Atmospheric Physics & Factor Attribution

What Drives Malaysia's Haze?

Air pollution changes continuously throughout the day. Tropical downpours, coastal breezes, and morning humidity alter fine particulate concentration (PM2.5). Adjust the meteorological variables below or select a reference scenario to examine how each factor contributes to particulate accumulation.

Reference Meteorological ScenariosSelect a scenario to inspect its atmospheric behavior

Atmospheric Variables

Current PM2.5 (Fine Smoke)18 µg/m³

Normal clean air is 5–15 µg/m³; hazy episodes exceed 55 µg/m³.

Current PM10 (Coarse Dust)28 µg/m³

Rainfall (Precipitation)0 mm

Rain acts as a natural air filter, washing smoke particles out of the sky.

Wind Speed22 km/h

Light winds (< 8 km/h) allow smoke to accumulate; strong winds disperse it.

Relative Humidity58%

High humidity causes moisture to bind to smoke particles, worsening haze visibility.

Surface Temperature32 °C