What are the current PM10 levels at Killingly, Connecticut?

The current PM10 levels in Killingly, Connecticut are 25.909 μg/m3.

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

The current sulfur dioxide (SO2) levels in Killingly, Connecticut are 0.404 ppb.

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

The current ozone (O3) levels at Killingly, Connecticut is 36.273 ppm.

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

The current nitrogen dioxide (NO2) levels at Killingly, Connecticut is 21.924 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 5.606 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)

5.61 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.91 μg/m³

155

255

425

605+

Ozone (O₃)

36.27 ppb

201

201+

Sulfur Dioxide (SO₂)

0.40 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

21.92 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.46 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Killingly, Connecticut

Get Live Pollen Counts

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
2025-12-27T00:00:00.000Z	30 \| good	3.731 \| good	32.017 \| good	31.34 \| good	0.388 \| good	13.504 \| good	0.262 \| good
2025-12-27T01:00:00.000Z	27 \| good	4.571 \| good	27.49 \| good	28.829 \| good	0.385 \| good	11.333 \| good	0.278 \| good
2025-12-27T02:00:00.000Z	28 \| good	4.158 \| good	20.622 \| good	29.89 \| good	0.314 \| good	9.826 \| good	0.237 \| good
2025-12-27T03:00:00.000Z	27 \| good	5.084 \| good	23.532 \| good	29.307 \| good	0.295 \| good	15.993 \| good	0.222 \| good
2025-12-27T04:00:00.000Z	28 \| good	4.289 \| good	16.705 \| good	29.877 \| good	0.297 \| good	13.53 \| good	0.237 \| good
2025-12-27T05:00:00.000Z	27 \| good	4.923 \| good	21.918 \| good	25.507 \| good	0.289 \| good	10.11 \| good	0.19 \| good
2025-12-27T06:00:00.000Z	27 \| good	4.737 \| good	20.063 \| good	26.047 \| good	0.273 \| good	8.359 \| good	0.212 \| good
2025-12-27T07:00:00.000Z	27 \| good	4.828 \| good	20.071 \| good	27.111 \| good	0.275 \| good	7.488 \| good	0.212 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.298 \| good	20.661 \| good	28.586 \| good	0.275 \| good	7.478 \| good	0.212 \| good
2025-12-27T09:00:00.000Z	33 \| good	5.589 \| good	22.519 \| good	27.572 \| good	0.327 \| good	6.744 \| good	0.185 \| good
2025-12-27T10:00:00.000Z	27 \| good	5.24 \| good	19.795 \| good	27.176 \| good	0.344 \| good	10.079 \| good	0.212 \| good
2025-12-27T11:00:00.000Z	27 \| good	4.674 \| good	10.782 \| good	26.02 \| good	0.301 \| good	10.734 \| good	0.185 \| good
2025-12-27T12:00:00.000Z	27 \| good	4.513 \| good	14.131 \| good	28.057 \| good	0.279 \| good	10.462 \| good	0.185 \| good
2025-12-27T13:00:00.000Z	25 \| good	4.143 \| good	11.662 \| good	26.98 \| good	0.344 \| good	9.741 \| good	0.183 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.748 \| good	14.243 \| good	29.972 \| good	0.337 \| good	9.226 \| good	0.275 \| good
2025-12-27T15:00:00.000Z	28 \| good	3.688 \| good	13.263 \| good	29.933 \| good	0.337 \| good	7.916 \| good	0.275 \| good
2025-12-27T16:00:00.000Z	29 \| good	3.611 \| good	8.052 \| good	31.153 \| good	0.309 \| good	7.435 \| good	0.262 \| good
2025-12-27T17:00:00.000Z	29 \| good	4.257 \| good	11.346 \| good	31.236 \| good	0.309 \| good	6.392 \| good	0.288 \| good
2025-12-27T18:00:00.000Z	28 \| good	4.278 \| good	9.5 \| good	30.304 \| good	0.339 \| good	4.849 \| good	0.247 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.365 \| good	10.661 \| good	31.985 \| good	0.327 \| good	5.182 \| good	0.247 \| good
2025-12-27T20:00:00.000Z	30 \| good	3.366 \| good	5.43 \| good	32.311 \| good	0.311 \| good	7.225 \| good	0.272 \| good
2025-12-27T21:00:00.000Z	32 \| good	3.523 \| good	4.661 \| good	34.87 \| good	0.311 \| good	9.023 \| good	0.336 \| good
2025-12-27T22:00:00.000Z	31 \| good	3.302 \| good	5.842 \| good	33.997 \| good	0.308 \| good	13.894 \| good	0.377 \| good
2025-12-27T23:00:00.000Z	31 \| good	4.434 \| good	5.669 \| good	33.475 \| good	0.364 \| good	22.345 \| good	0.424 \| good
2025-12-28T00:00:00.000Z	29 \| good	3.857 \| good	8.596 \| good	30.959 \| good	0.373 \| good	24.444 \| good	0.542 \| good
2025-12-28T01:00:00.000Z	29 \| good	4.86 \| good	12.836 \| good	31.411 \| good	0.473 \| good	16.311 \| good	0.671 \| good
2025-12-28T02:00:00.000Z	29 \| good	4.608 \| good	14.722 \| good	31.115 \| good	0.504 \| good	19.883 \| good	0.587 \| good
2025-12-28T03:00:00.000Z	38 \| good	7.077 \| good	31.403 \| good	25.414 \| good	0.836 \| good	12.385 \| good	0.246 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.72 \| good	21.18 \| good	29.371 \| good	0.552 \| good	16.394 \| good	0.525 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.556 \| good	35.524 \| good	27.112 \| good	0.444 \| good	20.995 \| good	0.503 \| good
2025-12-28T06:00:00.000Z	60 \| moderate	10.289 \| good	74.148 \| fine	25.332 \| good	0.49 \| good	24.963 \| good	0.469 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	10.64 \| good	43.181 \| good	24.569 \| good	0.468 \| good	22.08 \| good	0.425 \| good
2025-12-28T08:00:00.000Z	49 \| good	9.274 \| good	51.399 \| good	18.657 \| good	0.394 \| good	26.993 \| good	0.407 \| good
2025-12-28T09:00:00.000Z	52 \| moderate	9.817 \| good	37.411 \| good	22.815 \| good	0.59 \| good	11.502 \| good	0.486 \| good
2025-12-28T10:00:00.000Z	44 \| good	8.397 \| good	36.855 \| good	18.642 \| good	0.68 \| good	12.597 \| good	0.543 \| good
2025-12-28T11:00:00.000Z	44 \| good	8.414 \| good	37.119 \| good	17.085 \| good	0.557 \| good	20.889 \| good	0.563 \| good
2025-12-28T12:00:00.000Z	38 \| good	6.526 \| good	36.038 \| good	18.45 \| good	0.62 \| good	17.776 \| good	0.573 \| good
2025-12-28T13:00:00.000Z	33 \| good	5.607 \| good	12.519 \| good	22.856 \| good	0.618 \| good	19.25 \| good	0.484 \| good
2025-12-28T14:00:00.000Z	33 \| good	5.547 \| good	19.493 \| good	23.457 \| good	0.63 \| good	17.627 \| good	0.627 \| good
2025-12-28T15:00:00.000Z	31 \| good	4.938 \| good	25.447 \| good	34.365 \| good	0.476 \| good	13.31 \| good	0.45 \| good
2025-12-28T16:00:00.000Z	33 \| good	6.237 \| good	24.304 \| good	27.444 \| good	0.48 \| good	10.708 \| good	0.388 \| good
2025-12-28T17:00:00.000Z	54 \| moderate	11.343 \| good	38.734 \| good	31.123 \| good	0.436 \| good	9.559 \| good	0.311 \| good
2025-12-28T18:00:00.000Z	52 \| moderate	9.803 \| good	34.625 \| good	29.045 \| good	0.483 \| good	8.984 \| good	0.286 \| good
2025-12-28T19:00:00.000Z	49 \| good	8.962 \| good	26.641 \| good	32.342 \| good	0.424 \| good	8.839 \| good	0.315 \| good
2025-12-28T20:00:00.000Z	44 \| good	7.862 \| good	39.919 \| good	33.608 \| good	0.375 \| good	12.936 \| good	0.342 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.886 \| good	19.143 \| good	35.678 \| good	0.376 \| good	13.643 \| good	0.377 \| good
2025-12-28T22:00:00.000Z	33 \| good	5.606 \| good	25.909 \| good	36.273 \| good	0.404 \| good	21.924 \| good	0.458 \| good
2025-12-28T23:00:00.000Z	33 \| good	5.606 \| good	25.909 \| good	36.273 \| good	0.404 \| good	21.924 \| good	0.458 \| good
2025-12-27T08:00:00.000Z	33 \| good	5.885 \| good	25.496 \| good	20.973 \| good	0.732 \| good	7.133 \| good	0.175 \| good
2025-12-27T09:00:00.000Z	22 \| good	4.306 \| good	18.926 \| good	19.075 \| good	0.657 \| good	6.599 \| good	0.173 \| good
2025-12-27T10:00:00.000Z	18 \| good	2.582 \| good	10.652 \| good	18.864 \| good	0.609 \| good	6.351 \| good	0.173 \| good
2025-12-27T11:00:00.000Z	17 \| good	0.725 \| good	2.755 \| good	18.33 \| good	0.561 \| good	6.102 \| good	0.173 \| good
2025-12-27T12:00:00.000Z	21 \| good	0.845 \| good	3.051 \| good	23.021 \| good	0.513 \| good	5.854 \| good	0.173 \| good
2025-12-27T13:00:00.000Z	22 \| good	0.738 \| good	3 \| good	24.499 \| good	0.537 \| good	5.456 \| good	0.174 \| good
2025-12-27T14:00:00.000Z	26 \| good	0.703 \| good	2.843 \| good	28.002 \| good	0.56 \| good	5.058 \| good	0.174 \| good
2025-12-27T15:00:00.000Z	27 \| good	0.415 \| good	1.871 \| good	28.846 \| good	0.583 \| good	4.659 \| good	0.175 \| good
2025-12-27T16:00:00.000Z	27 \| good	1.081 \| good	4.217 \| good	28.869 \| good	0.575 \| good	4.276 \| good	0.169 \| good
2025-12-27T17:00:00.000Z	27 \| good	1.134 \| good	4.784 \| good	29.1 \| good	0.567 \| good	3.893 \| good	0.164 \| good
2025-12-27T18:00:00.000Z	27 \| good	1.222 \| good	4.972 \| good	28.936 \| good	0.56 \| good	3.51 \| good	0.158 \| good
2025-12-27T19:00:00.000Z	26 \| good	1.187 \| good	4.792 \| good	28.238 \| good	0.557 \| good	4.665 \| good	0.163 \| good
2025-12-27T20:00:00.000Z	25 \| good	1.261 \| good	4.977 \| good	27.346 \| good	0.555 \| good	5.821 \| good	0.169 \| good
2025-12-27T21:00:00.000Z	23 \| good	2.201 \| good	9.064 \| good	25.412 \| good	0.553 \| good	6.976 \| good	0.174 \| good
2025-12-27T22:00:00.000Z	21 \| good	3.002 \| good	12.461 \| good	23.189 \| good	0.72 \| good	11.489 \| good	0.216 \| good
2025-12-27T23:00:00.000Z	22 \| good	4.017 \| good	17.793 \| good	23.566 \| good	0.887 \| good	16.003 \| good	0.259 \| good
2025-12-28T00:00:00.000Z	22 \| good	4.441 \| good	19.167 \| good	23.385 \| good	1.054 \| good	20.516 \| good	0.301 \| good
2025-12-28T01:00:00.000Z	23 \| good	4.464 \| good	19.204 \| good	24.66 \| good	1.037 \| good	19.695 \| good	0.302 \| good
2025-12-28T02:00:00.000Z	27 \| good	5.193 \| good	22.766 \| good	26.441 \| good	1.02 \| good	18.873 \| good	0.302 \| good
2025-12-28T03:00:00.000Z	33 \| good	6.119 \| good	27.072 \| good	28.13 \| good	1.003 \| good	18.052 \| good	0.302 \| good
2025-12-28T04:00:00.000Z	38 \| good	6.85 \| good	30.099 \| good	27.381 \| good	0.9 \| good	16.319 \| good	0.288 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.81 \| good	38.767 \| good	24.598 \| good	0.797 \| good	14.585 \| good	0.273 \| good
2025-12-28T06:00:00.000Z	54 \| moderate	10.791 \| good	47.574 \| good	20.291 \| good	0.694 \| good	12.852 \| good	0.258 \| good
2025-12-28T07:00:00.000Z	56 \| moderate	11.822 \| good	52.896 \| good	17.542 \| good	0.694 \| good	12.324 \| good	0.254 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	11.204 \| good	49.461 \| good	17.24 \| good	0.695 \| good	11.797 \| good	0.25 \| good
2025-12-28T09:00:00.000Z	49 \| good	9.353 \| good	41.598 \| good	18.543 \| good	0.696 \| good	11.269 \| good	0.246 \| good
2025-12-28T10:00:00.000Z	44 \| good	7.677 \| good	33.598 \| good	19.704 \| good	0.743 \| good	13.111 \| good	0.265 \| good
2025-12-28T11:00:00.000Z	27 \| good	5.441 \| good	23.45 \| good	21.882 \| good	0.79 \| good	14.952 \| good	0.285 \| good
2025-12-28T12:00:00.000Z	22 \| good	4.057 \| good	17.667 \| good	22.372 \| good	0.838 \| good	16.794 \| good	0.304 \| good
2025-12-28T13:00:00.000Z	21 \| good	3.143 \| good	13.342 \| good	22.885 \| good	0.952 \| good	14.735 \| good	0.302 \| good
2025-12-28T14:00:00.000Z	23 \| good	1.954 \| good	7.849 \| good	25.208 \| good	1.067 \| good	12.676 \| good	0.3 \| good
2025-12-28T15:00:00.000Z	27 \| good	1.554 \| good	6.556 \| good	29.484 \| good	1.181 \| good	10.617 \| good	0.299 \| good
2025-12-28T16:00:00.000Z	30 \| good	1.957 \| good	7.763 \| good	31.609 \| good	1.177 \| good	9.347 \| good	0.268 \| good
2025-12-28T17:00:00.000Z	30 \| good	3.473 \| good	15.211 \| good	32.391 \| good	1.172 \| good	8.076 \| good	0.237 \| good
2025-12-28T18:00:00.000Z	30 \| good	4.427 \| good	19.339 \| good	31.742 \| good	1.168 \| good	6.806 \| good	0.206 \| good
2025-12-28T19:00:00.000Z	29 \| good	5.055 \| good	21.661 \| good	30.846 \| good	1.127 \| good	9.286 \| good	0.223 \| good
2025-12-28T20:00:00.000Z	33 \| good	5.794 \| good	25.936 \| good	30.8 \| good	1.087 \| good	11.766 \| good	0.24 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.968 \| good	30.695 \| good	27 \| good	1.047 \| good	14.246 \| good	0.257 \| good
2025-12-28T22:00:00.000Z	38 \| good	7.415 \| good	32.605 \| good	25.153 \| good	1.15 \| good	16.039 \| good	0.269 \| good
2025-12-28T23:00:00.000Z	49 \| good	9.014 \| good	40.363 \| good	25.105 \| good	1.253 \| good	17.831 \| good	0.281 \| good
2025-12-29T00:00:00.000Z	49 \| good	8.748 \| good	38.15 \| good	23.769 \| good	1.356 \| good	19.624 \| good	0.293 \| good
2025-12-29T01:00:00.000Z	49 \| good	9 \| good	40.241 \| good	21.001 \| good	1.638 \| good	21.219 \| good	0.282 \| good
2025-12-29T02:00:00.000Z	56 \| moderate	11.818 \| good	53.002 \| good	13.628 \| good	1.92 \| good	22.813 \| good	0.271 \| good
2025-12-29T03:00:00.000Z	64 \| moderate	15.961 \| fine	70.67 \| fine	9.769 \| good	2.203 \| good	24.407 \| good	0.26 \| good
2025-12-29T04:00:00.000Z	64 \| moderate	15.751 \| fine	70.54 \| fine	10.773 \| good	1.853 \| good	19.902 \| good	0.234 \| good
2025-12-29T05:00:00.000Z	60 \| moderate	14.499 \| fine	64.853 \| fine	14.282 \| good	1.504 \| good	15.397 \| good	0.209 \| good
2025-12-29T06:00:00.000Z	52 \| moderate	10.381 \| good	12.06 \| good	23.064 \| good	1.158 \| good	10.931 \| good	0.183 \| good
2025-12-29T07:00:00.000Z	38 \| good	6.723 \| good	30.043 \| good	22.792 \| good	0.88 \| good	7.801 \| good	0.168 \| good

Killingly

Empower business decisions with accurate air quality data

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

0.42ppm

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

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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 06:00:00 on 2025-12-28.

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 2025-12-28.

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

The real-time air quality index in Killingly, Connecticut is 33, 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 5.606 μg/m³.

What are the current PM₁₀ levels at Killingly, Connecticut?

The current PM₁₀ levels in Killingly, Connecticut are 25.909 μg/m³.

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

The current carbon monoxide (CO) level in Killingly, Connecticut is 0.458 ppm.

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

The current sulfur dioxide (SO₂) levels in Killingly, Connecticut are 0.404 ppb.

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

The current ozone (O₃) levels at Killingly, Connecticut is 36.273 ppm.

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

The current nitrogen dioxide (NO₂) levels at Killingly, Connecticut is 21.924 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	30 \| good	3.731 \| good	32.017 \| good	31.34 \| good	0.388 \| good	13.504 \| good	0.262 \| good
2025-12-27T01:00:00.000Z	27 \| good	4.571 \| good	27.49 \| good	28.829 \| good	0.385 \| good	11.333 \| good	0.278 \| good
2025-12-27T02:00:00.000Z	28 \| good	4.158 \| good	20.622 \| good	29.89 \| good	0.314 \| good	9.826 \| good	0.237 \| good
2025-12-27T03:00:00.000Z	27 \| good	5.084 \| good	23.532 \| good	29.307 \| good	0.295 \| good	15.993 \| good	0.222 \| good
2025-12-27T04:00:00.000Z	28 \| good	4.289 \| good	16.705 \| good	29.877 \| good	0.297 \| good	13.53 \| good	0.237 \| good
2025-12-27T05:00:00.000Z	27 \| good	4.923 \| good	21.918 \| good	25.507 \| good	0.289 \| good	10.11 \| good	0.19 \| good
2025-12-27T06:00:00.000Z	27 \| good	4.737 \| good	20.063 \| good	26.047 \| good	0.273 \| good	8.359 \| good	0.212 \| good
2025-12-27T07:00:00.000Z	27 \| good	4.828 \| good	20.071 \| good	27.111 \| good	0.275 \| good	7.488 \| good	0.212 \| good
2025-12-27T08:00:00.000Z	27 \| good	5.298 \| good	20.661 \| good	28.586 \| good	0.275 \| good	7.478 \| good	0.212 \| good
2025-12-27T09:00:00.000Z	33 \| good	5.589 \| good	22.519 \| good	27.572 \| good	0.327 \| good	6.744 \| good	0.185 \| good
2025-12-27T10:00:00.000Z	27 \| good	5.24 \| good	19.795 \| good	27.176 \| good	0.344 \| good	10.079 \| good	0.212 \| good
2025-12-27T11:00:00.000Z	27 \| good	4.674 \| good	10.782 \| good	26.02 \| good	0.301 \| good	10.734 \| good	0.185 \| good
2025-12-27T12:00:00.000Z	27 \| good	4.513 \| good	14.131 \| good	28.057 \| good	0.279 \| good	10.462 \| good	0.185 \| good
2025-12-27T13:00:00.000Z	25 \| good	4.143 \| good	11.662 \| good	26.98 \| good	0.344 \| good	9.741 \| good	0.183 \| good
2025-12-27T14:00:00.000Z	28 \| good	3.748 \| good	14.243 \| good	29.972 \| good	0.337 \| good	9.226 \| good	0.275 \| good
2025-12-27T15:00:00.000Z	28 \| good	3.688 \| good	13.263 \| good	29.933 \| good	0.337 \| good	7.916 \| good	0.275 \| good
2025-12-27T16:00:00.000Z	29 \| good	3.611 \| good	8.052 \| good	31.153 \| good	0.309 \| good	7.435 \| good	0.262 \| good
2025-12-27T17:00:00.000Z	29 \| good	4.257 \| good	11.346 \| good	31.236 \| good	0.309 \| good	6.392 \| good	0.288 \| good
2025-12-27T18:00:00.000Z	28 \| good	4.278 \| good	9.5 \| good	30.304 \| good	0.339 \| good	4.849 \| good	0.247 \| good
2025-12-27T19:00:00.000Z	30 \| good	3.365 \| good	10.661 \| good	31.985 \| good	0.327 \| good	5.182 \| good	0.247 \| good
2025-12-27T20:00:00.000Z	30 \| good	3.366 \| good	5.43 \| good	32.311 \| good	0.311 \| good	7.225 \| good	0.272 \| good
2025-12-27T21:00:00.000Z	32 \| good	3.523 \| good	4.661 \| good	34.87 \| good	0.311 \| good	9.023 \| good	0.336 \| good
2025-12-27T22:00:00.000Z	31 \| good	3.302 \| good	5.842 \| good	33.997 \| good	0.308 \| good	13.894 \| good	0.377 \| good
2025-12-27T23:00:00.000Z	31 \| good	4.434 \| good	5.669 \| good	33.475 \| good	0.364 \| good	22.345 \| good	0.424 \| good
2025-12-28T00:00:00.000Z	29 \| good	3.857 \| good	8.596 \| good	30.959 \| good	0.373 \| good	24.444 \| good	0.542 \| good
2025-12-28T01:00:00.000Z	29 \| good	4.86 \| good	12.836 \| good	31.411 \| good	0.473 \| good	16.311 \| good	0.671 \| good
2025-12-28T02:00:00.000Z	29 \| good	4.608 \| good	14.722 \| good	31.115 \| good	0.504 \| good	19.883 \| good	0.587 \| good
2025-12-28T03:00:00.000Z	38 \| good	7.077 \| good	31.403 \| good	25.414 \| good	0.836 \| good	12.385 \| good	0.246 \| good
2025-12-28T04:00:00.000Z	49 \| good	8.72 \| good	21.18 \| good	29.371 \| good	0.552 \| good	16.394 \| good	0.525 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.556 \| good	35.524 \| good	27.112 \| good	0.444 \| good	20.995 \| good	0.503 \| good
2025-12-28T06:00:00.000Z	60 \| moderate	10.289 \| good	74.148 \| fine	25.332 \| good	0.49 \| good	24.963 \| good	0.469 \| good
2025-12-28T07:00:00.000Z	54 \| moderate	10.64 \| good	43.181 \| good	24.569 \| good	0.468 \| good	22.08 \| good	0.425 \| good
2025-12-28T08:00:00.000Z	49 \| good	9.274 \| good	51.399 \| good	18.657 \| good	0.394 \| good	26.993 \| good	0.407 \| good
2025-12-28T09:00:00.000Z	52 \| moderate	9.817 \| good	37.411 \| good	22.815 \| good	0.59 \| good	11.502 \| good	0.486 \| good
2025-12-28T10:00:00.000Z	44 \| good	8.397 \| good	36.855 \| good	18.642 \| good	0.68 \| good	12.597 \| good	0.543 \| good
2025-12-28T11:00:00.000Z	44 \| good	8.414 \| good	37.119 \| good	17.085 \| good	0.557 \| good	20.889 \| good	0.563 \| good
2025-12-28T12:00:00.000Z	38 \| good	6.526 \| good	36.038 \| good	18.45 \| good	0.62 \| good	17.776 \| good	0.573 \| good
2025-12-28T13:00:00.000Z	33 \| good	5.607 \| good	12.519 \| good	22.856 \| good	0.618 \| good	19.25 \| good	0.484 \| good
2025-12-28T14:00:00.000Z	33 \| good	5.547 \| good	19.493 \| good	23.457 \| good	0.63 \| good	17.627 \| good	0.627 \| good
2025-12-28T15:00:00.000Z	31 \| good	4.938 \| good	25.447 \| good	34.365 \| good	0.476 \| good	13.31 \| good	0.45 \| good
2025-12-28T16:00:00.000Z	33 \| good	6.237 \| good	24.304 \| good	27.444 \| good	0.48 \| good	10.708 \| good	0.388 \| good
2025-12-28T17:00:00.000Z	54 \| moderate	11.343 \| good	38.734 \| good	31.123 \| good	0.436 \| good	9.559 \| good	0.311 \| good
2025-12-28T18:00:00.000Z	52 \| moderate	9.803 \| good	34.625 \| good	29.045 \| good	0.483 \| good	8.984 \| good	0.286 \| good
2025-12-28T19:00:00.000Z	49 \| good	8.962 \| good	26.641 \| good	32.342 \| good	0.424 \| good	8.839 \| good	0.315 \| good
2025-12-28T20:00:00.000Z	44 \| good	7.862 \| good	39.919 \| good	33.608 \| good	0.375 \| good	12.936 \| good	0.342 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.886 \| good	19.143 \| good	35.678 \| good	0.376 \| good	13.643 \| good	0.377 \| good
2025-12-28T22:00:00.000Z	33 \| good	5.606 \| good	25.909 \| good	36.273 \| good	0.404 \| good	21.924 \| good	0.458 \| good
2025-12-28T23:00:00.000Z	33 \| good	5.606 \| good	25.909 \| good	36.273 \| good	0.404 \| good	21.924 \| good	0.458 \| good
2025-12-27T08:00:00.000Z	33 \| good	5.885 \| good	25.496 \| good	20.973 \| good	0.732 \| good	7.133 \| good	0.175 \| good
2025-12-27T09:00:00.000Z	22 \| good	4.306 \| good	18.926 \| good	19.075 \| good	0.657 \| good	6.599 \| good	0.173 \| good
2025-12-27T10:00:00.000Z	18 \| good	2.582 \| good	10.652 \| good	18.864 \| good	0.609 \| good	6.351 \| good	0.173 \| good
2025-12-27T11:00:00.000Z	17 \| good	0.725 \| good	2.755 \| good	18.33 \| good	0.561 \| good	6.102 \| good	0.173 \| good
2025-12-27T12:00:00.000Z	21 \| good	0.845 \| good	3.051 \| good	23.021 \| good	0.513 \| good	5.854 \| good	0.173 \| good
2025-12-27T13:00:00.000Z	22 \| good	0.738 \| good	3 \| good	24.499 \| good	0.537 \| good	5.456 \| good	0.174 \| good
2025-12-27T14:00:00.000Z	26 \| good	0.703 \| good	2.843 \| good	28.002 \| good	0.56 \| good	5.058 \| good	0.174 \| good
2025-12-27T15:00:00.000Z	27 \| good	0.415 \| good	1.871 \| good	28.846 \| good	0.583 \| good	4.659 \| good	0.175 \| good
2025-12-27T16:00:00.000Z	27 \| good	1.081 \| good	4.217 \| good	28.869 \| good	0.575 \| good	4.276 \| good	0.169 \| good
2025-12-27T17:00:00.000Z	27 \| good	1.134 \| good	4.784 \| good	29.1 \| good	0.567 \| good	3.893 \| good	0.164 \| good
2025-12-27T18:00:00.000Z	27 \| good	1.222 \| good	4.972 \| good	28.936 \| good	0.56 \| good	3.51 \| good	0.158 \| good
2025-12-27T19:00:00.000Z	26 \| good	1.187 \| good	4.792 \| good	28.238 \| good	0.557 \| good	4.665 \| good	0.163 \| good
2025-12-27T20:00:00.000Z	25 \| good	1.261 \| good	4.977 \| good	27.346 \| good	0.555 \| good	5.821 \| good	0.169 \| good
2025-12-27T21:00:00.000Z	23 \| good	2.201 \| good	9.064 \| good	25.412 \| good	0.553 \| good	6.976 \| good	0.174 \| good
2025-12-27T22:00:00.000Z	21 \| good	3.002 \| good	12.461 \| good	23.189 \| good	0.72 \| good	11.489 \| good	0.216 \| good
2025-12-27T23:00:00.000Z	22 \| good	4.017 \| good	17.793 \| good	23.566 \| good	0.887 \| good	16.003 \| good	0.259 \| good
2025-12-28T00:00:00.000Z	22 \| good	4.441 \| good	19.167 \| good	23.385 \| good	1.054 \| good	20.516 \| good	0.301 \| good
2025-12-28T01:00:00.000Z	23 \| good	4.464 \| good	19.204 \| good	24.66 \| good	1.037 \| good	19.695 \| good	0.302 \| good
2025-12-28T02:00:00.000Z	27 \| good	5.193 \| good	22.766 \| good	26.441 \| good	1.02 \| good	18.873 \| good	0.302 \| good
2025-12-28T03:00:00.000Z	33 \| good	6.119 \| good	27.072 \| good	28.13 \| good	1.003 \| good	18.052 \| good	0.302 \| good
2025-12-28T04:00:00.000Z	38 \| good	6.85 \| good	30.099 \| good	27.381 \| good	0.9 \| good	16.319 \| good	0.288 \| good
2025-12-28T05:00:00.000Z	49 \| good	8.81 \| good	38.767 \| good	24.598 \| good	0.797 \| good	14.585 \| good	0.273 \| good
2025-12-28T06:00:00.000Z	54 \| moderate	10.791 \| good	47.574 \| good	20.291 \| good	0.694 \| good	12.852 \| good	0.258 \| good
2025-12-28T07:00:00.000Z	56 \| moderate	11.822 \| good	52.896 \| good	17.542 \| good	0.694 \| good	12.324 \| good	0.254 \| good
2025-12-28T08:00:00.000Z	54 \| moderate	11.204 \| good	49.461 \| good	17.24 \| good	0.695 \| good	11.797 \| good	0.25 \| good
2025-12-28T09:00:00.000Z	49 \| good	9.353 \| good	41.598 \| good	18.543 \| good	0.696 \| good	11.269 \| good	0.246 \| good
2025-12-28T10:00:00.000Z	44 \| good	7.677 \| good	33.598 \| good	19.704 \| good	0.743 \| good	13.111 \| good	0.265 \| good
2025-12-28T11:00:00.000Z	27 \| good	5.441 \| good	23.45 \| good	21.882 \| good	0.79 \| good	14.952 \| good	0.285 \| good
2025-12-28T12:00:00.000Z	22 \| good	4.057 \| good	17.667 \| good	22.372 \| good	0.838 \| good	16.794 \| good	0.304 \| good
2025-12-28T13:00:00.000Z	21 \| good	3.143 \| good	13.342 \| good	22.885 \| good	0.952 \| good	14.735 \| good	0.302 \| good
2025-12-28T14:00:00.000Z	23 \| good	1.954 \| good	7.849 \| good	25.208 \| good	1.067 \| good	12.676 \| good	0.3 \| good
2025-12-28T15:00:00.000Z	27 \| good	1.554 \| good	6.556 \| good	29.484 \| good	1.181 \| good	10.617 \| good	0.299 \| good
2025-12-28T16:00:00.000Z	30 \| good	1.957 \| good	7.763 \| good	31.609 \| good	1.177 \| good	9.347 \| good	0.268 \| good
2025-12-28T17:00:00.000Z	30 \| good	3.473 \| good	15.211 \| good	32.391 \| good	1.172 \| good	8.076 \| good	0.237 \| good
2025-12-28T18:00:00.000Z	30 \| good	4.427 \| good	19.339 \| good	31.742 \| good	1.168 \| good	6.806 \| good	0.206 \| good
2025-12-28T19:00:00.000Z	29 \| good	5.055 \| good	21.661 \| good	30.846 \| good	1.127 \| good	9.286 \| good	0.223 \| good
2025-12-28T20:00:00.000Z	33 \| good	5.794 \| good	25.936 \| good	30.8 \| good	1.087 \| good	11.766 \| good	0.24 \| good
2025-12-28T21:00:00.000Z	38 \| good	6.968 \| good	30.695 \| good	27 \| good	1.047 \| good	14.246 \| good	0.257 \| good
2025-12-28T22:00:00.000Z	38 \| good	7.415 \| good	32.605 \| good	25.153 \| good	1.15 \| good	16.039 \| good	0.269 \| good
2025-12-28T23:00:00.000Z	49 \| good	9.014 \| good	40.363 \| good	25.105 \| good	1.253 \| good	17.831 \| good	0.281 \| good
2025-12-29T00:00:00.000Z	49 \| good	8.748 \| good	38.15 \| good	23.769 \| good	1.356 \| good	19.624 \| good	0.293 \| good
2025-12-29T01:00:00.000Z	49 \| good	9 \| good	40.241 \| good	21.001 \| good	1.638 \| good	21.219 \| good	0.282 \| good
2025-12-29T02:00:00.000Z	56 \| moderate	11.818 \| good	53.002 \| good	13.628 \| good	1.92 \| good	22.813 \| good	0.271 \| good
2025-12-29T03:00:00.000Z	64 \| moderate	15.961 \| fine	70.67 \| fine	9.769 \| good	2.203 \| good	24.407 \| good	0.26 \| good
2025-12-29T04:00:00.000Z	64 \| moderate	15.751 \| fine	70.54 \| fine	10.773 \| good	1.853 \| good	19.902 \| good	0.234 \| good
2025-12-29T05:00:00.000Z	60 \| moderate	14.499 \| fine	64.853 \| fine	14.282 \| good	1.504 \| good	15.397 \| good	0.209 \| good
2025-12-29T06:00:00.000Z	52 \| moderate	10.381 \| good	12.06 \| good	23.064 \| good	1.158 \| good	10.931 \| good	0.183 \| good
2025-12-29T07:00:00.000Z	38 \| good	6.723 \| good	30.043 \| good	22.792 \| good	0.88 \| good	7.801 \| good	0.168 \| good

Real-time air quality index in Killingly, Connecticut today

Common air pollutants in Killingly, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Killingly, Connecticut air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Glocester, Rhode Island

Plainfield, Connecticut

Burrillville, Rhode Island

Scituate, Rhode Island

Dudley, Massachusetts

Webster, Massachusetts

How accurate is Connecticut, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Killingly, Connecticut?

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

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

What are the current PM10 levels at Killingly, Connecticut?

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

What are the current PM₁₀ levels at Killingly, Connecticut?

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

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

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