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

The current PM10 concentration at Hayward, California is 29.568 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Hayward, California is 2.001 ppb.

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

The current ozone (O3) concentration at Hayward, California is 30.686 ppm.

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

The current nitrogen dioxide (NO2) concentration at Hayward, California is 20.575 ppb.

Hayward, California live air quality index now

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

The current PM2.5 concentration at Hayward, California is 6.595 μg/m3.

Stay updated with real-time air quality in Hayward, 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

Hayward, California

Last updated: ... (Local time)

Major air pollutants in Hayward, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.59 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

29.57 μg/m³

155

255

425

605+

Ozone (O₃)

30.69 ppb

201

201+

Sulfur Dioxide (SO₂)

2.00 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

20.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

Please contact us for custom requests

Hayward, California

Scroll To Air Quality Map

Track live Hayward, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-08T04:00:00.000Z	33 \| good	6.049 \| good	29.08 \| good	33 \| good	0.391 \| good	13.158 \| good	0.436 \| good
2026-03-08T05:00:00.000Z	30 \| good	4.483 \| good	20.974 \| good	32 \| good	0.499 \| good	11.938 \| good	0.523 \| good
2026-03-08T06:00:00.000Z	44 \| good	8.248 \| good	38.27 \| good	32 \| good	0.51 \| good	7.903 \| good	0.386 \| good
2026-03-08T07:00:00.000Z	54 \| moderate	11.178 \| good	37.86 \| good	34 \| good	0.467 \| good	11.246 \| good	0.43 \| good
2026-03-08T08:00:00.000Z	56 \| moderate	12.487 \| fine	30.252 \| good	33 \| good	0.46 \| good	11.859 \| good	0.46 \| good
2026-03-08T09:00:00.000Z	52 \| moderate	10.074 \| good	26.393 \| good	33 \| good	0.491 \| good	12.834 \| good	0.46 \| good
2026-03-08T10:00:00.000Z	52 \| moderate	9.624 \| good	34.818 \| good	33 \| good	0.346 \| good	7.668 \| good	0.227 \| good
2026-03-08T11:00:00.000Z	54 \| moderate	11.426 \| good	43.972 \| good	33 \| good	0.376 \| good	7.298 \| good	0.2 \| good
2026-03-08T12:00:00.000Z	49 \| good	9.377 \| good	34.4 \| good	24.907 \| good	0.166 \| good	14.847 \| good	0.546 \| good
2026-03-08T13:00:00.000Z	28 \| good	3.949 \| good	15.856 \| good	30 \| good	0.435 \| good	10.824 \| good	0.416 \| good
2026-03-08T14:00:00.000Z	28 \| good	3.924 \| good	16.614 \| good	30 \| good	0.42 \| good	11.273 \| good	0.424 \| good
2026-03-08T15:00:00.000Z	38 \| good	6.629 \| good	21.557 \| good	30 \| good	0.477 \| good	11.799 \| good	0.397 \| good
2026-03-08T16:00:00.000Z	28 \| good	3.863 \| good	19.241 \| good	30 \| good	0.493 \| good	12.373 \| good	0.392 \| good
2026-03-08T17:00:00.000Z	29 \| good	4.267 \| good	12.395 \| good	31 \| good	0.901 \| good	10.228 \| good	0.449 \| good
2026-03-08T18:00:00.000Z	29 \| good	4.535 \| good	12.837 \| good	31 \| good	1.106 \| good	10.808 \| good	0.412 \| good
2026-03-08T19:00:00.000Z	28 \| good	3.994 \| good	15.378 \| good	30 \| good	1.12 \| good	9.539 \| good	0.377 \| good
2026-03-08T20:00:00.000Z	44 \| good	7.96 \| good	24.889 \| good	31 \| good	1.104 \| good	5.894 \| good	0.355 \| good
2026-03-08T21:00:00.000Z	38 \| good	7.441 \| good	26.866 \| good	32 \| good	0.853 \| good	5.158 \| good	0.355 \| good
2026-03-08T22:00:00.000Z	32 \| good	5.251 \| good	23.467 \| good	35 \| good	0.664 \| good	4.423 \| good	0.311 \| good
2026-03-08T23:00:00.000Z	35 \| good	5.495 \| good	24.028 \| good	38 \| good	0.695 \| good	5.174 \| good	0.29 \| good
2026-03-09T00:00:00.000Z	38 \| good	6.992 \| good	36.352 \| good	40 \| good	0.469 \| good	5.205 \| good	0.29 \| good
2026-03-09T01:00:00.000Z	44 \| good	7.568 \| good	35.028 \| good	42 \| good	0.451 \| good	5.695 \| good	0.324 \| good
2026-03-09T02:00:00.000Z	52 \| moderate	10.281 \| good	46.29 \| good	43 \| good	0.528 \| good	5.874 \| good	0.311 \| good
2026-03-09T03:00:00.000Z	67 \| moderate	18.006 \| fine	79.736 \| fine	32.219 \| good	2.974 \| good	31.588 \| good	0.34 \| good
2026-03-09T04:00:00.000Z	52 \| moderate	9.892 \| good	38.332 \| good	43 \| good	0.514 \| good	14.224 \| good	0.363 \| good
2026-03-09T05:00:00.000Z	49 \| good	9.345 \| good	42.631 \| good	40 \| good	0.452 \| good	13.897 \| good	0.369 \| good
2026-03-09T06:00:00.000Z	52 \| moderate	10.448 \| good	44.805 \| good	43 \| good	0.529 \| good	10.642 \| good	0.333 \| good
2026-03-09T07:00:00.000Z	44 \| good	8.265 \| good	40.009 \| good	38 \| good	0.549 \| good	8.205 \| good	0.328 \| good
2026-03-09T08:00:00.000Z	55 \| moderate	7.571 \| good	64.473 \| fine	39 \| good	0.584 \| good	7.136 \| good	0.314 \| good
2026-03-09T09:00:00.000Z	55 \| moderate	10.435 \| good	64.317 \| fine	38 \| good	0.558 \| good	5.699 \| good	0.279 \| good
2026-03-09T10:00:00.000Z	50 \| good	9.27 \| good	53.506 \| good	33 \| good	0.519 \| good	6.771 \| good	0.337 \| good
2026-03-09T11:00:00.000Z	44 \| good	7.971 \| good	34.776 \| good	29 \| good	0.636 \| good	6.14 \| good	0.287 \| good
2026-03-09T12:00:00.000Z	52 \| moderate	9.982 \| good	49.106 \| good	29 \| good	0.609 \| good	6.376 \| good	0.288 \| good
2026-03-09T13:00:00.000Z	38 \| good	7.114 \| good	39.774 \| good	26 \| good	0.576 \| good	7.532 \| good	0.41 \| good
2026-03-09T14:00:00.000Z	49 \| good	8.55 \| good	51.177 \| good	26 \| good	0.661 \| good	10.708 \| good	0.442 \| good
2026-03-09T15:00:00.000Z	49 \| good	8.531 \| good	26.66 \| good	28 \| good	0.595 \| good	11.952 \| good	0.461 \| good
2026-03-09T16:00:00.000Z	33 \| good	6.384 \| good	26.686 \| good	23 \| good	0.656 \| good	15.067 \| good	0.555 \| good
2026-03-09T17:00:00.000Z	38 \| good	7.454 \| good	32.452 \| good	23 \| good	0.675 \| good	13.044 \| good	0.478 \| good
2026-03-09T18:00:00.000Z	54 \| moderate	10.568 \| good	46.961 \| good	24 \| good	0.352 \| good	9.287 \| good	0.377 \| good
2026-03-09T19:00:00.000Z	56 \| moderate	12.037 \| good	50.859 \| good	24 \| good	0.632 \| good	7.924 \| good	0.385 \| good
2026-03-09T20:00:00.000Z	56 \| moderate	11.582 \| good	43.485 \| good	25 \| good	0.814 \| good	7.63 \| good	0.311 \| good
2026-03-09T21:00:00.000Z	58 \| moderate	12.713 \| fine	59.308 \| fine	26 \| good	0.756 \| good	4.815 \| good	0.333 \| good
2026-03-09T22:00:00.000Z	54 \| moderate	11.025 \| good	43.921 \| good	27 \| good	0.761 \| good	5.013 \| good	0.346 \| good
2026-03-09T23:00:00.000Z	49 \| good	9.276 \| good	33.655 \| good	26 \| good	0.921 \| good	7.432 \| good	0.311 \| good
2026-03-10T00:00:00.000Z	38 \| good	7.135 \| good	29.409 \| good	30 \| good	0.67 \| good	6.752 \| good	0.277 \| good
2026-03-10T01:00:00.000Z	44 \| good	8.245 \| good	34.874 \| good	32 \| good	0.679 \| good	4.264 \| good	0.277 \| good
2026-03-10T02:00:00.000Z	49 \| good	8.503 \| good	24.516 \| good	34 \| good	0.678 \| good	2.97 \| good	0.242 \| good
2026-03-10T03:00:00.000Z	38 \| good	6.76 \| good	30.248 \| good	30.532 \| good	2.136 \| good	22.211 \| good	0.239 \| good
2026-03-10T03:00:00.000Z	38 \| good	6.595 \| good	29.568 \| good	30.686 \| good	2.001 \| good	20.575 \| good	0.232 \| good
2026-03-10T04:00:00.000Z	44 \| good	7.957 \| good	34.79 \| good	30.557 \| good	1.608 \| good	22.286 \| good	0.224 \| good
2026-03-10T05:00:00.000Z	38 \| good	6.82 \| good	30.318 \| good	30.911 \| good	1.547 \| good	24.828 \| good	0.234 \| good
2026-03-10T06:00:00.000Z	44 \| good	7.652 \| good	33.81 \| good	31.903 \| good	1.485 \| good	27.37 \| good	0.244 \| good
2026-03-10T07:00:00.000Z	34 \| good	6.103 \| good	26.713 \| good	36.588 \| good	1.37 \| good	25.116 \| good	0.235 \| good
2026-03-10T08:00:00.000Z	34 \| good	4.654 \| good	20.516 \| good	37.474 \| good	1.254 \| good	22.862 \| good	0.226 \| good
2026-03-10T09:00:00.000Z	33 \| good	6.08 \| good	27.051 \| good	33.847 \| good	1.139 \| good	20.607 \| good	0.217 \| good
2026-03-10T10:00:00.000Z	49 \| good	9.077 \| good	40.286 \| good	31.149 \| good	1.086 \| good	18.228 \| good	0.207 \| good
2026-03-10T11:00:00.000Z	52 \| moderate	10.475 \| good	46.218 \| good	31.194 \| good	1.033 \| good	15.849 \| good	0.196 \| good
2026-03-10T12:00:00.000Z	49 \| good	8.507 \| good	37.107 \| good	29.138 \| good	0.979 \| good	13.469 \| good	0.186 \| good
2026-03-10T13:00:00.000Z	44 \| good	7.523 \| good	33.062 \| good	30.489 \| good	1.009 \| good	14.273 \| good	0.194 \| good
2026-03-10T14:00:00.000Z	44 \| good	8.048 \| good	35.152 \| good	28.954 \| good	1.039 \| good	15.077 \| good	0.201 \| good
2026-03-10T15:00:00.000Z	38 \| good	6.514 \| good	29.166 \| good	28.328 \| good	1.069 \| good	15.881 \| good	0.209 \| good
2026-03-10T16:00:00.000Z	30 \| good	5.398 \| good	23.043 \| good	32.45 \| good	1.175 \| good	12.586 \| good	0.194 \| good
2026-03-10T17:00:00.000Z	33 \| good	4.98 \| good	21.61 \| good	36.5 \| good	1.282 \| good	9.291 \| good	0.178 \| good
2026-03-10T18:00:00.000Z	38 \| good	7.204 \| good	31.919 \| good	35.767 \| good	1.388 \| good	5.996 \| good	0.162 \| good
2026-03-10T19:00:00.000Z	38 \| good	7.054 \| good	31.467 \| good	37.488 \| good	1.397 \| good	5.508 \| good	0.16 \| good
2026-03-10T20:00:00.000Z	36 \| good	5.776 \| good	24.857 \| good	39.193 \| good	1.406 \| good	5.019 \| good	0.158 \| good
2026-03-10T21:00:00.000Z	38 \| good	6.618 \| good	29.267 \| good	40.645 \| good	1.415 \| good	4.531 \| good	0.156 \| good
2026-03-10T22:00:00.000Z	38 \| good	6.749 \| good	30.324 \| good	40.628 \| good	1.366 \| good	4.518 \| good	0.154 \| good
2026-03-10T23:00:00.000Z	38 \| good	7.223 \| good	32.198 \| good	37.893 \| good	1.317 \| good	4.504 \| good	0.153 \| good
2026-03-11T00:00:00.000Z	35 \| good	5.201 \| good	22.258 \| good	37.767 \| good	1.268 \| good	4.49 \| good	0.151 \| good
2026-03-11T01:00:00.000Z	32 \| good	5.362 \| good	23.408 \| good	34.839 \| good	1.278 \| good	9.858 \| good	0.176 \| good
2026-03-11T02:00:00.000Z	49 \| good	8.843 \| good	38.981 \| good	31.353 \| good	1.288 \| good	15.227 \| good	0.201 \| good
2026-03-11T03:00:00.000Z	52 \| moderate	9.566 \| good	42.943 \| good	29.165 \| good	1.298 \| good	20.595 \| good	0.227 \| good
2026-03-11T04:00:00.000Z	54 \| moderate	10.929 \| good	48.142 \| good	28.404 \| good	1.372 \| good	22.719 \| good	0.255 \| good
2026-03-11T05:00:00.000Z	54 \| moderate	11.16 \| good	49.501 \| good	27.748 \| good	1.446 \| good	24.844 \| good	0.283 \| good
2026-03-11T06:00:00.000Z	64 \| moderate	15.727 \| fine	17.486 \| good	7.812 \| good	1.558 \| good	27.699 \| good	0.317 \| good
2026-03-11T07:00:00.000Z	56 \| moderate	11.828 \| good	52.96 \| good	27.04 \| good	1.513 \| good	26.743 \| good	0.315 \| good
2026-03-11T08:00:00.000Z	44 \| good	8.374 \| good	36.63 \| good	26.902 \| good	1.505 \| good	26.516 \| good	0.319 \| good
2026-03-11T09:00:00.000Z	44 \| good	8.156 \| good	36.093 \| good	26.018 \| good	1.497 \| good	26.29 \| good	0.322 \| good
2026-03-11T10:00:00.000Z	52 \| moderate	10.41 \| good	46.478 \| good	26.6 \| good	1.482 \| good	25.329 \| good	0.31 \| good
2026-03-11T11:00:00.000Z	54 \| moderate	10.821 \| good	47.946 \| good	25.36 \| good	1.466 \| good	24.369 \| good	0.299 \| good
2026-03-11T12:00:00.000Z	67 \| moderate	17.531 \| fine	19.457 \| good	8.003 \| good	1.488 \| good	23.955 \| good	0.29 \| good
2026-03-11T13:00:00.000Z	66 \| moderate	16.735 \| fine	18.627 \| good	8.349 \| good	1.601 \| good	23.083 \| good	0.304 \| good
2026-03-11T14:00:00.000Z	66 \| moderate	16.841 \| fine	18.722 \| good	8.696 \| good	1.714 \| good	22.212 \| good	0.319 \| good
2026-03-11T15:00:00.000Z	69 \| moderate	19.121 \| fine	20.836 \| good	9.043 \| good	1.827 \| good	21.341 \| good	0.333 \| good
2026-03-11T16:00:00.000Z	69 \| moderate	18.591 \| fine	19.974 \| good	15.53 \| good	2.125 \| good	18.345 \| good	0.296 \| good
2026-03-11T17:00:00.000Z	49 \| good	8.602 \| good	37.754 \| good	27.966 \| good	2.368 \| good	15.047 \| good	0.257 \| good
2026-03-11T18:00:00.000Z	54 \| moderate	11.211 \| good	13.227 \| good	28.505 \| good	2.719 \| good	12.353 \| good	0.223 \| good
2026-03-11T19:00:00.000Z	49 \| good	8.883 \| good	11.1 \| good	34.145 \| good	2.331 \| good	10.084 \| good	0.204 \| good
2026-03-11T20:00:00.000Z	44 \| good	7.514 \| good	9.653 \| good	39.786 \| good	1.942 \| good	7.815 \| good	0.186 \| good
2026-03-11T21:00:00.000Z	42 \| good	6.908 \| good	9.003 \| good	45.426 \| good	1.554 \| good	5.546 \| good	0.168 \| good
2026-03-11T22:00:00.000Z	43 \| good	6.883 \| good	8.982 \| good	46.254 \| good	1.54 \| good	5.478 \| good	0.168 \| good
2026-03-11T23:00:00.000Z	44 \| good	7.036 \| good	9.131 \| good	47.083 \| good	1.526 \| good	5.411 \| good	0.168 \| good
2026-03-12T00:00:00.000Z	44 \| good	7.542 \| good	9.719 \| good	47.912 \| good	1.511 \| good	5.344 \| good	0.168 \| good
2026-03-12T01:00:00.000Z	49 \| good	8.765 \| good	11.073 \| good	36.347 \| good	1.671 \| good	13.133 \| good	0.212 \| good
2026-03-12T02:00:00.000Z	56 \| moderate	11.795 \| good	13.998 \| good	24.782 \| good	1.83 \| good	20.923 \| good	0.255 \| good
2026-03-12T03:00:00.000Z	64 \| moderate	15.676 \| fine	17.902 \| good	13.217 \| good	1.989 \| good	28.713 \| good	0.299 \| good

Hayward

Get reliable air quality data to drive your business

Hayward, California air quality map: Track AQI near you

0.24ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is the air quality data for Hayward, California updated?

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

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

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

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

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

What is the current air quality in Hayward, California?

The current air quality in Hayward, California is 38, categorized as Good based on real-time data.

What pollutant is the most common in Hayward, California?

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

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

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

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

The current PM_2.5 concentration at Hayward, California is 6.595 μg/m³.

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

The current PM₁₀ concentration at Hayward, California is 29.568 μg/m³.

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

The current carbon monoxide (CO) concentration at Hayward, California is 0.232 ppm.

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

The current sulfur dioxide (SO₂) concentration at Hayward, California is 2.001 ppb.

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

The current ozone (O₃) concentration at Hayward, California is 30.686 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Hayward, California is 20.575 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions