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Central Luzon, Philippines

San Francisco · Ingancin iska

Friday, Nov 13 · Asia/Manila

San Francisco air quality

US air quality index

50

Mai kyau

US EPA scale

  1. Mai kyau0–50Current category
  2. Matsakaici51–100
  3. Mai cutarwa ga masu saurin kamuwa101–150
  4. Mai cutarwa ga lafiya151–200
  5. Mai matuƙar cutarwa ga lafiya201–300
  6. Mai haɗari301–500+

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

Understand the EPA scale

Duk abubuwan gurɓata iska

PM1
4 µg/m³
PM2.5
8 µg/m³
PM10
11 µg/m³
Ozon
65.3 µg/m³
Diyoksayidin naytrojin
3 µg/m³
Diyoksayidin sulfur
1.7 µg/m³
Monoksayidin karbon
177.3 µg/m³
European AQI (separate scale)
2