What are the current PM10 levels at New Hampshire, USA?

The current PM10 levels in New Hampshire, USA are 7.581 μg/m3.

What are the current sulfur dioxide (SO2) levels at New Hampshire, USA?

The current sulfur dioxide (SO2) levels in New Hampshire, USA are 0.404 ppb.

What are the current ozone (O3) levels at New Hampshire, USA?

The current ozone (O3) levels at New Hampshire, USA is 22.866 ppm.

What are the current nitrogen dioxide (NO2) levels at New Hampshire, USA?

The current nitrogen dioxide (NO2) levels at New Hampshire, USA is 4.977 ppb.

Real-time air quality index in New Hampshire, USA today

Name: Live air pollution levels in New Hampshire, USA today
Creator: Ambee

Stay updated with real-time air quality in New Hampshire, USA 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 Hampshire, USA

Last updated: ... (Local time)

Common air pollutants in New Hampshire, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.94 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

11.38 μg/m³

155

255

425

605+

Ozone (O₃)

21.35 ppb

201

201+

Sulfur Dioxide (SO₂)

0.63 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.40 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

New Hampshire, USA

Get Live Pollen Counts

New Hampshire, USA

Scroll To Air Quality Map

Track live New Hampshire, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-08-29T04:00:00.000Z	38 \| good	6.693 \| good	30 \| good	35.483 \| good	1.122 \| good	3.988 \| good	0.194 \| good
2025-08-29T05:00:00.000Z	32 \| good	3.528 \| good	18.015 \| good	34.977 \| good	0.341 \| good	8.169 \| good	0.162 \| good
2025-08-29T06:00:00.000Z	30 \| good	3.644 \| good	14.645 \| good	31.994 \| good	0.334 \| good	7.997 \| good	0.162 \| good
2025-08-29T07:00:00.000Z	27 \| good	3.621 \| good	9.713 \| good	28.676 \| good	0.325 \| good	7.203 \| good	0.162 \| good
2025-08-29T08:00:00.000Z	26 \| good	3.783 \| good	12.174 \| good	28.227 \| good	0.342 \| good	7.196 \| good	0.161 \| good
2025-08-29T09:00:00.000Z	26 \| good	3.818 \| good	18.859 \| good	28.236 \| good	0.334 \| good	6.848 \| good	0.161 \| good
2025-08-29T10:00:00.000Z	24 \| good	3.8 \| good	15.822 \| good	26.237 \| good	0.366 \| good	7.163 \| good	0.161 \| good
2025-08-29T11:00:00.000Z	24 \| good	3.949 \| good	15.165 \| good	26.263 \| good	0.337 \| good	7.44 \| good	0.161 \| good
2025-08-29T12:00:00.000Z	22 \| good	4.115 \| good	17.187 \| good	12.753 \| good	0.348 \| good	7.773 \| good	0.174 \| good
2025-08-29T13:00:00.000Z	27 \| good	4.564 \| good	19.782 \| good	26.172 \| good	0.342 \| good	9.678 \| good	0.188 \| good
2025-08-29T14:00:00.000Z	27 \| good	4.924 \| good	16.239 \| good	28.212 \| good	0.397 \| good	8.908 \| good	0.201 \| good
2025-08-29T15:00:00.000Z	33 \| good	4.473 \| good	11.715 \| good	35.855 \| good	0.291 \| good	14.428 \| good	0.187 \| good
2025-08-29T16:00:00.000Z	33 \| good	4.271 \| good	13.17 \| good	36.016 \| good	0.286 \| good	8.825 \| good	0.161 \| good
2025-08-29T17:00:00.000Z	33 \| good	5.151 \| good	15.943 \| good	35.841 \| good	0.3 \| good	9.233 \| good	0.161 \| good
2025-08-29T18:00:00.000Z	34 \| good	3.968 \| good	17.954 \| good	36.58 \| good	0.293 \| good	7.263 \| good	0.175 \| good
2025-08-29T19:00:00.000Z	41 \| good	4.251 \| good	14.019 \| good	44.466 \| good	0.333 \| good	8.15 \| good	0.175 \| good
2025-08-29T20:00:00.000Z	36 \| good	4.408 \| good	14.915 \| good	38.536 \| good	0.32 \| good	7.381 \| good	0.188 \| good
2025-08-29T21:00:00.000Z	39 \| good	4.24 \| good	14.941 \| good	41.923 \| good	0.268 \| good	8.954 \| good	0.188 \| good
2025-08-29T22:00:00.000Z	39 \| good	3.977 \| good	16.75 \| good	41.575 \| good	0.256 \| good	9.5 \| good	0.184 \| good
2025-08-29T23:00:00.000Z	37 \| good	3.747 \| good	13.757 \| good	39.604 \| good	0.33 \| good	6.299 \| good	0.202 \| good
2025-08-30T00:00:00.000Z	35 \| good	3.661 \| good	7.174 \| good	37.952 \| good	0.259 \| good	11.043 \| good	0.183 \| good
2025-08-30T01:00:00.000Z	31 \| good	3.398 \| good	6.708 \| good	32.724 \| good	0.27 \| good	5.841 \| good	0.201 \| good
2025-08-30T02:00:00.000Z	27 \| good	3.033 \| good	11.637 \| good	29.006 \| good	0.331 \| good	5.985 \| good	0.214 \| good
2025-08-30T03:00:00.000Z	14 \| good	2.391 \| good	10.086 \| good	14.872 \| good	0.26 \| good	10.624 \| good	0.289 \| good
2025-08-30T04:00:00.000Z	19 \| good	3.249 \| good	10.985 \| good	20.141 \| good	0.303 \| good	3.951 \| good	0.201 \| good
2025-08-30T05:00:00.000Z	17 \| good	3.189 \| good	7.129 \| good	18.041 \| good	0.272 \| good	4.977 \| good	0.188 \| good
2025-08-30T06:00:00.000Z	16 \| good	3.108 \| good	8.822 \| good	15.737 \| good	0.315 \| good	3.071 \| good	0.188 \| good
2025-08-30T07:00:00.000Z	16 \| good	3.007 \| good	13.865 \| good	12.715 \| good	0.233 \| good	2.553 \| good	0.174 \| good
2025-08-30T08:00:00.000Z	16 \| good	3.48 \| good	16.189 \| good	11.432 \| good	0.241 \| good	3.195 \| good	0.174 \| good
2025-08-30T09:00:00.000Z	16 \| good	3.353 \| good	14.476 \| good	11.978 \| good	0.229 \| good	4.534 \| good	0.113 \| good
2025-08-30T10:00:00.000Z	16 \| good	3.143 \| good	15.028 \| good	12.463 \| good	0.332 \| good	2.552 \| good	0.149 \| good
2025-08-30T11:00:00.000Z	16 \| good	2.9 \| good	10.457 \| good	12.487 \| good	0.324 \| good	2.261 \| good	0.162 \| good
2025-08-30T12:00:00.000Z	16 \| good	2.886 \| good	9.864 \| good	10.596 \| good	0.251 \| good	4.261 \| good	0.162 \| good
2025-08-30T13:00:00.000Z	16 \| good	2.532 \| good	9.684 \| good	11.609 \| good	0.249 \| good	2.712 \| good	0.175 \| good
2025-08-30T14:00:00.000Z	14 \| good	2.325 \| good	11.391 \| good	15.301 \| good	0.329 \| good	1.702 \| good	0.162 \| good
2025-08-30T15:00:00.000Z	17 \| good	2.185 \| good	10.689 \| good	18.168 \| good	0.325 \| good	1.208 \| good	0.162 \| good
2025-08-30T16:00:00.000Z	19 \| good	2.007 \| good	8.323 \| good	21.04 \| good	0.267 \| good	1.027 \| good	0.149 \| good
2025-08-30T17:00:00.000Z	22 \| good	2.223 \| good	6.102 \| good	23.863 \| good	0.268 \| good	2.41 \| good	0.149 \| good
2025-08-30T18:00:00.000Z	25 \| good	1.998 \| good	7.352 \| good	26.813 \| good	0.245 \| good	1.542 \| good	0.149 \| good
2025-08-30T19:00:00.000Z	26 \| good	2.002 \| good	8.847 \| good	27.888 \| good	0.325 \| good	1.132 \| good	0.149 \| good
2025-08-30T20:00:00.000Z	24 \| good	1.931 \| good	7.046 \| good	25.987 \| good	0.325 \| good	1.95 \| good	0.149 \| good
2025-08-30T21:00:00.000Z	24 \| good	1.902 \| good	4.99 \| good	26.036 \| good	0.276 \| good	2.379 \| good	0.149 \| good
2025-08-30T22:00:00.000Z	23 \| good	2.174 \| good	6.784 \| good	25.136 \| good	0.259 \| good	1.525 \| good	0.149 \| good
2025-08-30T23:00:00.000Z	23 \| good	2.29 \| good	7.171 \| good	25.324 \| good	0.327 \| good	2.414 \| good	0.162 \| good
2025-08-31T00:00:00.000Z	23 \| good	2.103 \| good	5.567 \| good	24.787 \| good	0.435 \| good	3.581 \| good	0.175 \| good
2025-08-31T01:00:00.000Z	22 \| good	2.237 \| good	5.345 \| good	24.049 \| good	0.348 \| good	4.896 \| good	0.175 \| good
2025-08-31T02:00:00.000Z	21 \| good	2.624 \| good	11.028 \| good	22.74 \| good	0.435 \| good	5.947 \| good	0.175 \| good
2025-08-31T03:00:00.000Z	19 \| good	2.937 \| good	11.377 \| good	21.352 \| good	0.63 \| good	6.401 \| good	0.183 \| good
2025-08-31T03:00:00.000Z	11 \| good	1.473 \| good	5.892 \| good	12.452 \| good	0.117 \| good	3.349 \| good	0.163 \| good
2025-08-31T04:00:00.000Z	11 \| good	1.621 \| good	6.684 \| good	9.447 \| good	0.119 \| good	2.863 \| good	0.159 \| good
2025-08-31T05:00:00.000Z	11 \| good	1.792 \| good	7.653 \| good	10.461 \| good	0.121 \| good	2.377 \| good	0.155 \| good
2025-08-31T06:00:00.000Z	11 \| good	1.68 \| good	6.973 \| good	12.489 \| good	0.123 \| good	1.891 \| good	0.151 \| good
2025-08-31T07:00:00.000Z	14 \| good	2.009 \| good	8.031 \| good	15.065 \| good	0.131 \| good	1.641 \| good	0.149 \| good
2025-08-31T08:00:00.000Z	12 \| good	2.067 \| good	8.166 \| good	13.067 \| good	0.14 \| good	1.391 \| good	0.147 \| good
2025-08-31T09:00:00.000Z	11 \| good	1.795 \| good	7.653 \| good	7.027 \| good	0.148 \| good	1.142 \| good	0.145 \| good
2025-08-31T10:00:00.000Z	11 \| good	2.009 \| good	8.086 \| good	4.74 \| good	0.15 \| good	1.183 \| good	0.148 \| good
2025-08-31T11:00:00.000Z	11 \| good	2.232 \| good	9.108 \| good	10.628 \| good	0.152 \| good	1.225 \| good	0.151 \| good
2025-08-31T12:00:00.000Z	16 \| good	2.824 \| good	11.726 \| good	15.181 \| good	0.154 \| good	1.267 \| good	0.154 \| good
2025-08-31T13:00:00.000Z	18 \| good	2.773 \| good	11.166 \| good	19.014 \| good	0.142 \| good	1.052 \| good	0.152 \| good
2025-08-31T14:00:00.000Z	21 \| good	2.458 \| good	10 \| good	23.151 \| good	0.131 \| good	0.836 \| good	0.15 \| good
2025-08-31T15:00:00.000Z	27 \| good	2.428 \| good	10 \| good	29.054 \| good	0.119 \| good	0.621 \| good	0.148 \| good
2025-08-31T16:00:00.000Z	29 \| good	2.482 \| good	10 \| good	31.379 \| good	0.104 \| good	0.582 \| good	0.146 \| good
2025-08-31T17:00:00.000Z	34 \| good	2.399 \| good	9.941 \| good	36.693 \| good	0.088 \| good	0.544 \| good	0.144 \| good
2025-08-31T18:00:00.000Z	31 \| good	2.205 \| good	9.026 \| good	34.172 \| good	0.073 \| good	0.505 \| good	0.142 \| good
2025-08-31T19:00:00.000Z	31 \| good	2.451 \| good	10 \| good	33.531 \| good	0.068 \| good	0.64 \| good	0.142 \| good
2025-08-31T20:00:00.000Z	36 \| good	2.305 \| good	9.653 \| good	39.207 \| good	0.064 \| good	0.775 \| good	0.142 \| good
2025-08-31T21:00:00.000Z	37 \| good	2.398 \| good	10 \| good	39.972 \| good	0.059 \| good	0.911 \| good	0.143 \| good
2025-08-31T22:00:00.000Z	33 \| good	2.37 \| good	9.967 \| good	36.496 \| good	0.12 \| good	3.27 \| good	0.169 \| good
2025-08-31T23:00:00.000Z	29 \| good	2.195 \| good	9.152 \| good	31.207 \| good	0.181 \| good	5.629 \| good	0.195 \| good
2025-09-01T00:00:00.000Z	25 \| good	2.515 \| good	10.252 \| good	27.043 \| good	0.242 \| good	7.988 \| good	0.222 \| good
2025-09-01T01:00:00.000Z	22 \| good	2.552 \| good	10.318 \| good	23.617 \| good	0.368 \| good	8.789 \| good	0.234 \| good
2025-09-01T02:00:00.000Z	19 \| good	3.438 \| good	15.207 \| good	20.484 \| good	0.493 \| good	9.59 \| good	0.247 \| good
2025-09-01T03:00:00.000Z	22 \| good	3.728 \| good	16.493 \| good	19.741 \| good	0.618 \| good	10.391 \| good	0.26 \| good
2025-09-01T04:00:00.000Z	22 \| good	4.437 \| good	19.54 \| good	16.232 \| good	0.571 \| good	10.585 \| good	0.269 \| good
2025-09-01T05:00:00.000Z	27 \| good	4.841 \| good	21.24 \| good	11.043 \| good	0.524 \| good	10.779 \| good	0.278 \| good
2025-09-01T06:00:00.000Z	27 \| good	4.793 \| good	20.786 \| good	9.886 \| good	0.477 \| good	10.973 \| good	0.287 \| good
2025-09-01T07:00:00.000Z	22 \| good	4.327 \| good	18.913 \| good	8.829 \| good	0.41 \| good	9.815 \| good	0.279 \| good
2025-09-01T08:00:00.000Z	22 \| good	4.046 \| good	18 \| good	9.059 \| good	0.344 \| good	8.657 \| good	0.271 \| good
2025-09-01T09:00:00.000Z	16 \| good	3.303 \| good	14.572 \| good	8.711 \| good	0.278 \| good	7.5 \| good	0.263 \| good
2025-09-01T10:00:00.000Z	16 \| good	3.254 \| good	14.023 \| good	3.738 \| good	0.254 \| good	6.158 \| good	0.253 \| good
2025-09-01T11:00:00.000Z	22 \| good	3.859 \| good	16.707 \| good	8.633 \| good	0.23 \| good	4.817 \| good	0.244 \| good
2025-09-01T12:00:00.000Z	27 \| good	5.274 \| good	22.969 \| good	11.638 \| good	0.206 \| good	3.476 \| good	0.235 \| good
2025-09-01T13:00:00.000Z	33 \| good	6.11 \| good	27.023 \| good	20.814 \| good	0.189 \| good	2.595 \| good	0.209 \| good
2025-09-01T14:00:00.000Z	27 \| good	5.416 \| good	23.181 \| good	25.541 \| good	0.172 \| good	1.713 \| good	0.184 \| good
2025-09-01T15:00:00.000Z	24 \| good	4.141 \| good	17.848 \| good	26.265 \| good	0.156 \| good	0.831 \| good	0.158 \| good
2025-09-01T16:00:00.000Z	22 \| good	3.293 \| good	14.76 \| good	23.632 \| good	0.141 \| good	0.752 \| good	0.154 \| good
2025-09-01T17:00:00.000Z	22 \| good	2.846 \| good	11.787 \| good	23.982 \| good	0.126 \| good	0.673 \| good	0.151 \| good
2025-09-01T18:00:00.000Z	18 \| good	2.72 \| good	11.061 \| good	19.056 \| good	0.111 \| good	0.594 \| good	0.147 \| good
2025-09-01T19:00:00.000Z	23 \| good	2.799 \| good	11.244 \| good	25.245 \| good	0.131 \| good	0.695 \| good	0.148 \| good
2025-09-01T20:00:00.000Z	27 \| good	2.673 \| good	10.811 \| good	28.708 \| good	0.151 \| good	0.797 \| good	0.149 \| good
2025-09-01T21:00:00.000Z	27 \| good	2.455 \| good	9.927 \| good	29.084 \| good	0.17 \| good	0.898 \| good	0.151 \| good
2025-09-01T22:00:00.000Z	25 \| good	2.238 \| good	9.054 \| good	26.615 \| good	0.211 \| good	2.264 \| good	0.167 \| good
2025-09-01T23:00:00.000Z	25 \| good	1.799 \| good	7.286 \| good	26.93 \| good	0.251 \| good	3.631 \| good	0.184 \| good
2025-09-02T00:00:00.000Z	44 \| good	7.981 \| good	8.145 \| good	45.031 \| good	0.29 \| good	4.999 \| good	0.2 \| good
2025-09-02T01:00:00.000Z	22 \| good	4.22 \| good	18.288 \| good	18.489 \| good	0.354 \| good	6.039 \| good	0.216 \| good
2025-09-02T02:00:00.000Z	27 \| good	4.891 \| good	21.156 \| good	17.44 \| good	0.416 \| good	7.08 \| good	0.233 \| good

New Hampshire

Empower business decisions with accurate air quality data

New Hampshire, USA air quality map: Real-time AQI near you

Air quality in cities of New Hampshire, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
Amherst, New Hampshire	21 Good	2.33μg/m³ Good	5.32μg/m³ Good	23.34ppb Good	0.37ppb Good	4.85ppb Good	0.17ppm Good
Bedford, New Hampshire	22 Good	2.30μg/m³ Good	5.47μg/m³ Good	23.99ppb Good	0.37ppb Good	4.92ppb Good	0.18ppm Good
Claremont, New Hampshire	22 Good	2.60μg/m³ Good	12.66μg/m³ Good	23.90ppb Good	0.17ppb Good	4.48ppb Good	0.19ppm Good
Concord, New Hampshire	22 Good	2.24μg/m³ Good	5.34μg/m³ Good	24.05ppb Good	0.35ppb Good	4.90ppb Good	0.17ppm Good
Dover, New Hampshire	19 Good	2.40μg/m³ Good	10.05μg/m³ Good	20.00ppb Good	0.57ppb Good	5.38ppb Good	0.18ppm Good
Durham, New Hampshire	17 Good	2.53μg/m³ Good	9.78μg/m³ Good	17.74ppb Good	0.58ppb Good	5.30ppb Good	0.18ppm Good
Derry, New Hampshire	23 Good	2.46μg/m³ Good	5.68μg/m³ Good	25.23ppb Good	0.40ppb Good	4.88ppb Good	0.20ppm Good
Conway, New Hampshire	16 Good	1.98μg/m³ Good	6.15μg/m³ Good	16.89ppb Good	0.45ppb Good	4.55ppb Good	0.18ppm Good
Exeter, New Hampshire	23 Good	2.37μg/m³ Good	6.40μg/m³ Good	25.06ppb Good	0.54ppb Good	5.51ppb Good	0.18ppm Good
Hudson, New Hampshire	22 Good	2.28μg/m³ Good	5.52μg/m³ Good	23.55ppb Good	0.39ppb Good	5.08ppb Good	0.19ppm Good
Goffstown, New Hampshire	22 Good	2.32μg/m³ Good	5.23μg/m³ Good	23.62ppb Good	0.33ppb Good	5.07ppb Good	0.17ppm Good
Hanover, New Hampshire	19 Good	3.06μg/m³ Good	13.73μg/m³ Good	21.11ppb Good	0.18ppb Good	4.56ppb Good	0.17ppm Good
Hooksett, New Hampshire	22 Good	2.29μg/m³ Good	5.51μg/m³ Good	24.11ppb Good	0.33ppb Good	4.92ppb Good	0.18ppm Good
Hampton, New Hampshire	21 Good	2.40μg/m³ Good	7.04μg/m³ Good	23.28ppb Good	0.58ppb Good	5.26ppb Good	0.18ppm Good
Lebanon, New Hampshire	19 Good	3.08μg/m³ Good	13.85μg/m³ Good	21.07ppb Good	0.17ppb Good	4.56ppb Good	0.17ppm Good
Keene, New Hampshire	22 Good	3.10μg/m³ Good	14.00μg/m³ Good	24.00ppb Good	0.15ppb Good	5.09ppb Good	0.19ppm Good
Laconia, New Hampshire	23 Good	1.92μg/m³ Good	8.01μg/m³ Good	25.39ppb Good	0.41ppb Good	5.32ppb Good	0.17ppm Good
Merrimack, New Hampshire	23 Good	2.28μg/m³ Good	5.63μg/m³ Good	24.56ppb Good	0.38ppb Good	4.82ppb Good	0.18ppm Good
Milford, New Hampshire	22 Good	2.34μg/m³ Good	5.62μg/m³ Good	23.65ppb Good	0.27ppb Good	4.85ppb Good	0.17ppm Good
Londonderry, New Hampshire	24 Good	2.40μg/m³ Good	4.33μg/m³ Good	25.86ppb Good	0.40ppb Good	5.03ppb Good	0.20ppm Good
Manchester, New Hampshire	22 Good	2.39μg/m³ Good	5.48μg/m³ Good	23.63ppb Good	0.37ppb Good	4.93ppb Good	0.18ppm Good
Nashua, New Hampshire	23 Good	2.34μg/m³ Good	6.20μg/m³ Good	25.10ppb Good	0.40ppb Good	4.56ppb Good	0.19ppm Good
Portsmouth, New Hampshire	16 Good	3.21μg/m³ Good	9.22μg/m³ Good	17.42ppb Good	0.79ppb Good	5.07ppb Good	0.18ppm Good
Pelham, New Hampshire	23 Good	2.28μg/m³ Good	6.34μg/m³ Good	24.82ppb Good	0.41ppb Good	5.08ppb Good	0.19ppm Good
Raymond, New Hampshire	22 Good	2.26μg/m³ Good	5.32μg/m³ Good	23.73ppb Good	0.45ppb Good	4.97ppb Good	0.18ppm Good
Salem, New Hampshire	21 Good	2.95μg/m³ Good	11.72μg/m³ Good	22.68ppb Good	0.44ppb Good	4.55ppb Good	0.19ppm Good
Rochester, New Hampshire	19 Good	2.33μg/m³ Good	4.62μg/m³ Good	20.22ppb Good	0.51ppb Good	5.72ppb Good	0.18ppm Good
Somersworth, New Hampshire	19 Good	2.39μg/m³ Good	8.86μg/m³ Good	20.25ppb Good	0.56ppb Good	5.46ppb Good	0.18ppm Good
Windham, New Hampshire	23 Good	2.46μg/m³ Good	6.80μg/m³ Good	24.86ppb Good	0.40ppb Good	4.64ppb Good	0.19ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.25ppm

How accurate is New Hampshire, USA air quality data?

Air quality measurements for New Hampshire, 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

Air quality levels in US

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 Hampshire, USA updated?

Air quality data for New Hampshire, USA is updated on an hourly basis.

When did New Hampshire, USA experience the worst air quality in the last 24 hours?

The worst air quality in New Hampshire, USA was recorded at 02:00:00 on 2025-08-30.

When did New Hampshire, USA have its best air quality in the last 24 hours?

The best air quality in New Hampshire, USA was recorded at 02:00:00 on 2025-08-30.

What is the real-time air quality index for New Hampshire, USA?

The real-time air quality index in New Hampshire, USA is 21, currently categorized as Good.

Which pollutant is found most often in New Hampshire, USA?

The most common pollutant in New Hampshire, USA is O3.

What can I do if the air quality in New Hampshire, USA is poor?

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

What are the current PM_2.5 levels in New Hampshire, USA?

The measured PM_2.5 levels in New Hampshire, USA at present are 2.458 μg/m³.

What are the current PM₁₀ levels at New Hampshire, USA?

The current PM₁₀ levels in New Hampshire, USA are 7.581 μg/m³.

What are the current carbon monoxide (CO) levels at New Hampshire, USA?

The current carbon monoxide (CO) level in New Hampshire, USA is 0.183 ppm.

What are the current sulfur dioxide (SO₂) levels at New Hampshire, USA?

The current sulfur dioxide (SO₂) levels in New Hampshire, USA are 0.404 ppb.

What are the current ozone (O₃) levels at New Hampshire, USA?

The current ozone (O₃) levels at New Hampshire, USA is 22.866 ppm.

What are the current nitrogen dioxide (NO₂) levels at New Hampshire, USA?

The current nitrogen dioxide (NO₂) levels at New Hampshire, USA is 4.977 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-08-29T04:00:00.000Z	38 \| good	6.693 \| good	30 \| good	35.483 \| good	1.122 \| good	3.988 \| good	0.194 \| good
2025-08-29T05:00:00.000Z	32 \| good	3.528 \| good	18.015 \| good	34.977 \| good	0.341 \| good	8.169 \| good	0.162 \| good
2025-08-29T06:00:00.000Z	30 \| good	3.644 \| good	14.645 \| good	31.994 \| good	0.334 \| good	7.997 \| good	0.162 \| good
2025-08-29T07:00:00.000Z	27 \| good	3.621 \| good	9.713 \| good	28.676 \| good	0.325 \| good	7.203 \| good	0.162 \| good
2025-08-29T08:00:00.000Z	26 \| good	3.783 \| good	12.174 \| good	28.227 \| good	0.342 \| good	7.196 \| good	0.161 \| good
2025-08-29T09:00:00.000Z	26 \| good	3.818 \| good	18.859 \| good	28.236 \| good	0.334 \| good	6.848 \| good	0.161 \| good
2025-08-29T10:00:00.000Z	24 \| good	3.8 \| good	15.822 \| good	26.237 \| good	0.366 \| good	7.163 \| good	0.161 \| good
2025-08-29T11:00:00.000Z	24 \| good	3.949 \| good	15.165 \| good	26.263 \| good	0.337 \| good	7.44 \| good	0.161 \| good
2025-08-29T12:00:00.000Z	22 \| good	4.115 \| good	17.187 \| good	12.753 \| good	0.348 \| good	7.773 \| good	0.174 \| good
2025-08-29T13:00:00.000Z	27 \| good	4.564 \| good	19.782 \| good	26.172 \| good	0.342 \| good	9.678 \| good	0.188 \| good
2025-08-29T14:00:00.000Z	27 \| good	4.924 \| good	16.239 \| good	28.212 \| good	0.397 \| good	8.908 \| good	0.201 \| good
2025-08-29T15:00:00.000Z	33 \| good	4.473 \| good	11.715 \| good	35.855 \| good	0.291 \| good	14.428 \| good	0.187 \| good
2025-08-29T16:00:00.000Z	33 \| good	4.271 \| good	13.17 \| good	36.016 \| good	0.286 \| good	8.825 \| good	0.161 \| good
2025-08-29T17:00:00.000Z	33 \| good	5.151 \| good	15.943 \| good	35.841 \| good	0.3 \| good	9.233 \| good	0.161 \| good
2025-08-29T18:00:00.000Z	34 \| good	3.968 \| good	17.954 \| good	36.58 \| good	0.293 \| good	7.263 \| good	0.175 \| good
2025-08-29T19:00:00.000Z	41 \| good	4.251 \| good	14.019 \| good	44.466 \| good	0.333 \| good	8.15 \| good	0.175 \| good
2025-08-29T20:00:00.000Z	36 \| good	4.408 \| good	14.915 \| good	38.536 \| good	0.32 \| good	7.381 \| good	0.188 \| good
2025-08-29T21:00:00.000Z	39 \| good	4.24 \| good	14.941 \| good	41.923 \| good	0.268 \| good	8.954 \| good	0.188 \| good
2025-08-29T22:00:00.000Z	39 \| good	3.977 \| good	16.75 \| good	41.575 \| good	0.256 \| good	9.5 \| good	0.184 \| good
2025-08-29T23:00:00.000Z	37 \| good	3.747 \| good	13.757 \| good	39.604 \| good	0.33 \| good	6.299 \| good	0.202 \| good
2025-08-30T00:00:00.000Z	35 \| good	3.661 \| good	7.174 \| good	37.952 \| good	0.259 \| good	11.043 \| good	0.183 \| good
2025-08-30T01:00:00.000Z	31 \| good	3.398 \| good	6.708 \| good	32.724 \| good	0.27 \| good	5.841 \| good	0.201 \| good
2025-08-30T02:00:00.000Z	27 \| good	3.033 \| good	11.637 \| good	29.006 \| good	0.331 \| good	5.985 \| good	0.214 \| good
2025-08-30T03:00:00.000Z	14 \| good	2.391 \| good	10.086 \| good	14.872 \| good	0.26 \| good	10.624 \| good	0.289 \| good
2025-08-30T04:00:00.000Z	19 \| good	3.249 \| good	10.985 \| good	20.141 \| good	0.303 \| good	3.951 \| good	0.201 \| good
2025-08-30T05:00:00.000Z	17 \| good	3.189 \| good	7.129 \| good	18.041 \| good	0.272 \| good	4.977 \| good	0.188 \| good
2025-08-30T06:00:00.000Z	16 \| good	3.108 \| good	8.822 \| good	15.737 \| good	0.315 \| good	3.071 \| good	0.188 \| good
2025-08-30T07:00:00.000Z	16 \| good	3.007 \| good	13.865 \| good	12.715 \| good	0.233 \| good	2.553 \| good	0.174 \| good
2025-08-30T08:00:00.000Z	16 \| good	3.48 \| good	16.189 \| good	11.432 \| good	0.241 \| good	3.195 \| good	0.174 \| good
2025-08-30T09:00:00.000Z	16 \| good	3.353 \| good	14.476 \| good	11.978 \| good	0.229 \| good	4.534 \| good	0.113 \| good
2025-08-30T10:00:00.000Z	16 \| good	3.143 \| good	15.028 \| good	12.463 \| good	0.332 \| good	2.552 \| good	0.149 \| good
2025-08-30T11:00:00.000Z	16 \| good	2.9 \| good	10.457 \| good	12.487 \| good	0.324 \| good	2.261 \| good	0.162 \| good
2025-08-30T12:00:00.000Z	16 \| good	2.886 \| good	9.864 \| good	10.596 \| good	0.251 \| good	4.261 \| good	0.162 \| good
2025-08-30T13:00:00.000Z	16 \| good	2.532 \| good	9.684 \| good	11.609 \| good	0.249 \| good	2.712 \| good	0.175 \| good
2025-08-30T14:00:00.000Z	14 \| good	2.325 \| good	11.391 \| good	15.301 \| good	0.329 \| good	1.702 \| good	0.162 \| good
2025-08-30T15:00:00.000Z	17 \| good	2.185 \| good	10.689 \| good	18.168 \| good	0.325 \| good	1.208 \| good	0.162 \| good
2025-08-30T16:00:00.000Z	19 \| good	2.007 \| good	8.323 \| good	21.04 \| good	0.267 \| good	1.027 \| good	0.149 \| good
2025-08-30T17:00:00.000Z	22 \| good	2.223 \| good	6.102 \| good	23.863 \| good	0.268 \| good	2.41 \| good	0.149 \| good
2025-08-30T18:00:00.000Z	25 \| good	1.998 \| good	7.352 \| good	26.813 \| good	0.245 \| good	1.542 \| good	0.149 \| good
2025-08-30T19:00:00.000Z	26 \| good	2.002 \| good	8.847 \| good	27.888 \| good	0.325 \| good	1.132 \| good	0.149 \| good
2025-08-30T20:00:00.000Z	24 \| good	1.931 \| good	7.046 \| good	25.987 \| good	0.325 \| good	1.95 \| good	0.149 \| good
2025-08-30T21:00:00.000Z	24 \| good	1.902 \| good	4.99 \| good	26.036 \| good	0.276 \| good	2.379 \| good	0.149 \| good
2025-08-30T22:00:00.000Z	23 \| good	2.174 \| good	6.784 \| good	25.136 \| good	0.259 \| good	1.525 \| good	0.149 \| good
2025-08-30T23:00:00.000Z	23 \| good	2.29 \| good	7.171 \| good	25.324 \| good	0.327 \| good	2.414 \| good	0.162 \| good
2025-08-31T00:00:00.000Z	23 \| good	2.103 \| good	5.567 \| good	24.787 \| good	0.435 \| good	3.581 \| good	0.175 \| good
2025-08-31T01:00:00.000Z	22 \| good	2.237 \| good	5.345 \| good	24.049 \| good	0.348 \| good	4.896 \| good	0.175 \| good
2025-08-31T02:00:00.000Z	21 \| good	2.624 \| good	11.028 \| good	22.74 \| good	0.435 \| good	5.947 \| good	0.175 \| good
2025-08-31T03:00:00.000Z	19 \| good	2.937 \| good	11.377 \| good	21.352 \| good	0.63 \| good	6.401 \| good	0.183 \| good
2025-08-31T03:00:00.000Z	11 \| good	1.473 \| good	5.892 \| good	12.452 \| good	0.117 \| good	3.349 \| good	0.163 \| good
2025-08-31T04:00:00.000Z	11 \| good	1.621 \| good	6.684 \| good	9.447 \| good	0.119 \| good	2.863 \| good	0.159 \| good
2025-08-31T05:00:00.000Z	11 \| good	1.792 \| good	7.653 \| good	10.461 \| good	0.121 \| good	2.377 \| good	0.155 \| good
2025-08-31T06:00:00.000Z	11 \| good	1.68 \| good	6.973 \| good	12.489 \| good	0.123 \| good	1.891 \| good	0.151 \| good
2025-08-31T07:00:00.000Z	14 \| good	2.009 \| good	8.031 \| good	15.065 \| good	0.131 \| good	1.641 \| good	0.149 \| good
2025-08-31T08:00:00.000Z	12 \| good	2.067 \| good	8.166 \| good	13.067 \| good	0.14 \| good	1.391 \| good	0.147 \| good
2025-08-31T09:00:00.000Z	11 \| good	1.795 \| good	7.653 \| good	7.027 \| good	0.148 \| good	1.142 \| good	0.145 \| good
2025-08-31T10:00:00.000Z	11 \| good	2.009 \| good	8.086 \| good	4.74 \| good	0.15 \| good	1.183 \| good	0.148 \| good
2025-08-31T11:00:00.000Z	11 \| good	2.232 \| good	9.108 \| good	10.628 \| good	0.152 \| good	1.225 \| good	0.151 \| good
2025-08-31T12:00:00.000Z	16 \| good	2.824 \| good	11.726 \| good	15.181 \| good	0.154 \| good	1.267 \| good	0.154 \| good
2025-08-31T13:00:00.000Z	18 \| good	2.773 \| good	11.166 \| good	19.014 \| good	0.142 \| good	1.052 \| good	0.152 \| good
2025-08-31T14:00:00.000Z	21 \| good	2.458 \| good	10 \| good	23.151 \| good	0.131 \| good	0.836 \| good	0.15 \| good
2025-08-31T15:00:00.000Z	27 \| good	2.428 \| good	10 \| good	29.054 \| good	0.119 \| good	0.621 \| good	0.148 \| good
2025-08-31T16:00:00.000Z	29 \| good	2.482 \| good	10 \| good	31.379 \| good	0.104 \| good	0.582 \| good	0.146 \| good
2025-08-31T17:00:00.000Z	34 \| good	2.399 \| good	9.941 \| good	36.693 \| good	0.088 \| good	0.544 \| good	0.144 \| good
2025-08-31T18:00:00.000Z	31 \| good	2.205 \| good	9.026 \| good	34.172 \| good	0.073 \| good	0.505 \| good	0.142 \| good
2025-08-31T19:00:00.000Z	31 \| good	2.451 \| good	10 \| good	33.531 \| good	0.068 \| good	0.64 \| good	0.142 \| good
2025-08-31T20:00:00.000Z	36 \| good	2.305 \| good	9.653 \| good	39.207 \| good	0.064 \| good	0.775 \| good	0.142 \| good
2025-08-31T21:00:00.000Z	37 \| good	2.398 \| good	10 \| good	39.972 \| good	0.059 \| good	0.911 \| good	0.143 \| good
2025-08-31T22:00:00.000Z	33 \| good	2.37 \| good	9.967 \| good	36.496 \| good	0.12 \| good	3.27 \| good	0.169 \| good
2025-08-31T23:00:00.000Z	29 \| good	2.195 \| good	9.152 \| good	31.207 \| good	0.181 \| good	5.629 \| good	0.195 \| good
2025-09-01T00:00:00.000Z	25 \| good	2.515 \| good	10.252 \| good	27.043 \| good	0.242 \| good	7.988 \| good	0.222 \| good
2025-09-01T01:00:00.000Z	22 \| good	2.552 \| good	10.318 \| good	23.617 \| good	0.368 \| good	8.789 \| good	0.234 \| good
2025-09-01T02:00:00.000Z	19 \| good	3.438 \| good	15.207 \| good	20.484 \| good	0.493 \| good	9.59 \| good	0.247 \| good
2025-09-01T03:00:00.000Z	22 \| good	3.728 \| good	16.493 \| good	19.741 \| good	0.618 \| good	10.391 \| good	0.26 \| good
2025-09-01T04:00:00.000Z	22 \| good	4.437 \| good	19.54 \| good	16.232 \| good	0.571 \| good	10.585 \| good	0.269 \| good
2025-09-01T05:00:00.000Z	27 \| good	4.841 \| good	21.24 \| good	11.043 \| good	0.524 \| good	10.779 \| good	0.278 \| good
2025-09-01T06:00:00.000Z	27 \| good	4.793 \| good	20.786 \| good	9.886 \| good	0.477 \| good	10.973 \| good	0.287 \| good
2025-09-01T07:00:00.000Z	22 \| good	4.327 \| good	18.913 \| good	8.829 \| good	0.41 \| good	9.815 \| good	0.279 \| good
2025-09-01T08:00:00.000Z	22 \| good	4.046 \| good	18 \| good	9.059 \| good	0.344 \| good	8.657 \| good	0.271 \| good
2025-09-01T09:00:00.000Z	16 \| good	3.303 \| good	14.572 \| good	8.711 \| good	0.278 \| good	7.5 \| good	0.263 \| good
2025-09-01T10:00:00.000Z	16 \| good	3.254 \| good	14.023 \| good	3.738 \| good	0.254 \| good	6.158 \| good	0.253 \| good
2025-09-01T11:00:00.000Z	22 \| good	3.859 \| good	16.707 \| good	8.633 \| good	0.23 \| good	4.817 \| good	0.244 \| good
2025-09-01T12:00:00.000Z	27 \| good	5.274 \| good	22.969 \| good	11.638 \| good	0.206 \| good	3.476 \| good	0.235 \| good
2025-09-01T13:00:00.000Z	33 \| good	6.11 \| good	27.023 \| good	20.814 \| good	0.189 \| good	2.595 \| good	0.209 \| good
2025-09-01T14:00:00.000Z	27 \| good	5.416 \| good	23.181 \| good	25.541 \| good	0.172 \| good	1.713 \| good	0.184 \| good
2025-09-01T15:00:00.000Z	24 \| good	4.141 \| good	17.848 \| good	26.265 \| good	0.156 \| good	0.831 \| good	0.158 \| good
2025-09-01T16:00:00.000Z	22 \| good	3.293 \| good	14.76 \| good	23.632 \| good	0.141 \| good	0.752 \| good	0.154 \| good
2025-09-01T17:00:00.000Z	22 \| good	2.846 \| good	11.787 \| good	23.982 \| good	0.126 \| good	0.673 \| good	0.151 \| good
2025-09-01T18:00:00.000Z	18 \| good	2.72 \| good	11.061 \| good	19.056 \| good	0.111 \| good	0.594 \| good	0.147 \| good
2025-09-01T19:00:00.000Z	23 \| good	2.799 \| good	11.244 \| good	25.245 \| good	0.131 \| good	0.695 \| good	0.148 \| good
2025-09-01T20:00:00.000Z	27 \| good	2.673 \| good	10.811 \| good	28.708 \| good	0.151 \| good	0.797 \| good	0.149 \| good
2025-09-01T21:00:00.000Z	27 \| good	2.455 \| good	9.927 \| good	29.084 \| good	0.17 \| good	0.898 \| good	0.151 \| good
2025-09-01T22:00:00.000Z	25 \| good	2.238 \| good	9.054 \| good	26.615 \| good	0.211 \| good	2.264 \| good	0.167 \| good
2025-09-01T23:00:00.000Z	25 \| good	1.799 \| good	7.286 \| good	26.93 \| good	0.251 \| good	3.631 \| good	0.184 \| good
2025-09-02T00:00:00.000Z	44 \| good	7.981 \| good	8.145 \| good	45.031 \| good	0.29 \| good	4.999 \| good	0.2 \| good
2025-09-02T01:00:00.000Z	22 \| good	4.22 \| good	18.288 \| good	18.489 \| good	0.354 \| good	6.039 \| good	0.216 \| good
2025-09-02T02:00:00.000Z	27 \| good	4.891 \| good	21.156 \| good	17.44 \| good	0.416 \| good	7.08 \| good	0.233 \| good

Real-time air quality index in New Hampshire, USA today

Common air pollutants in New Hampshire, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live New Hampshire, USA air quality forecast and history

Empower business decisions with accurate air quality data

New Hampshire, USA air quality map: Real-time AQI near you

Air quality in cities of New Hampshire, USA

Air quality in nearby states

Massachusetts, USA

Vermont, USA

Rhode Island, USA

Connecticut, USA

Maine, USA

New York, USA

How accurate is New Hampshire, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for New Hampshire, USA updated?

When did New Hampshire, USA experience the worst air quality in the last 24 hours?

When did New Hampshire, USA have its best air quality in the last 24 hours?

What is the real-time air quality index for New Hampshire, USA?

Which pollutant is found most often in New Hampshire, USA?

What can I do if the air quality in New Hampshire, USA is poor?

What are the current PM2.5 levels in New Hampshire, USA?

What are the current PM10 levels at New Hampshire, USA?

What are the current carbon monoxide (CO) levels at New Hampshire, USA?

What are the current sulfur dioxide (SO2) levels at New Hampshire, USA?

What are the current ozone (O3) levels at New Hampshire, USA?

What are the current nitrogen dioxide (NO2) levels at New Hampshire, USA?

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 Hampshire, USA?

What are the current PM₁₀ levels at New Hampshire, USA?

What are the current sulfur dioxide (SO₂) levels at New Hampshire, USA?

What are the current ozone (O₃) levels at New Hampshire, USA?

What are the current nitrogen dioxide (NO₂) levels at New Hampshire, USA?