What are the current PM10 levels at Killingly, Connecticut?

The current PM10 levels in Killingly, Connecticut are 11.772 μg/m3.

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

The current sulfur dioxide (SO2) levels in Killingly, Connecticut are 0.228 ppb.

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

The current ozone (O3) levels at Killingly, Connecticut is 46.385 ppm.

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

The current nitrogen dioxide (NO2) levels at Killingly, Connecticut is 2.348 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 4.216 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)

4.22 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

11.77 μg/m³

155

255

425

605+

Ozone (O₃)

46.38 ppb

201

201+

Sulfur Dioxide (SO₂)

0.23 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.35 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2026-03-27T23:00:00.000Z	36 \| good	2.818 \| good	5.34 \| good	39.439 \| good	0.19 \| good	5.099 \| good	0.253 \| good
2026-03-28T00:00:00.000Z	40 \| good	2.355 \| good	12.804 \| good	42.719 \| good	0.163 \| good	8.105 \| good	0.301 \| good
2026-03-28T01:00:00.000Z	35 \| good	3.329 \| good	9.498 \| good	38.21 \| good	0.199 \| good	6.661 \| good	0.25 \| good
2026-03-28T02:00:00.000Z	39 \| good	3.446 \| good	8.535 \| good	41.578 \| good	0.18 \| good	6.762 \| good	0.225 \| good
2026-03-28T03:00:00.000Z	32 \| good	3.643 \| good	15.108 \| good	34.806 \| good	0.18 \| good	6.2 \| good	0.301 \| good
2026-03-28T04:00:00.000Z	35 \| good	5.012 \| good	22.081 \| good	37.763 \| good	0.18 \| good	8.484 \| good	0.226 \| good
2026-03-28T05:00:00.000Z	35 \| good	4.049 \| good	18.278 \| good	38.441 \| good	0.187 \| good	9.228 \| good	0.226 \| good
2026-03-28T06:00:00.000Z	36 \| good	4.219 \| good	9.96 \| good	38.66 \| good	0.266 \| good	11.053 \| good	0.251 \| good
2026-03-28T07:00:00.000Z	33 \| good	3.827 \| good	13.029 \| good	36.479 \| good	0.246 \| good	7.994 \| good	0.2 \| good
2026-03-28T08:00:00.000Z	35 \| good	3.582 \| good	11.198 \| good	38.401 \| good	0.163 \| good	5.378 \| good	0.2 \| good
2026-03-28T09:00:00.000Z	31 \| good	3.75 \| good	9.649 \| good	34.469 \| good	0.164 \| good	3.316 \| good	0.166 \| good
2026-03-28T10:00:00.000Z	36 \| good	2.66 \| good	10.98 \| good	38.502 \| good	0.182 \| good	3.746 \| good	0.185 \| good
2026-03-28T11:00:00.000Z	36 \| good	3.313 \| good	11.344 \| good	39.444 \| good	0.26 \| good	3.144 \| good	0.21 \| good
2026-03-28T12:00:00.000Z	35 \| good	3.803 \| good	12.162 \| good	38.06 \| good	0.247 \| good	2.689 \| good	0.251 \| good
2026-03-28T13:00:00.000Z	36 \| good	3.612 \| good	15.668 \| good	38.539 \| good	0.246 \| good	2.412 \| good	0.251 \| good
2026-03-28T14:00:00.000Z	37 \| good	3.495 \| good	18.824 \| good	40.133 \| good	0.279 \| good	1.801 \| good	0.21 \| good
2026-03-28T15:00:00.000Z	36 \| good	3.568 \| good	15.361 \| good	38.978 \| good	0.234 \| good	2.415 \| good	0.198 \| good
2026-03-28T16:00:00.000Z	36 \| good	3.17 \| good	11.868 \| good	39.236 \| good	0.284 \| good	1.465 \| good	0.198 \| good
2026-03-28T17:00:00.000Z	38 \| good	3.196 \| good	11.618 \| good	41.048 \| good	0.245 \| good	1.391 \| good	0.21 \| good
2026-03-28T18:00:00.000Z	37 \| good	4.255 \| good	21.082 \| good	40.256 \| good	0.274 \| good	1.794 \| good	0.225 \| good
2026-03-28T19:00:00.000Z	39 \| good	3.188 \| good	13.402 \| good	42.185 \| good	0.279 \| good	1.865 \| good	0.225 \| good
2026-03-28T20:00:00.000Z	39 \| good	2.833 \| good	11.68 \| good	41.941 \| good	0.247 \| good	2.627 \| good	0.225 \| good
2026-03-28T21:00:00.000Z	39 \| good	2.513 \| good	13.08 \| good	42.002 \| good	0.265 \| good	2.432 \| good	0.25 \| good
2026-03-28T22:00:00.000Z	39 \| good	3.72 \| good	15.014 \| good	41.615 \| good	0.284 \| good	1.821 \| good	0.21 \| good
2026-03-28T23:00:00.000Z	39 \| good	3.498 \| good	15.867 \| good	41.976 \| good	0.19 \| good	2.075 \| good	0.262 \| good
2026-03-29T00:00:00.000Z	39 \| good	3.517 \| good	15.374 \| good	41.695 \| good	0.342 \| good	2.8 \| good	0.262 \| good
2026-03-29T01:00:00.000Z	38 \| good	3.499 \| good	16.838 \| good	40.827 \| good	0.336 \| good	4.064 \| good	0.324 \| good
2026-03-29T02:00:00.000Z	37 \| good	4.364 \| good	13.01 \| good	40.133 \| good	0.385 \| good	3.733 \| good	0.287 \| good
2026-03-29T03:00:00.000Z	33 \| good	2.244 \| good	9 \| good	36.496 \| good	0.492 \| good	3.233 \| good	0.205 \| good
2026-03-29T04:00:00.000Z	37 \| good	4.085 \| good	15.936 \| good	39.723 \| good	0.305 \| good	2.818 \| good	0.237 \| good
2026-03-29T05:00:00.000Z	39 \| good	3.286 \| good	13.688 \| good	41.977 \| good	0.346 \| good	4.075 \| good	0.237 \| good
2026-03-29T06:00:00.000Z	36 \| good	2.95 \| good	9.117 \| good	38.714 \| good	0.347 \| good	3.979 \| good	0.237 \| good
2026-03-29T07:00:00.000Z	33 \| good	3.022 \| good	7.784 \| good	36.468 \| good	0.347 \| good	6.656 \| good	0.24 \| good
2026-03-29T08:00:00.000Z	35 \| good	3.215 \| good	13.395 \| good	38.265 \| good	0.346 \| good	11.325 \| good	0.266 \| good
2026-03-29T09:00:00.000Z	34 \| good	2.958 \| good	7.239 \| good	37.04 \| good	0.346 \| good	12.064 \| good	0.266 \| good
2026-03-29T10:00:00.000Z	33 \| good	3.821 \| good	10.986 \| good	36.055 \| good	0.314 \| good	13.995 \| good	0.274 \| good
2026-03-29T11:00:00.000Z	30 \| good	4.456 \| good	12.114 \| good	32.11 \| good	0.314 \| good	15.98 \| good	0.324 \| good
2026-03-29T12:00:00.000Z	30 \| good	4.289 \| good	12.52 \| good	31.944 \| good	0.24 \| good	12.214 \| good	0.375 \| good
2026-03-29T13:00:00.000Z	31 \| good	4.068 \| good	15.774 \| good	32.782 \| good	0.24 \| good	10.142 \| good	0.279 \| good
2026-03-29T14:00:00.000Z	35 \| good	3.714 \| good	17.198 \| good	37.604 \| good	0.285 \| good	3.929 \| good	0.264 \| good
2026-03-29T15:00:00.000Z	34 \| good	4.339 \| good	13.8 \| good	37.41 \| good	0.3 \| good	2.668 \| good	0.24 \| good
2026-03-29T16:00:00.000Z	37 \| good	4.656 \| good	13.319 \| good	40.141 \| good	0.232 \| good	2.609 \| good	0.225 \| good
2026-03-29T17:00:00.000Z	40 \| good	4.077 \| good	16.163 \| good	42.884 \| good	0.234 \| good	2.184 \| good	0.24 \| good
2026-03-29T18:00:00.000Z	39 \| good	4.078 \| good	12.462 \| good	41.754 \| good	0.147 \| good	2.808 \| good	0.24 \| good
2026-03-29T19:00:00.000Z	40 \| good	3.939 \| good	14.016 \| good	43.118 \| good	0.145 \| good	2.295 \| good	0.24 \| good
2026-03-29T20:00:00.000Z	42 \| good	4.172 \| good	14.986 \| good	44.991 \| good	0.248 \| good	2.362 \| good	0.24 \| good
2026-03-29T21:00:00.000Z	43 \| good	4.216 \| good	11.772 \| good	46.385 \| good	0.228 \| good	2.348 \| good	0.24 \| good
2026-03-29T22:00:00.000Z	43 \| good	4.216 \| good	11.772 \| good	46.385 \| good	0.228 \| good	2.348 \| good	0.24 \| good
2026-03-29T23:00:00.000Z	42 \| good	3.942 \| good	17.107 \| good	45.363 \| good	1.302 \| good	5.194 \| good	0.183 \| good
2026-03-30T00:00:00.000Z	41 \| good	4.964 \| good	21.681 \| good	43.769 \| good	1.316 \| good	5.818 \| good	0.191 \| good
2026-03-30T01:00:00.000Z	39 \| good	5.477 \| good	23.233 \| good	41.764 \| good	1.274 \| good	5.063 \| good	0.188 \| good
2026-03-30T02:00:00.000Z	37 \| good	4.546 \| good	19.885 \| good	40.066 \| good	1.232 \| good	4.308 \| good	0.186 \| good
2026-03-30T03:00:00.000Z	36 \| good	5.078 \| good	22.097 \| good	38.548 \| good	1.189 \| good	3.552 \| good	0.183 \| good
2026-03-30T04:00:00.000Z	36 \| good	4.951 \| good	21.226 \| good	38.678 \| good	1.055 \| good	3.172 \| good	0.174 \| good
2026-03-30T05:00:00.000Z	34 \| good	4.555 \| good	19.979 \| good	37.483 \| good	0.92 \| good	2.792 \| good	0.165 \| good
2026-03-30T06:00:00.000Z	33 \| good	4.697 \| good	20.263 \| good	35.592 \| good	0.785 \| good	2.413 \| good	0.156 \| good
2026-03-30T07:00:00.000Z	37 \| good	3.595 \| good	15.857 \| good	39.602 \| good	0.733 \| good	2.139 \| good	0.154 \| good
2026-03-30T08:00:00.000Z	35 \| good	3.524 \| good	15.871 \| good	37.873 \| good	0.68 \| good	1.865 \| good	0.152 \| good
2026-03-30T09:00:00.000Z	33 \| good	3.488 \| good	15.217 \| good	35.82 \| good	0.627 \| good	1.591 \| good	0.15 \| good
2026-03-30T10:00:00.000Z	33 \| good	1.408 \| good	5.834 \| good	36.208 \| good	0.726 \| good	2.164 \| good	0.159 \| good
2026-03-30T11:00:00.000Z	33 \| good	1.504 \| good	6.023 \| good	36.423 \| good	0.824 \| good	2.738 \| good	0.169 \| good
2026-03-30T12:00:00.000Z	30 \| good	2.193 \| good	9.097 \| good	32.041 \| good	0.923 \| good	3.311 \| good	0.178 \| good
2026-03-30T13:00:00.000Z	31 \| good	3.394 \| good	14.949 \| good	33.446 \| good	1.139 \| good	3.768 \| good	0.188 \| good
2026-03-30T14:00:00.000Z	33 \| good	4.737 \| good	20.741 \| good	35.981 \| good	1.354 \| good	4.225 \| good	0.197 \| good
2026-03-30T15:00:00.000Z	28 \| good	4.458 \| good	19.193 \| good	30.191 \| good	1.57 \| good	4.682 \| good	0.207 \| good
2026-03-30T16:00:00.000Z	33 \| good	6.309 \| good	28.128 \| good	27.815 \| good	1.723 \| good	4.595 \| good	0.2 \| good
2026-03-30T17:00:00.000Z	38 \| good	7.146 \| good	31.779 \| good	31.055 \| good	1.877 \| good	4.508 \| good	0.192 \| good
2026-03-30T18:00:00.000Z	52 \| moderate	9.604 \| good	42.926 \| good	34.826 \| good	2.03 \| good	4.42 \| good	0.185 \| good
2026-03-30T19:00:00.000Z	52 \| moderate	9.985 \| good	44.755 \| good	35.814 \| good	1.97 \| good	4.629 \| good	0.182 \| good
2026-03-30T20:00:00.000Z	49 \| good	9.041 \| good	40.678 \| good	34.883 \| good	1.911 \| good	4.837 \| good	0.179 \| good
2026-03-30T21:00:00.000Z	44 \| good	8.13 \| good	35.774 \| good	32.336 \| good	1.851 \| good	5.046 \| good	0.176 \| good
2026-03-30T22:00:00.000Z	33 \| good	5.757 \| good	25.137 \| good	33.786 \| good	1.855 \| good	5.765 \| good	0.18 \| good
2026-03-30T23:00:00.000Z	49 \| good	8.57 \| good	37.742 \| good	26.369 \| good	1.859 \| good	6.484 \| good	0.185 \| good
2026-03-31T00:00:00.000Z	49 \| good	9.078 \| good	40.735 \| good	23.553 \| good	1.862 \| good	7.203 \| good	0.189 \| good
2026-03-31T01:00:00.000Z	49 \| good	9.345 \| good	41.747 \| good	26.57 \| good	2.015 \| good	7.374 \| good	0.192 \| good
2026-03-31T02:00:00.000Z	60 \| moderate	13.769 \| fine	62.19 \| fine	25.988 \| good	2.168 \| good	7.544 \| good	0.195 \| good
2026-03-31T03:00:00.000Z	58 \| moderate	12.904 \| fine	57.61 \| fine	28.05 \| good	2.321 \| good	7.714 \| good	0.199 \| good
2026-03-31T04:00:00.000Z	54 \| moderate	10.683 \| good	47.309 \| good	33.819 \| good	2.267 \| good	7.23 \| good	0.197 \| good
2026-03-31T05:00:00.000Z	44 \| good	8.421 \| good	37.074 \| good	36.731 \| good	2.214 \| good	6.745 \| good	0.195 \| good
2026-03-31T06:00:00.000Z	58 \| moderate	13.444 \| fine	13.861 \| good	38.989 \| good	2.161 \| good	6.269 \| good	0.193 \| good
2026-03-31T07:00:00.000Z	56 \| moderate	11.654 \| good	51.645 \| good	28.909 \| good	2.033 \| good	5.87 \| good	0.187 \| good
2026-03-31T08:00:00.000Z	56 \| moderate	11.866 \| good	53.319 \| good	28.596 \| good	1.906 \| good	5.48 \| good	0.182 \| good
2026-03-31T09:00:00.000Z	56 \| moderate	12.017 \| good	53.738 \| good	22.496 \| good	1.78 \| good	5.089 \| good	0.176 \| good
2026-03-31T10:00:00.000Z	33 \| good	5.652 \| good	24.356 \| good	33.72 \| good	1.638 \| good	5.617 \| good	0.174 \| good
2026-03-31T11:00:00.000Z	30 \| good	4.926 \| good	21.226 \| good	32.176 \| good	1.497 \| good	6.145 \| good	0.172 \| good
2026-03-31T12:00:00.000Z	52 \| moderate	9.817 \| good	10.223 \| good	37.296 \| good	1.354 \| good	6.696 \| good	0.169 \| good
2026-03-31T13:00:00.000Z	52 \| moderate	9.761 \| good	10.146 \| good	37.326 \| good	1.387 \| good	6.358 \| good	0.171 \| good
2026-03-31T14:00:00.000Z	49 \| good	8.684 \| good	9.019 \| good	37.356 \| good	1.421 \| good	6.019 \| good	0.173 \| good
2026-03-31T15:00:00.000Z	44 \| good	7.871 \| good	8.281 \| good	37.386 \| good	1.454 \| good	5.681 \| good	0.175 \| good
2026-03-31T16:00:00.000Z	49 \| good	8.738 \| good	9.22 \| good	39.446 \| good	1.448 \| good	5.346 \| good	0.174 \| good
2026-03-31T17:00:00.000Z	44 \| good	7.551 \| good	33.062 \| good	36.616 \| good	1.441 \| good	4.995 \| good	0.172 \| good
2026-03-31T18:00:00.000Z	49 \| good	9.202 \| good	9.748 \| good	43.565 \| good	1.436 \| good	4.677 \| good	0.171 \| good
2026-03-31T19:00:00.000Z	49 \| good	9.278 \| good	9.919 \| good	43.803 \| good	1.405 \| good	5.047 \| good	0.173 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	9.667 \| good	10.333 \| good	44.042 \| good	1.374 \| good	5.417 \| good	0.175 \| good
2026-03-31T21:00:00.000Z	52 \| moderate	9.625 \| good	10.373 \| good	44.28 \| good	1.344 \| good	5.786 \| good	0.177 \| good
2026-03-31T22:00:00.000Z	49 \| good	9.327 \| good	10.186 \| good	43.365 \| good	1.276 \| good	6.4 \| good	0.18 \| good

Killingly

Empower business decisions with accurate air quality data

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

0.23ppm

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 09:00:00 on 2026-03-29.

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

The best air quality in Killingly, Connecticut was recorded at 12:00:00 on 2026-03-29.

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

The real-time air quality index in Killingly, Connecticut is 43, 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 4.216 μg/m³.

What are the current PM₁₀ levels at Killingly, Connecticut?

The current PM₁₀ levels in Killingly, Connecticut are 11.772 μg/m³.

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

The current carbon monoxide (CO) level in Killingly, Connecticut is 0.24 ppm.

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

The current sulfur dioxide (SO₂) levels in Killingly, Connecticut are 0.228 ppb.

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

The current ozone (O₃) levels at Killingly, Connecticut is 46.385 ppm.

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

The current nitrogen dioxide (NO₂) levels at Killingly, Connecticut is 2.348 ppb.

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