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

The current PM10 levels in New Haven, Connecticut are 13.067 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 0.303 ppb.

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

The current ozone (O3) levels at New Haven, Connecticut is 44.093 ppm.

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

The current nitrogen dioxide (NO2) levels at New Haven, Connecticut is 11.572 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 5.212 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)

Good

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)

5.21 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.07 μg/m³

155

255

425

605+

Ozone (O₃)

44.09 ppb

201

201+

Sulfur Dioxide (SO₂)

0.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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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
2026-03-28T00:00:00.000Z	32 \| good	2.313 \| good	4.156 \| good	35.164 \| good	0.118 \| good	8.041 \| good	0.2 \| good
2026-03-28T01:00:00.000Z	32 \| good	2.515 \| good	5.114 \| good	35.134 \| good	0.151 \| good	10.903 \| good	0.2 \| good
2026-03-28T02:00:00.000Z	30 \| good	2.82 \| good	6.136 \| good	32.214 \| good	0.137 \| good	13.771 \| good	0.2 \| good
2026-03-28T03:00:00.000Z	25 \| good	3.705 \| good	8.101 \| good	16.535 \| good	0.101 \| good	27.038 \| good	0.299 \| good
2026-03-28T04:00:00.000Z	30 \| good	4.309 \| good	8.135 \| good	16.614 \| good	0.102 \| good	31.595 \| good	0.298 \| good
2026-03-28T05:00:00.000Z	27 \| good	4.6 \| good	8.078 \| good	12.657 \| good	0.101 \| good	25.563 \| good	0.298 \| good
2026-03-28T06:00:00.000Z	27 \| good	5.051 \| good	13.089 \| good	28.337 \| good	0.155 \| good	12.956 \| good	0.216 \| good
2026-03-28T07:00:00.000Z	27 \| good	4.6 \| good	12.193 \| good	28.694 \| good	0.139 \| good	6.776 \| good	0.188 \| good
2026-03-28T08:00:00.000Z	32 \| good	3.906 \| good	8.045 \| good	34.956 \| good	0.119 \| good	6.458 \| good	0.2 \| good
2026-03-28T09:00:00.000Z	32 \| good	3.712 \| good	7.104 \| good	34.986 \| good	0.119 \| good	6.818 \| good	0.2 \| good
2026-03-28T10:00:00.000Z	31 \| good	3.81 \| good	7.11 \| good	34.025 \| good	0.101 \| good	9.65 \| good	0.199 \| good
2026-03-28T11:00:00.000Z	28 \| good	3.811 \| good	7.138 \| good	30.256 \| good	0.1 \| good	7.898 \| good	0.101 \| good
2026-03-28T12:00:00.000Z	29 \| good	3.912 \| good	8.134 \| good	31.205 \| good	0.102 \| good	7.893 \| good	0.102 \| good
2026-03-28T13:00:00.000Z	34 \| good	4.241 \| good	10.36 \| good	36.676 \| good	0.206 \| good	3.5 \| good	0.213 \| good
2026-03-28T14:00:00.000Z	31 \| good	4.101 \| good	12.033 \| good	34.088 \| good	0.102 \| good	4.545 \| good	0.2 \| good
2026-03-28T15:00:00.000Z	32 \| good	4.003 \| good	10.062 \| good	35.093 \| good	0.102 \| good	3.263 \| good	0.199 \| good
2026-03-28T16:00:00.000Z	35 \| good	3.907 \| good	9.118 \| good	38.045 \| good	0.102 \| good	2.77 \| good	0.101 \| good
2026-03-28T17:00:00.000Z	36 \| good	4.098 \| good	15.911 \| good	39.086 \| good	0.197 \| good	2.864 \| good	0.101 \| good
2026-03-28T18:00:00.000Z	37 \| good	4.193 \| good	17.746 \| good	40.07 \| good	0.157 \| good	2.375 \| good	0.102 \| good
2026-03-28T19:00:00.000Z	38 \| good	4.191 \| good	17.702 \| good	41.031 \| good	0.167 \| good	2.673 \| good	0.102 \| good
2026-03-28T20:00:00.000Z	37 \| good	3.996 \| good	12.888 \| good	40.08 \| good	0.148 \| good	2.772 \| good	0.102 \| good
2026-03-28T21:00:00.000Z	36 \| good	3.892 \| good	10 \| good	39.103 \| good	0.1 \| good	3.457 \| good	0.2 \| good
2026-03-28T22:00:00.000Z	35 \| good	3.493 \| good	9.008 \| good	38.145 \| good	0.1 \| good	2.586 \| good	0.199 \| good
2026-03-28T23:00:00.000Z	36 \| good	3.202 \| good	9.055 \| good	39.117 \| good	0.129 \| good	3.178 \| good	0.102 \| good
2026-03-29T00:00:00.000Z	36 \| good	3.108 \| good	7.103 \| good	39.117 \| good	0.198 \| good	3.588 \| good	0.102 \| good
2026-03-29T01:00:00.000Z	35 \| good	3.218 \| good	7.144 \| good	38.1 \| good	0.237 \| good	5.514 \| good	0.201 \| good
2026-03-29T02:00:00.000Z	33 \| good	3.405 \| good	7.116 \| good	36.098 \| good	0.103 \| good	8.85 \| good	0.201 \| good
2026-03-29T03:00:00.000Z	22 \| good	3.974 \| good	17.216 \| good	21.086 \| good	0.759 \| good	6.663 \| good	0.227 \| good
2026-03-29T04:00:00.000Z	25 \| good	4.102 \| good	8.082 \| good	27.345 \| good	0.102 \| good	23.757 \| good	0.299 \| good
2026-03-29T05:00:00.000Z	25 \| good	4.32 \| good	8.086 \| good	16.495 \| good	0.202 \| good	27.195 \| good	0.201 \| good
2026-03-29T06:00:00.000Z	25 \| good	4.323 \| good	8.114 \| good	16.511 \| good	0.202 \| good	27.237 \| good	0.201 \| good
2026-03-29T07:00:00.000Z	33 \| good	6.185 \| good	16.414 \| good	15.977 \| good	0.459 \| good	18.791 \| good	0.27 \| good
2026-03-29T08:00:00.000Z	28 \| good	5.344 \| good	9.263 \| good	6.781 \| good	0.204 \| good	29.679 \| good	0.3 \| good
2026-03-29T09:00:00.000Z	35 \| good	6.148 \| good	11.126 \| good	10.669 \| good	0.405 \| good	36.982 \| good	0.398 \| good
2026-03-29T10:00:00.000Z	33 \| good	6.316 \| good	11.086 \| good	6.625 \| good	0.401 \| good	34.798 \| good	0.397 \| good
2026-03-29T11:00:00.000Z	33 \| good	6.431 \| good	11.339 \| good	4.529 \| good	0.502 \| good	33.805 \| good	0.496 \| good
2026-03-29T12:00:00.000Z	38 \| good	6.526 \| good	13.186 \| good	4.522 \| good	0.503 \| good	34.471 \| good	0.399 \| good
2026-03-29T13:00:00.000Z	38 \| good	7.432 \| good	27.458 \| good	11.728 \| good	0.471 \| good	15.775 \| good	0.396 \| good
2026-03-29T14:00:00.000Z	33 \| good	6.008 \| good	12.376 \| good	12.286 \| good	0.498 \| good	14.667 \| good	0.103 \| good
2026-03-29T15:00:00.000Z	27 \| good	5.102 \| good	10.302 \| good	27.17 \| good	0.402 \| good	8.959 \| good	0.103 \| good
2026-03-29T16:00:00.000Z	27 \| good	5.494 \| good	18.084 \| good	24.053 \| good	0.33 \| good	3.921 \| good	0.214 \| good
2026-03-29T17:00:00.000Z	36 \| good	5.347 \| good	24.718 \| good	39.42 \| good	0.282 \| good	3.061 \| good	0.273 \| good
2026-03-29T18:00:00.000Z	35 \| good	4.712 \| good	10.993 \| good	38.065 \| good	0.301 \| good	7.121 \| good	0.104 \| good
2026-03-29T19:00:00.000Z	35 \| good	4.715 \| good	11.994 \| good	38.201 \| good	0.205 \| good	5.743 \| good	0.104 \| good
2026-03-29T20:00:00.000Z	39 \| good	4.619 \| good	12.013 \| good	42.144 \| good	0.205 \| good	6.41 \| good	0.104 \| good
2026-03-29T21:00:00.000Z	40 \| good	4.819 \| good	11.144 \| good	43.112 \| good	0.3 \| good	5.351 \| good	0.104 \| good
2026-03-29T22:00:00.000Z	41 \| good	5.212 \| good	13.067 \| good	44.093 \| good	0.303 \| good	11.572 \| good	0.103 \| good
2026-03-29T23:00:00.000Z	37 \| good	5.498 \| good	14.083 \| good	40.235 \| good	0.4 \| good	14.175 \| good	0.103 \| good
2026-03-29T23:00:00.000Z	41 \| good	5.212 \| good	13.067 \| good	44.093 \| good	0.303 \| good	11.572 \| good	0.103 \| good
2026-03-30T00:00:00.000Z	33 \| good	6.248 \| good	27.944 \| good	36.307 \| good	1.556 \| good	7.104 \| good	0.2 \| good
2026-03-30T01:00:00.000Z	35 \| good	6.165 \| good	27.556 \| good	38.473 \| good	1.414 \| good	6.641 \| good	0.192 \| good
2026-03-30T02:00:00.000Z	37 \| good	6.154 \| good	27.124 \| good	39.7 \| good	1.273 \| good	6.178 \| good	0.185 \| good
2026-03-30T03:00:00.000Z	38 \| good	6.873 \| good	30.27 \| good	36.801 \| good	1.131 \| good	5.715 \| good	0.177 \| good
2026-03-30T04:00:00.000Z	44 \| good	8.329 \| good	36.599 \| good	35.012 \| good	1.056 \| good	5.05 \| good	0.169 \| good
2026-03-30T05:00:00.000Z	49 \| good	8.668 \| good	37.857 \| good	33.144 \| good	0.981 \| good	4.384 \| good	0.162 \| good
2026-03-30T06:00:00.000Z	44 \| good	8.488 \| good	37.405 \| good	33.712 \| good	0.906 \| good	3.718 \| good	0.154 \| good
2026-03-30T07:00:00.000Z	31 \| good	5.18 \| good	22.249 \| good	33.976 \| good	0.922 \| good	3.414 \| good	0.158 \| good
2026-03-30T08:00:00.000Z	33 \| good	5.628 \| good	24.397 \| good	27.893 \| good	0.938 \| good	3.11 \| good	0.161 \| good
2026-03-30T09:00:00.000Z	23 \| good	4.484 \| good	19.443 \| good	25.306 \| good	0.953 \| good	2.805 \| good	0.165 \| good
2026-03-30T10:00:00.000Z	22 \| good	4.204 \| good	18.549 \| good	19.358 \| good	1.084 \| good	3.562 \| good	0.178 \| good
2026-03-30T11:00:00.000Z	27 \| good	4.772 \| good	20.659 \| good	15.859 \| good	1.214 \| good	4.318 \| good	0.191 \| good
2026-03-30T12:00:00.000Z	38 \| good	6.677 \| good	29.809 \| good	16.207 \| good	1.344 \| good	5.074 \| good	0.204 \| good
2026-03-30T13:00:00.000Z	44 \| good	8.35 \| good	36.752 \| good	21.801 \| good	1.529 \| good	5.562 \| good	0.204 \| good
2026-03-30T14:00:00.000Z	44 \| good	7.888 \| good	34.447 \| good	19.942 \| good	1.715 \| good	6.05 \| good	0.204 \| good
2026-03-30T15:00:00.000Z	44 \| good	7.526 \| good	33.18 \| good	20.122 \| good	1.9 \| good	6.538 \| good	0.205 \| good
2026-03-30T16:00:00.000Z	38 \| good	7.092 \| good	31.421 \| good	16.222 \| good	2.014 \| good	6.114 \| good	0.196 \| good
2026-03-30T17:00:00.000Z	44 \| good	7.523 \| good	32.949 \| good	17.501 \| good	2.127 \| good	5.69 \| good	0.188 \| good
2026-03-30T18:00:00.000Z	58 \| moderate	12.683 \| fine	57.381 \| fine	21.065 \| good	2.241 \| good	5.266 \| good	0.18 \| good
2026-03-30T19:00:00.000Z	54 \| moderate	10.847 \| good	47.909 \| good	21.247 \| good	2.184 \| good	5.328 \| good	0.178 \| good
2026-03-30T20:00:00.000Z	52 \| moderate	9.595 \| good	42.654 \| good	23.977 \| good	2.128 \| good	5.39 \| good	0.177 \| good
2026-03-30T21:00:00.000Z	52 \| moderate	9.906 \| good	44.017 \| good	28.53 \| good	2.071 \| good	5.452 \| good	0.176 \| good
2026-03-30T22:00:00.000Z	49 \| good	9.475 \| good	41.994 \| good	21.55 \| good	2.117 \| good	7.121 \| good	0.184 \| good
2026-03-30T23:00:00.000Z	58 \| moderate	12.569 \| fine	56.662 \| fine	22.659 \| good	2.163 \| good	8.791 \| good	0.192 \| good
2026-03-31T00:00:00.000Z	62 \| moderate	14.558 \| fine	65.273 \| fine	15.916 \| good	2.209 \| good	10.461 \| good	0.2 \| good
2026-03-31T01:00:00.000Z	62 \| moderate	15.243 \| fine	68.657 \| fine	17.729 \| good	2.266 \| good	10.603 \| good	0.201 \| good
2026-03-31T02:00:00.000Z	69 \| moderate	19.312 \| fine	85.536 \| fine	13.72 \| good	2.323 \| good	10.745 \| good	0.202 \| good
2026-03-31T03:00:00.000Z	66 \| moderate	16.752 \| fine	73.974 \| fine	15.096 \| good	2.38 \| good	10.887 \| good	0.203 \| good
2026-03-31T04:00:00.000Z	66 \| moderate	17.096 \| fine	76.212 \| fine	16.969 \| good	2.24 \| good	9.939 \| good	0.196 \| good
2026-03-31T05:00:00.000Z	66 \| moderate	16.704 \| fine	74.166 \| fine	16.737 \| good	2.1 \| good	8.991 \| good	0.19 \| good
2026-03-31T06:00:00.000Z	52 \| moderate	9.943 \| good	10.593 \| good	38.471 \| good	1.962 \| good	8.058 \| good	0.183 \| good
2026-03-31T07:00:00.000Z	64 \| moderate	15.612 \| fine	69.277 \| fine	16.065 \| good	1.87 \| good	7.286 \| good	0.176 \| good
2026-03-31T08:00:00.000Z	64 \| moderate	16.282 \| fine	72.738 \| fine	11.038 \| good	1.78 \| good	6.529 \| good	0.168 \| good
2026-03-31T09:00:00.000Z	60 \| moderate	13.664 \| fine	61.673 \| fine	7.958 \| good	1.69 \| good	5.772 \| good	0.161 \| good
2026-03-31T10:00:00.000Z	44 \| good	7.926 \| good	34.741 \| good	15.265 \| good	1.643 \| good	6.411 \| good	0.162 \| good
2026-03-31T11:00:00.000Z	33 \| good	6.239 \| good	27.589 \| good	14.397 \| good	1.597 \| good	7.049 \| good	0.163 \| good
2026-03-31T12:00:00.000Z	44 \| good	8.396 \| good	8.944 \| good	35.564 \| good	1.554 \| good	7.721 \| good	0.164 \| good
2026-03-31T13:00:00.000Z	49 \| good	8.622 \| good	9.16 \| good	34.947 \| good	1.651 \| good	7.921 \| good	0.172 \| good
2026-03-31T14:00:00.000Z	49 \| good	8.952 \| good	9.417 \| good	34.329 \| good	1.749 \| good	8.121 \| good	0.179 \| good
2026-03-31T15:00:00.000Z	49 \| good	9.344 \| good	9.843 \| good	33.712 \| good	1.846 \| good	8.321 \| good	0.187 \| good
2026-03-31T16:00:00.000Z	52 \| moderate	9.5 \| good	10.057 \| good	36.819 \| good	1.819 \| good	7.53 \| good	0.183 \| good
2026-03-31T17:00:00.000Z	58 \| moderate	12.699 \| fine	57.037 \| fine	17.124 \| good	1.787 \| good	6.696 \| good	0.179 \| good
2026-03-31T18:00:00.000Z	49 \| good	9.443 \| good	10.134 \| good	43.031 \| good	1.765 \| good	5.947 \| good	0.175 \| good
2026-03-31T19:00:00.000Z	49 \| good	9.419 \| good	10.264 \| good	44.287 \| good	1.686 \| good	6.015 \| good	0.174 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	9.528 \| good	10.486 \| good	45.543 \| good	1.606 \| good	6.083 \| good	0.172 \| good
2026-03-31T21:00:00.000Z	52 \| moderate	9.536 \| good	10.54 \| good	46.799 \| good	1.526 \| good	6.152 \| good	0.171 \| good
2026-03-31T22:00:00.000Z	49 \| good	9.241 \| good	10.237 \| good	46.072 \| good	1.467 \| good	7.015 \| good	0.173 \| good
2026-03-31T23:00:00.000Z	49 \| good	8.821 \| good	9.904 \| good	45.345 \| good	1.407 \| good	7.878 \| good	0.176 \| good

New Haven

Empower business decisions with accurate air quality data

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

0.12ppm

How accurate is Connecticut, USA air quality data?

Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for 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 10:00:00 on 2026-03-29.

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

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

The real-time air quality index in New Haven, Connecticut is 41, currently categorized as Good.

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

The most common pollutant in New Haven, Connecticut is O3.

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 5.212 μg/m³.

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

The current PM₁₀ levels in New Haven, Connecticut are 13.067 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 0.103 ppm.

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

The current sulfur dioxide (SO₂) levels in New Haven, Connecticut are 0.303 ppb.

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

The current ozone (O₃) levels at New Haven, Connecticut is 44.093 ppm.

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

The current nitrogen dioxide (NO₂) levels at New Haven, Connecticut is 11.572 ppb.

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