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

The current PM10 concentration at Grand Terrace, California is 52.236 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 0.354 ppb.

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

The current ozone (O3) concentration at Grand Terrace, California is 5.863 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 29.794 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 17.44 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)

Moderate

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)

17.44 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

52.24 μg/m³

155

255

425

605+

Ozone (O₃)

5.86 ppb

201

201+

Sulfur Dioxide (SO₂)

0.35 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

29.79 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.56 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2026-01-21T05:00:00.000Z	44 \| good	7.916 \| good	34.798 \| good	12.437 \| good	0.694 \| good	29.02 \| good	0.755 \| good
2026-01-21T06:00:00.000Z	49 \| good	8.527 \| good	34.457 \| good	12.437 \| good	0.499 \| good	28.938 \| good	0.649 \| good
2026-01-21T07:00:00.000Z	44 \| good	8.186 \| good	33.977 \| good	10.061 \| good	0.566 \| good	29.055 \| good	0.648 \| good
2026-01-21T08:00:00.000Z	52 \| moderate	10.286 \| good	41.703 \| good	7.714 \| good	0.648 \| good	24.194 \| good	0.48 \| good
2026-01-21T09:00:00.000Z	49 \| good	8.659 \| good	33.284 \| good	5.764 \| good	0.547 \| good	22.792 \| good	0.497 \| good
2026-01-21T10:00:00.000Z	38 \| good	7.345 \| good	27.337 \| good	5.166 \| good	0.488 \| good	23.678 \| good	0.471 \| good
2026-01-21T11:00:00.000Z	38 \| good	6.567 \| good	24.859 \| good	5.174 \| good	0.56 \| good	22.804 \| good	0.57 \| good
2026-01-21T12:00:00.000Z	33 \| good	6.176 \| good	22.294 \| good	5.628 \| good	0.497 \| good	20.869 \| good	0.503 \| good
2026-01-21T13:00:00.000Z	33 \| good	6.285 \| good	22.905 \| good	5.718 \| good	0.47 \| good	20.948 \| good	0.503 \| good
2026-01-21T14:00:00.000Z	38 \| good	6.932 \| good	24.51 \| good	5.742 \| good	0.753 \| good	21.559 \| good	0.616 \| good
2026-01-21T15:00:00.000Z	38 \| good	7.487 \| good	29.063 \| good	7.033 \| good	0.905 \| good	21.049 \| good	0.8 \| good
2026-01-21T16:00:00.000Z	54 \| moderate	11.408 \| good	46.691 \| good	8.386 \| good	0.995 \| good	23.465 \| good	0.84 \| good
2026-01-21T17:00:00.000Z	56 \| moderate	12.097 \| good	53.3 \| good	11.106 \| good	1.082 \| good	24.128 \| good	0.791 \| good
2026-01-21T18:00:00.000Z	54 \| moderate	10.832 \| good	47.25 \| good	14.303 \| good	0.833 \| good	25.878 \| good	0.724 \| good
2026-01-21T19:00:00.000Z	60 \| moderate	14.364 \| fine	61.888 \| fine	14.385 \| good	0.96 \| good	26.468 \| good	0.736 \| good
2026-01-21T20:00:00.000Z	54 \| moderate	10.591 \| good	46.805 \| good	15.401 \| good	0.748 \| good	25.168 \| good	0.616 \| good
2026-01-21T21:00:00.000Z	44 \| good	8.307 \| good	37.828 \| good	16.392 \| good	0.585 \| good	15.795 \| good	0.645 \| good
2026-01-21T22:00:00.000Z	38 \| good	7.151 \| good	32.429 \| good	16.435 \| good	0.584 \| good	16.626 \| good	0.575 \| good
2026-01-21T23:00:00.000Z	38 \| good	6.873 \| good	28.104 \| good	21.205 \| good	0.567 \| good	20.362 \| good	0.54 \| good
2026-01-22T00:00:00.000Z	52 \| moderate	9.879 \| good	42.603 \| good	18.067 \| good	0.6 \| good	19.038 \| good	0.54 \| good
2026-01-22T01:00:00.000Z	58 \| moderate	12.89 \| fine	55.476 \| fine	14.875 \| good	0.49 \| good	17.189 \| good	0.507 \| good
2026-01-22T02:00:00.000Z	60 \| moderate	14.373 \| fine	54.732 \| good	12.734 \| good	0.478 \| good	28.271 \| good	0.657 \| good
2026-01-22T03:00:00.000Z	64 \| moderate	15.893 \| fine	52.59 \| good	10.314 \| good	0.43 \| good	32.579 \| good	0.673 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	16.803 \| fine	51.131 \| good	6.829 \| good	0.453 \| good	32.524 \| good	0.741 \| good
2026-01-22T05:00:00.000Z	67 \| moderate	17.9 \| fine	54.568 \| good	5.206 \| good	0.648 \| good	33.197 \| good	0.771 \| good
2026-01-22T06:00:00.000Z	69 \| moderate	18.5 \| fine	58.603 \| fine	5.53 \| good	0.545 \| good	34.131 \| good	0.841 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	17.815 \| fine	55.019 \| fine	5.271 \| good	0.562 \| good	33.705 \| good	0.895 \| good
2026-01-22T08:00:00.000Z	66 \| moderate	17.254 \| fine	52.557 \| good	4.331 \| good	0.577 \| good	32.457 \| good	0.807 \| good
2026-01-22T09:00:00.000Z	64 \| moderate	15.664 \| fine	49.705 \| good	4.09 \| good	0.579 \| good	30.721 \| good	0.783 \| good
2026-01-22T10:00:00.000Z	60 \| moderate	13.906 \| fine	44.846 \| good	11.345 \| good	0.587 \| good	26.148 \| good	0.782 \| good
2026-01-22T11:00:00.000Z	60 \| moderate	14.03 \| fine	43.785 \| good	9.093 \| good	0.648 \| good	22.185 \| good	0.668 \| good
2026-01-22T12:00:00.000Z	62 \| moderate	14.512 \| fine	41.857 \| good	4.837 \| good	0.559 \| good	23.349 \| good	0.677 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	14.572 \| fine	41.537 \| good	4.748 \| good	0.56 \| good	22.695 \| good	0.677 \| good
2026-01-22T14:00:00.000Z	67 \| moderate	17.747 \| fine	43.635 \| good	3.93 \| good	0.557 \| good	24.176 \| good	0.72 \| good
2026-01-22T15:00:00.000Z	67 \| moderate	18.49 \| fine	46.853 \| good	5.078 \| good	0.691 \| good	24.835 \| good	0.789 \| good
2026-01-22T16:00:00.000Z	73 \| moderate	21.239 \| fine	57.447 \| fine	7.319 \| good	0.749 \| good	24.329 \| good	0.822 \| good
2026-01-22T17:00:00.000Z	79 \| moderate	23.712 \| fine	66.705 \| fine	8.549 \| good	0.835 \| good	23.197 \| good	0.76 \| good
2026-01-22T18:00:00.000Z	84 \| moderate	27.365 \| fine	74.08 \| fine	9.83 \| good	0.875 \| good	24.491 \| good	0.707 \| good
2026-01-22T19:00:00.000Z	81 \| moderate	25.256 \| fine	67.084 \| fine	11.01 \| good	0.745 \| good	23.817 \| good	0.695 \| good
2026-01-22T20:00:00.000Z	81 \| moderate	24.885 \| fine	61.707 \| fine	11.707 \| good	0.628 \| good	29.176 \| good	0.605 \| good
2026-01-22T21:00:00.000Z	77 \| moderate	23.299 \| fine	59.174 \| fine	12.288 \| good	0.586 \| good	25.132 \| good	0.618 \| good
2026-01-22T22:00:00.000Z	79 \| moderate	23.882 \| fine	63.675 \| fine	19.229 \| good	0.609 \| good	28.556 \| good	0.611 \| good
2026-01-22T23:00:00.000Z	84 \| moderate	27.041 \| fine	74.635 \| fine	17.326 \| good	0.595 \| good	26.503 \| good	0.597 \| good
2026-01-23T00:00:00.000Z	88 \| moderate	28.547 \| fine	78.492 \| fine	9.554 \| good	0.422 \| good	39.222 \| good	0.606 \| good
2026-01-23T01:00:00.000Z	81 \| moderate	25.3 \| fine	68.978 \| fine	7.159 \| good	0.426 \| good	35.203 \| good	0.604 \| good
2026-01-23T02:00:00.000Z	64 \| moderate	16.104 \| fine	62.017 \| fine	5.084 \| good	0.412 \| good	33.706 \| good	0.611 \| good
2026-01-23T03:00:00.000Z	62 \| moderate	14.805 \| fine	59.202 \| fine	4.259 \| good	0.357 \| good	31.085 \| good	0.565 \| good
2026-01-23T04:00:00.000Z	60 \| moderate	13.702 \| fine	53.004 \| good	5.275 \| good	0.356 \| good	31.443 \| good	0.549 \| good
2026-01-23T04:00:00.000Z	66 \| moderate	17.44 \| fine	52.236 \| good	5.863 \| good	0.354 \| good	29.794 \| good	0.559 \| good
2026-01-23T05:00:00.000Z	62 \| moderate	14.93 \| fine	66.584 \| fine	10.181 \| good	3.241 \| good	32.595 \| good	0.424 \| good
2026-01-23T06:00:00.000Z	71 \| moderate	19.6 \| fine	86.566 \| fine	3.669 \| good	3.438 \| good	32.501 \| good	0.464 \| good
2026-01-23T07:00:00.000Z	73 \| moderate	20.897 \| fine	91.954 \| fine	1.618 \| good	3.084 \| good	30.545 \| good	0.444 \| good
2026-01-23T08:00:00.000Z	75 \| moderate	22.053 \| fine	96.738 \| fine	1.983 \| good	2.73 \| good	28.589 \| good	0.423 \| good
2026-01-23T09:00:00.000Z	77 \| moderate	23.139 \| fine	100.87 \| fine	2.171 \| good	2.376 \| good	26.633 \| good	0.403 \| good
2026-01-23T10:00:00.000Z	71 \| moderate	19.963 \| fine	87.915 \| fine	2.271 \| good	2.272 \| good	25.406 \| good	0.381 \| good
2026-01-23T11:00:00.000Z	69 \| moderate	18.764 \| fine	83.041 \| fine	2.856 \| good	2.169 \| good	24.179 \| good	0.359 \| good
2026-01-23T12:00:00.000Z	73 \| moderate	20.581 \| fine	90.673 \| fine	2.147 \| good	2.065 \| good	22.953 \| good	0.337 \| good
2026-01-23T13:00:00.000Z	67 \| moderate	17.636 \| fine	78.075 \| fine	1.78 \| good	2.264 \| good	23.162 \| good	0.344 \| good
2026-01-23T14:00:00.000Z	75 \| moderate	21.674 \| fine	95.129 \| fine	1.461 \| good	2.464 \| good	23.371 \| good	0.35 \| good
2026-01-23T15:00:00.000Z	79 \| moderate	23.685 \| fine	103.016 \| fine	2.038 \| good	2.664 \| good	23.58 \| good	0.357 \| good
2026-01-23T16:00:00.000Z	77 \| moderate	22.576 \| fine	99.154 \| fine	2.944 \| good	2.999 \| good	20.267 \| good	0.315 \| good
2026-01-23T17:00:00.000Z	71 \| moderate	20.331 \| fine	89.598 \| fine	9.824 \| good	3.333 \| good	16.953 \| good	0.272 \| good
2026-01-23T18:00:00.000Z	71 \| moderate	19.786 \| fine	87.117 \| fine	19.223 \| good	3.668 \| good	13.64 \| good	0.23 \| good
2026-01-23T19:00:00.000Z	58 \| moderate	13.335 \| fine	60.065 \| fine	29.501 \| good	2.941 \| good	11.154 \| good	0.202 \| good
2026-01-23T20:00:00.000Z	54 \| moderate	10.969 \| good	48.427 \| good	34.394 \| good	2.215 \| good	8.668 \| good	0.173 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.995 \| good	53.711 \| good	36.228 \| good	1.488 \| good	6.182 \| good	0.144 \| good
2026-01-23T22:00:00.000Z	60 \| moderate	14.308 \| fine	64.21 \| fine	35.503 \| good	1.495 \| good	6.954 \| good	0.145 \| good
2026-01-23T23:00:00.000Z	62 \| moderate	15.336 \| fine	68.274 \| fine	33.715 \| good	1.502 \| good	7.726 \| good	0.146 \| good
2026-01-24T00:00:00.000Z	56 \| moderate	12.138 \| fine	54.254 \| good	32.836 \| good	1.509 \| good	8.499 \| good	0.147 \| good
2026-01-24T01:00:00.000Z	56 \| moderate	12.358 \| fine	55.576 \| fine	29.158 \| good	1.824 \| good	15.174 \| good	0.188 \| good
2026-01-24T02:00:00.000Z	58 \| moderate	13.288 \| fine	60.195 \| fine	18.354 \| good	2.139 \| good	21.849 \| good	0.23 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.955 \| fine	58.557 \| fine	13.637 \| good	2.454 \| good	28.524 \| good	0.271 \| good
2026-01-24T04:00:00.000Z	56 \| moderate	12.337 \| fine	55.338 \| fine	8.654 \| good	2.59 \| good	27.698 \| good	0.27 \| good
2026-01-24T05:00:00.000Z	60 \| moderate	14.001 \| fine	62.877 \| fine	6.39 \| good	2.727 \| good	26.873 \| good	0.269 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	15.779 \| fine	70.473 \| fine	4.882 \| good	2.863 \| good	26.047 \| good	0.268 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	19.248 \| fine	84.855 \| fine	3.204 \| good	2.916 \| good	23.432 \| good	0.249 \| good
2026-01-24T08:00:00.000Z	66 \| moderate	17.248 \| fine	76.656 \| fine	3.648 \| good	2.968 \| good	20.818 \| good	0.23 \| good
2026-01-24T09:00:00.000Z	67 \| moderate	18.112 \| fine	80.303 \| fine	3.735 \| good	3.021 \| good	18.204 \| good	0.212 \| good
2026-01-24T10:00:00.000Z	66 \| moderate	17.348 \| fine	76.893 \| fine	3.18 \| good	3.057 \| good	16.874 \| good	0.2 \| good
2026-01-24T11:00:00.000Z	71 \| moderate	19.912 \| fine	87.85 \| fine	3.287 \| good	3.094 \| good	15.545 \| good	0.189 \| good
2026-01-24T12:00:00.000Z	69 \| moderate	19.124 \| fine	84.435 \| fine	2.93 \| good	3.131 \| good	14.216 \| good	0.178 \| good
2026-01-24T13:00:00.000Z	67 \| moderate	17.622 \| fine	78.596 \| fine	3.034 \| good	3.378 \| good	15.074 \| good	0.184 \| good
2026-01-24T14:00:00.000Z	69 \| moderate	18.674 \| fine	82.413 \| fine	2.835 \| good	3.626 \| good	15.931 \| good	0.19 \| good
2026-01-24T15:00:00.000Z	71 \| moderate	19.507 \| fine	86.351 \| fine	3.141 \| good	3.874 \| good	16.788 \| good	0.196 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	18.055 \| fine	80.035 \| fine	4.535 \| good	3.778 \| good	13.924 \| good	0.184 \| good
2026-01-24T17:00:00.000Z	54 \| moderate	11.443 \| good	51.347 \| good	12.549 \| good	3.683 \| good	11.059 \| good	0.172 \| good
2026-01-24T18:00:00.000Z	49 \| good	9.117 \| good	40.334 \| good	23.486 \| good	3.588 \| good	8.194 \| good	0.16 \| good
2026-01-24T19:00:00.000Z	31 \| good	5.456 \| good	23.78 \| good	32.639 \| good	3.071 \| good	7.022 \| good	0.154 \| good
2026-01-24T20:00:00.000Z	37 \| good	2.897 \| good	12.394 \| good	39.81 \| good	2.554 \| good	5.851 \| good	0.147 \| good
2026-01-24T21:00:00.000Z	40 \| good	1.771 \| good	7.14 \| good	43.141 \| good	2.037 \| good	4.679 \| good	0.14 \| good
2026-01-24T22:00:00.000Z	38 \| good	2.49 \| good	10.481 \| good	40.915 \| good	1.928 \| good	4.74 \| good	0.139 \| good
2026-01-24T23:00:00.000Z	34 \| good	1.677 \| good	6.631 \| good	37.425 \| good	1.819 \| good	4.801 \| good	0.138 \| good
2026-01-25T00:00:00.000Z	44 \| good	8.023 \| good	8.539 \| good	41.529 \| good	1.702 \| good	4.85 \| good	0.137 \| good
2026-01-25T01:00:00.000Z	31 \| good	1.366 \| good	5.503 \| good	34.059 \| good	2.025 \| good	10.743 \| good	0.174 \| good
2026-01-25T02:00:00.000Z	25 \| good	1.805 \| good	7.462 \| good	26.811 \| good	2.339 \| good	16.625 \| good	0.212 \| good
2026-01-25T03:00:00.000Z	22 \| good	2.11 \| good	8.681 \| good	20.537 \| good	2.654 \| good	22.506 \| good	0.249 \| good
2026-01-25T04:00:00.000Z	22 \| good	1.899 \| good	7.946 \| good	17.091 \| good	2.549 \| good	22.564 \| good	0.267 \| good

Grand Terrace

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

0.57ppm

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 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 12:00:00 on 2026-01-23.

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 11:00:00 on 2026-01-22.

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

The current air quality in Grand Terrace, California is 66, categorized as Moderate based on real-time data.

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

The most common pollutant in Grand Terrace, California is PM2.5.

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 17.44 μg/m³.

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

The current PM₁₀ concentration at Grand Terrace, California is 52.236 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 0.559 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 0.354 ppb.

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

The current ozone (O₃) concentration at Grand Terrace, California is 5.863 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 29.794 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T05:00:00.000Z	44 \| good	7.916 \| good	34.798 \| good	12.437 \| good	0.694 \| good	29.02 \| good	0.755 \| good
2026-01-21T06:00:00.000Z	49 \| good	8.527 \| good	34.457 \| good	12.437 \| good	0.499 \| good	28.938 \| good	0.649 \| good
2026-01-21T07:00:00.000Z	44 \| good	8.186 \| good	33.977 \| good	10.061 \| good	0.566 \| good	29.055 \| good	0.648 \| good
2026-01-21T08:00:00.000Z	52 \| moderate	10.286 \| good	41.703 \| good	7.714 \| good	0.648 \| good	24.194 \| good	0.48 \| good
2026-01-21T09:00:00.000Z	49 \| good	8.659 \| good	33.284 \| good	5.764 \| good	0.547 \| good	22.792 \| good	0.497 \| good
2026-01-21T10:00:00.000Z	38 \| good	7.345 \| good	27.337 \| good	5.166 \| good	0.488 \| good	23.678 \| good	0.471 \| good
2026-01-21T11:00:00.000Z	38 \| good	6.567 \| good	24.859 \| good	5.174 \| good	0.56 \| good	22.804 \| good	0.57 \| good
2026-01-21T12:00:00.000Z	33 \| good	6.176 \| good	22.294 \| good	5.628 \| good	0.497 \| good	20.869 \| good	0.503 \| good
2026-01-21T13:00:00.000Z	33 \| good	6.285 \| good	22.905 \| good	5.718 \| good	0.47 \| good	20.948 \| good	0.503 \| good
2026-01-21T14:00:00.000Z	38 \| good	6.932 \| good	24.51 \| good	5.742 \| good	0.753 \| good	21.559 \| good	0.616 \| good
2026-01-21T15:00:00.000Z	38 \| good	7.487 \| good	29.063 \| good	7.033 \| good	0.905 \| good	21.049 \| good	0.8 \| good
2026-01-21T16:00:00.000Z	54 \| moderate	11.408 \| good	46.691 \| good	8.386 \| good	0.995 \| good	23.465 \| good	0.84 \| good
2026-01-21T17:00:00.000Z	56 \| moderate	12.097 \| good	53.3 \| good	11.106 \| good	1.082 \| good	24.128 \| good	0.791 \| good
2026-01-21T18:00:00.000Z	54 \| moderate	10.832 \| good	47.25 \| good	14.303 \| good	0.833 \| good	25.878 \| good	0.724 \| good
2026-01-21T19:00:00.000Z	60 \| moderate	14.364 \| fine	61.888 \| fine	14.385 \| good	0.96 \| good	26.468 \| good	0.736 \| good
2026-01-21T20:00:00.000Z	54 \| moderate	10.591 \| good	46.805 \| good	15.401 \| good	0.748 \| good	25.168 \| good	0.616 \| good
2026-01-21T21:00:00.000Z	44 \| good	8.307 \| good	37.828 \| good	16.392 \| good	0.585 \| good	15.795 \| good	0.645 \| good
2026-01-21T22:00:00.000Z	38 \| good	7.151 \| good	32.429 \| good	16.435 \| good	0.584 \| good	16.626 \| good	0.575 \| good
2026-01-21T23:00:00.000Z	38 \| good	6.873 \| good	28.104 \| good	21.205 \| good	0.567 \| good	20.362 \| good	0.54 \| good
2026-01-22T00:00:00.000Z	52 \| moderate	9.879 \| good	42.603 \| good	18.067 \| good	0.6 \| good	19.038 \| good	0.54 \| good
2026-01-22T01:00:00.000Z	58 \| moderate	12.89 \| fine	55.476 \| fine	14.875 \| good	0.49 \| good	17.189 \| good	0.507 \| good
2026-01-22T02:00:00.000Z	60 \| moderate	14.373 \| fine	54.732 \| good	12.734 \| good	0.478 \| good	28.271 \| good	0.657 \| good
2026-01-22T03:00:00.000Z	64 \| moderate	15.893 \| fine	52.59 \| good	10.314 \| good	0.43 \| good	32.579 \| good	0.673 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	16.803 \| fine	51.131 \| good	6.829 \| good	0.453 \| good	32.524 \| good	0.741 \| good
2026-01-22T05:00:00.000Z	67 \| moderate	17.9 \| fine	54.568 \| good	5.206 \| good	0.648 \| good	33.197 \| good	0.771 \| good
2026-01-22T06:00:00.000Z	69 \| moderate	18.5 \| fine	58.603 \| fine	5.53 \| good	0.545 \| good	34.131 \| good	0.841 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	17.815 \| fine	55.019 \| fine	5.271 \| good	0.562 \| good	33.705 \| good	0.895 \| good
2026-01-22T08:00:00.000Z	66 \| moderate	17.254 \| fine	52.557 \| good	4.331 \| good	0.577 \| good	32.457 \| good	0.807 \| good
2026-01-22T09:00:00.000Z	64 \| moderate	15.664 \| fine	49.705 \| good	4.09 \| good	0.579 \| good	30.721 \| good	0.783 \| good
2026-01-22T10:00:00.000Z	60 \| moderate	13.906 \| fine	44.846 \| good	11.345 \| good	0.587 \| good	26.148 \| good	0.782 \| good
2026-01-22T11:00:00.000Z	60 \| moderate	14.03 \| fine	43.785 \| good	9.093 \| good	0.648 \| good	22.185 \| good	0.668 \| good
2026-01-22T12:00:00.000Z	62 \| moderate	14.512 \| fine	41.857 \| good	4.837 \| good	0.559 \| good	23.349 \| good	0.677 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	14.572 \| fine	41.537 \| good	4.748 \| good	0.56 \| good	22.695 \| good	0.677 \| good
2026-01-22T14:00:00.000Z	67 \| moderate	17.747 \| fine	43.635 \| good	3.93 \| good	0.557 \| good	24.176 \| good	0.72 \| good
2026-01-22T15:00:00.000Z	67 \| moderate	18.49 \| fine	46.853 \| good	5.078 \| good	0.691 \| good	24.835 \| good	0.789 \| good
2026-01-22T16:00:00.000Z	73 \| moderate	21.239 \| fine	57.447 \| fine	7.319 \| good	0.749 \| good	24.329 \| good	0.822 \| good
2026-01-22T17:00:00.000Z	79 \| moderate	23.712 \| fine	66.705 \| fine	8.549 \| good	0.835 \| good	23.197 \| good	0.76 \| good
2026-01-22T18:00:00.000Z	84 \| moderate	27.365 \| fine	74.08 \| fine	9.83 \| good	0.875 \| good	24.491 \| good	0.707 \| good
2026-01-22T19:00:00.000Z	81 \| moderate	25.256 \| fine	67.084 \| fine	11.01 \| good	0.745 \| good	23.817 \| good	0.695 \| good
2026-01-22T20:00:00.000Z	81 \| moderate	24.885 \| fine	61.707 \| fine	11.707 \| good	0.628 \| good	29.176 \| good	0.605 \| good
2026-01-22T21:00:00.000Z	77 \| moderate	23.299 \| fine	59.174 \| fine	12.288 \| good	0.586 \| good	25.132 \| good	0.618 \| good
2026-01-22T22:00:00.000Z	79 \| moderate	23.882 \| fine	63.675 \| fine	19.229 \| good	0.609 \| good	28.556 \| good	0.611 \| good
2026-01-22T23:00:00.000Z	84 \| moderate	27.041 \| fine	74.635 \| fine	17.326 \| good	0.595 \| good	26.503 \| good	0.597 \| good
2026-01-23T00:00:00.000Z	88 \| moderate	28.547 \| fine	78.492 \| fine	9.554 \| good	0.422 \| good	39.222 \| good	0.606 \| good
2026-01-23T01:00:00.000Z	81 \| moderate	25.3 \| fine	68.978 \| fine	7.159 \| good	0.426 \| good	35.203 \| good	0.604 \| good
2026-01-23T02:00:00.000Z	64 \| moderate	16.104 \| fine	62.017 \| fine	5.084 \| good	0.412 \| good	33.706 \| good	0.611 \| good
2026-01-23T03:00:00.000Z	62 \| moderate	14.805 \| fine	59.202 \| fine	4.259 \| good	0.357 \| good	31.085 \| good	0.565 \| good
2026-01-23T04:00:00.000Z	60 \| moderate	13.702 \| fine	53.004 \| good	5.275 \| good	0.356 \| good	31.443 \| good	0.549 \| good
2026-01-23T04:00:00.000Z	66 \| moderate	17.44 \| fine	52.236 \| good	5.863 \| good	0.354 \| good	29.794 \| good	0.559 \| good
2026-01-23T05:00:00.000Z	62 \| moderate	14.93 \| fine	66.584 \| fine	10.181 \| good	3.241 \| good	32.595 \| good	0.424 \| good
2026-01-23T06:00:00.000Z	71 \| moderate	19.6 \| fine	86.566 \| fine	3.669 \| good	3.438 \| good	32.501 \| good	0.464 \| good
2026-01-23T07:00:00.000Z	73 \| moderate	20.897 \| fine	91.954 \| fine	1.618 \| good	3.084 \| good	30.545 \| good	0.444 \| good
2026-01-23T08:00:00.000Z	75 \| moderate	22.053 \| fine	96.738 \| fine	1.983 \| good	2.73 \| good	28.589 \| good	0.423 \| good
2026-01-23T09:00:00.000Z	77 \| moderate	23.139 \| fine	100.87 \| fine	2.171 \| good	2.376 \| good	26.633 \| good	0.403 \| good
2026-01-23T10:00:00.000Z	71 \| moderate	19.963 \| fine	87.915 \| fine	2.271 \| good	2.272 \| good	25.406 \| good	0.381 \| good
2026-01-23T11:00:00.000Z	69 \| moderate	18.764 \| fine	83.041 \| fine	2.856 \| good	2.169 \| good	24.179 \| good	0.359 \| good
2026-01-23T12:00:00.000Z	73 \| moderate	20.581 \| fine	90.673 \| fine	2.147 \| good	2.065 \| good	22.953 \| good	0.337 \| good
2026-01-23T13:00:00.000Z	67 \| moderate	17.636 \| fine	78.075 \| fine	1.78 \| good	2.264 \| good	23.162 \| good	0.344 \| good
2026-01-23T14:00:00.000Z	75 \| moderate	21.674 \| fine	95.129 \| fine	1.461 \| good	2.464 \| good	23.371 \| good	0.35 \| good
2026-01-23T15:00:00.000Z	79 \| moderate	23.685 \| fine	103.016 \| fine	2.038 \| good	2.664 \| good	23.58 \| good	0.357 \| good
2026-01-23T16:00:00.000Z	77 \| moderate	22.576 \| fine	99.154 \| fine	2.944 \| good	2.999 \| good	20.267 \| good	0.315 \| good
2026-01-23T17:00:00.000Z	71 \| moderate	20.331 \| fine	89.598 \| fine	9.824 \| good	3.333 \| good	16.953 \| good	0.272 \| good
2026-01-23T18:00:00.000Z	71 \| moderate	19.786 \| fine	87.117 \| fine	19.223 \| good	3.668 \| good	13.64 \| good	0.23 \| good
2026-01-23T19:00:00.000Z	58 \| moderate	13.335 \| fine	60.065 \| fine	29.501 \| good	2.941 \| good	11.154 \| good	0.202 \| good
2026-01-23T20:00:00.000Z	54 \| moderate	10.969 \| good	48.427 \| good	34.394 \| good	2.215 \| good	8.668 \| good	0.173 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.995 \| good	53.711 \| good	36.228 \| good	1.488 \| good	6.182 \| good	0.144 \| good
2026-01-23T22:00:00.000Z	60 \| moderate	14.308 \| fine	64.21 \| fine	35.503 \| good	1.495 \| good	6.954 \| good	0.145 \| good
2026-01-23T23:00:00.000Z	62 \| moderate	15.336 \| fine	68.274 \| fine	33.715 \| good	1.502 \| good	7.726 \| good	0.146 \| good
2026-01-24T00:00:00.000Z	56 \| moderate	12.138 \| fine	54.254 \| good	32.836 \| good	1.509 \| good	8.499 \| good	0.147 \| good
2026-01-24T01:00:00.000Z	56 \| moderate	12.358 \| fine	55.576 \| fine	29.158 \| good	1.824 \| good	15.174 \| good	0.188 \| good
2026-01-24T02:00:00.000Z	58 \| moderate	13.288 \| fine	60.195 \| fine	18.354 \| good	2.139 \| good	21.849 \| good	0.23 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.955 \| fine	58.557 \| fine	13.637 \| good	2.454 \| good	28.524 \| good	0.271 \| good
2026-01-24T04:00:00.000Z	56 \| moderate	12.337 \| fine	55.338 \| fine	8.654 \| good	2.59 \| good	27.698 \| good	0.27 \| good
2026-01-24T05:00:00.000Z	60 \| moderate	14.001 \| fine	62.877 \| fine	6.39 \| good	2.727 \| good	26.873 \| good	0.269 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	15.779 \| fine	70.473 \| fine	4.882 \| good	2.863 \| good	26.047 \| good	0.268 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	19.248 \| fine	84.855 \| fine	3.204 \| good	2.916 \| good	23.432 \| good	0.249 \| good
2026-01-24T08:00:00.000Z	66 \| moderate	17.248 \| fine	76.656 \| fine	3.648 \| good	2.968 \| good	20.818 \| good	0.23 \| good
2026-01-24T09:00:00.000Z	67 \| moderate	18.112 \| fine	80.303 \| fine	3.735 \| good	3.021 \| good	18.204 \| good	0.212 \| good
2026-01-24T10:00:00.000Z	66 \| moderate	17.348 \| fine	76.893 \| fine	3.18 \| good	3.057 \| good	16.874 \| good	0.2 \| good
2026-01-24T11:00:00.000Z	71 \| moderate	19.912 \| fine	87.85 \| fine	3.287 \| good	3.094 \| good	15.545 \| good	0.189 \| good
2026-01-24T12:00:00.000Z	69 \| moderate	19.124 \| fine	84.435 \| fine	2.93 \| good	3.131 \| good	14.216 \| good	0.178 \| good
2026-01-24T13:00:00.000Z	67 \| moderate	17.622 \| fine	78.596 \| fine	3.034 \| good	3.378 \| good	15.074 \| good	0.184 \| good
2026-01-24T14:00:00.000Z	69 \| moderate	18.674 \| fine	82.413 \| fine	2.835 \| good	3.626 \| good	15.931 \| good	0.19 \| good
2026-01-24T15:00:00.000Z	71 \| moderate	19.507 \| fine	86.351 \| fine	3.141 \| good	3.874 \| good	16.788 \| good	0.196 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	18.055 \| fine	80.035 \| fine	4.535 \| good	3.778 \| good	13.924 \| good	0.184 \| good
2026-01-24T17:00:00.000Z	54 \| moderate	11.443 \| good	51.347 \| good	12.549 \| good	3.683 \| good	11.059 \| good	0.172 \| good
2026-01-24T18:00:00.000Z	49 \| good	9.117 \| good	40.334 \| good	23.486 \| good	3.588 \| good	8.194 \| good	0.16 \| good
2026-01-24T19:00:00.000Z	31 \| good	5.456 \| good	23.78 \| good	32.639 \| good	3.071 \| good	7.022 \| good	0.154 \| good
2026-01-24T20:00:00.000Z	37 \| good	2.897 \| good	12.394 \| good	39.81 \| good	2.554 \| good	5.851 \| good	0.147 \| good
2026-01-24T21:00:00.000Z	40 \| good	1.771 \| good	7.14 \| good	43.141 \| good	2.037 \| good	4.679 \| good	0.14 \| good
2026-01-24T22:00:00.000Z	38 \| good	2.49 \| good	10.481 \| good	40.915 \| good	1.928 \| good	4.74 \| good	0.139 \| good
2026-01-24T23:00:00.000Z	34 \| good	1.677 \| good	6.631 \| good	37.425 \| good	1.819 \| good	4.801 \| good	0.138 \| good
2026-01-25T00:00:00.000Z	44 \| good	8.023 \| good	8.539 \| good	41.529 \| good	1.702 \| good	4.85 \| good	0.137 \| good
2026-01-25T01:00:00.000Z	31 \| good	1.366 \| good	5.503 \| good	34.059 \| good	2.025 \| good	10.743 \| good	0.174 \| good
2026-01-25T02:00:00.000Z	25 \| good	1.805 \| good	7.462 \| good	26.811 \| good	2.339 \| good	16.625 \| good	0.212 \| good
2026-01-25T03:00:00.000Z	22 \| good	2.11 \| good	8.681 \| good	20.537 \| good	2.654 \| good	22.506 \| good	0.249 \| good
2026-01-25T04:00:00.000Z	22 \| good	1.899 \| good	7.946 \| good	17.091 \| good	2.549 \| good	22.564 \| good	0.267 \| 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)

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Air quality in nearby cities

Colton, California

Loma Linda, California

Riverside, California

San Bernardino, California

Bloomington, California

Rialto, California

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Frequently asked questions

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

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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?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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