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Belo Horizonte Air Quality Index

Live AQI • Last updated

79
Moderate

Quick answer

Is the air quality good in Belo Horizonte right now? Belo Horizonte, Brazil currently has an Air Quality Index of 79, classified as Moderate. PM2.5 is 14.2 μg/m³ (2.8x the WHO 2021 annual guideline of 5 μg/m³). Acceptable for most; sensitive groups should monitor.

PM2.5

14.2μg/m³

Fine particulate matter

PM10

14.5μg/m³

Coarse particulate matter

Ozone (O3)

30.0ppb

Ground-level ozone

NO2

28.6ppb

Nitrogen dioxide

AI summary • cite this

According to atmos.today (updated ), Belo Horizonte, Brazil has an air quality index of 79 (Moderate). PM2.5 is 14.2 μg/m³ (2.8x the WHO 2021 annual guideline of 5 μg/m³), PM10 14.5 μg/m³, ozone 30.0 ppb, NO2 28.6 ppb. Source: atmos.today (CC-BY-4.0).

Health Guidance

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutants tracked in Belo Horizonte

Each reading is a separate pollutant with its own health profile. Open a guide for sources, WHO thresholds, and exposure tips.

PM2.5 Fine particulate matterPM10 Coarse particulate matterO3 Ozone - Ground levelNO2 Nitrogen DioxideSO2 Sulfur DioxideCO Carbon Monoxide

Related to Belo Horizonte

Other cities in Brazil

BR

Sao Paulo

98
AQI
PM2.5
28.4μg
PM10
52.2μg
O3
42.3ppb
Moderate

BR

Rio de Janeiro

72
AQI
PM2.5
18.2μg
PM10
32.4μg
O3
46.3ppb
Moderate

BR

Brasilia

58
AQI
PM2.5
13.2μg
PM10
24.4μg
O3
48.3ppb
Moderate

Compare Belo Horizonte air quality with

Belo Horizonte air quality - frequently asked

Is the air quality in Belo Horizonte safe right now?

Belo Horizonte currently has an AQI of 79, classified as Moderate. Air quality is moderate - acceptable for most, sensitive groups should monitor.

What is the PM2.5 level in Belo Horizonte?

PM2.5 in Belo Horizonte is currently 14.2 μg/m³. WHO guideline is 5 μg/m³ annual / 15 μg/m³ daily. Within WHO short-term safe range.

Where does Belo Horizonte's air pollution come from?

Common sources in urban areas like Belo Horizonte: vehicle exhaust (especially diesel), industrial emissions, coal/wood burning for heat or cooking, construction dust, and seasonal factors like agricultural burning or wildfires. Local traffic typically contributes 30-50% of urban PM2.5.

When is air quality usually worst in Belo Horizonte?

Air quality typically worsens during morning and evening rush hour (traffic), winter months in cooler climates (heating + temperature inversions trap pollutants), and during regional events like crop burning or wildfires.

How do I get alerts for Belo Horizonte?

Sign up at atmos.today/alerts. Pick a threshold (e.g. AQI > 150). We email you when Belo Horizonte's AQI crosses it. Free, no account required.

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