What are the current PM10 levels at New Haven, Connecticut?

The current PM10 levels in New Haven, Connecticut are 18.164 μg/m3.

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

The current sulfur dioxide (SO2) levels in New Haven, Connecticut are 0.2 ppb.

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

The current ozone (O3) levels at New Haven, Connecticut is 19.048 ppm.

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

The current nitrogen dioxide (NO2) levels at New Haven, Connecticut is 22.95 ppb.

Real-time air quality index in New Haven, Connecticut today

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

The measured PM2.5 levels in New Haven, Connecticut at present are 11.109 μg/m3.

Stay updated with real-time air quality in New Haven, 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

New Haven, Connecticut

Last updated: ... (Local time)

Common air pollutants in New Haven, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.11 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.16 μg/m³

155

255

425

605+

Ozone (O₃)

19.05 ppb

201

201+

Sulfur Dioxide (SO₂)

0.20 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

22.95 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

New Haven, Connecticut

Get Live Pollen Counts

New Haven, Connecticut

Scroll To Air Quality Map

Track live New Haven, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	28 \| good	2.644 \| good	7.042 \| good	30.43 \| good	0.3 \| good	5.621 \| good	0.21 \| good
2025-12-27T01:00:00.000Z	31 \| good	2.763 \| good	5.912 \| good	33.113 \| good	0.358 \| good	6.159 \| good	0.219 \| good
2025-12-27T02:00:00.000Z	30 \| good	2.848 \| good	5.514 \| good	31.609 \| good	0.42 \| good	7.284 \| good	0.208 \| good
2025-12-27T03:00:00.000Z	24 \| good	2.935 \| good	5.388 \| good	25.534 \| good	0.314 \| good	8.997 \| good	0.195 \| good
2025-12-27T04:00:00.000Z	24 \| good	3.068 \| good	4.663 \| good	25.768 \| good	0.317 \| good	9.503 \| good	0.204 \| good
2025-12-27T05:00:00.000Z	28 \| good	3.19 \| good	5.451 \| good	29.819 \| good	0.422 \| good	11.807 \| good	0.284 \| good
2025-12-27T06:00:00.000Z	26 \| good	3.572 \| good	5.401 \| good	27.779 \| good	0.425 \| good	11.74 \| good	0.284 \| good
2025-12-27T07:00:00.000Z	22 \| good	3.435 \| good	23.979 \| good	23.672 \| good	0.421 \| good	13.099 \| good	0.224 \| good
2025-12-27T08:00:00.000Z	27 \| good	4.831 \| good	13.962 \| good	25.495 \| good	0.269 \| good	13.011 \| good	0.224 \| good
2025-12-27T09:00:00.000Z	24 \| good	3.499 \| good	5.332 \| good	25.838 \| good	0.332 \| good	7.817 \| good	0.193 \| good
2025-12-27T10:00:00.000Z	22 \| good	3.695 \| good	6.019 \| good	23.256 \| good	0.297 \| good	9.361 \| good	0.186 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.646 \| good	5.95 \| good	23.998 \| good	0.303 \| good	9.003 \| good	0.186 \| good
2025-12-27T12:00:00.000Z	23 \| good	3.62 \| good	5.987 \| good	24.703 \| good	0.114 \| good	9.513 \| good	0.186 \| good
2025-12-27T13:00:00.000Z	22 \| good	3.62 \| good	5.987 \| good	22.87 \| good	0.128 \| good	9.364 \| good	0.186 \| good
2025-12-27T14:00:00.000Z	22 \| good	3.664 \| good	6.231 \| good	23.979 \| good	0.139 \| good	9.577 \| good	0.266 \| good
2025-12-27T15:00:00.000Z	24 \| good	3.746 \| good	6.231 \| good	25.573 \| good	0.132 \| good	8.619 \| good	0.266 \| good
2025-12-27T16:00:00.000Z	22 \| good	3.822 \| good	6.981 \| good	23.979 \| good	0.119 \| good	7.565 \| good	0.277 \| good
2025-12-27T17:00:00.000Z	24 \| good	3.907 \| good	7.019 \| good	25.534 \| good	0.119 \| good	6.968 \| good	0.277 \| good
2025-12-27T18:00:00.000Z	24 \| good	3.982 \| good	7.019 \| good	25.839 \| good	0.121 \| good	6.477 \| good	0.266 \| good
2025-12-27T19:00:00.000Z	27 \| good	4.059 \| good	6.981 \| good	29.459 \| good	0.121 \| good	6.226 \| good	0.266 \| good
2025-12-27T20:00:00.000Z	28 \| good	4.065 \| good	7 \| good	29.501 \| good	0.121 \| good	6.384 \| good	0.189 \| good
2025-12-27T21:00:00.000Z	29 \| good	4.073 \| good	7.032 \| good	31.237 \| good	0.121 \| good	7.292 \| good	0.187 \| good
2025-12-27T22:00:00.000Z	29 \| good	4.289 \| good	7.032 \| good	30.645 \| good	0.12 \| good	16.211 \| good	0.282 \| good
2025-12-27T23:00:00.000Z	27 \| good	5.094 \| good	7.43 \| good	25.354 \| good	0.133 \| good	22.178 \| good	0.377 \| good
2025-12-28T00:00:00.000Z	33 \| good	6.483 \| good	10.274 \| good	23.255 \| good	0.134 \| good	30.755 \| good	0.399 \| good
2025-12-28T01:00:00.000Z	44 \| good	8.16 \| good	11.648 \| good	15.56 \| good	0.242 \| good	31.72 \| good	0.507 \| good
2025-12-28T02:00:00.000Z	52 \| moderate	9.862 \| good	13.82 \| good	13.811 \| good	0.408 \| good	35.697 \| good	0.608 \| good
2025-12-28T03:00:00.000Z	58 \| moderate	12.511 \| fine	56.438 \| fine	7.245 \| good	0.957 \| good	14.535 \| good	0.247 \| good
2025-12-28T04:00:00.000Z	58 \| moderate	12.74 \| fine	17.297 \| good	6.039 \| good	0.494 \| good	32.291 \| good	0.677 \| good
2025-12-28T05:00:00.000Z	62 \| moderate	15.051 \| fine	19.804 \| good	6.376 \| good	0.452 \| good	34.087 \| good	0.604 \| good
2025-12-28T06:00:00.000Z	56 \| moderate	12.125 \| fine	16.653 \| good	6.234 \| good	0.5 \| good	29.516 \| good	0.339 \| good
2025-12-28T07:00:00.000Z	56 \| moderate	12.2 \| fine	39.756 \| good	4.642 \| good	0.453 \| good	20.396 \| good	0.425 \| good
2025-12-28T08:00:00.000Z	44 \| good	8.221 \| good	11.766 \| good	12.758 \| good	0.148 \| good	20.448 \| good	0.181 \| good
2025-12-28T09:00:00.000Z	44 \| good	7.868 \| good	11.186 \| good	12.428 \| good	0.486 \| good	19.099 \| good	0.201 \| good
2025-12-28T10:00:00.000Z	54 \| moderate	10.537 \| good	14.168 \| good	13.288 \| good	0.339 \| good	28.011 \| good	0.509 \| good
2025-12-28T11:00:00.000Z	54 \| moderate	10.67 \| good	14.269 \| good	11.879 \| good	0.232 \| good	30.431 \| good	0.327 \| good
2025-12-28T12:00:00.000Z	54 \| moderate	10.778 \| good	14.994 \| good	11.26 \| good	0.313 \| good	30.27 \| good	0.338 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	10.778 \| good	14.994 \| good	8.349 \| good	0.311 \| good	30.614 \| good	0.338 \| good
2025-12-28T14:00:00.000Z	58 \| moderate	13.09 \| fine	60.318 \| fine	7.637 \| good	0.409 \| good	28.068 \| good	0.536 \| good
2025-12-28T15:00:00.000Z	54 \| moderate	11.346 \| good	16.021 \| good	8.097 \| good	0.36 \| good	22.165 \| good	0.318 \| good
2025-12-28T16:00:00.000Z	52 \| moderate	9.957 \| good	15.502 \| good	10.509 \| good	0.275 \| good	17.676 \| good	0.225 \| good
2025-12-28T17:00:00.000Z	49 \| good	9.411 \| good	17.663 \| good	14.001 \| good	0.273 \| good	16.103 \| good	0.214 \| good
2025-12-28T18:00:00.000Z	49 \| good	9.43 \| good	18.724 \| good	16.716 \| good	0.286 \| good	13.5 \| good	0.216 \| good
2025-12-28T19:00:00.000Z	52 \| moderate	9.971 \| good	22.049 \| good	20.154 \| good	0.278 \| good	15.554 \| good	0.237 \| good
2025-12-28T20:00:00.000Z	52 \| moderate	10.234 \| good	24.07 \| good	21.488 \| good	0.287 \| good	16.557 \| good	0.25 \| good
2025-12-28T21:00:00.000Z	52 \| moderate	10.09 \| good	22.794 \| good	20.083 \| good	0.279 \| good	16.292 \| good	0.246 \| good
2025-12-28T22:00:00.000Z	54 \| moderate	11.108 \| good	21.118 \| good	20.875 \| good	0.209 \| good	24.242 \| good	0.348 \| good
2025-12-28T23:00:00.000Z	54 \| moderate	11.109 \| good	18.164 \| good	19.048 \| good	0.2 \| good	22.95 \| good	0.303 \| good
2025-12-29T00:00:00.000Z	81 \| moderate	25.471 \| fine	110.973 \| fine	2.356 \| good	2.904 \| good	30.647 \| good	0.309 \| good
2025-12-29T01:00:00.000Z	77 \| moderate	23.265 \| fine	102.274 \| fine	2.307 \| good	2.511 \| good	28.621 \| good	0.288 \| good
2025-12-29T02:00:00.000Z	67 \| moderate	18.012 \| fine	79.747 \| fine	7.589 \| good	2.117 \| good	26.595 \| good	0.267 \| good
2025-12-29T03:00:00.000Z	56 \| moderate	11.82 \| good	52.855 \| good	17.238 \| good	1.724 \| good	24.569 \| good	0.247 \| good
2025-12-29T04:00:00.000Z	49 \| good	9.484 \| good	42.365 \| good	22.699 \| good	1.331 \| good	19.241 \| good	0.219 \| good
2025-12-29T05:00:00.000Z	38 \| good	6.911 \| good	30.463 \| good	28.052 \| good	0.938 \| good	13.913 \| good	0.192 \| good
2025-12-29T06:00:00.000Z	28 \| good	4.082 \| good	17.968 \| good	30.142 \| good	0.545 \| good	8.585 \| good	0.165 \| good
2025-12-29T07:00:00.000Z	26 \| good	3.831 \| good	16.694 \| good	28.326 \| good	0.548 \| good	6.74 \| good	0.155 \| good
2025-12-29T08:00:00.000Z	24 \| good	4.378 \| good	18.893 \| good	26.357 \| good	0.551 \| good	4.896 \| good	0.146 \| good
2025-12-29T09:00:00.000Z	22 \| good	4.321 \| good	18.778 \| good	19.143 \| good	0.554 \| good	3.052 \| good	0.136 \| good
2025-12-29T10:00:00.000Z	16 \| good	3.457 \| good	14.918 \| good	16.785 \| good	0.734 \| good	4.149 \| good	0.145 \| good
2025-12-29T11:00:00.000Z	16 \| good	3.32 \| good	14.262 \| good	17.217 \| good	0.914 \| good	5.246 \| good	0.154 \| good
2025-12-29T12:00:00.000Z	27 \| good	5.07 \| good	21.957 \| good	16.66 \| good	1.094 \| good	6.342 \| good	0.164 \| good
2025-12-29T13:00:00.000Z	38 \| good	7.028 \| good	31.17 \| good	14.151 \| good	1.176 \| good	7.459 \| good	0.173 \| good
2025-12-29T14:00:00.000Z	44 \| good	7.674 \| good	33.795 \| good	14.185 \| good	1.258 \| good	8.576 \| good	0.183 \| good
2025-12-29T15:00:00.000Z	49 \| good	8.73 \| good	38.351 \| good	11.111 \| good	1.341 \| good	9.693 \| good	0.193 \| good
2025-12-29T16:00:00.000Z	49 \| good	8.997 \| good	40.372 \| good	13.081 \| good	1.352 \| good	10.057 \| good	0.192 \| good
2025-12-29T17:00:00.000Z	49 \| good	8.809 \| good	38.604 \| good	8.677 \| good	1.363 \| good	10.422 \| good	0.192 \| good
2025-12-29T18:00:00.000Z	52 \| moderate	10.286 \| good	45.39 \| good	3.731 \| good	1.375 \| good	10.787 \| good	0.192 \| good
2025-12-29T19:00:00.000Z	52 \| moderate	9.935 \| good	43.872 \| good	11.102 \| good	1.495 \| good	9.946 \| good	0.187 \| good
2025-12-29T20:00:00.000Z	28 \| good	4.914 \| good	21.29 \| good	30.381 \| good	1.615 \| good	9.106 \| good	0.182 \| good
2025-12-29T21:00:00.000Z	33 \| good	2.353 \| good	9.816 \| good	36.354 \| good	1.735 \| good	8.265 \| good	0.177 \| good
2025-12-29T22:00:00.000Z	32 \| good	4.154 \| good	18.143 \| good	34.528 \| good	1.63 \| good	6.651 \| good	0.176 \| good
2025-12-29T23:00:00.000Z	25 \| good	3.731 \| good	16.319 \| good	27.318 \| good	1.525 \| good	5.036 \| good	0.176 \| good
2025-12-30T00:00:00.000Z	20 \| good	2.445 \| good	10.02 \| good	22.123 \| good	1.42 \| good	3.422 \| good	0.176 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.82 \| good	7.587 \| good	20.408 \| good	1.224 \| good	3.373 \| good	0.173 \| good
2025-12-30T02:00:00.000Z	18 \| good	1.481 \| good	6.088 \| good	18.524 \| good	1.028 \| good	3.324 \| good	0.169 \| good
2025-12-30T03:00:00.000Z	18 \| good	1.672 \| good	7.088 \| good	18.654 \| good	0.832 \| good	3.275 \| good	0.166 \| good
2025-12-30T04:00:00.000Z	18 \| good	1.459 \| good	5.968 \| good	18.907 \| good	0.712 \| good	2.785 \| good	0.16 \| good
2025-12-30T05:00:00.000Z	24 \| good	1.234 \| good	5.003 \| good	25.758 \| good	0.592 \| good	2.295 \| good	0.153 \| good
2025-12-30T06:00:00.000Z	29 \| good	0.926 \| good	3.653 \| good	31.228 \| good	0.472 \| good	1.805 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	29 \| good	0.822 \| good	3.032 \| good	31.361 \| good	0.407 \| good	1.548 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	29 \| good	1.066 \| good	4.141 \| good	30.599 \| good	0.343 \| good	1.29 \| good	0.141 \| good
2025-12-30T09:00:00.000Z	27 \| good	0.753 \| good	2.882 \| good	28.951 \| good	0.279 \| good	1.033 \| good	0.138 \| good
2025-12-30T10:00:00.000Z	26 \| good	0.897 \| good	3.512 \| good	27.695 \| good	0.307 \| good	1.292 \| good	0.141 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.158 \| good	0.144 \| good	31.541 \| good	0.336 \| good	1.552 \| good	0.144 \| good
2025-12-30T12:00:00.000Z	31 \| good	0.103 \| good	0 \| good	33.368 \| good	0.364 \| good	1.812 \| good	0.147 \| good
2025-12-30T13:00:00.000Z	32 \| good	0.131 \| good	0.027 \| good	35.1 \| good	0.365 \| good	1.739 \| good	0.146 \| good
2025-12-30T14:00:00.000Z	33 \| good	0.143 \| good	0.124 \| good	35.821 \| good	0.366 \| good	1.667 \| good	0.146 \| good
2025-12-30T15:00:00.000Z	33 \| good	0.147 \| good	0.212 \| good	36.13 \| good	0.367 \| good	1.594 \| good	0.146 \| good
2025-12-30T16:00:00.000Z	33 \| good	0.233 \| good	0.884 \| good	35.685 \| good	0.355 \| good	1.484 \| good	0.144 \| good
2025-12-30T17:00:00.000Z	33 \| good	0.285 \| good	0.913 \| good	36.068 \| good	0.342 \| good	1.374 \| good	0.141 \| good
2025-12-30T18:00:00.000Z	33 \| good	0.877 \| good	3.459 \| good	36.402 \| good	0.329 \| good	1.263 \| good	0.139 \| good
2025-12-30T19:00:00.000Z	36 \| good	1.294 \| good	5 \| good	38.513 \| good	0.368 \| good	1.54 \| good	0.138 \| good
2025-12-30T20:00:00.000Z	37 \| good	1.01 \| good	4 \| good	40.162 \| good	0.406 \| good	1.816 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	35 \| good	0.519 \| good	2 \| good	37.565 \| good	0.444 \| good	2.093 \| good	0.136 \| good
2025-12-30T22:00:00.000Z	32 \| good	0.876 \| good	3.432 \| good	35.234 \| good	0.512 \| good	2.461 \| good	0.137 \| good
2025-12-30T23:00:00.000Z	31 \| good	0.634 \| good	2.203 \| good	34.196 \| good	0.579 \| good	2.83 \| good	0.139 \| good

New Haven

Empower business decisions with accurate air quality data

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

0.34ppm

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 New Haven, Connecticut updated?

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

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

The worst air quality in New Haven, Connecticut was recorded at 05:00:00 on 2025-12-28.

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

The best air quality in New Haven, Connecticut was recorded at 11:00:00 on 2025-12-27.

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

The real-time air quality index in New Haven, Connecticut is 54, currently categorized as Moderate.

Which pollutant is found most often in New Haven, Connecticut?

The most common pollutant in New Haven, Connecticut is PM2.5.

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

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

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

The measured PM_2.5 levels in New Haven, Connecticut at present are 11.109 μg/m³.

What are the current PM₁₀ levels at New Haven, Connecticut?

The current PM₁₀ levels in New Haven, Connecticut are 18.164 μg/m³.

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

The current carbon monoxide (CO) level in New Haven, Connecticut is 0.303 ppm.

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

The current sulfur dioxide (SO₂) levels in New Haven, Connecticut are 0.2 ppb.

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

The current ozone (O₃) levels at New Haven, Connecticut is 19.048 ppm.

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

The current nitrogen dioxide (NO₂) levels at New Haven, Connecticut is 22.95 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-27T00:00:00.000Z	28 \| good	2.644 \| good	7.042 \| good	30.43 \| good	0.3 \| good	5.621 \| good	0.21 \| good
2025-12-27T01:00:00.000Z	31 \| good	2.763 \| good	5.912 \| good	33.113 \| good	0.358 \| good	6.159 \| good	0.219 \| good
2025-12-27T02:00:00.000Z	30 \| good	2.848 \| good	5.514 \| good	31.609 \| good	0.42 \| good	7.284 \| good	0.208 \| good
2025-12-27T03:00:00.000Z	24 \| good	2.935 \| good	5.388 \| good	25.534 \| good	0.314 \| good	8.997 \| good	0.195 \| good
2025-12-27T04:00:00.000Z	24 \| good	3.068 \| good	4.663 \| good	25.768 \| good	0.317 \| good	9.503 \| good	0.204 \| good
2025-12-27T05:00:00.000Z	28 \| good	3.19 \| good	5.451 \| good	29.819 \| good	0.422 \| good	11.807 \| good	0.284 \| good
2025-12-27T06:00:00.000Z	26 \| good	3.572 \| good	5.401 \| good	27.779 \| good	0.425 \| good	11.74 \| good	0.284 \| good
2025-12-27T07:00:00.000Z	22 \| good	3.435 \| good	23.979 \| good	23.672 \| good	0.421 \| good	13.099 \| good	0.224 \| good
2025-12-27T08:00:00.000Z	27 \| good	4.831 \| good	13.962 \| good	25.495 \| good	0.269 \| good	13.011 \| good	0.224 \| good
2025-12-27T09:00:00.000Z	24 \| good	3.499 \| good	5.332 \| good	25.838 \| good	0.332 \| good	7.817 \| good	0.193 \| good
2025-12-27T10:00:00.000Z	22 \| good	3.695 \| good	6.019 \| good	23.256 \| good	0.297 \| good	9.361 \| good	0.186 \| good
2025-12-27T11:00:00.000Z	22 \| good	3.646 \| good	5.95 \| good	23.998 \| good	0.303 \| good	9.003 \| good	0.186 \| good
2025-12-27T12:00:00.000Z	23 \| good	3.62 \| good	5.987 \| good	24.703 \| good	0.114 \| good	9.513 \| good	0.186 \| good
2025-12-27T13:00:00.000Z	22 \| good	3.62 \| good	5.987 \| good	22.87 \| good	0.128 \| good	9.364 \| good	0.186 \| good
2025-12-27T14:00:00.000Z	22 \| good	3.664 \| good	6.231 \| good	23.979 \| good	0.139 \| good	9.577 \| good	0.266 \| good
2025-12-27T15:00:00.000Z	24 \| good	3.746 \| good	6.231 \| good	25.573 \| good	0.132 \| good	8.619 \| good	0.266 \| good
2025-12-27T16:00:00.000Z	22 \| good	3.822 \| good	6.981 \| good	23.979 \| good	0.119 \| good	7.565 \| good	0.277 \| good
2025-12-27T17:00:00.000Z	24 \| good	3.907 \| good	7.019 \| good	25.534 \| good	0.119 \| good	6.968 \| good	0.277 \| good
2025-12-27T18:00:00.000Z	24 \| good	3.982 \| good	7.019 \| good	25.839 \| good	0.121 \| good	6.477 \| good	0.266 \| good
2025-12-27T19:00:00.000Z	27 \| good	4.059 \| good	6.981 \| good	29.459 \| good	0.121 \| good	6.226 \| good	0.266 \| good
2025-12-27T20:00:00.000Z	28 \| good	4.065 \| good	7 \| good	29.501 \| good	0.121 \| good	6.384 \| good	0.189 \| good
2025-12-27T21:00:00.000Z	29 \| good	4.073 \| good	7.032 \| good	31.237 \| good	0.121 \| good	7.292 \| good	0.187 \| good
2025-12-27T22:00:00.000Z	29 \| good	4.289 \| good	7.032 \| good	30.645 \| good	0.12 \| good	16.211 \| good	0.282 \| good
2025-12-27T23:00:00.000Z	27 \| good	5.094 \| good	7.43 \| good	25.354 \| good	0.133 \| good	22.178 \| good	0.377 \| good
2025-12-28T00:00:00.000Z	33 \| good	6.483 \| good	10.274 \| good	23.255 \| good	0.134 \| good	30.755 \| good	0.399 \| good
2025-12-28T01:00:00.000Z	44 \| good	8.16 \| good	11.648 \| good	15.56 \| good	0.242 \| good	31.72 \| good	0.507 \| good
2025-12-28T02:00:00.000Z	52 \| moderate	9.862 \| good	13.82 \| good	13.811 \| good	0.408 \| good	35.697 \| good	0.608 \| good
2025-12-28T03:00:00.000Z	58 \| moderate	12.511 \| fine	56.438 \| fine	7.245 \| good	0.957 \| good	14.535 \| good	0.247 \| good
2025-12-28T04:00:00.000Z	58 \| moderate	12.74 \| fine	17.297 \| good	6.039 \| good	0.494 \| good	32.291 \| good	0.677 \| good
2025-12-28T05:00:00.000Z	62 \| moderate	15.051 \| fine	19.804 \| good	6.376 \| good	0.452 \| good	34.087 \| good	0.604 \| good
2025-12-28T06:00:00.000Z	56 \| moderate	12.125 \| fine	16.653 \| good	6.234 \| good	0.5 \| good	29.516 \| good	0.339 \| good
2025-12-28T07:00:00.000Z	56 \| moderate	12.2 \| fine	39.756 \| good	4.642 \| good	0.453 \| good	20.396 \| good	0.425 \| good
2025-12-28T08:00:00.000Z	44 \| good	8.221 \| good	11.766 \| good	12.758 \| good	0.148 \| good	20.448 \| good	0.181 \| good
2025-12-28T09:00:00.000Z	44 \| good	7.868 \| good	11.186 \| good	12.428 \| good	0.486 \| good	19.099 \| good	0.201 \| good
2025-12-28T10:00:00.000Z	54 \| moderate	10.537 \| good	14.168 \| good	13.288 \| good	0.339 \| good	28.011 \| good	0.509 \| good
2025-12-28T11:00:00.000Z	54 \| moderate	10.67 \| good	14.269 \| good	11.879 \| good	0.232 \| good	30.431 \| good	0.327 \| good
2025-12-28T12:00:00.000Z	54 \| moderate	10.778 \| good	14.994 \| good	11.26 \| good	0.313 \| good	30.27 \| good	0.338 \| good
2025-12-28T13:00:00.000Z	54 \| moderate	10.778 \| good	14.994 \| good	8.349 \| good	0.311 \| good	30.614 \| good	0.338 \| good
2025-12-28T14:00:00.000Z	58 \| moderate	13.09 \| fine	60.318 \| fine	7.637 \| good	0.409 \| good	28.068 \| good	0.536 \| good
2025-12-28T15:00:00.000Z	54 \| moderate	11.346 \| good	16.021 \| good	8.097 \| good	0.36 \| good	22.165 \| good	0.318 \| good
2025-12-28T16:00:00.000Z	52 \| moderate	9.957 \| good	15.502 \| good	10.509 \| good	0.275 \| good	17.676 \| good	0.225 \| good
2025-12-28T17:00:00.000Z	49 \| good	9.411 \| good	17.663 \| good	14.001 \| good	0.273 \| good	16.103 \| good	0.214 \| good
2025-12-28T18:00:00.000Z	49 \| good	9.43 \| good	18.724 \| good	16.716 \| good	0.286 \| good	13.5 \| good	0.216 \| good
2025-12-28T19:00:00.000Z	52 \| moderate	9.971 \| good	22.049 \| good	20.154 \| good	0.278 \| good	15.554 \| good	0.237 \| good
2025-12-28T20:00:00.000Z	52 \| moderate	10.234 \| good	24.07 \| good	21.488 \| good	0.287 \| good	16.557 \| good	0.25 \| good
2025-12-28T21:00:00.000Z	52 \| moderate	10.09 \| good	22.794 \| good	20.083 \| good	0.279 \| good	16.292 \| good	0.246 \| good
2025-12-28T22:00:00.000Z	54 \| moderate	11.108 \| good	21.118 \| good	20.875 \| good	0.209 \| good	24.242 \| good	0.348 \| good
2025-12-28T23:00:00.000Z	54 \| moderate	11.109 \| good	18.164 \| good	19.048 \| good	0.2 \| good	22.95 \| good	0.303 \| good
2025-12-29T00:00:00.000Z	81 \| moderate	25.471 \| fine	110.973 \| fine	2.356 \| good	2.904 \| good	30.647 \| good	0.309 \| good
2025-12-29T01:00:00.000Z	77 \| moderate	23.265 \| fine	102.274 \| fine	2.307 \| good	2.511 \| good	28.621 \| good	0.288 \| good
2025-12-29T02:00:00.000Z	67 \| moderate	18.012 \| fine	79.747 \| fine	7.589 \| good	2.117 \| good	26.595 \| good	0.267 \| good
2025-12-29T03:00:00.000Z	56 \| moderate	11.82 \| good	52.855 \| good	17.238 \| good	1.724 \| good	24.569 \| good	0.247 \| good
2025-12-29T04:00:00.000Z	49 \| good	9.484 \| good	42.365 \| good	22.699 \| good	1.331 \| good	19.241 \| good	0.219 \| good
2025-12-29T05:00:00.000Z	38 \| good	6.911 \| good	30.463 \| good	28.052 \| good	0.938 \| good	13.913 \| good	0.192 \| good
2025-12-29T06:00:00.000Z	28 \| good	4.082 \| good	17.968 \| good	30.142 \| good	0.545 \| good	8.585 \| good	0.165 \| good
2025-12-29T07:00:00.000Z	26 \| good	3.831 \| good	16.694 \| good	28.326 \| good	0.548 \| good	6.74 \| good	0.155 \| good
2025-12-29T08:00:00.000Z	24 \| good	4.378 \| good	18.893 \| good	26.357 \| good	0.551 \| good	4.896 \| good	0.146 \| good
2025-12-29T09:00:00.000Z	22 \| good	4.321 \| good	18.778 \| good	19.143 \| good	0.554 \| good	3.052 \| good	0.136 \| good
2025-12-29T10:00:00.000Z	16 \| good	3.457 \| good	14.918 \| good	16.785 \| good	0.734 \| good	4.149 \| good	0.145 \| good
2025-12-29T11:00:00.000Z	16 \| good	3.32 \| good	14.262 \| good	17.217 \| good	0.914 \| good	5.246 \| good	0.154 \| good
2025-12-29T12:00:00.000Z	27 \| good	5.07 \| good	21.957 \| good	16.66 \| good	1.094 \| good	6.342 \| good	0.164 \| good
2025-12-29T13:00:00.000Z	38 \| good	7.028 \| good	31.17 \| good	14.151 \| good	1.176 \| good	7.459 \| good	0.173 \| good
2025-12-29T14:00:00.000Z	44 \| good	7.674 \| good	33.795 \| good	14.185 \| good	1.258 \| good	8.576 \| good	0.183 \| good
2025-12-29T15:00:00.000Z	49 \| good	8.73 \| good	38.351 \| good	11.111 \| good	1.341 \| good	9.693 \| good	0.193 \| good
2025-12-29T16:00:00.000Z	49 \| good	8.997 \| good	40.372 \| good	13.081 \| good	1.352 \| good	10.057 \| good	0.192 \| good
2025-12-29T17:00:00.000Z	49 \| good	8.809 \| good	38.604 \| good	8.677 \| good	1.363 \| good	10.422 \| good	0.192 \| good
2025-12-29T18:00:00.000Z	52 \| moderate	10.286 \| good	45.39 \| good	3.731 \| good	1.375 \| good	10.787 \| good	0.192 \| good
2025-12-29T19:00:00.000Z	52 \| moderate	9.935 \| good	43.872 \| good	11.102 \| good	1.495 \| good	9.946 \| good	0.187 \| good
2025-12-29T20:00:00.000Z	28 \| good	4.914 \| good	21.29 \| good	30.381 \| good	1.615 \| good	9.106 \| good	0.182 \| good
2025-12-29T21:00:00.000Z	33 \| good	2.353 \| good	9.816 \| good	36.354 \| good	1.735 \| good	8.265 \| good	0.177 \| good
2025-12-29T22:00:00.000Z	32 \| good	4.154 \| good	18.143 \| good	34.528 \| good	1.63 \| good	6.651 \| good	0.176 \| good
2025-12-29T23:00:00.000Z	25 \| good	3.731 \| good	16.319 \| good	27.318 \| good	1.525 \| good	5.036 \| good	0.176 \| good
2025-12-30T00:00:00.000Z	20 \| good	2.445 \| good	10.02 \| good	22.123 \| good	1.42 \| good	3.422 \| good	0.176 \| good
2025-12-30T01:00:00.000Z	19 \| good	1.82 \| good	7.587 \| good	20.408 \| good	1.224 \| good	3.373 \| good	0.173 \| good
2025-12-30T02:00:00.000Z	18 \| good	1.481 \| good	6.088 \| good	18.524 \| good	1.028 \| good	3.324 \| good	0.169 \| good
2025-12-30T03:00:00.000Z	18 \| good	1.672 \| good	7.088 \| good	18.654 \| good	0.832 \| good	3.275 \| good	0.166 \| good
2025-12-30T04:00:00.000Z	18 \| good	1.459 \| good	5.968 \| good	18.907 \| good	0.712 \| good	2.785 \| good	0.16 \| good
2025-12-30T05:00:00.000Z	24 \| good	1.234 \| good	5.003 \| good	25.758 \| good	0.592 \| good	2.295 \| good	0.153 \| good
2025-12-30T06:00:00.000Z	29 \| good	0.926 \| good	3.653 \| good	31.228 \| good	0.472 \| good	1.805 \| good	0.147 \| good
2025-12-30T07:00:00.000Z	29 \| good	0.822 \| good	3.032 \| good	31.361 \| good	0.407 \| good	1.548 \| good	0.144 \| good
2025-12-30T08:00:00.000Z	29 \| good	1.066 \| good	4.141 \| good	30.599 \| good	0.343 \| good	1.29 \| good	0.141 \| good
2025-12-30T09:00:00.000Z	27 \| good	0.753 \| good	2.882 \| good	28.951 \| good	0.279 \| good	1.033 \| good	0.138 \| good
2025-12-30T10:00:00.000Z	26 \| good	0.897 \| good	3.512 \| good	27.695 \| good	0.307 \| good	1.292 \| good	0.141 \| good
2025-12-30T11:00:00.000Z	30 \| good	0.158 \| good	0.144 \| good	31.541 \| good	0.336 \| good	1.552 \| good	0.144 \| good
2025-12-30T12:00:00.000Z	31 \| good	0.103 \| good	0 \| good	33.368 \| good	0.364 \| good	1.812 \| good	0.147 \| good
2025-12-30T13:00:00.000Z	32 \| good	0.131 \| good	0.027 \| good	35.1 \| good	0.365 \| good	1.739 \| good	0.146 \| good
2025-12-30T14:00:00.000Z	33 \| good	0.143 \| good	0.124 \| good	35.821 \| good	0.366 \| good	1.667 \| good	0.146 \| good
2025-12-30T15:00:00.000Z	33 \| good	0.147 \| good	0.212 \| good	36.13 \| good	0.367 \| good	1.594 \| good	0.146 \| good
2025-12-30T16:00:00.000Z	33 \| good	0.233 \| good	0.884 \| good	35.685 \| good	0.355 \| good	1.484 \| good	0.144 \| good
2025-12-30T17:00:00.000Z	33 \| good	0.285 \| good	0.913 \| good	36.068 \| good	0.342 \| good	1.374 \| good	0.141 \| good
2025-12-30T18:00:00.000Z	33 \| good	0.877 \| good	3.459 \| good	36.402 \| good	0.329 \| good	1.263 \| good	0.139 \| good
2025-12-30T19:00:00.000Z	36 \| good	1.294 \| good	5 \| good	38.513 \| good	0.368 \| good	1.54 \| good	0.138 \| good
2025-12-30T20:00:00.000Z	37 \| good	1.01 \| good	4 \| good	40.162 \| good	0.406 \| good	1.816 \| good	0.137 \| good
2025-12-30T21:00:00.000Z	35 \| good	0.519 \| good	2 \| good	37.565 \| good	0.444 \| good	2.093 \| good	0.136 \| good
2025-12-30T22:00:00.000Z	32 \| good	0.876 \| good	3.432 \| good	35.234 \| good	0.512 \| good	2.461 \| good	0.137 \| good
2025-12-30T23:00:00.000Z	31 \| good	0.634 \| good	2.203 \| good	34.196 \| good	0.579 \| good	2.83 \| good	0.139 \| good

Real-time air quality index in New Haven, Connecticut today

Common air pollutants in New Haven, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live New Haven, Connecticut air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

West Haven, Connecticut

East Haven, Connecticut

Hamden, Connecticut

Orange, Connecticut

Branford, Connecticut

North Haven, Connecticut

How accurate is Connecticut, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in New Haven, Connecticut?

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

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

What are the current PM10 levels at New Haven, Connecticut?

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

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

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

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

What are the current PM₁₀ levels at New Haven, Connecticut?

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

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

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