What is the current concentration of PM10 in Salem, New Hampshire?

The current PM10 concentration at Salem, New Hampshire is 20.471 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Salem, New Hampshire?

The current sulfur dioxide (SO2) concentration at Salem, New Hampshire is 0.815 ppb.

What is the current concentration of ozone (O3) in Salem, New Hampshire?

The current ozone (O3) concentration at Salem, New Hampshire is 37.9 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Salem, New Hampshire?

The current nitrogen dioxide (NO2) concentration at Salem, New Hampshire is 0.936 ppb.

Salem, New Hampshire live air quality index now

Q: What is the current concentration of PM2.5 in Salem, New Hampshire?

The current PM2.5 concentration at Salem, New Hampshire is 5.426 μg/m3.

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

Salem, New Hampshire

Last updated: ... (Local time)

Major air pollutants in Salem, New Hampshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.75 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

21.74 μg/m³

155

255

425

605+

Ozone (O₃)

30.58 ppb

201

201+

Sulfur Dioxide (SO₂)

0.78 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.93 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Salem, New Hampshire

Scroll To Air Quality Map

Track live Salem, New Hampshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-07T03:00:00.000Z	33 \| good	6.456 \| good	28.778 \| good	31.075 \| good	0.263 \| good	4.524 \| good	0.215 \| good
2026-08-07T04:00:00.000Z	33 \| good	4.238 \| good	16.68 \| good	35.762 \| good	0.742 \| good	5.103 \| good	0.245 \| good
2026-08-07T05:00:00.000Z	30 \| good	4.256 \| good	16.42 \| good	32.132 \| good	0.756 \| good	7.661 \| good	0.245 \| good
2026-08-07T06:00:00.000Z	28 \| good	4.266 \| good	16.031 \| good	30.076 \| good	0.757 \| good	7.234 \| good	0.245 \| good
2026-08-07T07:00:00.000Z	25 \| good	3.881 \| good	14.54 \| good	26.562 \| good	0.922 \| good	7.03 \| good	0.245 \| good
2026-08-07T08:00:00.000Z	22 \| good	3.803 \| good	14.567 \| good	23.089 \| good	0.896 \| good	5.313 \| good	0.211 \| good
2026-08-07T09:00:00.000Z	22 \| good	4.354 \| good	17.265 \| good	18.5 \| good	0.788 \| good	5.069 \| good	0.228 \| good
2026-08-07T10:00:00.000Z	27 \| good	4.905 \| good	18.392 \| good	17.949 \| good	0.926 \| good	5.103 \| good	0.234 \| good
2026-08-07T11:00:00.000Z	33 \| good	5.512 \| good	20.728 \| good	14.195 \| good	0.834 \| good	5.221 \| good	0.279 \| good
2026-08-07T12:00:00.000Z	33 \| good	5.611 \| good	21.49 \| good	12.137 \| good	0.833 \| good	6.057 \| good	0.279 \| good
2026-08-07T13:00:00.000Z	33 \| good	5.643 \| good	22.179 \| good	15.531 \| good	1.088 \| good	3.703 \| good	0.234 \| good
2026-08-07T14:00:00.000Z	27 \| good	4.562 \| good	18.067 \| good	20.14 \| good	1.017 \| good	1.805 \| good	0.3 \| good
2026-08-07T15:00:00.000Z	23 \| good	4.417 \| good	16.44 \| good	25.342 \| good	0.905 \| good	2.207 \| good	0.228 \| good
2026-08-07T16:00:00.000Z	27 \| good	4.367 \| good	16.657 \| good	29.169 \| good	0.885 \| good	1.701 \| good	0.228 \| good
2026-08-07T17:00:00.000Z	31 \| good	4.495 \| good	16.827 \| good	33.31 \| good	0.919 \| good	2.873 \| good	0.228 \| good
2026-08-07T18:00:00.000Z	33 \| good	4.528 \| good	17.326 \| good	36.478 \| good	0.852 \| good	1.87 \| good	0.245 \| good
2026-08-07T19:00:00.000Z	35 \| good	4.673 \| good	17.6 \| good	38.092 \| good	0.801 \| good	2.524 \| good	0.245 \| good
2026-08-07T20:00:00.000Z	38 \| good	4.878 \| good	18.167 \| good	40.954 \| good	0.762 \| good	1.432 \| good	0.245 \| good
2026-08-07T21:00:00.000Z	39 \| good	5.015 \| good	18.407 \| good	42.275 \| good	0.762 \| good	1.763 \| good	0.245 \| good
2026-08-07T22:00:00.000Z	40 \| good	5.267 \| good	20.436 \| good	43.131 \| good	0.802 \| good	3.252 \| good	0.262 \| good
2026-08-07T23:00:00.000Z	39 \| good	5.377 \| good	21.62 \| good	42.429 \| good	0.827 \| good	3.091 \| good	0.262 \| good
2026-08-08T00:00:00.000Z	35 \| good	5.55 \| good	19.95 \| good	38.198 \| good	0.841 \| good	5.704 \| good	0.334 \| good
2026-08-08T01:00:00.000Z	33 \| good	5.959 \| good	21.724 \| good	33.598 \| good	0.827 \| good	11.945 \| good	0.362 \| good
2026-08-08T02:00:00.000Z	33 \| good	6.446 \| good	23.743 \| good	32.694 \| good	0.729 \| good	10.622 \| good	0.368 \| good
2026-08-08T03:00:00.000Z	64 \| moderate	15.711 \| fine	69.767 \| fine	28.95 \| good	0.349 \| good	3.195 \| good	0.213 \| good
2026-08-08T04:00:00.000Z	38 \| good	6.923 \| good	26.436 \| good	21.202 \| good	0.846 \| good	5.445 \| good	0.289 \| good
2026-08-08T05:00:00.000Z	38 \| good	6.538 \| good	25.359 \| good	20.212 \| good	0.969 \| good	4.657 \| good	0.255 \| good
2026-08-08T06:00:00.000Z	38 \| good	6.57 \| good	26.597 \| good	20.352 \| good	0.969 \| good	3.848 \| good	0.255 \| good
2026-08-08T07:00:00.000Z	33 \| good	5.845 \| good	21.555 \| good	27.344 \| good	0.971 \| good	2.693 \| good	0.217 \| good
2026-08-08T08:00:00.000Z	27 \| good	5.096 \| good	18.875 \| good	29.423 \| good	0.911 \| good	2.975 \| good	0.211 \| good
2026-08-08T09:00:00.000Z	30 \| good	4.211 \| good	16.173 \| good	32.248 \| good	0.845 \| good	4.76 \| good	0.211 \| good
2026-08-08T10:00:00.000Z	31 \| good	4.151 \| good	15.612 \| good	33.156 \| good	0.831 \| good	5.271 \| good	0.211 \| good
2026-08-08T11:00:00.000Z	31 \| good	4.079 \| good	15.476 \| good	33.389 \| good	0.831 \| good	5.346 \| good	0.245 \| good
2026-08-08T12:00:00.000Z	28 \| good	3.957 \| good	16.127 \| good	30.489 \| good	0.864 \| good	4.875 \| good	0.279 \| good
2026-08-08T13:00:00.000Z	28 \| good	3.968 \| good	16.183 \| good	29.641 \| good	0.864 \| good	4.178 \| good	0.279 \| good
2026-08-08T14:00:00.000Z	26 \| good	4.331 \| good	17.08 \| good	27.779 \| good	0.932 \| good	1.045 \| good	0.228 \| good
2026-08-08T15:00:00.000Z	27 \| good	4.644 \| good	17.695 \| good	29.009 \| good	0.937 \| good	1.579 \| good	0.228 \| good
2026-08-08T16:00:00.000Z	29 \| good	4.982 \| good	19.518 \| good	30.727 \| good	1.01 \| good	2.222 \| good	0.228 \| good
2026-08-08T17:00:00.000Z	31 \| good	5.155 \| good	19.65 \| good	34.36 \| good	0.965 \| good	2.649 \| good	0.228 \| good
2026-08-08T18:00:00.000Z	32 \| good	5.265 \| good	20.337 \| good	34.673 \| good	0.935 \| good	1.641 \| good	0.228 \| good
2026-08-08T19:00:00.000Z	34 \| good	5.305 \| good	20.298 \| good	37.209 \| good	0.836 \| good	2.969 \| good	0.245 \| good
2026-08-08T20:00:00.000Z	36 \| good	5.437 \| good	20.607 \| good	39.289 \| good	0.878 \| good	3.318 \| good	0.245 \| good
2026-08-08T21:00:00.000Z	37 \| good	5.461 \| good	20.646 \| good	39.957 \| good	0.838 \| good	2.293 \| good	0.234 \| good
2026-08-08T22:00:00.000Z	35 \| good	5.426 \| good	20.471 \| good	37.9 \| good	0.815 \| good	0.936 \| good	0.234 \| good
2026-08-08T23:00:00.000Z	33 \| good	5.603 \| good	21.137 \| good	36.374 \| good	0.809 \| good	2.625 \| good	0.234 \| good
2026-08-09T00:00:00.000Z	33 \| good	5.762 \| good	20.889 \| good	33.303 \| good	0.784 \| good	2.563 \| good	0.206 \| good
2026-08-09T01:00:00.000Z	33 \| good	5.749 \| good	21.739 \| good	30.582 \| good	0.78 \| good	1.929 \| good	0.228 \| good
2026-08-09T02:00:00.000Z	33 \| good	5.749 \| good	21.739 \| good	30.582 \| good	0.78 \| good	1.929 \| good	0.228 \| good
2026-08-09T00:00:00.000Z	60 \| moderate	13.62 \| fine	60.654 \| fine	37.674 \| good	0.222 \| good	2.406 \| good	0.209 \| good
2026-08-09T01:00:00.000Z	60 \| moderate	14.25 \| fine	63.566 \| fine	41.745 \| good	0.272 \| good	3.684 \| good	0.225 \| good
2026-08-09T02:00:00.000Z	58 \| moderate	13.168 \| fine	58.812 \| fine	37.344 \| good	0.268 \| good	3.6 \| good	0.223 \| good
2026-08-09T03:00:00.000Z	54 \| moderate	11.356 \| good	50.632 \| good	29.529 \| good	0.254 \| good	3.407 \| good	0.22 \| good
2026-08-09T04:00:00.000Z	52 \| moderate	9.855 \| good	43.748 \| good	26.113 \| good	0.262 \| good	3.73 \| good	0.222 \| good
2026-08-09T05:00:00.000Z	52 \| moderate	9.555 \| good	42.076 \| good	23.288 \| good	0.256 \| good	3.777 \| good	0.221 \| good
2026-08-09T06:00:00.000Z	49 \| good	8.59 \| good	37.601 \| good	24.169 \| good	0.235 \| good	3.324 \| good	0.211 \| good
2026-08-09T07:00:00.000Z	44 \| good	7.825 \| good	34.359 \| good	27.43 \| good	0.223 \| good	3.154 \| good	0.203 \| good
2026-08-09T08:00:00.000Z	44 \| good	7.827 \| good	34.252 \| good	28.626 \| good	0.219 \| good	2.967 \| good	0.197 \| good
2026-08-09T09:00:00.000Z	44 \| good	7.985 \| good	34.926 \| good	26.865 \| good	0.222 \| good	2.971 \| good	0.194 \| good
2026-08-09T10:00:00.000Z	44 \| good	8.207 \| good	36.031 \| good	26.924 \| good	0.229 \| good	2.98 \| good	0.193 \| good
2026-08-09T11:00:00.000Z	44 \| good	8.499 \| good	37.465 \| good	28.296 \| good	0.239 \| good	2.968 \| good	0.196 \| good
2026-08-09T12:00:00.000Z	49 \| good	8.537 \| good	37.582 \| good	32.647 \| good	0.263 \| good	1.779 \| good	0.194 \| good
2026-08-09T13:00:00.000Z	49 \| good	9.106 \| good	40.119 \| good	37.391 \| good	0.279 \| good	1.096 \| good	0.193 \| good
2026-08-09T14:00:00.000Z	52 \| moderate	9.696 \| good	43.011 \| good	42.14 \| good	0.292 \| good	0.789 \| good	0.19 \| good
2026-08-09T15:00:00.000Z	52 \| moderate	9.536 \| good	42.463 \| good	44.363 \| good	0.298 \| good	0.629 \| good	0.189 \| good
2026-08-09T16:00:00.000Z	49 \| good	8.85 \| good	38.967 \| good	45.837 \| good	0.3 \| good	0.537 \| good	0.19 \| good
2026-08-09T17:00:00.000Z	44 \| good	8.477 \| good	37.051 \| good	46.414 \| good	0.299 \| good	0.513 \| good	0.192 \| good
2026-08-09T18:00:00.000Z	41 \| good	7.377 \| good	32.543 \| good	43.995 \| good	0.286 \| good	0.5 \| good	0.192 \| good
2026-08-09T19:00:00.000Z	37 \| good	5.942 \| good	26.597 \| good	39.65 \| good	0.298 \| good	0.484 \| good	0.19 \| good
2026-08-09T20:00:00.000Z	35 \| good	4.837 \| good	20.999 \| good	37.559 \| good	0.312 \| good	0.501 \| good	0.188 \| good
2026-08-09T21:00:00.000Z	32 \| good	4.713 \| good	20.594 \| good	34.832 \| good	0.32 \| good	0.565 \| good	0.184 \| good
2026-08-09T22:00:00.000Z	30 \| good	5.189 \| good	22.374 \| good	32.156 \| good	0.306 \| good	0.665 \| good	0.18 \| good
2026-08-09T23:00:00.000Z	33 \| good	6.365 \| good	28.042 \| good	26.16 \| good	0.284 \| good	0.881 \| good	0.177 \| good
2026-08-10T00:00:00.000Z	44 \| good	7.596 \| good	33.257 \| good	21.871 \| good	0.263 \| good	1.236 \| good	0.175 \| good
2026-08-10T01:00:00.000Z	44 \| good	8.49 \| good	37.572 \| good	19.364 \| good	0.245 \| good	1.897 \| good	0.177 \| good
2026-08-10T02:00:00.000Z	49 \| good	8.888 \| good	39.577 \| good	17.732 \| good	0.224 \| good	2.303 \| good	0.177 \| good
2026-08-10T03:00:00.000Z	49 \| good	8.877 \| good	39.279 \| good	16.982 \| good	0.21 \| good	2.744 \| good	0.178 \| good
2026-08-10T04:00:00.000Z	49 \| good	8.78 \| good	38.655 \| good	16.676 \| good	0.19 \| good	2.872 \| good	0.177 \| good
2026-08-10T05:00:00.000Z	44 \| good	8.498 \| good	37.412 \| good	15.697 \| good	0.168 \| good	2.73 \| good	0.174 \| good
2026-08-10T06:00:00.000Z	44 \| good	7.736 \| good	33.992 \| good	15.852 \| good	0.156 \| good	2.73 \| good	0.172 \| good
2026-08-10T07:00:00.000Z	38 \| good	7.022 \| good	30.934 \| good	15.303 \| good	0.147 \| good	2.772 \| good	0.17 \| good
2026-08-10T08:00:00.000Z	38 \| good	6.637 \| good	29.386 \| good	14.298 \| good	0.142 \| good	2.834 \| good	0.169 \| good
2026-08-10T09:00:00.000Z	38 \| good	6.597 \| good	29.369 \| good	11.313 \| good	0.143 \| good	3.177 \| good	0.171 \| good
2026-08-10T10:00:00.000Z	38 \| good	6.741 \| good	29.814 \| good	10.743 \| good	0.155 \| good	4.18 \| good	0.18 \| good
2026-08-10T11:00:00.000Z	38 \| good	7.107 \| good	31.294 \| good	12.687 \| good	0.194 \| good	5.594 \| good	0.201 \| good
2026-08-10T12:00:00.000Z	38 \| good	6.92 \| good	30.592 \| good	19.071 \| good	0.187 \| good	3.938 \| good	0.201 \| good
2026-08-10T13:00:00.000Z	38 \| good	7.262 \| good	32.242 \| good	26.406 \| good	0.162 \| good	1.806 \| good	0.172 \| good
2026-08-10T14:00:00.000Z	44 \| good	7.529 \| good	33.097 \| good	34.496 \| good	0.185 \| good	1.213 \| good	0.164 \| good
2026-08-10T15:00:00.000Z	44 \| good	7.554 \| good	33.191 \| good	41.008 \| good	0.201 \| good	0.965 \| good	0.159 \| good
2026-08-10T16:00:00.000Z	41 \| good	7.476 \| good	33.009 \| good	44.09 \| good	0.201 \| good	0.798 \| good	0.152 \| good
2026-08-10T17:00:00.000Z	43 \| good	7.371 \| good	32.491 \| good	46.368 \| good	0.194 \| good	0.705 \| good	0.148 \| good
2026-08-10T18:00:00.000Z	43 \| good	7.403 \| good	32.506 \| good	45.658 \| good	0.184 \| good	0.662 \| good	0.145 \| good
2026-08-10T19:00:00.000Z	44 \| good	7.554 \| good	33.395 \| good	42.249 \| good	0.178 \| good	0.66 \| good	0.145 \| good
2026-08-10T20:00:00.000Z	49 \| good	9.014 \| good	39.567 \| good	43.757 \| good	0.186 \| good	0.659 \| good	0.151 \| good
2026-08-10T21:00:00.000Z	49 \| good	8.969 \| good	39.658 \| good	41.358 \| good	0.217 \| good	0.75 \| good	0.16 \| good
2026-08-10T22:00:00.000Z	38 \| good	6.915 \| good	30.609 \| good	31.725 \| good	0.266 \| good	1.026 \| good	0.173 \| good
2026-08-10T23:00:00.000Z	38 \| good	7.178 \| good	31.598 \| good	27.593 \| good	0.314 \| good	1.488 \| good	0.185 \| good

Salem

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Salem, New Hampshire air quality map: Track AQI near you

0.23ppm

How accurate is New Hampshire, USA air quality data?

Air quality data and pollutant measurements for New Hampshire, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Salem, New Hampshire updated?

The air quality for Salem, New Hampshire is updated every hour.

When was the worst air quality at Salem, New Hampshire in the last 24 hrs?

The worst air quality in Salem, New Hampshire in the last 24 hours was observed at 03:00:00 on 2026-08-08.

When was the best air quality at Salem, New Hampshire in the last 24 hrs?

In the last 24 hrs, the best air quality in Salem, New Hampshire was observed at 02:00:00 on 2026-08-08.

What is the current air quality in Salem, New Hampshire?

The current air quality in Salem, New Hampshire is 35, categorized as Good based on real-time data.

What pollutant is the most common in Salem, New Hampshire?

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

What should I do if the air quality in Salem, New Hampshire is poor?

If the air quality in Salem, New Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Salem, New Hampshire?

The current PM_2.5 concentration at Salem, New Hampshire is 5.426 μg/m³.

What is the current concentration of PM₁₀ in Salem, New Hampshire?

The current PM₁₀ concentration at Salem, New Hampshire is 20.471 μg/m³.

What is the current concentration of carbon monoxide (CO) in Salem, New Hampshire?

The current carbon monoxide (CO) concentration at Salem, New Hampshire is 0.234 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Salem, New Hampshire?

The current sulfur dioxide (SO₂) concentration at Salem, New Hampshire is 0.815 ppb.

What is the current concentration of ozone (O₃) in Salem, New Hampshire?

The current ozone (O₃) concentration at Salem, New Hampshire is 37.9 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Salem, New Hampshire?

The current nitrogen dioxide (NO₂) concentration at Salem, New Hampshire is 0.936 ppb.

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