What is the current concentration of PM10 in Griswold, Connecticut?

The current PM10 concentration at Griswold, Connecticut is 30.616 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Griswold, Connecticut?

The current sulfur dioxide (SO2) concentration at Griswold, Connecticut is 0.193 ppb.

What is the current concentration of ozone (O3) in Griswold, Connecticut?

The current ozone (O3) concentration at Griswold, Connecticut is 38.589 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Griswold, Connecticut?

The current nitrogen dioxide (NO2) concentration at Griswold, Connecticut is 4.661 ppb.

Griswold, Connecticut live air quality index now

Q: What is the current concentration of PM2.5 in Griswold, Connecticut?

The current PM2.5 concentration at Griswold, Connecticut is 8.559 μg/m3.

Stay updated with real-time air quality in Griswold, 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

Griswold, Connecticut

Last updated: ... (Local time)

Major air pollutants in Griswold, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.70 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

46.19 μg/m³

155

255

425

605+

Ozone (O₃)

54.11 ppb

201

201+

Sulfur Dioxide (SO₂)

0.21 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.09 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Griswold, Connecticut

Get Live Pollen Counts

Griswold, Connecticut

Scroll To Air Quality Map

Track live Griswold, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T22:00:00.000Z	41 \| good	6.838 \| good	17.706 \| good	43.59 \| good	0.328 \| good	9.336 \| good	0.229 \| good
2026-06-27T23:00:00.000Z	40 \| good	5.429 \| good	13.616 \| good	43.412 \| good	0.259 \| good	5.109 \| good	0.221 \| good
2026-06-28T00:00:00.000Z	33 \| good	5.93 \| good	18.411 \| good	36.329 \| good	0.218 \| good	3.014 \| good	0.259 \| good
2026-06-28T01:00:00.000Z	44 \| good	8.113 \| good	37.887 \| good	37.981 \| good	0.235 \| good	5.155 \| good	0.241 \| good
2026-06-28T02:00:00.000Z	49 \| good	8.792 \| good	29.24 \| good	38.745 \| good	0.194 \| good	11.566 \| good	0.261 \| good
2026-06-28T03:00:00.000Z	56 \| moderate	12.085 \| good	54.448 \| good	38.468 \| good	0.369 \| good	9.794 \| good	0.249 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	11.623 \| good	23.783 \| good	31.244 \| good	0.194 \| good	8.63 \| good	0.3 \| good
2026-06-28T05:00:00.000Z	52 \| moderate	9.732 \| good	35.397 \| good	27.353 \| good	0.212 \| good	12.959 \| good	0.315 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.034 \| good	33.33 \| good	24.604 \| good	0.193 \| good	5.7 \| good	0.311 \| good
2026-06-28T07:00:00.000Z	56 \| moderate	11.927 \| good	16.004 \| good	20.732 \| good	0.358 \| good	3.259 \| good	0.284 \| good
2026-06-28T08:00:00.000Z	52 \| moderate	9.958 \| good	33.473 \| good	23.191 \| good	0.177 \| good	9.084 \| good	0.271 \| good
2026-06-28T09:00:00.000Z	56 \| moderate	11.729 \| good	47.834 \| good	22.58 \| good	0.331 \| good	6.456 \| good	0.256 \| good
2026-06-28T10:00:00.000Z	54 \| moderate	10.841 \| good	39.035 \| good	16.262 \| good	0.177 \| good	8.253 \| good	0.264 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	10.987 \| good	28.747 \| good	25.749 \| good	0.328 \| good	8.968 \| good	0.303 \| good
2026-06-28T12:00:00.000Z	54 \| moderate	11.222 \| good	50.366 \| good	22.457 \| good	0.49 \| good	2.667 \| good	0.239 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.146 \| good	40.762 \| good	27.454 \| good	0.46 \| good	3.949 \| good	0.212 \| good
2026-06-28T14:00:00.000Z	44 \| good	7.667 \| good	18.469 \| good	24.376 \| good	0.363 \| good	3.349 \| good	0.187 \| good
2026-06-28T15:00:00.000Z	44 \| good	7.575 \| good	17.943 \| good	28.578 \| good	0.196 \| good	3.055 \| good	0.178 \| good
2026-06-28T16:00:00.000Z	38 \| good	7.195 \| good	14.803 \| good	31.654 \| good	0.249 \| good	2.98 \| good	0.194 \| good
2026-06-28T17:00:00.000Z	38 \| good	6.562 \| good	21.399 \| good	34.963 \| good	0.155 \| good	2.342 \| good	0.203 \| good
2026-06-28T18:00:00.000Z	33 \| good	6.431 \| good	20.637 \| good	34.708 \| good	0.175 \| good	2.613 \| good	0.2 \| good
2026-06-28T19:00:00.000Z	43 \| good	5.597 \| good	15.185 \| good	46.103 \| good	0.215 \| good	2.453 \| good	0.217 \| good
2026-06-28T20:00:00.000Z	46 \| good	7.068 \| good	22.932 \| good	49.545 \| good	0.212 \| good	2.806 \| good	0.2 \| good
2026-06-28T21:00:00.000Z	42 \| good	6.823 \| good	26.491 \| good	45.385 \| good	0.253 \| good	3.659 \| good	0.213 \| good
2026-06-28T22:00:00.000Z	36 \| good	5.93 \| good	25.759 \| good	39.089 \| good	0.233 \| good	4.218 \| good	0.235 \| good
2026-06-28T23:00:00.000Z	38 \| good	7.252 \| good	19.93 \| good	37.729 \| good	0.236 \| good	3.39 \| good	0.213 \| good
2026-06-29T00:00:00.000Z	38 \| good	6.643 \| good	28.019 \| good	38.665 \| good	0.236 \| good	6 \| good	0.337 \| good
2026-06-29T01:00:00.000Z	34 \| good	5.874 \| good	22.665 \| good	37.208 \| good	0.214 \| good	4.744 \| good	0.252 \| good
2026-06-29T02:00:00.000Z	33 \| good	5.528 \| good	22.444 \| good	35.174 \| good	0.214 \| good	4.401 \| good	0.252 \| good
2026-06-29T03:00:00.000Z	44 \| good	7.802 \| good	34.303 \| good	27.679 \| good	0.218 \| good	3.662 \| good	0.194 \| good
2026-06-29T04:00:00.000Z	38 \| good	6.611 \| good	23.986 \| good	29.045 \| good	0.371 \| good	6.527 \| good	0.299 \| good
2026-06-29T05:00:00.000Z	38 \| good	6.675 \| good	19.402 \| good	37.507 \| good	0.291 \| good	9.047 \| good	0.235 \| good
2026-06-29T06:00:00.000Z	38 \| good	6.608 \| good	21.661 \| good	28.953 \| good	0.179 \| good	8.565 \| good	0.229 \| good
2026-06-29T07:00:00.000Z	38 \| good	6.785 \| good	23.644 \| good	28.117 \| good	0.321 \| good	8.387 \| good	0.217 \| good
2026-06-29T08:00:00.000Z	38 \| good	6.916 \| good	30.268 \| good	27.216 \| good	0.179 \| good	9.736 \| good	0.216 \| good
2026-06-29T09:00:00.000Z	38 \| good	7.057 \| good	28.106 \| good	22.888 \| good	0.179 \| good	9.171 \| good	0.255 \| good
2026-06-29T10:00:00.000Z	33 \| good	6.36 \| good	23.111 \| good	24.696 \| good	0.2 \| good	12.539 \| good	0.422 \| good
2026-06-29T11:00:00.000Z	33 \| good	6.201 \| good	24.138 \| good	22.98 \| good	0.178 \| good	10.707 \| good	0.422 \| good
2026-06-29T12:00:00.000Z	38 \| good	6.922 \| good	27.307 \| good	18.736 \| good	0.196 \| good	6.276 \| good	0.328 \| good
2026-06-29T13:00:00.000Z	33 \| good	6.01 \| good	25.662 \| good	16.812 \| good	0.335 \| good	4.745 \| good	0.31 \| good
2026-06-29T14:00:00.000Z	27 \| good	5.35 \| good	13.555 \| good	24.353 \| good	0.197 \| good	4.923 \| good	0.267 \| good
2026-06-29T15:00:00.000Z	33 \| good	5.704 \| good	25.871 \| good	29.295 \| good	0.198 \| good	7.137 \| good	0.267 \| good
2026-06-29T16:00:00.000Z	38 \| good	6.731 \| good	20.61 \| good	30.806 \| good	0.217 \| good	7.421 \| good	0.251 \| good
2026-06-29T17:00:00.000Z	38 \| good	7.359 \| good	21.176 \| good	34.667 \| good	0.214 \| good	4.007 \| good	0.172 \| good
2026-06-29T18:00:00.000Z	44 \| good	7.78 \| good	23.227 \| good	37.294 \| good	0.213 \| good	4.144 \| good	0.197 \| good
2026-06-29T19:00:00.000Z	49 \| good	8.559 \| good	30.616 \| good	38.589 \| good	0.193 \| good	4.661 \| good	0.185 \| good
2026-06-29T20:00:00.000Z	52 \| moderate	9.702 \| good	46.188 \| good	54.111 \| good	0.212 \| good	5.09 \| good	0.221 \| good
2026-06-29T21:00:00.000Z	54 \| moderate	10.441 \| good	39.636 \| good	56.363 \| fine	0.212 \| good	4.93 \| good	0.226 \| good
2026-06-29T21:00:00.000Z	52 \| moderate	9.702 \| good	46.188 \| good	54.111 \| good	0.212 \| good	5.09 \| good	0.221 \| good
2026-06-29T21:00:00.000Z	42 \| good	6.193 \| good	27.935 \| good	45.397 \| good	0.278 \| good	0.921 \| good	0.156 \| good
2026-06-29T22:00:00.000Z	44 \| good	7.601 \| good	33.987 \| good	43.195 \| good	0.256 \| good	1.479 \| good	0.17 \| good
2026-06-29T23:00:00.000Z	35 \| good	6.159 \| good	27.009 \| good	37.935 \| good	0.227 \| good	2.315 \| good	0.189 \| good
2026-06-30T00:00:00.000Z	49 \| good	8.674 \| good	37.984 \| good	34.752 \| good	0.211 \| good	3.115 \| good	0.199 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	9.598 \| good	42.98 \| good	28.996 \| good	0.216 \| good	3.015 \| good	0.196 \| good
2026-06-30T02:00:00.000Z	52 \| moderate	10.08 \| good	44.997 \| good	28.599 \| good	0.224 \| good	2.865 \| good	0.19 \| good
2026-06-30T03:00:00.000Z	52 \| moderate	10.12 \| good	44.999 \| good	25.745 \| good	0.234 \| good	2.68 \| good	0.182 \| good
2026-06-30T04:00:00.000Z	49 \| good	8.923 \| good	39.027 \| good	24.047 \| good	0.242 \| good	2.685 \| good	0.176 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.683 \| good	38.013 \| good	21.548 \| good	0.249 \| good	2.814 \| good	0.17 \| good
2026-06-30T06:00:00.000Z	49 \| good	8.966 \| good	39.03 \| good	20.588 \| good	0.263 \| good	2.934 \| good	0.164 \| good
2026-06-30T07:00:00.000Z	38 \| good	7.286 \| good	32.027 \| good	20.435 \| good	0.276 \| good	3.33 \| good	0.161 \| good
2026-06-30T08:00:00.000Z	38 \| good	6.532 \| good	29.003 \| good	20.324 \| good	0.293 \| good	3.606 \| good	0.158 \| good
2026-06-30T09:00:00.000Z	38 \| good	7.408 \| good	32.992 \| good	23.032 \| good	0.32 \| good	3.846 \| good	0.154 \| good
2026-06-30T10:00:00.000Z	38 \| good	7.125 \| good	31.991 \| good	20.277 \| good	0.34 \| good	4.304 \| good	0.154 \| good
2026-06-30T11:00:00.000Z	38 \| good	7.084 \| good	31.017 \| good	24.703 \| good	0.349 \| good	4.09 \| good	0.155 \| good
2026-06-30T12:00:00.000Z	38 \| good	7.082 \| good	31.02 \| good	31.584 \| good	0.406 \| good	3.705 \| good	0.159 \| good
2026-06-30T13:00:00.000Z	38 \| good	7.435 \| good	33 \| good	38.677 \| good	0.5 \| good	3.168 \| good	0.166 \| good
2026-06-30T14:00:00.000Z	44 \| good	7.663 \| good	34.001 \| good	41.414 \| good	0.551 \| good	2.456 \| good	0.174 \| good
2026-06-30T15:00:00.000Z	44 \| good	8.111 \| good	35.991 \| good	46.198 \| good	0.551 \| good	1.927 \| good	0.177 \| good
2026-06-30T16:00:00.000Z	46 \| good	7.343 \| good	32.013 \| good	49.817 \| good	0.545 \| good	1.565 \| good	0.175 \| good
2026-06-30T17:00:00.000Z	49 \| good	6.882 \| good	30.012 \| good	52.97 \| good	0.526 \| good	1.294 \| good	0.171 \| good
2026-06-30T18:00:00.000Z	64 \| moderate	7.53 \| good	33.02 \| good	59.295 \| fine	0.525 \| good	1.095 \| good	0.168 \| good
2026-06-30T19:00:00.000Z	58 \| moderate	7.329 \| good	32.04 \| good	57.019 \| fine	0.568 \| good	1.001 \| good	0.162 \| good
2026-06-30T20:00:00.000Z	44 \| good	6.093 \| good	27.007 \| good	47.372 \| good	0.544 \| good	0.936 \| good	0.151 \| good
2026-06-30T21:00:00.000Z	40 \| good	4.647 \| good	20.014 \| good	43.019 \| good	0.41 \| good	0.975 \| good	0.141 \| good
2026-06-30T22:00:00.000Z	36 \| good	4.242 \| good	18.986 \| good	39.142 \| good	0.25 \| good	1.181 \| good	0.135 \| good
2026-06-30T23:00:00.000Z	33 \| good	3.124 \| good	14 \| good	35.545 \| good	0.146 \| good	1.647 \| good	0.135 \| good
2026-07-01T00:00:00.000Z	30 \| good	5.377 \| good	23 \| good	31.739 \| good	0.105 \| good	2.078 \| good	0.135 \| good
2026-07-01T01:00:00.000Z	27 \| good	4.487 \| good	19.017 \| good	28.938 \| good	0.105 \| good	2.121 \| good	0.131 \| good
2026-07-01T02:00:00.000Z	25 \| good	4.222 \| good	18.987 \| good	27.225 \| good	0.123 \| good	2.117 \| good	0.129 \| good
2026-07-01T03:00:00.000Z	27 \| good	4.706 \| good	20.991 \| good	24.582 \| good	0.147 \| good	2.151 \| good	0.128 \| good
2026-07-01T04:00:00.000Z	22 \| good	4.347 \| good	19.008 \| good	24.161 \| good	0.171 \| good	2.28 \| good	0.128 \| good
2026-07-01T05:00:00.000Z	27 \| good	5.311 \| good	22.998 \| good	23.491 \| good	0.206 \| good	2.536 \| good	0.129 \| good
2026-07-01T06:00:00.000Z	27 \| good	5.007 \| good	21.987 \| good	22.905 \| good	0.258 \| good	2.848 \| good	0.129 \| good
2026-07-01T07:00:00.000Z	22 \| good	4.325 \| good	19.002 \| good	22.833 \| good	0.313 \| good	3.042 \| good	0.129 \| good
2026-07-01T08:00:00.000Z	27 \| good	5.3 \| good	23 \| good	21.243 \| good	0.36 \| good	3.12 \| good	0.129 \| good
2026-07-01T09:00:00.000Z	33 \| good	6.172 \| good	27.02 \| good	17.178 \| good	0.386 \| good	3.114 \| good	0.128 \| good
2026-07-01T10:00:00.000Z	33 \| good	6.485 \| good	28.995 \| good	16.998 \| good	0.386 \| good	3.079 \| good	0.128 \| good
2026-07-01T11:00:00.000Z	38 \| good	7.123 \| good	31.991 \| good	21.317 \| good	0.368 \| good	2.783 \| good	0.131 \| good
2026-07-01T12:00:00.000Z	44 \| good	7.643 \| good	34.005 \| good	31.098 \| good	0.381 \| good	2.3 \| good	0.136 \| good
2026-07-01T13:00:00.000Z	44 \| good	8.436 \| good	37.017 \| good	41.436 \| good	0.42 \| good	1.911 \| good	0.143 \| good
2026-07-01T14:00:00.000Z	54 \| moderate	10.947 \| good	48.016 \| good	50.913 \| good	0.448 \| good	1.517 \| good	0.151 \| good
2026-07-01T15:00:00.000Z	58 \| moderate	13.453 \| fine	60.981 \| fine	55.229 \| fine	0.462 \| good	1.241 \| good	0.158 \| good
2026-07-01T16:00:00.000Z	62 \| moderate	15.14 \| fine	67.028 \| fine	58.033 \| fine	0.47 \| good	1.052 \| good	0.162 \| good
2026-07-01T17:00:00.000Z	67 \| moderate	17.894 \| fine	79.018 \| fine	57.125 \| fine	0.475 \| good	0.923 \| good	0.165 \| good
2026-07-01T18:00:00.000Z	66 \| moderate	17.37 \| fine	77.002 \| fine	55.26 \| fine	0.473 \| good	0.875 \| good	0.166 \| good
2026-07-01T19:00:00.000Z	64 \| moderate	15.866 \| fine	70.986 \| fine	51.52 \| good	0.445 \| good	0.867 \| good	0.164 \| good
2026-07-01T20:00:00.000Z	64 \| moderate	16.486 \| fine	73.019 \| fine	56.777 \| fine	0.393 \| good	0.887 \| good	0.159 \| good

Griswold

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Griswold, Connecticut air quality map: Track AQI near you

0.19ppm

How accurate is Connecticut, USA air quality data?

Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Griswold, Connecticut updated?

The air quality for Griswold, Connecticut is updated every hour.

When was the worst air quality at Griswold, Connecticut in the last 24 hrs?

The worst air quality in Griswold, Connecticut in the last 24 hours was observed at 06:00:00 on 2026-06-29.

When was the best air quality at Griswold, Connecticut in the last 24 hrs?

In the last 24 hrs, the best air quality in Griswold, Connecticut was observed at 01:00:00 on 2026-06-29.

What is the current air quality in Griswold, Connecticut?

The current air quality in Griswold, Connecticut is 49, categorized as Good based on real-time data.

What pollutant is the most common in Griswold, Connecticut?

The most common pollutant in Griswold, Connecticut is PM2.5.

What should I do if the air quality in Griswold, Connecticut is poor?

If the air quality in Griswold, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Griswold, Connecticut?

The current PM_2.5 concentration at Griswold, Connecticut is 8.559 μg/m³.

What is the current concentration of PM₁₀ in Griswold, Connecticut?

The current PM₁₀ concentration at Griswold, Connecticut is 30.616 μg/m³.

What is the current concentration of carbon monoxide (CO) in Griswold, Connecticut?

The current carbon monoxide (CO) concentration at Griswold, Connecticut is 0.185 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Griswold, Connecticut?

The current sulfur dioxide (SO₂) concentration at Griswold, Connecticut is 0.193 ppb.

What is the current concentration of ozone (O₃) in Griswold, Connecticut?

The current ozone (O₃) concentration at Griswold, Connecticut is 38.589 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Griswold, Connecticut?

The current nitrogen dioxide (NO₂) concentration at Griswold, Connecticut is 4.661 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T22:00:00.000Z	41 \| good	6.838 \| good	17.706 \| good	43.59 \| good	0.328 \| good	9.336 \| good	0.229 \| good
2026-06-27T23:00:00.000Z	40 \| good	5.429 \| good	13.616 \| good	43.412 \| good	0.259 \| good	5.109 \| good	0.221 \| good
2026-06-28T00:00:00.000Z	33 \| good	5.93 \| good	18.411 \| good	36.329 \| good	0.218 \| good	3.014 \| good	0.259 \| good
2026-06-28T01:00:00.000Z	44 \| good	8.113 \| good	37.887 \| good	37.981 \| good	0.235 \| good	5.155 \| good	0.241 \| good
2026-06-28T02:00:00.000Z	49 \| good	8.792 \| good	29.24 \| good	38.745 \| good	0.194 \| good	11.566 \| good	0.261 \| good
2026-06-28T03:00:00.000Z	56 \| moderate	12.085 \| good	54.448 \| good	38.468 \| good	0.369 \| good	9.794 \| good	0.249 \| good
2026-06-28T04:00:00.000Z	56 \| moderate	11.623 \| good	23.783 \| good	31.244 \| good	0.194 \| good	8.63 \| good	0.3 \| good
2026-06-28T05:00:00.000Z	52 \| moderate	9.732 \| good	35.397 \| good	27.353 \| good	0.212 \| good	12.959 \| good	0.315 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.034 \| good	33.33 \| good	24.604 \| good	0.193 \| good	5.7 \| good	0.311 \| good
2026-06-28T07:00:00.000Z	56 \| moderate	11.927 \| good	16.004 \| good	20.732 \| good	0.358 \| good	3.259 \| good	0.284 \| good
2026-06-28T08:00:00.000Z	52 \| moderate	9.958 \| good	33.473 \| good	23.191 \| good	0.177 \| good	9.084 \| good	0.271 \| good
2026-06-28T09:00:00.000Z	56 \| moderate	11.729 \| good	47.834 \| good	22.58 \| good	0.331 \| good	6.456 \| good	0.256 \| good
2026-06-28T10:00:00.000Z	54 \| moderate	10.841 \| good	39.035 \| good	16.262 \| good	0.177 \| good	8.253 \| good	0.264 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	10.987 \| good	28.747 \| good	25.749 \| good	0.328 \| good	8.968 \| good	0.303 \| good
2026-06-28T12:00:00.000Z	54 \| moderate	11.222 \| good	50.366 \| good	22.457 \| good	0.49 \| good	2.667 \| good	0.239 \| good
2026-06-28T13:00:00.000Z	49 \| good	9.146 \| good	40.762 \| good	27.454 \| good	0.46 \| good	3.949 \| good	0.212 \| good
2026-06-28T14:00:00.000Z	44 \| good	7.667 \| good	18.469 \| good	24.376 \| good	0.363 \| good	3.349 \| good	0.187 \| good
2026-06-28T15:00:00.000Z	44 \| good	7.575 \| good	17.943 \| good	28.578 \| good	0.196 \| good	3.055 \| good	0.178 \| good
2026-06-28T16:00:00.000Z	38 \| good	7.195 \| good	14.803 \| good	31.654 \| good	0.249 \| good	2.98 \| good	0.194 \| good
2026-06-28T17:00:00.000Z	38 \| good	6.562 \| good	21.399 \| good	34.963 \| good	0.155 \| good	2.342 \| good	0.203 \| good
2026-06-28T18:00:00.000Z	33 \| good	6.431 \| good	20.637 \| good	34.708 \| good	0.175 \| good	2.613 \| good	0.2 \| good
2026-06-28T19:00:00.000Z	43 \| good	5.597 \| good	15.185 \| good	46.103 \| good	0.215 \| good	2.453 \| good	0.217 \| good
2026-06-28T20:00:00.000Z	46 \| good	7.068 \| good	22.932 \| good	49.545 \| good	0.212 \| good	2.806 \| good	0.2 \| good
2026-06-28T21:00:00.000Z	42 \| good	6.823 \| good	26.491 \| good	45.385 \| good	0.253 \| good	3.659 \| good	0.213 \| good
2026-06-28T22:00:00.000Z	36 \| good	5.93 \| good	25.759 \| good	39.089 \| good	0.233 \| good	4.218 \| good	0.235 \| good
2026-06-28T23:00:00.000Z	38 \| good	7.252 \| good	19.93 \| good	37.729 \| good	0.236 \| good	3.39 \| good	0.213 \| good
2026-06-29T00:00:00.000Z	38 \| good	6.643 \| good	28.019 \| good	38.665 \| good	0.236 \| good	6 \| good	0.337 \| good
2026-06-29T01:00:00.000Z	34 \| good	5.874 \| good	22.665 \| good	37.208 \| good	0.214 \| good	4.744 \| good	0.252 \| good
2026-06-29T02:00:00.000Z	33 \| good	5.528 \| good	22.444 \| good	35.174 \| good	0.214 \| good	4.401 \| good	0.252 \| good
2026-06-29T03:00:00.000Z	44 \| good	7.802 \| good	34.303 \| good	27.679 \| good	0.218 \| good	3.662 \| good	0.194 \| good
2026-06-29T04:00:00.000Z	38 \| good	6.611 \| good	23.986 \| good	29.045 \| good	0.371 \| good	6.527 \| good	0.299 \| good
2026-06-29T05:00:00.000Z	38 \| good	6.675 \| good	19.402 \| good	37.507 \| good	0.291 \| good	9.047 \| good	0.235 \| good
2026-06-29T06:00:00.000Z	38 \| good	6.608 \| good	21.661 \| good	28.953 \| good	0.179 \| good	8.565 \| good	0.229 \| good
2026-06-29T07:00:00.000Z	38 \| good	6.785 \| good	23.644 \| good	28.117 \| good	0.321 \| good	8.387 \| good	0.217 \| good
2026-06-29T08:00:00.000Z	38 \| good	6.916 \| good	30.268 \| good	27.216 \| good	0.179 \| good	9.736 \| good	0.216 \| good
2026-06-29T09:00:00.000Z	38 \| good	7.057 \| good	28.106 \| good	22.888 \| good	0.179 \| good	9.171 \| good	0.255 \| good
2026-06-29T10:00:00.000Z	33 \| good	6.36 \| good	23.111 \| good	24.696 \| good	0.2 \| good	12.539 \| good	0.422 \| good
2026-06-29T11:00:00.000Z	33 \| good	6.201 \| good	24.138 \| good	22.98 \| good	0.178 \| good	10.707 \| good	0.422 \| good
2026-06-29T12:00:00.000Z	38 \| good	6.922 \| good	27.307 \| good	18.736 \| good	0.196 \| good	6.276 \| good	0.328 \| good
2026-06-29T13:00:00.000Z	33 \| good	6.01 \| good	25.662 \| good	16.812 \| good	0.335 \| good	4.745 \| good	0.31 \| good
2026-06-29T14:00:00.000Z	27 \| good	5.35 \| good	13.555 \| good	24.353 \| good	0.197 \| good	4.923 \| good	0.267 \| good
2026-06-29T15:00:00.000Z	33 \| good	5.704 \| good	25.871 \| good	29.295 \| good	0.198 \| good	7.137 \| good	0.267 \| good
2026-06-29T16:00:00.000Z	38 \| good	6.731 \| good	20.61 \| good	30.806 \| good	0.217 \| good	7.421 \| good	0.251 \| good
2026-06-29T17:00:00.000Z	38 \| good	7.359 \| good	21.176 \| good	34.667 \| good	0.214 \| good	4.007 \| good	0.172 \| good
2026-06-29T18:00:00.000Z	44 \| good	7.78 \| good	23.227 \| good	37.294 \| good	0.213 \| good	4.144 \| good	0.197 \| good
2026-06-29T19:00:00.000Z	49 \| good	8.559 \| good	30.616 \| good	38.589 \| good	0.193 \| good	4.661 \| good	0.185 \| good
2026-06-29T20:00:00.000Z	52 \| moderate	9.702 \| good	46.188 \| good	54.111 \| good	0.212 \| good	5.09 \| good	0.221 \| good
2026-06-29T21:00:00.000Z	54 \| moderate	10.441 \| good	39.636 \| good	56.363 \| fine	0.212 \| good	4.93 \| good	0.226 \| good
2026-06-29T21:00:00.000Z	52 \| moderate	9.702 \| good	46.188 \| good	54.111 \| good	0.212 \| good	5.09 \| good	0.221 \| good
2026-06-29T21:00:00.000Z	42 \| good	6.193 \| good	27.935 \| good	45.397 \| good	0.278 \| good	0.921 \| good	0.156 \| good
2026-06-29T22:00:00.000Z	44 \| good	7.601 \| good	33.987 \| good	43.195 \| good	0.256 \| good	1.479 \| good	0.17 \| good
2026-06-29T23:00:00.000Z	35 \| good	6.159 \| good	27.009 \| good	37.935 \| good	0.227 \| good	2.315 \| good	0.189 \| good
2026-06-30T00:00:00.000Z	49 \| good	8.674 \| good	37.984 \| good	34.752 \| good	0.211 \| good	3.115 \| good	0.199 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	9.598 \| good	42.98 \| good	28.996 \| good	0.216 \| good	3.015 \| good	0.196 \| good
2026-06-30T02:00:00.000Z	52 \| moderate	10.08 \| good	44.997 \| good	28.599 \| good	0.224 \| good	2.865 \| good	0.19 \| good
2026-06-30T03:00:00.000Z	52 \| moderate	10.12 \| good	44.999 \| good	25.745 \| good	0.234 \| good	2.68 \| good	0.182 \| good
2026-06-30T04:00:00.000Z	49 \| good	8.923 \| good	39.027 \| good	24.047 \| good	0.242 \| good	2.685 \| good	0.176 \| good
2026-06-30T05:00:00.000Z	49 \| good	8.683 \| good	38.013 \| good	21.548 \| good	0.249 \| good	2.814 \| good	0.17 \| good
2026-06-30T06:00:00.000Z	49 \| good	8.966 \| good	39.03 \| good	20.588 \| good	0.263 \| good	2.934 \| good	0.164 \| good
2026-06-30T07:00:00.000Z	38 \| good	7.286 \| good	32.027 \| good	20.435 \| good	0.276 \| good	3.33 \| good	0.161 \| good
2026-06-30T08:00:00.000Z	38 \| good	6.532 \| good	29.003 \| good	20.324 \| good	0.293 \| good	3.606 \| good	0.158 \| good
2026-06-30T09:00:00.000Z	38 \| good	7.408 \| good	32.992 \| good	23.032 \| good	0.32 \| good	3.846 \| good	0.154 \| good
2026-06-30T10:00:00.000Z	38 \| good	7.125 \| good	31.991 \| good	20.277 \| good	0.34 \| good	4.304 \| good	0.154 \| good
2026-06-30T11:00:00.000Z	38 \| good	7.084 \| good	31.017 \| good	24.703 \| good	0.349 \| good	4.09 \| good	0.155 \| good
2026-06-30T12:00:00.000Z	38 \| good	7.082 \| good	31.02 \| good	31.584 \| good	0.406 \| good	3.705 \| good	0.159 \| good
2026-06-30T13:00:00.000Z	38 \| good	7.435 \| good	33 \| good	38.677 \| good	0.5 \| good	3.168 \| good	0.166 \| good
2026-06-30T14:00:00.000Z	44 \| good	7.663 \| good	34.001 \| good	41.414 \| good	0.551 \| good	2.456 \| good	0.174 \| good
2026-06-30T15:00:00.000Z	44 \| good	8.111 \| good	35.991 \| good	46.198 \| good	0.551 \| good	1.927 \| good	0.177 \| good
2026-06-30T16:00:00.000Z	46 \| good	7.343 \| good	32.013 \| good	49.817 \| good	0.545 \| good	1.565 \| good	0.175 \| good
2026-06-30T17:00:00.000Z	49 \| good	6.882 \| good	30.012 \| good	52.97 \| good	0.526 \| good	1.294 \| good	0.171 \| good
2026-06-30T18:00:00.000Z	64 \| moderate	7.53 \| good	33.02 \| good	59.295 \| fine	0.525 \| good	1.095 \| good	0.168 \| good
2026-06-30T19:00:00.000Z	58 \| moderate	7.329 \| good	32.04 \| good	57.019 \| fine	0.568 \| good	1.001 \| good	0.162 \| good
2026-06-30T20:00:00.000Z	44 \| good	6.093 \| good	27.007 \| good	47.372 \| good	0.544 \| good	0.936 \| good	0.151 \| good
2026-06-30T21:00:00.000Z	40 \| good	4.647 \| good	20.014 \| good	43.019 \| good	0.41 \| good	0.975 \| good	0.141 \| good
2026-06-30T22:00:00.000Z	36 \| good	4.242 \| good	18.986 \| good	39.142 \| good	0.25 \| good	1.181 \| good	0.135 \| good
2026-06-30T23:00:00.000Z	33 \| good	3.124 \| good	14 \| good	35.545 \| good	0.146 \| good	1.647 \| good	0.135 \| good
2026-07-01T00:00:00.000Z	30 \| good	5.377 \| good	23 \| good	31.739 \| good	0.105 \| good	2.078 \| good	0.135 \| good
2026-07-01T01:00:00.000Z	27 \| good	4.487 \| good	19.017 \| good	28.938 \| good	0.105 \| good	2.121 \| good	0.131 \| good
2026-07-01T02:00:00.000Z	25 \| good	4.222 \| good	18.987 \| good	27.225 \| good	0.123 \| good	2.117 \| good	0.129 \| good
2026-07-01T03:00:00.000Z	27 \| good	4.706 \| good	20.991 \| good	24.582 \| good	0.147 \| good	2.151 \| good	0.128 \| good
2026-07-01T04:00:00.000Z	22 \| good	4.347 \| good	19.008 \| good	24.161 \| good	0.171 \| good	2.28 \| good	0.128 \| good
2026-07-01T05:00:00.000Z	27 \| good	5.311 \| good	22.998 \| good	23.491 \| good	0.206 \| good	2.536 \| good	0.129 \| good
2026-07-01T06:00:00.000Z	27 \| good	5.007 \| good	21.987 \| good	22.905 \| good	0.258 \| good	2.848 \| good	0.129 \| good
2026-07-01T07:00:00.000Z	22 \| good	4.325 \| good	19.002 \| good	22.833 \| good	0.313 \| good	3.042 \| good	0.129 \| good
2026-07-01T08:00:00.000Z	27 \| good	5.3 \| good	23 \| good	21.243 \| good	0.36 \| good	3.12 \| good	0.129 \| good
2026-07-01T09:00:00.000Z	33 \| good	6.172 \| good	27.02 \| good	17.178 \| good	0.386 \| good	3.114 \| good	0.128 \| good
2026-07-01T10:00:00.000Z	33 \| good	6.485 \| good	28.995 \| good	16.998 \| good	0.386 \| good	3.079 \| good	0.128 \| good
2026-07-01T11:00:00.000Z	38 \| good	7.123 \| good	31.991 \| good	21.317 \| good	0.368 \| good	2.783 \| good	0.131 \| good
2026-07-01T12:00:00.000Z	44 \| good	7.643 \| good	34.005 \| good	31.098 \| good	0.381 \| good	2.3 \| good	0.136 \| good
2026-07-01T13:00:00.000Z	44 \| good	8.436 \| good	37.017 \| good	41.436 \| good	0.42 \| good	1.911 \| good	0.143 \| good
2026-07-01T14:00:00.000Z	54 \| moderate	10.947 \| good	48.016 \| good	50.913 \| good	0.448 \| good	1.517 \| good	0.151 \| good
2026-07-01T15:00:00.000Z	58 \| moderate	13.453 \| fine	60.981 \| fine	55.229 \| fine	0.462 \| good	1.241 \| good	0.158 \| good
2026-07-01T16:00:00.000Z	62 \| moderate	15.14 \| fine	67.028 \| fine	58.033 \| fine	0.47 \| good	1.052 \| good	0.162 \| good
2026-07-01T17:00:00.000Z	67 \| moderate	17.894 \| fine	79.018 \| fine	57.125 \| fine	0.475 \| good	0.923 \| good	0.165 \| good
2026-07-01T18:00:00.000Z	66 \| moderate	17.37 \| fine	77.002 \| fine	55.26 \| fine	0.473 \| good	0.875 \| good	0.166 \| good
2026-07-01T19:00:00.000Z	64 \| moderate	15.866 \| fine	70.986 \| fine	51.52 \| good	0.445 \| good	0.867 \| good	0.164 \| good
2026-07-01T20:00:00.000Z	64 \| moderate	16.486 \| fine	73.019 \| fine	56.777 \| fine	0.393 \| good	0.887 \| good	0.159 \| good

Griswold, Connecticut live air quality index now

Major air pollutants in Griswold, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Plainfield, Connecticut

Norwich, Connecticut

Windham, Connecticut

Ledyard, Connecticut

Montville, Connecticut

Killingly, Connecticut

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Frequently asked questions

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What is the current concentration of PM2.5 in Griswold, Connecticut?

What is the current concentration of PM10 in Griswold, Connecticut?

What is the current concentration of carbon monoxide (CO) in Griswold, Connecticut?

What is the current concentration of sulfur dioxide (SO2) in Griswold, Connecticut?

What is the current concentration of ozone (O3) in Griswold, Connecticut?

What is the current concentration of nitrogen dioxide (NO2) in Griswold, Connecticut?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Griswold, Connecticut?

What is the current concentration of PM₁₀ in Griswold, Connecticut?

What is the current concentration of sulfur dioxide (SO₂) in Griswold, Connecticut?

What is the current concentration of ozone (O₃) in Griswold, Connecticut?

What is the current concentration of nitrogen dioxide (NO₂) in Griswold, Connecticut?