What is the current level of PM10 in San Marino, California?

San Marino, California currently has a PM10 concentration of 46.166 μg/m3.

What is the current level of sulfur dioxide (SO2) in San Marino, California?

The current sulfur dioxide (SO2) concentration in San Marino, California is 0.288 ppb.

What is the current level of ozone (O3) in San Marino, California?

San Marino, California currently has an ozone (O3) concentration of 9.702 ppm.

What is the current level of nitrogen dioxide (NO2) in San Marino, California?

The current level of nitrogen dioxide (NO2) in San Marino, California is 17.291 ppb.

Current air quality index in San Marino, California today

Q: What is the PM2.5 concentration in San Marino, California right now?

San Marino, California currently has a PM2.5 concentration of 12.201 μg/m3.

Stay updated with real-time air quality in San Marino, 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)

Moderate

San Marino, California

Last updated: ... (Local time)

Common air pollutants in San Marino, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

12.20 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

46.17 μg/m³

155

255

425

605+

Ozone (O₃)

9.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.29 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.60 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

San Marino, California

Get Live Pollen Counts

San Marino, California

Scroll To Air Quality Map

Track live San Marino, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	44 \| good	8.358 \| good	34.199 \| good	4.512 \| good	0.432 \| good	29.153 \| good	0.577 \| good
2026-01-21T12:00:00.000Z	49 \| good	9.45 \| good	33.408 \| good	3.061 \| good	0.367 \| good	28.733 \| good	0.472 \| good
2026-01-21T13:00:00.000Z	49 \| good	8.976 \| good	38.785 \| good	3.061 \| good	0.32 \| good	28.733 \| good	0.473 \| good
2026-01-21T14:00:00.000Z	52 \| moderate	9.577 \| good	34.743 \| good	4.49 \| good	0.669 \| good	23.366 \| good	0.442 \| good
2026-01-21T15:00:00.000Z	67 \| moderate	17.914 \| fine	52.933 \| good	7.359 \| good	0.443 \| good	21.867 \| good	0.519 \| good
2026-01-21T16:00:00.000Z	64 \| moderate	16.012 \| fine	43.018 \| good	9.787 \| good	0.499 \| good	23.039 \| good	0.633 \| good
2026-01-21T17:00:00.000Z	60 \| moderate	14.482 \| fine	46.622 \| good	9.687 \| good	0.412 \| good	24.943 \| good	0.675 \| good
2026-01-21T18:00:00.000Z	69 \| moderate	18.904 \| fine	50.204 \| good	10.001 \| good	0.407 \| good	24.912 \| good	0.718 \| good
2026-01-21T19:00:00.000Z	71 \| moderate	19.947 \| fine	66.107 \| fine	12.874 \| good	0.488 \| good	22.694 \| good	0.721 \| good
2026-01-21T20:00:00.000Z	67 \| moderate	18.094 \| fine	57.067 \| fine	17.507 \| good	0.522 \| good	19.307 \| good	0.663 \| good
2026-01-21T21:00:00.000Z	79 \| moderate	23.6 \| fine	76.776 \| fine	20.227 \| good	0.435 \| good	23.115 \| good	0.634 \| good
2026-01-21T22:00:00.000Z	90 \| moderate	30.016 \| fine	128.883 \| fine	21.812 \| good	0.582 \| good	26.072 \| good	0.669 \| good
2026-01-21T23:00:00.000Z	88 \| moderate	28.778 \| fine	106.382 \| fine	22.748 \| good	0.475 \| good	26.987 \| good	0.502 \| good
2026-01-22T00:00:00.000Z	82 \| moderate	26.336 \| fine	95.243 \| fine	20.159 \| good	0.437 \| good	27.876 \| good	0.502 \| good
2026-01-22T01:00:00.000Z	82 \| moderate	26.218 \| fine	101.024 \| fine	16.392 \| good	0.332 \| good	24.451 \| good	0.558 \| good
2026-01-22T02:00:00.000Z	82 \| moderate	26.084 \| fine	102.785 \| fine	10.937 \| good	0.274 \| good	26.122 \| good	0.597 \| good
2026-01-22T03:00:00.000Z	81 \| moderate	25.084 \| fine	59.941 \| fine	8.885 \| good	0.419 \| good	27.629 \| good	0.66 \| good
2026-01-22T04:00:00.000Z	92 \| moderate	31.146 \| fine	70.565 \| fine	5.921 \| good	0.474 \| good	32.105 \| good	0.643 \| good
2026-01-22T05:00:00.000Z	86 \| moderate	27.523 \| fine	54.095 \| good	3.221 \| good	0.749 \| good	35.831 \| good	0.683 \| good
2026-01-22T06:00:00.000Z	96 \| moderate	33.326 \| fine	99.331 \| fine	2.229 \| good	0.579 \| good	36.665 \| good	0.744 \| good
2026-01-22T07:00:00.000Z	86 \| moderate	27.603 \| fine	68.904 \| fine	2.229 \| good	0.611 \| good	34.337 \| good	0.868 \| good
2026-01-22T08:00:00.000Z	82 \| moderate	26.438 \| fine	73.073 \| fine	6.197 \| good	0.635 \| good	32.931 \| good	0.771 \| good
2026-01-22T09:00:00.000Z	86 \| moderate	28.081 \| fine	79.86 \| fine	6.446 \| good	0.611 \| good	32.058 \| good	0.686 \| good
2026-01-22T10:00:00.000Z	84 \| moderate	27.157 \| fine	71.032 \| fine	7.528 \| good	0.589 \| good	29.094 \| good	0.619 \| good
2026-01-22T11:00:00.000Z	71 \| moderate	20.257 \| fine	54.531 \| good	12.499 \| good	0.318 \| good	29.055 \| good	0.447 \| good
2026-01-22T12:00:00.000Z	77 \| moderate	23.492 \| fine	70.618 \| fine	8.629 \| good	0.652 \| good	24.551 \| good	0.471 \| good
2026-01-22T13:00:00.000Z	77 \| moderate	23.006 \| fine	49.504 \| good	5.298 \| good	0.651 \| good	24.551 \| good	0.471 \| good
2026-01-22T14:00:00.000Z	90 \| moderate	30.231 \| fine	96.527 \| fine	9.585 \| good	0.464 \| good	24.838 \| good	0.557 \| good
2026-01-22T15:00:00.000Z	94 \| moderate	32.182 \| fine	112.992 \| fine	5.519 \| good	0.553 \| good	23.273 \| good	0.59 \| good
2026-01-22T16:00:00.000Z	86 \| moderate	28.398 \| fine	97.776 \| fine	7.697 \| good	0.645 \| good	22.062 \| good	0.679 \| good
2026-01-22T17:00:00.000Z	90 \| moderate	30.258 \| fine	89.65 \| fine	8.72 \| good	0.702 \| good	23.029 \| good	0.694 \| good
2026-01-22T18:00:00.000Z	77 \| moderate	23.231 \| fine	68.151 \| fine	11.402 \| good	0.475 \| good	26.682 \| good	0.708 \| good
2026-01-22T19:00:00.000Z	84 \| moderate	26.802 \| fine	107.297 \| fine	11.782 \| good	0.435 \| good	27.172 \| good	0.714 \| good
2026-01-22T20:00:00.000Z	49 \| good	9.071 \| good	32.972 \| good	13.766 \| good	0.356 \| good	24.809 \| good	0.514 \| good
2026-01-22T21:00:00.000Z	79 \| moderate	23.844 \| fine	46.902 \| good	16.416 \| good	0.44 \| good	19.64 \| good	0.449 \| good
2026-01-22T22:00:00.000Z	75 \| moderate	21.719 \| fine	44.571 \| good	19.532 \| good	0.613 \| good	16.261 \| good	0.427 \| good
2026-01-22T23:00:00.000Z	75 \| moderate	21.83 \| fine	31.323 \| good	22.156 \| good	0.497 \| good	14.992 \| good	0.395 \| good
2026-01-23T00:00:00.000Z	79 \| moderate	24.344 \| fine	29.438 \| good	22.833 \| good	0.306 \| good	13.953 \| good	0.407 \| good
2026-01-23T01:00:00.000Z	90 \| moderate	30.339 \| fine	48.826 \| good	26.009 \| good	0.34 \| good	13.904 \| good	0.377 \| good
2026-01-23T02:00:00.000Z	64 \| moderate	16.038 \| fine	29.445 \| good	25.065 \| good	0.353 \| good	15.272 \| good	0.428 \| good
2026-01-23T03:00:00.000Z	60 \| moderate	14.181 \| fine	40.682 \| good	24.416 \| good	0.216 \| good	15.439 \| good	0.434 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	13.087 \| fine	39.593 \| good	21.834 \| good	0.331 \| good	17.74 \| good	0.371 \| good
2026-01-23T05:00:00.000Z	62 \| moderate	14.711 \| fine	51.135 \| good	20.112 \| good	0.551 \| good	15.504 \| good	0.457 \| good
2026-01-23T06:00:00.000Z	64 \| moderate	15.819 \| fine	44.454 \| good	16.714 \| good	0.268 \| good	19.22 \| good	0.458 \| good
2026-01-23T07:00:00.000Z	67 \| moderate	17.768 \| fine	44.416 \| good	16.714 \| good	0.288 \| good	19.22 \| good	0.457 \| good
2026-01-23T08:00:00.000Z	69 \| moderate	19.401 \| fine	67.164 \| fine	13.276 \| good	0.61 \| good	20.291 \| good	0.553 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.335 \| fine	45.266 \| good	9.826 \| good	0.294 \| good	17.786 \| good	0.593 \| good
2026-01-23T10:00:00.000Z	52 \| moderate	9.708 \| good	49.507 \| good	8.182 \| good	0.482 \| good	17.477 \| good	0.591 \| good
2026-01-23T10:00:00.000Z	56 \| moderate	12.201 \| fine	46.166 \| good	9.702 \| good	0.288 \| good	17.291 \| good	0.598 \| good
2026-01-23T11:00:00.000Z	67 \| moderate	17.757 \| fine	78.171 \| fine	4.397 \| good	3.823 \| good	28.099 \| good	0.488 \| good
2026-01-23T12:00:00.000Z	67 \| moderate	17.535 \| fine	77.799 \| fine	4.746 \| good	3.363 \| good	26.714 \| good	0.462 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	14.814 \| fine	66.462 \| fine	3.275 \| good	3.245 \| good	26.42 \| good	0.47 \| good
2026-01-23T14:00:00.000Z	62 \| moderate	14.512 \| fine	64.533 \| fine	3.518 \| good	3.128 \| good	26.126 \| good	0.478 \| good
2026-01-23T15:00:00.000Z	64 \| moderate	16.272 \| fine	72.354 \| fine	4.141 \| good	3.01 \| good	25.832 \| good	0.486 \| good
2026-01-23T16:00:00.000Z	69 \| moderate	19.216 \| fine	84.603 \| fine	6.729 \| good	4.379 \| good	25.07 \| good	0.431 \| good
2026-01-23T17:00:00.000Z	79 \| moderate	24.015 \| fine	104.577 \| fine	12.504 \| good	5.748 \| good	24.307 \| good	0.376 \| good
2026-01-23T18:00:00.000Z	79 \| moderate	24.368 \| fine	106.069 \| fine	19.274 \| good	7.118 \| good	23.545 \| good	0.321 \| good
2026-01-23T19:00:00.000Z	62 \| moderate	15.384 \| fine	68.133 \| fine	28.472 \| good	7.569 \| good	22.942 \| good	0.295 \| good
2026-01-23T20:00:00.000Z	33 \| good	6.337 \| good	28.021 \| good	34.151 \| good	8.019 \| good	22.339 \| good	0.27 \| good
2026-01-23T21:00:00.000Z	32 \| good	5.305 \| good	22.99 \| good	34.578 \| good	8.47 \| good	21.736 \| good	0.244 \| good
2026-01-23T22:00:00.000Z	38 \| good	7.303 \| good	31.971 \| good	34.931 \| good	8.437 \| good	22.248 \| good	0.238 \| good
2026-01-23T23:00:00.000Z	35 \| good	5.375 \| good	23.231 \| good	38.468 \| good	8.405 \| good	22.76 \| good	0.232 \| good
2026-01-24T00:00:00.000Z	35 \| good	3.802 \| good	16.427 \| good	38.343 \| good	8.373 \| good	23.272 \| good	0.226 \| good
2026-01-24T01:00:00.000Z	36 \| good	5.617 \| good	24.259 \| good	39.463 \| good	8.358 \| good	28.413 \| good	0.266 \| good
2026-01-24T02:00:00.000Z	52 \| moderate	10.272 \| good	45.548 \| good	34.504 \| good	8.343 \| good	33.553 \| good	0.307 \| good
2026-01-24T03:00:00.000Z	62 \| moderate	15.268 \| fine	68.32 \| fine	28.629 \| good	8.328 \| good	38.694 \| good	0.348 \| good
2026-01-24T04:00:00.000Z	69 \| moderate	18.933 \| fine	83.609 \| fine	20.93 \| good	8.644 \| good	38.729 \| good	0.368 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	20.126 \| fine	88.22 \| fine	13.298 \| good	8.96 \| good	38.764 \| good	0.387 \| good
2026-01-24T06:00:00.000Z	79 \| moderate	23.602 \| fine	103.557 \| fine	11.617 \| good	9.276 \| good	38.8 \| good	0.407 \| good
2026-01-24T07:00:00.000Z	73 \| moderate	21.126 \| fine	93.034 \| fine	10.752 \| good	9.131 \| good	36.351 \| good	0.367 \| good
2026-01-24T08:00:00.000Z	71 \| moderate	20.49 \| fine	90.82 \| fine	8.786 \| good	8.987 \| good	33.902 \| good	0.326 \| good
2026-01-24T09:00:00.000Z	75 \| moderate	21.901 \| fine	95.656 \| fine	5.882 \| good	8.842 \| good	31.453 \| good	0.285 \| good
2026-01-24T10:00:00.000Z	77 \| moderate	22.65 \| fine	99.123 \| fine	6.117 \| good	8.932 \| good	30.75 \| good	0.279 \| good
2026-01-24T11:00:00.000Z	73 \| moderate	20.685 \| fine	91.043 \| fine	6.111 \| good	9.022 \| good	30.048 \| good	0.273 \| good
2026-01-24T12:00:00.000Z	69 \| moderate	19.315 \| fine	85.693 \| fine	9.111 \| good	9.113 \| good	29.345 \| good	0.266 \| good
2026-01-24T13:00:00.000Z	62 \| moderate	14.7 \| fine	65.713 \| fine	13.157 \| good	9.185 \| good	28.838 \| good	0.276 \| good
2026-01-24T14:00:00.000Z	62 \| moderate	14.507 \| fine	65.093 \| fine	13.106 \| good	9.257 \| good	28.332 \| good	0.287 \| good
2026-01-24T15:00:00.000Z	60 \| moderate	14.21 \| fine	63.605 \| fine	14.571 \| good	9.33 \| good	27.825 \| good	0.297 \| good
2026-01-24T16:00:00.000Z	56 \| moderate	11.756 \| good	52.386 \| good	21.332 \| good	8.857 \| good	23.817 \| good	0.274 \| good
2026-01-24T17:00:00.000Z	58 \| moderate	12.626 \| fine	56.371 \| fine	27.426 \| good	8.384 \| good	19.808 \| good	0.252 \| good
2026-01-24T18:00:00.000Z	52 \| moderate	9.523 \| good	42.411 \| good	32.101 \| good	7.911 \| good	15.8 \| good	0.229 \| good
2026-01-24T19:00:00.000Z	49 \| good	8.894 \| good	39.725 \| good	35.672 \| good	6.947 \| good	13.567 \| good	0.211 \| good
2026-01-24T20:00:00.000Z	35 \| good	6.123 \| good	27.003 \| good	37.924 \| good	5.983 \| good	11.334 \| good	0.192 \| good
2026-01-24T21:00:00.000Z	38 \| good	6.809 \| good	29.855 \| good	38.256 \| good	5.019 \| good	9.102 \| good	0.174 \| good
2026-01-24T22:00:00.000Z	44 \| good	8.381 \| good	36.71 \| good	39.641 \| good	4.673 \| good	9.018 \| good	0.171 \| good
2026-01-24T23:00:00.000Z	54 \| moderate	10.79 \| good	47.969 \| good	41.914 \| good	4.327 \| good	8.934 \| good	0.169 \| good
2026-01-25T00:00:00.000Z	44 \| good	7.521 \| good	32.861 \| good	45.065 \| good	3.982 \| good	8.85 \| good	0.166 \| good
2026-01-25T01:00:00.000Z	44 \| good	8.38 \| good	37.535 \| good	43.744 \| good	3.792 \| good	14.322 \| good	0.191 \| good
2026-01-25T02:00:00.000Z	49 \| good	9.488 \| good	42.172 \| good	36.991 \| good	3.603 \| good	19.793 \| good	0.216 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.349 \| good	41.282 \| good	36.546 \| good	3.413 \| good	25.265 \| good	0.241 \| good
2026-01-25T04:00:00.000Z	54 \| moderate	10.903 \| good	48.36 \| good	32.007 \| good	3.56 \| good	24.859 \| good	0.258 \| good
2026-01-25T05:00:00.000Z	54 \| moderate	11.366 \| good	50.021 \| good	25.152 \| good	3.707 \| good	24.454 \| good	0.275 \| good
2026-01-25T06:00:00.000Z	79 \| moderate	23.841 \| fine	24.362 \| good	14.65 \| good	3.924 \| good	24.184 \| good	0.294 \| good
2026-01-25T07:00:00.000Z	58 \| moderate	12.829 \| fine	57.719 \| fine	8.384 \| good	3.451 \| good	22.9 \| good	0.274 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	10.9 \| good	48.036 \| good	8.307 \| good	3.048 \| good	21.75 \| good	0.256 \| good
2026-01-25T09:00:00.000Z	56 \| moderate	11.852 \| good	52.276 \| good	7.196 \| good	2.645 \| good	20.601 \| good	0.238 \| good
2026-01-25T10:00:00.000Z	56 \| moderate	11.574 \| good	51.189 \| good	6.147 \| good	2.314 \| good	20.041 \| good	0.219 \| good

San Marino

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near San Marino, California

0.60ppm

How accurate is California, USA air quality data?

The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

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 does the air quality data for San Marino, California get updated?

Air quality updates for San Marino, California are available every hour.

What time in the past 24 hours saw the poorest air quality in San Marino, California?

San Marino, California experienced its worst air quality at 03:00:00, 2026-01-22.

When was air quality in San Marino, California the best over the past 24 hours?

The best air quality in San Marino, California was observed at 08:00:00 on 2026-01-22.

What is the air quality in San Marino, California right now?

The air quality in San Marino, California right now is Moderate, with an AQI of 56.

What pollutant is most frequently found in San Marino, California?

In San Marino, California, PM2.5 is the most frequently found pollutant.

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

When air quality in San Marino, California is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in San Marino, California right now?

San Marino, California currently has a PM_2.5 concentration of 12.201 μg/m³.

What is the current level of PM₁₀ in San Marino, California?

San Marino, California currently has a PM₁₀ concentration of 46.166 μg/m³.

What is the current level of carbon monoxide (CO) in San Marino, California?

The current carbon monoxide (CO) level in San Marino, California is 0.598 ppm.

What is the current level of sulfur dioxide (SO₂) in San Marino, California?

The current sulfur dioxide (SO₂) concentration in San Marino, California is 0.288 ppb.

What is the current level of ozone (O₃) in San Marino, California?

San Marino, California currently has an ozone (O₃) concentration of 9.702 ppm.

What is the current level of nitrogen dioxide (NO₂) in San Marino, California?

The current level of nitrogen dioxide (NO₂) in San Marino, California is 17.291 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	44 \| good	8.358 \| good	34.199 \| good	4.512 \| good	0.432 \| good	29.153 \| good	0.577 \| good
2026-01-21T12:00:00.000Z	49 \| good	9.45 \| good	33.408 \| good	3.061 \| good	0.367 \| good	28.733 \| good	0.472 \| good
2026-01-21T13:00:00.000Z	49 \| good	8.976 \| good	38.785 \| good	3.061 \| good	0.32 \| good	28.733 \| good	0.473 \| good
2026-01-21T14:00:00.000Z	52 \| moderate	9.577 \| good	34.743 \| good	4.49 \| good	0.669 \| good	23.366 \| good	0.442 \| good
2026-01-21T15:00:00.000Z	67 \| moderate	17.914 \| fine	52.933 \| good	7.359 \| good	0.443 \| good	21.867 \| good	0.519 \| good
2026-01-21T16:00:00.000Z	64 \| moderate	16.012 \| fine	43.018 \| good	9.787 \| good	0.499 \| good	23.039 \| good	0.633 \| good
2026-01-21T17:00:00.000Z	60 \| moderate	14.482 \| fine	46.622 \| good	9.687 \| good	0.412 \| good	24.943 \| good	0.675 \| good
2026-01-21T18:00:00.000Z	69 \| moderate	18.904 \| fine	50.204 \| good	10.001 \| good	0.407 \| good	24.912 \| good	0.718 \| good
2026-01-21T19:00:00.000Z	71 \| moderate	19.947 \| fine	66.107 \| fine	12.874 \| good	0.488 \| good	22.694 \| good	0.721 \| good
2026-01-21T20:00:00.000Z	67 \| moderate	18.094 \| fine	57.067 \| fine	17.507 \| good	0.522 \| good	19.307 \| good	0.663 \| good
2026-01-21T21:00:00.000Z	79 \| moderate	23.6 \| fine	76.776 \| fine	20.227 \| good	0.435 \| good	23.115 \| good	0.634 \| good
2026-01-21T22:00:00.000Z	90 \| moderate	30.016 \| fine	128.883 \| fine	21.812 \| good	0.582 \| good	26.072 \| good	0.669 \| good
2026-01-21T23:00:00.000Z	88 \| moderate	28.778 \| fine	106.382 \| fine	22.748 \| good	0.475 \| good	26.987 \| good	0.502 \| good
2026-01-22T00:00:00.000Z	82 \| moderate	26.336 \| fine	95.243 \| fine	20.159 \| good	0.437 \| good	27.876 \| good	0.502 \| good
2026-01-22T01:00:00.000Z	82 \| moderate	26.218 \| fine	101.024 \| fine	16.392 \| good	0.332 \| good	24.451 \| good	0.558 \| good
2026-01-22T02:00:00.000Z	82 \| moderate	26.084 \| fine	102.785 \| fine	10.937 \| good	0.274 \| good	26.122 \| good	0.597 \| good
2026-01-22T03:00:00.000Z	81 \| moderate	25.084 \| fine	59.941 \| fine	8.885 \| good	0.419 \| good	27.629 \| good	0.66 \| good
2026-01-22T04:00:00.000Z	92 \| moderate	31.146 \| fine	70.565 \| fine	5.921 \| good	0.474 \| good	32.105 \| good	0.643 \| good
2026-01-22T05:00:00.000Z	86 \| moderate	27.523 \| fine	54.095 \| good	3.221 \| good	0.749 \| good	35.831 \| good	0.683 \| good
2026-01-22T06:00:00.000Z	96 \| moderate	33.326 \| fine	99.331 \| fine	2.229 \| good	0.579 \| good	36.665 \| good	0.744 \| good
2026-01-22T07:00:00.000Z	86 \| moderate	27.603 \| fine	68.904 \| fine	2.229 \| good	0.611 \| good	34.337 \| good	0.868 \| good
2026-01-22T08:00:00.000Z	82 \| moderate	26.438 \| fine	73.073 \| fine	6.197 \| good	0.635 \| good	32.931 \| good	0.771 \| good
2026-01-22T09:00:00.000Z	86 \| moderate	28.081 \| fine	79.86 \| fine	6.446 \| good	0.611 \| good	32.058 \| good	0.686 \| good
2026-01-22T10:00:00.000Z	84 \| moderate	27.157 \| fine	71.032 \| fine	7.528 \| good	0.589 \| good	29.094 \| good	0.619 \| good
2026-01-22T11:00:00.000Z	71 \| moderate	20.257 \| fine	54.531 \| good	12.499 \| good	0.318 \| good	29.055 \| good	0.447 \| good
2026-01-22T12:00:00.000Z	77 \| moderate	23.492 \| fine	70.618 \| fine	8.629 \| good	0.652 \| good	24.551 \| good	0.471 \| good
2026-01-22T13:00:00.000Z	77 \| moderate	23.006 \| fine	49.504 \| good	5.298 \| good	0.651 \| good	24.551 \| good	0.471 \| good
2026-01-22T14:00:00.000Z	90 \| moderate	30.231 \| fine	96.527 \| fine	9.585 \| good	0.464 \| good	24.838 \| good	0.557 \| good
2026-01-22T15:00:00.000Z	94 \| moderate	32.182 \| fine	112.992 \| fine	5.519 \| good	0.553 \| good	23.273 \| good	0.59 \| good
2026-01-22T16:00:00.000Z	86 \| moderate	28.398 \| fine	97.776 \| fine	7.697 \| good	0.645 \| good	22.062 \| good	0.679 \| good
2026-01-22T17:00:00.000Z	90 \| moderate	30.258 \| fine	89.65 \| fine	8.72 \| good	0.702 \| good	23.029 \| good	0.694 \| good
2026-01-22T18:00:00.000Z	77 \| moderate	23.231 \| fine	68.151 \| fine	11.402 \| good	0.475 \| good	26.682 \| good	0.708 \| good
2026-01-22T19:00:00.000Z	84 \| moderate	26.802 \| fine	107.297 \| fine	11.782 \| good	0.435 \| good	27.172 \| good	0.714 \| good
2026-01-22T20:00:00.000Z	49 \| good	9.071 \| good	32.972 \| good	13.766 \| good	0.356 \| good	24.809 \| good	0.514 \| good
2026-01-22T21:00:00.000Z	79 \| moderate	23.844 \| fine	46.902 \| good	16.416 \| good	0.44 \| good	19.64 \| good	0.449 \| good
2026-01-22T22:00:00.000Z	75 \| moderate	21.719 \| fine	44.571 \| good	19.532 \| good	0.613 \| good	16.261 \| good	0.427 \| good
2026-01-22T23:00:00.000Z	75 \| moderate	21.83 \| fine	31.323 \| good	22.156 \| good	0.497 \| good	14.992 \| good	0.395 \| good
2026-01-23T00:00:00.000Z	79 \| moderate	24.344 \| fine	29.438 \| good	22.833 \| good	0.306 \| good	13.953 \| good	0.407 \| good
2026-01-23T01:00:00.000Z	90 \| moderate	30.339 \| fine	48.826 \| good	26.009 \| good	0.34 \| good	13.904 \| good	0.377 \| good
2026-01-23T02:00:00.000Z	64 \| moderate	16.038 \| fine	29.445 \| good	25.065 \| good	0.353 \| good	15.272 \| good	0.428 \| good
2026-01-23T03:00:00.000Z	60 \| moderate	14.181 \| fine	40.682 \| good	24.416 \| good	0.216 \| good	15.439 \| good	0.434 \| good
2026-01-23T04:00:00.000Z	58 \| moderate	13.087 \| fine	39.593 \| good	21.834 \| good	0.331 \| good	17.74 \| good	0.371 \| good
2026-01-23T05:00:00.000Z	62 \| moderate	14.711 \| fine	51.135 \| good	20.112 \| good	0.551 \| good	15.504 \| good	0.457 \| good
2026-01-23T06:00:00.000Z	64 \| moderate	15.819 \| fine	44.454 \| good	16.714 \| good	0.268 \| good	19.22 \| good	0.458 \| good
2026-01-23T07:00:00.000Z	67 \| moderate	17.768 \| fine	44.416 \| good	16.714 \| good	0.288 \| good	19.22 \| good	0.457 \| good
2026-01-23T08:00:00.000Z	69 \| moderate	19.401 \| fine	67.164 \| fine	13.276 \| good	0.61 \| good	20.291 \| good	0.553 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.335 \| fine	45.266 \| good	9.826 \| good	0.294 \| good	17.786 \| good	0.593 \| good
2026-01-23T10:00:00.000Z	52 \| moderate	9.708 \| good	49.507 \| good	8.182 \| good	0.482 \| good	17.477 \| good	0.591 \| good
2026-01-23T10:00:00.000Z	56 \| moderate	12.201 \| fine	46.166 \| good	9.702 \| good	0.288 \| good	17.291 \| good	0.598 \| good
2026-01-23T11:00:00.000Z	67 \| moderate	17.757 \| fine	78.171 \| fine	4.397 \| good	3.823 \| good	28.099 \| good	0.488 \| good
2026-01-23T12:00:00.000Z	67 \| moderate	17.535 \| fine	77.799 \| fine	4.746 \| good	3.363 \| good	26.714 \| good	0.462 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	14.814 \| fine	66.462 \| fine	3.275 \| good	3.245 \| good	26.42 \| good	0.47 \| good
2026-01-23T14:00:00.000Z	62 \| moderate	14.512 \| fine	64.533 \| fine	3.518 \| good	3.128 \| good	26.126 \| good	0.478 \| good
2026-01-23T15:00:00.000Z	64 \| moderate	16.272 \| fine	72.354 \| fine	4.141 \| good	3.01 \| good	25.832 \| good	0.486 \| good
2026-01-23T16:00:00.000Z	69 \| moderate	19.216 \| fine	84.603 \| fine	6.729 \| good	4.379 \| good	25.07 \| good	0.431 \| good
2026-01-23T17:00:00.000Z	79 \| moderate	24.015 \| fine	104.577 \| fine	12.504 \| good	5.748 \| good	24.307 \| good	0.376 \| good
2026-01-23T18:00:00.000Z	79 \| moderate	24.368 \| fine	106.069 \| fine	19.274 \| good	7.118 \| good	23.545 \| good	0.321 \| good
2026-01-23T19:00:00.000Z	62 \| moderate	15.384 \| fine	68.133 \| fine	28.472 \| good	7.569 \| good	22.942 \| good	0.295 \| good
2026-01-23T20:00:00.000Z	33 \| good	6.337 \| good	28.021 \| good	34.151 \| good	8.019 \| good	22.339 \| good	0.27 \| good
2026-01-23T21:00:00.000Z	32 \| good	5.305 \| good	22.99 \| good	34.578 \| good	8.47 \| good	21.736 \| good	0.244 \| good
2026-01-23T22:00:00.000Z	38 \| good	7.303 \| good	31.971 \| good	34.931 \| good	8.437 \| good	22.248 \| good	0.238 \| good
2026-01-23T23:00:00.000Z	35 \| good	5.375 \| good	23.231 \| good	38.468 \| good	8.405 \| good	22.76 \| good	0.232 \| good
2026-01-24T00:00:00.000Z	35 \| good	3.802 \| good	16.427 \| good	38.343 \| good	8.373 \| good	23.272 \| good	0.226 \| good
2026-01-24T01:00:00.000Z	36 \| good	5.617 \| good	24.259 \| good	39.463 \| good	8.358 \| good	28.413 \| good	0.266 \| good
2026-01-24T02:00:00.000Z	52 \| moderate	10.272 \| good	45.548 \| good	34.504 \| good	8.343 \| good	33.553 \| good	0.307 \| good
2026-01-24T03:00:00.000Z	62 \| moderate	15.268 \| fine	68.32 \| fine	28.629 \| good	8.328 \| good	38.694 \| good	0.348 \| good
2026-01-24T04:00:00.000Z	69 \| moderate	18.933 \| fine	83.609 \| fine	20.93 \| good	8.644 \| good	38.729 \| good	0.368 \| good
2026-01-24T05:00:00.000Z	71 \| moderate	20.126 \| fine	88.22 \| fine	13.298 \| good	8.96 \| good	38.764 \| good	0.387 \| good
2026-01-24T06:00:00.000Z	79 \| moderate	23.602 \| fine	103.557 \| fine	11.617 \| good	9.276 \| good	38.8 \| good	0.407 \| good
2026-01-24T07:00:00.000Z	73 \| moderate	21.126 \| fine	93.034 \| fine	10.752 \| good	9.131 \| good	36.351 \| good	0.367 \| good
2026-01-24T08:00:00.000Z	71 \| moderate	20.49 \| fine	90.82 \| fine	8.786 \| good	8.987 \| good	33.902 \| good	0.326 \| good
2026-01-24T09:00:00.000Z	75 \| moderate	21.901 \| fine	95.656 \| fine	5.882 \| good	8.842 \| good	31.453 \| good	0.285 \| good
2026-01-24T10:00:00.000Z	77 \| moderate	22.65 \| fine	99.123 \| fine	6.117 \| good	8.932 \| good	30.75 \| good	0.279 \| good
2026-01-24T11:00:00.000Z	73 \| moderate	20.685 \| fine	91.043 \| fine	6.111 \| good	9.022 \| good	30.048 \| good	0.273 \| good
2026-01-24T12:00:00.000Z	69 \| moderate	19.315 \| fine	85.693 \| fine	9.111 \| good	9.113 \| good	29.345 \| good	0.266 \| good
2026-01-24T13:00:00.000Z	62 \| moderate	14.7 \| fine	65.713 \| fine	13.157 \| good	9.185 \| good	28.838 \| good	0.276 \| good
2026-01-24T14:00:00.000Z	62 \| moderate	14.507 \| fine	65.093 \| fine	13.106 \| good	9.257 \| good	28.332 \| good	0.287 \| good
2026-01-24T15:00:00.000Z	60 \| moderate	14.21 \| fine	63.605 \| fine	14.571 \| good	9.33 \| good	27.825 \| good	0.297 \| good
2026-01-24T16:00:00.000Z	56 \| moderate	11.756 \| good	52.386 \| good	21.332 \| good	8.857 \| good	23.817 \| good	0.274 \| good
2026-01-24T17:00:00.000Z	58 \| moderate	12.626 \| fine	56.371 \| fine	27.426 \| good	8.384 \| good	19.808 \| good	0.252 \| good
2026-01-24T18:00:00.000Z	52 \| moderate	9.523 \| good	42.411 \| good	32.101 \| good	7.911 \| good	15.8 \| good	0.229 \| good
2026-01-24T19:00:00.000Z	49 \| good	8.894 \| good	39.725 \| good	35.672 \| good	6.947 \| good	13.567 \| good	0.211 \| good
2026-01-24T20:00:00.000Z	35 \| good	6.123 \| good	27.003 \| good	37.924 \| good	5.983 \| good	11.334 \| good	0.192 \| good
2026-01-24T21:00:00.000Z	38 \| good	6.809 \| good	29.855 \| good	38.256 \| good	5.019 \| good	9.102 \| good	0.174 \| good
2026-01-24T22:00:00.000Z	44 \| good	8.381 \| good	36.71 \| good	39.641 \| good	4.673 \| good	9.018 \| good	0.171 \| good
2026-01-24T23:00:00.000Z	54 \| moderate	10.79 \| good	47.969 \| good	41.914 \| good	4.327 \| good	8.934 \| good	0.169 \| good
2026-01-25T00:00:00.000Z	44 \| good	7.521 \| good	32.861 \| good	45.065 \| good	3.982 \| good	8.85 \| good	0.166 \| good
2026-01-25T01:00:00.000Z	44 \| good	8.38 \| good	37.535 \| good	43.744 \| good	3.792 \| good	14.322 \| good	0.191 \| good
2026-01-25T02:00:00.000Z	49 \| good	9.488 \| good	42.172 \| good	36.991 \| good	3.603 \| good	19.793 \| good	0.216 \| good
2026-01-25T03:00:00.000Z	49 \| good	9.349 \| good	41.282 \| good	36.546 \| good	3.413 \| good	25.265 \| good	0.241 \| good
2026-01-25T04:00:00.000Z	54 \| moderate	10.903 \| good	48.36 \| good	32.007 \| good	3.56 \| good	24.859 \| good	0.258 \| good
2026-01-25T05:00:00.000Z	54 \| moderate	11.366 \| good	50.021 \| good	25.152 \| good	3.707 \| good	24.454 \| good	0.275 \| good
2026-01-25T06:00:00.000Z	79 \| moderate	23.841 \| fine	24.362 \| good	14.65 \| good	3.924 \| good	24.184 \| good	0.294 \| good
2026-01-25T07:00:00.000Z	58 \| moderate	12.829 \| fine	57.719 \| fine	8.384 \| good	3.451 \| good	22.9 \| good	0.274 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	10.9 \| good	48.036 \| good	8.307 \| good	3.048 \| good	21.75 \| good	0.256 \| good
2026-01-25T09:00:00.000Z	56 \| moderate	11.852 \| good	52.276 \| good	7.196 \| good	2.645 \| good	20.601 \| good	0.238 \| good
2026-01-25T10:00:00.000Z	56 \| moderate	11.574 \| good	51.189 \| good	6.147 \| good	2.314 \| good	20.041 \| good	0.219 \| good

Current air quality index in San Marino, California today

Common air pollutants in San Marino, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Real-time air quality map: Monitor AQI near San Marino, California

Air quality in nearby cities

East San Gabriel, California

San Gabriel, California

Alhambra, California

South Pasadena, California

Temple City, California

Pasadena, California

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Frequently asked questions

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What is the PM2.5 concentration in San Marino, California right now?

What is the current level of PM10 in San Marino, California?

What is the current level of carbon monoxide (CO) in San Marino, California?

What is the current level of sulfur dioxide (SO2) in San Marino, California?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in San Marino, California right now?

What is the current level of PM₁₀ in San Marino, California?

What is the current level of sulfur dioxide (SO₂) in San Marino, California?

What is the current level of ozone (O₃) in San Marino, California?

What is the current level of nitrogen dioxide (NO₂) in San Marino, California?