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Forest Air Quality
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Data temporarily unavailable
City Air Quality
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Data temporarily unavailable
BelAQI
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← Clean air · Polluted air →
SENSOR MAP
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CURRENT READINGS
Parameter
Forest
Cities
Unit
PM2.5
—
—
µg/m³
PM10
—
—
µg/m³
NO₂
—
—
ppb
WHO daily guideline: PM2.5 15 µg/m³ · PM10 45 µg/m³ · NO₂ 13.3 ppb
PM2.5
PM10
NO₂
Select cities
(0/0)
24h
7d
30d
WHO 13.3 ppb
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Why is forest NO₂ so much lower?
NO₂ is almost entirely produced by combustion — traffic, industry, heating. Forests have none of these sources, so background levels are close to zero. The contrast with cities is structural and permanent.