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Weather in Portland, Maine

01:56 PM
Now
Cloudy Weather
43° F
Feels Like 39°
Precipitation 0 %
Wind 11 mph
UV Index (0 - 11+) 2
Humidity 48 %
Today
Cloudy Weather
Day 43°
Night 36°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2

Portland Weather Forecast Updated

Last updated on

Air Quality in Portland

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.6 µg/m³
PM10 2.63 µg/m³
O3 0.026 ppm
NO2 3.6 ppb
SO2 0.5 ppb
CO 0.14 ppm
NH3 0.55 µg/m³
NO 1.89 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.6 µg/m³
PM102.63 µg/m³
O351.81 µg/m³
NO26.81 µg/m³
SO21.36 µg/m³
CO164.88 µg/m³
NH30.55 µg/m³
NO1.89 µg/m³