What is the current concentration of PM10 in Sierra Madre, California?

The current PM10 concentration at Sierra Madre, California is 17.139 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Sierra Madre, California?

The current sulfur dioxide (SO2) concentration at Sierra Madre, California is 0.581 ppb.

What is the current concentration of ozone (O3) in Sierra Madre, California?

The current ozone (O3) concentration at Sierra Madre, California is 41.588 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Sierra Madre, California?

The current nitrogen dioxide (NO2) concentration at Sierra Madre, California is 2.623 ppb.

Sierra Madre, California live air quality index now

Q: What is the current concentration of PM2.5 in Sierra Madre, California?

The current PM2.5 concentration at Sierra Madre, California is 5.243 μg/m3.

Stay updated with real-time air quality in Sierra Madre, 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

Sierra Madre, California

Last updated: ... (Local time)

Major air pollutants in Sierra Madre, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.24 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.14 μg/m³

155

255

425

605+

Ozone (O₃)

41.59 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.62 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Sierra Madre, California

Get Live Pollen Counts

Sierra Madre, California

Scroll To Air Quality Map

Track live Sierra Madre, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-24T09:00:00.000Z	27 \| good	5.163 \| good	20.584 \| good	26.723 \| good	0.744 \| good	10.564 \| good	0.249 \| good
2026-04-24T10:00:00.000Z	33 \| good	6.273 \| good	23.462 \| good	23.617 \| good	0.721 \| good	11.631 \| good	0.301 \| good
2026-04-24T11:00:00.000Z	38 \| good	7.308 \| good	27.513 \| good	19.756 \| good	0.831 \| good	11.96 \| good	0.303 \| good
2026-04-24T12:00:00.000Z	33 \| good	5.906 \| good	31.585 \| good	20.341 \| good	0.648 \| good	13.299 \| good	0.325 \| good
2026-04-24T13:00:00.000Z	33 \| good	5.562 \| good	21.518 \| good	20.341 \| good	0.657 \| good	16.514 \| good	0.423 \| good
2026-04-24T14:00:00.000Z	27 \| good	4.884 \| good	18.252 \| good	19.269 \| good	0.719 \| good	17.84 \| good	0.5 \| good
2026-04-24T15:00:00.000Z	33 \| good	6.238 \| good	24.038 \| good	22.987 \| good	0.786 \| good	15.633 \| good	0.397 \| good
2026-04-24T16:00:00.000Z	33 \| good	5.828 \| good	22.395 \| good	27.589 \| good	0.853 \| good	4.111 \| good	0.297 \| good
2026-04-24T17:00:00.000Z	33 \| good	6.48 \| good	28.365 \| good	35.941 \| good	0.725 \| good	2.919 \| good	0.235 \| good
2026-04-24T18:00:00.000Z	39 \| good	5.147 \| good	32.278 \| good	42.365 \| good	0.739 \| good	4.729 \| good	0.234 \| good
2026-04-24T19:00:00.000Z	46 \| good	5.188 \| good	22.412 \| good	49.795 \| good	0.663 \| good	3.654 \| good	0.195 \| good
2026-04-24T20:00:00.000Z	50 \| good	4.799 \| good	20.855 \| good	54.064 \| good	0.64 \| good	2.938 \| good	0.224 \| good
2026-04-24T21:00:00.000Z	51 \| moderate	4.292 \| good	14.927 \| good	55.124 \| fine	0.671 \| good	2.441 \| good	0.172 \| good
2026-04-24T22:00:00.000Z	51 \| moderate	4.718 \| good	20.575 \| good	55.237 \| fine	0.68 \| good	2.479 \| good	0.182 \| good
2026-04-24T23:00:00.000Z	54 \| moderate	4.637 \| good	22.722 \| good	56.192 \| fine	0.713 \| good	2.464 \| good	0.182 \| good
2026-04-25T00:00:00.000Z	50 \| good	5.915 \| good	27.241 \| good	54.384 \| good	0.832 \| good	2.988 \| good	0.182 \| good
2026-04-25T01:00:00.000Z	49 \| good	5.562 \| good	26.718 \| good	53.218 \| good	0.813 \| good	2.757 \| good	0.197 \| good
2026-04-25T02:00:00.000Z	47 \| good	5.835 \| good	23.255 \| good	51.497 \| good	0.675 \| good	2.758 \| good	0.197 \| good
2026-04-25T03:00:00.000Z	77 \| moderate	6.456 \| good	106.796 \| fine	45.985 \| good	0.657 \| good	5.67 \| good	0.247 \| good
2026-04-25T04:00:00.000Z	40 \| good	6.488 \| good	25.934 \| good	43.313 \| good	0.588 \| good	4.431 \| good	0.241 \| good
2026-04-25T05:00:00.000Z	38 \| good	7.057 \| good	28.709 \| good	40.935 \| good	0.731 \| good	3.407 \| good	0.279 \| good
2026-04-25T06:00:00.000Z	44 \| good	7.67 \| good	26.728 \| good	40.935 \| good	0.727 \| good	3.407 \| good	0.279 \| good
2026-04-25T07:00:00.000Z	38 \| good	6.972 \| good	31.287 \| good	37.429 \| good	0.654 \| good	4.029 \| good	0.287 \| good
2026-04-25T08:00:00.000Z	52 \| moderate	10.181 \| good	33.716 \| good	32.173 \| good	0.589 \| good	4.48 \| good	0.248 \| good
2026-04-25T09:00:00.000Z	52 \| moderate	9.687 \| good	40.599 \| good	31.622 \| good	0.556 \| good	4.733 \| good	0.194 \| good
2026-04-25T10:00:00.000Z	49 \| good	8.898 \| good	32.099 \| good	29.021 \| good	0.537 \| good	6.599 \| good	0.186 \| good
2026-04-25T11:00:00.000Z	44 \| good	7.786 \| good	26.241 \| good	29.055 \| good	0.741 \| good	5.251 \| good	0.223 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.11 \| good	24.813 \| good	29.78 \| good	0.481 \| good	4.928 \| good	0.223 \| good
2026-04-25T13:00:00.000Z	38 \| good	7.142 \| good	24.644 \| good	29.78 \| good	0.496 \| good	4.928 \| good	0.223 \| good
2026-04-25T14:00:00.000Z	44 \| good	8.007 \| good	28.062 \| good	34.857 \| good	0.519 \| good	4.334 \| good	0.272 \| good
2026-04-25T15:00:00.000Z	44 \| good	7.7 \| good	26.969 \| good	37.189 \| good	0.61 \| good	5.137 \| good	0.265 \| good
2026-04-25T16:00:00.000Z	49 \| good	8.547 \| good	31.744 \| good	40.517 \| good	0.517 \| good	4.113 \| good	0.21 \| good
2026-04-25T17:00:00.000Z	41 \| good	6.349 \| good	22.104 \| good	43.584 \| good	0.476 \| good	3.505 \| good	0.233 \| good
2026-04-25T18:00:00.000Z	44 \| good	7.985 \| good	27.484 \| good	44.962 \| good	0.5 \| good	3.167 \| good	0.217 \| good
2026-04-25T19:00:00.000Z	54 \| moderate	11.211 \| good	35.413 \| good	47.498 \| good	0.483 \| good	2.541 \| good	0.217 \| good
2026-04-25T20:00:00.000Z	49 \| good	9.189 \| good	35.598 \| good	49.788 \| good	0.46 \| good	1.559 \| good	0.187 \| good
2026-04-25T21:00:00.000Z	49 \| good	8.911 \| good	36.801 \| good	50.852 \| good	0.499 \| good	1.939 \| good	0.182 \| good
2026-04-25T22:00:00.000Z	48 \| good	7.63 \| good	31.165 \| good	51.724 \| good	0.473 \| good	1.934 \| good	0.187 \| good
2026-04-25T23:00:00.000Z	46 \| good	7.277 \| good	25.011 \| good	50.275 \| good	0.487 \| good	1.491 \| good	0.182 \| good
2026-04-26T00:00:00.000Z	44 \| good	6.528 \| good	34.463 \| good	47.74 \| good	0.577 \| good	1.585 \| good	0.182 \| good
2026-04-26T01:00:00.000Z	43 \| good	5.626 \| good	17.533 \| good	46.121 \| good	0.572 \| good	2.018 \| good	0.197 \| good
2026-04-26T02:00:00.000Z	41 \| good	6.255 \| good	20.926 \| good	44.291 \| good	0.595 \| good	2.066 \| good	0.197 \| good
2026-04-26T03:00:00.000Z	40 \| good	6.127 \| good	19.035 \| good	42.589 \| good	0.559 \| good	2.37 \| good	0.197 \| good
2026-04-26T04:00:00.000Z	38 \| good	6.435 \| good	20.76 \| good	41.174 \| good	0.521 \| good	2.207 \| good	0.195 \| good
2026-04-26T05:00:00.000Z	38 \| good	6.438 \| good	20.684 \| good	41.174 \| good	0.692 \| good	1.254 \| good	0.187 \| good
2026-04-26T06:00:00.000Z	39 \| good	5.514 \| good	17.02 \| good	41.588 \| good	0.574 \| good	3.033 \| good	0.202 \| good
2026-04-26T07:00:00.000Z	39 \| good	5.243 \| good	17.139 \| good	41.588 \| good	0.581 \| good	2.623 \| good	0.202 \| good
2026-04-26T08:00:00.000Z	38 \| good	5.849 \| good	17.16 \| good	40.859 \| good	0.567 \| good	1.396 \| good	0.202 \| good
2026-04-26T08:00:00.000Z	39 \| good	5.243 \| good	17.139 \| good	41.588 \| good	0.581 \| good	2.623 \| good	0.202 \| good
2026-04-26T09:00:00.000Z	34 \| good	1.125 \| good	4.819 \| good	36.642 \| good	1.876 \| good	6.592 \| good	0.125 \| good
2026-04-26T10:00:00.000Z	35 \| good	1.191 \| good	4.82 \| good	37.566 \| good	1.892 \| good	6.15 \| good	0.123 \| good
2026-04-26T11:00:00.000Z	32 \| good	1.744 \| good	7.463 \| good	35.167 \| good	1.909 \| good	5.708 \| good	0.121 \| good
2026-04-26T12:00:00.000Z	29 \| good	1.072 \| good	4.502 \| good	31.308 \| good	1.926 \| good	5.266 \| good	0.119 \| good
2026-04-26T13:00:00.000Z	28 \| good	0.642 \| good	2.153 \| good	29.653 \| good	1.961 \| good	5.46 \| good	0.122 \| good
2026-04-26T14:00:00.000Z	30 \| good	0.75 \| good	2.938 \| good	32.297 \| good	1.995 \| good	5.655 \| good	0.125 \| good
2026-04-26T15:00:00.000Z	36 \| good	1.225 \| good	4.97 \| good	38.69 \| good	2.03 \| good	5.85 \| good	0.128 \| good
2026-04-26T16:00:00.000Z	40 \| good	1.179 \| good	4.964 \| good	42.952 \| good	1.842 \| good	5.117 \| good	0.127 \| good
2026-04-26T17:00:00.000Z	42 \| good	1.511 \| good	6.181 \| good	45.141 \| good	1.654 \| good	4.384 \| good	0.126 \| good
2026-04-26T18:00:00.000Z	46 \| good	1.271 \| good	5.181 \| good	49.995 \| good	1.466 \| good	3.651 \| good	0.125 \| good
2026-04-26T19:00:00.000Z	50 \| good	1.563 \| good	6.237 \| good	53.727 \| good	1.382 \| good	3.249 \| good	0.124 \| good
2026-04-26T20:00:00.000Z	54 \| moderate	2.396 \| good	9.928 \| good	55.995 \| fine	1.298 \| good	2.846 \| good	0.123 \| good
2026-04-26T21:00:00.000Z	50 \| good	1.865 \| good	7.983 \| good	53.97 \| good	1.214 \| good	2.444 \| good	0.121 \| good
2026-04-26T22:00:00.000Z	48 \| good	1.985 \| good	8.237 \| good	52.386 \| good	1.208 \| good	2.602 \| good	0.122 \| good
2026-04-26T23:00:00.000Z	46 \| good	1.479 \| good	6.201 \| good	50.119 \| good	1.203 \| good	2.761 \| good	0.123 \| good
2026-04-27T00:00:00.000Z	45 \| good	1.113 \| good	4.361 \| good	49.288 \| good	1.197 \| good	2.919 \| good	0.123 \| good
2026-04-27T01:00:00.000Z	44 \| good	1.341 \| good	5.309 \| good	48.137 \| good	1.317 \| good	4.014 \| good	0.126 \| good
2026-04-27T02:00:00.000Z	40 \| good	2.047 \| good	8.358 \| good	43.483 \| good	1.436 \| good	5.109 \| good	0.129 \| good
2026-04-27T03:00:00.000Z	41 \| good	2.523 \| good	10.148 \| good	44.354 \| good	1.556 \| good	6.203 \| good	0.131 \| good
2026-04-27T04:00:00.000Z	38 \| good	2.665 \| good	11.077 \| good	41.141 \| good	1.686 \| good	6.747 \| good	0.132 \| good
2026-04-27T05:00:00.000Z	35 \| good	3.488 \| good	15.157 \| good	37.984 \| good	1.816 \| good	7.291 \| good	0.133 \| good
2026-04-27T06:00:00.000Z	32 \| good	2.178 \| good	9.078 \| good	35.178 \| good	1.946 \| good	7.835 \| good	0.134 \| good
2026-04-27T07:00:00.000Z	32 \| good	1.732 \| good	7.114 \| good	35.213 \| good	1.985 \| good	7.478 \| good	0.133 \| good
2026-04-27T08:00:00.000Z	31 \| good	1.954 \| good	8.134 \| good	33.622 \| good	2.024 \| good	7.12 \| good	0.132 \| good
2026-04-27T09:00:00.000Z	27 \| good	2.111 \| good	8.238 \| good	28.605 \| good	2.063 \| good	6.762 \| good	0.131 \| good
2026-04-27T10:00:00.000Z	24 \| good	1.982 \| good	7.962 \| good	26.457 \| good	2.247 \| good	7.234 \| good	0.131 \| good
2026-04-27T11:00:00.000Z	23 \| good	0.757 \| good	2.962 \| good	25.499 \| good	2.431 \| good	7.705 \| good	0.132 \| good
2026-04-27T12:00:00.000Z	27 \| good	1.174 \| good	4.824 \| good	29.41 \| good	2.615 \| good	8.176 \| good	0.133 \| good
2026-04-27T13:00:00.000Z	24 \| good	1.304 \| good	5.361 \| good	25.666 \| good	2.679 \| good	7.822 \| good	0.135 \| good
2026-04-27T14:00:00.000Z	28 \| good	1.317 \| good	5.328 \| good	30.265 \| good	2.744 \| good	7.468 \| good	0.137 \| good
2026-04-27T15:00:00.000Z	36 \| good	1.729 \| good	7.141 \| good	39.239 \| good	2.808 \| good	7.114 \| good	0.139 \| good
2026-04-27T16:00:00.000Z	43 \| good	2.012 \| good	8.147 \| good	45.88 \| good	2.655 \| good	6.287 \| good	0.138 \| good
2026-04-27T17:00:00.000Z	46 \| good	2.319 \| good	9.31 \| good	49.588 \| good	2.502 \| good	5.46 \| good	0.137 \| good
2026-04-27T18:00:00.000Z	50 \| good	3.285 \| good	14.238 \| good	54.178 \| good	2.349 \| good	4.633 \| good	0.136 \| good
2026-04-27T19:00:00.000Z	58 \| moderate	4.936 \| good	21.213 \| good	57.401 \| fine	2.235 \| good	4.178 \| good	0.135 \| good
2026-04-27T20:00:00.000Z	67 \| moderate	5.999 \| good	27.008 \| good	59.657 \| fine	2.122 \| good	3.723 \| good	0.134 \| good
2026-04-27T21:00:00.000Z	71 \| moderate	5.905 \| good	25.482 \| good	61.021 \| fine	2.008 \| good	3.268 \| good	0.133 \| good
2026-04-27T22:00:00.000Z	71 \| moderate	6.238 \| good	27.519 \| good	60.809 \| fine	1.921 \| good	3.259 \| good	0.133 \| good
2026-04-27T23:00:00.000Z	74 \| moderate	5.961 \| good	25.89 \| good	61.815 \| fine	1.833 \| good	3.251 \| good	0.133 \| good
2026-04-28T00:00:00.000Z	67 \| moderate	5.552 \| good	23.956 \| good	60.145 \| fine	1.746 \| good	3.242 \| good	0.133 \| good
2026-04-28T01:00:00.000Z	51 \| moderate	5.832 \| good	25.171 \| good	55.457 \| fine	1.974 \| good	5.181 \| good	0.139 \| good
2026-04-28T02:00:00.000Z	44 \| good	6.161 \| good	26.538 \| good	48.223 \| good	2.203 \| good	7.12 \| good	0.145 \| good
2026-04-28T03:00:00.000Z	44 \| good	6.982 \| good	31.084 \| good	47.578 \| good	2.431 \| good	9.06 \| good	0.151 \| good
2026-04-28T04:00:00.000Z	40 \| good	6.931 \| good	30.541 \| good	42.719 \| good	2.826 \| good	13.059 \| good	0.166 \| good
2026-04-28T05:00:00.000Z	37 \| good	6.438 \| good	28.332 \| good	40.244 \| good	3.22 \| good	17.058 \| good	0.18 \| good
2026-04-28T06:00:00.000Z	62 \| moderate	14.665 \| fine	17.581 \| good	29.149 \| good	3.573 \| good	21.151 \| good	0.195 \| good
2026-04-28T07:00:00.000Z	32 \| good	4.912 \| good	21.412 \| good	35.372 \| good	3.824 \| good	22.935 \| good	0.206 \| good
2026-04-28T08:00:00.000Z	33 \| good	5.589 \| good	24.398 \| good	33.607 \| good	4.034 \| good	24.813 \| good	0.218 \| good

Sierra Madre

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Sierra Madre, California air quality map: Track AQI near you

0.24ppm

How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Sierra Madre, California updated?

The air quality for Sierra Madre, California is updated every hour.

When was the worst air quality at Sierra Madre, California in the last 24 hrs?

The worst air quality in Sierra Madre, California in the last 24 hours was observed at 07:00:00 on 2026-04-25.

When was the best air quality at Sierra Madre, California in the last 24 hrs?

In the last 24 hrs, the best air quality in Sierra Madre, California was observed at 05:00:00 on 2026-04-26.

What is the current air quality in Sierra Madre, California?

The current air quality in Sierra Madre, California is 39, categorized as Good based on real-time data.

What pollutant is the most common in Sierra Madre, California?

The most common pollutant in Sierra Madre, California is O3.

What should I do if the air quality in Sierra Madre, California is poor?

If the air quality in Sierra Madre, California is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Sierra Madre, California?

The current PM_2.5 concentration at Sierra Madre, California is 5.243 μg/m³.

What is the current concentration of PM₁₀ in Sierra Madre, California?

The current PM₁₀ concentration at Sierra Madre, California is 17.139 μg/m³.

What is the current concentration of carbon monoxide (CO) in Sierra Madre, California?

The current carbon monoxide (CO) concentration at Sierra Madre, California is 0.202 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Sierra Madre, California?

The current sulfur dioxide (SO₂) concentration at Sierra Madre, California is 0.581 ppb.

What is the current concentration of ozone (O₃) in Sierra Madre, California?

The current ozone (O₃) concentration at Sierra Madre, California is 41.588 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Sierra Madre, California?

The current nitrogen dioxide (NO₂) concentration at Sierra Madre, California is 2.623 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-24T09:00:00.000Z	27 \| good	5.163 \| good	20.584 \| good	26.723 \| good	0.744 \| good	10.564 \| good	0.249 \| good
2026-04-24T10:00:00.000Z	33 \| good	6.273 \| good	23.462 \| good	23.617 \| good	0.721 \| good	11.631 \| good	0.301 \| good
2026-04-24T11:00:00.000Z	38 \| good	7.308 \| good	27.513 \| good	19.756 \| good	0.831 \| good	11.96 \| good	0.303 \| good
2026-04-24T12:00:00.000Z	33 \| good	5.906 \| good	31.585 \| good	20.341 \| good	0.648 \| good	13.299 \| good	0.325 \| good
2026-04-24T13:00:00.000Z	33 \| good	5.562 \| good	21.518 \| good	20.341 \| good	0.657 \| good	16.514 \| good	0.423 \| good
2026-04-24T14:00:00.000Z	27 \| good	4.884 \| good	18.252 \| good	19.269 \| good	0.719 \| good	17.84 \| good	0.5 \| good
2026-04-24T15:00:00.000Z	33 \| good	6.238 \| good	24.038 \| good	22.987 \| good	0.786 \| good	15.633 \| good	0.397 \| good
2026-04-24T16:00:00.000Z	33 \| good	5.828 \| good	22.395 \| good	27.589 \| good	0.853 \| good	4.111 \| good	0.297 \| good
2026-04-24T17:00:00.000Z	33 \| good	6.48 \| good	28.365 \| good	35.941 \| good	0.725 \| good	2.919 \| good	0.235 \| good
2026-04-24T18:00:00.000Z	39 \| good	5.147 \| good	32.278 \| good	42.365 \| good	0.739 \| good	4.729 \| good	0.234 \| good
2026-04-24T19:00:00.000Z	46 \| good	5.188 \| good	22.412 \| good	49.795 \| good	0.663 \| good	3.654 \| good	0.195 \| good
2026-04-24T20:00:00.000Z	50 \| good	4.799 \| good	20.855 \| good	54.064 \| good	0.64 \| good	2.938 \| good	0.224 \| good
2026-04-24T21:00:00.000Z	51 \| moderate	4.292 \| good	14.927 \| good	55.124 \| fine	0.671 \| good	2.441 \| good	0.172 \| good
2026-04-24T22:00:00.000Z	51 \| moderate	4.718 \| good	20.575 \| good	55.237 \| fine	0.68 \| good	2.479 \| good	0.182 \| good
2026-04-24T23:00:00.000Z	54 \| moderate	4.637 \| good	22.722 \| good	56.192 \| fine	0.713 \| good	2.464 \| good	0.182 \| good
2026-04-25T00:00:00.000Z	50 \| good	5.915 \| good	27.241 \| good	54.384 \| good	0.832 \| good	2.988 \| good	0.182 \| good
2026-04-25T01:00:00.000Z	49 \| good	5.562 \| good	26.718 \| good	53.218 \| good	0.813 \| good	2.757 \| good	0.197 \| good
2026-04-25T02:00:00.000Z	47 \| good	5.835 \| good	23.255 \| good	51.497 \| good	0.675 \| good	2.758 \| good	0.197 \| good
2026-04-25T03:00:00.000Z	77 \| moderate	6.456 \| good	106.796 \| fine	45.985 \| good	0.657 \| good	5.67 \| good	0.247 \| good
2026-04-25T04:00:00.000Z	40 \| good	6.488 \| good	25.934 \| good	43.313 \| good	0.588 \| good	4.431 \| good	0.241 \| good
2026-04-25T05:00:00.000Z	38 \| good	7.057 \| good	28.709 \| good	40.935 \| good	0.731 \| good	3.407 \| good	0.279 \| good
2026-04-25T06:00:00.000Z	44 \| good	7.67 \| good	26.728 \| good	40.935 \| good	0.727 \| good	3.407 \| good	0.279 \| good
2026-04-25T07:00:00.000Z	38 \| good	6.972 \| good	31.287 \| good	37.429 \| good	0.654 \| good	4.029 \| good	0.287 \| good
2026-04-25T08:00:00.000Z	52 \| moderate	10.181 \| good	33.716 \| good	32.173 \| good	0.589 \| good	4.48 \| good	0.248 \| good
2026-04-25T09:00:00.000Z	52 \| moderate	9.687 \| good	40.599 \| good	31.622 \| good	0.556 \| good	4.733 \| good	0.194 \| good
2026-04-25T10:00:00.000Z	49 \| good	8.898 \| good	32.099 \| good	29.021 \| good	0.537 \| good	6.599 \| good	0.186 \| good
2026-04-25T11:00:00.000Z	44 \| good	7.786 \| good	26.241 \| good	29.055 \| good	0.741 \| good	5.251 \| good	0.223 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.11 \| good	24.813 \| good	29.78 \| good	0.481 \| good	4.928 \| good	0.223 \| good
2026-04-25T13:00:00.000Z	38 \| good	7.142 \| good	24.644 \| good	29.78 \| good	0.496 \| good	4.928 \| good	0.223 \| good
2026-04-25T14:00:00.000Z	44 \| good	8.007 \| good	28.062 \| good	34.857 \| good	0.519 \| good	4.334 \| good	0.272 \| good
2026-04-25T15:00:00.000Z	44 \| good	7.7 \| good	26.969 \| good	37.189 \| good	0.61 \| good	5.137 \| good	0.265 \| good
2026-04-25T16:00:00.000Z	49 \| good	8.547 \| good	31.744 \| good	40.517 \| good	0.517 \| good	4.113 \| good	0.21 \| good
2026-04-25T17:00:00.000Z	41 \| good	6.349 \| good	22.104 \| good	43.584 \| good	0.476 \| good	3.505 \| good	0.233 \| good
2026-04-25T18:00:00.000Z	44 \| good	7.985 \| good	27.484 \| good	44.962 \| good	0.5 \| good	3.167 \| good	0.217 \| good
2026-04-25T19:00:00.000Z	54 \| moderate	11.211 \| good	35.413 \| good	47.498 \| good	0.483 \| good	2.541 \| good	0.217 \| good
2026-04-25T20:00:00.000Z	49 \| good	9.189 \| good	35.598 \| good	49.788 \| good	0.46 \| good	1.559 \| good	0.187 \| good
2026-04-25T21:00:00.000Z	49 \| good	8.911 \| good	36.801 \| good	50.852 \| good	0.499 \| good	1.939 \| good	0.182 \| good
2026-04-25T22:00:00.000Z	48 \| good	7.63 \| good	31.165 \| good	51.724 \| good	0.473 \| good	1.934 \| good	0.187 \| good
2026-04-25T23:00:00.000Z	46 \| good	7.277 \| good	25.011 \| good	50.275 \| good	0.487 \| good	1.491 \| good	0.182 \| good
2026-04-26T00:00:00.000Z	44 \| good	6.528 \| good	34.463 \| good	47.74 \| good	0.577 \| good	1.585 \| good	0.182 \| good
2026-04-26T01:00:00.000Z	43 \| good	5.626 \| good	17.533 \| good	46.121 \| good	0.572 \| good	2.018 \| good	0.197 \| good
2026-04-26T02:00:00.000Z	41 \| good	6.255 \| good	20.926 \| good	44.291 \| good	0.595 \| good	2.066 \| good	0.197 \| good
2026-04-26T03:00:00.000Z	40 \| good	6.127 \| good	19.035 \| good	42.589 \| good	0.559 \| good	2.37 \| good	0.197 \| good
2026-04-26T04:00:00.000Z	38 \| good	6.435 \| good	20.76 \| good	41.174 \| good	0.521 \| good	2.207 \| good	0.195 \| good
2026-04-26T05:00:00.000Z	38 \| good	6.438 \| good	20.684 \| good	41.174 \| good	0.692 \| good	1.254 \| good	0.187 \| good
2026-04-26T06:00:00.000Z	39 \| good	5.514 \| good	17.02 \| good	41.588 \| good	0.574 \| good	3.033 \| good	0.202 \| good
2026-04-26T07:00:00.000Z	39 \| good	5.243 \| good	17.139 \| good	41.588 \| good	0.581 \| good	2.623 \| good	0.202 \| good
2026-04-26T08:00:00.000Z	38 \| good	5.849 \| good	17.16 \| good	40.859 \| good	0.567 \| good	1.396 \| good	0.202 \| good
2026-04-26T08:00:00.000Z	39 \| good	5.243 \| good	17.139 \| good	41.588 \| good	0.581 \| good	2.623 \| good	0.202 \| good
2026-04-26T09:00:00.000Z	34 \| good	1.125 \| good	4.819 \| good	36.642 \| good	1.876 \| good	6.592 \| good	0.125 \| good
2026-04-26T10:00:00.000Z	35 \| good	1.191 \| good	4.82 \| good	37.566 \| good	1.892 \| good	6.15 \| good	0.123 \| good
2026-04-26T11:00:00.000Z	32 \| good	1.744 \| good	7.463 \| good	35.167 \| good	1.909 \| good	5.708 \| good	0.121 \| good
2026-04-26T12:00:00.000Z	29 \| good	1.072 \| good	4.502 \| good	31.308 \| good	1.926 \| good	5.266 \| good	0.119 \| good
2026-04-26T13:00:00.000Z	28 \| good	0.642 \| good	2.153 \| good	29.653 \| good	1.961 \| good	5.46 \| good	0.122 \| good
2026-04-26T14:00:00.000Z	30 \| good	0.75 \| good	2.938 \| good	32.297 \| good	1.995 \| good	5.655 \| good	0.125 \| good
2026-04-26T15:00:00.000Z	36 \| good	1.225 \| good	4.97 \| good	38.69 \| good	2.03 \| good	5.85 \| good	0.128 \| good
2026-04-26T16:00:00.000Z	40 \| good	1.179 \| good	4.964 \| good	42.952 \| good	1.842 \| good	5.117 \| good	0.127 \| good
2026-04-26T17:00:00.000Z	42 \| good	1.511 \| good	6.181 \| good	45.141 \| good	1.654 \| good	4.384 \| good	0.126 \| good
2026-04-26T18:00:00.000Z	46 \| good	1.271 \| good	5.181 \| good	49.995 \| good	1.466 \| good	3.651 \| good	0.125 \| good
2026-04-26T19:00:00.000Z	50 \| good	1.563 \| good	6.237 \| good	53.727 \| good	1.382 \| good	3.249 \| good	0.124 \| good
2026-04-26T20:00:00.000Z	54 \| moderate	2.396 \| good	9.928 \| good	55.995 \| fine	1.298 \| good	2.846 \| good	0.123 \| good
2026-04-26T21:00:00.000Z	50 \| good	1.865 \| good	7.983 \| good	53.97 \| good	1.214 \| good	2.444 \| good	0.121 \| good
2026-04-26T22:00:00.000Z	48 \| good	1.985 \| good	8.237 \| good	52.386 \| good	1.208 \| good	2.602 \| good	0.122 \| good
2026-04-26T23:00:00.000Z	46 \| good	1.479 \| good	6.201 \| good	50.119 \| good	1.203 \| good	2.761 \| good	0.123 \| good
2026-04-27T00:00:00.000Z	45 \| good	1.113 \| good	4.361 \| good	49.288 \| good	1.197 \| good	2.919 \| good	0.123 \| good
2026-04-27T01:00:00.000Z	44 \| good	1.341 \| good	5.309 \| good	48.137 \| good	1.317 \| good	4.014 \| good	0.126 \| good
2026-04-27T02:00:00.000Z	40 \| good	2.047 \| good	8.358 \| good	43.483 \| good	1.436 \| good	5.109 \| good	0.129 \| good
2026-04-27T03:00:00.000Z	41 \| good	2.523 \| good	10.148 \| good	44.354 \| good	1.556 \| good	6.203 \| good	0.131 \| good
2026-04-27T04:00:00.000Z	38 \| good	2.665 \| good	11.077 \| good	41.141 \| good	1.686 \| good	6.747 \| good	0.132 \| good
2026-04-27T05:00:00.000Z	35 \| good	3.488 \| good	15.157 \| good	37.984 \| good	1.816 \| good	7.291 \| good	0.133 \| good
2026-04-27T06:00:00.000Z	32 \| good	2.178 \| good	9.078 \| good	35.178 \| good	1.946 \| good	7.835 \| good	0.134 \| good
2026-04-27T07:00:00.000Z	32 \| good	1.732 \| good	7.114 \| good	35.213 \| good	1.985 \| good	7.478 \| good	0.133 \| good
2026-04-27T08:00:00.000Z	31 \| good	1.954 \| good	8.134 \| good	33.622 \| good	2.024 \| good	7.12 \| good	0.132 \| good
2026-04-27T09:00:00.000Z	27 \| good	2.111 \| good	8.238 \| good	28.605 \| good	2.063 \| good	6.762 \| good	0.131 \| good
2026-04-27T10:00:00.000Z	24 \| good	1.982 \| good	7.962 \| good	26.457 \| good	2.247 \| good	7.234 \| good	0.131 \| good
2026-04-27T11:00:00.000Z	23 \| good	0.757 \| good	2.962 \| good	25.499 \| good	2.431 \| good	7.705 \| good	0.132 \| good
2026-04-27T12:00:00.000Z	27 \| good	1.174 \| good	4.824 \| good	29.41 \| good	2.615 \| good	8.176 \| good	0.133 \| good
2026-04-27T13:00:00.000Z	24 \| good	1.304 \| good	5.361 \| good	25.666 \| good	2.679 \| good	7.822 \| good	0.135 \| good
2026-04-27T14:00:00.000Z	28 \| good	1.317 \| good	5.328 \| good	30.265 \| good	2.744 \| good	7.468 \| good	0.137 \| good
2026-04-27T15:00:00.000Z	36 \| good	1.729 \| good	7.141 \| good	39.239 \| good	2.808 \| good	7.114 \| good	0.139 \| good
2026-04-27T16:00:00.000Z	43 \| good	2.012 \| good	8.147 \| good	45.88 \| good	2.655 \| good	6.287 \| good	0.138 \| good
2026-04-27T17:00:00.000Z	46 \| good	2.319 \| good	9.31 \| good	49.588 \| good	2.502 \| good	5.46 \| good	0.137 \| good
2026-04-27T18:00:00.000Z	50 \| good	3.285 \| good	14.238 \| good	54.178 \| good	2.349 \| good	4.633 \| good	0.136 \| good
2026-04-27T19:00:00.000Z	58 \| moderate	4.936 \| good	21.213 \| good	57.401 \| fine	2.235 \| good	4.178 \| good	0.135 \| good
2026-04-27T20:00:00.000Z	67 \| moderate	5.999 \| good	27.008 \| good	59.657 \| fine	2.122 \| good	3.723 \| good	0.134 \| good
2026-04-27T21:00:00.000Z	71 \| moderate	5.905 \| good	25.482 \| good	61.021 \| fine	2.008 \| good	3.268 \| good	0.133 \| good
2026-04-27T22:00:00.000Z	71 \| moderate	6.238 \| good	27.519 \| good	60.809 \| fine	1.921 \| good	3.259 \| good	0.133 \| good
2026-04-27T23:00:00.000Z	74 \| moderate	5.961 \| good	25.89 \| good	61.815 \| fine	1.833 \| good	3.251 \| good	0.133 \| good
2026-04-28T00:00:00.000Z	67 \| moderate	5.552 \| good	23.956 \| good	60.145 \| fine	1.746 \| good	3.242 \| good	0.133 \| good
2026-04-28T01:00:00.000Z	51 \| moderate	5.832 \| good	25.171 \| good	55.457 \| fine	1.974 \| good	5.181 \| good	0.139 \| good
2026-04-28T02:00:00.000Z	44 \| good	6.161 \| good	26.538 \| good	48.223 \| good	2.203 \| good	7.12 \| good	0.145 \| good
2026-04-28T03:00:00.000Z	44 \| good	6.982 \| good	31.084 \| good	47.578 \| good	2.431 \| good	9.06 \| good	0.151 \| good
2026-04-28T04:00:00.000Z	40 \| good	6.931 \| good	30.541 \| good	42.719 \| good	2.826 \| good	13.059 \| good	0.166 \| good
2026-04-28T05:00:00.000Z	37 \| good	6.438 \| good	28.332 \| good	40.244 \| good	3.22 \| good	17.058 \| good	0.18 \| good
2026-04-28T06:00:00.000Z	62 \| moderate	14.665 \| fine	17.581 \| good	29.149 \| good	3.573 \| good	21.151 \| good	0.195 \| good
2026-04-28T07:00:00.000Z	32 \| good	4.912 \| good	21.412 \| good	35.372 \| good	3.824 \| good	22.935 \| good	0.206 \| good
2026-04-28T08:00:00.000Z	33 \| good	5.589 \| good	24.398 \| good	33.607 \| good	4.034 \| good	24.813 \| good	0.218 \| good

Sierra Madre, California live air quality index now

Major air pollutants in Sierra Madre, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Arcadia, California

Monrovia, California

East San Gabriel, California

Temple City, California

San Marino, California

Duarte, California

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Frequently asked questions

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What is the current concentration of PM2.5 in Sierra Madre, California?

What is the current concentration of PM10 in Sierra Madre, California?

What is the current concentration of carbon monoxide (CO) in Sierra Madre, California?

What is the current concentration of sulfur dioxide (SO2) in Sierra Madre, California?

What is the current concentration of ozone (O3) in Sierra Madre, California?

What is the current concentration of nitrogen dioxide (NO2) in Sierra Madre, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Sierra Madre, California?

What is the current concentration of PM₁₀ in Sierra Madre, California?

What is the current concentration of sulfur dioxide (SO₂) in Sierra Madre, California?

What is the current concentration of ozone (O₃) in Sierra Madre, California?

What is the current concentration of nitrogen dioxide (NO₂) in Sierra Madre, California?