49 \| good	9.384 \| good	49.862 \| good	26.565 \| good	7.931 \| good	25.744 \| good	1.121 \| good
2026-02-11T09:00:00.000Z	52 \| moderate	10.278 \| good	39.78 \| good	23.868 \| good	7.963 \| good	22.022 \| good	1.158 \| good
2026-02-11T10:00:00.000Z	54 \| moderate	10.908 \| good	50.626 \| good	30.276 \| good	7.349 \| good	17.278 \| good	1.198 \| good
2026-02-11T11:00:00.000Z	58 \| moderate	12.684 \| fine	21.391 \| good	32.028 \| good	7.53 \| good	19.375 \| good	1.162 \| good
2026-02-11T12:00:00.000Z	64 \| moderate	16.275 \| fine	43.249 \| good	24.577 \| good	7.853 \| good	17.697 \| good	1.233 \| good
2026-02-11T13:00:00.000Z	62 \| moderate	14.88 \| fine	66.551 \| fine	26.489 \| good	8.023 \| good	21.89 \| good	1.34 \| good
2026-02-11T14:00:00.000Z	71 \| moderate	19.648 \| fine	54.628 \| good	30.851 \| good	7.793 \| good	21.821 \| good	1.255 \| good
2026-02-11T15:00:00.000Z	66 \| moderate	17.086 \| fine	36.641 \| good	27.375 \| good	7.214 \| good	11.883 \| good	1.211 \| good
2026-02-11T16:00:00.000Z	67 \| moderate	17.56 \| fine	50.061 \| good	28.254 \| good	7.303 \| good	5.072 \| good	1.093 \| good
2026-02-11T17:00:00.000Z	56 \| moderate	12.201 \| fine	35.547 \| good	31.199 \| good	7.351 \| good	3.985 \| good	1.093 \| good
2026-02-11T18:00:00.000Z	54 \| moderate	10.773 \| good	31.455 \| good	29.616 \| good	0.399 \| good	4.459 \| good	0.253 \| good
2026-02-11T19:00:00.000Z	38 \| good	7.466 \| good	20.779 \| good	31.616 \| good	0.41 \| good	4.175 \| good	0.225 \| good
2026-02-11T20:00:00.000Z	33 \| good	6.289 \| good	21.575 \| good	30.544 \| good	0.394 \| good	4.576 \| good	0.253 \| good
2026-02-11T21:00:00.000Z	33 \| good	5.641 \| good	14.326 \| good	30.285 \| good	0.395 \| good	3.681 \| good	0.225 \| good
2026-02-11T22:00:00.000Z	28 \| good	3.392 \| good	11.149 \| good	29.669 \| good	0.292 \| good	4.567 \| good	0.262 \| good
2026-02-11T23:00:00.000Z	27 \| good	3.465 \| good	15.707 \| good	29.499 \| good	0.276 \| good	6.01 \| good	0.274 \| good
2026-02-12T00:00:00.000Z	26 \| good	2.368 \| good	9.658 \| good	28.446 \| good	0.351 \| good	5.578 \| good	0.235 \| good
2026-02-12T01:00:00.000Z	26 \| good	1.782 \| good	5.807 \| good	28.278 \| good	0.351 \| good	4.681 \| good	0.223 \| good
2026-02-12T02:00:00.000Z	26 \| good	1.641 \| good	4.571 \| good	28.3 \| good	0.26 \| good	4.541 \| good	0.223 \| good
2026-02-12T03:00:00.000Z	24 \| good	2.072 \| good	6.017 \| good	26.001 \| good	0.233 \| good	4.087 \| good	0.223 \| good
2026-02-12T04:00:00.000Z	44 \| good	7.767 \| good	33.934 \| good	27.581 \| good	0.457 \| good	3.102 \| good	0.174 \| good
2026-02-12T05:00:00.000Z	52 \| moderate	9.876 \| good	44.092 \| good	27.47 \| good	0.49 \| good	2.449 \| good	0.172 \| good
2026-02-12T06:00:00.000Z	64 \| moderate	16.171 \| fine	71.387 \| fine	34.148 \| good	0.522 \| good	1.796 \| good	0.171 \| good
2026-02-12T07:00:00.000Z	54 \| moderate	11.251 \| good	50 \| good	39.357 \| good	0.468 \| good	1.59 \| good	0.166 \| good
2026-02-12T08:00:00.000Z	52 \| moderate	9.626 \| good	42.852 \| good	38.424 \| good	0.414 \| good	1.383 \| good	0.161 \| good
2026-02-12T09:00:00.000Z	49 \| good	8.811 \| good	38.737 \| good	37.409 \| good	0.36 \| good	1.177 \| good	0.156 \| good
2026-02-12T10:00:00.000Z	44 \| good	8.254 \| good	36.327 \| good	31.086 \| good	0.361 \| good	1.398 \| good	0.157 \| good
2026-02-12T11:00:00.000Z	54 \| moderate	11.006 \| good	48.519 \| good	31.527 \| good	0.363 \| good	1.619 \| good	0.157 \| good
2026-02-12T12:00:00.000Z	44 \| good	8.389 \| good	36.649 \| good	31.876 \| good	0.365 \| good	1.84 \| good	0.158 \| good
2026-02-12T13:00:00.000Z	44 \| good	8.391 \| good	36.723 \| good	33.356 \| good	0.375 \| good	1.658 \| good	0.159 \| good
2026-02-12T14:00:00.000Z	52 \| moderate	9.978 \| good	44.279 \| good	38.084 \| good	0.385 \| good	1.476 \| good	0.16 \| good
2026-02-12T15:00:00.000Z	38 \| good	6.638 \| good	29.755 \| good	39.692 \| good	0.395 \| good	1.294 \| good	0.16 \| good
2026-02-12T16:00:00.000Z	36 \| good	5.841 \| good	25.295 \| good	39.13 \| good	0.373 \| good	1.13 \| good	0.157 \| good
2026-02-12T17:00:00.000Z	35 \| good	4.834 \| good	20.934 \| good	38.482 \| good	0.352 \| good	0.966 \| good	0.154 \| good
2026-02-12T18:00:00.000Z	34 \| good	4.079 \| good	17.924 \| good	36.78 \| good	0.331 \| good	0.802 \| good	0.152 \| good
2026-02-12T19:00:00.000Z	35 \| good	2.303 \| good	9.717 \| good	38.161 \| good	0.338 \| good	0.997 \| good	0.151 \| good
2026-02-12T20:00:00.000Z	37 \| good	2.063 \| good	8.805 \| good	40.471 \| good	0.344 \| good	1.191 \| good	0.15 \| good
2026-02-12T21:00:00.000Z	37 \| good	0.539 \| good	2.354 \| good	40.442 \| good	0.351 \| good	1.386 \| good	0.149 \| good
2026-02-12T22:00:00.000Z	36 \| good	1.924 \| good	7.786 \| good	39.107 \| good	0.352 \| good	2.098 \| good	0.154 \| good
2026-02-12T23:00:00.000Z	36 \| good	4.931 \| good	21.552 \| good	39.167 \| good	0.353 \| good	2.81 \| good	0.16 \| good
2026-02-13T00:00:00.000Z	34 \| good	4.927 \| good	21.169 \| good	37.456 \| good	0.354 \| good	3.522 \| good	0.165 \| good
2026-02-13T01:00:00.000Z	34 \| good	4.924 \| good	21.142 \| good	36.937 \| good	0.354 \| good	3.272 \| good	0.164 \| good
2026-02-13T02:00:00.000Z	33 \| good	6.317 \| good	28.012 \| good	35.024 \| good	0.355 \| good	3.021 \| good	0.163 \| good
2026-02-13T03:00:00.000Z	33 \| good	6.094 \| good	26.994 \| good	35.24 \| good	0.355 \| good	2.771 \| good	0.162 \| good
2026-02-13T04:00:00.000Z	33 \| good	6.371 \| good	28.362 \| good	33.817 \| good	0.336 \| good	2.453 \| good	0.159 \| good
2026-02-13T05:00:00.000Z	33 \| good	6.057 \| good	26.737 \| good	34.714 \| good	0.317 \| good	2.134 \| good	0.156 \| good
2026-02-13T06:00:00.000Z	40 \| good	3.339 \| good	3.624 \| good	43.04 \| good	0.3 \| good	1.832 \| good	0.152 \| good
2026-02-13T07:00:00.000Z	32 \| good	2.725 \| good	11.057 \| good	34.645 \| good	0.288 \| good	1.708 \| good	0.151 \| good
2026-02-13T08:00:00.000Z	31 \| good	3.163 \| good	13.473 \| good	34.488 \| good	0.278 \| good	1.601 \| good	0.15 \| good
2026-02-13T09:00:00.000Z	31 \| good	3.593 \| good	15.624 \| good	33.532 \| good	0.267 \| good	1.493 \| good	0.149 \| good
2026-02-13T10:00:00.000Z	31 \| good	4.326 \| good	18.795 \| good	33.541 \| good	0.304 \| good	2.079 \| good	0.154 \| good
2026-02-13T11:00:00.000Z	31 \| good	5.166 \| good	22.564 \| good	33.082 \| good	0.34 \| good	2.664 \| good	0.159 \| good
2026-02-13T12:00:00.000Z	36 \| good	4.085 \| good	4.267 \| good	39.321 \| good	0.378 \| good	3.283 \| good	0.165 \| good
2026-02-13T13:00:00.000Z	37 \| good	4.758 \| good	4.994 \| good	39.767 \| good	0.425 \| good	3.108 \| good	0.166 \| good
2026-02-13T14:00:00.000Z	37 \| good	4.719 \| good	5.009 \| good	40.214 \| good	0.471 \| good	2.933 \| good	0.168 \| good
2026-02-13T15:00:00.000Z	38 \| good	3.674 \| good	3.973 \| good	40.661 \| good	0.518 \| good	2.757 \| good	0.17 \| good
2026-02-13T16:00:00.000Z	37 \| good	0.689 \| good	2.833 \| good	40.378 \| good	0.49 \| good	2.46 \| good	0.166 \| good
2026-02-13T17:00:00.000Z	38 \| good	1.397 \| good	5.824 \| good	41.017 \| good	0.465 \| good	2.187 \| good	0.162 \| good
2026-02-13T18:00:00.000Z	40 \| good	2.65 \| good	2.97 \| good	43.03 \| good	0.443 \| good	1.929 \| good	0.158 \| good
2026-02-13T19:00:00.000Z	40 \| good	2.628 \| good	2.933 \| good	42.762 \| good	0.436 \| good	2.289 \| good	0.16 \| good
2026-02-13T20:00:00.000Z	39 \| good	2.674 \| good	2.946 \| good	42.494 \| good	0.428 \| good	2.65 \| good	0.161 \| good
2026-02-13T21:00:00.000Z	39 \| good	3.06 \| good	3.299 \| good	42.227 \| good	0.421 \| good	3.011 \| good	0.163 \| good
2026-02-13T22:00:00.000Z	36 \| good	4.681 \| good	4.938 \| good	38.915 \| good	0.475 \| good	5.476 \| good	0.185 \| good
2026-02-13T23:00:00.000Z	33 \| good	6.433 \| good	6.733 \| good	35.603 \| good	0.528 \| good	7.941 \| good	0.206 \| good
2026-02-14T00:00:00.000Z	44 \| good	7.582 \| good	7.913 \| good	32.291 \| good	0.582 \| good	10.406 \| good	0.227 \| good
2026-02-14T01:00:00.000Z	38 \| good	6.713 \| good	29.728 \| good	35.695 \| good	0.731 \| good	11.26 \| good	0.239 \| good
2026-02-14T02:00:00.000Z	52 \| moderate	10.325 \| good	10.7 \| good	28.907 \| good	0.876 \| good	12.209 \| good	0.251 \| good
2026-02-14T03:00:00.000Z	56 \| moderate	12.295 \| fine	12.714 \| good	27.215 \| good	1.023 \| good	13.11 \| good	0.263 \| good

Killingly

Empower business decisions with accurate air quality data

Killingly, Connecticut air quality map: Real-time AQI near you

0.21ppm

How accurate is Connecticut, USA air quality data?

Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Killingly, Connecticut updated?

Air quality data for Killingly, Connecticut is updated on an hourly basis.

When did Killingly, Connecticut experience the worst air quality in the last 24 hours?

The worst air quality in Killingly, Connecticut was recorded at 02:00:00 on 2026-02-11.

When did Killingly, Connecticut have its best air quality in the last 24 hours?

The best air quality in Killingly, Connecticut was recorded at 02:00:00 on 2026-02-12.

What is the real-time air quality index for Killingly, Connecticut?

The real-time air quality index in Killingly, Connecticut is 26, currently categorized as Good.

Which pollutant is found most often in Killingly, Connecticut?

The most common pollutant in Killingly, Connecticut is O3.

What can I do if the air quality in Killingly, Connecticut is poor?

If the air quality in Killingly, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Killingly, Connecticut?

The measured PM_2.5 levels in Killingly, Connecticut at present are 1.641 μg/m³.

What are the current PM₁₀ levels at Killingly, Connecticut?

The current PM₁₀ levels in Killingly, Connecticut are 4.571 μg/m³.

What are the current carbon monoxide (CO) levels at Killingly, Connecticut?

The current carbon monoxide (CO) level in Killingly, Connecticut is 0.223 ppm.

What are the current sulfur dioxide (SO₂) levels at Killingly, Connecticut?

The current sulfur dioxide (SO₂) levels in Killingly, Connecticut are 0.26 ppb.

What are the current ozone (O₃) levels at Killingly, Connecticut?

The current ozone (O₃) levels at Killingly, Connecticut is 28.3 ppm.

What are the current nitrogen dioxide (NO₂) levels at Killingly, Connecticut?

The current nitrogen dioxide (NO₂) levels at Killingly, Connecticut is 4.541 ppb.

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