What is the current concentration of PM10 in Ontario, New York?

The current PM10 concentration at Ontario, New York is 24.903 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Ontario, New York?

The current sulfur dioxide (SO2) concentration at Ontario, New York is 2.555 ppb.

What is the current concentration of ozone (O3) in Ontario, New York?

The current ozone (O3) concentration at Ontario, New York is 38.651 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Ontario, New York?

The current nitrogen dioxide (NO2) concentration at Ontario, New York is 1.524 ppb.

Ontario, New York live air quality index now

Q: What is the current concentration of PM2.5 in Ontario, New York?

The current PM2.5 concentration at Ontario, New York is 5.717 μg/m3.

Stay updated with real-time air quality in Ontario, New York 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

Ontario, New York

Last updated: ... (Local time)

Major air pollutants in Ontario, New York

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.72 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

24.90 μg/m³

155

255

425

605+

Ozone (O₃)

38.65 ppb

201

201+

Sulfur Dioxide (SO₂)

2.56 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.52 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Ontario, New York

Scroll To Air Quality Map

Track live Ontario, New York air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-19T22:00:00.000Z	54 \| moderate	11.38 \| good	51.193 \| good	38.922 \| good	0.597 \| good	3.118 \| good	0.287 \| good
2026-03-19T23:00:00.000Z	54 \| moderate	10.795 \| good	48.594 \| good	38.796 \| good	0.628 \| good	4.812 \| good	0.254 \| good
2026-03-20T00:00:00.000Z	54 \| moderate	11.089 \| good	49.792 \| good	36.038 \| good	0.382 \| good	4.508 \| good	0.255 \| good
2026-03-20T01:00:00.000Z	60 \| moderate	14.301 \| fine	62.505 \| fine	33.067 \| good	0.187 \| good	3.981 \| good	0.273 \| good
2026-03-20T02:00:00.000Z	56 \| moderate	11.981 \| good	53.012 \| good	31.968 \| good	0.238 \| good	3.316 \| good	0.255 \| good
2026-03-20T03:00:00.000Z	56 \| moderate	11.683 \| good	51.301 \| good	34.009 \| good	0.273 \| good	5.946 \| good	0.485 \| good
2026-03-20T04:00:00.000Z	54 \| moderate	10.853 \| good	48.382 \| good	34.029 \| good	0.504 \| good	3.608 \| good	0.278 \| good
2026-03-20T05:00:00.000Z	44 \| good	7.981 \| good	34.158 \| good	32.77 \| good	0.139 \| good	4.461 \| good	0.258 \| good
2026-03-20T06:00:00.000Z	49 \| good	9.459 \| good	33.216 \| good	31.441 \| good	0.302 \| good	8.847 \| good	0.256 \| good
2026-03-20T07:00:00.000Z	44 \| good	7.928 \| good	42.777 \| good	24.699 \| good	0.299 \| good	9.893 \| good	0.323 \| good
2026-03-20T08:00:00.000Z	52 \| moderate	9.769 \| good	43.84 \| good	13.128 \| good	0.457 \| good	8.763 \| good	0.33 \| good
2026-03-20T09:00:00.000Z	54 \| moderate	10.656 \| good	50.406 \| good	8.839 \| good	0.118 \| good	13.422 \| good	0.273 \| good
2026-03-20T10:00:00.000Z	54 \| moderate	11.069 \| good	49.88 \| good	7.102 \| good	0.145 \| good	13.965 \| good	0.245 \| good
2026-03-20T11:00:00.000Z	56 \| moderate	11.574 \| good	52.718 \| good	9.832 \| good	0.151 \| good	10.486 \| good	0.31 \| good
2026-03-20T12:00:00.000Z	56 \| moderate	12.05 \| good	43.801 \| good	26.044 \| good	0.228 \| good	8.926 \| good	0.299 \| good
2026-03-20T13:00:00.000Z	58 \| moderate	12.554 \| fine	54.991 \| good	23.268 \| good	0.253 \| good	7.276 \| good	0.322 \| good
2026-03-20T14:00:00.000Z	60 \| moderate	13.733 \| fine	59.615 \| fine	25.214 \| good	0.494 \| good	5.679 \| good	0.301 \| good
2026-03-20T15:00:00.000Z	60 \| moderate	13.681 \| fine	61.525 \| fine	24.278 \| good	0.507 \| good	5.246 \| good	0.3 \| good
2026-03-20T16:00:00.000Z	60 \| moderate	14.146 \| fine	64.272 \| fine	23.35 \| good	0.927 \| good	5.711 \| good	0.298 \| good
2026-03-20T17:00:00.000Z	60 \| moderate	13.91 \| fine	41.745 \| good	26.296 \| good	0.314 \| good	5.207 \| good	0.313 \| good
2026-03-20T18:00:00.000Z	58 \| moderate	13.459 \| fine	52.133 \| good	28.309 \| good	0.259 \| good	4.343 \| good	0.308 \| good
2026-03-20T19:00:00.000Z	58 \| moderate	13.085 \| fine	56.978 \| fine	30.799 \| good	0.198 \| good	4.368 \| good	0.345 \| good
2026-03-20T20:00:00.000Z	54 \| moderate	10.711 \| good	36.261 \| good	30.655 \| good	0.204 \| good	4.645 \| good	0.336 \| good
2026-03-20T21:00:00.000Z	60 \| moderate	14.14 \| fine	54.359 \| good	24.109 \| good	0.479 \| good	4.234 \| good	0.349 \| good
2026-03-20T22:00:00.000Z	58 \| moderate	12.716 \| fine	58.078 \| fine	26.138 \| good	0.945 \| good	4.016 \| good	0.37 \| good
2026-03-20T23:00:00.000Z	58 \| moderate	13.155 \| fine	57.888 \| fine	26.157 \| good	2.086 \| good	3.149 \| good	0.307 \| good
2026-03-21T00:00:00.000Z	54 \| moderate	10.81 \| good	49.457 \| good	27.242 \| good	1.735 \| good	3.627 \| good	0.331 \| good
2026-03-21T01:00:00.000Z	52 \| moderate	10.421 \| good	47.302 \| good	27.296 \| good	1.999 \| good	3.709 \| good	0.32 \| good
2026-03-21T02:00:00.000Z	56 \| moderate	11.666 \| good	52.435 \| good	28.283 \| good	1.221 \| good	3.898 \| good	0.336 \| good
2026-03-21T03:00:00.000Z	44 \| good	8.411 \| good	37.067 \| good	33.82 \| good	0.44 \| good	5.805 \| good	0.246 \| good
2026-03-21T04:00:00.000Z	56 \| moderate	11.658 \| good	51.921 \| good	29.179 \| good	0.591 \| good	5.604 \| good	0.319 \| good
2026-03-21T05:00:00.000Z	56 \| moderate	12.073 \| good	58.129 \| fine	29.978 \| good	0.641 \| good	5.286 \| good	0.35 \| good
2026-03-21T06:00:00.000Z	56 \| moderate	12.276 \| fine	54.349 \| good	28.891 \| good	0.502 \| good	4.942 \| good	0.319 \| good
2026-03-21T07:00:00.000Z	52 \| moderate	9.661 \| good	42.208 \| good	29.601 \| good	0.907 \| good	4.99 \| good	0.309 \| good
2026-03-21T08:00:00.000Z	49 \| good	9.363 \| good	41.392 \| good	28.065 \| good	0.935 \| good	4.154 \| good	0.328 \| good
2026-03-21T09:00:00.000Z	44 \| good	8.153 \| good	36.955 \| good	30.159 \| good	0.79 \| good	3.612 \| good	0.296 \| good
2026-03-21T10:00:00.000Z	44 \| good	7.98 \| good	35.619 \| good	30.144 \| good	0.725 \| good	3.763 \| good	0.341 \| good
2026-03-21T11:00:00.000Z	44 \| good	7.916 \| good	35.947 \| good	29.144 \| good	0.658 \| good	4.875 \| good	0.396 \| good
2026-03-21T12:00:00.000Z	44 \| good	7.851 \| good	34.695 \| good	28.136 \| good	0.567 \| good	5.605 \| good	0.451 \| good
2026-03-21T13:00:00.000Z	38 \| good	6.928 \| good	25.636 \| good	27.641 \| good	0.617 \| good	7.537 \| good	0.483 \| good
2026-03-21T14:00:00.000Z	44 \| good	8.121 \| good	35.782 \| good	27.333 \| good	0.589 \| good	4.16 \| good	0.374 \| good
2026-03-21T15:00:00.000Z	44 \| good	8.018 \| good	35.352 \| good	26.465 \| good	1.121 \| good	3.515 \| good	0.301 \| good
2026-03-21T16:00:00.000Z	33 \| good	6.23 \| good	35.098 \| good	31.394 \| good	2.269 \| good	2.087 \| good	0.302 \| good
2026-03-21T17:00:00.000Z	44 \| good	7.657 \| good	33.445 \| good	30.309 \| good	1.211 \| good	2.046 \| good	0.246 \| good
2026-03-21T18:00:00.000Z	38 \| good	7.294 \| good	33.049 \| good	30.486 \| good	1.02 \| good	1.551 \| good	0.226 \| good
2026-03-21T19:00:00.000Z	38 \| good	7.278 \| good	31.844 \| good	32.394 \| good	2.209 \| good	1.48 \| good	0.25 \| good
2026-03-21T20:00:00.000Z	33 \| good	6.204 \| good	16.371 \| good	35.394 \| good	4.958 \| good	1.516 \| good	0.245 \| good
2026-03-21T21:00:00.000Z	33 \| good	5.817 \| good	25.719 \| good	33.55 \| good	2.831 \| good	1.518 \| good	0.219 \| good
2026-03-21T21:00:00.000Z	36 \| good	5.717 \| good	24.903 \| good	38.651 \| good	2.555 \| good	1.524 \| good	0.224 \| good
2026-03-21T22:00:00.000Z	49 \| good	9.287 \| good	41.196 \| good	41.735 \| good	0.143 \| good	1.906 \| good	0.173 \| good
2026-03-21T23:00:00.000Z	44 \| good	7.807 \| good	34.06 \| good	40.823 \| good	0.151 \| good	2.483 \| good	0.178 \| good
2026-03-22T00:00:00.000Z	39 \| good	7.373 \| good	32.229 \| good	41.72 \| good	0.158 \| good	3.06 \| good	0.182 \| good
2026-03-22T01:00:00.000Z	44 \| good	8.332 \| good	36.828 \| good	39.405 \| good	0.163 \| good	2.797 \| good	0.18 \| good
2026-03-22T02:00:00.000Z	38 \| good	6.713 \| good	30.033 \| good	37.037 \| good	0.167 \| good	2.533 \| good	0.178 \| good
2026-03-22T03:00:00.000Z	52 \| moderate	10.098 \| good	45.02 \| good	36.318 \| good	0.172 \| good	2.269 \| good	0.177 \| good
2026-03-22T04:00:00.000Z	54 \| moderate	10.883 \| good	48.026 \| good	38.348 \| good	0.196 \| good	2.316 \| good	0.178 \| good
2026-03-22T05:00:00.000Z	52 \| moderate	9.649 \| good	43.01 \| good	36.879 \| good	0.22 \| good	2.363 \| good	0.18 \| good
2026-03-22T06:00:00.000Z	49 \| good	8.96 \| good	39.185 \| good	34.682 \| good	0.244 \| good	2.41 \| good	0.182 \| good
2026-03-22T07:00:00.000Z	31 \| good	4.59 \| good	20.028 \| good	33.323 \| good	0.581 \| good	2.382 \| good	0.181 \| good
2026-03-22T08:00:00.000Z	33 \| good	5.748 \| good	25.009 \| good	30.106 \| good	0.918 \| good	2.354 \| good	0.18 \| good
2026-03-22T09:00:00.000Z	38 \| good	6.707 \| good	29.907 \| good	28.146 \| good	1.255 \| good	2.326 \| good	0.18 \| good
2026-03-22T10:00:00.000Z	49 \| good	9.362 \| good	41.94 \| good	28.565 \| good	1.746 \| good	3.114 \| good	0.187 \| good
2026-03-22T11:00:00.000Z	49 \| good	9.431 \| good	42.132 \| good	28.456 \| good	2.237 \| good	3.901 \| good	0.195 \| good
2026-03-22T12:00:00.000Z	56 \| moderate	12.145 \| fine	54.711 \| good	29.04 \| good	2.727 \| good	4.688 \| good	0.203 \| good
2026-03-22T13:00:00.000Z	56 \| moderate	11.603 \| good	50.935 \| good	33.997 \| good	2.386 \| good	4.987 \| good	0.209 \| good
2026-03-22T14:00:00.000Z	60 \| moderate	14.092 \| fine	63.14 \| fine	35.326 \| good	2.044 \| good	5.286 \| good	0.215 \| good
2026-03-22T15:00:00.000Z	58 \| moderate	12.919 \| fine	57.623 \| fine	27.126 \| good	1.703 \| good	5.585 \| good	0.221 \| good
2026-03-22T16:00:00.000Z	28 \| good	5.338 \| good	23.131 \| good	30.219 \| good	1.397 \| good	5.413 \| good	0.22 \| good
2026-03-22T17:00:00.000Z	33 \| good	5.907 \| good	26.468 \| good	36.491 \| good	1.092 \| good	5.24 \| good	0.219 \| good
2026-03-22T18:00:00.000Z	33 \| good	5.848 \| good	25.063 \| good	33.592 \| good	0.787 \| good	5.068 \| good	0.218 \| good
2026-03-22T19:00:00.000Z	44 \| good	8.389 \| good	36.726 \| good	36.054 \| good	0.675 \| good	4.841 \| good	0.214 \| good
2026-03-22T20:00:00.000Z	56 \| moderate	12.117 \| fine	54.4 \| good	36.181 \| good	0.563 \| good	4.614 \| good	0.21 \| good
2026-03-22T21:00:00.000Z	54 \| moderate	11.438 \| good	50.858 \| good	40.569 \| good	0.45 \| good	4.387 \| good	0.206 \| good
2026-03-22T22:00:00.000Z	49 \| good	9.455 \| good	42.326 \| good	44.179 \| good	0.454 \| good	4.587 \| good	0.207 \| good
2026-03-22T23:00:00.000Z	44 \| good	4.69 \| good	20.252 \| good	46.541 \| good	0.458 \| good	4.787 \| good	0.207 \| good
2026-03-23T00:00:00.000Z	42 \| good	3.791 \| good	16.358 \| good	45.026 \| good	0.462 \| good	4.987 \| good	0.208 \| good
2026-03-23T01:00:00.000Z	40 \| good	2.606 \| good	10.3 \| good	42.601 \| good	0.487 \| good	4.218 \| good	0.202 \| good
2026-03-23T02:00:00.000Z	38 \| good	4.072 \| good	17.991 \| good	41.363 \| good	0.512 \| good	3.45 \| good	0.195 \| good
2026-03-23T03:00:00.000Z	37 \| good	3.344 \| good	15.034 \| good	40.281 \| good	0.537 \| good	2.681 \| good	0.189 \| good
2026-03-23T04:00:00.000Z	38 \| good	2.15 \| good	8.984 \| good	40.856 \| good	0.508 \| good	2.279 \| good	0.185 \| good
2026-03-23T05:00:00.000Z	39 \| good	2.497 \| good	10.026 \| good	41.767 \| good	0.479 \| good	1.877 \| good	0.18 \| good
2026-03-23T06:00:00.000Z	43 \| good	3.108 \| good	3.307 \| good	45.895 \| good	0.451 \| good	1.476 \| good	0.176 \| good
2026-03-23T07:00:00.000Z	35 \| good	4.278 \| good	18.929 \| good	37.854 \| good	0.411 \| good	1.279 \| good	0.173 \| good
2026-03-23T08:00:00.000Z	33 \| good	3.948 \| good	17.139 \| good	36.197 \| good	0.373 \| good	1.081 \| good	0.169 \| good
2026-03-23T09:00:00.000Z	31 \| good	2.369 \| good	9.923 \| good	33.93 \| good	0.334 \| good	0.884 \| good	0.166 \| good
2026-03-23T10:00:00.000Z	34 \| good	0.373 \| good	1.199 \| good	36.748 \| good	0.33 \| good	0.908 \| good	0.163 \| good
2026-03-23T11:00:00.000Z	31 \| good	1.844 \| good	7.899 \| good	32.967 \| good	0.327 \| good	0.931 \| good	0.161 \| good
2026-03-23T12:00:00.000Z	44 \| good	2.53 \| good	2.892 \| good	47.386 \| good	0.323 \| good	0.955 \| good	0.158 \| good
2026-03-23T13:00:00.000Z	44 \| good	2.596 \| good	2.985 \| good	47.343 \| good	0.315 \| good	0.958 \| good	0.158 \| good
2026-03-23T14:00:00.000Z	44 \| good	2.586 \| good	3.007 \| good	47.301 \| good	0.307 \| good	0.96 \| good	0.158 \| good
2026-03-23T15:00:00.000Z	44 \| good	2.536 \| good	2.974 \| good	47.258 \| good	0.299 \| good	0.962 \| good	0.158 \| good
2026-03-23T16:00:00.000Z	31 \| good	2.363 \| good	9.984 \| good	33.448 \| good	0.288 \| good	0.844 \| good	0.158 \| good
2026-03-23T17:00:00.000Z	33 \| good	4.029 \| good	17.87 \| good	35.823 \| good	0.277 \| good	0.728 \| good	0.158 \| good
2026-03-23T18:00:00.000Z	46 \| good	2.572 \| good	3.11 \| good	49.697 \| good	0.267 \| good	0.613 \| good	0.158 \| good
2026-03-23T19:00:00.000Z	46 \| good	2.525 \| good	3.14 \| good	50.221 \| good	0.259 \| good	0.604 \| good	0.156 \| good
2026-03-23T20:00:00.000Z	47 \| good	2.442 \| good	3.199 \| good	50.746 \| good	0.251 \| good	0.594 \| good	0.154 \| good
2026-03-23T21:00:00.000Z	47 \| good	2.393 \| good	3.282 \| good	51.27 \| good	0.244 \| good	0.585 \| good	0.152 \| good

Ontario

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Ontario, New York air quality map: Track AQI near you

0.24ppm

How accurate is New York, USA air quality data?

Air quality data and pollutant measurements for New York, 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 Ontario, New York updated?

The air quality for Ontario, New York is updated every hour.

When was the worst air quality at Ontario, New York in the last 24 hrs?

The worst air quality in Ontario, New York in the last 24 hours was observed at 09:00:00 on 2026-03-20.

When was the best air quality at Ontario, New York in the last 24 hrs?

In the last 24 hrs, the best air quality in Ontario, New York was observed at 08:00:00 on 2026-03-21.

What is the current air quality in Ontario, New York?

The current air quality in Ontario, New York is 36, categorized as Good based on real-time data.

What pollutant is the most common in Ontario, New York?

The most common pollutant in Ontario, New York is O3.

What should I do if the air quality in Ontario, New York is poor?

If the air quality in Ontario, New York is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Ontario, New York?

The current PM_2.5 concentration at Ontario, New York is 5.717 μg/m³.

What is the current concentration of PM₁₀ in Ontario, New York?

The current PM₁₀ concentration at Ontario, New York is 24.903 μg/m³.

What is the current concentration of carbon monoxide (CO) in Ontario, New York?

The current carbon monoxide (CO) concentration at Ontario, New York is 0.224 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Ontario, New York?

The current sulfur dioxide (SO₂) concentration at Ontario, New York is 2.555 ppb.

What is the current concentration of ozone (O₃) in Ontario, New York?

The current ozone (O₃) concentration at Ontario, New York is 38.651 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Ontario, New York?

The current nitrogen dioxide (NO₂) concentration at Ontario, New York is 1.524 ppb.

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