What is the current level of PM10 in Westmont, California?

Westmont, California currently has a PM10 concentration of 23.471 μg/m3.

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

The current sulfur dioxide (SO2) concentration in Westmont, California is 0.594 ppb.

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

Westmont, California currently has an ozone (O3) concentration of 33.925 ppm.

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

The current level of nitrogen dioxide (NO2) in Westmont, California is 4.214 ppb.

Current air quality index in Westmont, California today

Name: Live air pollution levels in Westmont, California today
Creator: Ambee

Stay updated with real-time air quality in Westmont, 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

Westmont, California

Last updated: ... (Local time)

Common air pollutants in Westmont, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.62 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.47 μg/m³

155

255

425

605+

Ozone (O₃)

33.92 ppb

201

201+

Sulfur Dioxide (SO₂)

0.59 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.21 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.11 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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Westmont, California

Scroll To Air Quality Map

Track live Westmont, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-09T00:00:00.000Z	30 \| good	4.828 \| good	20.867 \| good	31.899 \| good	3.175 \| good	6.671 \| good	0.118 \| good
2025-09-09T01:00:00.000Z	27 \| good	4.372 \| good	18.959 \| good	29.002 \| good	2.937 \| good	8.876 \| good	0.122 \| good
2025-09-09T02:00:00.000Z	25 \| good	4.365 \| good	19.151 \| good	27.496 \| good	2.268 \| good	10.029 \| good	0.126 \| good
2025-09-09T03:00:00.000Z	23 \| good	3.517 \| good	15.302 \| good	24.601 \| good	2.21 \| good	12.771 \| good	0.136 \| good
2025-09-09T04:00:00.000Z	21 \| good	2.846 \| good	11.589 \| good	22.767 \| good	2.593 \| good	15.587 \| good	0.14 \| good
2025-09-09T05:00:00.000Z	19 \| good	1.918 \| good	7.788 \| good	21.189 \| good	2.724 \| good	17.889 \| good	0.148 \| good
2025-09-09T06:00:00.000Z	19 \| good	2.858 \| good	11.471 \| good	19.616 \| good	2.855 \| good	20.191 \| good	0.156 \| good
2025-09-09T07:00:00.000Z	20 \| good	1.559 \| good	6.251 \| good	16.676 \| good	2.695 \| good	21.46 \| good	0.186 \| good
2025-09-09T08:00:00.000Z	44 \| good	7.559 \| good	33.525 \| good	7.571 \| good	0.221 \| good	10.511 \| good	0.123 \| good
2025-09-09T09:00:00.000Z	27 \| good	4.544 \| good	19.993 \| good	7.804 \| good	0.164 \| good	10.998 \| good	0.146 \| good
2025-09-09T10:00:00.000Z	27 \| good	4.718 \| good	20.351 \| good	7.85 \| good	0.147 \| good	10.998 \| good	0.146 \| good
2025-09-09T11:00:00.000Z	27 \| good	5.104 \| good	20.943 \| good	6.794 \| good	0.169 \| good	9.835 \| good	0.131 \| good
2025-09-09T12:00:00.000Z	22 \| good	4.195 \| good	18.317 \| good	8.395 \| good	0.143 \| good	9.838 \| good	0.127 \| good
2025-09-09T13:00:00.000Z	22 \| good	3.855 \| good	15.807 \| good	6.599 \| good	0.214 \| good	12.018 \| good	0.131 \| good
2025-09-09T14:00:00.000Z	22 \| good	3.882 \| good	14.706 \| good	10.396 \| good	0.385 \| good	8.872 \| good	0.137 \| good
2025-09-09T15:00:00.000Z	22 \| good	3.9 \| good	17.552 \| good	11.488 \| good	0.489 \| good	9.953 \| good	0.134 \| good
2025-09-09T16:00:00.000Z	27 \| good	4.635 \| good	20.922 \| good	15.759 \| good	0.666 \| good	7.348 \| good	0.128 \| good
2025-09-09T17:00:00.000Z	33 \| good	5.552 \| good	29.125 \| good	19.988 \| good	0.684 \| good	6.682 \| good	0.157 \| good
2025-09-09T18:00:00.000Z	33 \| good	5.72 \| good	23.655 \| good	20.729 \| good	0.24 \| good	6.048 \| good	0.119 \| good
2025-09-09T19:00:00.000Z	24 \| good	4.375 \| good	18.349 \| good	25.772 \| good	0.196 \| good	6.538 \| good	0.119 \| good
2025-09-09T20:00:00.000Z	27 \| good	5.001 \| good	20.52 \| good	27.282 \| good	0.154 \| good	7.948 \| good	0.123 \| good
2025-09-09T21:00:00.000Z	27 \| good	5.093 \| good	22.072 \| good	28.584 \| good	0.231 \| good	8.151 \| good	0.126 \| good
2025-09-09T22:00:00.000Z	28 \| good	5.486 \| good	23.736 \| good	29.707 \| good	0.158 \| good	6.372 \| good	0.107 \| good
2025-09-09T23:00:00.000Z	33 \| good	5.677 \| good	24.62 \| good	30.874 \| good	0.122 \| good	6.922 \| good	0.123 \| good
2025-09-10T00:00:00.000Z	28 \| good	5.081 \| good	21.191 \| good	30.002 \| good	0.127 \| good	7.036 \| good	0.198 \| good
2025-09-10T01:00:00.000Z	26 \| good	4.413 \| good	18.343 \| good	28.363 \| good	0.2 \| good	6.265 \| good	0.177 \| good
2025-09-10T02:00:00.000Z	25 \| good	3.524 \| good	14.894 \| good	26.831 \| good	0.229 \| good	6.633 \| good	0.177 \| good
2025-09-10T03:00:00.000Z	23 \| good	3.822 \| good	16.898 \| good	24.865 \| good	0.238 \| good	7.737 \| good	0.171 \| good
2025-09-10T04:00:00.000Z	22 \| good	4.067 \| good	17.859 \| good	20.584 \| good	0.296 \| good	9.509 \| good	0.115 \| good
2025-09-10T05:00:00.000Z	22 \| good	3.571 \| good	15.483 \| good	19.909 \| good	0.554 \| good	11.29 \| good	0.169 \| good
2025-09-10T06:00:00.000Z	18 \| good	2.401 \| good	11.205 \| good	18.987 \| good	0.224 \| good	10.046 \| good	0.182 \| good
2025-09-10T07:00:00.000Z	22 \| good	3.988 \| good	18.632 \| good	19.488 \| good	0.171 \| good	9.535 \| good	0.169 \| good
2025-09-10T08:00:00.000Z	27 \| good	4.977 \| good	22.72 \| good	17.715 \| good	0.212 \| good	9.269 \| good	0.136 \| good
2025-09-10T09:00:00.000Z	38 \| good	7.055 \| good	32.021 \| good	17.088 \| good	0.195 \| good	7.237 \| good	0.1 \| good
2025-09-10T10:00:00.000Z	38 \| good	6.973 \| good	31.4 \| good	15.019 \| good	0.39 \| good	7.425 \| good	0.1 \| good
2025-09-10T11:00:00.000Z	33 \| good	6.21 \| good	27.94 \| good	16.032 \| good	0.198 \| good	5.702 \| good	0.113 \| good
2025-09-10T12:00:00.000Z	22 \| good	4.037 \| good	17.171 \| good	19.072 \| good	0.238 \| good	4.139 \| good	0.127 \| good
2025-09-10T13:00:00.000Z	27 \| good	4.962 \| good	20.314 \| good	18.863 \| good	0.306 \| good	4.841 \| good	0.14 \| good
2025-09-10T14:00:00.000Z	22 \| good	4.489 \| good	18.543 \| good	17.663 \| good	0.5 \| good	9.548 \| good	0.119 \| good
2025-09-10T15:00:00.000Z	60 \| moderate	14.24 \| fine	61.915 \| fine	18.715 \| good	0.347 \| good	10.67 \| good	0.19 \| good
2025-09-10T16:00:00.000Z	94 \| moderate	32.194 \| fine	114.447 \| fine	22.363 \| good	0.282 \| good	7.872 \| good	0.119 \| good
2025-09-10T17:00:00.000Z	77 \| moderate	23.18 \| fine	101.619 \| fine	24.678 \| good	0.407 \| good	3.89 \| good	0.119 \| good
2025-09-10T18:00:00.000Z	69 \| moderate	19.027 \| fine	85.862 \| fine	28.794 \| good	0.395 \| good	3.066 \| good	0.1 \| good
2025-09-10T19:00:00.000Z	52 \| moderate	9.564 \| good	41.934 \| good	28.851 \| good	0.395 \| good	3.273 \| good	0.142 \| good
2025-09-10T20:00:00.000Z	38 \| good	7.162 \| good	32.34 \| good	30.723 \| good	0.157 \| good	3.194 \| good	0.138 \| good
2025-09-10T21:00:00.000Z	33 \| good	5.909 \| good	25.576 \| good	34.009 \| good	0.232 \| good	3.336 \| good	0.158 \| good
2025-09-10T22:00:00.000Z	33 \| good	5.618 \| good	23.471 \| good	33.925 \| good	0.594 \| good	4.214 \| good	0.114 \| good
2025-09-10T23:00:00.000Z	31 \| good	5.055 \| good	22.421 \| good	33.767 \| good	0.625 \| good	5.063 \| good	0.176 \| good
2025-09-10T23:00:00.000Z	33 \| good	5.618 \| good	23.471 \| good	33.925 \| good	0.594 \| good	4.214 \| good	0.114 \| good
2025-09-11T00:00:00.000Z	38 \| good	7.217 \| good	31.951 \| good	39.21 \| good	3.041 \| good	4.969 \| good	0.112 \| good
2025-09-11T01:00:00.000Z	34 \| good	5.051 \| good	21.792 \| good	36.607 \| good	2.959 \| good	6.633 \| good	0.114 \| good
2025-09-11T02:00:00.000Z	25 \| good	3.471 \| good	15.106 \| good	26.846 \| good	2.878 \| good	8.297 \| good	0.116 \| good
2025-09-11T03:00:00.000Z	19 \| good	0.728 \| good	2.87 \| good	20.584 \| good	2.796 \| good	9.961 \| good	0.117 \| good
2025-09-11T04:00:00.000Z	18 \| good	1.413 \| good	5.838 \| good	19.123 \| good	3.004 \| good	12.346 \| good	0.123 \| good
2025-09-11T05:00:00.000Z	18 \| good	1.341 \| good	5.796 \| good	19.411 \| good	3.212 \| good	14.731 \| good	0.129 \| good
2025-09-11T06:00:00.000Z	16 \| good	1.604 \| good	6.624 \| good	17.346 \| good	3.42 \| good	17.115 \| good	0.135 \| good
2025-09-11T07:00:00.000Z	17 \| good	0.682 \| good	2.856 \| good	17.697 \| good	3.569 \| good	17.339 \| good	0.135 \| good
2025-09-11T08:00:00.000Z	17 \| good	0.814 \| good	2.959 \| good	17.816 \| good	3.718 \| good	17.562 \| good	0.134 \| good
2025-09-11T09:00:00.000Z	17 \| good	1.092 \| good	4.239 \| good	17.316 \| good	3.867 \| good	17.785 \| good	0.134 \| good
2025-09-11T10:00:00.000Z	18 \| good	1.736 \| good	7.226 \| good	15.528 \| good	4.492 \| good	19.214 \| good	0.136 \| good
2025-09-11T11:00:00.000Z	20 \| good	1.702 \| good	6.829 \| good	13.595 \| good	5.117 \| good	20.642 \| good	0.138 \| good
2025-09-11T12:00:00.000Z	21 \| good	3.097 \| good	13.488 \| good	10.827 \| good	5.742 \| good	22.071 \| good	0.139 \| good
2025-09-11T13:00:00.000Z	20 \| good	3.3 \| good	14.112 \| good	13.595 \| good	6.189 \| good	20.784 \| good	0.155 \| good
2025-09-11T14:00:00.000Z	18 \| good	2.448 \| good	10.082 \| good	13.239 \| good	6.636 \| good	19.497 \| good	0.171 \| good
2025-09-11T15:00:00.000Z	27 \| good	4.533 \| good	19.72 \| good	16.005 \| good	7.083 \| good	18.211 \| good	0.186 \| good
2025-09-11T16:00:00.000Z	33 \| good	6.275 \| good	27.471 \| good	18.933 \| good	6.954 \| good	15.792 \| good	0.172 \| good
2025-09-11T17:00:00.000Z	44 \| good	7.754 \| good	33.997 \| good	23.76 \| good	6.824 \| good	13.374 \| good	0.158 \| good
2025-09-11T18:00:00.000Z	49 \| good	8.946 \| good	39.411 \| good	29.969 \| good	6.694 \| good	10.956 \| good	0.144 \| good
2025-09-11T19:00:00.000Z	33 \| good	6.034 \| good	26.36 \| good	34.739 \| good	6.248 \| good	9.659 \| good	0.139 \| good
2025-09-11T20:00:00.000Z	34 \| good	5.109 \| good	22.377 \| good	37.386 \| good	5.802 \| good	8.362 \| good	0.134 \| good
2025-09-11T21:00:00.000Z	36 \| good	4.619 \| good	20.322 \| good	39.15 \| good	5.356 \| good	7.066 \| good	0.129 \| good
2025-09-11T22:00:00.000Z	35 \| good	3.37 \| good	14.485 \| good	37.891 \| good	4.955 \| good	6.82 \| good	0.127 \| good
2025-09-11T23:00:00.000Z	35 \| good	3.761 \| good	16.44 \| good	37.852 \| good	4.553 \| good	6.574 \| good	0.125 \| good
2025-09-12T00:00:00.000Z	33 \| good	2.304 \| good	9.542 \| good	35.679 \| good	4.151 \| good	6.329 \| good	0.123 \| good
2025-09-12T01:00:00.000Z	29 \| good	1.946 \| good	8.081 \| good	31.18 \| good	4.134 \| good	8.883 \| good	0.13 \| good
2025-09-12T02:00:00.000Z	26 \| good	2.562 \| good	10.715 \| good	27.671 \| good	4.117 \| good	11.436 \| good	0.137 \| good
2025-09-12T03:00:00.000Z	22 \| good	2.588 \| good	10.715 \| good	24.213 \| good	4.1 \| good	13.99 \| good	0.144 \| good
2025-09-12T04:00:00.000Z	20 \| good	3.211 \| good	13.918 \| good	22.014 \| good	4.523 \| good	17.807 \| good	0.157 \| good
2025-09-12T05:00:00.000Z	21 \| good	2.76 \| good	11.142 \| good	20.073 \| good	4.946 \| good	21.623 \| good	0.169 \| good
2025-09-12T06:00:00.000Z	24 \| good	4.296 \| good	18.527 \| good	17.268 \| good	5.369 \| good	25.44 \| good	0.181 \| good
2025-09-12T07:00:00.000Z	25 \| good	4.155 \| good	18.285 \| good	14.438 \| good	5.62 \| good	26.546 \| good	0.19 \| good
2025-09-12T08:00:00.000Z	26 \| good	4.185 \| good	18.204 \| good	11.608 \| good	5.87 \| good	27.653 \| good	0.2 \| good
2025-09-12T09:00:00.000Z	27 \| good	4.884 \| good	21.112 \| good	11.073 \| good	6.121 \| good	28.759 \| good	0.209 \| good
2025-09-12T10:00:00.000Z	27 \| good	4.805 \| good	20.739 \| good	8.929 \| good	6.118 \| good	28.528 \| good	0.212 \| good
2025-09-12T11:00:00.000Z	26 \| good	4.199 \| good	18.292 \| good	6.341 \| good	6.115 \| good	28.297 \| good	0.216 \| good
2025-09-12T12:00:00.000Z	26 \| good	2.738 \| good	11.795 \| good	7.233 \| good	6.112 \| good	28.066 \| good	0.219 \| good
2025-09-12T13:00:00.000Z	25 \| good	2.695 \| good	11.273 \| good	7.13 \| good	5.986 \| good	26.566 \| good	0.243 \| good
2025-09-12T14:00:00.000Z	24 \| good	2.242 \| good	9.348 \| good	14.014 \| good	5.861 \| good	25.065 \| good	0.268 \| good
2025-09-12T15:00:00.000Z	23 \| good	3.263 \| good	14.367 \| good	17.673 \| good	5.736 \| good	23.565 \| good	0.293 \| good
2025-09-12T16:00:00.000Z	33 \| good	5.99 \| good	26.411 \| good	20.686 \| good	5.753 \| good	19.276 \| good	0.248 \| good
2025-09-12T17:00:00.000Z	38 \| good	6.73 \| good	29.769 \| good	25.381 \| good	5.77 \| good	14.987 \| good	0.203 \| good
2025-09-12T18:00:00.000Z	44 \| good	8.061 \| good	35.21 \| good	31.698 \| good	5.786 \| good	10.698 \| good	0.158 \| good
2025-09-12T19:00:00.000Z	49 \| good	9.248 \| good	41.241 \| good	38.385 \| good	5.551 \| good	9.446 \| good	0.153 \| good
2025-09-12T20:00:00.000Z	49 \| good	8.569 \| good	37.457 \| good	39.721 \| good	5.316 \| good	8.193 \| good	0.148 \| good
2025-09-12T21:00:00.000Z	44 \| good	7.568 \| good	33.245 \| good	40.352 \| good	5.081 \| good	6.94 \| good	0.143 \| good
2025-09-12T22:00:00.000Z	34 \| good	4.48 \| good	19.363 \| good	37.145 \| good	4.965 \| good	7.027 \| good	0.143 \| good
2025-09-12T23:00:00.000Z	31 \| good	4.398 \| good	18.962 \| good	34.34 \| good	4.85 \| good	7.115 \| good	0.143 \| good

Westmont

Empower business decisions with accurate air quality data

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

0.22ppm

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 Westmont, California get updated?

Air quality updates for Westmont, California are available every hour.

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

Westmont, California experienced its worst air quality at 04:00:00, 2025-09-10.

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

The best air quality in Westmont, California was observed at 06:00:00 on 2025-09-10.

What is the air quality in Westmont, California right now?

The air quality in Westmont, California right now is Good, with an AQI of 33.

What pollutant is most frequently found in Westmont, California?

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

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

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

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

Westmont, California currently has a PM_2.5 concentration of 5.618 μg/m³.

What is the current level of PM₁₀ in Westmont, California?

Westmont, California currently has a PM₁₀ concentration of 23.471 μg/m³.

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

The current carbon monoxide (CO) level in Westmont, California is 0.114 ppm.

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

The current sulfur dioxide (SO₂) concentration in Westmont, California is 0.594 ppb.

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

Westmont, California currently has an ozone (O₃) concentration of 33.925 ppm.

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

The current level of nitrogen dioxide (NO₂) in Westmont, California is 4.214 ppb.

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