What are the current PM10 levels at Arcata, California?

The current PM10 levels in Arcata, California are 15.787 μg/m3.

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

The current sulfur dioxide (SO2) levels in Arcata, California are 0.701 ppb.

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

The current ozone (O3) levels at Arcata, California is 23.752 ppm.

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

The current nitrogen dioxide (NO2) levels at Arcata, California is 5.67 ppb.

Real-time air quality index in Arcata, California today

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

The measured PM2.5 levels in Arcata, California at present are 3.55 μg/m3.

Stay updated with real-time air quality in Arcata, 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

Arcata, California

Last updated: ... (Local time)

Common air pollutants in Arcata, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.55 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

15.79 μg/m³

155

255

425

605+

Ozone (O₃)

23.75 ppb

201

201+

Sulfur Dioxide (SO₂)

0.70 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.67 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.37 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Arcata, California

Get Live Pollen Counts

Arcata, California

Scroll To Air Quality Map

Track live Arcata, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-12T23:00:00.000Z	52 \| moderate	9.711 \| good	43.42 \| good	20.197 \| good	0.522 \| good	6.481 \| good	0.369 \| good
2025-12-13T00:00:00.000Z	49 \| good	9.469 \| good	42.04 \| good	21.596 \| good	0.522 \| good	6.608 \| good	0.37 \| good
2025-12-13T01:00:00.000Z	58 \| moderate	12.874 \| fine	58.976 \| fine	22.926 \| good	0.556 \| good	7.787 \| good	0.415 \| good
2025-12-13T02:00:00.000Z	62 \| moderate	15.162 \| fine	68.767 \| fine	20.168 \| good	0.478 \| good	10.719 \| good	0.413 \| good
2025-12-13T03:00:00.000Z	84 \| moderate	26.727 \| fine	116.468 \| fine	17.073 \| good	0.469 \| good	8.212 \| good	0.232 \| good
2025-12-13T04:00:00.000Z	54 \| moderate	11.441 \| good	51.41 \| good	21.071 \| good	0.496 \| good	9.896 \| good	0.451 \| good
2025-12-13T05:00:00.000Z	52 \| moderate	10.082 \| good	44.946 \| good	17.696 \| good	0.476 \| good	9.678 \| good	0.467 \| good
2025-12-13T06:00:00.000Z	54 \| moderate	10.758 \| good	48.715 \| good	17.849 \| good	0.455 \| good	8.39 \| good	0.483 \| good
2025-12-13T07:00:00.000Z	54 \| moderate	11.13 \| good	50.425 \| good	19.718 \| good	0.476 \| good	6.951 \| good	0.483 \| good
2025-12-13T08:00:00.000Z	52 \| moderate	9.964 \| good	44.604 \| good	21.603 \| good	0.436 \| good	9.096 \| good	0.462 \| good
2025-12-13T09:00:00.000Z	44 \| good	8.28 \| good	37.624 \| good	21.173 \| good	0.479 \| good	9.521 \| good	0.359 \| good
2025-12-13T10:00:00.000Z	44 \| good	7.728 \| good	35.475 \| good	20.301 \| good	0.229 \| good	7.515 \| good	0.263 \| good
2025-12-13T11:00:00.000Z	33 \| good	6.36 \| good	28.788 \| good	15.391 \| good	0.229 \| good	7.126 \| good	0.263 \| good
2025-12-13T12:00:00.000Z	27 \| good	4.897 \| good	22.322 \| good	27.653 \| good	0.253 \| good	5.98 \| good	0.536 \| good
2025-12-13T13:00:00.000Z	27 \| good	4.763 \| good	21.727 \| good	23.345 \| good	0.461 \| good	5.532 \| good	0.357 \| good
2025-12-13T14:00:00.000Z	22 \| good	4.388 \| good	19.346 \| good	23 \| good	0.555 \| good	7.545 \| good	0.383 \| good
2025-12-13T15:00:00.000Z	22 \| good	4.118 \| good	18.441 \| good	22.922 \| good	0.535 \| good	7.724 \| good	0.424 \| good
2025-12-13T16:00:00.000Z	19 \| good	3.013 \| good	13.82 \| good	21.136 \| good	0.575 \| good	8.169 \| good	0.443 \| good
2025-12-13T17:00:00.000Z	21 \| good	3.284 \| good	15.029 \| good	23.005 \| good	0.559 \| good	8.609 \| good	0.464 \| good
2025-12-13T18:00:00.000Z	19 \| good	2.918 \| good	13.304 \| good	20.907 \| good	0.539 \| good	4.259 \| good	0.465 \| good
2025-12-13T19:00:00.000Z	22 \| good	4.387 \| good	20.293 \| good	17.387 \| good	0.657 \| good	6.867 \| good	0.427 \| good
2025-12-13T20:00:00.000Z	33 \| good	6.314 \| good	28.171 \| good	18.317 \| good	0.678 \| good	6.744 \| good	0.43 \| good
2025-12-13T21:00:00.000Z	33 \| good	5.623 \| good	25.23 \| good	20.013 \| good	0.737 \| good	6.13 \| good	0.412 \| good
2025-12-13T22:00:00.000Z	27 \| good	4.608 \| good	21.404 \| good	21.633 \| good	0.717 \| good	4.772 \| good	0.416 \| good
2025-12-13T23:00:00.000Z	22 \| good	3.712 \| good	16.459 \| good	22.401 \| good	0.639 \| good	3.894 \| good	0.398 \| good
2025-12-14T00:00:00.000Z	22 \| good	3.761 \| good	16.663 \| good	22.641 \| good	0.619 \| good	4.092 \| good	0.396 \| good
2025-12-14T01:00:00.000Z	22 \| good	4.379 \| good	19.532 \| good	23.653 \| good	0.523 \| good	5.517 \| good	0.418 \| good
2025-12-14T02:00:00.000Z	22 \| good	4.119 \| good	18.091 \| good	19.987 \| good	0.483 \| good	5.78 \| good	0.456 \| good
2025-12-14T03:00:00.000Z	27 \| good	4.524 \| good	19.976 \| good	20.585 \| good	0.486 \| good	8.274 \| good	0.493 \| good
2025-12-14T04:00:00.000Z	27 \| good	5.227 \| good	23.764 \| good	17.407 \| good	0.51 \| good	8.35 \| good	0.533 \| good
2025-12-14T05:00:00.000Z	33 \| good	6.332 \| good	28.612 \| good	14.036 \| good	0.468 \| good	8.305 \| good	0.459 \| good
2025-12-14T06:00:00.000Z	38 \| good	7.025 \| good	31.469 \| good	11.16 \| good	0.505 \| good	8.989 \| good	0.477 \| good
2025-12-14T07:00:00.000Z	38 \| good	7.257 \| good	32.48 \| good	9.476 \| good	0.464 \| good	8.811 \| good	0.477 \| good
2025-12-14T08:00:00.000Z	33 \| good	5.731 \| good	26.106 \| good	11.291 \| good	0.519 \| good	8.131 \| good	0.496 \| good
2025-12-14T09:00:00.000Z	27 \| good	5.086 \| good	22.772 \| good	14.041 \| good	0.5 \| good	7.575 \| good	0.474 \| good
2025-12-14T10:00:00.000Z	22 \| good	3.892 \| good	17.817 \| good	14.757 \| good	0.303 \| good	6.755 \| good	0.368 \| good
2025-12-14T11:00:00.000Z	16 \| good	3.377 \| good	15.417 \| good	16.592 \| good	0.282 \| good	6.313 \| good	0.347 \| good
2025-12-14T12:00:00.000Z	21 \| good	3.204 \| good	14.594 \| good	23.282 \| good	0.366 \| good	5.064 \| good	0.486 \| good
2025-12-14T13:00:00.000Z	16 \| good	3.4 \| good	15.497 \| good	15.858 \| good	0.543 \| good	5.165 \| good	0.438 \| good
2025-12-14T14:00:00.000Z	16 \| good	3.372 \| good	15.424 \| good	16.513 \| good	0.661 \| good	5.06 \| good	0.396 \| good
2025-12-14T15:00:00.000Z	16 \| good	3.409 \| good	15.307 \| good	16.992 \| good	0.538 \| good	6.021 \| good	0.415 \| good
2025-12-14T16:00:00.000Z	16 \| good	2.753 \| good	12.522 \| good	16.628 \| good	0.48 \| good	4.432 \| good	0.414 \| good
2025-12-14T17:00:00.000Z	16 \| good	2.619 \| good	11.979 \| good	14.575 \| good	0.462 \| good	3.712 \| good	0.412 \| good
2025-12-14T18:00:00.000Z	11 \| good	2.121 \| good	9.971 \| good	12.315 \| good	0.487 \| good	2.631 \| good	0.43 \| good
2025-12-14T19:00:00.000Z	16 \| good	2.5 \| good	11.385 \| good	12.737 \| good	0.617 \| good	6.211 \| good	0.449 \| good
2025-12-14T20:00:00.000Z	16 \| good	2.476 \| good	11.218 \| good	17.211 \| good	0.661 \| good	7.625 \| good	0.452 \| good
2025-12-14T21:00:00.000Z	17 \| good	3.273 \| good	14.739 \| good	18.211 \| good	0.759 \| good	5.897 \| good	0.449 \| good
2025-12-14T22:00:00.000Z	22 \| good	3.55 \| good	15.787 \| good	23.752 \| good	0.701 \| good	5.67 \| good	0.374 \| good
2025-12-14T22:00:00.000Z	22 \| good	3.55 \| good	15.787 \| good	23.752 \| good	0.701 \| good	5.67 \| good	0.374 \| good
2025-12-14T23:00:00.000Z	56 \| moderate	11.53 \| good	51.13 \| good	32.323 \| good	0.364 \| good	3.764 \| good	0.186 \| good
2025-12-15T00:00:00.000Z	56 \| moderate	11.632 \| good	51.727 \| good	29.316 \| good	0.356 \| good	4.191 \| good	0.189 \| good
2025-12-15T01:00:00.000Z	58 \| moderate	13.05 \| fine	58.817 \| fine	28.789 \| good	0.365 \| good	5.005 \| good	0.201 \| good
2025-12-15T02:00:00.000Z	62 \| moderate	14.7 \| fine	65.986 \| fine	26.269 \| good	0.373 \| good	5.819 \| good	0.213 \| good
2025-12-15T03:00:00.000Z	66 \| moderate	16.664 \| fine	74.031 \| fine	24.718 \| good	0.382 \| good	6.633 \| good	0.224 \| good
2025-12-15T04:00:00.000Z	58 \| moderate	12.743 \| fine	57.392 \| fine	23.031 \| good	0.379 \| good	6.728 \| good	0.233 \| good
2025-12-15T05:00:00.000Z	54 \| moderate	10.623 \| good	47.13 \| good	23.252 \| good	0.377 \| good	6.823 \| good	0.242 \| good
2025-12-15T06:00:00.000Z	52 \| moderate	10.232 \| good	45.344 \| good	24.526 \| good	0.375 \| good	6.918 \| good	0.251 \| good
2025-12-15T07:00:00.000Z	49 \| good	8.577 \| good	37.96 \| good	24.205 \| good	0.395 \| good	5.843 \| good	0.236 \| good
2025-12-15T08:00:00.000Z	27 \| good	5.147 \| good	22.183 \| good	24.519 \| good	0.416 \| good	4.769 \| good	0.22 \| good
2025-12-15T09:00:00.000Z	27 \| good	4.806 \| good	21.013 \| good	25.431 \| good	0.436 \| good	3.694 \| good	0.205 \| good
2025-12-15T10:00:00.000Z	24 \| good	3.993 \| good	17.346 \| good	25.725 \| good	0.432 \| good	3.22 \| good	0.197 \| good
2025-12-15T11:00:00.000Z	24 \| good	3.705 \| good	16.347 \| good	25.855 \| good	0.427 \| good	2.746 \| good	0.188 \| good
2025-12-15T12:00:00.000Z	24 \| good	3.259 \| good	13.93 \| good	26.298 \| good	0.423 \| good	2.271 \| good	0.18 \| good
2025-12-15T13:00:00.000Z	25 \| good	2.259 \| good	9.07 \| good	26.958 \| good	0.434 \| good	2.273 \| good	0.177 \| good
2025-12-15T14:00:00.000Z	25 \| good	1.657 \| good	6.737 \| good	27.421 \| good	0.446 \| good	2.275 \| good	0.173 \| good
2025-12-15T15:00:00.000Z	25 \| good	2.727 \| good	11.339 \| good	27.243 \| good	0.458 \| good	2.277 \| good	0.17 \| good
2025-12-15T16:00:00.000Z	25 \| good	3.134 \| good	13.371 \| good	27.401 \| good	0.489 \| good	2.387 \| good	0.168 \| good
2025-12-15T17:00:00.000Z	25 \| good	3.02 \| good	12.825 \| good	26.872 \| good	0.521 \| good	2.497 \| good	0.165 \| good
2025-12-15T18:00:00.000Z	26 \| good	2.581 \| good	10.434 \| good	27.651 \| good	0.552 \| good	2.606 \| good	0.163 \| good
2025-12-15T19:00:00.000Z	26 \| good	3.122 \| good	13.333 \| good	28.274 \| good	0.547 \| good	2.322 \| good	0.154 \| good
2025-12-15T20:00:00.000Z	26 \| good	2.933 \| good	12.037 \| good	27.695 \| good	0.542 \| good	2.037 \| good	0.145 \| good
2025-12-15T21:00:00.000Z	25 \| good	3.707 \| good	16.382 \| good	27.375 \| good	0.538 \| good	1.752 \| good	0.136 \| good
2025-12-15T22:00:00.000Z	25 \| good	3.722 \| good	16.272 \| good	26.882 \| good	0.484 \| good	1.883 \| good	0.137 \| good
2025-12-15T23:00:00.000Z	25 \| good	2.769 \| good	11.407 \| good	26.943 \| good	0.43 \| good	2.014 \| good	0.137 \| good
2025-12-16T00:00:00.000Z	26 \| good	3.079 \| good	12.984 \| good	28.291 \| good	0.375 \| good	2.144 \| good	0.137 \| good
2025-12-16T01:00:00.000Z	27 \| good	4.43 \| good	19.11 \| good	29.272 \| good	0.35 \| good	2.514 \| good	0.139 \| good
2025-12-16T02:00:00.000Z	38 \| good	7.224 \| good	32.014 \| good	29.334 \| good	0.324 \| good	2.883 \| good	0.142 \| good
2025-12-16T03:00:00.000Z	49 \| good	8.896 \| good	39.688 \| good	28.885 \| good	0.298 \| good	3.253 \| good	0.145 \| good
2025-12-16T04:00:00.000Z	44 \| good	7.843 \| good	34.379 \| good	28.29 \| good	0.28 \| good	3.191 \| good	0.142 \| good
2025-12-16T05:00:00.000Z	38 \| good	7.276 \| good	32.249 \| good	28.068 \| good	0.262 \| good	3.129 \| good	0.14 \| good
2025-12-16T06:00:00.000Z	27 \| good	5.295 \| good	22.838 \| good	28.109 \| good	0.244 \| good	3.068 \| good	0.137 \| good
2025-12-16T07:00:00.000Z	33 \| good	5.628 \| good	24.398 \| good	29.327 \| good	0.223 \| good	2.826 \| good	0.133 \| good
2025-12-16T08:00:00.000Z	27 \| good	4.343 \| good	18.981 \| good	29.051 \| good	0.201 \| good	2.585 \| good	0.129 \| good
2025-12-16T09:00:00.000Z	29 \| good	3.677 \| good	16 \| good	30.787 \| good	0.18 \| good	2.343 \| good	0.124 \| good
2025-12-16T10:00:00.000Z	29 \| good	3.082 \| good	13.124 \| good	30.892 \| good	0.172 \| good	2.154 \| good	0.121 \| good
2025-12-16T11:00:00.000Z	30 \| good	2.522 \| good	10 \| good	32.371 \| good	0.164 \| good	1.964 \| good	0.118 \| good
2025-12-16T12:00:00.000Z	30 \| good	2.67 \| good	10.925 \| good	32.416 \| good	0.156 \| good	1.775 \| good	0.114 \| good
2025-12-16T13:00:00.000Z	29 \| good	2.192 \| good	9.007 \| good	31.341 \| good	0.155 \| good	2.073 \| good	0.116 \| good
2025-12-16T14:00:00.000Z	28 \| good	1.854 \| good	7.79 \| good	30.082 \| good	0.154 \| good	2.371 \| good	0.119 \| good
2025-12-16T15:00:00.000Z	26 \| good	2.121 \| good	8.568 \| good	27.969 \| good	0.154 \| good	2.668 \| good	0.121 \| good
2025-12-16T16:00:00.000Z	24 \| good	2.361 \| good	9.809 \| good	26.368 \| good	0.146 \| good	2.922 \| good	0.126 \| good
2025-12-16T17:00:00.000Z	24 \| good	2.349 \| good	9.699 \| good	25.611 \| good	0.138 \| good	3.175 \| good	0.131 \| good
2025-12-16T18:00:00.000Z	23 \| good	2.942 \| good	11.957 \| good	25.157 \| good	0.13 \| good	3.429 \| good	0.135 \| good
2025-12-16T19:00:00.000Z	26 \| good	3.471 \| good	15.515 \| good	27.575 \| good	0.123 \| good	2.918 \| good	0.13 \| good
2025-12-16T20:00:00.000Z	27 \| good	3.172 \| good	13.368 \| good	29.165 \| good	0.115 \| good	2.407 \| good	0.125 \| good
2025-12-16T21:00:00.000Z	27 \| good	3.543 \| good	15.629 \| good	28.847 \| good	0.108 \| good	1.896 \| good	0.12 \| good
2025-12-16T22:00:00.000Z	26 \| good	3.354 \| good	14.241 \| good	28.359 \| good	0.105 \| good	1.957 \| good	0.119 \| good

Arcata

Empower business decisions with accurate air quality data

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

0.42ppm

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

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Frequently asked questions

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

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

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

The worst air quality in Arcata, California was recorded at 07:00:00 on 2025-12-14.

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

The best air quality in Arcata, California was recorded at 06:00:00 on 2025-12-14.

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

The real-time air quality index in Arcata, California is 22, currently categorized as Good.

Which pollutant is found most often in Arcata, California?

The most common pollutant in Arcata, California is O3.

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

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

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

The measured PM_2.5 levels in Arcata, California at present are 3.55 μg/m³.

What are the current PM₁₀ levels at Arcata, California?

The current PM₁₀ levels in Arcata, California are 15.787 μg/m³.

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

The current carbon monoxide (CO) level in Arcata, California is 0.374 ppm.

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

The current sulfur dioxide (SO₂) levels in Arcata, California are 0.701 ppb.

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

The current ozone (O₃) levels at Arcata, California is 23.752 ppm.

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

The current nitrogen dioxide (NO₂) levels at Arcata, California is 5.67 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-12T23:00:00.000Z	52 \| moderate	9.711 \| good	43.42 \| good	20.197 \| good	0.522 \| good	6.481 \| good	0.369 \| good
2025-12-13T00:00:00.000Z	49 \| good	9.469 \| good	42.04 \| good	21.596 \| good	0.522 \| good	6.608 \| good	0.37 \| good
2025-12-13T01:00:00.000Z	58 \| moderate	12.874 \| fine	58.976 \| fine	22.926 \| good	0.556 \| good	7.787 \| good	0.415 \| good
2025-12-13T02:00:00.000Z	62 \| moderate	15.162 \| fine	68.767 \| fine	20.168 \| good	0.478 \| good	10.719 \| good	0.413 \| good
2025-12-13T03:00:00.000Z	84 \| moderate	26.727 \| fine	116.468 \| fine	17.073 \| good	0.469 \| good	8.212 \| good	0.232 \| good
2025-12-13T04:00:00.000Z	54 \| moderate	11.441 \| good	51.41 \| good	21.071 \| good	0.496 \| good	9.896 \| good	0.451 \| good
2025-12-13T05:00:00.000Z	52 \| moderate	10.082 \| good	44.946 \| good	17.696 \| good	0.476 \| good	9.678 \| good	0.467 \| good
2025-12-13T06:00:00.000Z	54 \| moderate	10.758 \| good	48.715 \| good	17.849 \| good	0.455 \| good	8.39 \| good	0.483 \| good
2025-12-13T07:00:00.000Z	54 \| moderate	11.13 \| good	50.425 \| good	19.718 \| good	0.476 \| good	6.951 \| good	0.483 \| good
2025-12-13T08:00:00.000Z	52 \| moderate	9.964 \| good	44.604 \| good	21.603 \| good	0.436 \| good	9.096 \| good	0.462 \| good
2025-12-13T09:00:00.000Z	44 \| good	8.28 \| good	37.624 \| good	21.173 \| good	0.479 \| good	9.521 \| good	0.359 \| good
2025-12-13T10:00:00.000Z	44 \| good	7.728 \| good	35.475 \| good	20.301 \| good	0.229 \| good	7.515 \| good	0.263 \| good
2025-12-13T11:00:00.000Z	33 \| good	6.36 \| good	28.788 \| good	15.391 \| good	0.229 \| good	7.126 \| good	0.263 \| good
2025-12-13T12:00:00.000Z	27 \| good	4.897 \| good	22.322 \| good	27.653 \| good	0.253 \| good	5.98 \| good	0.536 \| good
2025-12-13T13:00:00.000Z	27 \| good	4.763 \| good	21.727 \| good	23.345 \| good	0.461 \| good	5.532 \| good	0.357 \| good
2025-12-13T14:00:00.000Z	22 \| good	4.388 \| good	19.346 \| good	23 \| good	0.555 \| good	7.545 \| good	0.383 \| good
2025-12-13T15:00:00.000Z	22 \| good	4.118 \| good	18.441 \| good	22.922 \| good	0.535 \| good	7.724 \| good	0.424 \| good
2025-12-13T16:00:00.000Z	19 \| good	3.013 \| good	13.82 \| good	21.136 \| good	0.575 \| good	8.169 \| good	0.443 \| good
2025-12-13T17:00:00.000Z	21 \| good	3.284 \| good	15.029 \| good	23.005 \| good	0.559 \| good	8.609 \| good	0.464 \| good
2025-12-13T18:00:00.000Z	19 \| good	2.918 \| good	13.304 \| good	20.907 \| good	0.539 \| good	4.259 \| good	0.465 \| good
2025-12-13T19:00:00.000Z	22 \| good	4.387 \| good	20.293 \| good	17.387 \| good	0.657 \| good	6.867 \| good	0.427 \| good
2025-12-13T20:00:00.000Z	33 \| good	6.314 \| good	28.171 \| good	18.317 \| good	0.678 \| good	6.744 \| good	0.43 \| good
2025-12-13T21:00:00.000Z	33 \| good	5.623 \| good	25.23 \| good	20.013 \| good	0.737 \| good	6.13 \| good	0.412 \| good
2025-12-13T22:00:00.000Z	27 \| good	4.608 \| good	21.404 \| good	21.633 \| good	0.717 \| good	4.772 \| good	0.416 \| good
2025-12-13T23:00:00.000Z	22 \| good	3.712 \| good	16.459 \| good	22.401 \| good	0.639 \| good	3.894 \| good	0.398 \| good
2025-12-14T00:00:00.000Z	22 \| good	3.761 \| good	16.663 \| good	22.641 \| good	0.619 \| good	4.092 \| good	0.396 \| good
2025-12-14T01:00:00.000Z	22 \| good	4.379 \| good	19.532 \| good	23.653 \| good	0.523 \| good	5.517 \| good	0.418 \| good
2025-12-14T02:00:00.000Z	22 \| good	4.119 \| good	18.091 \| good	19.987 \| good	0.483 \| good	5.78 \| good	0.456 \| good
2025-12-14T03:00:00.000Z	27 \| good	4.524 \| good	19.976 \| good	20.585 \| good	0.486 \| good	8.274 \| good	0.493 \| good
2025-12-14T04:00:00.000Z	27 \| good	5.227 \| good	23.764 \| good	17.407 \| good	0.51 \| good	8.35 \| good	0.533 \| good
2025-12-14T05:00:00.000Z	33 \| good	6.332 \| good	28.612 \| good	14.036 \| good	0.468 \| good	8.305 \| good	0.459 \| good
2025-12-14T06:00:00.000Z	38 \| good	7.025 \| good	31.469 \| good	11.16 \| good	0.505 \| good	8.989 \| good	0.477 \| good
2025-12-14T07:00:00.000Z	38 \| good	7.257 \| good	32.48 \| good	9.476 \| good	0.464 \| good	8.811 \| good	0.477 \| good
2025-12-14T08:00:00.000Z	33 \| good	5.731 \| good	26.106 \| good	11.291 \| good	0.519 \| good	8.131 \| good	0.496 \| good
2025-12-14T09:00:00.000Z	27 \| good	5.086 \| good	22.772 \| good	14.041 \| good	0.5 \| good	7.575 \| good	0.474 \| good
2025-12-14T10:00:00.000Z	22 \| good	3.892 \| good	17.817 \| good	14.757 \| good	0.303 \| good	6.755 \| good	0.368 \| good
2025-12-14T11:00:00.000Z	16 \| good	3.377 \| good	15.417 \| good	16.592 \| good	0.282 \| good	6.313 \| good	0.347 \| good
2025-12-14T12:00:00.000Z	21 \| good	3.204 \| good	14.594 \| good	23.282 \| good	0.366 \| good	5.064 \| good	0.486 \| good
2025-12-14T13:00:00.000Z	16 \| good	3.4 \| good	15.497 \| good	15.858 \| good	0.543 \| good	5.165 \| good	0.438 \| good
2025-12-14T14:00:00.000Z	16 \| good	3.372 \| good	15.424 \| good	16.513 \| good	0.661 \| good	5.06 \| good	0.396 \| good
2025-12-14T15:00:00.000Z	16 \| good	3.409 \| good	15.307 \| good	16.992 \| good	0.538 \| good	6.021 \| good	0.415 \| good
2025-12-14T16:00:00.000Z	16 \| good	2.753 \| good	12.522 \| good	16.628 \| good	0.48 \| good	4.432 \| good	0.414 \| good
2025-12-14T17:00:00.000Z	16 \| good	2.619 \| good	11.979 \| good	14.575 \| good	0.462 \| good	3.712 \| good	0.412 \| good
2025-12-14T18:00:00.000Z	11 \| good	2.121 \| good	9.971 \| good	12.315 \| good	0.487 \| good	2.631 \| good	0.43 \| good
2025-12-14T19:00:00.000Z	16 \| good	2.5 \| good	11.385 \| good	12.737 \| good	0.617 \| good	6.211 \| good	0.449 \| good
2025-12-14T20:00:00.000Z	16 \| good	2.476 \| good	11.218 \| good	17.211 \| good	0.661 \| good	7.625 \| good	0.452 \| good
2025-12-14T21:00:00.000Z	17 \| good	3.273 \| good	14.739 \| good	18.211 \| good	0.759 \| good	5.897 \| good	0.449 \| good
2025-12-14T22:00:00.000Z	22 \| good	3.55 \| good	15.787 \| good	23.752 \| good	0.701 \| good	5.67 \| good	0.374 \| good
2025-12-14T22:00:00.000Z	22 \| good	3.55 \| good	15.787 \| good	23.752 \| good	0.701 \| good	5.67 \| good	0.374 \| good
2025-12-14T23:00:00.000Z	56 \| moderate	11.53 \| good	51.13 \| good	32.323 \| good	0.364 \| good	3.764 \| good	0.186 \| good
2025-12-15T00:00:00.000Z	56 \| moderate	11.632 \| good	51.727 \| good	29.316 \| good	0.356 \| good	4.191 \| good	0.189 \| good
2025-12-15T01:00:00.000Z	58 \| moderate	13.05 \| fine	58.817 \| fine	28.789 \| good	0.365 \| good	5.005 \| good	0.201 \| good
2025-12-15T02:00:00.000Z	62 \| moderate	14.7 \| fine	65.986 \| fine	26.269 \| good	0.373 \| good	5.819 \| good	0.213 \| good
2025-12-15T03:00:00.000Z	66 \| moderate	16.664 \| fine	74.031 \| fine	24.718 \| good	0.382 \| good	6.633 \| good	0.224 \| good
2025-12-15T04:00:00.000Z	58 \| moderate	12.743 \| fine	57.392 \| fine	23.031 \| good	0.379 \| good	6.728 \| good	0.233 \| good
2025-12-15T05:00:00.000Z	54 \| moderate	10.623 \| good	47.13 \| good	23.252 \| good	0.377 \| good	6.823 \| good	0.242 \| good
2025-12-15T06:00:00.000Z	52 \| moderate	10.232 \| good	45.344 \| good	24.526 \| good	0.375 \| good	6.918 \| good	0.251 \| good
2025-12-15T07:00:00.000Z	49 \| good	8.577 \| good	37.96 \| good	24.205 \| good	0.395 \| good	5.843 \| good	0.236 \| good
2025-12-15T08:00:00.000Z	27 \| good	5.147 \| good	22.183 \| good	24.519 \| good	0.416 \| good	4.769 \| good	0.22 \| good
2025-12-15T09:00:00.000Z	27 \| good	4.806 \| good	21.013 \| good	25.431 \| good	0.436 \| good	3.694 \| good	0.205 \| good
2025-12-15T10:00:00.000Z	24 \| good	3.993 \| good	17.346 \| good	25.725 \| good	0.432 \| good	3.22 \| good	0.197 \| good
2025-12-15T11:00:00.000Z	24 \| good	3.705 \| good	16.347 \| good	25.855 \| good	0.427 \| good	2.746 \| good	0.188 \| good
2025-12-15T12:00:00.000Z	24 \| good	3.259 \| good	13.93 \| good	26.298 \| good	0.423 \| good	2.271 \| good	0.18 \| good
2025-12-15T13:00:00.000Z	25 \| good	2.259 \| good	9.07 \| good	26.958 \| good	0.434 \| good	2.273 \| good	0.177 \| good
2025-12-15T14:00:00.000Z	25 \| good	1.657 \| good	6.737 \| good	27.421 \| good	0.446 \| good	2.275 \| good	0.173 \| good
2025-12-15T15:00:00.000Z	25 \| good	2.727 \| good	11.339 \| good	27.243 \| good	0.458 \| good	2.277 \| good	0.17 \| good
2025-12-15T16:00:00.000Z	25 \| good	3.134 \| good	13.371 \| good	27.401 \| good	0.489 \| good	2.387 \| good	0.168 \| good
2025-12-15T17:00:00.000Z	25 \| good	3.02 \| good	12.825 \| good	26.872 \| good	0.521 \| good	2.497 \| good	0.165 \| good
2025-12-15T18:00:00.000Z	26 \| good	2.581 \| good	10.434 \| good	27.651 \| good	0.552 \| good	2.606 \| good	0.163 \| good
2025-12-15T19:00:00.000Z	26 \| good	3.122 \| good	13.333 \| good	28.274 \| good	0.547 \| good	2.322 \| good	0.154 \| good
2025-12-15T20:00:00.000Z	26 \| good	2.933 \| good	12.037 \| good	27.695 \| good	0.542 \| good	2.037 \| good	0.145 \| good
2025-12-15T21:00:00.000Z	25 \| good	3.707 \| good	16.382 \| good	27.375 \| good	0.538 \| good	1.752 \| good	0.136 \| good
2025-12-15T22:00:00.000Z	25 \| good	3.722 \| good	16.272 \| good	26.882 \| good	0.484 \| good	1.883 \| good	0.137 \| good
2025-12-15T23:00:00.000Z	25 \| good	2.769 \| good	11.407 \| good	26.943 \| good	0.43 \| good	2.014 \| good	0.137 \| good
2025-12-16T00:00:00.000Z	26 \| good	3.079 \| good	12.984 \| good	28.291 \| good	0.375 \| good	2.144 \| good	0.137 \| good
2025-12-16T01:00:00.000Z	27 \| good	4.43 \| good	19.11 \| good	29.272 \| good	0.35 \| good	2.514 \| good	0.139 \| good
2025-12-16T02:00:00.000Z	38 \| good	7.224 \| good	32.014 \| good	29.334 \| good	0.324 \| good	2.883 \| good	0.142 \| good
2025-12-16T03:00:00.000Z	49 \| good	8.896 \| good	39.688 \| good	28.885 \| good	0.298 \| good	3.253 \| good	0.145 \| good
2025-12-16T04:00:00.000Z	44 \| good	7.843 \| good	34.379 \| good	28.29 \| good	0.28 \| good	3.191 \| good	0.142 \| good
2025-12-16T05:00:00.000Z	38 \| good	7.276 \| good	32.249 \| good	28.068 \| good	0.262 \| good	3.129 \| good	0.14 \| good
2025-12-16T06:00:00.000Z	27 \| good	5.295 \| good	22.838 \| good	28.109 \| good	0.244 \| good	3.068 \| good	0.137 \| good
2025-12-16T07:00:00.000Z	33 \| good	5.628 \| good	24.398 \| good	29.327 \| good	0.223 \| good	2.826 \| good	0.133 \| good
2025-12-16T08:00:00.000Z	27 \| good	4.343 \| good	18.981 \| good	29.051 \| good	0.201 \| good	2.585 \| good	0.129 \| good
2025-12-16T09:00:00.000Z	29 \| good	3.677 \| good	16 \| good	30.787 \| good	0.18 \| good	2.343 \| good	0.124 \| good
2025-12-16T10:00:00.000Z	29 \| good	3.082 \| good	13.124 \| good	30.892 \| good	0.172 \| good	2.154 \| good	0.121 \| good
2025-12-16T11:00:00.000Z	30 \| good	2.522 \| good	10 \| good	32.371 \| good	0.164 \| good	1.964 \| good	0.118 \| good
2025-12-16T12:00:00.000Z	30 \| good	2.67 \| good	10.925 \| good	32.416 \| good	0.156 \| good	1.775 \| good	0.114 \| good
2025-12-16T13:00:00.000Z	29 \| good	2.192 \| good	9.007 \| good	31.341 \| good	0.155 \| good	2.073 \| good	0.116 \| good
2025-12-16T14:00:00.000Z	28 \| good	1.854 \| good	7.79 \| good	30.082 \| good	0.154 \| good	2.371 \| good	0.119 \| good
2025-12-16T15:00:00.000Z	26 \| good	2.121 \| good	8.568 \| good	27.969 \| good	0.154 \| good	2.668 \| good	0.121 \| good
2025-12-16T16:00:00.000Z	24 \| good	2.361 \| good	9.809 \| good	26.368 \| good	0.146 \| good	2.922 \| good	0.126 \| good
2025-12-16T17:00:00.000Z	24 \| good	2.349 \| good	9.699 \| good	25.611 \| good	0.138 \| good	3.175 \| good	0.131 \| good
2025-12-16T18:00:00.000Z	23 \| good	2.942 \| good	11.957 \| good	25.157 \| good	0.13 \| good	3.429 \| good	0.135 \| good
2025-12-16T19:00:00.000Z	26 \| good	3.471 \| good	15.515 \| good	27.575 \| good	0.123 \| good	2.918 \| good	0.13 \| good
2025-12-16T20:00:00.000Z	27 \| good	3.172 \| good	13.368 \| good	29.165 \| good	0.115 \| good	2.407 \| good	0.125 \| good
2025-12-16T21:00:00.000Z	27 \| good	3.543 \| good	15.629 \| good	28.847 \| good	0.108 \| good	1.896 \| good	0.12 \| good
2025-12-16T22:00:00.000Z	26 \| good	3.354 \| good	14.241 \| good	28.359 \| good	0.105 \| good	1.957 \| good	0.119 \| good

Real-time air quality index in Arcata, California today

Common air pollutants in Arcata, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Arcata, California air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

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Redding, 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 Arcata, California updated?

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

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

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

Which pollutant is found most often in Arcata, California?

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

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

What are the current PM10 levels at Arcata, California?

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

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

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

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

What are the current PM₁₀ levels at Arcata, California?

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

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

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