What are the current PM10 levels at Eureka, California?

The current PM10 levels in Eureka, California are 23.005 μg/m3.

What are the current sulfur dioxide (SO2) levels at Eureka, California?

The current sulfur dioxide (SO2) levels in Eureka, California are 0.282 ppb.

What are the current ozone (O3) levels at Eureka, California?

The current ozone (O3) levels at Eureka, California is 26.89 ppm.

What are the current nitrogen dioxide (NO2) levels at Eureka, California?

The current nitrogen dioxide (NO2) levels at Eureka, California is 2.522 ppb.

Real-time air quality index in Eureka, California today

Q: What are the current PM2.5 levels in Eureka, California?

The measured PM2.5 levels in Eureka, California at present are 5.002 μg/m3.

Stay updated with real-time air quality in Eureka, 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

Eureka, California

Last updated: ... (Local time)

Common air pollutants in Eureka, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.00 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.00 μg/m³

155

255

425

605+

Ozone (O₃)

26.89 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.52 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Eureka, California

Get Live Pollen Counts

Eureka, California

Scroll To Air Quality Map

Track live Eureka, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-30T08:00:00.000Z	38 \| good	7.2 \| good	31.997 \| good	29.811 \| good	0.324 \| good	2.655 \| good	0.2 \| good
2026-04-30T09:00:00.000Z	38 \| good	6.699 \| good	29.997 \| good	33.821 \| good	0.303 \| good	3.127 \| good	0.2 \| good
2026-04-30T10:00:00.000Z	30 \| good	5.499 \| good	24.99 \| good	31.931 \| good	0.38 \| good	2.844 \| good	0.22 \| good
2026-04-30T11:00:00.000Z	31 \| good	4.998 \| good	22.99 \| good	32.9 \| good	0.324 \| good	3.798 \| good	0.22 \| good
2026-04-30T12:00:00.000Z	31 \| good	4.297 \| good	18.987 \| good	33.391 \| good	0.324 \| good	2.647 \| good	0.22 \| good
2026-04-30T13:00:00.000Z	31 \| good	4.298 \| good	18.988 \| good	34.106 \| good	0.364 \| good	2.799 \| good	0.257 \| good
2026-04-30T14:00:00.000Z	28 \| good	3.999 \| good	17.994 \| good	29.906 \| good	0.364 \| good	5.16 \| good	0.296 \| good
2026-04-30T15:00:00.000Z	33 \| good	3.603 \| good	16.012 \| good	35.62 \| good	0.344 \| good	6.591 \| good	0.315 \| good
2026-04-30T16:00:00.000Z	22 \| good	3.302 \| good	15.006 \| good	24.017 \| good	0.365 \| good	5.768 \| good	0.319 \| good
2026-04-30T17:00:00.000Z	22 \| good	2.806 \| good	13.025 \| good	24.25 \| good	0.365 \| good	4.692 \| good	0.337 \| good
2026-04-30T18:00:00.000Z	26 \| good	3.605 \| good	16.022 \| good	28.283 \| good	0.344 \| good	3.134 \| good	0.299 \| good
2026-04-30T19:00:00.000Z	27 \| good	4.005 \| good	18.022 \| good	29.111 \| good	0.363 \| good	2.503 \| good	0.299 \| good
2026-04-30T20:00:00.000Z	33 \| good	4.503 \| good	20.015 \| good	36.077 \| good	0.365 \| good	2.12 \| good	0.299 \| good
2026-04-30T21:00:00.000Z	33 \| good	4.002 \| good	18.007 \| good	36.076 \| good	0.404 \| good	1.91 \| good	0.237 \| good
2026-04-30T22:00:00.000Z	35 \| good	4.301 \| good	19.002 \| good	37.591 \| good	0.363 \| good	1.728 \| good	0.275 \| good
2026-04-30T23:00:00.000Z	36 \| good	4.303 \| good	19.012 \| good	38.52 \| good	0.384 \| good	1.75 \| good	0.275 \| good
2026-05-01T00:00:00.000Z	37 \| good	5.183 \| good	22.432 \| good	40.342 \| good	0.084 \| good	0.425 \| good	0.121 \| good
2026-05-01T01:00:00.000Z	36 \| good	4.303 \| good	19.012 \| good	38.828 \| good	0.072 \| good	0.5 \| good	0.12 \| good
2026-05-01T02:00:00.000Z	37 \| good	4.828 \| good	21 \| good	39.616 \| good	0.071 \| good	0.689 \| good	0.121 \| good
2026-05-01T03:00:00.000Z	36 \| good	5.498 \| good	24.99 \| good	38.555 \| good	0.345 \| good	1.545 \| good	0.256 \| good
2026-05-01T04:00:00.000Z	33 \| good	6.001 \| good	27.003 \| good	34.141 \| good	0.404 \| good	2.058 \| good	0.237 \| good
2026-05-01T05:00:00.000Z	33 \| good	5.707 \| good	26.03 \| good	30.133 \| good	0.401 \| good	3.568 \| good	0.257 \| good
2026-05-01T06:00:00.000Z	33 \| good	5.699 \| good	25.995 \| good	32.086 \| good	0.381 \| good	3.452 \| good	0.237 \| good
2026-05-01T07:00:00.000Z	33 \| good	5.994 \| good	26.973 \| good	30.312 \| good	0.283 \| good	3.578 \| good	0.237 \| good
2026-05-01T08:00:00.000Z	29 \| good	4.801 \| good	22.013 \| good	30.519 \| good	0.32 \| good	3.199 \| good	0.219 \| good
2026-05-01T09:00:00.000Z	28 \| good	4.501 \| good	21.005 \| good	30.171 \| good	0.284 \| good	2.415 \| good	0.238 \| good
2026-05-01T10:00:00.000Z	27 \| good	4.3 \| good	19.008 \| good	28.542 \| good	0.302 \| good	2.725 \| good	0.219 \| good
2026-05-01T11:00:00.000Z	31 \| good	3.797 \| good	16.984 \| good	33.354 \| good	0.341 \| good	2.359 \| good	0.219 \| good
2026-05-01T12:00:00.000Z	32 \| good	3.799 \| good	16.993 \| good	34.53 \| good	0.32 \| good	2.125 \| good	0.238 \| good
2026-05-01T13:00:00.000Z	30 \| good	3.799 \| good	16.994 \| good	31.591 \| good	0.342 \| good	2.175 \| good	0.238 \| good
2026-05-01T14:00:00.000Z	30 \| good	4.5 \| good	20.998 \| good	32.31 \| good	0.323 \| good	4.087 \| good	0.277 \| good
2026-05-01T15:00:00.000Z	31 \| good	4.501 \| good	21.003 \| good	33.68 \| good	0.283 \| good	5.498 \| good	0.295 \| good
2026-05-01T16:00:00.000Z	22 \| good	4.498 \| good	19.991 \| good	20.461 \| good	0.303 \| good	5.84 \| good	0.295 \| good
2026-05-01T17:00:00.000Z	23 \| good	3.099 \| good	13.995 \| good	25.101 \| good	0.304 \| good	2.749 \| good	0.28 \| good
2026-05-01T18:00:00.000Z	22 \| good	3.298 \| good	14.99 \| good	24.455 \| good	0.303 \| good	1.999 \| good	0.299 \| good
2026-05-01T19:00:00.000Z	25 \| good	3.598 \| good	15.991 \| good	27.29 \| good	0.308 \| good	1.837 \| good	0.28 \| good
2026-05-01T20:00:00.000Z	27 \| good	2.798 \| good	12.992 \| good	29.171 \| good	0.328 \| good	1.781 \| good	0.28 \| good
2026-05-01T21:00:00.000Z	26 \| good	3.797 \| good	16.987 \| good	28.275 \| good	0.283 \| good	1.58 \| good	0.28 \| good
2026-05-01T22:00:00.000Z	28 \| good	4.493 \| good	20.966 \| good	29.786 \| good	0.36 \| good	1.723 \| good	0.28 \| good
2026-05-01T23:00:00.000Z	28 \| good	4.794 \| good	21.971 \| good	29.747 \| good	0.284 \| good	1.727 \| good	0.28 \| good
2026-05-02T00:00:00.000Z	29 \| good	4.799 \| good	21.987 \| good	30.564 \| good	0.339 \| good	1.822 \| good	0.299 \| good
2026-05-02T01:00:00.000Z	27 \| good	4.801 \| good	22.003 \| good	28.984 \| good	0.36 \| good	1.599 \| good	0.299 \| good
2026-05-02T02:00:00.000Z	27 \| good	5.197 \| good	23.986 \| good	26.37 \| good	0.357 \| good	1.751 \| good	0.317 \| good
2026-05-02T03:00:00.000Z	27 \| good	5.005 \| good	23.021 \| good	27.931 \| good	0.284 \| good	1.586 \| good	0.275 \| good
2026-05-02T04:00:00.000Z	28 \| good	5.204 \| good	24.017 \| good	29.522 \| good	0.321 \| good	2.176 \| good	0.238 \| good
2026-05-02T05:00:00.000Z	27 \| good	5.496 \| good	24.98 \| good	27.988 \| good	0.321 \| good	2.779 \| good	0.257 \| good
2026-05-02T06:00:00.000Z	27 \| good	5.002 \| good	23.005 \| good	26.89 \| good	0.282 \| good	2.522 \| good	0.257 \| good
2026-05-02T07:00:00.000Z	27 \| good	5.002 \| good	23.005 \| good	26.89 \| good	0.282 \| good	2.522 \| good	0.257 \| good
2026-05-02T08:00:00.000Z	27 \| good	3.925 \| good	17.208 \| good	29.292 \| good	0.055 \| good	0.858 \| good	0.105 \| good
2026-05-02T09:00:00.000Z	27 \| good	4.176 \| good	18.424 \| good	28.932 \| good	0.058 \| good	0.885 \| good	0.106 \| good
2026-05-02T10:00:00.000Z	27 \| good	4.163 \| good	18.255 \| good	28.523 \| good	0.06 \| good	0.855 \| good	0.105 \| good
2026-05-02T11:00:00.000Z	27 \| good	4.652 \| good	20.317 \| good	28.03 \| good	0.062 \| good	0.826 \| good	0.105 \| good
2026-05-02T12:00:00.000Z	27 \| good	4.879 \| good	21.034 \| good	27.522 \| good	0.064 \| good	0.796 \| good	0.104 \| good
2026-05-02T13:00:00.000Z	27 \| good	4.886 \| good	21.034 \| good	27.18 \| good	0.062 \| good	0.795 \| good	0.105 \| good
2026-05-02T14:00:00.000Z	27 \| good	5.371 \| good	23 \| good	27.836 \| good	0.061 \| good	0.795 \| good	0.106 \| good
2026-05-02T15:00:00.000Z	27 \| good	5.306 \| good	23 \| good	28.418 \| good	0.059 \| good	0.795 \| good	0.107 \| good
2026-05-02T16:00:00.000Z	27 \| good	5.489 \| good	23.494 \| good	29.194 \| good	0.076 \| good	0.755 \| good	0.109 \| good
2026-05-02T17:00:00.000Z	33 \| good	6.025 \| good	26.858 \| good	30.631 \| good	0.093 \| good	0.716 \| good	0.112 \| good
2026-05-02T18:00:00.000Z	38 \| good	6.682 \| good	29.755 \| good	32.008 \| good	0.11 \| good	0.677 \| good	0.114 \| good
2026-05-02T19:00:00.000Z	38 \| good	7.187 \| good	31.691 \| good	33.488 \| good	0.11 \| good	0.591 \| good	0.113 \| good
2026-05-02T20:00:00.000Z	38 \| good	6.977 \| good	30.942 \| good	34.871 \| good	0.11 \| good	0.506 \| good	0.113 \| good
2026-05-02T21:00:00.000Z	33 \| good	6.497 \| good	29.033 \| good	35.655 \| good	0.109 \| good	0.421 \| good	0.112 \| good
2026-05-02T22:00:00.000Z	33 \| good	6.376 \| good	28.314 \| good	36.117 \| good	0.107 \| good	0.476 \| good	0.112 \| good
2026-05-02T23:00:00.000Z	33 \| good	6.107 \| good	27.326 \| good	36.101 \| good	0.104 \| good	0.531 \| good	0.112 \| good
2026-05-03T00:00:00.000Z	33 \| good	6.081 \| good	27.293 \| good	35.988 \| good	0.101 \| good	0.586 \| good	0.113 \| good
2026-05-03T01:00:00.000Z	33 \| good	5.947 \| good	26.068 \| good	35.355 \| good	0.106 \| good	1.336 \| good	0.119 \| good
2026-05-03T02:00:00.000Z	31 \| good	4.974 \| good	21.614 \| good	34.395 \| good	0.11 \| good	2.087 \| good	0.125 \| good
2026-05-03T03:00:00.000Z	31 \| good	4.411 \| good	19.54 \| good	32.596 \| good	0.115 \| good	2.837 \| good	0.132 \| good
2026-05-03T04:00:00.000Z	33 \| good	5.589 \| good	24.307 \| good	32.054 \| good	0.135 \| good	3.833 \| good	0.142 \| good
2026-05-03T05:00:00.000Z	33 \| good	5.537 \| good	23.907 \| good	32.014 \| good	0.156 \| good	4.829 \| good	0.153 \| good
2026-05-03T06:00:00.000Z	30 \| good	5.39 \| good	23.285 \| good	32.101 \| good	0.176 \| good	5.825 \| good	0.164 \| good
2026-05-03T07:00:00.000Z	30 \| good	5.321 \| good	22.813 \| good	32.003 \| good	0.142 \| good	5.048 \| good	0.159 \| good
2026-05-03T08:00:00.000Z	33 \| good	5.707 \| good	24.818 \| good	31.921 \| good	0.107 \| good	4.271 \| good	0.154 \| good
2026-05-03T09:00:00.000Z	30 \| good	5.413 \| good	23.155 \| good	32.139 \| good	0.073 \| good	3.493 \| good	0.148 \| good
2026-05-03T10:00:00.000Z	30 \| good	4.854 \| good	21.047 \| good	32.35 \| good	0.073 \| good	3.393 \| good	0.149 \| good
2026-05-03T11:00:00.000Z	30 \| good	4.679 \| good	20.118 \| good	32.432 \| good	0.073 \| good	3.293 \| good	0.149 \| good
2026-05-03T12:00:00.000Z	30 \| good	4.658 \| good	20.118 \| good	32.476 \| good	0.072 \| good	3.193 \| good	0.15 \| good
2026-05-03T13:00:00.000Z	30 \| good	5.235 \| good	22.494 \| good	32.425 \| good	0.07 \| good	2.995 \| good	0.15 \| good
2026-05-03T14:00:00.000Z	33 \| good	5.534 \| good	23.792 \| good	32.552 \| good	0.067 \| good	2.797 \| good	0.149 \| good
2026-05-03T15:00:00.000Z	31 \| good	5.464 \| good	23.545 \| good	32.887 \| good	0.064 \| good	2.599 \| good	0.149 \| good
2026-05-03T16:00:00.000Z	33 \| good	5.797 \| good	25.086 \| good	34.124 \| good	0.079 \| good	2.33 \| good	0.148 \| good
2026-05-03T17:00:00.000Z	38 \| good	6.779 \| good	30.113 \| good	35.828 \| good	0.095 \| good	2.061 \| good	0.146 \| good
2026-05-03T18:00:00.000Z	38 \| good	7.371 \| good	32.498 \| good	37.892 \| good	0.11 \| good	1.792 \| good	0.145 \| good
2026-05-03T19:00:00.000Z	44 \| good	7.719 \| good	33.715 \| good	40.005 \| good	0.108 \| good	1.445 \| good	0.138 \| good
2026-05-03T20:00:00.000Z	38 \| good	7.417 \| good	32.631 \| good	41.221 \| good	0.106 \| good	1.097 \| good	0.13 \| good
2026-05-03T21:00:00.000Z	38 \| good	6.881 \| good	30.458 \| good	41.105 \| good	0.104 \| good	0.75 \| good	0.123 \| good
2026-05-03T22:00:00.000Z	38 \| good	6.877 \| good	30.6 \| good	40.895 \| good	0.092 \| good	1.064 \| good	0.124 \| good
2026-05-03T23:00:00.000Z	38 \| good	7.073 \| good	31.364 \| good	40.658 \| good	0.081 \| good	1.379 \| good	0.125 \| good
2026-05-04T00:00:00.000Z	37 \| good	6.416 \| good	28.634 \| good	39.854 \| good	0.069 \| good	1.693 \| good	0.126 \| good
2026-05-04T01:00:00.000Z	36 \| good	6.483 \| good	28.935 \| good	38.533 \| good	0.073 \| good	2.208 \| good	0.13 \| good
2026-05-04T02:00:00.000Z	34 \| good	5.43 \| good	23.397 \| good	37.088 \| good	0.078 \| good	2.724 \| good	0.134 \| good
2026-05-04T03:00:00.000Z	33 \| good	4.67 \| good	20.256 \| good	35.842 \| good	0.083 \| good	3.24 \| good	0.138 \| good
2026-05-04T04:00:00.000Z	32 \| good	5.368 \| good	23.316 \| good	34.991 \| good	0.113 \| good	3.077 \| good	0.137 \| good
2026-05-04T05:00:00.000Z	32 \| good	5.493 \| good	23.74 \| good	34.806 \| good	0.142 \| good	2.915 \| good	0.135 \| good
2026-05-04T06:00:00.000Z	49 \| good	8.893 \| good	12.675 \| good	32.939 \| good	0.17 \| good	2.768 \| good	0.134 \| good
2026-05-04T07:00:00.000Z	33 \| good	5.653 \| good	24.462 \| good	33.6 \| good	0.172 \| good	2.403 \| good	0.129 \| good

Eureka

Empower business decisions with accurate air quality data

Eureka, California air quality map: Real-time AQI near you

0.22ppm

How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Eureka, California updated?

Air quality data for Eureka, California is updated on an hourly basis.

When did Eureka, California experience the worst air quality in the last 24 hours?

The worst air quality in Eureka, California was recorded at 07:00:00 on 2026-05-01.

When did Eureka, California have its best air quality in the last 24 hours?

The best air quality in Eureka, California was recorded at 06:00:00 on 2026-05-01.

What is the real-time air quality index for Eureka, California?

The real-time air quality index in Eureka, California is 27, currently categorized as Good.

Which pollutant is found most often in Eureka, California?

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

What can I do if the air quality in Eureka, California is poor?

If the air quality in Eureka, California is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Eureka, California?

The measured PM_2.5 levels in Eureka, California at present are 5.002 μg/m³.

What are the current PM₁₀ levels at Eureka, California?

The current PM₁₀ levels in Eureka, California are 23.005 μg/m³.

What are the current carbon monoxide (CO) levels at Eureka, California?

The current carbon monoxide (CO) level in Eureka, California is 0.257 ppm.

What are the current sulfur dioxide (SO₂) levels at Eureka, California?

The current sulfur dioxide (SO₂) levels in Eureka, California are 0.282 ppb.

What are the current ozone (O₃) levels at Eureka, California?

The current ozone (O₃) levels at Eureka, California is 26.89 ppm.

What are the current nitrogen dioxide (NO₂) levels at Eureka, California?

The current nitrogen dioxide (NO₂) levels at Eureka, California is 2.522 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-30T08:00:00.000Z	38 \| good	7.2 \| good	31.997 \| good	29.811 \| good	0.324 \| good	2.655 \| good	0.2 \| good
2026-04-30T09:00:00.000Z	38 \| good	6.699 \| good	29.997 \| good	33.821 \| good	0.303 \| good	3.127 \| good	0.2 \| good
2026-04-30T10:00:00.000Z	30 \| good	5.499 \| good	24.99 \| good	31.931 \| good	0.38 \| good	2.844 \| good	0.22 \| good
2026-04-30T11:00:00.000Z	31 \| good	4.998 \| good	22.99 \| good	32.9 \| good	0.324 \| good	3.798 \| good	0.22 \| good
2026-04-30T12:00:00.000Z	31 \| good	4.297 \| good	18.987 \| good	33.391 \| good	0.324 \| good	2.647 \| good	0.22 \| good
2026-04-30T13:00:00.000Z	31 \| good	4.298 \| good	18.988 \| good	34.106 \| good	0.364 \| good	2.799 \| good	0.257 \| good
2026-04-30T14:00:00.000Z	28 \| good	3.999 \| good	17.994 \| good	29.906 \| good	0.364 \| good	5.16 \| good	0.296 \| good
2026-04-30T15:00:00.000Z	33 \| good	3.603 \| good	16.012 \| good	35.62 \| good	0.344 \| good	6.591 \| good	0.315 \| good
2026-04-30T16:00:00.000Z	22 \| good	3.302 \| good	15.006 \| good	24.017 \| good	0.365 \| good	5.768 \| good	0.319 \| good
2026-04-30T17:00:00.000Z	22 \| good	2.806 \| good	13.025 \| good	24.25 \| good	0.365 \| good	4.692 \| good	0.337 \| good
2026-04-30T18:00:00.000Z	26 \| good	3.605 \| good	16.022 \| good	28.283 \| good	0.344 \| good	3.134 \| good	0.299 \| good
2026-04-30T19:00:00.000Z	27 \| good	4.005 \| good	18.022 \| good	29.111 \| good	0.363 \| good	2.503 \| good	0.299 \| good
2026-04-30T20:00:00.000Z	33 \| good	4.503 \| good	20.015 \| good	36.077 \| good	0.365 \| good	2.12 \| good	0.299 \| good
2026-04-30T21:00:00.000Z	33 \| good	4.002 \| good	18.007 \| good	36.076 \| good	0.404 \| good	1.91 \| good	0.237 \| good
2026-04-30T22:00:00.000Z	35 \| good	4.301 \| good	19.002 \| good	37.591 \| good	0.363 \| good	1.728 \| good	0.275 \| good
2026-04-30T23:00:00.000Z	36 \| good	4.303 \| good	19.012 \| good	38.52 \| good	0.384 \| good	1.75 \| good	0.275 \| good
2026-05-01T00:00:00.000Z	37 \| good	5.183 \| good	22.432 \| good	40.342 \| good	0.084 \| good	0.425 \| good	0.121 \| good
2026-05-01T01:00:00.000Z	36 \| good	4.303 \| good	19.012 \| good	38.828 \| good	0.072 \| good	0.5 \| good	0.12 \| good
2026-05-01T02:00:00.000Z	37 \| good	4.828 \| good	21 \| good	39.616 \| good	0.071 \| good	0.689 \| good	0.121 \| good
2026-05-01T03:00:00.000Z	36 \| good	5.498 \| good	24.99 \| good	38.555 \| good	0.345 \| good	1.545 \| good	0.256 \| good
2026-05-01T04:00:00.000Z	33 \| good	6.001 \| good	27.003 \| good	34.141 \| good	0.404 \| good	2.058 \| good	0.237 \| good
2026-05-01T05:00:00.000Z	33 \| good	5.707 \| good	26.03 \| good	30.133 \| good	0.401 \| good	3.568 \| good	0.257 \| good
2026-05-01T06:00:00.000Z	33 \| good	5.699 \| good	25.995 \| good	32.086 \| good	0.381 \| good	3.452 \| good	0.237 \| good
2026-05-01T07:00:00.000Z	33 \| good	5.994 \| good	26.973 \| good	30.312 \| good	0.283 \| good	3.578 \| good	0.237 \| good
2026-05-01T08:00:00.000Z	29 \| good	4.801 \| good	22.013 \| good	30.519 \| good	0.32 \| good	3.199 \| good	0.219 \| good
2026-05-01T09:00:00.000Z	28 \| good	4.501 \| good	21.005 \| good	30.171 \| good	0.284 \| good	2.415 \| good	0.238 \| good
2026-05-01T10:00:00.000Z	27 \| good	4.3 \| good	19.008 \| good	28.542 \| good	0.302 \| good	2.725 \| good	0.219 \| good
2026-05-01T11:00:00.000Z	31 \| good	3.797 \| good	16.984 \| good	33.354 \| good	0.341 \| good	2.359 \| good	0.219 \| good
2026-05-01T12:00:00.000Z	32 \| good	3.799 \| good	16.993 \| good	34.53 \| good	0.32 \| good	2.125 \| good	0.238 \| good
2026-05-01T13:00:00.000Z	30 \| good	3.799 \| good	16.994 \| good	31.591 \| good	0.342 \| good	2.175 \| good	0.238 \| good
2026-05-01T14:00:00.000Z	30 \| good	4.5 \| good	20.998 \| good	32.31 \| good	0.323 \| good	4.087 \| good	0.277 \| good
2026-05-01T15:00:00.000Z	31 \| good	4.501 \| good	21.003 \| good	33.68 \| good	0.283 \| good	5.498 \| good	0.295 \| good
2026-05-01T16:00:00.000Z	22 \| good	4.498 \| good	19.991 \| good	20.461 \| good	0.303 \| good	5.84 \| good	0.295 \| good
2026-05-01T17:00:00.000Z	23 \| good	3.099 \| good	13.995 \| good	25.101 \| good	0.304 \| good	2.749 \| good	0.28 \| good
2026-05-01T18:00:00.000Z	22 \| good	3.298 \| good	14.99 \| good	24.455 \| good	0.303 \| good	1.999 \| good	0.299 \| good
2026-05-01T19:00:00.000Z	25 \| good	3.598 \| good	15.991 \| good	27.29 \| good	0.308 \| good	1.837 \| good	0.28 \| good
2026-05-01T20:00:00.000Z	27 \| good	2.798 \| good	12.992 \| good	29.171 \| good	0.328 \| good	1.781 \| good	0.28 \| good
2026-05-01T21:00:00.000Z	26 \| good	3.797 \| good	16.987 \| good	28.275 \| good	0.283 \| good	1.58 \| good	0.28 \| good
2026-05-01T22:00:00.000Z	28 \| good	4.493 \| good	20.966 \| good	29.786 \| good	0.36 \| good	1.723 \| good	0.28 \| good
2026-05-01T23:00:00.000Z	28 \| good	4.794 \| good	21.971 \| good	29.747 \| good	0.284 \| good	1.727 \| good	0.28 \| good
2026-05-02T00:00:00.000Z	29 \| good	4.799 \| good	21.987 \| good	30.564 \| good	0.339 \| good	1.822 \| good	0.299 \| good
2026-05-02T01:00:00.000Z	27 \| good	4.801 \| good	22.003 \| good	28.984 \| good	0.36 \| good	1.599 \| good	0.299 \| good
2026-05-02T02:00:00.000Z	27 \| good	5.197 \| good	23.986 \| good	26.37 \| good	0.357 \| good	1.751 \| good	0.317 \| good
2026-05-02T03:00:00.000Z	27 \| good	5.005 \| good	23.021 \| good	27.931 \| good	0.284 \| good	1.586 \| good	0.275 \| good
2026-05-02T04:00:00.000Z	28 \| good	5.204 \| good	24.017 \| good	29.522 \| good	0.321 \| good	2.176 \| good	0.238 \| good
2026-05-02T05:00:00.000Z	27 \| good	5.496 \| good	24.98 \| good	27.988 \| good	0.321 \| good	2.779 \| good	0.257 \| good
2026-05-02T06:00:00.000Z	27 \| good	5.002 \| good	23.005 \| good	26.89 \| good	0.282 \| good	2.522 \| good	0.257 \| good
2026-05-02T07:00:00.000Z	27 \| good	5.002 \| good	23.005 \| good	26.89 \| good	0.282 \| good	2.522 \| good	0.257 \| good
2026-05-02T08:00:00.000Z	27 \| good	3.925 \| good	17.208 \| good	29.292 \| good	0.055 \| good	0.858 \| good	0.105 \| good
2026-05-02T09:00:00.000Z	27 \| good	4.176 \| good	18.424 \| good	28.932 \| good	0.058 \| good	0.885 \| good	0.106 \| good
2026-05-02T10:00:00.000Z	27 \| good	4.163 \| good	18.255 \| good	28.523 \| good	0.06 \| good	0.855 \| good	0.105 \| good
2026-05-02T11:00:00.000Z	27 \| good	4.652 \| good	20.317 \| good	28.03 \| good	0.062 \| good	0.826 \| good	0.105 \| good
2026-05-02T12:00:00.000Z	27 \| good	4.879 \| good	21.034 \| good	27.522 \| good	0.064 \| good	0.796 \| good	0.104 \| good
2026-05-02T13:00:00.000Z	27 \| good	4.886 \| good	21.034 \| good	27.18 \| good	0.062 \| good	0.795 \| good	0.105 \| good
2026-05-02T14:00:00.000Z	27 \| good	5.371 \| good	23 \| good	27.836 \| good	0.061 \| good	0.795 \| good	0.106 \| good
2026-05-02T15:00:00.000Z	27 \| good	5.306 \| good	23 \| good	28.418 \| good	0.059 \| good	0.795 \| good	0.107 \| good
2026-05-02T16:00:00.000Z	27 \| good	5.489 \| good	23.494 \| good	29.194 \| good	0.076 \| good	0.755 \| good	0.109 \| good
2026-05-02T17:00:00.000Z	33 \| good	6.025 \| good	26.858 \| good	30.631 \| good	0.093 \| good	0.716 \| good	0.112 \| good
2026-05-02T18:00:00.000Z	38 \| good	6.682 \| good	29.755 \| good	32.008 \| good	0.11 \| good	0.677 \| good	0.114 \| good
2026-05-02T19:00:00.000Z	38 \| good	7.187 \| good	31.691 \| good	33.488 \| good	0.11 \| good	0.591 \| good	0.113 \| good
2026-05-02T20:00:00.000Z	38 \| good	6.977 \| good	30.942 \| good	34.871 \| good	0.11 \| good	0.506 \| good	0.113 \| good
2026-05-02T21:00:00.000Z	33 \| good	6.497 \| good	29.033 \| good	35.655 \| good	0.109 \| good	0.421 \| good	0.112 \| good
2026-05-02T22:00:00.000Z	33 \| good	6.376 \| good	28.314 \| good	36.117 \| good	0.107 \| good	0.476 \| good	0.112 \| good
2026-05-02T23:00:00.000Z	33 \| good	6.107 \| good	27.326 \| good	36.101 \| good	0.104 \| good	0.531 \| good	0.112 \| good
2026-05-03T00:00:00.000Z	33 \| good	6.081 \| good	27.293 \| good	35.988 \| good	0.101 \| good	0.586 \| good	0.113 \| good
2026-05-03T01:00:00.000Z	33 \| good	5.947 \| good	26.068 \| good	35.355 \| good	0.106 \| good	1.336 \| good	0.119 \| good
2026-05-03T02:00:00.000Z	31 \| good	4.974 \| good	21.614 \| good	34.395 \| good	0.11 \| good	2.087 \| good	0.125 \| good
2026-05-03T03:00:00.000Z	31 \| good	4.411 \| good	19.54 \| good	32.596 \| good	0.115 \| good	2.837 \| good	0.132 \| good
2026-05-03T04:00:00.000Z	33 \| good	5.589 \| good	24.307 \| good	32.054 \| good	0.135 \| good	3.833 \| good	0.142 \| good
2026-05-03T05:00:00.000Z	33 \| good	5.537 \| good	23.907 \| good	32.014 \| good	0.156 \| good	4.829 \| good	0.153 \| good
2026-05-03T06:00:00.000Z	30 \| good	5.39 \| good	23.285 \| good	32.101 \| good	0.176 \| good	5.825 \| good	0.164 \| good
2026-05-03T07:00:00.000Z	30 \| good	5.321 \| good	22.813 \| good	32.003 \| good	0.142 \| good	5.048 \| good	0.159 \| good
2026-05-03T08:00:00.000Z	33 \| good	5.707 \| good	24.818 \| good	31.921 \| good	0.107 \| good	4.271 \| good	0.154 \| good
2026-05-03T09:00:00.000Z	30 \| good	5.413 \| good	23.155 \| good	32.139 \| good	0.073 \| good	3.493 \| good	0.148 \| good
2026-05-03T10:00:00.000Z	30 \| good	4.854 \| good	21.047 \| good	32.35 \| good	0.073 \| good	3.393 \| good	0.149 \| good
2026-05-03T11:00:00.000Z	30 \| good	4.679 \| good	20.118 \| good	32.432 \| good	0.073 \| good	3.293 \| good	0.149 \| good
2026-05-03T12:00:00.000Z	30 \| good	4.658 \| good	20.118 \| good	32.476 \| good	0.072 \| good	3.193 \| good	0.15 \| good
2026-05-03T13:00:00.000Z	30 \| good	5.235 \| good	22.494 \| good	32.425 \| good	0.07 \| good	2.995 \| good	0.15 \| good
2026-05-03T14:00:00.000Z	33 \| good	5.534 \| good	23.792 \| good	32.552 \| good	0.067 \| good	2.797 \| good	0.149 \| good
2026-05-03T15:00:00.000Z	31 \| good	5.464 \| good	23.545 \| good	32.887 \| good	0.064 \| good	2.599 \| good	0.149 \| good
2026-05-03T16:00:00.000Z	33 \| good	5.797 \| good	25.086 \| good	34.124 \| good	0.079 \| good	2.33 \| good	0.148 \| good
2026-05-03T17:00:00.000Z	38 \| good	6.779 \| good	30.113 \| good	35.828 \| good	0.095 \| good	2.061 \| good	0.146 \| good
2026-05-03T18:00:00.000Z	38 \| good	7.371 \| good	32.498 \| good	37.892 \| good	0.11 \| good	1.792 \| good	0.145 \| good
2026-05-03T19:00:00.000Z	44 \| good	7.719 \| good	33.715 \| good	40.005 \| good	0.108 \| good	1.445 \| good	0.138 \| good
2026-05-03T20:00:00.000Z	38 \| good	7.417 \| good	32.631 \| good	41.221 \| good	0.106 \| good	1.097 \| good	0.13 \| good
2026-05-03T21:00:00.000Z	38 \| good	6.881 \| good	30.458 \| good	41.105 \| good	0.104 \| good	0.75 \| good	0.123 \| good
2026-05-03T22:00:00.000Z	38 \| good	6.877 \| good	30.6 \| good	40.895 \| good	0.092 \| good	1.064 \| good	0.124 \| good
2026-05-03T23:00:00.000Z	38 \| good	7.073 \| good	31.364 \| good	40.658 \| good	0.081 \| good	1.379 \| good	0.125 \| good
2026-05-04T00:00:00.000Z	37 \| good	6.416 \| good	28.634 \| good	39.854 \| good	0.069 \| good	1.693 \| good	0.126 \| good
2026-05-04T01:00:00.000Z	36 \| good	6.483 \| good	28.935 \| good	38.533 \| good	0.073 \| good	2.208 \| good	0.13 \| good
2026-05-04T02:00:00.000Z	34 \| good	5.43 \| good	23.397 \| good	37.088 \| good	0.078 \| good	2.724 \| good	0.134 \| good
2026-05-04T03:00:00.000Z	33 \| good	4.67 \| good	20.256 \| good	35.842 \| good	0.083 \| good	3.24 \| good	0.138 \| good
2026-05-04T04:00:00.000Z	32 \| good	5.368 \| good	23.316 \| good	34.991 \| good	0.113 \| good	3.077 \| good	0.137 \| good
2026-05-04T05:00:00.000Z	32 \| good	5.493 \| good	23.74 \| good	34.806 \| good	0.142 \| good	2.915 \| good	0.135 \| good
2026-05-04T06:00:00.000Z	49 \| good	8.893 \| good	12.675 \| good	32.939 \| good	0.17 \| good	2.768 \| good	0.134 \| good
2026-05-04T07:00:00.000Z	33 \| good	5.653 \| good	24.462 \| good	33.6 \| good	0.172 \| good	2.403 \| good	0.129 \| good

Real-time air quality index in Eureka, California today

Common air pollutants in Eureka, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Eureka, California air quality forecast and history

Empower business decisions with accurate air quality data

Eureka, California air quality map: Real-time AQI near you

Air quality in nearby cities

Arcata, California

McKinleyville, California

Fortuna, California

Redding, California

Shasta Lake, California

Anderson, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Eureka, California updated?

When did Eureka, California experience the worst air quality in the last 24 hours?

When did Eureka, California have its best air quality in the last 24 hours?

What is the real-time air quality index for Eureka, California?

Which pollutant is found most often in Eureka, California?

What can I do if the air quality in Eureka, California is poor?

What are the current PM2.5 levels in Eureka, California?

What are the current PM10 levels at Eureka, California?

What are the current carbon monoxide (CO) levels at Eureka, California?

What are the current sulfur dioxide (SO2) levels at Eureka, California?

What are the current ozone (O3) levels at Eureka, California?

What are the current nitrogen dioxide (NO2) levels at Eureka, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Eureka, California?

What are the current PM₁₀ levels at Eureka, California?

What are the current sulfur dioxide (SO₂) levels at Eureka, California?

What are the current ozone (O₃) levels at Eureka, California?

What are the current nitrogen dioxide (NO₂) levels at Eureka, California?