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

The current PM10 levels in New Hampshire, USA are 4.125 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 0.339 ppb.

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

The current ozone (O3) levels at New Hampshire, USA is 26.55 ppm.

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

The current nitrogen dioxide (NO2) levels at New Hampshire, USA is 1.857 ppb.

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

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

The measured PM2.5 levels in New Hampshire, USA at present are 1.393 μg/m3.

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)

1.38 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

4.46 μg/m³

155

255

425

605+

Ozone (O₃)

26.69 ppb

201

201+

Sulfur Dioxide (SO₂)

0.34 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.47 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.16 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2025-10-31T23:00:00.000Z	19 \| good	0.738 \| good	4.387 \| good	21.351 \| good	0.92 \| good	2.359 \| good	0.19 \| good
2025-11-01T00:00:00.000Z	20 \| good	0.785 \| good	3.31 \| good	21.674 \| good	1.008 \| good	1.833 \| good	0.176 \| good
2025-11-01T01:00:00.000Z	22 \| good	0.692 \| good	4.64 \| good	23.73 \| good	0.919 \| good	1.773 \| good	0.162 \| good
2025-11-01T02:00:00.000Z	22 \| good	0.732 \| good	3.771 \| good	23.826 \| good	0.921 \| good	1.586 \| good	0.162 \| good
2025-11-01T03:00:00.000Z	24 \| good	0.62 \| good	3.687 \| good	26.081 \| good	0.965 \| good	1.139 \| good	0.162 \| good
2025-11-01T04:00:00.000Z	28 \| good	0.533 \| good	3.944 \| good	30.354 \| good	1.01 \| good	1.025 \| good	0.162 \| good
2025-11-01T05:00:00.000Z	28 \| good	0.391 \| good	4.767 \| good	29.993 \| good	0.952 \| good	1.487 \| good	0.162 \| good
2025-11-01T06:00:00.000Z	29 \| good	0.355 \| good	3.199 \| good	30.507 \| good	0.949 \| good	1.485 \| good	0.162 \| good
2025-11-01T07:00:00.000Z	28 \| good	0.272 \| good	3.224 \| good	30.09 \| good	0.94 \| good	1.482 \| good	0.162 \| good
2025-11-01T08:00:00.000Z	24 \| good	0.151 \| good	2.033 \| good	26.498 \| good	0.973 \| good	1.965 \| good	0.162 \| good
2025-11-01T09:00:00.000Z	24 \| good	0.237 \| good	3.509 \| good	25.821 \| good	1.059 \| good	0.908 \| good	0.162 \| good
2025-11-01T10:00:00.000Z	25 \| good	0.196 \| good	1.563 \| good	27.136 \| good	0.973 \| good	1.25 \| good	0.162 \| good
2025-11-01T11:00:00.000Z	25 \| good	0.279 \| good	2.055 \| good	27.217 \| good	1.053 \| good	1.002 \| good	0.162 \| good
2025-11-01T12:00:00.000Z	25 \| good	0.223 \| good	2.12 \| good	27.071 \| good	1.051 \| good	1.663 \| good	0.162 \| good
2025-11-01T13:00:00.000Z	25 \| good	0.279 \| good	1.427 \| good	27.364 \| good	1.041 \| good	1.85 \| good	0.162 \| good
2025-11-01T14:00:00.000Z	27 \| good	0.555 \| good	2.628 \| good	29.061 \| good	0.97 \| good	1.283 \| good	0.162 \| good
2025-11-01T15:00:00.000Z	27 \| good	0.785 \| good	4.913 \| good	29.423 \| good	0.97 \| good	2.066 \| good	0.176 \| good
2025-11-01T16:00:00.000Z	27 \| good	1.027 \| good	3.868 \| good	28.853 \| good	1.002 \| good	1.65 \| good	0.162 \| good
2025-11-01T17:00:00.000Z	28 \| good	1.167 \| good	3.094 \| good	30.103 \| good	1.051 \| good	1.552 \| good	0.162 \| good
2025-11-01T18:00:00.000Z	29 \| good	1.255 \| good	5.202 \| good	30.788 \| good	1.054 \| good	1.529 \| good	0.162 \| good
2025-11-01T19:00:00.000Z	31 \| good	1.438 \| good	5.639 \| good	32.993 \| good	1.04 \| good	1.368 \| good	0.162 \| good
2025-11-01T20:00:00.000Z	31 \| good	1.547 \| good	4.192 \| good	33.353 \| good	1.001 \| good	1.531 \| good	0.176 \| good
2025-11-01T21:00:00.000Z	31 \| good	1.461 \| good	3.555 \| good	33.492 \| good	1.003 \| good	1.553 \| good	0.162 \| good
2025-11-01T22:00:00.000Z	31 \| good	1.296 \| good	3.836 \| good	32.682 \| good	1.005 \| good	1.895 \| good	0.162 \| good
2025-11-01T23:00:00.000Z	30 \| good	1.204 \| good	2.585 \| good	31.867 \| good	1.074 \| good	1.48 \| good	0.176 \| good
2025-11-02T00:00:00.000Z	29 \| good	1.311 \| good	3.777 \| good	30.724 \| good	0.976 \| good	2.575 \| good	0.19 \| good
2025-11-02T01:00:00.000Z	27 \| good	1.654 \| good	5.187 \| good	28.808 \| good	1.009 \| good	2.856 \| good	0.176 \| good
2025-11-02T02:00:00.000Z	24 \| good	1.623 \| good	5.994 \| good	25.516 \| good	1.014 \| good	3.471 \| good	0.19 \| good
2025-11-02T03:00:00.000Z	23 \| good	1.941 \| good	8.045 \| good	24.965 \| good	0.108 \| good	1.384 \| good	0.132 \| good
2025-11-02T04:00:00.000Z	24 \| good	1.462 \| good	7.987 \| good	25.626 \| good	1.086 \| good	5.106 \| good	0.2 \| good
2025-11-02T05:00:00.000Z	24 \| good	1.665 \| good	6.129 \| good	25.52 \| good	1.002 \| good	4.03 \| good	0.2 \| good
2025-11-02T06:00:00.000Z	24 \| good	1.319 \| good	4.077 \| good	25.532 \| good	1.001 \| good	4.921 \| good	0.186 \| good
2025-11-02T07:00:00.000Z	24 \| good	1.208 \| good	2.769 \| good	25.63 \| good	1.001 \| good	6.158 \| good	0.186 \| good
2025-11-02T08:00:00.000Z	23 \| good	1.452 \| good	3.807 \| good	24.875 \| good	1 \| good	7.515 \| good	0.186 \| good
2025-11-02T09:00:00.000Z	21 \| good	1.332 \| good	5.053 \| good	23.435 \| good	1 \| good	7.101 \| good	0.162 \| good
2025-11-02T10:00:00.000Z	21 \| good	1.278 \| good	4.199 \| good	22.918 \| good	0.999 \| good	9.2 \| good	0.186 \| good
2025-11-02T11:00:00.000Z	18 \| good	1.448 \| good	3.821 \| good	19.322 \| good	0.998 \| good	11.114 \| good	0.186 \| good
2025-11-02T12:00:00.000Z	18 \| good	1.539 \| good	2.909 \| good	19.394 \| good	0.281 \| good	10.165 \| good	0.2 \| good
2025-11-02T13:00:00.000Z	16 \| good	1.557 \| good	2.636 \| good	16.64 \| good	0.268 \| good	9.254 \| good	0.252 \| good
2025-11-02T14:00:00.000Z	16 \| good	1.512 \| good	7.017 \| good	16.899 \| good	0.278 \| good	6.911 \| good	0.189 \| good
2025-11-02T15:00:00.000Z	17 \| good	1.76 \| good	5.442 \| good	17.777 \| good	0.29 \| good	3.437 \| good	0.156 \| good
2025-11-02T16:00:00.000Z	19 \| good	1.516 \| good	2.31 \| good	21.322 \| good	0.318 \| good	1.874 \| good	0.156 \| good
2025-11-02T17:00:00.000Z	21 \| good	1.39 \| good	4.586 \| good	23.193 \| good	0.318 \| good	1.363 \| good	0.156 \| good
2025-11-02T18:00:00.000Z	22 \| good	1.352 \| good	4.433 \| good	24 \| good	0.302 \| good	1.387 \| good	0.156 \| good
2025-11-02T19:00:00.000Z	26 \| good	1.361 \| good	3.145 \| good	28.375 \| good	0.29 \| good	1.989 \| good	0.156 \| good
2025-11-02T20:00:00.000Z	28 \| good	1.18 \| good	3.127 \| good	29.639 \| good	0.305 \| good	2.097 \| good	0.156 \| good
2025-11-02T21:00:00.000Z	31 \| good	1.163 \| good	3.524 \| good	34.309 \| good	0.306 \| good	2.775 \| good	0.156 \| good
2025-11-02T22:00:00.000Z	25 \| good	1.382 \| good	4.462 \| good	26.694 \| good	0.338 \| good	2.467 \| good	0.16 \| good
2025-11-02T21:00:00.000Z	33 \| good	1.686 \| good	6.892 \| good	35.525 \| good	0.154 \| good	1.484 \| good	0.134 \| good
2025-11-02T22:00:00.000Z	35 \| good	1.917 \| good	7.866 \| good	38.049 \| good	0.199 \| good	2.884 \| good	0.147 \| good
2025-11-02T23:00:00.000Z	36 \| good	2.188 \| good	8.938 \| good	39.333 \| good	0.244 \| good	4.284 \| good	0.16 \| good
2025-11-03T00:00:00.000Z	29 \| good	2.524 \| good	10.075 \| good	31.274 \| good	0.288 \| good	5.684 \| good	0.174 \| good
2025-11-03T01:00:00.000Z	24 \| good	3.027 \| good	12.264 \| good	26.232 \| good	0.342 \| good	5.954 \| good	0.177 \| good
2025-11-03T02:00:00.000Z	19 \| good	3.439 \| good	15.206 \| good	20.936 \| good	0.396 \| good	6.225 \| good	0.181 \| good
2025-11-03T03:00:00.000Z	22 \| good	3.668 \| good	15.807 \| good	13.799 \| good	0.449 \| good	6.495 \| good	0.185 \| good
2025-11-03T04:00:00.000Z	16 \| good	3.269 \| good	14.383 \| good	14.405 \| good	0.463 \| good	6.409 \| good	0.187 \| good
2025-11-03T05:00:00.000Z	17 \| good	2.853 \| good	11.876 \| good	18.39 \| good	0.477 \| good	6.322 \| good	0.188 \| good
2025-11-03T06:00:00.000Z	16 \| good	2.587 \| good	10.733 \| good	17.257 \| good	0.491 \| good	6.236 \| good	0.189 \| good
2025-11-03T07:00:00.000Z	16 \| good	2.98 \| good	12.306 \| good	15.957 \| good	0.587 \| good	6.084 \| good	0.188 \| good
2025-11-03T08:00:00.000Z	16 \| good	3.445 \| good	15.206 \| good	13.223 \| good	0.684 \| good	5.931 \| good	0.187 \| good
2025-11-03T09:00:00.000Z	27 \| good	4.518 \| good	19.403 \| good	15.595 \| good	0.78 \| good	5.779 \| good	0.185 \| good
2025-11-03T10:00:00.000Z	27 \| good	4.64 \| good	20.207 \| good	14.991 \| good	1.088 \| good	7.813 \| good	0.207 \| good
2025-11-03T11:00:00.000Z	27 \| good	4.755 \| good	20.906 \| good	11.177 \| good	1.395 \| good	9.847 \| good	0.229 \| good
2025-11-03T12:00:00.000Z	33 \| good	6.129 \| good	27.375 \| good	10.272 \| good	1.702 \| good	11.882 \| good	0.251 \| good
2025-11-03T13:00:00.000Z	49 \| good	8.81 \| good	38.762 \| good	15.145 \| good	2.078 \| good	10.177 \| good	0.241 \| good
2025-11-03T14:00:00.000Z	56 \| moderate	12.435 \| fine	55.763 \| fine	24.209 \| good	2.454 \| good	8.473 \| good	0.231 \| good
2025-11-03T15:00:00.000Z	52 \| moderate	10.162 \| good	44.778 \| good	36.542 \| good	2.83 \| good	6.768 \| good	0.221 \| good
2025-11-03T16:00:00.000Z	44 \| good	7.588 \| good	33.586 \| good	38.658 \| good	2.469 \| good	5.517 \| good	0.197 \| good
2025-11-03T17:00:00.000Z	44 \| good	7.61 \| good	33.481 \| good	41.318 \| good	2.108 \| good	4.266 \| good	0.174 \| good
2025-11-03T18:00:00.000Z	41 \| good	6.429 \| good	28.652 \| good	43.927 \| good	1.747 \| good	3.015 \| good	0.15 \| good
2025-11-03T19:00:00.000Z	43 \| good	5.943 \| good	26.4 \| good	46.153 \| good	1.64 \| good	3.216 \| good	0.149 \| good
2025-11-03T20:00:00.000Z	44 \| good	5.749 \| good	24.799 \| good	47.005 \| good	1.533 \| good	3.418 \| good	0.147 \| good
2025-11-03T21:00:00.000Z	42 \| good	5.649 \| good	24.43 \| good	44.782 \| good	1.426 \| good	3.619 \| good	0.146 \| good
2025-11-03T22:00:00.000Z	40 \| good	5.979 \| good	26.354 \| good	42.604 \| good	1.461 \| good	4.082 \| good	0.15 \| good
2025-11-03T23:00:00.000Z	44 \| good	6.089 \| good	27.335 \| good	48.11 \| good	1.495 \| good	4.545 \| good	0.154 \| good
2025-11-04T00:00:00.000Z	47 \| good	5.351 \| good	22.97 \| good	50.704 \| good	1.529 \| good	5.009 \| good	0.157 \| good
2025-11-04T01:00:00.000Z	44 \| good	4.069 \| good	17.893 \| good	47.955 \| good	1.52 \| good	4.07 \| good	0.154 \| good
2025-11-04T02:00:00.000Z	44 \| good	3.081 \| good	13.337 \| good	46.862 \| good	1.511 \| good	3.132 \| good	0.151 \| good
2025-11-04T03:00:00.000Z	40 \| good	2.804 \| good	11.653 \| good	42.672 \| good	1.502 \| good	2.194 \| good	0.148 \| good
2025-11-04T04:00:00.000Z	39 \| good	2.22 \| good	9.031 \| good	41.877 \| good	1.151 \| good	1.95 \| good	0.145 \| good
2025-11-04T05:00:00.000Z	39 \| good	1.461 \| good	6 \| good	42.15 \| good	0.799 \| good	1.707 \| good	0.141 \| good
2025-11-04T06:00:00.000Z	35 \| good	1.417 \| good	5.687 \| good	38.295 \| good	0.447 \| good	1.463 \| good	0.138 \| good
2025-11-04T07:00:00.000Z	34 \| good	0.988 \| good	4 \| good	36.626 \| good	0.39 \| good	1.229 \| good	0.134 \| good
2025-11-04T08:00:00.000Z	32 \| good	0.876 \| good	3.086 \| good	35.49 \| good	0.334 \| good	0.996 \| good	0.129 \| good
2025-11-04T09:00:00.000Z	31 \| good	1.041 \| good	4.058 \| good	34.442 \| good	0.277 \| good	0.762 \| good	0.124 \| good
2025-11-04T10:00:00.000Z	31 \| good	0.948 \| good	3.868 \| good	33.378 \| good	0.274 \| good	0.921 \| good	0.125 \| good
2025-11-04T11:00:00.000Z	29 \| good	0.936 \| good	3.868 \| good	31.171 \| good	0.27 \| good	1.079 \| good	0.125 \| good
2025-11-04T12:00:00.000Z	31 \| good	0.883 \| good	3.119 \| good	33.662 \| good	0.266 \| good	1.237 \| good	0.125 \| good
2025-11-04T13:00:00.000Z	33 \| good	0.897 \| good	3.687 \| good	35.662 \| good	0.276 \| good	1.015 \| good	0.123 \| good
2025-11-04T14:00:00.000Z	34 \| good	1.035 \| good	4 \| good	36.572 \| good	0.285 \| good	0.793 \| good	0.122 \| good
2025-11-04T15:00:00.000Z	33 \| good	0.78 \| good	3 \| good	36.36 \| good	0.295 \| good	0.571 \| good	0.12 \| good
2025-11-04T16:00:00.000Z	34 \| good	0.484 \| good	1.969 \| good	36.943 \| good	0.311 \| good	0.521 \| good	0.118 \| good
2025-11-04T17:00:00.000Z	34 \| good	0.488 \| good	1.914 \| good	36.879 \| good	0.328 \| good	0.472 \| good	0.116 \| good
2025-11-04T18:00:00.000Z	33 \| good	0.26 \| good	0.845 \| good	35.699 \| good	0.345 \| good	0.423 \| good	0.115 \| good
2025-11-04T19:00:00.000Z	32 \| good	0.531 \| good	2 \| good	35.375 \| good	0.337 \| good	0.604 \| good	0.113 \| good
2025-11-04T20:00:00.000Z	34 \| good	0.866 \| good	3.086 \| good	36.748 \| good	0.329 \| good	0.785 \| good	0.112 \| 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
Concord, New Hampshire	31 Good	1.16μg/m³ Good	3.52μg/m³ Good	34.31ppb Good	0.31ppb Good	2.77ppb Good	0.16ppm Good
Laconia, New Hampshire	31 Good	1.20μg/m³ Good	4.99μg/m³ Good	34.33ppb Good	0.35ppb Good	2.81ppb Good	0.15ppm Good
Hooksett, New Hampshire	30 Good	1.03μg/m³ Good	3.57μg/m³ Good	31.77ppb Good	0.28ppb Good	2.77ppb Good	0.16ppm Good
Goffstown, New Hampshire	26 Good	0.96μg/m³ Good	3.38μg/m³ Good	27.95ppb Good	0.26ppb Good	2.74ppb Good	0.16ppm Good
Claremont, New Hampshire	25 Good	1.39μg/m³ Good	3.54μg/m³ Good	26.51ppb Good	0.29ppb Good	2.45ppb Good	0.14ppm Good
Conway, New Hampshire	25 Good	1.08μg/m³ Good	4.78μg/m³ Good	26.55ppb Good	0.40ppb Good	2.70ppb Good	0.15ppm Good
Keene, New Hampshire	25 Good	1.70μg/m³ Good	7.00μg/m³ Good	27.00ppb Good	0.21ppb Good	2.50ppb Good	0.14ppm Good
Milford, New Hampshire	25 Good	0.82μg/m³ Good	2.15μg/m³ Good	26.53ppb Good	0.25ppb Good	2.67ppb Good	0.16ppm Good
Bedford, New Hampshire	24 Good	0.98μg/m³ Good	3.57μg/m³ Good	25.84ppb Good	0.24ppb Good	2.71ppb Good	0.17ppm Good
Amherst, New Hampshire	24 Good	0.98μg/m³ Good	3.59μg/m³ Good	25.84ppb Good	0.24ppb Good	2.69ppb Good	0.16ppm Good
Derry, New Hampshire	23 Good	1.37μg/m³ Good	3.55μg/m³ Good	25.50ppb Good	0.16ppb Good	2.18ppb Good	0.19ppm Good
Durham, New Hampshire	24 Good	1.49μg/m³ Good	3.62μg/m³ Good	26.23ppb Good	0.57ppb Good	2.70ppb Good	0.15ppm Good
Dover, New Hampshire	24 Good	1.36μg/m³ Good	3.80μg/m³ Good	26.18ppb Good	0.57ppb Good	2.70ppb Good	0.15ppm Good
Exeter, New Hampshire	24 Good	1.80μg/m³ Good	5.00μg/m³ Good	26.05ppb Good	0.49ppb Good	2.27ppb Good	0.15ppm Good
Hudson, New Hampshire	24 Good	1.27μg/m³ Good	2.62μg/m³ Good	26.34ppb Good	0.21ppb Good	2.19ppb Good	0.17ppm Good
Hampton, New Hampshire	24 Good	1.81μg/m³ Good	4.79μg/m³ Good	25.97ppb Good	0.57ppb Good	2.28ppb Good	0.15ppm Good
Manchester, New Hampshire	24 Good	1.06μg/m³ Good	3.56μg/m³ Good	26.41ppb Good	0.24ppb Good	2.73ppb Good	0.17ppm Good
Merrimack, New Hampshire	24 Good	1.23μg/m³ Good	4.13μg/m³ Good	25.54ppb Good	0.22ppb Good	2.69ppb Good	0.17ppm Good
Nashua, New Hampshire	24 Good	1.42μg/m³ Good	4.66μg/m³ Good	26.13ppb Good	0.20ppb Good	2.22ppb Good	0.17ppm Good
Pelham, New Hampshire	24 Good	1.78μg/m³ Good	5.88μg/m³ Good	25.89ppb Good	0.26ppb Good	2.22ppb Good	0.17ppm Good
Raymond, New Hampshire	24 Good	1.27μg/m³ Good	3.77μg/m³ Good	25.86ppb Good	0.36ppb Good	2.66ppb Good	0.16ppm Good
Salem, New Hampshire	24 Good	1.96μg/m³ Good	7.99μg/m³ Good	26.25ppb Good	0.30ppb Good	2.17ppb Good	0.16ppm Good
Rochester, New Hampshire	24 Good	1.02μg/m³ Good	3.54μg/m³ Good	25.84ppb Good	0.48ppb Good	2.60ppb Good	0.15ppm Good
Somersworth, New Hampshire	24 Good	1.26μg/m³ Good	4.59μg/m³ Good	25.95ppb Good	0.55ppb Good	2.60ppb Good	0.15ppm Good
Windham, New Hampshire	24 Good	1.50μg/m³ Good	4.77μg/m³ Good	26.00ppb Good	0.20ppb Good	2.17ppb Good	0.18ppm Good
Londonderry, New Hampshire	23 Good	1.23μg/m³ Good	2.31μg/m³ Good	25.11ppb Good	0.11ppb Good	2.20ppb Good	0.20ppm Good
Hanover, New Hampshire	22 Good	2.07μg/m³ Good	8.82μg/m³ Good	24.16ppb Good	0.30ppb Good	1.73ppb Good	0.14ppm Good
Lebanon, New Hampshire	22 Good	2.08μg/m³ Good	8.90μg/m³ Good	24.10ppb Good	0.30ppb Good	1.73ppb Good	0.14ppm Good
Portsmouth, New Hampshire	22 Good	1.80μg/m³ Good	3.01μg/m³ Good	24.01ppb Good	0.90ppb Good	2.71ppb Good	0.15ppm Good

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

0.20ppm

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 10:00:00 on 2025-11-01.

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 2025-11-02.

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

The real-time air quality index in New Hampshire, USA is 25, 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 1.393 μg/m³.

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

The current PM₁₀ levels in New Hampshire, USA are 4.125 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 0.16 ppm.

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

The current sulfur dioxide (SO₂) levels in New Hampshire, USA are 0.339 ppb.

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

The current ozone (O₃) levels at New Hampshire, USA is 26.55 ppm.

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

The current nitrogen dioxide (NO₂) levels at New Hampshire, USA is 1.857 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-31T23:00:00.000Z	19 \| good	0.738 \| good	4.387 \| good	21.351 \| good	0.92 \| good	2.359 \| good	0.19 \| good
2025-11-01T00:00:00.000Z	20 \| good	0.785 \| good	3.31 \| good	21.674 \| good	1.008 \| good	1.833 \| good	0.176 \| good
2025-11-01T01:00:00.000Z	22 \| good	0.692 \| good	4.64 \| good	23.73 \| good	0.919 \| good	1.773 \| good	0.162 \| good
2025-11-01T02:00:00.000Z	22 \| good	0.732 \| good	3.771 \| good	23.826 \| good	0.921 \| good	1.586 \| good	0.162 \| good
2025-11-01T03:00:00.000Z	24 \| good	0.62 \| good	3.687 \| good	26.081 \| good	0.965 \| good	1.139 \| good	0.162 \| good
2025-11-01T04:00:00.000Z	28 \| good	0.533 \| good	3.944 \| good	30.354 \| good	1.01 \| good	1.025 \| good	0.162 \| good
2025-11-01T05:00:00.000Z	28 \| good	0.391 \| good	4.767 \| good	29.993 \| good	0.952 \| good	1.487 \| good	0.162 \| good
2025-11-01T06:00:00.000Z	29 \| good	0.355 \| good	3.199 \| good	30.507 \| good	0.949 \| good	1.485 \| good	0.162 \| good
2025-11-01T07:00:00.000Z	28 \| good	0.272 \| good	3.224 \| good	30.09 \| good	0.94 \| good	1.482 \| good	0.162 \| good
2025-11-01T08:00:00.000Z	24 \| good	0.151 \| good	2.033 \| good	26.498 \| good	0.973 \| good	1.965 \| good	0.162 \| good
2025-11-01T09:00:00.000Z	24 \| good	0.237 \| good	3.509 \| good	25.821 \| good	1.059 \| good	0.908 \| good	0.162 \| good
2025-11-01T10:00:00.000Z	25 \| good	0.196 \| good	1.563 \| good	27.136 \| good	0.973 \| good	1.25 \| good	0.162 \| good
2025-11-01T11:00:00.000Z	25 \| good	0.279 \| good	2.055 \| good	27.217 \| good	1.053 \| good	1.002 \| good	0.162 \| good
2025-11-01T12:00:00.000Z	25 \| good	0.223 \| good	2.12 \| good	27.071 \| good	1.051 \| good	1.663 \| good	0.162 \| good
2025-11-01T13:00:00.000Z	25 \| good	0.279 \| good	1.427 \| good	27.364 \| good	1.041 \| good	1.85 \| good	0.162 \| good
2025-11-01T14:00:00.000Z	27 \| good	0.555 \| good	2.628 \| good	29.061 \| good	0.97 \| good	1.283 \| good	0.162 \| good
2025-11-01T15:00:00.000Z	27 \| good	0.785 \| good	4.913 \| good	29.423 \| good	0.97 \| good	2.066 \| good	0.176 \| good
2025-11-01T16:00:00.000Z	27 \| good	1.027 \| good	3.868 \| good	28.853 \| good	1.002 \| good	1.65 \| good	0.162 \| good
2025-11-01T17:00:00.000Z	28 \| good	1.167 \| good	3.094 \| good	30.103 \| good	1.051 \| good	1.552 \| good	0.162 \| good
2025-11-01T18:00:00.000Z	29 \| good	1.255 \| good	5.202 \| good	30.788 \| good	1.054 \| good	1.529 \| good	0.162 \| good
2025-11-01T19:00:00.000Z	31 \| good	1.438 \| good	5.639 \| good	32.993 \| good	1.04 \| good	1.368 \| good	0.162 \| good
2025-11-01T20:00:00.000Z	31 \| good	1.547 \| good	4.192 \| good	33.353 \| good	1.001 \| good	1.531 \| good	0.176 \| good
2025-11-01T21:00:00.000Z	31 \| good	1.461 \| good	3.555 \| good	33.492 \| good	1.003 \| good	1.553 \| good	0.162 \| good
2025-11-01T22:00:00.000Z	31 \| good	1.296 \| good	3.836 \| good	32.682 \| good	1.005 \| good	1.895 \| good	0.162 \| good
2025-11-01T23:00:00.000Z	30 \| good	1.204 \| good	2.585 \| good	31.867 \| good	1.074 \| good	1.48 \| good	0.176 \| good
2025-11-02T00:00:00.000Z	29 \| good	1.311 \| good	3.777 \| good	30.724 \| good	0.976 \| good	2.575 \| good	0.19 \| good
2025-11-02T01:00:00.000Z	27 \| good	1.654 \| good	5.187 \| good	28.808 \| good	1.009 \| good	2.856 \| good	0.176 \| good
2025-11-02T02:00:00.000Z	24 \| good	1.623 \| good	5.994 \| good	25.516 \| good	1.014 \| good	3.471 \| good	0.19 \| good
2025-11-02T03:00:00.000Z	23 \| good	1.941 \| good	8.045 \| good	24.965 \| good	0.108 \| good	1.384 \| good	0.132 \| good
2025-11-02T04:00:00.000Z	24 \| good	1.462 \| good	7.987 \| good	25.626 \| good	1.086 \| good	5.106 \| good	0.2 \| good
2025-11-02T05:00:00.000Z	24 \| good	1.665 \| good	6.129 \| good	25.52 \| good	1.002 \| good	4.03 \| good	0.2 \| good
2025-11-02T06:00:00.000Z	24 \| good	1.319 \| good	4.077 \| good	25.532 \| good	1.001 \| good	4.921 \| good	0.186 \| good
2025-11-02T07:00:00.000Z	24 \| good	1.208 \| good	2.769 \| good	25.63 \| good	1.001 \| good	6.158 \| good	0.186 \| good
2025-11-02T08:00:00.000Z	23 \| good	1.452 \| good	3.807 \| good	24.875 \| good	1 \| good	7.515 \| good	0.186 \| good
2025-11-02T09:00:00.000Z	21 \| good	1.332 \| good	5.053 \| good	23.435 \| good	1 \| good	7.101 \| good	0.162 \| good
2025-11-02T10:00:00.000Z	21 \| good	1.278 \| good	4.199 \| good	22.918 \| good	0.999 \| good	9.2 \| good	0.186 \| good
2025-11-02T11:00:00.000Z	18 \| good	1.448 \| good	3.821 \| good	19.322 \| good	0.998 \| good	11.114 \| good	0.186 \| good
2025-11-02T12:00:00.000Z	18 \| good	1.539 \| good	2.909 \| good	19.394 \| good	0.281 \| good	10.165 \| good	0.2 \| good
2025-11-02T13:00:00.000Z	16 \| good	1.557 \| good	2.636 \| good	16.64 \| good	0.268 \| good	9.254 \| good	0.252 \| good
2025-11-02T14:00:00.000Z	16 \| good	1.512 \| good	7.017 \| good	16.899 \| good	0.278 \| good	6.911 \| good	0.189 \| good
2025-11-02T15:00:00.000Z	17 \| good	1.76 \| good	5.442 \| good	17.777 \| good	0.29 \| good	3.437 \| good	0.156 \| good
2025-11-02T16:00:00.000Z	19 \| good	1.516 \| good	2.31 \| good	21.322 \| good	0.318 \| good	1.874 \| good	0.156 \| good
2025-11-02T17:00:00.000Z	21 \| good	1.39 \| good	4.586 \| good	23.193 \| good	0.318 \| good	1.363 \| good	0.156 \| good
2025-11-02T18:00:00.000Z	22 \| good	1.352 \| good	4.433 \| good	24 \| good	0.302 \| good	1.387 \| good	0.156 \| good
2025-11-02T19:00:00.000Z	26 \| good	1.361 \| good	3.145 \| good	28.375 \| good	0.29 \| good	1.989 \| good	0.156 \| good
2025-11-02T20:00:00.000Z	28 \| good	1.18 \| good	3.127 \| good	29.639 \| good	0.305 \| good	2.097 \| good	0.156 \| good
2025-11-02T21:00:00.000Z	31 \| good	1.163 \| good	3.524 \| good	34.309 \| good	0.306 \| good	2.775 \| good	0.156 \| good
2025-11-02T22:00:00.000Z	25 \| good	1.382 \| good	4.462 \| good	26.694 \| good	0.338 \| good	2.467 \| good	0.16 \| good
2025-11-02T21:00:00.000Z	33 \| good	1.686 \| good	6.892 \| good	35.525 \| good	0.154 \| good	1.484 \| good	0.134 \| good
2025-11-02T22:00:00.000Z	35 \| good	1.917 \| good	7.866 \| good	38.049 \| good	0.199 \| good	2.884 \| good	0.147 \| good
2025-11-02T23:00:00.000Z	36 \| good	2.188 \| good	8.938 \| good	39.333 \| good	0.244 \| good	4.284 \| good	0.16 \| good
2025-11-03T00:00:00.000Z	29 \| good	2.524 \| good	10.075 \| good	31.274 \| good	0.288 \| good	5.684 \| good	0.174 \| good
2025-11-03T01:00:00.000Z	24 \| good	3.027 \| good	12.264 \| good	26.232 \| good	0.342 \| good	5.954 \| good	0.177 \| good
2025-11-03T02:00:00.000Z	19 \| good	3.439 \| good	15.206 \| good	20.936 \| good	0.396 \| good	6.225 \| good	0.181 \| good
2025-11-03T03:00:00.000Z	22 \| good	3.668 \| good	15.807 \| good	13.799 \| good	0.449 \| good	6.495 \| good	0.185 \| good
2025-11-03T04:00:00.000Z	16 \| good	3.269 \| good	14.383 \| good	14.405 \| good	0.463 \| good	6.409 \| good	0.187 \| good
2025-11-03T05:00:00.000Z	17 \| good	2.853 \| good	11.876 \| good	18.39 \| good	0.477 \| good	6.322 \| good	0.188 \| good
2025-11-03T06:00:00.000Z	16 \| good	2.587 \| good	10.733 \| good	17.257 \| good	0.491 \| good	6.236 \| good	0.189 \| good
2025-11-03T07:00:00.000Z	16 \| good	2.98 \| good	12.306 \| good	15.957 \| good	0.587 \| good	6.084 \| good	0.188 \| good
2025-11-03T08:00:00.000Z	16 \| good	3.445 \| good	15.206 \| good	13.223 \| good	0.684 \| good	5.931 \| good	0.187 \| good
2025-11-03T09:00:00.000Z	27 \| good	4.518 \| good	19.403 \| good	15.595 \| good	0.78 \| good	5.779 \| good	0.185 \| good
2025-11-03T10:00:00.000Z	27 \| good	4.64 \| good	20.207 \| good	14.991 \| good	1.088 \| good	7.813 \| good	0.207 \| good
2025-11-03T11:00:00.000Z	27 \| good	4.755 \| good	20.906 \| good	11.177 \| good	1.395 \| good	9.847 \| good	0.229 \| good
2025-11-03T12:00:00.000Z	33 \| good	6.129 \| good	27.375 \| good	10.272 \| good	1.702 \| good	11.882 \| good	0.251 \| good
2025-11-03T13:00:00.000Z	49 \| good	8.81 \| good	38.762 \| good	15.145 \| good	2.078 \| good	10.177 \| good	0.241 \| good
2025-11-03T14:00:00.000Z	56 \| moderate	12.435 \| fine	55.763 \| fine	24.209 \| good	2.454 \| good	8.473 \| good	0.231 \| good
2025-11-03T15:00:00.000Z	52 \| moderate	10.162 \| good	44.778 \| good	36.542 \| good	2.83 \| good	6.768 \| good	0.221 \| good
2025-11-03T16:00:00.000Z	44 \| good	7.588 \| good	33.586 \| good	38.658 \| good	2.469 \| good	5.517 \| good	0.197 \| good
2025-11-03T17:00:00.000Z	44 \| good	7.61 \| good	33.481 \| good	41.318 \| good	2.108 \| good	4.266 \| good	0.174 \| good
2025-11-03T18:00:00.000Z	41 \| good	6.429 \| good	28.652 \| good	43.927 \| good	1.747 \| good	3.015 \| good	0.15 \| good
2025-11-03T19:00:00.000Z	43 \| good	5.943 \| good	26.4 \| good	46.153 \| good	1.64 \| good	3.216 \| good	0.149 \| good
2025-11-03T20:00:00.000Z	44 \| good	5.749 \| good	24.799 \| good	47.005 \| good	1.533 \| good	3.418 \| good	0.147 \| good
2025-11-03T21:00:00.000Z	42 \| good	5.649 \| good	24.43 \| good	44.782 \| good	1.426 \| good	3.619 \| good	0.146 \| good
2025-11-03T22:00:00.000Z	40 \| good	5.979 \| good	26.354 \| good	42.604 \| good	1.461 \| good	4.082 \| good	0.15 \| good
2025-11-03T23:00:00.000Z	44 \| good	6.089 \| good	27.335 \| good	48.11 \| good	1.495 \| good	4.545 \| good	0.154 \| good
2025-11-04T00:00:00.000Z	47 \| good	5.351 \| good	22.97 \| good	50.704 \| good	1.529 \| good	5.009 \| good	0.157 \| good
2025-11-04T01:00:00.000Z	44 \| good	4.069 \| good	17.893 \| good	47.955 \| good	1.52 \| good	4.07 \| good	0.154 \| good
2025-11-04T02:00:00.000Z	44 \| good	3.081 \| good	13.337 \| good	46.862 \| good	1.511 \| good	3.132 \| good	0.151 \| good
2025-11-04T03:00:00.000Z	40 \| good	2.804 \| good	11.653 \| good	42.672 \| good	1.502 \| good	2.194 \| good	0.148 \| good
2025-11-04T04:00:00.000Z	39 \| good	2.22 \| good	9.031 \| good	41.877 \| good	1.151 \| good	1.95 \| good	0.145 \| good
2025-11-04T05:00:00.000Z	39 \| good	1.461 \| good	6 \| good	42.15 \| good	0.799 \| good	1.707 \| good	0.141 \| good
2025-11-04T06:00:00.000Z	35 \| good	1.417 \| good	5.687 \| good	38.295 \| good	0.447 \| good	1.463 \| good	0.138 \| good
2025-11-04T07:00:00.000Z	34 \| good	0.988 \| good	4 \| good	36.626 \| good	0.39 \| good	1.229 \| good	0.134 \| good
2025-11-04T08:00:00.000Z	32 \| good	0.876 \| good	3.086 \| good	35.49 \| good	0.334 \| good	0.996 \| good	0.129 \| good
2025-11-04T09:00:00.000Z	31 \| good	1.041 \| good	4.058 \| good	34.442 \| good	0.277 \| good	0.762 \| good	0.124 \| good
2025-11-04T10:00:00.000Z	31 \| good	0.948 \| good	3.868 \| good	33.378 \| good	0.274 \| good	0.921 \| good	0.125 \| good
2025-11-04T11:00:00.000Z	29 \| good	0.936 \| good	3.868 \| good	31.171 \| good	0.27 \| good	1.079 \| good	0.125 \| good
2025-11-04T12:00:00.000Z	31 \| good	0.883 \| good	3.119 \| good	33.662 \| good	0.266 \| good	1.237 \| good	0.125 \| good
2025-11-04T13:00:00.000Z	33 \| good	0.897 \| good	3.687 \| good	35.662 \| good	0.276 \| good	1.015 \| good	0.123 \| good
2025-11-04T14:00:00.000Z	34 \| good	1.035 \| good	4 \| good	36.572 \| good	0.285 \| good	0.793 \| good	0.122 \| good
2025-11-04T15:00:00.000Z	33 \| good	0.78 \| good	3 \| good	36.36 \| good	0.295 \| good	0.571 \| good	0.12 \| good
2025-11-04T16:00:00.000Z	34 \| good	0.484 \| good	1.969 \| good	36.943 \| good	0.311 \| good	0.521 \| good	0.118 \| good
2025-11-04T17:00:00.000Z	34 \| good	0.488 \| good	1.914 \| good	36.879 \| good	0.328 \| good	0.472 \| good	0.116 \| good
2025-11-04T18:00:00.000Z	33 \| good	0.26 \| good	0.845 \| good	35.699 \| good	0.345 \| good	0.423 \| good	0.115 \| good
2025-11-04T19:00:00.000Z	32 \| good	0.531 \| good	2 \| good	35.375 \| good	0.337 \| good	0.604 \| good	0.113 \| good
2025-11-04T20:00:00.000Z	34 \| good	0.866 \| good	3.086 \| good	36.748 \| good	0.329 \| good	0.785 \| good	0.112 \| 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?