Skip to weather
weather.ws

Perak, Malaysia

Simpang · Air quality

Sunday, Nov 1 · Asia/Kuala Lumpur

Simpang air quality

US air quality index

53

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200
  5. Very unhealthy201–300
  6. Hazardous301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

All pollutants

PM1
9 µg/m³
PM2.5
10 µg/m³
PM10
10 µg/m³
Ozone
53.3 µg/m³
Nitrogen dioxide
4.7 µg/m³
Sulfur dioxide
4.7 µg/m³
Carbon monoxide
366.3 µg/m³
European AQI (separate scale)
2