What is the current concentration of PM10 in Greenwich, Connecticut?

The current PM10 concentration at Greenwich, Connecticut is 43.299 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Greenwich, Connecticut?

The current sulfur dioxide (SO2) concentration at Greenwich, Connecticut is 0.579 ppb.

What is the current concentration of ozone (O3) in Greenwich, Connecticut?

The current ozone (O3) concentration at Greenwich, Connecticut is 18.682 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Greenwich, Connecticut?

The current nitrogen dioxide (NO2) concentration at Greenwich, Connecticut is 17.859 ppb.

Live air quality index in Greenwich, Connecticut today

Name: Live air pollution levels in Greenwich, Connecticut today
Creator: Ambee

Stay updated with real-time air quality in Greenwich, Connecticut 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

Greenwich, Connecticut

Last updated: ... (Local time)

Major air pollutants in Greenwich, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.86 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

43.30 μg/m³

155

255

425

605+

Ozone (O₃)

18.68 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.86 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.36 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Greenwich, Connecticut

Get Live Pollen Counts

Greenwich, Connecticut

Scroll To Air Quality Map

Track live Greenwich, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T13:00:00.000Z	62 \| moderate	14.623 \| fine	68.204 \| fine	10.348 \| good	0.719 \| good	23.271 \| good	0.451 \| good
2025-06-05T14:00:00.000Z	66 \| moderate	16.75 \| fine	72.342 \| fine	22.431 \| good	0.711 \| good	23.403 \| good	0.452 \| good
2025-06-05T15:00:00.000Z	64 \| moderate	16.292 \| fine	64.011 \| fine	24.373 \| good	0.92 \| good	19.52 \| good	0.492 \| good
2025-06-05T16:00:00.000Z	69 \| moderate	18.995 \| fine	56.231 \| fine	34.921 \| good	0.969 \| good	19.859 \| good	0.538 \| good
2025-06-05T17:00:00.000Z	64 \| moderate	15.644 \| fine	50.439 \| good	50.646 \| good	0.753 \| good	17.568 \| good	0.475 \| good
2025-06-05T18:00:00.000Z	71 \| moderate	13.233 \| fine	95.403 \| fine	50.646 \| good	0.779 \| good	19.87 \| good	0.42 \| good
2025-06-05T19:00:00.000Z	80 \| moderate	19.266 \| fine	43.914 \| good	64.129 \| fine	0.887 \| good	9.985 \| good	0.46 \| good
2025-06-05T20:00:00.000Z	119 \| sensitive	21.557 \| fine	86.89 \| fine	76.154 \| moderate	0.869 \| good	11.222 \| good	0.522 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	21.164 \| fine	61.964 \| fine	79.598 \| moderate	0.76 \| good	13.759 \| good	0.475 \| good
2025-06-05T22:00:00.000Z	136 \| sensitive	22.2 \| fine	93.748 \| fine	80.905 \| moderate	0.728 \| good	7.735 \| good	0.427 \| good
2025-06-05T23:00:00.000Z	119 \| sensitive	19.022 \| fine	77.417 \| fine	75.942 \| moderate	0.643 \| good	18.184 \| good	0.402 \| good
2025-06-06T00:00:00.000Z	93 \| moderate	20.427 \| fine	76.811 \| fine	68.016 \| fine	0.548 \| good	12.939 \| good	0.48 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	19.238 \| fine	85.051 \| fine	62.12 \| fine	0.731 \| good	12.395 \| good	0.402 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	19.959 \| fine	80.928 \| fine	52.708 \| good	1.334 \| good	14.406 \| good	0.395 \| good
2025-06-06T03:00:00.000Z	71 \| moderate	20.441 \| fine	85.202 \| fine	36.863 \| good	1.394 \| good	10.373 \| good	0.378 \| good
2025-06-06T04:00:00.000Z	67 \| moderate	17.579 \| fine	58.987 \| fine	36.863 \| good	0.697 \| good	9.868 \| good	0.34 \| good
2025-06-06T05:00:00.000Z	66 \| moderate	17.367 \| fine	54.417 \| good	27.349 \| good	0.567 \| good	11.494 \| good	0.339 \| good
2025-06-06T06:00:00.000Z	64 \| moderate	16.499 \| fine	77.411 \| fine	22.672 \| good	0.56 \| good	19.744 \| good	0.326 \| good
2025-06-06T07:00:00.000Z	64 \| moderate	16.246 \| fine	73.998 \| fine	22.672 \| good	0.595 \| good	21.582 \| good	0.294 \| good
2025-06-06T08:00:00.000Z	62 \| moderate	15.151 \| fine	68.696 \| fine	21.439 \| good	0.477 \| good	13.064 \| good	0.294 \| good
2025-06-06T09:00:00.000Z	66 \| moderate	17.083 \| fine	58.537 \| fine	22.698 \| good	0.581 \| good	15.786 \| good	0.294 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.684 \| fine	46.855 \| good	25.947 \| good	0.622 \| good	19.905 \| good	0.294 \| good
2025-06-06T11:00:00.000Z	64 \| moderate	15.935 \| fine	67.698 \| fine	19.167 \| good	0.453 \| good	22.842 \| good	0.388 \| good
2025-06-06T12:00:00.000Z	66 \| moderate	16.987 \| fine	70.963 \| fine	21.372 \| good	0.478 \| good	24.204 \| good	0.435 \| good
2025-06-06T13:00:00.000Z	64 \| moderate	16.289 \| fine	62.597 \| fine	20.942 \| good	0.698 \| good	19.843 \| good	0.444 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	17.56 \| fine	73.622 \| fine	22.092 \| good	0.539 \| good	19.552 \| good	0.43 \| good
2025-06-06T15:00:00.000Z	69 \| moderate	18.509 \| fine	75.998 \| fine	30.92 \| good	0.569 \| good	25.526 \| good	0.46 \| good
2025-06-06T16:00:00.000Z	71 \| moderate	19.705 \| fine	70.301 \| fine	38.36 \| good	0.602 \| good	14.003 \| good	0.468 \| good
2025-06-06T17:00:00.000Z	75 \| moderate	22.032 \| fine	90.951 \| fine	43.929 \| good	0.615 \| good	12.86 \| good	0.468 \| good
2025-06-06T18:00:00.000Z	73 \| moderate	21.257 \| fine	88.559 \| fine	52.877 \| good	0.521 \| good	14.026 \| good	0.468 \| good
2025-06-06T19:00:00.000Z	87 \| moderate	20.151 \| fine	70.313 \| fine	66.142 \| fine	0.639 \| good	7.691 \| good	0.414 \| good
2025-06-06T20:00:00.000Z	100 \| moderate	16.96 \| fine	71.78 \| fine	69.945 \| fine	0.624 \| good	9.067 \| good	0.413 \| good
2025-06-06T21:00:00.000Z	101 \| sensitive	16.721 \| fine	72.275 \| fine	70.852 \| fine	0.63 \| good	15.515 \| good	0.437 \| good
2025-06-06T22:00:00.000Z	84 \| moderate	14.895 \| fine	72.806 \| fine	64.549 \| fine	0.506 \| good	13.629 \| good	0.411 \| good
2025-06-06T23:00:00.000Z	60 \| moderate	13.951 \| fine	63.223 \| fine	57.445 \| fine	0.492 \| good	18.504 \| good	0.428 \| good
2025-06-07T00:00:00.000Z	62 \| moderate	15.278 \| fine	64.182 \| fine	53.909 \| good	0.41 \| good	15.926 \| good	0.396 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.04 \| fine	55.996 \| fine	53.675 \| good	0.389 \| good	15.081 \| good	0.421 \| good
2025-06-07T02:00:00.000Z	60 \| moderate	13.948 \| fine	47.072 \| good	44.261 \| good	0.583 \| good	17.176 \| good	0.398 \| good
2025-06-07T03:00:00.000Z	62 \| moderate	14.64 \| fine	47.495 \| good	30.042 \| good	0.638 \| good	13.135 \| good	0.351 \| good
2025-06-07T04:00:00.000Z	62 \| moderate	15.276 \| fine	61.051 \| fine	30.042 \| good	0.646 \| good	16.023 \| good	0.343 \| good
2025-06-07T05:00:00.000Z	58 \| moderate	13.13 \| fine	33.347 \| good	33.675 \| good	0.862 \| good	18.736 \| good	0.426 \| good
2025-06-07T06:00:00.000Z	62 \| moderate	15.492 \| fine	58.308 \| fine	30.181 \| good	0.828 \| good	18.824 \| good	0.401 \| good
2025-06-07T07:00:00.000Z	54 \| moderate	11.387 \| good	41.319 \| good	28.586 \| good	0.654 \| good	25.689 \| good	0.383 \| good
2025-06-07T08:00:00.000Z	52 \| moderate	10.017 \| good	38.234 \| good	18.953 \| good	0.622 \| good	15.573 \| good	0.393 \| good
2025-06-07T09:00:00.000Z	56 \| moderate	12.078 \| good	29.804 \| good	23.448 \| good	0.542 \| good	13.117 \| good	0.373 \| good
2025-06-07T10:00:00.000Z	54 \| moderate	10.539 \| good	29.798 \| good	21.194 \| good	0.649 \| good	25.15 \| good	0.334 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.859 \| good	43.299 \| good	18.682 \| good	0.579 \| good	17.859 \| good	0.358 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	11.859 \| good	43.299 \| good	18.682 \| good	0.579 \| good	17.859 \| good	0.358 \| good
2025-06-07T13:00:00.000Z	44 \| good	7.802 \| good	34.557 \| good	29.024 \| good	2.042 \| good	9.059 \| good	0.182 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	9.606 \| good	42.694 \| good	30.546 \| good	1.909 \| good	9.194 \| good	0.178 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	11.421 \| good	51.008 \| good	34.178 \| good	1.776 \| good	9.33 \| good	0.174 \| good
2025-06-07T16:00:00.000Z	54 \| moderate	11.196 \| good	49.86 \| good	39.28 \| good	1.665 \| good	5.875 \| good	0.203 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	12.31 \| fine	54.618 \| good	43.522 \| good	1.661 \| good	6.216 \| good	0.199 \| good
2025-06-07T18:00:00.000Z	58 \| moderate	12.771 \| fine	57.086 \| fine	49.604 \| good	1.658 \| good	6.556 \| good	0.194 \| good
2025-06-07T19:00:00.000Z	54 \| moderate	11.203 \| good	49.879 \| good	56.374 \| fine	1.188 \| good	5.639 \| good	0.217 \| good
2025-06-07T20:00:00.000Z	48 \| good	8.455 \| good	37.249 \| good	52.464 \| good	1.19 \| good	5.918 \| good	0.214 \| good
2025-06-07T21:00:00.000Z	62 \| moderate	15.402 \| fine	68.565 \| fine	51.061 \| good	1.192 \| good	6.196 \| good	0.21 \| good
2025-06-07T22:00:00.000Z	69 \| moderate	18.687 \| fine	82.382 \| fine	46.666 \| good	0.866 \| good	9.515 \| good	0.255 \| good
2025-06-07T23:00:00.000Z	67 \| moderate	18.22 \| fine	80.981 \| fine	43.985 \| good	0.867 \| good	9.578 \| good	0.25 \| good
2025-06-08T00:00:00.000Z	62 \| moderate	15.052 \| fine	67.164 \| fine	44.006 \| good	0.868 \| good	9.642 \| good	0.244 \| good
2025-06-08T01:00:00.000Z	62 \| moderate	14.585 \| fine	65.46 \| fine	38.424 \| good	1.014 \| good	13.302 \| good	0.29 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	15.627 \| fine	69.793 \| fine	37.507 \| good	0.977 \| good	13.167 \| good	0.283 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	15.15 \| fine	67.66 \| fine	34.999 \| good	0.94 \| good	13.033 \| good	0.275 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.16 \| fine	54.148 \| good	30.961 \| good	0.909 \| good	8.545 \| good	0.282 \| good
2025-06-08T05:00:00.000Z	54 \| moderate	11.391 \| good	50.576 \| good	27.64 \| good	0.854 \| good	8.122 \| good	0.276 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	13.158 \| fine	59.398 \| fine	24.613 \| good	0.8 \| good	7.698 \| good	0.27 \| good
2025-06-08T07:00:00.000Z	54 \| moderate	11.107 \| good	49.059 \| good	16.699 \| good	0.964 \| good	4.672 \| good	0.294 \| good
2025-06-08T08:00:00.000Z	52 \| moderate	9.846 \| good	43.854 \| good	13.782 \| good	0.909 \| good	4.442 \| good	0.292 \| good
2025-06-08T09:00:00.000Z	54 \| moderate	10.755 \| good	47.328 \| good	13.387 \| good	0.855 \| good	4.212 \| good	0.291 \| good
2025-06-08T10:00:00.000Z	56 \| moderate	11.695 \| good	51.979 \| good	13.754 \| good	1.022 \| good	3.972 \| good	0.314 \| good
2025-06-08T11:00:00.000Z	58 \| moderate	13.208 \| fine	59.602 \| fine	16.949 \| good	0.909 \| good	3.871 \| good	0.305 \| good
2025-06-08T12:00:00.000Z	56 \| moderate	11.613 \| good	51.659 \| good	21.902 \| good	0.795 \| good	3.769 \| good	0.296 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.449 \| fine	68.903 \| fine	23.168 \| good	0.586 \| good	3.639 \| good	0.264 \| good
2025-06-08T14:00:00.000Z	67 \| moderate	17.816 \| fine	79.317 \| fine	28.732 \| good	0.533 \| good	3.641 \| good	0.253 \| good
2025-06-08T15:00:00.000Z	71 \| moderate	20.426 \| fine	89.764 \| fine	32.712 \| good	0.48 \| good	3.642 \| good	0.242 \| good
2025-06-08T16:00:00.000Z	67 \| moderate	18.292 \| fine	80.754 \| fine	39.475 \| good	0.566 \| good	3.287 \| good	0.239 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	12.555 \| fine	55.804 \| fine	43.654 \| good	0.517 \| good	3.166 \| good	0.23 \| good
2025-06-08T18:00:00.000Z	58 \| moderate	12.886 \| fine	57.202 \| fine	46.511 \| good	0.468 \| good	3.045 \| good	0.222 \| good
2025-06-08T19:00:00.000Z	62 \| moderate	15.466 \| fine	69.011 \| fine	55.466 \| fine	0.689 \| good	3.863 \| good	0.23 \| good
2025-06-08T20:00:00.000Z	60 \| moderate	14.344 \| fine	64.699 \| fine	53.074 \| good	0.635 \| good	3.709 \| good	0.222 \| good
2025-06-08T21:00:00.000Z	56 \| moderate	12.075 \| good	54.011 \| good	52.189 \| good	0.582 \| good	3.556 \| good	0.214 \| good
2025-06-08T22:00:00.000Z	54 \| moderate	11.112 \| good	49.064 \| good	48.257 \| good	0.811 \| good	8.295 \| good	0.251 \| good
2025-06-08T23:00:00.000Z	52 \| moderate	10.369 \| good	45.924 \| good	43.921 \| good	0.757 \| good	8.018 \| good	0.242 \| good
2025-06-09T00:00:00.000Z	49 \| good	8.6 \| good	37.597 \| good	43.132 \| good	0.704 \| good	7.74 \| good	0.234 \| good
2025-06-09T01:00:00.000Z	44 \| good	8.114 \| good	35.739 \| good	41.238 \| good	1.145 \| good	10.039 \| good	0.228 \| good
2025-06-09T02:00:00.000Z	44 \| good	7.614 \| good	33.394 \| good	44.122 \| good	1.046 \| good	9.482 \| good	0.224 \| good
2025-06-09T03:00:00.000Z	41 \| good	6.43 \| good	28.311 \| good	44.006 \| good	0.946 \| good	8.926 \| good	0.22 \| good
2025-06-09T04:00:00.000Z	38 \| good	7.271 \| good	32.379 \| good	38.095 \| good	1.553 \| good	11.468 \| good	0.216 \| good
2025-06-09T05:00:00.000Z	44 \| good	8.16 \| good	35.688 \| good	35.415 \| good	1.382 \| good	10.942 \| good	0.22 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	9.878 \| good	11.016 \| good	29.505 \| good	1.218 \| good	10.53 \| good	0.227 \| good
2025-06-09T07:00:00.000Z	44 \| good	7.941 \| good	34.783 \| good	30.372 \| good	1.785 \| good	12.031 \| good	0.224 \| good
2025-06-09T08:00:00.000Z	38 \| good	6.749 \| good	29.798 \| good	29.861 \| good	1.574 \| good	11.395 \| good	0.229 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.596 \| good	33.39 \| good	29.074 \| good	1.364 \| good	10.76 \| good	0.235 \| good
2025-06-09T10:00:00.000Z	49 \| good	8.593 \| good	37.575 \| good	26.632 \| good	1.413 \| good	6.797 \| good	0.239 \| good
2025-06-09T11:00:00.000Z	44 \| good	8.274 \| good	36.406 \| good	26.063 \| good	1.259 \| good	6.278 \| good	0.243 \| good
2025-06-09T12:00:00.000Z	49 \| good	8.935 \| good	9.433 \| good	36.545 \| good	1.117 \| good	5.769 \| good	0.248 \| good

Greenwich

Get reliable air quality data to drive your business

Greenwich, Connecticut air quality map: Track AQI near you

0.38ppm

How accurate is Connecticut, USA air quality data?

Air quality data and pollutant measurements for Connecticut, 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 Greenwich, Connecticut updated?

The air quality for Greenwich, Connecticut is updated every hour.

When was the worst air quality at Greenwich, Connecticut in the last 24 hrs?

The worst air quality in Greenwich, Connecticut in the last 24 hours was observed at 09:00:00 on 2025-06-06.

When was the best air quality at Greenwich, Connecticut in the last 24 hrs?

In the last 24 hrs, the best air quality in Greenwich, Connecticut was observed at 08:00:00 on 2025-06-07.

What is the current air quality in Greenwich, Connecticut?

The current air quality in Greenwich, Connecticut is 56, categorized as Moderate based on real-time data.

What pollutant is the most common in Greenwich, Connecticut?

The most common pollutant in Greenwich, Connecticut is PM2.5.

What should I do if the air quality in Greenwich, Connecticut is poor?

If the air quality in Greenwich, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Greenwich, Connecticut?

The current PM_2.5 concentration at Greenwich, Connecticut is 11.859 μg/m³.

What is the current concentration of PM₁₀ in Greenwich, Connecticut?

The current PM₁₀ concentration at Greenwich, Connecticut is 43.299 μg/m³.

What is the current concentration of carbon monoxide (CO) in Greenwich, Connecticut?

The current carbon monoxide (CO) concentration at Greenwich, Connecticut is 0.358 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Greenwich, Connecticut?

The current sulfur dioxide (SO₂) concentration at Greenwich, Connecticut is 0.579 ppb.

What is the current concentration of ozone (O₃) in Greenwich, Connecticut?

The current ozone (O₃) concentration at Greenwich, Connecticut is 18.682 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Greenwich, Connecticut?

The current nitrogen dioxide (NO₂) concentration at Greenwich, Connecticut is 17.859 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T13:00:00.000Z	62 \| moderate	14.623 \| fine	68.204 \| fine	10.348 \| good	0.719 \| good	23.271 \| good	0.451 \| good
2025-06-05T14:00:00.000Z	66 \| moderate	16.75 \| fine	72.342 \| fine	22.431 \| good	0.711 \| good	23.403 \| good	0.452 \| good
2025-06-05T15:00:00.000Z	64 \| moderate	16.292 \| fine	64.011 \| fine	24.373 \| good	0.92 \| good	19.52 \| good	0.492 \| good
2025-06-05T16:00:00.000Z	69 \| moderate	18.995 \| fine	56.231 \| fine	34.921 \| good	0.969 \| good	19.859 \| good	0.538 \| good
2025-06-05T17:00:00.000Z	64 \| moderate	15.644 \| fine	50.439 \| good	50.646 \| good	0.753 \| good	17.568 \| good	0.475 \| good
2025-06-05T18:00:00.000Z	71 \| moderate	13.233 \| fine	95.403 \| fine	50.646 \| good	0.779 \| good	19.87 \| good	0.42 \| good
2025-06-05T19:00:00.000Z	80 \| moderate	19.266 \| fine	43.914 \| good	64.129 \| fine	0.887 \| good	9.985 \| good	0.46 \| good
2025-06-05T20:00:00.000Z	119 \| sensitive	21.557 \| fine	86.89 \| fine	76.154 \| moderate	0.869 \| good	11.222 \| good	0.522 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	21.164 \| fine	61.964 \| fine	79.598 \| moderate	0.76 \| good	13.759 \| good	0.475 \| good
2025-06-05T22:00:00.000Z	136 \| sensitive	22.2 \| fine	93.748 \| fine	80.905 \| moderate	0.728 \| good	7.735 \| good	0.427 \| good
2025-06-05T23:00:00.000Z	119 \| sensitive	19.022 \| fine	77.417 \| fine	75.942 \| moderate	0.643 \| good	18.184 \| good	0.402 \| good
2025-06-06T00:00:00.000Z	93 \| moderate	20.427 \| fine	76.811 \| fine	68.016 \| fine	0.548 \| good	12.939 \| good	0.48 \| good
2025-06-06T01:00:00.000Z	74 \| moderate	19.238 \| fine	85.051 \| fine	62.12 \| fine	0.731 \| good	12.395 \| good	0.402 \| good
2025-06-06T02:00:00.000Z	71 \| moderate	19.959 \| fine	80.928 \| fine	52.708 \| good	1.334 \| good	14.406 \| good	0.395 \| good
2025-06-06T03:00:00.000Z	71 \| moderate	20.441 \| fine	85.202 \| fine	36.863 \| good	1.394 \| good	10.373 \| good	0.378 \| good
2025-06-06T04:00:00.000Z	67 \| moderate	17.579 \| fine	58.987 \| fine	36.863 \| good	0.697 \| good	9.868 \| good	0.34 \| good
2025-06-06T05:00:00.000Z	66 \| moderate	17.367 \| fine	54.417 \| good	27.349 \| good	0.567 \| good	11.494 \| good	0.339 \| good
2025-06-06T06:00:00.000Z	64 \| moderate	16.499 \| fine	77.411 \| fine	22.672 \| good	0.56 \| good	19.744 \| good	0.326 \| good
2025-06-06T07:00:00.000Z	64 \| moderate	16.246 \| fine	73.998 \| fine	22.672 \| good	0.595 \| good	21.582 \| good	0.294 \| good
2025-06-06T08:00:00.000Z	62 \| moderate	15.151 \| fine	68.696 \| fine	21.439 \| good	0.477 \| good	13.064 \| good	0.294 \| good
2025-06-06T09:00:00.000Z	66 \| moderate	17.083 \| fine	58.537 \| fine	22.698 \| good	0.581 \| good	15.786 \| good	0.294 \| good
2025-06-06T10:00:00.000Z	66 \| moderate	16.684 \| fine	46.855 \| good	25.947 \| good	0.622 \| good	19.905 \| good	0.294 \| good
2025-06-06T11:00:00.000Z	64 \| moderate	15.935 \| fine	67.698 \| fine	19.167 \| good	0.453 \| good	22.842 \| good	0.388 \| good
2025-06-06T12:00:00.000Z	66 \| moderate	16.987 \| fine	70.963 \| fine	21.372 \| good	0.478 \| good	24.204 \| good	0.435 \| good
2025-06-06T13:00:00.000Z	64 \| moderate	16.289 \| fine	62.597 \| fine	20.942 \| good	0.698 \| good	19.843 \| good	0.444 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	17.56 \| fine	73.622 \| fine	22.092 \| good	0.539 \| good	19.552 \| good	0.43 \| good
2025-06-06T15:00:00.000Z	69 \| moderate	18.509 \| fine	75.998 \| fine	30.92 \| good	0.569 \| good	25.526 \| good	0.46 \| good
2025-06-06T16:00:00.000Z	71 \| moderate	19.705 \| fine	70.301 \| fine	38.36 \| good	0.602 \| good	14.003 \| good	0.468 \| good
2025-06-06T17:00:00.000Z	75 \| moderate	22.032 \| fine	90.951 \| fine	43.929 \| good	0.615 \| good	12.86 \| good	0.468 \| good
2025-06-06T18:00:00.000Z	73 \| moderate	21.257 \| fine	88.559 \| fine	52.877 \| good	0.521 \| good	14.026 \| good	0.468 \| good
2025-06-06T19:00:00.000Z	87 \| moderate	20.151 \| fine	70.313 \| fine	66.142 \| fine	0.639 \| good	7.691 \| good	0.414 \| good
2025-06-06T20:00:00.000Z	100 \| moderate	16.96 \| fine	71.78 \| fine	69.945 \| fine	0.624 \| good	9.067 \| good	0.413 \| good
2025-06-06T21:00:00.000Z	101 \| sensitive	16.721 \| fine	72.275 \| fine	70.852 \| fine	0.63 \| good	15.515 \| good	0.437 \| good
2025-06-06T22:00:00.000Z	84 \| moderate	14.895 \| fine	72.806 \| fine	64.549 \| fine	0.506 \| good	13.629 \| good	0.411 \| good
2025-06-06T23:00:00.000Z	60 \| moderate	13.951 \| fine	63.223 \| fine	57.445 \| fine	0.492 \| good	18.504 \| good	0.428 \| good
2025-06-07T00:00:00.000Z	62 \| moderate	15.278 \| fine	64.182 \| fine	53.909 \| good	0.41 \| good	15.926 \| good	0.396 \| good
2025-06-07T01:00:00.000Z	62 \| moderate	15.04 \| fine	55.996 \| fine	53.675 \| good	0.389 \| good	15.081 \| good	0.421 \| good
2025-06-07T02:00:00.000Z	60 \| moderate	13.948 \| fine	47.072 \| good	44.261 \| good	0.583 \| good	17.176 \| good	0.398 \| good
2025-06-07T03:00:00.000Z	62 \| moderate	14.64 \| fine	47.495 \| good	30.042 \| good	0.638 \| good	13.135 \| good	0.351 \| good
2025-06-07T04:00:00.000Z	62 \| moderate	15.276 \| fine	61.051 \| fine	30.042 \| good	0.646 \| good	16.023 \| good	0.343 \| good
2025-06-07T05:00:00.000Z	58 \| moderate	13.13 \| fine	33.347 \| good	33.675 \| good	0.862 \| good	18.736 \| good	0.426 \| good
2025-06-07T06:00:00.000Z	62 \| moderate	15.492 \| fine	58.308 \| fine	30.181 \| good	0.828 \| good	18.824 \| good	0.401 \| good
2025-06-07T07:00:00.000Z	54 \| moderate	11.387 \| good	41.319 \| good	28.586 \| good	0.654 \| good	25.689 \| good	0.383 \| good
2025-06-07T08:00:00.000Z	52 \| moderate	10.017 \| good	38.234 \| good	18.953 \| good	0.622 \| good	15.573 \| good	0.393 \| good
2025-06-07T09:00:00.000Z	56 \| moderate	12.078 \| good	29.804 \| good	23.448 \| good	0.542 \| good	13.117 \| good	0.373 \| good
2025-06-07T10:00:00.000Z	54 \| moderate	10.539 \| good	29.798 \| good	21.194 \| good	0.649 \| good	25.15 \| good	0.334 \| good
2025-06-07T11:00:00.000Z	56 \| moderate	11.859 \| good	43.299 \| good	18.682 \| good	0.579 \| good	17.859 \| good	0.358 \| good
2025-06-07T12:00:00.000Z	56 \| moderate	11.859 \| good	43.299 \| good	18.682 \| good	0.579 \| good	17.859 \| good	0.358 \| good
2025-06-07T13:00:00.000Z	44 \| good	7.802 \| good	34.557 \| good	29.024 \| good	2.042 \| good	9.059 \| good	0.182 \| good
2025-06-07T14:00:00.000Z	52 \| moderate	9.606 \| good	42.694 \| good	30.546 \| good	1.909 \| good	9.194 \| good	0.178 \| good
2025-06-07T15:00:00.000Z	54 \| moderate	11.421 \| good	51.008 \| good	34.178 \| good	1.776 \| good	9.33 \| good	0.174 \| good
2025-06-07T16:00:00.000Z	54 \| moderate	11.196 \| good	49.86 \| good	39.28 \| good	1.665 \| good	5.875 \| good	0.203 \| good
2025-06-07T17:00:00.000Z	56 \| moderate	12.31 \| fine	54.618 \| good	43.522 \| good	1.661 \| good	6.216 \| good	0.199 \| good
2025-06-07T18:00:00.000Z	58 \| moderate	12.771 \| fine	57.086 \| fine	49.604 \| good	1.658 \| good	6.556 \| good	0.194 \| good
2025-06-07T19:00:00.000Z	54 \| moderate	11.203 \| good	49.879 \| good	56.374 \| fine	1.188 \| good	5.639 \| good	0.217 \| good
2025-06-07T20:00:00.000Z	48 \| good	8.455 \| good	37.249 \| good	52.464 \| good	1.19 \| good	5.918 \| good	0.214 \| good
2025-06-07T21:00:00.000Z	62 \| moderate	15.402 \| fine	68.565 \| fine	51.061 \| good	1.192 \| good	6.196 \| good	0.21 \| good
2025-06-07T22:00:00.000Z	69 \| moderate	18.687 \| fine	82.382 \| fine	46.666 \| good	0.866 \| good	9.515 \| good	0.255 \| good
2025-06-07T23:00:00.000Z	67 \| moderate	18.22 \| fine	80.981 \| fine	43.985 \| good	0.867 \| good	9.578 \| good	0.25 \| good
2025-06-08T00:00:00.000Z	62 \| moderate	15.052 \| fine	67.164 \| fine	44.006 \| good	0.868 \| good	9.642 \| good	0.244 \| good
2025-06-08T01:00:00.000Z	62 \| moderate	14.585 \| fine	65.46 \| fine	38.424 \| good	1.014 \| good	13.302 \| good	0.29 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	15.627 \| fine	69.793 \| fine	37.507 \| good	0.977 \| good	13.167 \| good	0.283 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	15.15 \| fine	67.66 \| fine	34.999 \| good	0.94 \| good	13.033 \| good	0.275 \| good
2025-06-08T04:00:00.000Z	56 \| moderate	12.16 \| fine	54.148 \| good	30.961 \| good	0.909 \| good	8.545 \| good	0.282 \| good
2025-06-08T05:00:00.000Z	54 \| moderate	11.391 \| good	50.576 \| good	27.64 \| good	0.854 \| good	8.122 \| good	0.276 \| good
2025-06-08T06:00:00.000Z	58 \| moderate	13.158 \| fine	59.398 \| fine	24.613 \| good	0.8 \| good	7.698 \| good	0.27 \| good
2025-06-08T07:00:00.000Z	54 \| moderate	11.107 \| good	49.059 \| good	16.699 \| good	0.964 \| good	4.672 \| good	0.294 \| good
2025-06-08T08:00:00.000Z	52 \| moderate	9.846 \| good	43.854 \| good	13.782 \| good	0.909 \| good	4.442 \| good	0.292 \| good
2025-06-08T09:00:00.000Z	54 \| moderate	10.755 \| good	47.328 \| good	13.387 \| good	0.855 \| good	4.212 \| good	0.291 \| good
2025-06-08T10:00:00.000Z	56 \| moderate	11.695 \| good	51.979 \| good	13.754 \| good	1.022 \| good	3.972 \| good	0.314 \| good
2025-06-08T11:00:00.000Z	58 \| moderate	13.208 \| fine	59.602 \| fine	16.949 \| good	0.909 \| good	3.871 \| good	0.305 \| good
2025-06-08T12:00:00.000Z	56 \| moderate	11.613 \| good	51.659 \| good	21.902 \| good	0.795 \| good	3.769 \| good	0.296 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.449 \| fine	68.903 \| fine	23.168 \| good	0.586 \| good	3.639 \| good	0.264 \| good
2025-06-08T14:00:00.000Z	67 \| moderate	17.816 \| fine	79.317 \| fine	28.732 \| good	0.533 \| good	3.641 \| good	0.253 \| good
2025-06-08T15:00:00.000Z	71 \| moderate	20.426 \| fine	89.764 \| fine	32.712 \| good	0.48 \| good	3.642 \| good	0.242 \| good
2025-06-08T16:00:00.000Z	67 \| moderate	18.292 \| fine	80.754 \| fine	39.475 \| good	0.566 \| good	3.287 \| good	0.239 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	12.555 \| fine	55.804 \| fine	43.654 \| good	0.517 \| good	3.166 \| good	0.23 \| good
2025-06-08T18:00:00.000Z	58 \| moderate	12.886 \| fine	57.202 \| fine	46.511 \| good	0.468 \| good	3.045 \| good	0.222 \| good
2025-06-08T19:00:00.000Z	62 \| moderate	15.466 \| fine	69.011 \| fine	55.466 \| fine	0.689 \| good	3.863 \| good	0.23 \| good
2025-06-08T20:00:00.000Z	60 \| moderate	14.344 \| fine	64.699 \| fine	53.074 \| good	0.635 \| good	3.709 \| good	0.222 \| good
2025-06-08T21:00:00.000Z	56 \| moderate	12.075 \| good	54.011 \| good	52.189 \| good	0.582 \| good	3.556 \| good	0.214 \| good
2025-06-08T22:00:00.000Z	54 \| moderate	11.112 \| good	49.064 \| good	48.257 \| good	0.811 \| good	8.295 \| good	0.251 \| good
2025-06-08T23:00:00.000Z	52 \| moderate	10.369 \| good	45.924 \| good	43.921 \| good	0.757 \| good	8.018 \| good	0.242 \| good
2025-06-09T00:00:00.000Z	49 \| good	8.6 \| good	37.597 \| good	43.132 \| good	0.704 \| good	7.74 \| good	0.234 \| good
2025-06-09T01:00:00.000Z	44 \| good	8.114 \| good	35.739 \| good	41.238 \| good	1.145 \| good	10.039 \| good	0.228 \| good
2025-06-09T02:00:00.000Z	44 \| good	7.614 \| good	33.394 \| good	44.122 \| good	1.046 \| good	9.482 \| good	0.224 \| good
2025-06-09T03:00:00.000Z	41 \| good	6.43 \| good	28.311 \| good	44.006 \| good	0.946 \| good	8.926 \| good	0.22 \| good
2025-06-09T04:00:00.000Z	38 \| good	7.271 \| good	32.379 \| good	38.095 \| good	1.553 \| good	11.468 \| good	0.216 \| good
2025-06-09T05:00:00.000Z	44 \| good	8.16 \| good	35.688 \| good	35.415 \| good	1.382 \| good	10.942 \| good	0.22 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	9.878 \| good	11.016 \| good	29.505 \| good	1.218 \| good	10.53 \| good	0.227 \| good
2025-06-09T07:00:00.000Z	44 \| good	7.941 \| good	34.783 \| good	30.372 \| good	1.785 \| good	12.031 \| good	0.224 \| good
2025-06-09T08:00:00.000Z	38 \| good	6.749 \| good	29.798 \| good	29.861 \| good	1.574 \| good	11.395 \| good	0.229 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.596 \| good	33.39 \| good	29.074 \| good	1.364 \| good	10.76 \| good	0.235 \| good
2025-06-09T10:00:00.000Z	49 \| good	8.593 \| good	37.575 \| good	26.632 \| good	1.413 \| good	6.797 \| good	0.239 \| good
2025-06-09T11:00:00.000Z	44 \| good	8.274 \| good	36.406 \| good	26.063 \| good	1.259 \| good	6.278 \| good	0.243 \| good
2025-06-09T12:00:00.000Z	49 \| good	8.935 \| good	9.433 \| good	36.545 \| good	1.117 \| good	5.769 \| good	0.248 \| good

Live air quality index in Greenwich, Connecticut today

Major air pollutants in Greenwich, Connecticut

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Port Chester, New York

Rye, New York

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White Plains, New York

Mamaroneck, New York

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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