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

The current PM10 concentration at Fremont, California is 28.585 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Fremont, California is 0.698 ppb.

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

The current ozone (O3) concentration at Fremont, California is 17.52 ppm.

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

The current nitrogen dioxide (NO2) concentration at Fremont, California is 11.495 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 7.878 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)

7.88 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.59 μg/m³

155

255

425

605+

Ozone (O₃)

17.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.70 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.49 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.40 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
2026-02-11T18:00:00.000Z	35 \| good	1.721 \| good	6.08 \| good	38.037 \| good	0.571 \| good	5.253 \| good	0.203 \| good
2026-02-11T19:00:00.000Z	33 \| good	1.248 \| good	6.007 \| good	36.181 \| good	0.518 \| good	4.181 \| good	0.203 \| good
2026-02-11T20:00:00.000Z	33 \| good	2.57 \| good	9.525 \| good	36.448 \| good	0.51 \| good	3.401 \| good	0.184 \| good
2026-02-11T21:00:00.000Z	33 \| good	2.236 \| good	9.752 \| good	35.653 \| good	0.488 \| good	2.835 \| good	0.174 \| good
2026-02-11T22:00:00.000Z	32 \| good	3.002 \| good	13.517 \| good	34.911 \| good	0.501 \| good	3.106 \| good	0.211 \| good
2026-02-11T23:00:00.000Z	31 \| good	4.305 \| good	16.551 \| good	33.753 \| good	0.529 \| good	3.086 \| good	0.211 \| good
2026-02-12T00:00:00.000Z	31 \| good	2.162 \| good	10.56 \| good	32.954 \| good	0.551 \| good	3.135 \| good	0.218 \| good
2026-02-12T01:00:00.000Z	30 \| good	2.398 \| good	14.083 \| good	32.254 \| good	0.532 \| good	3.199 \| good	0.218 \| good
2026-02-12T02:00:00.000Z	28 \| good	2.796 \| good	10.736 \| good	30.118 \| good	0.474 \| good	3.479 \| good	0.218 \| good
2026-02-12T03:00:00.000Z	28 \| good	3.141 \| good	16.146 \| good	30.196 \| good	0.491 \| good	4.105 \| good	0.213 \| good
2026-02-12T04:00:00.000Z	29 \| good	3.229 \| good	14.462 \| good	31.422 \| good	0.488 \| good	5.317 \| good	0.247 \| good
2026-02-12T05:00:00.000Z	29 \| good	3.601 \| good	14.973 \| good	31.037 \| good	0.506 \| good	5.227 \| good	0.26 \| good
2026-02-12T06:00:00.000Z	31 \| good	4.081 \| good	18.881 \| good	32.993 \| good	0.506 \| good	4.61 \| good	0.211 \| good
2026-02-12T07:00:00.000Z	31 \| good	5.128 \| good	18.991 \| good	32.598 \| good	0.518 \| good	4.607 \| good	0.211 \| good
2026-02-12T08:00:00.000Z	31 \| good	5.162 \| good	21.941 \| good	33.987 \| good	0.557 \| good	6.684 \| good	0.227 \| good
2026-02-12T09:00:00.000Z	31 \| good	4.848 \| good	21.222 \| good	33.825 \| good	0.549 \| good	7.477 \| good	0.271 \| good
2026-02-12T10:00:00.000Z	31 \| good	4.003 \| good	17.24 \| good	33.457 \| good	0.492 \| good	7.611 \| good	0.243 \| good
2026-02-12T11:00:00.000Z	31 \| good	3.801 \| good	15.495 \| good	32.797 \| good	0.493 \| good	9.125 \| good	0.236 \| good
2026-02-12T12:00:00.000Z	31 \| good	4.851 \| good	21.746 \| good	32.95 \| good	0.543 \| good	8.964 \| good	0.236 \| good
2026-02-12T13:00:00.000Z	31 \| good	3.951 \| good	17.196 \| good	32.537 \| good	0.65 \| good	8.18 \| good	0.23 \| good
2026-02-12T14:00:00.000Z	28 \| good	3.802 \| good	18.331 \| good	30.37 \| good	0.699 \| good	10.703 \| good	0.287 \| good
2026-02-12T15:00:00.000Z	26 \| good	4.1 \| good	19.83 \| good	27.813 \| good	0.601 \| good	11.778 \| good	0.382 \| good
2026-02-12T16:00:00.000Z	25 \| good	4.459 \| good	21.078 \| good	27.033 \| good	0.619 \| good	13.6 \| good	0.466 \| good
2026-02-12T17:00:00.000Z	24 \| good	3.761 \| good	15.023 \| good	26.165 \| good	0.716 \| good	14.977 \| good	0.48 \| good
2026-02-12T18:00:00.000Z	27 \| good	4.97 \| good	21.8 \| good	25.345 \| good	0.747 \| good	9.728 \| good	0.402 \| good
2026-02-12T19:00:00.000Z	33 \| good	6.462 \| good	16.772 \| good	25.705 \| good	0.773 \| good	6.513 \| good	0.312 \| good
2026-02-12T20:00:00.000Z	27 \| good	5.46 \| good	26.008 \| good	26.301 \| good	0.654 \| good	5.814 \| good	0.266 \| good
2026-02-12T21:00:00.000Z	27 \| good	4.987 \| good	20.815 \| good	27.743 \| good	0.613 \| good	5.728 \| good	0.247 \| good
2026-02-12T22:00:00.000Z	27 \| good	3.831 \| good	15.248 \| good	28.702 \| good	0.468 \| good	6.373 \| good	0.284 \| good
2026-02-12T23:00:00.000Z	28 \| good	3.583 \| good	14.713 \| good	30.169 \| good	0.447 \| good	7.651 \| good	0.291 \| good
2026-02-13T00:00:00.000Z	31 \| good	3.262 \| good	11.815 \| good	33.144 \| good	0.432 \| good	6.208 \| good	0.255 \| good
2026-02-13T01:00:00.000Z	31 \| good	5.429 \| good	25.345 \| good	34.439 \| good	0.396 \| good	6.771 \| good	0.319 \| good
2026-02-13T02:00:00.000Z	33 \| good	2.975 \| good	12.684 \| good	35.782 \| good	0.565 \| good	7.575 \| good	0.327 \| good
2026-02-13T03:00:00.000Z	32 \| good	3.013 \| good	22.662 \| good	35.059 \| good	0.542 \| good	9.507 \| good	0.356 \| good
2026-02-13T04:00:00.000Z	31 \| good	3.376 \| good	16.077 \| good	33.805 \| good	0.501 \| good	12.25 \| good	0.376 \| good
2026-02-13T05:00:00.000Z	29 \| good	4.277 \| good	14.698 \| good	31.392 \| good	0.585 \| good	13.138 \| good	0.376 \| good
2026-02-13T06:00:00.000Z	27 \| good	5.198 \| good	21.956 \| good	28.768 \| good	0.505 \| good	12.677 \| good	0.414 \| good
2026-02-13T07:00:00.000Z	33 \| good	5.959 \| good	21.17 \| good	27.368 \| good	0.509 \| good	11.104 \| good	0.31 \| good
2026-02-13T08:00:00.000Z	31 \| good	5.34 \| good	33.745 \| good	23.987 \| good	0.562 \| good	10.903 \| good	0.335 \| good
2026-02-13T09:00:00.000Z	38 \| good	7.172 \| good	28.411 \| good	20.833 \| good	0.5 \| good	11.96 \| good	0.384 \| good
2026-02-13T10:00:00.000Z	45 \| good	6.623 \| good	49.205 \| good	19.692 \| good	0.514 \| good	9.574 \| good	0.388 \| good
2026-02-13T11:00:00.000Z	38 \| good	6.89 \| good	39.959 \| good	18.101 \| good	0.526 \| good	9.128 \| good	0.384 \| good
2026-02-13T12:00:00.000Z	33 \| good	6.323 \| good	17.719 \| good	17.279 \| good	0.556 \| good	8.666 \| good	0.384 \| good
2026-02-13T13:00:00.000Z	33 \| good	6.457 \| good	26.356 \| good	15.594 \| good	0.725 \| good	8.841 \| good	0.45 \| good
2026-02-13T14:00:00.000Z	33 \| good	5.875 \| good	24.484 \| good	15.28 \| good	0.917 \| good	9.746 \| good	0.378 \| good
2026-02-13T15:00:00.000Z	38 \| good	6.607 \| good	24.573 \| good	17.34 \| good	0.719 \| good	11.222 \| good	0.431 \| good
2026-02-13T16:00:00.000Z	44 \| good	7.878 \| good	28.585 \| good	17.52 \| good	0.698 \| good	11.495 \| good	0.397 \| good
2026-02-13T17:00:00.000Z	44 \| good	7.878 \| good	28.585 \| good	17.52 \| good	0.698 \| good	11.495 \| good	0.397 \| good
2026-02-13T18:00:00.000Z	58 \| moderate	12.735 \| fine	56.964 \| fine	25.162 \| good	2.18 \| good	10.58 \| good	0.229 \| good
2026-02-13T19:00:00.000Z	56 \| moderate	12.346 \| fine	55.841 \| fine	25.821 \| good	2.032 \| good	8.861 \| good	0.209 \| good
2026-02-13T20:00:00.000Z	52 \| moderate	9.697 \| good	43.243 \| good	29.946 \| good	1.822 \| good	6.825 \| good	0.187 \| good
2026-02-13T21:00:00.000Z	49 \| good	8.795 \| good	38.574 \| good	31.469 \| good	1.718 \| good	5.257 \| good	0.17 \| good
2026-02-13T22:00:00.000Z	44 \| good	8.37 \| good	36.629 \| good	33.964 \| good	1.6 \| good	5.16 \| good	0.165 \| good
2026-02-13T23:00:00.000Z	38 \| good	7.285 \| good	31.864 \| good	35.2 \| good	1.482 \| good	5.063 \| good	0.161 \| good
2026-02-14T00:00:00.000Z	49 \| good	8.892 \| good	39.767 \| good	31.709 \| good	1.319 \| good	4.851 \| good	0.152 \| good
2026-02-14T01:00:00.000Z	49 \| good	9.236 \| good	40.889 \| good	27.214 \| good	1.367 \| good	10.116 \| good	0.175 \| good
2026-02-14T02:00:00.000Z	49 \| good	9.129 \| good	40.334 \| good	22.504 \| good	1.415 \| good	15.381 \| good	0.197 \| good
2026-02-14T03:00:00.000Z	52 \| moderate	9.828 \| good	43.754 \| good	24.946 \| good	1.462 \| good	20.646 \| good	0.22 \| good
2026-02-14T04:00:00.000Z	52 \| moderate	9.954 \| good	44.472 \| good	18.775 \| good	1.608 \| good	25.78 \| good	0.265 \| good
2026-02-14T05:00:00.000Z	54 \| moderate	10.837 \| good	47.714 \| good	19.348 \| good	1.746 \| good	27.858 \| good	0.288 \| good
2026-02-14T06:00:00.000Z	56 \| moderate	11.862 \| good	53.316 \| good	19.496 \| good	1.883 \| good	29.935 \| good	0.312 \| good
2026-02-14T07:00:00.000Z	58 \| moderate	12.78 \| fine	57.788 \| fine	20.391 \| good	1.843 \| good	28.726 \| good	0.305 \| good
2026-02-14T08:00:00.000Z	58 \| moderate	13.153 \| fine	59.427 \| fine	22.48 \| good	1.743 \| good	28.405 \| good	0.263 \| good
2026-02-14T09:00:00.000Z	58 \| moderate	13.244 \| fine	59.601 \| fine	24.023 \| good	1.711 \| good	27.081 \| good	0.256 \| good
2026-02-14T10:00:00.000Z	60 \| moderate	14.075 \| fine	63.196 \| fine	23.525 \| good	1.624 \| good	25.453 \| good	0.249 \| good
2026-02-14T11:00:00.000Z	60 \| moderate	14.227 \| fine	63.242 \| fine	21.985 \| good	1.536 \| good	23.826 \| good	0.241 \| good
2026-02-14T12:00:00.000Z	60 \| moderate	14.433 \| fine	65.009 \| fine	18.217 \| good	1.438 \| good	22.115 \| good	0.255 \| good
2026-02-14T13:00:00.000Z	60 \| moderate	14.175 \| fine	63.017 \| fine	17.291 \| good	1.464 \| good	21.165 \| good	0.261 \| good
2026-02-14T14:00:00.000Z	60 \| moderate	14.3 \| fine	64.338 \| fine	13.857 \| good	1.49 \| good	20.214 \| good	0.267 \| good
2026-02-14T15:00:00.000Z	64 \| moderate	15.96 \| fine	70.783 \| fine	11.677 \| good	1.516 \| good	19.264 \| good	0.274 \| good
2026-02-14T16:00:00.000Z	69 \| moderate	18.731 \| fine	82.818 \| fine	18.113 \| good	1.846 \| good	17.573 \| good	0.244 \| good
2026-02-14T17:00:00.000Z	69 \| moderate	18.777 \| fine	83.265 \| fine	23.397 \| good	2.184 \| good	15.432 \| good	0.231 \| good
2026-02-14T18:00:00.000Z	69 \| moderate	18.919 \| fine	83.611 \| fine	27.977 \| good	2.522 \| good	13.291 \| good	0.217 \| good
2026-02-14T19:00:00.000Z	66 \| moderate	16.587 \| fine	73.872 \| fine	31.2 \| good	2.152 \| good	10.61 \| good	0.193 \| good
2026-02-14T20:00:00.000Z	58 \| moderate	12.976 \| fine	57.977 \| fine	31.603 \| good	1.713 \| good	7.836 \| good	0.172 \| good
2026-02-14T21:00:00.000Z	49 \| good	8.597 \| good	37.892 \| good	36.084 \| good	1.292 \| good	4.863 \| good	0.142 \| good
2026-02-14T22:00:00.000Z	33 \| good	6.415 \| good	28.33 \| good	35.712 \| good	1.087 \| good	4.46 \| good	0.138 \| good
2026-02-14T23:00:00.000Z	31 \| good	5.251 \| good	22.872 \| good	33.753 \| good	0.882 \| good	4.058 \| good	0.133 \| good
2026-02-15T00:00:00.000Z	33 \| good	4.594 \| good	20.263 \| good	35.79 \| good	0.76 \| good	3.806 \| good	0.13 \| good
2026-02-15T01:00:00.000Z	33 \| good	5.891 \| good	26.094 \| good	34.525 \| good	0.772 \| good	5.737 \| good	0.138 \| good
2026-02-15T02:00:00.000Z	44 \| good	7.752 \| good	33.822 \| good	30.236 \| good	0.783 \| good	7.667 \| good	0.147 \| good
2026-02-15T03:00:00.000Z	44 \| good	8.088 \| good	35.731 \| good	29.368 \| good	0.795 \| good	9.597 \| good	0.155 \| good
2026-02-15T04:00:00.000Z	49 \| good	8.856 \| good	38.794 \| good	26.8 \| good	0.782 \| good	10.286 \| good	0.157 \| good
2026-02-15T05:00:00.000Z	38 \| good	7.09 \| good	31.248 \| good	30.204 \| good	0.758 \| good	9.434 \| good	0.151 \| good
2026-02-15T06:00:00.000Z	33 \| good	6.038 \| good	27.022 \| good	30.91 \| good	0.734 \| good	8.583 \| good	0.145 \| good
2026-02-15T07:00:00.000Z	30 \| good	5.354 \| good	23 \| good	31.882 \| good	0.667 \| good	7.247 \| good	0.141 \| good
2026-02-15T08:00:00.000Z	28 \| good	4.784 \| good	20.792 \| good	29.955 \| good	0.61 \| good	5.694 \| good	0.134 \| good
2026-02-15T09:00:00.000Z	30 \| good	3.999 \| good	17.702 \| good	31.69 \| good	0.556 \| good	4.631 \| good	0.13 \| good
2026-02-15T10:00:00.000Z	30 \| good	3.605 \| good	15.936 \| good	32.39 \| good	0.54 \| good	4.214 \| good	0.128 \| good
2026-02-15T11:00:00.000Z	31 \| good	3.549 \| good	15.842 \| good	32.724 \| good	0.525 \| good	3.796 \| good	0.125 \| good
2026-02-15T12:00:00.000Z	31 \| good	3.308 \| good	14.237 \| good	34.243 \| good	0.498 \| good	3.565 \| good	0.125 \| good
2026-02-15T13:00:00.000Z	31 \| good	3.146 \| good	13.916 \| good	33.005 \| good	0.516 \| good	4.118 \| good	0.126 \| good
2026-02-15T14:00:00.000Z	30 \| good	0.946 \| good	3.929 \| good	31.688 \| good	0.534 \| good	4.671 \| good	0.128 \| good
2026-02-15T15:00:00.000Z	28 \| good	2.83 \| good	11.555 \| good	30.038 \| good	0.553 \| good	5.223 \| good	0.129 \| good
2026-02-15T16:00:00.000Z	29 \| good	5.332 \| good	6.603 \| good	30.941 \| good	0.567 \| good	5.282 \| good	0.132 \| good
2026-02-15T17:00:00.000Z	29 \| good	5.071 \| good	6.259 \| good	31.448 \| good	0.559 \| good	5.286 \| good	0.134 \| good

Fremont

Get reliable air quality data to drive your business

Fremont, California air quality map: Track AQI near you

0.32ppm

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 10:00:00 on 2026-02-13.

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 05:00:00 on 2026-02-12.

What is the current air quality in Fremont, California?

The current air quality in Fremont, California is 44, 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 7.878 μg/m³.

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

The current PM₁₀ concentration at Fremont, California is 28.585 μg/m³.

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

The current carbon monoxide (CO) concentration at Fremont, California is 0.397 ppm.

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

The current sulfur dioxide (SO₂) concentration at Fremont, California is 0.698 ppb.

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

The current ozone (O₃) concentration at Fremont, California is 17.52 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Fremont, California is 11.495 ppb.

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