What is the current concentration of PM10 in Fremont, California?

The current PM10 concentration at Fremont, California is 39.643 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Fremont, California?

The current sulfur dioxide (SO2) concentration at Fremont, California is 0.671 ppb.

What is the current concentration of ozone (O3) in Fremont, California?

The current ozone (O3) concentration at Fremont, California is 32.996 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Fremont, California?

The current nitrogen dioxide (NO2) concentration at Fremont, California is 4.977 ppb.

Fremont, California live air quality index now

Q: What is the current concentration of PM2.5 in Fremont, California?

The current PM2.5 concentration at Fremont, California is 9.104 μg/m3.

Stay updated with real-time air quality in Fremont, California 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

Fremont, California

Last updated: ... (Local time)

Major air pollutants in Fremont, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.10 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.64 μg/m³

155

255

425

605+

Ozone (O₃)

33.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.67 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.98 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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Fremont, California

Scroll To Air Quality Map

Track live Fremont, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T03:00:00.000Z	54 \| moderate	11.173 \| good	49.628 \| good	31.709 \| good	1.526 \| good	34.141 \| good	0.339 \| good
2026-03-08T04:00:00.000Z	30 \| good	5.348 \| good	24.818 \| good	31.54 \| good	0.386 \| good	12.493 \| good	0.431 \| good
2026-03-08T05:00:00.000Z	28 \| good	4.416 \| good	20.142 \| good	29.85 \| good	0.49 \| good	11.34 \| good	0.505 \| good
2026-03-08T06:00:00.000Z	33 \| good	6.326 \| good	28.866 \| good	27.481 \| good	0.503 \| good	9.385 \| good	0.374 \| good
2026-03-08T07:00:00.000Z	49 \| good	8.615 \| good	31.95 \| good	27.405 \| good	0.46 \| good	12.625 \| good	0.453 \| good
2026-03-08T08:00:00.000Z	49 \| good	9.3 \| good	27.905 \| good	25.557 \| good	0.456 \| good	13.193 \| good	0.469 \| good
2026-03-08T09:00:00.000Z	44 \| good	8.019 \| good	25.856 \| good	25.496 \| good	0.498 \| good	13.711 \| good	0.469 \| good
2026-03-08T10:00:00.000Z	44 \| good	7.78 \| good	30.328 \| good	25.284 \| good	0.346 \| good	7.584 \| good	0.227 \| good
2026-03-08T11:00:00.000Z	52 \| moderate	10.082 \| good	36.127 \| good	25.744 \| good	0.377 \| good	8.791 \| good	0.2 \| good
2026-03-08T12:00:00.000Z	49 \| good	9.231 \| good	35.082 \| good	23.889 \| good	0.16 \| good	14.502 \| good	0.554 \| good
2026-03-08T13:00:00.000Z	22 \| good	3.799 \| good	16.021 \| good	23.127 \| good	0.439 \| good	10.269 \| good	0.397 \| good
2026-03-08T14:00:00.000Z	22 \| good	3.636 \| good	15.557 \| good	23.964 \| good	0.414 \| good	10.209 \| good	0.368 \| good
2026-03-08T15:00:00.000Z	27 \| good	5.006 \| good	18.023 \| good	23.509 \| good	0.487 \| good	10.752 \| good	0.353 \| good
2026-03-08T16:00:00.000Z	27 \| good	4.664 \| good	18.935 \| good	23.062 \| good	0.501 \| good	10.728 \| good	0.38 \| good
2026-03-08T17:00:00.000Z	22 \| good	4.483 \| good	16.21 \| good	23.774 \| good	0.767 \| good	9.732 \| good	0.446 \| good
2026-03-08T18:00:00.000Z	27 \| good	4.681 \| good	16.859 \| good	24.894 \| good	1.03 \| good	9.369 \| good	0.387 \| good
2026-03-08T19:00:00.000Z	24 \| good	4.474 \| good	18.6 \| good	25.964 \| good	1.015 \| good	8.398 \| good	0.36 \| good
2026-03-08T20:00:00.000Z	33 \| good	6.25 \| good	22.095 \| good	28.82 \| good	1.052 \| good	5.924 \| good	0.341 \| good
2026-03-08T21:00:00.000Z	33 \| good	5.942 \| good	23.139 \| good	29.596 \| good	0.876 \| good	5.989 \| good	0.341 \| good
2026-03-08T22:00:00.000Z	30 \| good	4.615 \| good	20.462 \| good	32.439 \| good	0.702 \| good	5.307 \| good	0.306 \| good
2026-03-08T23:00:00.000Z	34 \| good	4.552 \| good	19.826 \| good	36.624 \| good	0.66 \| good	5.246 \| good	0.277 \| good
2026-03-09T00:00:00.000Z	36 \| good	5.528 \| good	27.332 \| good	38.551 \| good	0.469 \| good	5.131 \| good	0.277 \| good
2026-03-09T01:00:00.000Z	36 \| good	6.035 \| good	27.346 \| good	39.496 \| good	0.456 \| good	5.724 \| good	0.313 \| good
2026-03-09T02:00:00.000Z	44 \| good	7.961 \| good	35.391 \| good	40.318 \| good	0.528 \| good	6.08 \| good	0.306 \| good
2026-03-09T03:00:00.000Z	71 \| moderate	20.064 \| fine	88.106 \| fine	27.678 \| good	3.168 \| good	33.098 \| good	0.351 \| good
2026-03-09T04:00:00.000Z	44 \| good	8.403 \| good	34.385 \| good	39.882 \| good	0.484 \| good	14.165 \| good	0.363 \| good
2026-03-09T05:00:00.000Z	44 \| good	8.479 \| good	38.333 \| good	35.706 \| good	0.443 \| good	13.597 \| good	0.374 \| good
2026-03-09T06:00:00.000Z	52 \| moderate	9.563 \| good	41.827 \| good	36.224 \| good	0.52 \| good	11.189 \| good	0.337 \| good
2026-03-09T07:00:00.000Z	49 \| good	8.652 \| good	40.166 \| good	31.299 \| good	0.536 \| good	9.952 \| good	0.335 \| good
2026-03-09T08:00:00.000Z	47 \| good	7.841 \| good	51.272 \| good	30.764 \| good	0.567 \| good	8.738 \| good	0.328 \| good
2026-03-09T09:00:00.000Z	49 \| good	8.865 \| good	48.784 \| good	29.506 \| good	0.531 \| good	7.55 \| good	0.291 \| good
2026-03-09T10:00:00.000Z	44 \| good	8.249 \| good	43.034 \| good	27.051 \| good	0.486 \| good	8.343 \| good	0.349 \| good
2026-03-09T11:00:00.000Z	44 \| good	7.685 \| good	33.819 \| good	22.696 \| good	0.59 \| good	7.789 \| good	0.304 \| good
2026-03-09T12:00:00.000Z	49 \| good	8.537 \| good	40.444 \| good	22.278 \| good	0.564 \| good	7.915 \| good	0.305 \| good
2026-03-09T13:00:00.000Z	38 \| good	6.75 \| good	34.53 \| good	21.161 \| good	0.559 \| good	9.048 \| good	0.412 \| good
2026-03-09T14:00:00.000Z	44 \| good	7.534 \| good	40.425 \| good	20.156 \| good	0.615 \| good	11.674 \| good	0.46 \| good
2026-03-09T15:00:00.000Z	38 \| good	7.372 \| good	26.906 \| good	20.257 \| good	0.549 \| good	13.653 \| good	0.482 \| good
2026-03-09T16:00:00.000Z	33 \| good	6.184 \| good	26.317 \| good	16.612 \| good	0.621 \| good	15.208 \| good	0.592 \| good
2026-03-09T17:00:00.000Z	38 \| good	7.357 \| good	32.397 \| good	18.261 \| good	0.598 \| good	12.942 \| good	0.504 \| good
2026-03-09T18:00:00.000Z	52 \| moderate	9.691 \| good	42.899 \| good	19.62 \| good	0.416 \| good	9.951 \| good	0.389 \| good
2026-03-09T19:00:00.000Z	54 \| moderate	11.435 \| good	49.626 \| good	20.897 \| good	0.599 \| good	9.724 \| good	0.402 \| good
2026-03-09T20:00:00.000Z	54 \| moderate	11.112 \| good	45.106 \| good	23.132 \| good	0.839 \| good	9.217 \| good	0.325 \| good
2026-03-09T21:00:00.000Z	56 \| moderate	11.624 \| good	53.267 \| good	25.721 \| good	0.721 \| good	7.213 \| good	0.335 \| good
2026-03-09T22:00:00.000Z	54 \| moderate	10.556 \| good	44.313 \| good	28.032 \| good	0.653 \| good	6.927 \| good	0.342 \| good
2026-03-09T23:00:00.000Z	52 \| moderate	9.849 \| good	38.978 \| good	29.763 \| good	0.889 \| good	7.857 \| good	0.306 \| good
2026-03-10T00:00:00.000Z	49 \| good	8.656 \| good	37.033 \| good	32.787 \| good	0.668 \| good	6.429 \| good	0.27 \| good
2026-03-10T01:00:00.000Z	49 \| good	9.104 \| good	39.643 \| good	32.996 \| good	0.671 \| good	4.977 \| good	0.279 \| good
2026-03-10T02:00:00.000Z	49 \| good	9.104 \| good	39.643 \| good	32.996 \| good	0.671 \| good	4.977 \| good	0.279 \| good
2026-03-10T03:00:00.000Z	52 \| moderate	10.07 \| good	44.65 \| good	30.667 \| good	1.769 \| good	21.228 \| good	0.22 \| good
2026-03-10T04:00:00.000Z	49 \| good	9.479 \| good	42.263 \| good	31.336 \| good	1.705 \| good	24.005 \| good	0.231 \| good
2026-03-10T05:00:00.000Z	44 \| good	8.303 \| good	36.512 \| good	30.583 \| good	1.641 \| good	26.782 \| good	0.241 \| good
2026-03-10T06:00:00.000Z	49 \| good	9.482 \| good	42.374 \| good	30.523 \| good	1.578 \| good	29.559 \| good	0.252 \| good
2026-03-10T07:00:00.000Z	49 \| good	9.384 \| good	41.682 \| good	31.089 \| good	1.454 \| good	27.1 \| good	0.243 \| good
2026-03-10T08:00:00.000Z	44 \| good	8.118 \| good	35.396 \| good	31.917 \| good	1.33 \| good	24.641 \| good	0.233 \| good
2026-03-10T09:00:00.000Z	44 \| good	8.054 \| good	35.526 \| good	30.894 \| good	1.206 \| good	22.182 \| good	0.224 \| good
2026-03-10T10:00:00.000Z	56 \| moderate	11.724 \| good	52.668 \| good	27.98 \| good	1.149 \| good	19.59 \| good	0.212 \| good
2026-03-10T11:00:00.000Z	49 \| good	9.013 \| good	40.329 \| good	32.712 \| good	1.092 \| good	16.999 \| good	0.201 \| good
2026-03-10T12:00:00.000Z	38 \| good	6.647 \| good	29.177 \| good	33.11 \| good	1.035 \| good	14.407 \| good	0.19 \| good
2026-03-10T13:00:00.000Z	33 \| good	6.442 \| good	28.374 \| good	33.746 \| good	1.067 \| good	15.313 \| good	0.198 \| good
2026-03-10T14:00:00.000Z	38 \| good	7.413 \| good	32.36 \| good	30.868 \| good	1.1 \| good	16.218 \| good	0.207 \| good
2026-03-10T15:00:00.000Z	33 \| good	6.35 \| good	27.923 \| good	30.269 \| good	1.133 \| good	17.124 \| good	0.215 \| good
2026-03-10T16:00:00.000Z	33 \| good	5.859 \| good	26.02 \| good	32.855 \| good	1.243 \| good	13.53 \| good	0.198 \| good
2026-03-10T17:00:00.000Z	34 \| good	5.375 \| good	23.26 \| good	36.609 \| good	1.353 \| good	9.937 \| good	0.181 \| good
2026-03-10T18:00:00.000Z	49 \| good	9.021 \| good	39.959 \| good	35.425 \| good	1.463 \| good	6.343 \| good	0.164 \| good
2026-03-10T19:00:00.000Z	49 \| good	9.262 \| good	41.496 \| good	37.848 \| good	1.467 \| good	5.82 \| good	0.161 \| good
2026-03-10T20:00:00.000Z	44 \| good	8.427 \| good	36.753 \| good	40.069 \| good	1.471 \| good	5.297 \| good	0.159 \| good
2026-03-10T21:00:00.000Z	49 \| good	8.542 \| good	37.524 \| good	42.003 \| good	1.476 \| good	4.774 \| good	0.157 \| good
2026-03-10T22:00:00.000Z	44 \| good	7.95 \| good	35.035 \| good	42.003 \| good	1.421 \| good	4.745 \| good	0.155 \| good
2026-03-10T23:00:00.000Z	44 \| good	8.044 \| good	35.211 \| good	39.34 \| good	1.367 \| good	4.717 \| good	0.154 \| good
2026-03-11T00:00:00.000Z	36 \| good	6.089 \| good	26.604 \| good	39.173 \| good	1.312 \| good	4.688 \| good	0.152 \| good
2026-03-11T01:00:00.000Z	33 \| good	6.116 \| good	27.099 \| good	35.667 \| good	1.329 \| good	10.5 \| good	0.179 \| good
2026-03-11T02:00:00.000Z	49 \| good	9.159 \| good	40.856 \| good	33.016 \| good	1.345 \| good	16.311 \| good	0.206 \| good
2026-03-11T03:00:00.000Z	52 \| moderate	9.931 \| good	44.219 \| good	30.28 \| good	1.362 \| good	22.123 \| good	0.233 \| good
2026-03-11T04:00:00.000Z	54 \| moderate	11.299 \| good	50.198 \| good	29.104 \| good	1.448 \| good	24.38 \| good	0.264 \| good
2026-03-11T05:00:00.000Z	56 \| moderate	11.976 \| good	53.787 \| good	28.319 \| good	1.534 \| good	26.638 \| good	0.295 \| good
2026-03-11T06:00:00.000Z	66 \| moderate	16.505 \| fine	18.067 \| good	6.034 \| good	1.643 \| good	29.436 \| good	0.33 \| good
2026-03-11T07:00:00.000Z	56 \| moderate	12.429 \| fine	55.729 \| fine	26.893 \| good	1.617 \| good	28.61 \| good	0.329 \| good
2026-03-11T08:00:00.000Z	49 \| good	9.217 \| good	41.303 \| good	27.424 \| good	1.613 \| good	28.324 \| good	0.332 \| good
2026-03-11T09:00:00.000Z	49 \| good	9.179 \| good	41.124 \| good	26.422 \| good	1.61 \| good	28.038 \| good	0.336 \| good
2026-03-11T10:00:00.000Z	56 \| moderate	12.363 \| fine	55.113 \| fine	25.768 \| good	1.594 \| good	26.98 \| good	0.322 \| good
2026-03-11T11:00:00.000Z	58 \| moderate	12.983 \| fine	58.793 \| fine	23.899 \| good	1.579 \| good	25.921 \| good	0.309 \| good
2026-03-11T12:00:00.000Z	67 \| moderate	18.324 \| fine	20.299 \| good	6.946 \| good	1.584 \| good	25.257 \| good	0.298 \| good
2026-03-11T13:00:00.000Z	66 \| moderate	17.405 \| fine	19.347 \| good	7.368 \| good	1.706 \| good	24.33 \| good	0.314 \| good
2026-03-11T14:00:00.000Z	66 \| moderate	17.474 \| fine	19.406 \| good	7.79 \| good	1.827 \| good	23.403 \| good	0.329 \| good
2026-03-11T15:00:00.000Z	71 \| moderate	19.884 \| fine	21.633 \| good	8.212 \| good	1.948 \| good	22.477 \| good	0.344 \| good
2026-03-11T16:00:00.000Z	69 \| moderate	19.395 \| fine	20.793 \| good	14.909 \| good	2.265 \| good	19.335 \| good	0.305 \| good
2026-03-11T17:00:00.000Z	56 \| moderate	12.37 \| fine	56.258 \| fine	27.349 \| good	2.539 \| good	15.924 \| good	0.263 \| good
2026-03-11T18:00:00.000Z	56 \| moderate	11.593 \| good	13.674 \| good	28.303 \| good	2.899 \| good	13.05 \| good	0.227 \| good
2026-03-11T19:00:00.000Z	49 \| good	9.057 \| good	11.079 \| good	34.165 \| good	2.469 \| good	10.599 \| good	0.207 \| good
2026-03-11T20:00:00.000Z	44 \| good	7.517 \| good	9.366 \| good	40.027 \| good	2.04 \| good	8.147 \| good	0.188 \| good
2026-03-11T21:00:00.000Z	43 \| good	6.797 \| good	8.56 \| good	45.889 \| good	1.61 \| good	5.695 \| good	0.168 \| good
2026-03-11T22:00:00.000Z	44 \| good	6.749 \| good	8.489 \| good	46.751 \| good	1.604 \| good	5.623 \| good	0.169 \| good
2026-03-11T23:00:00.000Z	44 \| good	6.938 \| good	8.68 \| good	47.613 \| good	1.597 \| good	5.551 \| good	0.169 \| good
2026-03-12T00:00:00.000Z	44 \| good	7.522 \| good	9.364 \| good	48.475 \| good	1.591 \| good	5.48 \| good	0.169 \| good
2026-03-12T01:00:00.000Z	49 \| good	8.887 \| good	10.887 \| good	36.26 \| good	1.767 \| good	13.813 \| good	0.216 \| good
2026-03-12T02:00:00.000Z	56 \| moderate	12.206 \| fine	14.163 \| good	24.045 \| good	1.943 \| good	22.147 \| good	0.262 \| good

Fremont

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Fremont, California air quality map: Track AQI near you

0.30ppm

How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, 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 Fremont, California updated?

The air quality for Fremont, California is updated every hour.

When was the worst air quality at Fremont, California in the last 24 hrs?

The worst air quality in Fremont, California in the last 24 hours was observed at 03:00:00 on 2026-03-09.

When was the best air quality at Fremont, California in the last 24 hrs?

In the last 24 hrs, the best air quality in Fremont, California was observed at 04:00:00 on 2026-03-09.

What is the current air quality in Fremont, California?

The current air quality in Fremont, California is 49, categorized as Good based on real-time data.

What pollutant is the most common in Fremont, California?

The most common pollutant in Fremont, California is PM2.5.

What should I do if the air quality in Fremont, California is poor?

If the air quality in Fremont, California is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Fremont, California?

The current PM_2.5 concentration at Fremont, California is 9.104 μg/m³.

What is the current concentration of PM₁₀ in Fremont, California?

The current PM₁₀ concentration at Fremont, California is 39.643 μg/m³.

What is the current concentration of carbon monoxide (CO) in Fremont, California?

The current carbon monoxide (CO) concentration at Fremont, California is 0.279 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Fremont, California?

The current sulfur dioxide (SO₂) concentration at Fremont, California is 0.671 ppb.

What is the current concentration of ozone (O₃) in Fremont, California?

The current ozone (O₃) concentration at Fremont, California is 32.996 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Fremont, California?

The current nitrogen dioxide (NO₂) concentration at Fremont, California is 4.977 ppb.

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