What is the current concentration of PM10 in Grand Terrace, California?

The current PM10 concentration at Grand Terrace, California is 7.004 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Grand Terrace, California?

The current sulfur dioxide (SO2) concentration at Grand Terrace, California is 0.294 ppb.

What is the current concentration of ozone (O3) in Grand Terrace, California?

The current ozone (O3) concentration at Grand Terrace, California is 37.72 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Grand Terrace, California?

The current nitrogen dioxide (NO2) concentration at Grand Terrace, California is 6.463 ppb.

Grand Terrace, California live air quality index now

Q: What is the current concentration of PM2.5 in Grand Terrace, California?

The current PM2.5 concentration at Grand Terrace, California is 2.315 μg/m3.

Stay updated with real-time air quality in Grand Terrace, 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

Grand Terrace, California

Last updated: ... (Local time)

Major air pollutants in Grand Terrace, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.31 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

7.00 μg/m³

155

255

425

605+

Ozone (O₃)

37.72 ppb

201

201+

Sulfur Dioxide (SO₂)

0.29 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.46 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Grand Terrace, California

Get Live Pollen Counts

Grand Terrace, California

Scroll To Air Quality Map

Track live Grand Terrace, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-21T01:00:00.000Z	46 \| good	7.639 \| good	34.841 \| good	50.305 \| good	0.39 \| good	6.869 \| good	0.248 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.853 \| good	35.064 \| good	46.085 \| good	0.231 \| good	10.047 \| good	0.25 \| good
2026-10-21T03:00:00.000Z	38 \| good	6.307 \| good	28.125 \| good	41.269 \| good	0.495 \| good	8.753 \| good	0.164 \| good
2026-10-21T04:00:00.000Z	49 \| good	9.073 \| good	34.403 \| good	38.885 \| good	0.23 \| good	9.397 \| good	0.206 \| good
2026-10-21T05:00:00.000Z	49 \| good	8.998 \| good	32.633 \| good	38.626 \| good	0.771 \| good	10.951 \| good	0.24 \| good
2026-10-21T06:00:00.000Z	44 \| good	8.493 \| good	27.783 \| good	29.421 \| good	0.317 \| good	10.417 \| good	0.238 \| good
2026-10-21T07:00:00.000Z	49 \| good	8.568 \| good	29.726 \| good	29.354 \| good	0.317 \| good	10.417 \| good	0.238 \| good
2026-10-21T08:00:00.000Z	38 \| good	7.245 \| good	27.985 \| good	21.648 \| good	0.314 \| good	11.743 \| good	0.242 \| good
2026-10-21T09:00:00.000Z	38 \| good	6.778 \| good	25.584 \| good	16.34 \| good	0.485 \| good	14.631 \| good	0.236 \| good
2026-10-21T10:00:00.000Z	33 \| good	6.418 \| good	24.881 \| good	15.054 \| good	0.321 \| good	14.998 \| good	0.207 \| good
2026-10-21T11:00:00.000Z	38 \| good	6.51 \| good	24.521 \| good	14.058 \| good	0.311 \| good	16.29 \| good	0.244 \| good
2026-10-21T12:00:00.000Z	38 \| good	7.258 \| good	26.041 \| good	12.599 \| good	0.479 \| good	20.357 \| good	0.301 \| good
2026-10-21T13:00:00.000Z	38 \| good	7.413 \| good	27.737 \| good	12.407 \| good	0.481 \| good	20.357 \| good	0.301 \| good
2026-10-21T14:00:00.000Z	49 \| good	9.29 \| good	35.549 \| good	9.027 \| good	0.394 \| good	22.559 \| good	0.502 \| good
2026-10-21T15:00:00.000Z	54 \| moderate	10.502 \| good	46.42 \| good	9.481 \| good	0.495 \| good	23.921 \| good	0.566 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	13.174 \| fine	49.406 \| good	11.769 \| good	0.507 \| good	26.577 \| good	0.509 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	13.629 \| fine	57.28 \| fine	15.482 \| good	0.501 \| good	24.91 \| good	0.461 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	12.891 \| fine	53.948 \| good	20.29 \| good	0.289 \| good	22.675 \| good	0.341 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	12.31 \| fine	47.071 \| good	21.085 \| good	0.279 \| good	18.159 \| good	0.336 \| good
2026-10-21T20:00:00.000Z	56 \| moderate	11.604 \| good	45.088 \| good	34.027 \| good	0.238 \| good	11.115 \| good	0.276 \| good
2026-10-21T21:00:00.000Z	54 \| moderate	10.547 \| good	42.069 \| good	41.873 \| good	0.32 \| good	10.433 \| good	0.302 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.93 \| good	37.994 \| good	44.124 \| good	0.279 \| good	9.131 \| good	0.242 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	10.397 \| good	38.915 \| good	42.446 \| good	0.24 \| good	9.03 \| good	0.247 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.152 \| good	36.571 \| good	42.587 \| good	0.278 \| good	8.872 \| good	0.218 \| good
2026-10-22T01:00:00.000Z	52 \| moderate	9.979 \| good	34.901 \| good	44.707 \| good	0.238 \| good	9.233 \| good	0.225 \| good
2026-10-22T02:00:00.000Z	49 \| good	9.177 \| good	34.187 \| good	41.753 \| good	0.408 \| good	8.121 \| good	0.256 \| good
2026-10-22T03:00:00.000Z	31 \| good	4.262 \| good	18.83 \| good	32.518 \| good	0.322 \| good	4.179 \| good	0.126 \| good
2026-10-22T04:00:00.000Z	44 \| good	7.649 \| good	20.129 \| good	30.62 \| good	0.394 \| good	10.291 \| good	0.21 \| good
2026-10-22T05:00:00.000Z	38 \| good	6.719 \| good	14.366 \| good	27.891 \| good	0.75 \| good	8.976 \| good	0.207 \| good
2026-10-22T06:00:00.000Z	33 \| good	5.896 \| good	12.627 \| good	24.021 \| good	0.289 \| good	8.689 \| good	0.209 \| good
2026-10-22T07:00:00.000Z	33 \| good	5.795 \| good	12.521 \| good	23.846 \| good	0.289 \| good	8.689 \| good	0.209 \| good
2026-10-22T08:00:00.000Z	23 \| good	2.884 \| good	8.367 \| good	24.735 \| good	0.295 \| good	4.205 \| good	0.143 \| good
2026-10-22T09:00:00.000Z	23 \| good	3.356 \| good	9.206 \| good	24.666 \| good	0.388 \| good	4.068 \| good	0.107 \| good
2026-10-22T10:00:00.000Z	23 \| good	3.588 \| good	9.374 \| good	24.94 \| good	0.295 \| good	4.364 \| good	0.107 \| good
2026-10-22T11:00:00.000Z	33 \| good	5.872 \| good	12.075 \| good	24.128 \| good	0.266 \| good	6.788 \| good	0.149 \| good
2026-10-22T12:00:00.000Z	27 \| good	4.848 \| good	11.027 \| good	21.305 \| good	0.295 \| good	5.928 \| good	0.21 \| good
2026-10-22T13:00:00.000Z	27 \| good	5.16 \| good	10.418 \| good	20.907 \| good	0.295 \| good	5.928 \| good	0.21 \| good
2026-10-22T14:00:00.000Z	23 \| good	3.399 \| good	7.231 \| good	25.375 \| good	0.295 \| good	8.162 \| good	0.206 \| good
2026-10-22T15:00:00.000Z	22 \| good	2.86 \| good	5.931 \| good	24.436 \| good	0.293 \| good	9.862 \| good	0.242 \| good
2026-10-22T16:00:00.000Z	26 \| good	3.613 \| good	7.285 \| good	27.874 \| good	0.305 \| good	11.989 \| good	0.273 \| good
2026-10-22T17:00:00.000Z	31 \| good	4.352 \| good	9.115 \| good	33.173 \| good	0.218 \| good	7.637 \| good	0.25 \| good
2026-10-22T18:00:00.000Z	33 \| good	4.145 \| good	9.513 \| good	35.708 \| good	0.212 \| good	5.17 \| good	0.152 \| good
2026-10-22T19:00:00.000Z	33 \| good	3.166 \| good	8.645 \| good	35.93 \| good	0.199 \| good	4.365 \| good	0.15 \| good
2026-10-22T20:00:00.000Z	37 \| good	2.821 \| good	7.232 \| good	39.664 \| good	0.281 \| good	4.142 \| good	0.147 \| good
2026-10-22T21:00:00.000Z	37 \| good	3.332 \| good	6.818 \| good	40.375 \| good	0.278 \| good	7.66 \| good	0.204 \| good
2026-10-22T22:00:00.000Z	36 \| good	2.969 \| good	6.887 \| good	38.624 \| good	0.297 \| good	9.944 \| good	0.238 \| good
2026-10-22T23:00:00.000Z	35 \| good	3.222 \| good	7.939 \| good	38.438 \| good	0.297 \| good	8.638 \| good	0.242 \| good
2026-10-23T00:00:00.000Z	35 \| good	2.315 \| good	7.004 \| good	37.72 \| good	0.294 \| good	6.463 \| good	0.241 \| good
2026-10-23T01:00:00.000Z	33 \| good	3.966 \| good	17.292 \| good	35.671 \| good	0.279 \| good	2.783 \| good	0.142 \| good
2026-10-23T02:00:00.000Z	27 \| good	5.35 \| good	23.188 \| good	26.484 \| good	0.364 \| good	8.083 \| good	0.17 \| good
2026-10-23T03:00:00.000Z	38 \| good	7.247 \| good	32.147 \| good	27.201 \| good	0.439 \| good	12.401 \| good	0.192 \| good
2026-10-23T04:00:00.000Z	38 \| good	7.046 \| good	31.216 \| good	25.502 \| good	0.479 \| good	15.286 \| good	0.208 \| good
2026-10-23T05:00:00.000Z	33 \| good	6.491 \| good	28.692 \| good	22.956 \| good	0.493 \| good	16.157 \| good	0.216 \| good
2026-10-23T06:00:00.000Z	33 \| good	6.256 \| good	27.935 \| good	18.466 \| good	0.487 \| good	15.87 \| good	0.218 \| good
2026-10-23T07:00:00.000Z	33 \| good	6.252 \| good	27.536 \| good	14.5 \| good	0.434 \| good	12.246 \| good	0.203 \| good
2026-10-23T08:00:00.000Z	33 \| good	5.891 \| good	25.769 \| good	13.119 \| good	0.45 \| good	7.048 \| good	0.176 \| good
2026-10-23T09:00:00.000Z	22 \| good	4.364 \| good	18.94 \| good	13.365 \| good	0.442 \| good	5.532 \| good	0.168 \| good
2026-10-23T10:00:00.000Z	16 \| good	3.147 \| good	13.566 \| good	16.525 \| good	0.515 \| good	3.222 \| good	0.152 \| good
2026-10-23T11:00:00.000Z	18 \| good	2.725 \| good	11.427 \| good	18.75 \| good	0.512 \| good	3.033 \| good	0.15 \| good
2026-10-23T12:00:00.000Z	17 \| good	1.875 \| good	7.638 \| good	17.854 \| good	0.472 \| good	3.926 \| good	0.155 \| good
2026-10-23T13:00:00.000Z	15 \| good	1.15 \| good	4.607 \| good	16.174 \| good	0.474 \| good	3.965 \| good	0.156 \| good
2026-10-23T14:00:00.000Z	14 \| good	2.281 \| good	9.219 \| good	15.414 \| good	0.481 \| good	5.359 \| good	0.163 \| good
2026-10-23T15:00:00.000Z	22 \| good	3.899 \| good	17.193 \| good	20.795 \| good	0.491 \| good	5.919 \| good	0.17 \| good
2026-10-23T16:00:00.000Z	24 \| good	3.303 \| good	14.198 \| good	25.896 \| good	0.36 \| good	2.205 \| good	0.138 \| good
2026-10-23T17:00:00.000Z	28 \| good	2.996 \| good	12.972 \| good	30.096 \| good	0.304 \| good	1.505 \| good	0.13 \| good
2026-10-23T18:00:00.000Z	31 \| good	2.957 \| good	11.886 \| good	34.123 \| good	0.271 \| good	1.251 \| good	0.125 \| good
2026-10-23T19:00:00.000Z	33 \| good	4.429 \| good	19.201 \| good	35.721 \| good	0.271 \| good	1.356 \| good	0.125 \| good
2026-10-23T20:00:00.000Z	36 \| good	4.444 \| good	19.531 \| good	38.966 \| good	0.238 \| good	1.141 \| good	0.123 \| good
2026-10-23T21:00:00.000Z	41 \| good	4.951 \| good	21.132 \| good	44.417 \| good	0.228 \| good	1.022 \| good	0.122 \| good
2026-10-23T22:00:00.000Z	45 \| good	5.6 \| good	24.344 \| good	48.516 \| good	0.223 \| good	1.028 \| good	0.122 \| good
2026-10-23T23:00:00.000Z	46 \| good	6.153 \| good	27.039 \| good	49.861 \| good	0.232 \| good	1.217 \| good	0.123 \| good
2026-10-24T00:00:00.000Z	44 \| good	5.967 \| good	26.034 \| good	47.405 \| good	0.268 \| good	1.766 \| good	0.126 \| good
2026-10-24T01:00:00.000Z	52 \| moderate	9.738 \| good	43.246 \| good	39.93 \| good	0.33 \| good	3.909 \| good	0.136 \| good
2026-10-24T02:00:00.000Z	54 \| moderate	10.816 \| good	47.589 \| good	34.791 \| good	0.409 \| good	8.936 \| good	0.163 \| good
2026-10-24T03:00:00.000Z	54 \| moderate	11.461 \| good	50.599 \| good	35.552 \| good	0.498 \| good	13.151 \| good	0.185 \| good
2026-10-24T04:00:00.000Z	56 \| moderate	12.478 \| fine	55.796 \| fine	32.652 \| good	0.555 \| good	16.425 \| good	0.203 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	13.434 \| fine	60.066 \| fine	28.441 \| good	0.552 \| good	19.353 \| good	0.221 \| good
2026-10-24T06:00:00.000Z	60 \| moderate	14.125 \| fine	63.134 \| fine	22.529 \| good	0.48 \| good	21.465 \| good	0.239 \| good
2026-10-24T07:00:00.000Z	62 \| moderate	14.977 \| fine	67.347 \| fine	17.245 \| good	0.368 \| good	20.275 \| good	0.247 \| good
2026-10-24T08:00:00.000Z	58 \| moderate	13.251 \| fine	58.762 \| fine	12.422 \| good	0.264 \| good	17.736 \| good	0.247 \| good
2026-10-24T09:00:00.000Z	52 \| moderate	10.402 \| good	46.18 \| good	11.578 \| good	0.195 \| good	15.648 \| good	0.242 \| good
2026-10-24T10:00:00.000Z	49 \| good	8.558 \| good	37.959 \| good	12.572 \| good	0.153 \| good	14.146 \| good	0.235 \| good
2026-10-24T11:00:00.000Z	44 \| good	8.426 \| good	37.486 \| good	13.243 \| good	0.13 \| good	13.094 \| good	0.229 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.753 \| good	34.318 \| good	13.179 \| good	0.119 \| good	12.448 \| good	0.222 \| good
2026-10-24T13:00:00.000Z	44 \| good	7.787 \| good	34.169 \| good	11.328 \| good	0.119 \| good	12.323 \| good	0.216 \| good
2026-10-24T14:00:00.000Z	44 \| good	7.911 \| good	34.903 \| good	12.409 \| good	0.15 \| good	12.517 \| good	0.218 \| good
2026-10-24T15:00:00.000Z	58 \| moderate	12.932 \| fine	57.845 \| fine	17.496 \| good	0.196 \| good	10.028 \| good	0.228 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	10.455 \| good	46.137 \| good	26.067 \| good	0.211 \| good	7.503 \| good	0.209 \| good
2026-10-24T17:00:00.000Z	44 \| good	8.39 \| good	37.237 \| good	34.386 \| good	0.172 \| good	3.342 \| good	0.146 \| good
2026-10-24T18:00:00.000Z	40 \| good	3.377 \| good	14.386 \| good	42.953 \| good	0.266 \| good	2.056 \| good	0.133 \| good
2026-10-24T19:00:00.000Z	42 \| good	3.74 \| good	16.168 \| good	44.934 \| good	0.273 \| good	1.503 \| good	0.127 \| good
2026-10-24T20:00:00.000Z	44 \| good	3.34 \| good	14.263 \| good	46.697 \| good	0.254 \| good	1.222 \| good	0.125 \| good
2026-10-24T21:00:00.000Z	45 \| good	2.724 \| good	11.024 \| good	49.251 \| good	0.251 \| good	1.111 \| good	0.123 \| good
2026-10-24T22:00:00.000Z	46 \| good	2.366 \| good	9.8 \| good	49.943 \| good	0.274 \| good	1.129 \| good	0.123 \| good
2026-10-24T23:00:00.000Z	45 \| good	2.867 \| good	11.807 \| good	49.377 \| good	0.339 \| good	1.363 \| good	0.125 \| good
2026-10-25T00:00:00.000Z	42 \| good	3.556 \| good	15.088 \| good	44.944 \| good	0.47 \| good	2.058 \| good	0.13 \| good

Grand Terrace

Get reliable air quality data to drive your business

Grand Terrace, California air quality map: Track AQI near you

0.25ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is the air quality data for Grand Terrace, California updated?

The air quality for Grand Terrace, California is updated every hour.

When was the worst air quality at Grand Terrace, California in the last 24 hrs?

The worst air quality in Grand Terrace, California in the last 24 hours was observed at 01:00:00 on 2026-10-22.

When was the best air quality at Grand Terrace, California in the last 24 hrs?

In the last 24 hrs, the best air quality in Grand Terrace, California was observed at 03:00:00 on 2026-10-22.

What is the current air quality in Grand Terrace, California?

The current air quality in Grand Terrace, California is 35, categorized as Good based on real-time data.

What pollutant is the most common in Grand Terrace, California?

The most common pollutant in Grand Terrace, California is O3.

What should I do if the air quality in Grand Terrace, California is poor?

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

What is the current concentration of PM_2.5 in Grand Terrace, California?

The current PM_2.5 concentration at Grand Terrace, California is 2.315 μg/m³.

What is the current concentration of PM₁₀ in Grand Terrace, California?

The current PM₁₀ concentration at Grand Terrace, California is 7.004 μg/m³.

What is the current concentration of carbon monoxide (CO) in Grand Terrace, California?

The current carbon monoxide (CO) concentration at Grand Terrace, California is 0.241 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Grand Terrace, California?

The current sulfur dioxide (SO₂) concentration at Grand Terrace, California is 0.294 ppb.

What is the current concentration of ozone (O₃) in Grand Terrace, California?

The current ozone (O₃) concentration at Grand Terrace, California is 37.72 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Grand Terrace, California?

The current nitrogen dioxide (NO₂) concentration at Grand Terrace, California is 6.463 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-21T01:00:00.000Z	46 \| good	7.639 \| good	34.841 \| good	50.305 \| good	0.39 \| good	6.869 \| good	0.248 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.853 \| good	35.064 \| good	46.085 \| good	0.231 \| good	10.047 \| good	0.25 \| good
2026-10-21T03:00:00.000Z	38 \| good	6.307 \| good	28.125 \| good	41.269 \| good	0.495 \| good	8.753 \| good	0.164 \| good
2026-10-21T04:00:00.000Z	49 \| good	9.073 \| good	34.403 \| good	38.885 \| good	0.23 \| good	9.397 \| good	0.206 \| good
2026-10-21T05:00:00.000Z	49 \| good	8.998 \| good	32.633 \| good	38.626 \| good	0.771 \| good	10.951 \| good	0.24 \| good
2026-10-21T06:00:00.000Z	44 \| good	8.493 \| good	27.783 \| good	29.421 \| good	0.317 \| good	10.417 \| good	0.238 \| good
2026-10-21T07:00:00.000Z	49 \| good	8.568 \| good	29.726 \| good	29.354 \| good	0.317 \| good	10.417 \| good	0.238 \| good
2026-10-21T08:00:00.000Z	38 \| good	7.245 \| good	27.985 \| good	21.648 \| good	0.314 \| good	11.743 \| good	0.242 \| good
2026-10-21T09:00:00.000Z	38 \| good	6.778 \| good	25.584 \| good	16.34 \| good	0.485 \| good	14.631 \| good	0.236 \| good
2026-10-21T10:00:00.000Z	33 \| good	6.418 \| good	24.881 \| good	15.054 \| good	0.321 \| good	14.998 \| good	0.207 \| good
2026-10-21T11:00:00.000Z	38 \| good	6.51 \| good	24.521 \| good	14.058 \| good	0.311 \| good	16.29 \| good	0.244 \| good
2026-10-21T12:00:00.000Z	38 \| good	7.258 \| good	26.041 \| good	12.599 \| good	0.479 \| good	20.357 \| good	0.301 \| good
2026-10-21T13:00:00.000Z	38 \| good	7.413 \| good	27.737 \| good	12.407 \| good	0.481 \| good	20.357 \| good	0.301 \| good
2026-10-21T14:00:00.000Z	49 \| good	9.29 \| good	35.549 \| good	9.027 \| good	0.394 \| good	22.559 \| good	0.502 \| good
2026-10-21T15:00:00.000Z	54 \| moderate	10.502 \| good	46.42 \| good	9.481 \| good	0.495 \| good	23.921 \| good	0.566 \| good
2026-10-21T16:00:00.000Z	58 \| moderate	13.174 \| fine	49.406 \| good	11.769 \| good	0.507 \| good	26.577 \| good	0.509 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	13.629 \| fine	57.28 \| fine	15.482 \| good	0.501 \| good	24.91 \| good	0.461 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	12.891 \| fine	53.948 \| good	20.29 \| good	0.289 \| good	22.675 \| good	0.341 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	12.31 \| fine	47.071 \| good	21.085 \| good	0.279 \| good	18.159 \| good	0.336 \| good
2026-10-21T20:00:00.000Z	56 \| moderate	11.604 \| good	45.088 \| good	34.027 \| good	0.238 \| good	11.115 \| good	0.276 \| good
2026-10-21T21:00:00.000Z	54 \| moderate	10.547 \| good	42.069 \| good	41.873 \| good	0.32 \| good	10.433 \| good	0.302 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.93 \| good	37.994 \| good	44.124 \| good	0.279 \| good	9.131 \| good	0.242 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	10.397 \| good	38.915 \| good	42.446 \| good	0.24 \| good	9.03 \| good	0.247 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.152 \| good	36.571 \| good	42.587 \| good	0.278 \| good	8.872 \| good	0.218 \| good
2026-10-22T01:00:00.000Z	52 \| moderate	9.979 \| good	34.901 \| good	44.707 \| good	0.238 \| good	9.233 \| good	0.225 \| good
2026-10-22T02:00:00.000Z	49 \| good	9.177 \| good	34.187 \| good	41.753 \| good	0.408 \| good	8.121 \| good	0.256 \| good
2026-10-22T03:00:00.000Z	31 \| good	4.262 \| good	18.83 \| good	32.518 \| good	0.322 \| good	4.179 \| good	0.126 \| good
2026-10-22T04:00:00.000Z	44 \| good	7.649 \| good	20.129 \| good	30.62 \| good	0.394 \| good	10.291 \| good	0.21 \| good
2026-10-22T05:00:00.000Z	38 \| good	6.719 \| good	14.366 \| good	27.891 \| good	0.75 \| good	8.976 \| good	0.207 \| good
2026-10-22T06:00:00.000Z	33 \| good	5.896 \| good	12.627 \| good	24.021 \| good	0.289 \| good	8.689 \| good	0.209 \| good
2026-10-22T07:00:00.000Z	33 \| good	5.795 \| good	12.521 \| good	23.846 \| good	0.289 \| good	8.689 \| good	0.209 \| good
2026-10-22T08:00:00.000Z	23 \| good	2.884 \| good	8.367 \| good	24.735 \| good	0.295 \| good	4.205 \| good	0.143 \| good
2026-10-22T09:00:00.000Z	23 \| good	3.356 \| good	9.206 \| good	24.666 \| good	0.388 \| good	4.068 \| good	0.107 \| good
2026-10-22T10:00:00.000Z	23 \| good	3.588 \| good	9.374 \| good	24.94 \| good	0.295 \| good	4.364 \| good	0.107 \| good
2026-10-22T11:00:00.000Z	33 \| good	5.872 \| good	12.075 \| good	24.128 \| good	0.266 \| good	6.788 \| good	0.149 \| good
2026-10-22T12:00:00.000Z	27 \| good	4.848 \| good	11.027 \| good	21.305 \| good	0.295 \| good	5.928 \| good	0.21 \| good
2026-10-22T13:00:00.000Z	27 \| good	5.16 \| good	10.418 \| good	20.907 \| good	0.295 \| good	5.928 \| good	0.21 \| good
2026-10-22T14:00:00.000Z	23 \| good	3.399 \| good	7.231 \| good	25.375 \| good	0.295 \| good	8.162 \| good	0.206 \| good
2026-10-22T15:00:00.000Z	22 \| good	2.86 \| good	5.931 \| good	24.436 \| good	0.293 \| good	9.862 \| good	0.242 \| good
2026-10-22T16:00:00.000Z	26 \| good	3.613 \| good	7.285 \| good	27.874 \| good	0.305 \| good	11.989 \| good	0.273 \| good
2026-10-22T17:00:00.000Z	31 \| good	4.352 \| good	9.115 \| good	33.173 \| good	0.218 \| good	7.637 \| good	0.25 \| good
2026-10-22T18:00:00.000Z	33 \| good	4.145 \| good	9.513 \| good	35.708 \| good	0.212 \| good	5.17 \| good	0.152 \| good
2026-10-22T19:00:00.000Z	33 \| good	3.166 \| good	8.645 \| good	35.93 \| good	0.199 \| good	4.365 \| good	0.15 \| good
2026-10-22T20:00:00.000Z	37 \| good	2.821 \| good	7.232 \| good	39.664 \| good	0.281 \| good	4.142 \| good	0.147 \| good
2026-10-22T21:00:00.000Z	37 \| good	3.332 \| good	6.818 \| good	40.375 \| good	0.278 \| good	7.66 \| good	0.204 \| good
2026-10-22T22:00:00.000Z	36 \| good	2.969 \| good	6.887 \| good	38.624 \| good	0.297 \| good	9.944 \| good	0.238 \| good
2026-10-22T23:00:00.000Z	35 \| good	3.222 \| good	7.939 \| good	38.438 \| good	0.297 \| good	8.638 \| good	0.242 \| good
2026-10-23T00:00:00.000Z	35 \| good	2.315 \| good	7.004 \| good	37.72 \| good	0.294 \| good	6.463 \| good	0.241 \| good
2026-10-23T01:00:00.000Z	33 \| good	3.966 \| good	17.292 \| good	35.671 \| good	0.279 \| good	2.783 \| good	0.142 \| good
2026-10-23T02:00:00.000Z	27 \| good	5.35 \| good	23.188 \| good	26.484 \| good	0.364 \| good	8.083 \| good	0.17 \| good
2026-10-23T03:00:00.000Z	38 \| good	7.247 \| good	32.147 \| good	27.201 \| good	0.439 \| good	12.401 \| good	0.192 \| good
2026-10-23T04:00:00.000Z	38 \| good	7.046 \| good	31.216 \| good	25.502 \| good	0.479 \| good	15.286 \| good	0.208 \| good
2026-10-23T05:00:00.000Z	33 \| good	6.491 \| good	28.692 \| good	22.956 \| good	0.493 \| good	16.157 \| good	0.216 \| good
2026-10-23T06:00:00.000Z	33 \| good	6.256 \| good	27.935 \| good	18.466 \| good	0.487 \| good	15.87 \| good	0.218 \| good
2026-10-23T07:00:00.000Z	33 \| good	6.252 \| good	27.536 \| good	14.5 \| good	0.434 \| good	12.246 \| good	0.203 \| good
2026-10-23T08:00:00.000Z	33 \| good	5.891 \| good	25.769 \| good	13.119 \| good	0.45 \| good	7.048 \| good	0.176 \| good
2026-10-23T09:00:00.000Z	22 \| good	4.364 \| good	18.94 \| good	13.365 \| good	0.442 \| good	5.532 \| good	0.168 \| good
2026-10-23T10:00:00.000Z	16 \| good	3.147 \| good	13.566 \| good	16.525 \| good	0.515 \| good	3.222 \| good	0.152 \| good
2026-10-23T11:00:00.000Z	18 \| good	2.725 \| good	11.427 \| good	18.75 \| good	0.512 \| good	3.033 \| good	0.15 \| good
2026-10-23T12:00:00.000Z	17 \| good	1.875 \| good	7.638 \| good	17.854 \| good	0.472 \| good	3.926 \| good	0.155 \| good
2026-10-23T13:00:00.000Z	15 \| good	1.15 \| good	4.607 \| good	16.174 \| good	0.474 \| good	3.965 \| good	0.156 \| good
2026-10-23T14:00:00.000Z	14 \| good	2.281 \| good	9.219 \| good	15.414 \| good	0.481 \| good	5.359 \| good	0.163 \| good
2026-10-23T15:00:00.000Z	22 \| good	3.899 \| good	17.193 \| good	20.795 \| good	0.491 \| good	5.919 \| good	0.17 \| good
2026-10-23T16:00:00.000Z	24 \| good	3.303 \| good	14.198 \| good	25.896 \| good	0.36 \| good	2.205 \| good	0.138 \| good
2026-10-23T17:00:00.000Z	28 \| good	2.996 \| good	12.972 \| good	30.096 \| good	0.304 \| good	1.505 \| good	0.13 \| good
2026-10-23T18:00:00.000Z	31 \| good	2.957 \| good	11.886 \| good	34.123 \| good	0.271 \| good	1.251 \| good	0.125 \| good
2026-10-23T19:00:00.000Z	33 \| good	4.429 \| good	19.201 \| good	35.721 \| good	0.271 \| good	1.356 \| good	0.125 \| good
2026-10-23T20:00:00.000Z	36 \| good	4.444 \| good	19.531 \| good	38.966 \| good	0.238 \| good	1.141 \| good	0.123 \| good
2026-10-23T21:00:00.000Z	41 \| good	4.951 \| good	21.132 \| good	44.417 \| good	0.228 \| good	1.022 \| good	0.122 \| good
2026-10-23T22:00:00.000Z	45 \| good	5.6 \| good	24.344 \| good	48.516 \| good	0.223 \| good	1.028 \| good	0.122 \| good
2026-10-23T23:00:00.000Z	46 \| good	6.153 \| good	27.039 \| good	49.861 \| good	0.232 \| good	1.217 \| good	0.123 \| good
2026-10-24T00:00:00.000Z	44 \| good	5.967 \| good	26.034 \| good	47.405 \| good	0.268 \| good	1.766 \| good	0.126 \| good
2026-10-24T01:00:00.000Z	52 \| moderate	9.738 \| good	43.246 \| good	39.93 \| good	0.33 \| good	3.909 \| good	0.136 \| good
2026-10-24T02:00:00.000Z	54 \| moderate	10.816 \| good	47.589 \| good	34.791 \| good	0.409 \| good	8.936 \| good	0.163 \| good
2026-10-24T03:00:00.000Z	54 \| moderate	11.461 \| good	50.599 \| good	35.552 \| good	0.498 \| good	13.151 \| good	0.185 \| good
2026-10-24T04:00:00.000Z	56 \| moderate	12.478 \| fine	55.796 \| fine	32.652 \| good	0.555 \| good	16.425 \| good	0.203 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	13.434 \| fine	60.066 \| fine	28.441 \| good	0.552 \| good	19.353 \| good	0.221 \| good
2026-10-24T06:00:00.000Z	60 \| moderate	14.125 \| fine	63.134 \| fine	22.529 \| good	0.48 \| good	21.465 \| good	0.239 \| good
2026-10-24T07:00:00.000Z	62 \| moderate	14.977 \| fine	67.347 \| fine	17.245 \| good	0.368 \| good	20.275 \| good	0.247 \| good
2026-10-24T08:00:00.000Z	58 \| moderate	13.251 \| fine	58.762 \| fine	12.422 \| good	0.264 \| good	17.736 \| good	0.247 \| good
2026-10-24T09:00:00.000Z	52 \| moderate	10.402 \| good	46.18 \| good	11.578 \| good	0.195 \| good	15.648 \| good	0.242 \| good
2026-10-24T10:00:00.000Z	49 \| good	8.558 \| good	37.959 \| good	12.572 \| good	0.153 \| good	14.146 \| good	0.235 \| good
2026-10-24T11:00:00.000Z	44 \| good	8.426 \| good	37.486 \| good	13.243 \| good	0.13 \| good	13.094 \| good	0.229 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.753 \| good	34.318 \| good	13.179 \| good	0.119 \| good	12.448 \| good	0.222 \| good
2026-10-24T13:00:00.000Z	44 \| good	7.787 \| good	34.169 \| good	11.328 \| good	0.119 \| good	12.323 \| good	0.216 \| good
2026-10-24T14:00:00.000Z	44 \| good	7.911 \| good	34.903 \| good	12.409 \| good	0.15 \| good	12.517 \| good	0.218 \| good
2026-10-24T15:00:00.000Z	58 \| moderate	12.932 \| fine	57.845 \| fine	17.496 \| good	0.196 \| good	10.028 \| good	0.228 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	10.455 \| good	46.137 \| good	26.067 \| good	0.211 \| good	7.503 \| good	0.209 \| good
2026-10-24T17:00:00.000Z	44 \| good	8.39 \| good	37.237 \| good	34.386 \| good	0.172 \| good	3.342 \| good	0.146 \| good
2026-10-24T18:00:00.000Z	40 \| good	3.377 \| good	14.386 \| good	42.953 \| good	0.266 \| good	2.056 \| good	0.133 \| good
2026-10-24T19:00:00.000Z	42 \| good	3.74 \| good	16.168 \| good	44.934 \| good	0.273 \| good	1.503 \| good	0.127 \| good
2026-10-24T20:00:00.000Z	44 \| good	3.34 \| good	14.263 \| good	46.697 \| good	0.254 \| good	1.222 \| good	0.125 \| good
2026-10-24T21:00:00.000Z	45 \| good	2.724 \| good	11.024 \| good	49.251 \| good	0.251 \| good	1.111 \| good	0.123 \| good
2026-10-24T22:00:00.000Z	46 \| good	2.366 \| good	9.8 \| good	49.943 \| good	0.274 \| good	1.129 \| good	0.123 \| good
2026-10-24T23:00:00.000Z	45 \| good	2.867 \| good	11.807 \| good	49.377 \| good	0.339 \| good	1.363 \| good	0.125 \| good
2026-10-25T00:00:00.000Z	42 \| good	3.556 \| good	15.088 \| good	44.944 \| good	0.47 \| good	2.058 \| good	0.13 \| good

Grand Terrace, California live air quality index now

Major air pollutants in Grand Terrace, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Grand Terrace, California air quality forecast and history

Get reliable air quality data to drive your business

Grand Terrace, California air quality map: Track AQI near you

Air quality in nearby cities

Colton, California

Loma Linda, California

Riverside, California

San Bernardino, California

Bloomington, California

Rialto, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Grand Terrace, California updated?

When was the worst air quality at Grand Terrace, California in the last 24 hrs?

When was the best air quality at Grand Terrace, California in the last 24 hrs?

What is the current air quality in Grand Terrace, California?

What pollutant is the most common in Grand Terrace, California?

What should I do if the air quality in Grand Terrace, California is poor?

What is the current concentration of PM2.5 in Grand Terrace, California?

What is the current concentration of PM10 in Grand Terrace, California?

What is the current concentration of carbon monoxide (CO) in Grand Terrace, California?

What is the current concentration of sulfur dioxide (SO2) in Grand Terrace, California?

What is the current concentration of ozone (O3) in Grand Terrace, California?

What is the current concentration of nitrogen dioxide (NO2) in Grand Terrace, 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 Grand Terrace, California?

What is the current concentration of PM₁₀ in Grand Terrace, California?

What is the current concentration of sulfur dioxide (SO₂) in Grand Terrace, California?

What is the current concentration of ozone (O₃) in Grand Terrace, California?

What is the current concentration of nitrogen dioxide (NO₂) in Grand Terrace, California?