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

The current PM10 concentration at Salem, New Hampshire is 35.628 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 0.523 ppb.

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

The current ozone (O3) concentration at Salem, New Hampshire is 30.029 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 8.9 ppb.

Salem, New Hampshire live air quality index now

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

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)

Moderate

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)

10.71 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.60 μg/m³

155

255

425

605+

Ozone (O₃)

18.76 ppb

201

201+

Sulfur Dioxide (SO₂)

0.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.68 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2025-07-29T08:00:00.000Z	58 \| moderate	13.197 \| fine	34.709 \| good	11.704 \| good	0.325 \| good	13.777 \| good	0.158 \| good
2025-07-29T09:00:00.000Z	58 \| moderate	13.429 \| fine	38.182 \| good	10.223 \| good	0.247 \| good	7.932 \| good	0.16 \| good
2025-07-29T10:00:00.000Z	60 \| moderate	13.509 \| fine	41.401 \| good	9.406 \| good	0.328 \| good	9.333 \| good	0.16 \| good
2025-07-29T11:00:00.000Z	60 \| moderate	13.739 \| fine	41.871 \| good	10.205 \| good	0.182 \| good	9.783 \| good	0.169 \| good
2025-07-29T12:00:00.000Z	60 \| moderate	13.73 \| fine	40.686 \| good	11.342 \| good	0.187 \| good	11.548 \| good	0.189 \| good
2025-07-29T13:00:00.000Z	60 \| moderate	14.314 \| fine	42.655 \| good	15.147 \| good	1.012 \| good	10.757 \| good	0.176 \| good
2025-07-29T14:00:00.000Z	60 \| moderate	14.418 \| fine	42.742 \| good	25.209 \| good	0.495 \| good	8.41 \| good	0.193 \| good
2025-07-29T15:00:00.000Z	60 \| moderate	14.483 \| fine	40.013 \| good	31.247 \| good	1.736 \| good	5.59 \| good	0.264 \| good
2025-07-29T16:00:00.000Z	60 \| moderate	14.302 \| fine	36.943 \| good	36.078 \| good	0.744 \| good	5.975 \| good	0.241 \| good
2025-07-29T17:00:00.000Z	58 \| moderate	13.436 \| fine	37.38 \| good	41.198 \| good	1.515 \| good	6.628 \| good	0.241 \| good
2025-07-29T18:00:00.000Z	56 \| moderate	12.24 \| fine	35.123 \| good	43.941 \| good	2.916 \| good	5.817 \| good	0.223 \| good
2025-07-29T19:00:00.000Z	54 \| moderate	11.255 \| good	34.176 \| good	45.423 \| good	2.76 \| good	6.979 \| good	0.206 \| good
2025-07-29T20:00:00.000Z	52 \| moderate	10.352 \| good	31.674 \| good	45.691 \| good	1.671 \| good	4.945 \| good	0.241 \| good
2025-07-29T21:00:00.000Z	49 \| good	9.323 \| good	27.275 \| good	47.4 \| good	1.212 \| good	3.743 \| good	0.241 \| good
2025-07-29T22:00:00.000Z	49 \| good	8.788 \| good	28.139 \| good	45.765 \| good	2.696 \| good	3.499 \| good	0.217 \| good
2025-07-29T23:00:00.000Z	49 \| good	8.502 \| good	26.538 \| good	43.331 \| good	1.332 \| good	3.601 \| good	0.217 \| good
2025-07-30T00:00:00.000Z	44 \| good	8.034 \| good	23.262 \| good	41.713 \| good	1.308 \| good	4.44 \| good	0.21 \| good
2025-07-30T01:00:00.000Z	44 \| good	7.898 \| good	22.411 \| good	36.594 \| good	0.59 \| good	4.581 \| good	0.193 \| good
2025-07-30T02:00:00.000Z	44 \| good	8.11 \| good	24.87 \| good	31.072 \| good	0.374 \| good	6.015 \| good	0.193 \| good
2025-07-30T03:00:00.000Z	79 \| moderate	24.168 \| fine	105.272 \| fine	23.653 \| good	0.398 \| good	7.441 \| good	0.244 \| good
2025-07-30T04:00:00.000Z	49 \| good	8.618 \| good	24.712 \| good	23.72 \| good	0.391 \| good	12.848 \| good	0.285 \| good
2025-07-30T05:00:00.000Z	44 \| good	8.441 \| good	24.319 \| good	24.054 \| good	0.461 \| good	14.982 \| good	0.307 \| good
2025-07-30T06:00:00.000Z	44 \| good	8.394 \| good	27.292 \| good	20.759 \| good	0.368 \| good	17.076 \| good	0.291 \| good
2025-07-30T07:00:00.000Z	44 \| good	8.438 \| good	29.118 \| good	17.192 \| good	0.452 \| good	11.792 \| good	0.358 \| good
2025-07-30T08:00:00.000Z	49 \| good	8.994 \| good	28.331 \| good	16.077 \| good	0.438 \| good	12.732 \| good	0.298 \| good
2025-07-30T09:00:00.000Z	49 \| good	8.952 \| good	32.27 \| good	11.631 \| good	0.828 \| good	10.929 \| good	0.333 \| good
2025-07-30T10:00:00.000Z	49 \| good	8.841 \| good	23.833 \| good	13.452 \| good	0.566 \| good	11.596 \| good	0.333 \| good
2025-07-30T11:00:00.000Z	49 \| good	8.862 \| good	27.523 \| good	14.195 \| good	0.68 \| good	8.058 \| good	0.34 \| good
2025-07-30T12:00:00.000Z	49 \| good	8.913 \| good	28.966 \| good	15.894 \| good	0.936 \| good	8.233 \| good	0.363 \| good
2025-07-30T13:00:00.000Z	49 \| good	9.137 \| good	26.95 \| good	22.637 \| good	0.59 \| good	7.672 \| good	0.366 \| good
2025-07-30T14:00:00.000Z	49 \| good	9.422 \| good	24.584 \| good	29.342 \| good	0.683 \| good	6.584 \| good	0.35 \| good
2025-07-30T15:00:00.000Z	52 \| moderate	9.636 \| good	27.798 \| good	31.602 \| good	1.058 \| good	8.232 \| good	0.344 \| good
2025-07-30T16:00:00.000Z	52 \| moderate	10.262 \| good	28.549 \| good	36.758 \| good	0.931 \| good	6.321 \| good	0.34 \| good
2025-07-30T17:00:00.000Z	52 \| moderate	10.064 \| good	29.758 \| good	40.629 \| good	1.68 \| good	5.092 \| good	0.343 \| good
2025-07-30T18:00:00.000Z	52 \| moderate	9.877 \| good	29.062 \| good	39.211 \| good	0.614 \| good	4.86 \| good	0.336 \| good
2025-07-30T19:00:00.000Z	52 \| moderate	9.648 \| good	27.604 \| good	41.492 \| good	0.502 \| good	4.776 \| good	0.336 \| good
2025-07-30T20:00:00.000Z	49 \| good	9.159 \| good	24.701 \| good	42.401 \| good	0.396 \| good	7.204 \| good	0.336 \| good
2025-07-30T21:00:00.000Z	49 \| good	8.659 \| good	26.169 \| good	40.58 \| good	0.402 \| good	7.656 \| good	0.279 \| good
2025-07-30T22:00:00.000Z	44 \| good	8.154 \| good	23.689 \| good	38.924 \| good	0.387 \| good	5.789 \| good	0.296 \| good
2025-07-30T23:00:00.000Z	44 \| good	7.625 \| good	23.06 \| good	37.673 \| good	0.498 \| good	7.015 \| good	0.269 \| good
2025-07-31T00:00:00.000Z	44 \| good	7.557 \| good	24.137 \| good	37.751 \| good	0.259 \| good	6.656 \| good	0.269 \| good
2025-07-31T01:00:00.000Z	38 \| good	7.401 \| good	23.042 \| good	32.91 \| good	0.255 \| good	8.469 \| good	0.289 \| good
2025-07-31T02:00:00.000Z	38 \| good	7.464 \| good	23.286 \| good	28.515 \| good	0.194 \| good	7.057 \| good	0.279 \| good
2025-07-31T03:00:00.000Z	44 \| good	7.596 \| good	22.035 \| good	26.452 \| good	0.44 \| good	6.649 \| good	0.269 \| good
2025-07-31T04:00:00.000Z	44 \| good	7.862 \| good	24.422 \| good	25.929 \| good	0.233 \| good	6.552 \| good	0.27 \| good
2025-07-31T05:00:00.000Z	44 \| good	7.873 \| good	23.848 \| good	26.85 \| good	0.502 \| good	8.637 \| good	0.291 \| good
2025-07-31T06:00:00.000Z	49 \| good	9.361 \| good	25.555 \| good	22.86 \| good	0.728 \| good	7.127 \| good	0.371 \| good
2025-07-31T07:00:00.000Z	52 \| moderate	9.612 \| good	27.873 \| good	17.986 \| good	0.473 \| good	7.791 \| good	0.267 \| good
2025-07-31T07:00:00.000Z	54 \| moderate	10.715 \| good	44.6 \| good	18.764 \| good	0.685 \| good	7.677 \| good	0.245 \| good
2025-07-31T07:00:00.000Z	71 \| moderate	19.574 \| fine	86.089 \| fine	18.997 \| good	0.32 \| good	2.672 \| good	0.237 \| good
2025-07-31T08:00:00.000Z	69 \| moderate	18.869 \| fine	83.022 \| fine	17.667 \| good	0.331 \| good	2.298 \| good	0.238 \| good
2025-07-31T09:00:00.000Z	75 \| moderate	21.822 \| fine	95.917 \| fine	15.214 \| good	0.341 \| good	1.924 \| good	0.239 \| good
2025-07-31T10:00:00.000Z	77 \| moderate	22.684 \| fine	99.645 \| fine	14.173 \| good	0.403 \| good	2.082 \| good	0.251 \| good
2025-07-31T11:00:00.000Z	79 \| moderate	23.536 \| fine	103.144 \| fine	19.684 \| good	0.465 \| good	2.239 \| good	0.262 \| good
2025-07-31T12:00:00.000Z	79 \| moderate	23.779 \| fine	103.999 \| fine	27.305 \| good	0.527 \| good	2.397 \| good	0.274 \| good
2025-07-31T13:00:00.000Z	79 \| moderate	23.787 \| fine	104.19 \| fine	31.859 \| good	0.563 \| good	2.034 \| good	0.271 \| good
2025-07-31T14:00:00.000Z	75 \| moderate	21.846 \| fine	95.606 \| fine	34.994 \| good	0.598 \| good	1.672 \| good	0.268 \| good
2025-07-31T15:00:00.000Z	69 \| moderate	19.347 \| fine	84.955 \| fine	37.011 \| good	0.634 \| good	1.31 \| good	0.265 \| good
2025-07-31T16:00:00.000Z	67 \| moderate	18.415 \| fine	81.565 \| fine	37.431 \| good	0.647 \| good	1.326 \| good	0.266 \| good
2025-07-31T17:00:00.000Z	64 \| moderate	16.394 \| fine	73.033 \| fine	34.662 \| good	0.661 \| good	1.342 \| good	0.267 \| good
2025-07-31T18:00:00.000Z	62 \| moderate	14.571 \| fine	65.096 \| fine	30.535 \| good	0.674 \| good	1.359 \| good	0.268 \| good
2025-07-31T19:00:00.000Z	62 \| moderate	14.609 \| fine	64.806 \| fine	26.393 \| good	0.644 \| good	1.733 \| good	0.271 \| good
2025-07-31T20:00:00.000Z	60 \| moderate	14.395 \| fine	64.478 \| fine	24.039 \| good	0.614 \| good	2.108 \| good	0.274 \| good
2025-07-31T21:00:00.000Z	58 \| moderate	13.314 \| fine	59.857 \| fine	21.58 \| good	0.584 \| good	2.483 \| good	0.276 \| good
2025-07-31T22:00:00.000Z	56 \| moderate	12.048 \| good	53.901 \| good	19.669 \| good	0.549 \| good	3.214 \| good	0.282 \| good
2025-07-31T23:00:00.000Z	54 \| moderate	10.935 \| good	48.489 \| good	19.449 \| good	0.515 \| good	3.945 \| good	0.287 \| good
2025-08-01T00:00:00.000Z	54 \| moderate	11.127 \| good	49.281 \| good	20.526 \| good	0.48 \| good	4.676 \| good	0.293 \| good
2025-08-01T01:00:00.000Z	54 \| moderate	11.224 \| good	49.317 \| good	21.16 \| good	0.446 \| good	4.089 \| good	0.279 \| good
2025-08-01T02:00:00.000Z	56 \| moderate	11.835 \| good	52.987 \| good	21.238 \| good	0.412 \| good	3.502 \| good	0.266 \| good
2025-08-01T03:00:00.000Z	56 \| moderate	11.805 \| good	52.874 \| good	21.24 \| good	0.378 \| good	2.915 \| good	0.253 \| good
2025-08-01T04:00:00.000Z	54 \| moderate	11.481 \| good	50.743 \| good	21.972 \| good	0.358 \| good	2.558 \| good	0.249 \| good
2025-08-01T05:00:00.000Z	54 \| moderate	10.554 \| good	46.84 \| good	22.381 \| good	0.339 \| good	2.201 \| good	0.245 \| good
2025-08-01T06:00:00.000Z	49 \| good	9.289 \| good	41.408 \| good	22.293 \| good	0.32 \| good	1.844 \| good	0.241 \| good
2025-08-01T07:00:00.000Z	49 \| good	8.52 \| good	37.266 \| good	21.999 \| good	0.352 \| good	1.759 \| good	0.238 \| good
2025-08-01T08:00:00.000Z	49 \| good	9.233 \| good	41.078 \| good	21.037 \| good	0.384 \| good	1.675 \| good	0.235 \| good
2025-08-01T09:00:00.000Z	52 \| moderate	10.013 \| good	44.316 \| good	17.652 \| good	0.415 \| good	1.591 \| good	0.233 \| good
2025-08-01T10:00:00.000Z	44 \| good	8.288 \| good	36.58 \| good	15.246 \| good	0.44 \| good	2.094 \| good	0.227 \| good
2025-08-01T11:00:00.000Z	33 \| good	6.159 \| good	26.939 \| good	16.789 \| good	0.465 \| good	2.596 \| good	0.221 \| good
2025-08-01T12:00:00.000Z	27 \| good	4.847 \| good	20.775 \| good	19.446 \| good	0.49 \| good	3.099 \| good	0.215 \| good
2025-08-01T13:00:00.000Z	27 \| good	4.696 \| good	20.214 \| good	23.087 \| good	0.465 \| good	2.608 \| good	0.217 \| good
2025-08-01T14:00:00.000Z	24 \| good	4.083 \| good	17.851 \| good	26.104 \| good	0.439 \| good	2.116 \| good	0.22 \| good
2025-08-01T15:00:00.000Z	26 \| good	3.854 \| good	17.032 \| good	28.256 \| good	0.414 \| good	1.625 \| good	0.223 \| good
2025-08-01T16:00:00.000Z	27 \| good	3.874 \| good	16.999 \| good	28.854 \| good	0.383 \| good	1.322 \| good	0.216 \| good
2025-08-01T17:00:00.000Z	27 \| good	4.013 \| good	17.537 \| good	29.441 \| good	0.353 \| good	1.02 \| good	0.21 \| good
2025-08-01T18:00:00.000Z	27 \| good	3.901 \| good	17.068 \| good	28.667 \| good	0.323 \| good	0.717 \| good	0.204 \| good
2025-08-01T19:00:00.000Z	26 \| good	3.903 \| good	16.794 \| good	28.33 \| good	0.325 \| good	0.858 \| good	0.199 \| good
2025-08-01T20:00:00.000Z	26 \| good	3.961 \| good	17.275 \| good	27.641 \| good	0.328 \| good	0.999 \| good	0.194 \| good
2025-08-01T21:00:00.000Z	25 \| good	3.894 \| good	16.977 \| good	26.967 \| good	0.331 \| good	1.14 \| good	0.19 \| good
2025-08-01T22:00:00.000Z	22 \| good	3.674 \| good	15.913 \| good	24.415 \| good	0.354 \| good	2.225 \| good	0.195 \| good
2025-08-01T23:00:00.000Z	22 \| good	4.202 \| good	18.136 \| good	20.178 \| good	0.378 \| good	3.31 \| good	0.201 \| good
2025-08-02T00:00:00.000Z	33 \| good	6.428 \| good	28.504 \| good	18.536 \| good	0.401 \| good	4.394 \| good	0.206 \| good
2025-08-02T01:00:00.000Z	38 \| good	7.224 \| good	31.806 \| good	17.305 \| good	0.447 \| good	5.61 \| good	0.217 \| good
2025-08-02T02:00:00.000Z	38 \| good	7.259 \| good	31.708 \| good	16.741 \| good	0.492 \| good	6.825 \| good	0.227 \| good
2025-08-02T03:00:00.000Z	44 \| good	7.605 \| good	33.468 \| good	16.297 \| good	0.538 \| good	8.041 \| good	0.237 \| good
2025-08-02T04:00:00.000Z	44 \| good	7.944 \| good	35.082 \| good	15.085 \| good	0.526 \| good	7.362 \| good	0.236 \| good
2025-08-02T05:00:00.000Z	44 \| good	8.023 \| good	35.531 \| good	14.705 \| good	0.514 \| good	6.683 \| good	0.234 \| good
2025-08-02T06:00:00.000Z	58 \| moderate	13.178 \| fine	13.982 \| good	27.486 \| good	0.5 \| good	6.01 \| good	0.233 \| good

Salem

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

0.28ppm

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 07:00:00 on 2025-07-30.

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 06:00:00 on 2025-07-30.

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

The current air quality in Salem, New Hampshire is 49, 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 PM2.5.

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 8.75 μg/m³.

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

The current PM₁₀ concentration at Salem, New Hampshire is 35.628 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 0.286 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 0.523 ppb.

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

The current ozone (O₃) concentration at Salem, New Hampshire is 30.029 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 8.9 ppb.

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