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Air quality · New York, United States

New York City Air Quality Index (AQI) today

Modelled estimate for 06:00 local time (UTC-5), refreshed 3 Nov, 07:52 UTC+0.

70 Moderate

Live estimate · modelled

US EPA AQI06:00 UTC-5, 3 Nov Main pollutant: PM2.5

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 68.

Over the next 24 hours the model expects the AQI to range from 62 around 04:00 to 80 around 08:00 (3 Nov).

382nd most polluted of 849 cities worldwide right now, 5th of 25 in United States.

What to do today

  • Long walk or run outside OK, lighter if very sensitive
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

07:00 · 68 08:00 · 74 09:00 · 76 10:00 · 74 11:00 · 71 12:00 · 66 13:00 · 62 14:00 · 59 15:00 · 58 16:00 · 58 17:00 · 61 18:00 · 65 19:00 · 68 20:00 · 69 21:00 · 70 22:00 · 70 23:00 · 70 00:00 · 69 01:00 · 69 02:00 · 69 03:00 · 69 04:00 · 69 05:00 · 69 06:00 · 70 07:00 · 74 08:00 · 80 09:00 · 80 10:00 · 79 11:00 · 76 12:00 · 74 13:00 · 71 14:00 · 69 15:00 · 68 16:00 · 69 17:00 · 73 18:00 · 78 19:00 · 80 20:00 · 79 21:00 · 79 22:00 · 77 23:00 · 75 00:00 · 72 01:00 · 68 02:00 · 65 03:00 · 63 04:00 · 62 05:00 · 62 06:00 · 65 07:00 · 72 08:00 · 80 09:00 · 80 10:00 · 77 11:00 · 75 12:00 · 72 13:00 · 69 14:00 · 67 15:00 · 66 16:00 · 66 17:00 · 68 18:00 · 70 19:00 · 71 20:00 · 70 21:00 · 69 22:00 · 67 23:00 · 65 00:00 · 62 01:00 · 60 02:00 · 58 Now

US EPA AQI per hour, UTC-5. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Mon 07:0068
Mon 08:0074
Mon 09:0076
Mon 10:0074
Mon 11:0071
Mon 12:0066
Mon 13:0062
Mon 14:0059
Mon 15:0058
Mon 16:0058
Mon 17:0061
Mon 18:0065
Mon 19:0068
Mon 20:0069
Mon 21:0070
Mon 22:0070
Mon 23:0070
Tue 00:0069
Tue 01:0069
Tue 02:0069
Tue 03:0069
Tue 04:0069
Tue 05:0069
Tue 06:00 · Now70
Tue 07:00 · Forecast74
Tue 08:00 · Forecast80
Tue 09:00 · Forecast80
Tue 10:00 · Forecast79
Tue 11:00 · Forecast76
Tue 12:00 · Forecast74
Tue 13:00 · Forecast71
Tue 14:00 · Forecast69
Tue 15:00 · Forecast68
Tue 16:00 · Forecast69
Tue 17:00 · Forecast73
Tue 18:00 · Forecast78
Tue 19:00 · Forecast80
Tue 20:00 · Forecast79
Tue 21:00 · Forecast79
Tue 22:00 · Forecast77
Tue 23:00 · Forecast75
Wed 00:00 · Forecast72
Wed 01:00 · Forecast68
Wed 02:00 · Forecast65
Wed 03:00 · Forecast63
Wed 04:00 · Forecast62
Wed 05:00 · Forecast62
Wed 06:00 · Forecast65
Wed 07:00 · Forecast72
Wed 08:00 · Forecast80
Wed 09:00 · Forecast80
Wed 10:00 · Forecast77
Wed 11:00 · Forecast75
Wed 12:00 · Forecast72
Wed 13:00 · Forecast69
Wed 14:00 · Forecast67
Wed 15:00 · Forecast66
Wed 16:00 · Forecast66
Wed 17:00 · Forecast68
Wed 18:00 · Forecast70
Wed 19:00 · Forecast71
Wed 20:00 · Forecast70
Wed 21:00 · Forecast69
Wed 22:00 · Forecast67
Wed 23:00 · Forecast65
Thu 00:00 · Forecast62
Thu 01:00 · Forecast60
Thu 02:00 · Forecast58

Pollutants this hour

  • PM2.5 21.6 µg/m³ 24-hour mean 18.5 µg/m³ · 1.2× WHO’s 24-hour guideline (15) 70
  • PM10 23 µg/m³ 19
  • O₃ 3 µg/m³ 4
  • NO₂ 59 µg/m³ 29
  • SO₂ 3 µg/m³ 1
  • CO 0.36 mg/m³ 2

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Philadelphia Pennsylvania 64
Boston Massachusetts 63
Washington District of Columbia 56
Montreal Canada 53
Ottawa Canada 53
Toronto Canada 33
Mississauga Canada 31

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at New York City’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in New York City right now?
70 on the US EPA scale (Moderate) at 06:00 UTC-5, 3 Nov. PM2.5 is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in New York City today?
For most people, yes. The EPA’s statement for “Moderate”: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. General guidance, not medical advice.

Will the air in New York City get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 62 around 04:00 to 80 around 08:00 (3 Nov). Forecasts beyond a day are less certain.

How does New York City compare with other cities?
Right now it is the 382nd most polluted of 849 cities we track worldwide, and 5th of 25 in United States, all on the same US EPA scale.

Why does another app show a different AQI for New York City?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.