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

The current PM10 concentration at Hartford, Connecticut is 19.976 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Hartford, Connecticut is 0.255 ppb.

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

The current ozone (O3) concentration at Hartford, Connecticut is 39.13 ppm.

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

The current nitrogen dioxide (NO2) concentration at Hartford, Connecticut is 3.816 ppb.

Hartford, Connecticut live air quality index now

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

The current PM2.5 concentration at Hartford, Connecticut is 13.258 μg/m3.

Stay updated with real-time air quality in Hartford, 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

Hartford, Connecticut

Last updated: ... (Local time)

Major air pollutants in Hartford, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

13.26 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

19.98 μg/m³

155

255

425

605+

Ozone (O₃)

39.13 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.82 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Hartford, Connecticut

Get Live Pollen Counts

Hartford, Connecticut

Scroll To Air Quality Map

Track live Hartford, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T19:00:00.000Z	41 \| good	6.885 \| good	13.223 \| good	44.044 \| good	0.265 \| good	12.241 \| good	0.276 \| good
2026-06-27T20:00:00.000Z	44 \| good	6.922 \| good	13.249 \| good	47.945 \| good	0.196 \| good	8.867 \| good	0.199 \| good
2026-06-27T21:00:00.000Z	42 \| good	6.877 \| good	12.447 \| good	45.054 \| good	0.203 \| good	8.555 \| good	0.187 \| good
2026-06-27T22:00:00.000Z	42 \| good	6.523 \| good	12.103 \| good	44.669 \| good	0.338 \| good	9.783 \| good	0.266 \| good
2026-06-27T23:00:00.000Z	42 \| good	6.53 \| good	12.423 \| good	44.928 \| good	0.254 \| good	8.451 \| good	0.274 \| good
2026-06-28T00:00:00.000Z	40 \| good	6.411 \| good	13.268 \| good	42.741 \| good	0.16 \| good	8.925 \| good	0.289 \| good
2026-06-28T01:00:00.000Z	38 \| good	6.535 \| good	11.933 \| good	38.726 \| good	0.188 \| good	9.158 \| good	0.278 \| good
2026-06-28T02:00:00.000Z	38 \| good	6.569 \| good	12.733 \| good	40.083 \| good	0.183 \| good	12.321 \| good	0.357 \| good
2026-06-28T03:00:00.000Z	67 \| moderate	18.298 \| fine	80.444 \| fine	41.398 \| good	0.343 \| good	12.973 \| good	0.279 \| good
2026-06-28T04:00:00.000Z	49 \| good	8.988 \| good	18.566 \| good	31.516 \| good	0.191 \| good	13.322 \| good	0.37 \| good
2026-06-28T05:00:00.000Z	52 \| moderate	9.586 \| good	15.653 \| good	29.368 \| good	0.162 \| good	14.195 \| good	0.38 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.453 \| good	18.662 \| good	24.818 \| good	0.143 \| good	13.628 \| good	0.381 \| good
2026-06-28T07:00:00.000Z	52 \| moderate	10.339 \| good	20.032 \| good	19.239 \| good	0.272 \| good	13.371 \| good	0.369 \| good
2026-06-28T08:00:00.000Z	54 \| moderate	10.676 \| good	18.355 \| good	11.158 \| good	0.176 \| good	12.961 \| good	0.3 \| good
2026-06-28T09:00:00.000Z	54 \| moderate	10.571 \| good	19.211 \| good	10.621 \| good	0.261 \| good	12.693 \| good	0.289 \| good
2026-06-28T10:00:00.000Z	54 \| moderate	10.602 \| good	18.171 \| good	9.063 \| good	0.18 \| good	11.832 \| good	0.281 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	11.276 \| good	18.206 \| good	10.694 \| good	0.267 \| good	10.253 \| good	0.294 \| good
2026-06-28T12:00:00.000Z	52 \| moderate	10.396 \| good	17.779 \| good	15.371 \| good	0.369 \| good	8.094 \| good	0.21 \| good
2026-06-28T13:00:00.000Z	54 \| moderate	10.71 \| good	19.633 \| good	15.676 \| good	0.454 \| good	7.49 \| good	0.198 \| good
2026-06-28T14:00:00.000Z	54 \| moderate	11.092 \| good	17.192 \| good	20.722 \| good	0.202 \| good	5.753 \| good	0.196 \| good
2026-06-28T15:00:00.000Z	54 \| moderate	11.069 \| good	19.724 \| good	22.523 \| good	0.183 \| good	4.583 \| good	0.117 \| good
2026-06-28T16:00:00.000Z	54 \| moderate	10.525 \| good	18.013 \| good	30.308 \| good	0.237 \| good	4.605 \| good	0.129 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	10.158 \| good	16.175 \| good	38.216 \| good	0.187 \| good	4.02 \| good	0.12 \| good
2026-06-28T18:00:00.000Z	52 \| moderate	9.55 \| good	16.592 \| good	42.279 \| good	0.191 \| good	4.42 \| good	0.196 \| good
2026-06-28T19:00:00.000Z	49 \| good	9.411 \| good	14.586 \| good	43.672 \| good	0.171 \| good	4.386 \| good	0.207 \| good
2026-06-28T20:00:00.000Z	49 \| good	8.874 \| good	13.721 \| good	48.246 \| good	0.205 \| good	4.585 \| good	0.196 \| good
2026-06-28T21:00:00.000Z	49 \| good	8.606 \| good	14.973 \| good	44.066 \| good	0.253 \| good	6.291 \| good	0.196 \| good
2026-06-28T22:00:00.000Z	44 \| good	8.245 \| good	14.22 \| good	43.091 \| good	0.211 \| good	6.571 \| good	0.274 \| good
2026-06-28T23:00:00.000Z	44 \| good	7.948 \| good	14.116 \| good	42.22 \| good	0.202 \| good	7.532 \| good	0.196 \| good
2026-06-29T00:00:00.000Z	38 \| good	6.868 \| good	13.055 \| good	41.005 \| good	0.202 \| good	7.59 \| good	0.284 \| good
2026-06-29T01:00:00.000Z	39 \| good	6.687 \| good	13.151 \| good	42.034 \| good	0.187 \| good	9.729 \| good	0.198 \| good
2026-06-29T02:00:00.000Z	38 \| good	7.141 \| good	12.994 \| good	39.087 \| good	0.215 \| good	9.663 \| good	0.198 \| good
2026-06-29T03:00:00.000Z	58 \| moderate	12.975 \| fine	58.691 \| fine	41.487 \| good	0.322 \| good	9.957 \| good	0.25 \| good
2026-06-29T04:00:00.000Z	44 \| good	8.087 \| good	14.199 \| good	37.209 \| good	0.314 \| good	10.509 \| good	0.279 \| good
2026-06-29T05:00:00.000Z	44 \| good	8.324 \| good	15.728 \| good	36.862 \| good	0.423 \| good	10.164 \| good	0.192 \| good
2026-06-29T06:00:00.000Z	44 \| good	8.422 \| good	15.198 \| good	29.407 \| good	0.165 \| good	9.876 \| good	0.124 \| good
2026-06-29T07:00:00.000Z	44 \| good	8.321 \| good	16.858 \| good	20.483 \| good	0.265 \| good	9.989 \| good	0.119 \| good
2026-06-29T08:00:00.000Z	49 \| good	8.775 \| good	16.607 \| good	20.532 \| good	0.165 \| good	13.163 \| good	0.124 \| good
2026-06-29T09:00:00.000Z	49 \| good	9.147 \| good	17.551 \| good	22.071 \| good	0.165 \| good	12.481 \| good	0.126 \| good
2026-06-29T10:00:00.000Z	52 \| moderate	10.288 \| good	18.267 \| good	16.722 \| good	0.179 \| good	11.488 \| good	0.143 \| good
2026-06-29T11:00:00.000Z	52 \| moderate	10.139 \| good	17.33 \| good	12.727 \| good	0.181 \| good	9.314 \| good	0.145 \| good
2026-06-29T12:00:00.000Z	52 \| moderate	9.501 \| good	17.671 \| good	14.985 \| good	0.155 \| good	9.879 \| good	0.135 \| good
2026-06-29T13:00:00.000Z	49 \| good	9.193 \| good	17.18 \| good	15.755 \| good	0.212 \| good	9.602 \| good	0.127 \| good
2026-06-29T14:00:00.000Z	49 \| good	8.759 \| good	17.698 \| good	19.516 \| good	0.227 \| good	5.92 \| good	0.125 \| good
2026-06-29T15:00:00.000Z	49 \| good	9.483 \| good	18.254 \| good	24.361 \| good	0.237 \| good	8.139 \| good	0.125 \| good
2026-06-29T16:00:00.000Z	54 \| moderate	11.01 \| good	21.212 \| good	28.584 \| good	0.227 \| good	8.9 \| good	0.201 \| good
2026-06-29T17:00:00.000Z	54 \| moderate	11.308 \| good	25.148 \| good	34.271 \| good	0.268 \| good	4.334 \| good	0.126 \| good
2026-06-29T18:00:00.000Z	56 \| moderate	12.359 \| fine	22.07 \| good	40.602 \| good	0.266 \| good	4.29 \| good	0.128 \| good
2026-06-29T18:00:00.000Z	58 \| moderate	13.258 \| fine	19.976 \| good	39.13 \| good	0.255 \| good	3.816 \| good	0.101 \| good
2026-06-29T19:00:00.000Z	36 \| good	3.695 \| good	15.967 \| good	39.058 \| good	0.21 \| good	0.737 \| good	0.15 \| good
2026-06-29T20:00:00.000Z	40 \| good	3.497 \| good	15.55 \| good	42.543 \| good	0.205 \| good	0.823 \| good	0.153 \| good
2026-06-29T21:00:00.000Z	41 \| good	3.218 \| good	14.057 \| good	44.363 \| good	0.202 \| good	1.013 \| good	0.157 \| good
2026-06-29T22:00:00.000Z	38 \| good	3.44 \| good	14.727 \| good	40.945 \| good	0.2 \| good	1.858 \| good	0.171 \| good
2026-06-29T23:00:00.000Z	44 \| good	6.193 \| good	27.345 \| good	47.445 \| good	0.202 \| good	2.922 \| good	0.19 \| good
2026-06-30T00:00:00.000Z	44 \| good	8.427 \| good	36.841 \| good	47.954 \| good	0.222 \| good	4.404 \| good	0.204 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	10.282 \| good	45.77 \| good	44.88 \| good	0.27 \| good	7.961 \| good	0.231 \| good
2026-06-30T02:00:00.000Z	56 \| moderate	11.62 \| good	50.969 \| good	42.355 \| good	0.3 \| good	7.508 \| good	0.221 \| good
2026-06-30T03:00:00.000Z	56 \| moderate	11.834 \| good	52.29 \| good	38.906 \| good	0.35 \| good	6.625 \| good	0.205 \| good
2026-06-30T04:00:00.000Z	54 \| moderate	11.332 \| good	50.008 \| good	34.945 \| good	0.413 \| good	6.654 \| good	0.196 \| good
2026-06-30T05:00:00.000Z	54 \| moderate	10.663 \| good	47.034 \| good	30.892 \| good	0.47 \| good	6.749 \| good	0.189 \| good
2026-06-30T06:00:00.000Z	52 \| moderate	10.495 \| good	46.6 \| good	29.393 \| good	0.532 \| good	7.095 \| good	0.18 \| good
2026-06-30T07:00:00.000Z	52 \| moderate	10.187 \| good	44.882 \| good	22.486 \| good	0.586 \| good	7.544 \| good	0.174 \| good
2026-06-30T08:00:00.000Z	54 \| moderate	10.979 \| good	48.682 \| good	19.216 \| good	0.633 \| good	8.134 \| good	0.172 \| good
2026-06-30T09:00:00.000Z	60 \| moderate	13.936 \| fine	62.478 \| fine	17.623 \| good	0.666 \| good	8.796 \| good	0.173 \| good
2026-06-30T10:00:00.000Z	60 \| moderate	13.563 \| fine	60.803 \| fine	15.772 \| good	0.679 \| good	9.429 \| good	0.178 \| good
2026-06-30T11:00:00.000Z	58 \| moderate	12.805 \| fine	58.091 \| fine	21.508 \| good	0.626 \| good	7.791 \| good	0.184 \| good
2026-06-30T12:00:00.000Z	60 \| moderate	13.625 \| fine	60.851 \| fine	32.187 \| good	0.604 \| good	5.836 \| good	0.195 \| good
2026-06-30T13:00:00.000Z	62 \| moderate	14.545 \| fine	64.908 \| fine	41.003 \| good	0.62 \| good	3.954 \| good	0.201 \| good
2026-06-30T14:00:00.000Z	60 \| moderate	13.986 \| fine	62.869 \| fine	51.031 \| good	0.593 \| good	2.574 \| good	0.202 \| good
2026-06-30T15:00:00.000Z	61 \| moderate	12.943 \| fine	58.664 \| fine	58.036 \| fine	0.564 \| good	1.798 \| good	0.19 \| good
2026-06-30T16:00:00.000Z	64 \| moderate	12.909 \| fine	58.499 \| fine	59.028 \| fine	0.508 \| good	1.437 \| good	0.179 \| good
2026-06-30T17:00:00.000Z	64 \| moderate	12.842 \| fine	57.562 \| fine	59.32 \| fine	0.475 \| good	1.24 \| good	0.174 \| good
2026-06-30T18:00:00.000Z	84 \| moderate	13.914 \| fine	61.769 \| fine	64.579 \| fine	0.477 \| good	1.143 \| good	0.171 \| good
2026-06-30T19:00:00.000Z	108 \| sensitive	15.638 \| fine	70.051 \| fine	73.202 \| moderate	0.5 \| good	1.088 \| good	0.169 \| good
2026-06-30T20:00:00.000Z	112 \| sensitive	14.43 \| fine	64.41 \| fine	74.232 \| moderate	0.508 \| good	1.109 \| good	0.165 \| good
2026-06-30T21:00:00.000Z	80 \| moderate	9.741 \| good	43.367 \| good	64.272 \| fine	0.494 \| good	1.268 \| good	0.162 \| good
2026-06-30T22:00:00.000Z	50 \| good	5.895 \| good	26.11 \| good	53.561 \| good	0.452 \| good	1.752 \| good	0.163 \| good
2026-06-30T23:00:00.000Z	42 \| good	4.47 \| good	19.426 \| good	45.377 \| good	0.403 \| good	2.529 \| good	0.165 \| good
2026-07-01T00:00:00.000Z	41 \| good	6.183 \| good	27.384 \| good	43.995 \| good	0.354 \| good	3.251 \| good	0.16 \| good
2026-07-01T01:00:00.000Z	33 \| good	6.28 \| good	27.859 \| good	36.353 \| good	0.331 \| good	3.957 \| good	0.156 \| good
2026-07-01T02:00:00.000Z	44 \| good	7.532 \| good	32.993 \| good	32.327 \| good	0.345 \| good	4.531 \| good	0.154 \| good
2026-07-01T03:00:00.000Z	52 \| moderate	9.6 \| good	42.775 \| good	29.28 \| good	0.387 \| good	5.214 \| good	0.153 \| good
2026-07-01T04:00:00.000Z	54 \| moderate	10.944 \| good	48.421 \| good	29.605 \| good	0.438 \| good	5.99 \| good	0.156 \| good
2026-07-01T05:00:00.000Z	54 \| moderate	10.868 \| good	48.288 \| good	27.637 \| good	0.479 \| good	6.43 \| good	0.158 \| good
2026-07-01T06:00:00.000Z	52 \| moderate	10.495 \| good	46.567 \| good	25.282 \| good	0.51 \| good	6.423 \| good	0.156 \| good
2026-07-01T07:00:00.000Z	52 \| moderate	9.767 \| good	43.585 \| good	22.781 \| good	0.537 \| good	5.703 \| good	0.15 \| good
2026-07-01T08:00:00.000Z	52 \| moderate	9.689 \| good	43.138 \| good	21.313 \| good	0.542 \| good	5.019 \| good	0.144 \| good
2026-07-01T09:00:00.000Z	52 \| moderate	9.972 \| good	44.536 \| good	20.107 \| good	0.536 \| good	4.7 \| good	0.142 \| good
2026-07-01T10:00:00.000Z	52 \| moderate	10.144 \| good	44.901 \| good	20.961 \| good	0.521 \| good	4.587 \| good	0.143 \| good
2026-07-01T11:00:00.000Z	49 \| good	8.88 \| good	38.944 \| good	25.726 \| good	0.494 \| good	3.956 \| good	0.146 \| good
2026-07-01T12:00:00.000Z	54 \| moderate	11.034 \| good	48.927 \| good	33.508 \| good	0.484 \| good	3.431 \| good	0.156 \| good
2026-07-01T13:00:00.000Z	62 \| moderate	14.681 \| fine	64.918 \| fine	42.664 \| good	0.515 \| good	2.65 \| good	0.166 \| good
2026-07-01T14:00:00.000Z	69 \| moderate	18.806 \| fine	82.783 \| fine	51.421 \| good	0.533 \| good	1.904 \| good	0.176 \| good
2026-07-01T15:00:00.000Z	75 \| moderate	22.222 \| fine	96.933 \| fine	56.197 \| fine	0.553 \| good	1.508 \| good	0.185 \| good
2026-07-01T16:00:00.000Z	79 \| moderate	24.497 \| fine	106.492 \| fine	56.682 \| fine	0.582 \| good	1.31 \| good	0.192 \| good
2026-07-01T17:00:00.000Z	81 \| moderate	24.989 \| fine	108.773 \| fine	57.073 \| fine	0.62 \| good	1.139 \| good	0.194 \| good
2026-07-01T18:00:00.000Z	79 \| moderate	24.178 \| fine	104.985 \| fine	53.89 \| good	0.61 \| good	1.008 \| good	0.189 \| good

Hartford

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Hartford, Connecticut air quality map: Track AQI near you

0.12ppm

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 Hartford, Connecticut updated?

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

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

The worst air quality in Hartford, Connecticut in the last 24 hours was observed at 03:00:00 on 2026-06-29.

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

In the last 24 hrs, the best air quality in Hartford, Connecticut was observed at 02:00:00 on 2026-06-29.

What is the current air quality in Hartford, Connecticut?

The current air quality in Hartford, Connecticut is 58, categorized as Moderate based on real-time data.

What pollutant is the most common in Hartford, Connecticut?

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

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

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

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

The current PM_2.5 concentration at Hartford, Connecticut is 13.258 μg/m³.

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

The current PM₁₀ concentration at Hartford, Connecticut is 19.976 μg/m³.

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

The current carbon monoxide (CO) concentration at Hartford, Connecticut is 0.101 ppm.

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

The current sulfur dioxide (SO₂) concentration at Hartford, Connecticut is 0.255 ppb.

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

The current ozone (O₃) concentration at Hartford, Connecticut is 39.13 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Hartford, Connecticut is 3.816 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-27T19:00:00.000Z	41 \| good	6.885 \| good	13.223 \| good	44.044 \| good	0.265 \| good	12.241 \| good	0.276 \| good
2026-06-27T20:00:00.000Z	44 \| good	6.922 \| good	13.249 \| good	47.945 \| good	0.196 \| good	8.867 \| good	0.199 \| good
2026-06-27T21:00:00.000Z	42 \| good	6.877 \| good	12.447 \| good	45.054 \| good	0.203 \| good	8.555 \| good	0.187 \| good
2026-06-27T22:00:00.000Z	42 \| good	6.523 \| good	12.103 \| good	44.669 \| good	0.338 \| good	9.783 \| good	0.266 \| good
2026-06-27T23:00:00.000Z	42 \| good	6.53 \| good	12.423 \| good	44.928 \| good	0.254 \| good	8.451 \| good	0.274 \| good
2026-06-28T00:00:00.000Z	40 \| good	6.411 \| good	13.268 \| good	42.741 \| good	0.16 \| good	8.925 \| good	0.289 \| good
2026-06-28T01:00:00.000Z	38 \| good	6.535 \| good	11.933 \| good	38.726 \| good	0.188 \| good	9.158 \| good	0.278 \| good
2026-06-28T02:00:00.000Z	38 \| good	6.569 \| good	12.733 \| good	40.083 \| good	0.183 \| good	12.321 \| good	0.357 \| good
2026-06-28T03:00:00.000Z	67 \| moderate	18.298 \| fine	80.444 \| fine	41.398 \| good	0.343 \| good	12.973 \| good	0.279 \| good
2026-06-28T04:00:00.000Z	49 \| good	8.988 \| good	18.566 \| good	31.516 \| good	0.191 \| good	13.322 \| good	0.37 \| good
2026-06-28T05:00:00.000Z	52 \| moderate	9.586 \| good	15.653 \| good	29.368 \| good	0.162 \| good	14.195 \| good	0.38 \| good
2026-06-28T06:00:00.000Z	52 \| moderate	10.453 \| good	18.662 \| good	24.818 \| good	0.143 \| good	13.628 \| good	0.381 \| good
2026-06-28T07:00:00.000Z	52 \| moderate	10.339 \| good	20.032 \| good	19.239 \| good	0.272 \| good	13.371 \| good	0.369 \| good
2026-06-28T08:00:00.000Z	54 \| moderate	10.676 \| good	18.355 \| good	11.158 \| good	0.176 \| good	12.961 \| good	0.3 \| good
2026-06-28T09:00:00.000Z	54 \| moderate	10.571 \| good	19.211 \| good	10.621 \| good	0.261 \| good	12.693 \| good	0.289 \| good
2026-06-28T10:00:00.000Z	54 \| moderate	10.602 \| good	18.171 \| good	9.063 \| good	0.18 \| good	11.832 \| good	0.281 \| good
2026-06-28T11:00:00.000Z	54 \| moderate	11.276 \| good	18.206 \| good	10.694 \| good	0.267 \| good	10.253 \| good	0.294 \| good
2026-06-28T12:00:00.000Z	52 \| moderate	10.396 \| good	17.779 \| good	15.371 \| good	0.369 \| good	8.094 \| good	0.21 \| good
2026-06-28T13:00:00.000Z	54 \| moderate	10.71 \| good	19.633 \| good	15.676 \| good	0.454 \| good	7.49 \| good	0.198 \| good
2026-06-28T14:00:00.000Z	54 \| moderate	11.092 \| good	17.192 \| good	20.722 \| good	0.202 \| good	5.753 \| good	0.196 \| good
2026-06-28T15:00:00.000Z	54 \| moderate	11.069 \| good	19.724 \| good	22.523 \| good	0.183 \| good	4.583 \| good	0.117 \| good
2026-06-28T16:00:00.000Z	54 \| moderate	10.525 \| good	18.013 \| good	30.308 \| good	0.237 \| good	4.605 \| good	0.129 \| good
2026-06-28T17:00:00.000Z	52 \| moderate	10.158 \| good	16.175 \| good	38.216 \| good	0.187 \| good	4.02 \| good	0.12 \| good
2026-06-28T18:00:00.000Z	52 \| moderate	9.55 \| good	16.592 \| good	42.279 \| good	0.191 \| good	4.42 \| good	0.196 \| good
2026-06-28T19:00:00.000Z	49 \| good	9.411 \| good	14.586 \| good	43.672 \| good	0.171 \| good	4.386 \| good	0.207 \| good
2026-06-28T20:00:00.000Z	49 \| good	8.874 \| good	13.721 \| good	48.246 \| good	0.205 \| good	4.585 \| good	0.196 \| good
2026-06-28T21:00:00.000Z	49 \| good	8.606 \| good	14.973 \| good	44.066 \| good	0.253 \| good	6.291 \| good	0.196 \| good
2026-06-28T22:00:00.000Z	44 \| good	8.245 \| good	14.22 \| good	43.091 \| good	0.211 \| good	6.571 \| good	0.274 \| good
2026-06-28T23:00:00.000Z	44 \| good	7.948 \| good	14.116 \| good	42.22 \| good	0.202 \| good	7.532 \| good	0.196 \| good
2026-06-29T00:00:00.000Z	38 \| good	6.868 \| good	13.055 \| good	41.005 \| good	0.202 \| good	7.59 \| good	0.284 \| good
2026-06-29T01:00:00.000Z	39 \| good	6.687 \| good	13.151 \| good	42.034 \| good	0.187 \| good	9.729 \| good	0.198 \| good
2026-06-29T02:00:00.000Z	38 \| good	7.141 \| good	12.994 \| good	39.087 \| good	0.215 \| good	9.663 \| good	0.198 \| good
2026-06-29T03:00:00.000Z	58 \| moderate	12.975 \| fine	58.691 \| fine	41.487 \| good	0.322 \| good	9.957 \| good	0.25 \| good
2026-06-29T04:00:00.000Z	44 \| good	8.087 \| good	14.199 \| good	37.209 \| good	0.314 \| good	10.509 \| good	0.279 \| good
2026-06-29T05:00:00.000Z	44 \| good	8.324 \| good	15.728 \| good	36.862 \| good	0.423 \| good	10.164 \| good	0.192 \| good
2026-06-29T06:00:00.000Z	44 \| good	8.422 \| good	15.198 \| good	29.407 \| good	0.165 \| good	9.876 \| good	0.124 \| good
2026-06-29T07:00:00.000Z	44 \| good	8.321 \| good	16.858 \| good	20.483 \| good	0.265 \| good	9.989 \| good	0.119 \| good
2026-06-29T08:00:00.000Z	49 \| good	8.775 \| good	16.607 \| good	20.532 \| good	0.165 \| good	13.163 \| good	0.124 \| good
2026-06-29T09:00:00.000Z	49 \| good	9.147 \| good	17.551 \| good	22.071 \| good	0.165 \| good	12.481 \| good	0.126 \| good
2026-06-29T10:00:00.000Z	52 \| moderate	10.288 \| good	18.267 \| good	16.722 \| good	0.179 \| good	11.488 \| good	0.143 \| good
2026-06-29T11:00:00.000Z	52 \| moderate	10.139 \| good	17.33 \| good	12.727 \| good	0.181 \| good	9.314 \| good	0.145 \| good
2026-06-29T12:00:00.000Z	52 \| moderate	9.501 \| good	17.671 \| good	14.985 \| good	0.155 \| good	9.879 \| good	0.135 \| good
2026-06-29T13:00:00.000Z	49 \| good	9.193 \| good	17.18 \| good	15.755 \| good	0.212 \| good	9.602 \| good	0.127 \| good
2026-06-29T14:00:00.000Z	49 \| good	8.759 \| good	17.698 \| good	19.516 \| good	0.227 \| good	5.92 \| good	0.125 \| good
2026-06-29T15:00:00.000Z	49 \| good	9.483 \| good	18.254 \| good	24.361 \| good	0.237 \| good	8.139 \| good	0.125 \| good
2026-06-29T16:00:00.000Z	54 \| moderate	11.01 \| good	21.212 \| good	28.584 \| good	0.227 \| good	8.9 \| good	0.201 \| good
2026-06-29T17:00:00.000Z	54 \| moderate	11.308 \| good	25.148 \| good	34.271 \| good	0.268 \| good	4.334 \| good	0.126 \| good
2026-06-29T18:00:00.000Z	56 \| moderate	12.359 \| fine	22.07 \| good	40.602 \| good	0.266 \| good	4.29 \| good	0.128 \| good
2026-06-29T18:00:00.000Z	58 \| moderate	13.258 \| fine	19.976 \| good	39.13 \| good	0.255 \| good	3.816 \| good	0.101 \| good
2026-06-29T19:00:00.000Z	36 \| good	3.695 \| good	15.967 \| good	39.058 \| good	0.21 \| good	0.737 \| good	0.15 \| good
2026-06-29T20:00:00.000Z	40 \| good	3.497 \| good	15.55 \| good	42.543 \| good	0.205 \| good	0.823 \| good	0.153 \| good
2026-06-29T21:00:00.000Z	41 \| good	3.218 \| good	14.057 \| good	44.363 \| good	0.202 \| good	1.013 \| good	0.157 \| good
2026-06-29T22:00:00.000Z	38 \| good	3.44 \| good	14.727 \| good	40.945 \| good	0.2 \| good	1.858 \| good	0.171 \| good
2026-06-29T23:00:00.000Z	44 \| good	6.193 \| good	27.345 \| good	47.445 \| good	0.202 \| good	2.922 \| good	0.19 \| good
2026-06-30T00:00:00.000Z	44 \| good	8.427 \| good	36.841 \| good	47.954 \| good	0.222 \| good	4.404 \| good	0.204 \| good
2026-06-30T01:00:00.000Z	52 \| moderate	10.282 \| good	45.77 \| good	44.88 \| good	0.27 \| good	7.961 \| good	0.231 \| good
2026-06-30T02:00:00.000Z	56 \| moderate	11.62 \| good	50.969 \| good	42.355 \| good	0.3 \| good	7.508 \| good	0.221 \| good
2026-06-30T03:00:00.000Z	56 \| moderate	11.834 \| good	52.29 \| good	38.906 \| good	0.35 \| good	6.625 \| good	0.205 \| good
2026-06-30T04:00:00.000Z	54 \| moderate	11.332 \| good	50.008 \| good	34.945 \| good	0.413 \| good	6.654 \| good	0.196 \| good
2026-06-30T05:00:00.000Z	54 \| moderate	10.663 \| good	47.034 \| good	30.892 \| good	0.47 \| good	6.749 \| good	0.189 \| good
2026-06-30T06:00:00.000Z	52 \| moderate	10.495 \| good	46.6 \| good	29.393 \| good	0.532 \| good	7.095 \| good	0.18 \| good
2026-06-30T07:00:00.000Z	52 \| moderate	10.187 \| good	44.882 \| good	22.486 \| good	0.586 \| good	7.544 \| good	0.174 \| good
2026-06-30T08:00:00.000Z	54 \| moderate	10.979 \| good	48.682 \| good	19.216 \| good	0.633 \| good	8.134 \| good	0.172 \| good
2026-06-30T09:00:00.000Z	60 \| moderate	13.936 \| fine	62.478 \| fine	17.623 \| good	0.666 \| good	8.796 \| good	0.173 \| good
2026-06-30T10:00:00.000Z	60 \| moderate	13.563 \| fine	60.803 \| fine	15.772 \| good	0.679 \| good	9.429 \| good	0.178 \| good
2026-06-30T11:00:00.000Z	58 \| moderate	12.805 \| fine	58.091 \| fine	21.508 \| good	0.626 \| good	7.791 \| good	0.184 \| good
2026-06-30T12:00:00.000Z	60 \| moderate	13.625 \| fine	60.851 \| fine	32.187 \| good	0.604 \| good	5.836 \| good	0.195 \| good
2026-06-30T13:00:00.000Z	62 \| moderate	14.545 \| fine	64.908 \| fine	41.003 \| good	0.62 \| good	3.954 \| good	0.201 \| good
2026-06-30T14:00:00.000Z	60 \| moderate	13.986 \| fine	62.869 \| fine	51.031 \| good	0.593 \| good	2.574 \| good	0.202 \| good
2026-06-30T15:00:00.000Z	61 \| moderate	12.943 \| fine	58.664 \| fine	58.036 \| fine	0.564 \| good	1.798 \| good	0.19 \| good
2026-06-30T16:00:00.000Z	64 \| moderate	12.909 \| fine	58.499 \| fine	59.028 \| fine	0.508 \| good	1.437 \| good	0.179 \| good
2026-06-30T17:00:00.000Z	64 \| moderate	12.842 \| fine	57.562 \| fine	59.32 \| fine	0.475 \| good	1.24 \| good	0.174 \| good
2026-06-30T18:00:00.000Z	84 \| moderate	13.914 \| fine	61.769 \| fine	64.579 \| fine	0.477 \| good	1.143 \| good	0.171 \| good
2026-06-30T19:00:00.000Z	108 \| sensitive	15.638 \| fine	70.051 \| fine	73.202 \| moderate	0.5 \| good	1.088 \| good	0.169 \| good
2026-06-30T20:00:00.000Z	112 \| sensitive	14.43 \| fine	64.41 \| fine	74.232 \| moderate	0.508 \| good	1.109 \| good	0.165 \| good
2026-06-30T21:00:00.000Z	80 \| moderate	9.741 \| good	43.367 \| good	64.272 \| fine	0.494 \| good	1.268 \| good	0.162 \| good
2026-06-30T22:00:00.000Z	50 \| good	5.895 \| good	26.11 \| good	53.561 \| good	0.452 \| good	1.752 \| good	0.163 \| good
2026-06-30T23:00:00.000Z	42 \| good	4.47 \| good	19.426 \| good	45.377 \| good	0.403 \| good	2.529 \| good	0.165 \| good
2026-07-01T00:00:00.000Z	41 \| good	6.183 \| good	27.384 \| good	43.995 \| good	0.354 \| good	3.251 \| good	0.16 \| good
2026-07-01T01:00:00.000Z	33 \| good	6.28 \| good	27.859 \| good	36.353 \| good	0.331 \| good	3.957 \| good	0.156 \| good
2026-07-01T02:00:00.000Z	44 \| good	7.532 \| good	32.993 \| good	32.327 \| good	0.345 \| good	4.531 \| good	0.154 \| good
2026-07-01T03:00:00.000Z	52 \| moderate	9.6 \| good	42.775 \| good	29.28 \| good	0.387 \| good	5.214 \| good	0.153 \| good
2026-07-01T04:00:00.000Z	54 \| moderate	10.944 \| good	48.421 \| good	29.605 \| good	0.438 \| good	5.99 \| good	0.156 \| good
2026-07-01T05:00:00.000Z	54 \| moderate	10.868 \| good	48.288 \| good	27.637 \| good	0.479 \| good	6.43 \| good	0.158 \| good
2026-07-01T06:00:00.000Z	52 \| moderate	10.495 \| good	46.567 \| good	25.282 \| good	0.51 \| good	6.423 \| good	0.156 \| good
2026-07-01T07:00:00.000Z	52 \| moderate	9.767 \| good	43.585 \| good	22.781 \| good	0.537 \| good	5.703 \| good	0.15 \| good
2026-07-01T08:00:00.000Z	52 \| moderate	9.689 \| good	43.138 \| good	21.313 \| good	0.542 \| good	5.019 \| good	0.144 \| good
2026-07-01T09:00:00.000Z	52 \| moderate	9.972 \| good	44.536 \| good	20.107 \| good	0.536 \| good	4.7 \| good	0.142 \| good
2026-07-01T10:00:00.000Z	52 \| moderate	10.144 \| good	44.901 \| good	20.961 \| good	0.521 \| good	4.587 \| good	0.143 \| good
2026-07-01T11:00:00.000Z	49 \| good	8.88 \| good	38.944 \| good	25.726 \| good	0.494 \| good	3.956 \| good	0.146 \| good
2026-07-01T12:00:00.000Z	54 \| moderate	11.034 \| good	48.927 \| good	33.508 \| good	0.484 \| good	3.431 \| good	0.156 \| good
2026-07-01T13:00:00.000Z	62 \| moderate	14.681 \| fine	64.918 \| fine	42.664 \| good	0.515 \| good	2.65 \| good	0.166 \| good
2026-07-01T14:00:00.000Z	69 \| moderate	18.806 \| fine	82.783 \| fine	51.421 \| good	0.533 \| good	1.904 \| good	0.176 \| good
2026-07-01T15:00:00.000Z	75 \| moderate	22.222 \| fine	96.933 \| fine	56.197 \| fine	0.553 \| good	1.508 \| good	0.185 \| good
2026-07-01T16:00:00.000Z	79 \| moderate	24.497 \| fine	106.492 \| fine	56.682 \| fine	0.582 \| good	1.31 \| good	0.192 \| good
2026-07-01T17:00:00.000Z	81 \| moderate	24.989 \| fine	108.773 \| fine	57.073 \| fine	0.62 \| good	1.139 \| good	0.194 \| good
2026-07-01T18:00:00.000Z	79 \| moderate	24.178 \| fine	104.985 \| fine	53.89 \| good	0.61 \| good	1.008 \| good	0.189 \| good

Hartford, Connecticut live air quality index now

Major air pollutants in Hartford, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Hartford, Connecticut air quality map: Track AQI near you

Air quality in nearby cities

East Hartford, Connecticut

West Hartford, Connecticut

Wethersfield, Connecticut

Bloomfield, Connecticut

Newington, Connecticut

Windsor, Connecticut

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Frequently asked questions

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

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

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

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

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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 Hartford, Connecticut?

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

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

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

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