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

San Ramon, California currently has a PM10 concentration of 18.858 μg/m3.

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

The current sulfur dioxide (SO2) concentration in San Ramon, California is 0.546 ppb.

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

San Ramon, California currently has an ozone (O3) concentration of 43.775 ppm.

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

The current level of nitrogen dioxide (NO2) in San Ramon, California is 3.097 ppb.

Current air quality index in San Ramon, California today

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

San Ramon, California currently has a PM2.5 concentration of 5.053 μg/m3.

Stay updated with real-time air quality in San Ramon, 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

San Ramon, California

Last updated: ... (Local time)

Common air pollutants in San Ramon, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.40 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.76 μg/m³

155

255

425

605+

Ozone (O₃)

38.16 ppb

201

201+

Sulfur Dioxide (SO₂)

0.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.44 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

San Ramon, California

Get Live Pollen Counts

San Ramon, California

Scroll To Air Quality Map

Track live San Ramon, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-11T06:00:00.000Z	49 \| good	8.717 \| good	45.022 \| good	41.832 \| good	0.65 \| good	7.645 \| good	0.341 \| good
2026-06-11T07:00:00.000Z	54 \| moderate	11.349 \| good	40.759 \| good	40.695 \| good	0.614 \| good	6.574 \| good	0.358 \| good
2026-06-11T08:00:00.000Z	58 \| moderate	12.747 \| fine	57.169 \| fine	36.732 \| good	0.785 \| good	6.536 \| good	0.399 \| good
2026-06-11T09:00:00.000Z	37 \| good	5.661 \| good	13.993 \| good	39.581 \| good	0.624 \| good	8.589 \| good	0.399 \| good
2026-06-11T10:00:00.000Z	33 \| good	6.037 \| good	21.723 \| good	33.2 \| good	0.839 \| good	6.455 \| good	0.382 \| good
2026-06-11T11:00:00.000Z	31 \| good	4.316 \| good	14.983 \| good	33.372 \| good	0.5 \| good	7.402 \| good	0.367 \| good
2026-06-11T12:00:00.000Z	33 \| good	2.639 \| good	15.845 \| good	36.427 \| good	0.479 \| good	5.799 \| good	0.367 \| good
2026-06-11T13:00:00.000Z	38 \| good	2.545 \| good	18.897 \| good	40.922 \| good	0.611 \| good	5.105 \| good	0.388 \| good
2026-06-11T14:00:00.000Z	31 \| good	4.047 \| good	16.943 \| good	34.048 \| good	0.451 \| good	8.2 \| good	0.408 \| good
2026-06-11T15:00:00.000Z	22 \| good	3.754 \| good	13.522 \| good	23.096 \| good	0.572 \| good	10.523 \| good	0.54 \| good
2026-06-11T16:00:00.000Z	26 \| good	3.94 \| good	21.874 \| good	28.303 \| good	0.502 \| good	12.599 \| good	0.501 \| good
2026-06-11T17:00:00.000Z	33 \| good	6.255 \| good	31.989 \| good	35.683 \| good	0.624 \| good	9.269 \| good	0.534 \| good
2026-06-11T18:00:00.000Z	32 \| good	4.246 \| good	23.51 \| good	34.612 \| good	0.623 \| good	6.855 \| good	0.358 \| good
2026-06-11T19:00:00.000Z	34 \| good	3.425 \| good	14.013 \| good	37.495 \| good	0.637 \| good	4.704 \| good	0.267 \| good
2026-06-11T20:00:00.000Z	46 \| good	3.132 \| good	24.04 \| good	50.286 \| good	0.589 \| good	4.493 \| good	0.233 \| good
2026-06-11T21:00:00.000Z	45 \| good	3.183 \| good	13.49 \| good	49.227 \| good	0.592 \| good	3.806 \| good	0.2 \| good
2026-06-11T22:00:00.000Z	49 \| good	4.732 \| good	23.262 \| good	53.114 \| good	0.538 \| good	2.201 \| good	0.241 \| good
2026-06-11T23:00:00.000Z	67 \| moderate	3.402 \| good	18.38 \| good	59.56 \| fine	0.532 \| good	3.526 \| good	0.241 \| good
2026-06-12T00:00:00.000Z	67 \| moderate	7.146 \| good	27.305 \| good	59.711 \| fine	0.659 \| good	4.703 \| good	0.282 \| good
2026-06-12T01:00:00.000Z	80 \| moderate	9.633 \| good	50.04 \| good	63.883 \| fine	0.773 \| good	3.992 \| good	0.241 \| good
2026-06-12T02:00:00.000Z	58 \| moderate	11.991 \| good	41.558 \| good	57.206 \| fine	0.67 \| good	3.449 \| good	0.258 \| good
2026-06-12T03:00:00.000Z	49 \| good	9.228 \| good	35.121 \| good	53.025 \| good	0.484 \| good	2.92 \| good	0.258 \| good
2026-06-12T04:00:00.000Z	56 \| moderate	12.262 \| fine	43.297 \| good	53.129 \| good	0.603 \| good	2.835 \| good	0.258 \| good
2026-06-12T05:00:00.000Z	67 \| moderate	15.881 \| fine	63.387 \| fine	60.088 \| fine	0.782 \| good	4.945 \| good	0.299 \| good
2026-06-12T06:00:00.000Z	44 \| good	8.152 \| good	25.207 \| good	41.903 \| good	0.723 \| good	3.927 \| good	0.299 \| good
2026-06-12T07:00:00.000Z	52 \| moderate	9.943 \| good	47.116 \| good	41.835 \| good	0.72 \| good	3.871 \| good	0.241 \| good
2026-06-12T08:00:00.000Z	40 \| good	6.945 \| good	42.902 \| good	38.327 \| good	0.538 \| good	3.894 \| good	0.241 \| good
2026-06-12T09:00:00.000Z	31 \| good	3.798 \| good	17.264 \| good	34.154 \| good	0.639 \| good	3.22 \| good	0.241 \| good
2026-06-12T10:00:00.000Z	38 \| good	6.679 \| good	25.245 \| good	30.912 \| good	0.567 \| good	2.136 \| good	0.224 \| good
2026-06-12T11:00:00.000Z	31 \| good	4.221 \| good	13.122 \| good	32.511 \| good	0.605 \| good	4.227 \| good	0.224 \| good
2026-06-12T12:00:00.000Z	27 \| good	4.717 \| good	24.109 \| good	25.872 \| good	0.675 \| good	4.137 \| good	0.241 \| good
2026-06-12T13:00:00.000Z	27 \| good	3.771 \| good	12.44 \| good	29.364 \| good	0.618 \| good	4.733 \| good	0.33 \| good
2026-06-12T14:00:00.000Z	33 \| good	6.223 \| good	19.226 \| good	29.319 \| good	0.561 \| good	5.133 \| good	0.258 \| good
2026-06-12T15:00:00.000Z	38 \| good	7.069 \| good	21.368 \| good	25.125 \| good	0.673 \| good	6.553 \| good	0.317 \| good
2026-06-12T16:00:00.000Z	27 \| good	5.236 \| good	22.097 \| good	28.757 \| good	0.734 \| good	6.458 \| good	0.358 \| good
2026-06-12T17:00:00.000Z	38 \| good	7.107 \| good	27.659 \| good	33.733 \| good	0.715 \| good	6.556 \| good	0.341 \| good
2026-06-12T18:00:00.000Z	46 \| good	8.489 \| good	49.781 \| good	34.051 \| good	0.658 \| good	6.473 \| good	0.341 \| good
2026-06-12T19:00:00.000Z	49 \| good	8.781 \| good	36.448 \| good	43.324 \| good	0.66 \| good	5.943 \| good	0.341 \| good
2026-06-12T20:00:00.000Z	49 \| good	9.148 \| good	38.246 \| good	52.83 \| good	1.227 \| good	7.663 \| good	0.324 \| good
2026-06-12T21:00:00.000Z	71 \| moderate	6.423 \| good	23.423 \| good	60.737 \| fine	1.126 \| good	6.985 \| good	0.324 \| good
2026-06-12T22:00:00.000Z	77 \| moderate	5.339 \| good	27.663 \| good	62.918 \| fine	0.55 \| good	5.071 \| good	0.308 \| good
2026-06-12T23:00:00.000Z	64 \| moderate	5.729 \| good	18.926 \| good	59.171 \| fine	0.53 \| good	4.367 \| good	0.258 \| good
2026-06-13T00:00:00.000Z	49 \| good	8.553 \| good	38.939 \| good	49.002 \| good	0.548 \| good	3.233 \| good	0.258 \| good
2026-06-13T01:00:00.000Z	48 \| good	5.715 \| good	30.272 \| good	51.718 \| good	0.534 \| good	2.871 \| good	0.258 \| good
2026-06-13T02:00:00.000Z	45 \| good	4.831 \| good	25.632 \| good	48.776 \| good	0.519 \| good	3.117 \| good	0.282 \| good
2026-06-13T03:00:00.000Z	42 \| good	4.836 \| good	21.658 \| good	45.455 \| good	0.572 \| good	3.557 \| good	0.299 \| good
2026-06-13T04:00:00.000Z	41 \| good	4.822 \| good	20.501 \| good	44.323 \| good	0.677 \| good	3.623 \| good	0.275 \| good
2026-06-13T05:00:00.000Z	35 \| good	4.399 \| good	14.761 \| good	38.162 \| good	0.639 \| good	3.442 \| good	0.319 \| good
2026-06-13T05:00:00.000Z	54 \| moderate	10.893 \| good	48.28 \| good	24.207 \| good	0.738 \| good	5.225 \| good	0.12 \| good
2026-06-13T06:00:00.000Z	54 \| moderate	10.735 \| good	47.631 \| good	23.323 \| good	0.753 \| good	5.607 \| good	0.121 \| good
2026-06-13T07:00:00.000Z	52 \| moderate	9.996 \| good	44.153 \| good	23.38 \| good	0.758 \| good	5.823 \| good	0.122 \| good
2026-06-13T08:00:00.000Z	54 \| moderate	10.515 \| good	46.397 \| good	23.285 \| good	0.749 \| good	5.862 \| good	0.123 \| good
2026-06-13T09:00:00.000Z	49 \| good	9 \| good	39.892 \| good	23.114 \| good	0.746 \| good	5.445 \| good	0.121 \| good
2026-06-13T10:00:00.000Z	52 \| moderate	10.484 \| good	46.31 \| good	23.216 \| good	0.733 \| good	5.259 \| good	0.12 \| good
2026-06-13T11:00:00.000Z	49 \| good	8.901 \| good	38.972 \| good	22.863 \| good	0.735 \| good	4.851 \| good	0.119 \| good
2026-06-13T12:00:00.000Z	54 \| moderate	10.595 \| good	46.978 \| good	26.654 \| good	0.723 \| good	4.788 \| good	0.118 \| good
2026-06-13T13:00:00.000Z	49 \| good	9.278 \| good	41.009 \| good	24.904 \| good	0.711 \| good	4.67 \| good	0.118 \| good
2026-06-13T14:00:00.000Z	52 \| moderate	9.644 \| good	42.833 \| good	29.245 \| good	0.711 \| good	4.214 \| good	0.117 \| good
2026-06-13T15:00:00.000Z	52 \| moderate	10.305 \| good	45.682 \| good	32.599 \| good	0.735 \| good	3.734 \| good	0.115 \| good
2026-06-13T16:00:00.000Z	54 \| moderate	11.052 \| good	48.711 \| good	36.707 \| good	0.746 \| good	3.163 \| good	0.113 \| good
2026-06-13T17:00:00.000Z	54 \| moderate	11.389 \| good	50.384 \| good	42.498 \| good	0.765 \| good	2.715 \| good	0.112 \| good
2026-06-13T18:00:00.000Z	52 \| moderate	10.418 \| good	46.336 \| good	49.23 \| good	0.777 \| good	2.202 \| good	0.111 \| good
2026-06-13T19:00:00.000Z	52 \| moderate	10.335 \| good	45.752 \| good	54.684 \| good	0.795 \| good	1.74 \| good	0.11 \| good
2026-06-13T20:00:00.000Z	64 \| moderate	10.396 \| good	46.232 \| good	58.795 \| fine	0.795 \| good	1.337 \| good	0.108 \| good
2026-06-13T21:00:00.000Z	67 \| moderate	10.627 \| good	47.163 \| good	60.16 \| fine	0.798 \| good	1.186 \| good	0.107 \| good
2026-06-13T22:00:00.000Z	67 \| moderate	11.498 \| good	50.695 \| good	59.533 \| fine	0.805 \| good	1.169 \| good	0.104 \| good
2026-06-13T23:00:00.000Z	54 \| moderate	9.835 \| good	43.855 \| good	56.356 \| fine	0.794 \| good	1.219 \| good	0.102 \| good
2026-06-14T00:00:00.000Z	49 \| good	8.955 \| good	39.955 \| good	48.461 \| good	0.77 \| good	1.394 \| good	0.1 \| good
2026-06-14T01:00:00.000Z	49 \| good	9.128 \| good	40.428 \| good	41.801 \| good	0.737 \| good	1.688 \| good	0.097 \| good
2026-06-14T02:00:00.000Z	49 \| good	9.441 \| good	42.225 \| good	36.884 \| good	0.708 \| good	2.285 \| good	0.096 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.268 \| good	41.46 \| good	31.797 \| good	0.693 \| good	3.093 \| good	0.096 \| good
2026-06-14T04:00:00.000Z	49 \| good	8.634 \| good	37.897 \| good	27.891 \| good	0.694 \| good	3.765 \| good	0.097 \| good
2026-06-14T05:00:00.000Z	49 \| good	9.398 \| good	42.097 \| good	26.081 \| good	0.708 \| good	4.122 \| good	0.098 \| good
2026-06-14T06:00:00.000Z	49 \| good	9.03 \| good	39.819 \| good	25.177 \| good	0.721 \| good	4.534 \| good	0.099 \| good
2026-06-14T07:00:00.000Z	49 \| good	8.619 \| good	38.068 \| good	24.576 \| good	0.732 \| good	4.526 \| good	0.099 \| good
2026-06-14T08:00:00.000Z	44 \| good	8.466 \| good	37.236 \| good	24.699 \| good	0.735 \| good	4.241 \| good	0.098 \| good
2026-06-14T09:00:00.000Z	44 \| good	7.601 \| good	33.472 \| good	24.307 \| good	0.73 \| good	4.122 \| good	0.098 \| good
2026-06-14T10:00:00.000Z	49 \| good	9.273 \| good	41.397 \| good	23.781 \| good	0.718 \| good	4.095 \| good	0.097 \| good
2026-06-14T11:00:00.000Z	44 \| good	8.183 \| good	35.976 \| good	23.092 \| good	0.7 \| good	4.185 \| good	0.097 \| good
2026-06-14T12:00:00.000Z	44 \| good	8.466 \| good	37.039 \| good	26.082 \| good	0.684 \| good	4.208 \| good	0.097 \| good
2026-06-14T13:00:00.000Z	44 \| good	7.937 \| good	34.729 \| good	23.792 \| good	0.675 \| good	4.394 \| good	0.097 \| good
2026-06-14T14:00:00.000Z	44 \| good	7.796 \| good	34.557 \| good	27.465 \| good	0.675 \| good	3.983 \| good	0.096 \| good
2026-06-14T15:00:00.000Z	44 \| good	7.948 \| good	34.882 \| good	28.922 \| good	0.684 \| good	3.305 \| good	0.095 \| good
2026-06-14T16:00:00.000Z	44 \| good	8.108 \| good	35.679 \| good	31.169 \| good	0.684 \| good	2.7 \| good	0.095 \| good
2026-06-14T17:00:00.000Z	44 \| good	7.528 \| good	32.922 \| good	35.086 \| good	0.688 \| good	2.21 \| good	0.096 \| good
2026-06-14T18:00:00.000Z	38 \| good	7.357 \| good	32.338 \| good	39.955 \| good	0.688 \| good	1.756 \| good	0.096 \| good
2026-06-14T19:00:00.000Z	44 \| good	8.225 \| good	36.081 \| good	44.463 \| good	0.683 \| good	1.406 \| good	0.096 \| good
2026-06-14T20:00:00.000Z	45 \| good	7.984 \| good	35.292 \| good	48.644 \| good	0.683 \| good	1.131 \| good	0.096 \| good
2026-06-14T21:00:00.000Z	47 \| good	8.187 \| good	35.608 \| good	51.162 \| good	0.662 \| good	0.992 \| good	0.095 \| good
2026-06-14T22:00:00.000Z	46 \| good	8.096 \| good	35.758 \| good	49.899 \| good	0.64 \| good	0.955 \| good	0.094 \| good
2026-06-14T23:00:00.000Z	41 \| good	6.493 \| good	28.764 \| good	44.151 \| good	0.621 \| good	0.982 \| good	0.094 \| good
2026-06-15T00:00:00.000Z	58 \| moderate	13.431 \| fine	19.994 \| good	45.563 \| good	0.608 \| good	1.113 \| good	0.093 \| good
2026-06-15T01:00:00.000Z	38 \| good	6.86 \| good	30.451 \| good	36.206 \| good	0.611 \| good	1.588 \| good	0.094 \| good
2026-06-15T02:00:00.000Z	38 \| good	7.315 \| good	32.519 \| good	31.433 \| good	0.618 \| good	2.244 \| good	0.096 \| good
2026-06-15T03:00:00.000Z	49 \| good	8.566 \| good	37.824 \| good	27.714 \| good	0.631 \| good	3.329 \| good	0.097 \| good
2026-06-15T04:00:00.000Z	49 \| good	9.211 \| good	40.925 \| good	24.694 \| good	0.649 \| good	4.381 \| good	0.099 \| good

San Ramon

Empower business decisions with accurate air quality data

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

0.34ppm

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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Frequently asked questions

How frequently does the air quality data for San Ramon, California get updated?

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

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

San Ramon, California experienced its worst air quality at 09:00:00, 2026-06-12.

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

The best air quality in San Ramon, California was observed at 02:00:00 on 2026-06-12.

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

The air quality in San Ramon, California right now is Good, with an AQI of 41.

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

In San Ramon, California, O3 is the most frequently found pollutant.

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

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

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

San Ramon, California currently has a PM_2.5 concentration of 5.053 μg/m³.

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

San Ramon, California currently has a PM₁₀ concentration of 18.858 μg/m³.

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

The current carbon monoxide (CO) level in San Ramon, California is 0.361 ppm.

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

The current sulfur dioxide (SO₂) concentration in San Ramon, California is 0.546 ppb.

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

San Ramon, California currently has an ozone (O₃) concentration of 43.775 ppm.

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

The current level of nitrogen dioxide (NO₂) in San Ramon, California is 3.097 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-11T06:00:00.000Z	49 \| good	8.717 \| good	45.022 \| good	41.832 \| good	0.65 \| good	7.645 \| good	0.341 \| good
2026-06-11T07:00:00.000Z	54 \| moderate	11.349 \| good	40.759 \| good	40.695 \| good	0.614 \| good	6.574 \| good	0.358 \| good
2026-06-11T08:00:00.000Z	58 \| moderate	12.747 \| fine	57.169 \| fine	36.732 \| good	0.785 \| good	6.536 \| good	0.399 \| good
2026-06-11T09:00:00.000Z	37 \| good	5.661 \| good	13.993 \| good	39.581 \| good	0.624 \| good	8.589 \| good	0.399 \| good
2026-06-11T10:00:00.000Z	33 \| good	6.037 \| good	21.723 \| good	33.2 \| good	0.839 \| good	6.455 \| good	0.382 \| good
2026-06-11T11:00:00.000Z	31 \| good	4.316 \| good	14.983 \| good	33.372 \| good	0.5 \| good	7.402 \| good	0.367 \| good
2026-06-11T12:00:00.000Z	33 \| good	2.639 \| good	15.845 \| good	36.427 \| good	0.479 \| good	5.799 \| good	0.367 \| good
2026-06-11T13:00:00.000Z	38 \| good	2.545 \| good	18.897 \| good	40.922 \| good	0.611 \| good	5.105 \| good	0.388 \| good
2026-06-11T14:00:00.000Z	31 \| good	4.047 \| good	16.943 \| good	34.048 \| good	0.451 \| good	8.2 \| good	0.408 \| good
2026-06-11T15:00:00.000Z	22 \| good	3.754 \| good	13.522 \| good	23.096 \| good	0.572 \| good	10.523 \| good	0.54 \| good
2026-06-11T16:00:00.000Z	26 \| good	3.94 \| good	21.874 \| good	28.303 \| good	0.502 \| good	12.599 \| good	0.501 \| good
2026-06-11T17:00:00.000Z	33 \| good	6.255 \| good	31.989 \| good	35.683 \| good	0.624 \| good	9.269 \| good	0.534 \| good
2026-06-11T18:00:00.000Z	32 \| good	4.246 \| good	23.51 \| good	34.612 \| good	0.623 \| good	6.855 \| good	0.358 \| good
2026-06-11T19:00:00.000Z	34 \| good	3.425 \| good	14.013 \| good	37.495 \| good	0.637 \| good	4.704 \| good	0.267 \| good
2026-06-11T20:00:00.000Z	46 \| good	3.132 \| good	24.04 \| good	50.286 \| good	0.589 \| good	4.493 \| good	0.233 \| good
2026-06-11T21:00:00.000Z	45 \| good	3.183 \| good	13.49 \| good	49.227 \| good	0.592 \| good	3.806 \| good	0.2 \| good
2026-06-11T22:00:00.000Z	49 \| good	4.732 \| good	23.262 \| good	53.114 \| good	0.538 \| good	2.201 \| good	0.241 \| good
2026-06-11T23:00:00.000Z	67 \| moderate	3.402 \| good	18.38 \| good	59.56 \| fine	0.532 \| good	3.526 \| good	0.241 \| good
2026-06-12T00:00:00.000Z	67 \| moderate	7.146 \| good	27.305 \| good	59.711 \| fine	0.659 \| good	4.703 \| good	0.282 \| good
2026-06-12T01:00:00.000Z	80 \| moderate	9.633 \| good	50.04 \| good	63.883 \| fine	0.773 \| good	3.992 \| good	0.241 \| good
2026-06-12T02:00:00.000Z	58 \| moderate	11.991 \| good	41.558 \| good	57.206 \| fine	0.67 \| good	3.449 \| good	0.258 \| good
2026-06-12T03:00:00.000Z	49 \| good	9.228 \| good	35.121 \| good	53.025 \| good	0.484 \| good	2.92 \| good	0.258 \| good
2026-06-12T04:00:00.000Z	56 \| moderate	12.262 \| fine	43.297 \| good	53.129 \| good	0.603 \| good	2.835 \| good	0.258 \| good
2026-06-12T05:00:00.000Z	67 \| moderate	15.881 \| fine	63.387 \| fine	60.088 \| fine	0.782 \| good	4.945 \| good	0.299 \| good
2026-06-12T06:00:00.000Z	44 \| good	8.152 \| good	25.207 \| good	41.903 \| good	0.723 \| good	3.927 \| good	0.299 \| good
2026-06-12T07:00:00.000Z	52 \| moderate	9.943 \| good	47.116 \| good	41.835 \| good	0.72 \| good	3.871 \| good	0.241 \| good
2026-06-12T08:00:00.000Z	40 \| good	6.945 \| good	42.902 \| good	38.327 \| good	0.538 \| good	3.894 \| good	0.241 \| good
2026-06-12T09:00:00.000Z	31 \| good	3.798 \| good	17.264 \| good	34.154 \| good	0.639 \| good	3.22 \| good	0.241 \| good
2026-06-12T10:00:00.000Z	38 \| good	6.679 \| good	25.245 \| good	30.912 \| good	0.567 \| good	2.136 \| good	0.224 \| good
2026-06-12T11:00:00.000Z	31 \| good	4.221 \| good	13.122 \| good	32.511 \| good	0.605 \| good	4.227 \| good	0.224 \| good
2026-06-12T12:00:00.000Z	27 \| good	4.717 \| good	24.109 \| good	25.872 \| good	0.675 \| good	4.137 \| good	0.241 \| good
2026-06-12T13:00:00.000Z	27 \| good	3.771 \| good	12.44 \| good	29.364 \| good	0.618 \| good	4.733 \| good	0.33 \| good
2026-06-12T14:00:00.000Z	33 \| good	6.223 \| good	19.226 \| good	29.319 \| good	0.561 \| good	5.133 \| good	0.258 \| good
2026-06-12T15:00:00.000Z	38 \| good	7.069 \| good	21.368 \| good	25.125 \| good	0.673 \| good	6.553 \| good	0.317 \| good
2026-06-12T16:00:00.000Z	27 \| good	5.236 \| good	22.097 \| good	28.757 \| good	0.734 \| good	6.458 \| good	0.358 \| good
2026-06-12T17:00:00.000Z	38 \| good	7.107 \| good	27.659 \| good	33.733 \| good	0.715 \| good	6.556 \| good	0.341 \| good
2026-06-12T18:00:00.000Z	46 \| good	8.489 \| good	49.781 \| good	34.051 \| good	0.658 \| good	6.473 \| good	0.341 \| good
2026-06-12T19:00:00.000Z	49 \| good	8.781 \| good	36.448 \| good	43.324 \| good	0.66 \| good	5.943 \| good	0.341 \| good
2026-06-12T20:00:00.000Z	49 \| good	9.148 \| good	38.246 \| good	52.83 \| good	1.227 \| good	7.663 \| good	0.324 \| good
2026-06-12T21:00:00.000Z	71 \| moderate	6.423 \| good	23.423 \| good	60.737 \| fine	1.126 \| good	6.985 \| good	0.324 \| good
2026-06-12T22:00:00.000Z	77 \| moderate	5.339 \| good	27.663 \| good	62.918 \| fine	0.55 \| good	5.071 \| good	0.308 \| good
2026-06-12T23:00:00.000Z	64 \| moderate	5.729 \| good	18.926 \| good	59.171 \| fine	0.53 \| good	4.367 \| good	0.258 \| good
2026-06-13T00:00:00.000Z	49 \| good	8.553 \| good	38.939 \| good	49.002 \| good	0.548 \| good	3.233 \| good	0.258 \| good
2026-06-13T01:00:00.000Z	48 \| good	5.715 \| good	30.272 \| good	51.718 \| good	0.534 \| good	2.871 \| good	0.258 \| good
2026-06-13T02:00:00.000Z	45 \| good	4.831 \| good	25.632 \| good	48.776 \| good	0.519 \| good	3.117 \| good	0.282 \| good
2026-06-13T03:00:00.000Z	42 \| good	4.836 \| good	21.658 \| good	45.455 \| good	0.572 \| good	3.557 \| good	0.299 \| good
2026-06-13T04:00:00.000Z	41 \| good	4.822 \| good	20.501 \| good	44.323 \| good	0.677 \| good	3.623 \| good	0.275 \| good
2026-06-13T05:00:00.000Z	35 \| good	4.399 \| good	14.761 \| good	38.162 \| good	0.639 \| good	3.442 \| good	0.319 \| good
2026-06-13T05:00:00.000Z	54 \| moderate	10.893 \| good	48.28 \| good	24.207 \| good	0.738 \| good	5.225 \| good	0.12 \| good
2026-06-13T06:00:00.000Z	54 \| moderate	10.735 \| good	47.631 \| good	23.323 \| good	0.753 \| good	5.607 \| good	0.121 \| good
2026-06-13T07:00:00.000Z	52 \| moderate	9.996 \| good	44.153 \| good	23.38 \| good	0.758 \| good	5.823 \| good	0.122 \| good
2026-06-13T08:00:00.000Z	54 \| moderate	10.515 \| good	46.397 \| good	23.285 \| good	0.749 \| good	5.862 \| good	0.123 \| good
2026-06-13T09:00:00.000Z	49 \| good	9 \| good	39.892 \| good	23.114 \| good	0.746 \| good	5.445 \| good	0.121 \| good
2026-06-13T10:00:00.000Z	52 \| moderate	10.484 \| good	46.31 \| good	23.216 \| good	0.733 \| good	5.259 \| good	0.12 \| good
2026-06-13T11:00:00.000Z	49 \| good	8.901 \| good	38.972 \| good	22.863 \| good	0.735 \| good	4.851 \| good	0.119 \| good
2026-06-13T12:00:00.000Z	54 \| moderate	10.595 \| good	46.978 \| good	26.654 \| good	0.723 \| good	4.788 \| good	0.118 \| good
2026-06-13T13:00:00.000Z	49 \| good	9.278 \| good	41.009 \| good	24.904 \| good	0.711 \| good	4.67 \| good	0.118 \| good
2026-06-13T14:00:00.000Z	52 \| moderate	9.644 \| good	42.833 \| good	29.245 \| good	0.711 \| good	4.214 \| good	0.117 \| good
2026-06-13T15:00:00.000Z	52 \| moderate	10.305 \| good	45.682 \| good	32.599 \| good	0.735 \| good	3.734 \| good	0.115 \| good
2026-06-13T16:00:00.000Z	54 \| moderate	11.052 \| good	48.711 \| good	36.707 \| good	0.746 \| good	3.163 \| good	0.113 \| good
2026-06-13T17:00:00.000Z	54 \| moderate	11.389 \| good	50.384 \| good	42.498 \| good	0.765 \| good	2.715 \| good	0.112 \| good
2026-06-13T18:00:00.000Z	52 \| moderate	10.418 \| good	46.336 \| good	49.23 \| good	0.777 \| good	2.202 \| good	0.111 \| good
2026-06-13T19:00:00.000Z	52 \| moderate	10.335 \| good	45.752 \| good	54.684 \| good	0.795 \| good	1.74 \| good	0.11 \| good
2026-06-13T20:00:00.000Z	64 \| moderate	10.396 \| good	46.232 \| good	58.795 \| fine	0.795 \| good	1.337 \| good	0.108 \| good
2026-06-13T21:00:00.000Z	67 \| moderate	10.627 \| good	47.163 \| good	60.16 \| fine	0.798 \| good	1.186 \| good	0.107 \| good
2026-06-13T22:00:00.000Z	67 \| moderate	11.498 \| good	50.695 \| good	59.533 \| fine	0.805 \| good	1.169 \| good	0.104 \| good
2026-06-13T23:00:00.000Z	54 \| moderate	9.835 \| good	43.855 \| good	56.356 \| fine	0.794 \| good	1.219 \| good	0.102 \| good
2026-06-14T00:00:00.000Z	49 \| good	8.955 \| good	39.955 \| good	48.461 \| good	0.77 \| good	1.394 \| good	0.1 \| good
2026-06-14T01:00:00.000Z	49 \| good	9.128 \| good	40.428 \| good	41.801 \| good	0.737 \| good	1.688 \| good	0.097 \| good
2026-06-14T02:00:00.000Z	49 \| good	9.441 \| good	42.225 \| good	36.884 \| good	0.708 \| good	2.285 \| good	0.096 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.268 \| good	41.46 \| good	31.797 \| good	0.693 \| good	3.093 \| good	0.096 \| good
2026-06-14T04:00:00.000Z	49 \| good	8.634 \| good	37.897 \| good	27.891 \| good	0.694 \| good	3.765 \| good	0.097 \| good
2026-06-14T05:00:00.000Z	49 \| good	9.398 \| good	42.097 \| good	26.081 \| good	0.708 \| good	4.122 \| good	0.098 \| good
2026-06-14T06:00:00.000Z	49 \| good	9.03 \| good	39.819 \| good	25.177 \| good	0.721 \| good	4.534 \| good	0.099 \| good
2026-06-14T07:00:00.000Z	49 \| good	8.619 \| good	38.068 \| good	24.576 \| good	0.732 \| good	4.526 \| good	0.099 \| good
2026-06-14T08:00:00.000Z	44 \| good	8.466 \| good	37.236 \| good	24.699 \| good	0.735 \| good	4.241 \| good	0.098 \| good
2026-06-14T09:00:00.000Z	44 \| good	7.601 \| good	33.472 \| good	24.307 \| good	0.73 \| good	4.122 \| good	0.098 \| good
2026-06-14T10:00:00.000Z	49 \| good	9.273 \| good	41.397 \| good	23.781 \| good	0.718 \| good	4.095 \| good	0.097 \| good
2026-06-14T11:00:00.000Z	44 \| good	8.183 \| good	35.976 \| good	23.092 \| good	0.7 \| good	4.185 \| good	0.097 \| good
2026-06-14T12:00:00.000Z	44 \| good	8.466 \| good	37.039 \| good	26.082 \| good	0.684 \| good	4.208 \| good	0.097 \| good
2026-06-14T13:00:00.000Z	44 \| good	7.937 \| good	34.729 \| good	23.792 \| good	0.675 \| good	4.394 \| good	0.097 \| good
2026-06-14T14:00:00.000Z	44 \| good	7.796 \| good	34.557 \| good	27.465 \| good	0.675 \| good	3.983 \| good	0.096 \| good
2026-06-14T15:00:00.000Z	44 \| good	7.948 \| good	34.882 \| good	28.922 \| good	0.684 \| good	3.305 \| good	0.095 \| good
2026-06-14T16:00:00.000Z	44 \| good	8.108 \| good	35.679 \| good	31.169 \| good	0.684 \| good	2.7 \| good	0.095 \| good
2026-06-14T17:00:00.000Z	44 \| good	7.528 \| good	32.922 \| good	35.086 \| good	0.688 \| good	2.21 \| good	0.096 \| good
2026-06-14T18:00:00.000Z	38 \| good	7.357 \| good	32.338 \| good	39.955 \| good	0.688 \| good	1.756 \| good	0.096 \| good
2026-06-14T19:00:00.000Z	44 \| good	8.225 \| good	36.081 \| good	44.463 \| good	0.683 \| good	1.406 \| good	0.096 \| good
2026-06-14T20:00:00.000Z	45 \| good	7.984 \| good	35.292 \| good	48.644 \| good	0.683 \| good	1.131 \| good	0.096 \| good
2026-06-14T21:00:00.000Z	47 \| good	8.187 \| good	35.608 \| good	51.162 \| good	0.662 \| good	0.992 \| good	0.095 \| good
2026-06-14T22:00:00.000Z	46 \| good	8.096 \| good	35.758 \| good	49.899 \| good	0.64 \| good	0.955 \| good	0.094 \| good
2026-06-14T23:00:00.000Z	41 \| good	6.493 \| good	28.764 \| good	44.151 \| good	0.621 \| good	0.982 \| good	0.094 \| good
2026-06-15T00:00:00.000Z	58 \| moderate	13.431 \| fine	19.994 \| good	45.563 \| good	0.608 \| good	1.113 \| good	0.093 \| good
2026-06-15T01:00:00.000Z	38 \| good	6.86 \| good	30.451 \| good	36.206 \| good	0.611 \| good	1.588 \| good	0.094 \| good
2026-06-15T02:00:00.000Z	38 \| good	7.315 \| good	32.519 \| good	31.433 \| good	0.618 \| good	2.244 \| good	0.096 \| good
2026-06-15T03:00:00.000Z	49 \| good	8.566 \| good	37.824 \| good	27.714 \| good	0.631 \| good	3.329 \| good	0.097 \| good
2026-06-15T04:00:00.000Z	49 \| good	9.211 \| good	40.925 \| good	24.694 \| good	0.649 \| good	4.381 \| good	0.099 \| good

Current air quality index in San Ramon, California today

Common air pollutants in San Ramon, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Empower business decisions with accurate air quality data

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

Air quality in nearby cities

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Frequently asked questions

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

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

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

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

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

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

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

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