What is the PM10 level in Walnut, California at the moment?

The PM10 concentration in Walnut, California is 16.84 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Walnut, California at the moment?

Currently, Walnut, California has a sulfur dioxide (SO2) concentration of 0.245 ppb.

What is the ozone (O3) level in Walnut, California at the moment?

The current ozone (O3) level in Walnut, California at the moment is 9.727 ppm.

What is the nitrogen dioxide (NO2) level in Walnut, California at the moment?

Nitrogen dioxide (NO2) level in Walnut, California at the moment is 12.301 ppb.

Live air quality index in Walnut, California today

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

Stay updated with real-time air quality in Walnut, 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

Walnut, California

Last updated: ... (Local time)

Major air pollutants in Walnut, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.96 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.08 μg/m³

155

255

425

605+

Ozone (O₃)

16.87 ppb

201

201+

Sulfur Dioxide (SO₂)

0.20 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.93 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Walnut, California

Get Live Pollen Counts

Walnut, California

Scroll To Air Quality Map

Track live Walnut, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-24T13:00:00.000Z	27 \| good	5.468 \| good	19.812 \| good	10.052 \| good	0.267 \| good	12.888 \| good	0.252 \| good
2025-07-24T14:00:00.000Z	38 \| good	7.062 \| good	32.43 \| good	10.447 \| good	0.306 \| good	13.454 \| good	0.275 \| good
2025-07-24T15:00:00.000Z	38 \| good	7.41 \| good	26.544 \| good	13.6 \| good	0.438 \| good	13.114 \| good	0.292 \| good
2025-07-24T16:00:00.000Z	49 \| good	9.066 \| good	38.214 \| good	17.825 \| good	0.455 \| good	10.403 \| good	0.202 \| good
2025-07-24T17:00:00.000Z	49 \| good	9.25 \| good	29.152 \| good	20.923 \| good	0.418 \| good	9.96 \| good	0.175 \| good
2025-07-24T18:00:00.000Z	56 \| moderate	11.766 \| good	36.743 \| good	25.586 \| good	0.447 \| good	7.85 \| good	0.165 \| good
2025-07-24T19:00:00.000Z	38 \| good	6.599 \| good	23.928 \| good	28.955 \| good	0.47 \| good	7.45 \| good	0.187 \| good
2025-07-24T20:00:00.000Z	38 \| good	7.007 \| good	28.351 \| good	32.599 \| good	0.561 \| good	6.923 \| good	0.187 \| good
2025-07-24T21:00:00.000Z	42 \| good	6.831 \| good	25.647 \| good	45.302 \| good	0.466 \| good	5.796 \| good	0.21 \| good
2025-07-24T22:00:00.000Z	48 \| good	6.576 \| good	29.444 \| good	51.682 \| good	0.514 \| good	5.081 \| good	0.198 \| good
2025-07-24T23:00:00.000Z	45 \| good	6.882 \| good	25.707 \| good	49.368 \| good	0.443 \| good	6.426 \| good	0.165 \| good
2025-07-25T00:00:00.000Z	44 \| good	7.892 \| good	26.908 \| good	47.623 \| good	0.485 \| good	5.976 \| good	0.165 \| good
2025-07-25T01:00:00.000Z	44 \| good	7.643 \| good	20.998 \| good	42.127 \| good	0.463 \| good	5.698 \| good	0.193 \| good
2025-07-25T02:00:00.000Z	35 \| good	5.701 \| good	21.317 \| good	38.273 \| good	0.424 \| good	6.523 \| good	0.165 \| good
2025-07-25T03:00:00.000Z	31 \| good	4.451 \| good	18.958 \| good	33.032 \| good	0.474 \| good	8.761 \| good	0.165 \| good
2025-07-25T04:00:00.000Z	26 \| good	4.47 \| good	28.341 \| good	27.579 \| good	0.443 \| good	11.442 \| good	0.165 \| good
2025-07-25T05:00:00.000Z	22 \| good	4.156 \| good	15.343 \| good	21.215 \| good	0.466 \| good	12.325 \| good	0.229 \| good
2025-07-25T06:00:00.000Z	27 \| good	4.52 \| good	13.216 \| good	18.129 \| good	0.367 \| good	9.719 \| good	0.234 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.074 \| good	14.304 \| good	16.238 \| good	0.417 \| good	8.05 \| good	0.183 \| good
2025-07-25T08:00:00.000Z	16 \| good	3.27 \| good	11.835 \| good	14.183 \| good	0.372 \| good	8.038 \| good	0.183 \| good
2025-07-25T09:00:00.000Z	22 \| good	3.733 \| good	13.374 \| good	12.348 \| good	0.273 \| good	9.722 \| good	0.223 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.444 \| good	13.333 \| good	12.326 \| good	0.323 \| good	10.491 \| good	0.218 \| good
2025-07-25T11:00:00.000Z	27 \| good	5.212 \| good	13.069 \| good	11.294 \| good	0.267 \| good	10.544 \| good	0.182 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.391 \| good	14.485 \| good	10.232 \| good	0.273 \| good	12.255 \| good	0.148 \| good
2025-07-25T13:00:00.000Z	22 \| good	4.089 \| good	16.84 \| good	9.727 \| good	0.245 \| good	12.301 \| good	0.239 \| good
2025-07-25T14:00:00.000Z	22 \| good	4.297 \| good	18.849 \| good	8.774 \| good	0.291 \| good	12.913 \| good	0.202 \| good
2025-07-25T15:00:00.000Z	22 \| good	4.423 \| good	13.744 \| good	12.183 \| good	0.406 \| good	9.058 \| good	0.192 \| good
2025-07-25T16:00:00.000Z	27 \| good	4.698 \| good	19.749 \| good	14.495 \| good	0.362 \| good	7.56 \| good	0.182 \| good
2025-07-25T17:00:00.000Z	27 \| good	5.334 \| good	17.704 \| good	15.782 \| good	0.341 \| good	7.736 \| good	0.182 \| good
2025-07-25T18:00:00.000Z	27 \| good	5.217 \| good	19.002 \| good	23.575 \| good	0.265 \| good	5.353 \| good	0.165 \| good
2025-07-25T19:00:00.000Z	33 \| good	5.618 \| good	20.597 \| good	28.306 \| good	0.236 \| good	5.14 \| good	0.193 \| good
2025-07-25T20:00:00.000Z	33 \| good	6.263 \| good	20.93 \| good	31.269 \| good	0.301 \| good	4.614 \| good	0.177 \| good
2025-07-25T21:00:00.000Z	45 \| good	5.037 \| good	22.947 \| good	49.432 \| good	0.312 \| good	5.134 \| good	0.196 \| good
2025-07-25T22:00:00.000Z	34 \| good	6.244 \| good	24.108 \| good	36.988 \| good	0.252 \| good	3.81 \| good	0.187 \| good
2025-07-25T23:00:00.000Z	34 \| good	6.226 \| good	25.981 \| good	37.379 \| good	0.266 \| good	3.554 \| good	0.177 \| good
2025-07-26T00:00:00.000Z	34 \| good	5.357 \| good	27.58 \| good	37.428 \| good	0.359 \| good	3.796 \| good	0.177 \| good
2025-07-26T01:00:00.000Z	33 \| good	5.788 \| good	21.141 \| good	35.99 \| good	0.417 \| good	4.145 \| good	0.193 \| good
2025-07-26T02:00:00.000Z	33 \| good	6.054 \| good	24.488 \| good	33.689 \| good	0.399 \| good	5.183 \| good	0.165 \| good
2025-07-26T03:00:00.000Z	33 \| good	6.105 \| good	24.419 \| good	29.873 \| good	0.477 \| good	6.492 \| good	0.165 \| good
2025-07-26T04:00:00.000Z	28 \| good	4.7 \| good	21.848 \| good	29.873 \| good	0.431 \| good	7.987 \| good	0.165 \| good
2025-07-26T05:00:00.000Z	25 \| good	4.302 \| good	14.542 \| good	26.515 \| good	0.367 \| good	8.406 \| good	0.165 \| good
2025-07-26T06:00:00.000Z	22 \| good	4.262 \| good	16.82 \| good	21.817 \| good	0.358 \| good	9.324 \| good	0.175 \| good
2025-07-26T07:00:00.000Z	27 \| good	5.144 \| good	16.177 \| good	18.85 \| good	0.372 \| good	9.449 \| good	0.203 \| good
2025-07-26T08:00:00.000Z	27 \| good	4.613 \| good	16.084 \| good	16.426 \| good	0.248 \| good	9.445 \| good	0.165 \| good
2025-07-26T09:00:00.000Z	22 \| good	4.212 \| good	14.367 \| good	14.191 \| good	0.268 \| good	8.071 \| good	0.165 \| good
2025-07-26T10:00:00.000Z	22 \| good	4.184 \| good	11.834 \| good	12.951 \| good	0.279 \| good	8.534 \| good	0.187 \| good
2025-07-26T11:00:00.000Z	22 \| good	4.39 \| good	15.737 \| good	14.781 \| good	0.203 \| good	6.906 \| good	0.187 \| good
2025-07-26T12:00:00.000Z	22 \| good	3.956 \| good	13.081 \| good	16.869 \| good	0.197 \| good	5.928 \| good	0.187 \| good
2025-07-26T12:00:00.000Z	22 \| good	3.956 \| good	13.081 \| good	16.869 \| good	0.197 \| good	5.928 \| good	0.187 \| good
2025-07-25T14:00:00.000Z	33 \| good	5.903 \| good	25.697 \| good	13.87 \| good	5.917 \| good	16.579 \| good	0.183 \| good
2025-07-25T15:00:00.000Z	38 \| good	7.243 \| good	31.942 \| good	17.311 \| good	6.337 \| good	14.281 \| good	0.179 \| good
2025-07-25T16:00:00.000Z	44 \| good	8.051 \| good	35.149 \| good	21.012 \| good	5.852 \| good	12.69 \| good	0.175 \| good
2025-07-25T17:00:00.000Z	38 \| good	7.124 \| good	31.389 \| good	26.58 \| good	5.367 \| good	11.099 \| good	0.171 \| good
2025-07-25T18:00:00.000Z	31 \| good	4.763 \| good	20.593 \| good	32.762 \| good	4.882 \| good	9.507 \| good	0.168 \| good
2025-07-25T19:00:00.000Z	37 \| good	4.063 \| good	17.681 \| good	40.303 \| good	4.488 \| good	8.083 \| good	0.161 \| good
2025-07-25T20:00:00.000Z	43 \| good	6.348 \| good	28.104 \| good	46.148 \| good	4.094 \| good	6.659 \| good	0.154 \| good
2025-07-25T21:00:00.000Z	45 \| good	5.617 \| good	24.193 \| good	48.567 \| good	3.701 \| good	5.235 \| good	0.147 \| good
2025-07-25T22:00:00.000Z	45 \| good	7.455 \| good	32.894 \| good	48.558 \| good	3.569 \| good	4.959 \| good	0.145 \| good
2025-07-25T23:00:00.000Z	42 \| good	6.911 \| good	30.466 \| good	45.096 \| good	3.437 \| good	4.684 \| good	0.143 \| good
2025-07-26T00:00:00.000Z	36 \| good	3.975 \| good	17.519 \| good	39.415 \| good	3.305 \| good	4.408 \| good	0.141 \| good
2025-07-26T01:00:00.000Z	31 \| good	2.417 \| good	9.897 \| good	32.782 \| good	3.412 \| good	6.358 \| good	0.146 \| good
2025-07-26T02:00:00.000Z	26 \| good	3.316 \| good	14.666 \| good	28.2 \| good	3.518 \| good	8.308 \| good	0.151 \| good
2025-07-26T03:00:00.000Z	21 \| good	3.316 \| good	14.548 \| good	22.717 \| good	3.624 \| good	10.258 \| good	0.156 \| good
2025-07-26T04:00:00.000Z	19 \| good	1.761 \| good	7.127 \| good	20.165 \| good	3.856 \| good	12.218 \| good	0.161 \| good
2025-07-26T05:00:00.000Z	17 \| good	1.89 \| good	7.769 \| good	18.092 \| good	4.088 \| good	14.179 \| good	0.166 \| good
2025-07-26T06:00:00.000Z	16 \| good	2.01 \| good	8.223 \| good	17.164 \| good	4.321 \| good	16.14 \| good	0.171 \| good
2025-07-26T07:00:00.000Z	16 \| good	3.22 \| good	13.759 \| good	16.165 \| good	4.42 \| good	17.485 \| good	0.176 \| good
2025-07-26T08:00:00.000Z	18 \| good	2.898 \| good	12.053 \| good	14.49 \| good	4.52 \| good	18.829 \| good	0.181 \| good
2025-07-26T09:00:00.000Z	22 \| good	4.038 \| good	17.81 \| good	13.827 \| good	4.619 \| good	20.173 \| good	0.186 \| good
2025-07-26T10:00:00.000Z	27 \| good	4.53 \| good	19.905 \| good	14.877 \| good	4.787 \| good	21.014 \| good	0.189 \| good
2025-07-26T11:00:00.000Z	27 \| good	4.884 \| good	21.078 \| good	15.644 \| good	4.955 \| good	21.856 \| good	0.191 \| good
2025-07-26T12:00:00.000Z	27 \| good	4.577 \| good	20.054 \| good	13.632 \| good	5.123 \| good	22.698 \| good	0.194 \| good
2025-07-26T13:00:00.000Z	27 \| good	5.35 \| good	23.251 \| good	16.243 \| good	5.342 \| good	19.85 \| good	0.194 \| good
2025-07-26T14:00:00.000Z	27 \| good	4.831 \| good	20.81 \| good	18.433 \| good	5.561 \| good	17.001 \| good	0.195 \| good
2025-07-26T15:00:00.000Z	33 \| good	6.062 \| good	26.7 \| good	21.937 \| good	5.78 \| good	14.153 \| good	0.195 \| good
2025-07-26T16:00:00.000Z	38 \| good	6.805 \| good	30.201 \| good	25.498 \| good	5.402 \| good	12.406 \| good	0.186 \| good
2025-07-26T17:00:00.000Z	33 \| good	5.899 \| good	26.207 \| good	30.906 \| good	5.025 \| good	10.659 \| good	0.177 \| good
2025-07-26T18:00:00.000Z	34 \| good	4.262 \| good	18.824 \| good	36.588 \| good	4.647 \| good	8.912 \| good	0.168 \| good
2025-07-26T19:00:00.000Z	36 \| good	2.581 \| good	10.827 \| good	39.24 \| good	4.252 \| good	7.584 \| good	0.161 \| good
2025-07-26T20:00:00.000Z	40 \| good	5.738 \| good	24.562 \| good	42.55 \| good	3.857 \| good	6.257 \| good	0.154 \| good
2025-07-26T21:00:00.000Z	45 \| good	5.247 \| good	22.786 \| good	48.829 \| good	3.461 \| good	4.929 \| good	0.147 \| good
2025-07-26T22:00:00.000Z	47 \| good	6.342 \| good	28.284 \| good	51.347 \| good	3.453 \| good	4.791 \| good	0.145 \| good
2025-07-26T23:00:00.000Z	44 \| good	6.761 \| good	30.106 \| good	47.839 \| good	3.445 \| good	4.653 \| good	0.143 \| good
2025-07-27T00:00:00.000Z	39 \| good	4.922 \| good	21.241 \| good	41.65 \| good	3.437 \| good	4.515 \| good	0.14 \| good
2025-07-27T01:00:00.000Z	33 \| good	3.512 \| good	15.335 \| good	35.985 \| good	3.535 \| good	6.507 \| good	0.144 \| good
2025-07-27T02:00:00.000Z	30 \| good	3.807 \| good	16.757 \| good	31.526 \| good	3.634 \| good	8.498 \| good	0.147 \| good
2025-07-27T03:00:00.000Z	22 \| good	4.197 \| good	18.355 \| good	24.337 \| good	3.732 \| good	10.49 \| good	0.151 \| good
2025-07-27T04:00:00.000Z	21 \| good	2.399 \| good	9.584 \| good	22.767 \| good	3.968 \| good	12.761 \| good	0.156 \| good
2025-07-27T05:00:00.000Z	22 \| good	3.829 \| good	16.96 \| good	21.927 \| good	4.204 \| good	15.031 \| good	0.161 \| good
2025-07-27T06:00:00.000Z	22 \| good	4.136 \| good	18.209 \| good	20.095 \| good	4.44 \| good	17.302 \| good	0.167 \| good
2025-07-27T07:00:00.000Z	27 \| good	4.887 \| good	21.086 \| good	19.057 \| good	4.523 \| good	19.034 \| good	0.175 \| good
2025-07-27T08:00:00.000Z	22 \| good	3.799 \| good	16.474 \| good	18.167 \| good	4.607 \| good	20.766 \| good	0.184 \| good
2025-07-27T09:00:00.000Z	27 \| good	4.962 \| good	21.459 \| good	19.064 \| good	4.69 \| good	22.498 \| good	0.192 \| good
2025-07-27T10:00:00.000Z	33 \| good	5.723 \| good	25.424 \| good	20.69 \| good	4.58 \| good	22.284 \| good	0.193 \| good
2025-07-27T11:00:00.000Z	27 \| good	4.92 \| good	21.206 \| good	19.967 \| good	4.471 \| good	22.07 \| good	0.194 \| good
2025-07-27T12:00:00.000Z	27 \| good	5.16 \| good	22.546 \| good	16.448 \| good	4.361 \| good	21.856 \| good	0.195 \| good
2025-07-27T13:00:00.000Z	38 \| good	7.39 \| good	32.687 \| good	18.064 \| good	4.785 \| good	19.027 \| good	0.19 \| good

Walnut

Get reliable air quality data to drive your business

Walnut, California air quality map: Stay updated on AQI near you

0.13ppm

How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Walnut, California?

The air quality information for Walnut, California is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Walnut, California at its worst?

In the past 24 hours, the air quality in Walnut, California was at its worst at 06:00:00 on 2025-07-24.

When did Walnut, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Walnut, California was observed at 08:00:00 on 2025-07-25.

What is the AQI in Walnut, California right now?

As of now, the AQI in Walnut, California is 22, indicating Good conditions.

What is the most common type of pollution in Walnut, California?

Walnut, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in Walnut, California?

Poor air quality in Walnut, California means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Walnut, California at the moment?

PM_2.5 levels in Walnut, California are currently 4.089 μg/m³.

What is the PM₁₀ level in Walnut, California at the moment?

The PM₁₀ concentration in Walnut, California is 16.84 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Walnut, California at the moment?

The current carbon monoxide (CO) concentration in Walnut, California is 0.239 ppm.

What is the sulfur dioxide (SO₂) level in Walnut, California at the moment?

Currently, Walnut, California has a sulfur dioxide (SO₂) concentration of 0.245 ppb.

What is the ozone (O₃) level in Walnut, California at the moment?

The current ozone (O₃) level in Walnut, California at the moment is 9.727 ppm.

What is the nitrogen dioxide (NO₂) level in Walnut, California at the moment?

Nitrogen dioxide (NO₂) level in Walnut, California at the moment is 12.301 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-24T13:00:00.000Z	27 \| good	5.468 \| good	19.812 \| good	10.052 \| good	0.267 \| good	12.888 \| good	0.252 \| good
2025-07-24T14:00:00.000Z	38 \| good	7.062 \| good	32.43 \| good	10.447 \| good	0.306 \| good	13.454 \| good	0.275 \| good
2025-07-24T15:00:00.000Z	38 \| good	7.41 \| good	26.544 \| good	13.6 \| good	0.438 \| good	13.114 \| good	0.292 \| good
2025-07-24T16:00:00.000Z	49 \| good	9.066 \| good	38.214 \| good	17.825 \| good	0.455 \| good	10.403 \| good	0.202 \| good
2025-07-24T17:00:00.000Z	49 \| good	9.25 \| good	29.152 \| good	20.923 \| good	0.418 \| good	9.96 \| good	0.175 \| good
2025-07-24T18:00:00.000Z	56 \| moderate	11.766 \| good	36.743 \| good	25.586 \| good	0.447 \| good	7.85 \| good	0.165 \| good
2025-07-24T19:00:00.000Z	38 \| good	6.599 \| good	23.928 \| good	28.955 \| good	0.47 \| good	7.45 \| good	0.187 \| good
2025-07-24T20:00:00.000Z	38 \| good	7.007 \| good	28.351 \| good	32.599 \| good	0.561 \| good	6.923 \| good	0.187 \| good
2025-07-24T21:00:00.000Z	42 \| good	6.831 \| good	25.647 \| good	45.302 \| good	0.466 \| good	5.796 \| good	0.21 \| good
2025-07-24T22:00:00.000Z	48 \| good	6.576 \| good	29.444 \| good	51.682 \| good	0.514 \| good	5.081 \| good	0.198 \| good
2025-07-24T23:00:00.000Z	45 \| good	6.882 \| good	25.707 \| good	49.368 \| good	0.443 \| good	6.426 \| good	0.165 \| good
2025-07-25T00:00:00.000Z	44 \| good	7.892 \| good	26.908 \| good	47.623 \| good	0.485 \| good	5.976 \| good	0.165 \| good
2025-07-25T01:00:00.000Z	44 \| good	7.643 \| good	20.998 \| good	42.127 \| good	0.463 \| good	5.698 \| good	0.193 \| good
2025-07-25T02:00:00.000Z	35 \| good	5.701 \| good	21.317 \| good	38.273 \| good	0.424 \| good	6.523 \| good	0.165 \| good
2025-07-25T03:00:00.000Z	31 \| good	4.451 \| good	18.958 \| good	33.032 \| good	0.474 \| good	8.761 \| good	0.165 \| good
2025-07-25T04:00:00.000Z	26 \| good	4.47 \| good	28.341 \| good	27.579 \| good	0.443 \| good	11.442 \| good	0.165 \| good
2025-07-25T05:00:00.000Z	22 \| good	4.156 \| good	15.343 \| good	21.215 \| good	0.466 \| good	12.325 \| good	0.229 \| good
2025-07-25T06:00:00.000Z	27 \| good	4.52 \| good	13.216 \| good	18.129 \| good	0.367 \| good	9.719 \| good	0.234 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.074 \| good	14.304 \| good	16.238 \| good	0.417 \| good	8.05 \| good	0.183 \| good
2025-07-25T08:00:00.000Z	16 \| good	3.27 \| good	11.835 \| good	14.183 \| good	0.372 \| good	8.038 \| good	0.183 \| good
2025-07-25T09:00:00.000Z	22 \| good	3.733 \| good	13.374 \| good	12.348 \| good	0.273 \| good	9.722 \| good	0.223 \| good
2025-07-25T10:00:00.000Z	22 \| good	4.444 \| good	13.333 \| good	12.326 \| good	0.323 \| good	10.491 \| good	0.218 \| good
2025-07-25T11:00:00.000Z	27 \| good	5.212 \| good	13.069 \| good	11.294 \| good	0.267 \| good	10.544 \| good	0.182 \| good
2025-07-25T12:00:00.000Z	27 \| good	5.391 \| good	14.485 \| good	10.232 \| good	0.273 \| good	12.255 \| good	0.148 \| good
2025-07-25T13:00:00.000Z	22 \| good	4.089 \| good	16.84 \| good	9.727 \| good	0.245 \| good	12.301 \| good	0.239 \| good
2025-07-25T14:00:00.000Z	22 \| good	4.297 \| good	18.849 \| good	8.774 \| good	0.291 \| good	12.913 \| good	0.202 \| good
2025-07-25T15:00:00.000Z	22 \| good	4.423 \| good	13.744 \| good	12.183 \| good	0.406 \| good	9.058 \| good	0.192 \| good
2025-07-25T16:00:00.000Z	27 \| good	4.698 \| good	19.749 \| good	14.495 \| good	0.362 \| good	7.56 \| good	0.182 \| good
2025-07-25T17:00:00.000Z	27 \| good	5.334 \| good	17.704 \| good	15.782 \| good	0.341 \| good	7.736 \| good	0.182 \| good
2025-07-25T18:00:00.000Z	27 \| good	5.217 \| good	19.002 \| good	23.575 \| good	0.265 \| good	5.353 \| good	0.165 \| good
2025-07-25T19:00:00.000Z	33 \| good	5.618 \| good	20.597 \| good	28.306 \| good	0.236 \| good	5.14 \| good	0.193 \| good
2025-07-25T20:00:00.000Z	33 \| good	6.263 \| good	20.93 \| good	31.269 \| good	0.301 \| good	4.614 \| good	0.177 \| good
2025-07-25T21:00:00.000Z	45 \| good	5.037 \| good	22.947 \| good	49.432 \| good	0.312 \| good	5.134 \| good	0.196 \| good
2025-07-25T22:00:00.000Z	34 \| good	6.244 \| good	24.108 \| good	36.988 \| good	0.252 \| good	3.81 \| good	0.187 \| good
2025-07-25T23:00:00.000Z	34 \| good	6.226 \| good	25.981 \| good	37.379 \| good	0.266 \| good	3.554 \| good	0.177 \| good
2025-07-26T00:00:00.000Z	34 \| good	5.357 \| good	27.58 \| good	37.428 \| good	0.359 \| good	3.796 \| good	0.177 \| good
2025-07-26T01:00:00.000Z	33 \| good	5.788 \| good	21.141 \| good	35.99 \| good	0.417 \| good	4.145 \| good	0.193 \| good
2025-07-26T02:00:00.000Z	33 \| good	6.054 \| good	24.488 \| good	33.689 \| good	0.399 \| good	5.183 \| good	0.165 \| good
2025-07-26T03:00:00.000Z	33 \| good	6.105 \| good	24.419 \| good	29.873 \| good	0.477 \| good	6.492 \| good	0.165 \| good
2025-07-26T04:00:00.000Z	28 \| good	4.7 \| good	21.848 \| good	29.873 \| good	0.431 \| good	7.987 \| good	0.165 \| good
2025-07-26T05:00:00.000Z	25 \| good	4.302 \| good	14.542 \| good	26.515 \| good	0.367 \| good	8.406 \| good	0.165 \| good
2025-07-26T06:00:00.000Z	22 \| good	4.262 \| good	16.82 \| good	21.817 \| good	0.358 \| good	9.324 \| good	0.175 \| good
2025-07-26T07:00:00.000Z	27 \| good	5.144 \| good	16.177 \| good	18.85 \| good	0.372 \| good	9.449 \| good	0.203 \| good
2025-07-26T08:00:00.000Z	27 \| good	4.613 \| good	16.084 \| good	16.426 \| good	0.248 \| good	9.445 \| good	0.165 \| good
2025-07-26T09:00:00.000Z	22 \| good	4.212 \| good	14.367 \| good	14.191 \| good	0.268 \| good	8.071 \| good	0.165 \| good
2025-07-26T10:00:00.000Z	22 \| good	4.184 \| good	11.834 \| good	12.951 \| good	0.279 \| good	8.534 \| good	0.187 \| good
2025-07-26T11:00:00.000Z	22 \| good	4.39 \| good	15.737 \| good	14.781 \| good	0.203 \| good	6.906 \| good	0.187 \| good
2025-07-26T12:00:00.000Z	22 \| good	3.956 \| good	13.081 \| good	16.869 \| good	0.197 \| good	5.928 \| good	0.187 \| good
2025-07-26T12:00:00.000Z	22 \| good	3.956 \| good	13.081 \| good	16.869 \| good	0.197 \| good	5.928 \| good	0.187 \| good
2025-07-25T14:00:00.000Z	33 \| good	5.903 \| good	25.697 \| good	13.87 \| good	5.917 \| good	16.579 \| good	0.183 \| good
2025-07-25T15:00:00.000Z	38 \| good	7.243 \| good	31.942 \| good	17.311 \| good	6.337 \| good	14.281 \| good	0.179 \| good
2025-07-25T16:00:00.000Z	44 \| good	8.051 \| good	35.149 \| good	21.012 \| good	5.852 \| good	12.69 \| good	0.175 \| good
2025-07-25T17:00:00.000Z	38 \| good	7.124 \| good	31.389 \| good	26.58 \| good	5.367 \| good	11.099 \| good	0.171 \| good
2025-07-25T18:00:00.000Z	31 \| good	4.763 \| good	20.593 \| good	32.762 \| good	4.882 \| good	9.507 \| good	0.168 \| good
2025-07-25T19:00:00.000Z	37 \| good	4.063 \| good	17.681 \| good	40.303 \| good	4.488 \| good	8.083 \| good	0.161 \| good
2025-07-25T20:00:00.000Z	43 \| good	6.348 \| good	28.104 \| good	46.148 \| good	4.094 \| good	6.659 \| good	0.154 \| good
2025-07-25T21:00:00.000Z	45 \| good	5.617 \| good	24.193 \| good	48.567 \| good	3.701 \| good	5.235 \| good	0.147 \| good
2025-07-25T22:00:00.000Z	45 \| good	7.455 \| good	32.894 \| good	48.558 \| good	3.569 \| good	4.959 \| good	0.145 \| good
2025-07-25T23:00:00.000Z	42 \| good	6.911 \| good	30.466 \| good	45.096 \| good	3.437 \| good	4.684 \| good	0.143 \| good
2025-07-26T00:00:00.000Z	36 \| good	3.975 \| good	17.519 \| good	39.415 \| good	3.305 \| good	4.408 \| good	0.141 \| good
2025-07-26T01:00:00.000Z	31 \| good	2.417 \| good	9.897 \| good	32.782 \| good	3.412 \| good	6.358 \| good	0.146 \| good
2025-07-26T02:00:00.000Z	26 \| good	3.316 \| good	14.666 \| good	28.2 \| good	3.518 \| good	8.308 \| good	0.151 \| good
2025-07-26T03:00:00.000Z	21 \| good	3.316 \| good	14.548 \| good	22.717 \| good	3.624 \| good	10.258 \| good	0.156 \| good
2025-07-26T04:00:00.000Z	19 \| good	1.761 \| good	7.127 \| good	20.165 \| good	3.856 \| good	12.218 \| good	0.161 \| good
2025-07-26T05:00:00.000Z	17 \| good	1.89 \| good	7.769 \| good	18.092 \| good	4.088 \| good	14.179 \| good	0.166 \| good
2025-07-26T06:00:00.000Z	16 \| good	2.01 \| good	8.223 \| good	17.164 \| good	4.321 \| good	16.14 \| good	0.171 \| good
2025-07-26T07:00:00.000Z	16 \| good	3.22 \| good	13.759 \| good	16.165 \| good	4.42 \| good	17.485 \| good	0.176 \| good
2025-07-26T08:00:00.000Z	18 \| good	2.898 \| good	12.053 \| good	14.49 \| good	4.52 \| good	18.829 \| good	0.181 \| good
2025-07-26T09:00:00.000Z	22 \| good	4.038 \| good	17.81 \| good	13.827 \| good	4.619 \| good	20.173 \| good	0.186 \| good
2025-07-26T10:00:00.000Z	27 \| good	4.53 \| good	19.905 \| good	14.877 \| good	4.787 \| good	21.014 \| good	0.189 \| good
2025-07-26T11:00:00.000Z	27 \| good	4.884 \| good	21.078 \| good	15.644 \| good	4.955 \| good	21.856 \| good	0.191 \| good
2025-07-26T12:00:00.000Z	27 \| good	4.577 \| good	20.054 \| good	13.632 \| good	5.123 \| good	22.698 \| good	0.194 \| good
2025-07-26T13:00:00.000Z	27 \| good	5.35 \| good	23.251 \| good	16.243 \| good	5.342 \| good	19.85 \| good	0.194 \| good
2025-07-26T14:00:00.000Z	27 \| good	4.831 \| good	20.81 \| good	18.433 \| good	5.561 \| good	17.001 \| good	0.195 \| good
2025-07-26T15:00:00.000Z	33 \| good	6.062 \| good	26.7 \| good	21.937 \| good	5.78 \| good	14.153 \| good	0.195 \| good
2025-07-26T16:00:00.000Z	38 \| good	6.805 \| good	30.201 \| good	25.498 \| good	5.402 \| good	12.406 \| good	0.186 \| good
2025-07-26T17:00:00.000Z	33 \| good	5.899 \| good	26.207 \| good	30.906 \| good	5.025 \| good	10.659 \| good	0.177 \| good
2025-07-26T18:00:00.000Z	34 \| good	4.262 \| good	18.824 \| good	36.588 \| good	4.647 \| good	8.912 \| good	0.168 \| good
2025-07-26T19:00:00.000Z	36 \| good	2.581 \| good	10.827 \| good	39.24 \| good	4.252 \| good	7.584 \| good	0.161 \| good
2025-07-26T20:00:00.000Z	40 \| good	5.738 \| good	24.562 \| good	42.55 \| good	3.857 \| good	6.257 \| good	0.154 \| good
2025-07-26T21:00:00.000Z	45 \| good	5.247 \| good	22.786 \| good	48.829 \| good	3.461 \| good	4.929 \| good	0.147 \| good
2025-07-26T22:00:00.000Z	47 \| good	6.342 \| good	28.284 \| good	51.347 \| good	3.453 \| good	4.791 \| good	0.145 \| good
2025-07-26T23:00:00.000Z	44 \| good	6.761 \| good	30.106 \| good	47.839 \| good	3.445 \| good	4.653 \| good	0.143 \| good
2025-07-27T00:00:00.000Z	39 \| good	4.922 \| good	21.241 \| good	41.65 \| good	3.437 \| good	4.515 \| good	0.14 \| good
2025-07-27T01:00:00.000Z	33 \| good	3.512 \| good	15.335 \| good	35.985 \| good	3.535 \| good	6.507 \| good	0.144 \| good
2025-07-27T02:00:00.000Z	30 \| good	3.807 \| good	16.757 \| good	31.526 \| good	3.634 \| good	8.498 \| good	0.147 \| good
2025-07-27T03:00:00.000Z	22 \| good	4.197 \| good	18.355 \| good	24.337 \| good	3.732 \| good	10.49 \| good	0.151 \| good
2025-07-27T04:00:00.000Z	21 \| good	2.399 \| good	9.584 \| good	22.767 \| good	3.968 \| good	12.761 \| good	0.156 \| good
2025-07-27T05:00:00.000Z	22 \| good	3.829 \| good	16.96 \| good	21.927 \| good	4.204 \| good	15.031 \| good	0.161 \| good
2025-07-27T06:00:00.000Z	22 \| good	4.136 \| good	18.209 \| good	20.095 \| good	4.44 \| good	17.302 \| good	0.167 \| good
2025-07-27T07:00:00.000Z	27 \| good	4.887 \| good	21.086 \| good	19.057 \| good	4.523 \| good	19.034 \| good	0.175 \| good
2025-07-27T08:00:00.000Z	22 \| good	3.799 \| good	16.474 \| good	18.167 \| good	4.607 \| good	20.766 \| good	0.184 \| good
2025-07-27T09:00:00.000Z	27 \| good	4.962 \| good	21.459 \| good	19.064 \| good	4.69 \| good	22.498 \| good	0.192 \| good
2025-07-27T10:00:00.000Z	33 \| good	5.723 \| good	25.424 \| good	20.69 \| good	4.58 \| good	22.284 \| good	0.193 \| good
2025-07-27T11:00:00.000Z	27 \| good	4.92 \| good	21.206 \| good	19.967 \| good	4.471 \| good	22.07 \| good	0.194 \| good
2025-07-27T12:00:00.000Z	27 \| good	5.16 \| good	22.546 \| good	16.448 \| good	4.361 \| good	21.856 \| good	0.195 \| good
2025-07-27T13:00:00.000Z	38 \| good	7.39 \| good	32.687 \| good	18.064 \| good	4.785 \| good	19.027 \| good	0.19 \| good

Live air quality index in Walnut, California today

Major air pollutants in Walnut, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Walnut, California air quality map: Stay updated on AQI near you

Air quality in nearby cities

South San Jose Hills, California

Diamond Bar, California

Rowland Heights, California

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La Puente, California

Covina, California

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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What is the nitrogen dioxide (NO₂) level in Walnut, California at the moment?