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

The current PM10 concentration at Smithtown, New York is 17.434 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Smithtown, New York is 0.17 ppb.

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

The current ozone (O3) concentration at Smithtown, New York is 30.919 ppm.

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

The current nitrogen dioxide (NO2) concentration at Smithtown, New York is 4.081 ppb.

Smithtown, New York live air quality index now

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

The current PM2.5 concentration at Smithtown, New York is 4.813 μg/m3.

Stay updated with real-time air quality in Smithtown, 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

Smithtown, New York

Last updated: ... (Local time)

Major air pollutants in Smithtown, New York

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.81 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.43 μg/m³

155

255

425

605+

Ozone (O₃)

30.92 ppb

201

201+

Sulfur Dioxide (SO₂)

0.17 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.08 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Smithtown, New York

Scroll To Air Quality Map

Track live Smithtown, New York air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-20T07:00:00.000Z	33 \| good	6.021 \| good	23.731 \| good	30.217 \| good	0.202 \| good	10.709 \| good	0.33 \| good
2026-03-20T08:00:00.000Z	38 \| good	7.02 \| good	37.191 \| good	15.801 \| good	0.204 \| good	11.876 \| good	0.277 \| good
2026-03-20T09:00:00.000Z	38 \| good	6.941 \| good	32.204 \| good	17.518 \| good	0.252 \| good	10.739 \| good	0.289 \| good
2026-03-20T10:00:00.000Z	44 \| good	7.633 \| good	28.774 \| good	12.595 \| good	0.413 \| good	22.895 \| good	0.274 \| good
2026-03-20T11:00:00.000Z	49 \| good	8.596 \| good	24.795 \| good	31.319 \| good	0.509 \| good	20.712 \| good	0.378 \| good
2026-03-20T12:00:00.000Z	52 \| moderate	10.39 \| good	20.445 \| good	29.847 \| good	0.709 \| good	18.026 \| good	0.465 \| good
2026-03-20T13:00:00.000Z	38 \| good	6.558 \| good	28.115 \| good	23.844 \| good	0.596 \| good	20.743 \| good	0.464 \| good
2026-03-20T14:00:00.000Z	38 \| good	6.534 \| good	31.576 \| good	29.464 \| good	0.433 \| good	15.823 \| good	0.348 \| good
2026-03-20T15:00:00.000Z	44 \| good	8.04 \| good	29.465 \| good	33.09 \| good	0.52 \| good	15.706 \| good	0.351 \| good
2026-03-20T16:00:00.000Z	44 \| good	7.728 \| good	32.893 \| good	26.95 \| good	2.576 \| good	10.892 \| good	0.351 \| good
2026-03-20T17:00:00.000Z	38 \| good	6.642 \| good	31.972 \| good	27.502 \| good	0.494 \| good	11.817 \| good	0.351 \| good
2026-03-20T18:00:00.000Z	49 \| good	9.483 \| good	39.972 \| good	34.733 \| good	0.506 \| good	7.651 \| good	0.267 \| good
2026-03-20T19:00:00.000Z	44 \| good	7.916 \| good	36.132 \| good	31.828 \| good	0.407 \| good	4.031 \| good	0.262 \| good
2026-03-20T20:00:00.000Z	44 \| good	8.146 \| good	40.834 \| good	39.212 \| good	0.342 \| good	6.408 \| good	0.262 \| good
2026-03-20T21:00:00.000Z	44 \| good	8.402 \| good	28.643 \| good	43.352 \| good	0.334 \| good	5.406 \| good	0.248 \| good
2026-03-20T22:00:00.000Z	44 \| good	7.661 \| good	24.06 \| good	43.863 \| good	0.31 \| good	5.419 \| good	0.264 \| good
2026-03-20T23:00:00.000Z	49 \| good	8.917 \| good	38.082 \| good	47.249 \| good	0.256 \| good	9.496 \| good	0.266 \| good
2026-03-21T00:00:00.000Z	49 \| good	9.452 \| good	31.436 \| good	45.265 \| good	0.165 \| good	7.596 \| good	0.264 \| good
2026-03-21T01:00:00.000Z	54 \| moderate	10.97 \| good	35.27 \| good	44.86 \| good	0.152 \| good	7.43 \| good	0.248 \| good
2026-03-21T02:00:00.000Z	54 \| moderate	11.137 \| good	39.176 \| good	44.562 \| good	0.184 \| good	8.303 \| good	0.282 \| good
2026-03-21T03:00:00.000Z	44 \| good	8.497 \| good	37.471 \| good	37.435 \| good	0.944 \| good	5.161 \| good	0.158 \| good
2026-03-21T04:00:00.000Z	62 \| moderate	15.381 \| fine	68.185 \| fine	42.564 \| good	0.171 \| good	7.718 \| good	0.227 \| good
2026-03-21T05:00:00.000Z	60 \| moderate	13.98 \| fine	51.542 \| good	39.593 \| good	0.202 \| good	6.388 \| good	0.227 \| good
2026-03-21T06:00:00.000Z	58 \| moderate	13.473 \| fine	35.487 \| good	35.622 \| good	0.171 \| good	4.337 \| good	0.265 \| good
2026-03-21T07:00:00.000Z	58 \| moderate	12.529 \| fine	32.713 \| good	24.422 \| good	0.172 \| good	8.198 \| good	0.265 \| good
2026-03-21T08:00:00.000Z	60 \| moderate	14.075 \| fine	63.763 \| fine	28.546 \| good	0.195 \| good	21.075 \| good	0.243 \| good
2026-03-21T09:00:00.000Z	62 \| moderate	14.632 \| fine	42.305 \| good	23.892 \| good	0.178 \| good	22.817 \| good	0.243 \| good
2026-03-21T10:00:00.000Z	69 \| moderate	18.927 \| fine	84.296 \| fine	26.502 \| good	0.175 \| good	29.876 \| good	0.316 \| good
2026-03-21T11:00:00.000Z	69 \| moderate	18.782 \| fine	80.53 \| fine	26.653 \| good	0.321 \| good	29.875 \| good	0.376 \| good
2026-03-21T12:00:00.000Z	58 \| moderate	12.632 \| fine	47.13 \| good	30.141 \| good	0.204 \| good	24.755 \| good	0.36 \| good
2026-03-21T13:00:00.000Z	67 \| moderate	18.388 \| fine	69.742 \| fine	20.038 \| good	0.274 \| good	24.575 \| good	0.387 \| good
2026-03-21T14:00:00.000Z	56 \| moderate	11.704 \| good	62.449 \| fine	21.771 \| good	0.178 \| good	5.32 \| good	0.193 \| good
2026-03-21T15:00:00.000Z	38 \| good	6.884 \| good	24.439 \| good	28.077 \| good	0.138 \| good	4.949 \| good	0.186 \| good
2026-03-21T16:00:00.000Z	33 \| good	6.452 \| good	33.54 \| good	32.052 \| good	0.126 \| good	5.32 \| good	0.19 \| good
2026-03-21T17:00:00.000Z	33 \| good	5.37 \| good	26.321 \| good	36.18 \| good	0.143 \| good	3.666 \| good	0.209 \| good
2026-03-21T18:00:00.000Z	34 \| good	3.365 \| good	11.192 \| good	36.524 \| good	0.168 \| good	3.508 \| good	0.219 \| good
2026-03-21T19:00:00.000Z	35 \| good	3.993 \| good	18.538 \| good	37.589 \| good	0.141 \| good	3.138 \| good	0.174 \| good
2026-03-21T20:00:00.000Z	34 \| good	2.977 \| good	11.802 \| good	37.487 \| good	0.129 \| good	3.329 \| good	0.203 \| good
2026-03-21T21:00:00.000Z	37 \| good	3.051 \| good	12.128 \| good	40.431 \| good	0.132 \| good	3.882 \| good	0.203 \| good
2026-03-21T22:00:00.000Z	39 \| good	2.918 \| good	11.061 \| good	41.864 \| good	0.188 \| good	5.747 \| good	0.203 \| good
2026-03-21T23:00:00.000Z	38 \| good	3.522 \| good	13.859 \| good	41.098 \| good	0.253 \| good	3.081 \| good	0.221 \| good
2026-03-22T00:00:00.000Z	36 \| good	3.456 \| good	14.308 \| good	39.422 \| good	0.162 \| good	4.249 \| good	0.221 \| good
2026-03-22T01:00:00.000Z	36 \| good	3.934 \| good	11.37 \| good	38.799 \| good	0.125 \| good	6.199 \| good	0.221 \| good
2026-03-22T02:00:00.000Z	36 \| good	4.023 \| good	18.337 \| good	39.282 \| good	0.124 \| good	5.467 \| good	0.272 \| good
2026-03-22T03:00:00.000Z	31 \| good	3.765 \| good	14.317 \| good	34.22 \| good	0.118 \| good	5.547 \| good	0.237 \| good
2026-03-22T04:00:00.000Z	31 \| good	4.382 \| good	9.99 \| good	33.217 \| good	0.122 \| good	6.414 \| good	0.237 \| good
2026-03-22T05:00:00.000Z	29 \| good	4.813 \| good	17.434 \| good	30.919 \| good	0.17 \| good	4.081 \| good	0.255 \| good
2026-03-22T06:00:00.000Z	33 \| good	5.845 \| good	17.778 \| good	28.957 \| good	0.114 \| good	5.964 \| good	0.237 \| good
2026-03-22T06:00:00.000Z	29 \| good	4.813 \| good	17.434 \| good	30.919 \| good	0.17 \| good	4.081 \| good	0.255 \| good
2026-03-22T07:00:00.000Z	44 \| good	7.988 \| good	35.082 \| good	17.318 \| good	0.602 \| good	4.414 \| good	0.2 \| good
2026-03-22T08:00:00.000Z	49 \| good	8.689 \| good	37.801 \| good	28.018 \| good	0.603 \| good	3.296 \| good	0.196 \| good
2026-03-22T09:00:00.000Z	54 \| moderate	10.815 \| good	48.389 \| good	30.223 \| good	0.604 \| good	2.178 \| good	0.192 \| good
2026-03-22T10:00:00.000Z	58 \| moderate	12.621 \| fine	56.994 \| fine	29.047 \| good	0.631 \| good	2.456 \| good	0.196 \| good
2026-03-22T11:00:00.000Z	54 \| moderate	11.288 \| good	50.031 \| good	26.737 \| good	0.658 \| good	2.734 \| good	0.199 \| good
2026-03-22T12:00:00.000Z	54 \| moderate	11.44 \| good	50.451 \| good	30.352 \| good	0.686 \| good	3.012 \| good	0.203 \| good
2026-03-22T13:00:00.000Z	52 \| moderate	10.198 \| good	45.288 \| good	37.105 \| good	0.728 \| good	2.938 \| good	0.203 \| good
2026-03-22T14:00:00.000Z	54 \| moderate	10.91 \| good	48.148 \| good	39.137 \| good	0.77 \| good	2.864 \| good	0.203 \| good
2026-03-22T15:00:00.000Z	54 \| moderate	10.957 \| good	48.118 \| good	39.022 \| good	0.812 \| good	2.79 \| good	0.203 \| good
2026-03-22T16:00:00.000Z	54 \| moderate	10.871 \| good	47.855 \| good	40.883 \| good	0.852 \| good	3.056 \| good	0.201 \| good
2026-03-22T17:00:00.000Z	54 \| moderate	11.014 \| good	48.838 \| good	43.93 \| good	0.892 \| good	3.323 \| good	0.199 \| good
2026-03-22T18:00:00.000Z	54 \| moderate	11.25 \| good	49.945 \| good	43.776 \| good	0.932 \| good	3.589 \| good	0.197 \| good
2026-03-22T19:00:00.000Z	58 \| moderate	13.082 \| fine	59.136 \| fine	43.058 \| good	0.879 \| good	4.417 \| good	0.202 \| good
2026-03-22T20:00:00.000Z	62 \| moderate	15.08 \| fine	66.887 \| fine	40.137 \| good	0.827 \| good	5.245 \| good	0.207 \| good
2026-03-22T21:00:00.000Z	66 \| moderate	17.434 \| fine	76.965 \| fine	37.248 \| good	0.774 \| good	6.073 \| good	0.212 \| good
2026-03-22T22:00:00.000Z	66 \| moderate	16.521 \| fine	73.044 \| fine	34.866 \| good	0.835 \| good	8.075 \| good	0.241 \| good
2026-03-22T23:00:00.000Z	69 \| moderate	19.393 \| fine	86.103 \| fine	33.072 \| good	0.895 \| good	10.077 \| good	0.271 \| good
2026-03-23T00:00:00.000Z	73 \| moderate	20.764 \| fine	91.92 \| fine	26.929 \| good	0.956 \| good	12.079 \| good	0.3 \| good
2026-03-23T01:00:00.000Z	77 \| moderate	22.947 \| fine	100.612 \| fine	23.464 \| good	1.117 \| good	13.283 \| good	0.301 \| good
2026-03-23T02:00:00.000Z	75 \| moderate	21.533 \| fine	94.577 \| fine	20.838 \| good	1.278 \| good	14.488 \| good	0.301 \| good
2026-03-23T03:00:00.000Z	73 \| moderate	20.985 \| fine	92.191 \| fine	20.34 \| good	1.439 \| good	15.692 \| good	0.302 \| good
2026-03-23T04:00:00.000Z	71 \| moderate	20.021 \| fine	88.171 \| fine	19.896 \| good	1.604 \| good	15.923 \| good	0.296 \| good
2026-03-23T05:00:00.000Z	62 \| moderate	14.623 \| fine	65.504 \| fine	23.178 \| good	1.769 \| good	16.153 \| good	0.291 \| good
2026-03-23T06:00:00.000Z	49 \| good	9.126 \| good	40.818 \| good	26.317 \| good	1.934 \| good	16.384 \| good	0.285 \| good
2026-03-23T07:00:00.000Z	28 \| good	4.391 \| good	19.239 \| good	30.337 \| good	1.6 \| good	12.289 \| good	0.255 \| good
2026-03-23T08:00:00.000Z	29 \| good	2.341 \| good	9.943 \| good	30.511 \| good	1.265 \| good	8.195 \| good	0.226 \| good
2026-03-23T09:00:00.000Z	31 \| good	1.323 \| good	5.152 \| good	33.835 \| good	0.931 \| good	4.1 \| good	0.196 \| good
2026-03-23T10:00:00.000Z	30 \| good	1.376 \| good	5.173 \| good	32.358 \| good	0.893 \| good	4.358 \| good	0.201 \| good
2026-03-23T11:00:00.000Z	29 \| good	1.252 \| good	5.024 \| good	31.059 \| good	0.856 \| good	4.616 \| good	0.206 \| good
2026-03-23T12:00:00.000Z	28 \| good	1.461 \| good	6.118 \| good	30.022 \| good	0.819 \| good	4.874 \| good	0.212 \| good
2026-03-23T13:00:00.000Z	30 \| good	0.39 \| good	1.219 \| good	32.433 \| good	0.797 \| good	4.698 \| good	0.212 \| good
2026-03-23T14:00:00.000Z	29 \| good	0.339 \| good	1.152 \| good	31.434 \| good	0.776 \| good	4.522 \| good	0.212 \| good
2026-03-23T15:00:00.000Z	30 \| good	1.193 \| good	4.947 \| good	31.639 \| good	0.755 \| good	4.346 \| good	0.213 \| good
2026-03-23T16:00:00.000Z	31 \| good	1.275 \| good	5.018 \| good	34.316 \| good	0.73 \| good	4.148 \| good	0.21 \| good
2026-03-23T17:00:00.000Z	33 \| good	2.074 \| good	8.136 \| good	35.661 \| good	0.705 \| good	3.949 \| good	0.207 \| good
2026-03-23T18:00:00.000Z	34 \| good	2.437 \| good	10.071 \| good	36.857 \| good	0.68 \| good	3.75 \| good	0.204 \| good
2026-03-23T19:00:00.000Z	33 \| good	3.015 \| good	12.307 \| good	36.312 \| good	0.713 \| good	5.122 \| good	0.207 \| good
2026-03-23T20:00:00.000Z	34 \| good	3.855 \| good	17.037 \| good	36.514 \| good	0.746 \| good	6.494 \| good	0.21 \| good
2026-03-23T21:00:00.000Z	34 \| good	6.096 \| good	26.913 \| good	36.878 \| good	0.778 \| good	7.866 \| good	0.212 \| good
2026-03-23T22:00:00.000Z	49 \| good	8.529 \| good	36.999 \| good	37.88 \| good	0.732 \| good	8.804 \| good	0.21 \| good
2026-03-23T23:00:00.000Z	49 \| good	9.34 \| good	42.03 \| good	39.613 \| good	0.685 \| good	9.742 \| good	0.208 \| good
2026-03-24T00:00:00.000Z	49 \| good	8.532 \| good	37.335 \| good	31.131 \| good	0.639 \| good	10.681 \| good	0.206 \| good
2026-03-24T01:00:00.000Z	27 \| good	5.122 \| good	22.228 \| good	29.243 \| good	0.61 \| good	8.834 \| good	0.195 \| good
2026-03-24T02:00:00.000Z	27 \| good	3.25 \| good	14.039 \| good	29.325 \| good	0.58 \| good	6.988 \| good	0.184 \| good
2026-03-24T03:00:00.000Z	28 \| good	2.957 \| good	12.084 \| good	30.454 \| good	0.551 \| good	5.142 \| good	0.174 \| good
2026-03-24T04:00:00.000Z	30 \| good	3.083 \| good	12.307 \| good	32.149 \| good	0.503 \| good	4.153 \| good	0.168 \| good
2026-03-24T05:00:00.000Z	30 \| good	2.445 \| good	10.046 \| good	32.283 \| good	0.456 \| good	3.165 \| good	0.162 \| good
2026-03-24T06:00:00.000Z	43 \| good	2.387 \| good	2.551 \| good	45.996 \| good	0.409 \| good	2.171 \| good	0.157 \| good

Smithtown

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

0.27ppm

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 Smithtown, New York updated?

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

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

The worst air quality in Smithtown, New York in the last 24 hours was observed at 11:00:00 on 2026-03-21.

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

In the last 24 hrs, the best air quality in Smithtown, New York was observed at 05:00:00 on 2026-03-22.

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

The current air quality in Smithtown, New York is 29, categorized as Good based on real-time data.

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

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

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

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

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

The current PM_2.5 concentration at Smithtown, New York is 4.813 μg/m³.

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

The current PM₁₀ concentration at Smithtown, New York is 17.434 μg/m³.

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

The current carbon monoxide (CO) concentration at Smithtown, New York is 0.255 ppm.

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

The current sulfur dioxide (SO₂) concentration at Smithtown, New York is 0.17 ppb.

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

The current ozone (O₃) concentration at Smithtown, New York is 30.919 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Smithtown, New York is 4.081 ppb.

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