Ruka hadi hali ya hewa
weather.ws

Piedmont, Italia

Portula · Ubora wa hewa

Ijumaa, 6 Nov · Europe/Rome

Portula air quality

US air quality index

85

Wastani

US EPA scale

  1. Nzuri0–50
  2. Wastani51–100Current category
  3. Hewa yenye madhara kwa makundi nyeti101–150
  4. Hewa yenye madhara151–200
  5. Hewa yenye madhara makubwa201–300
  6. Hatari301–500+

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

Understand the EPA scale

Vichafuzi vyote

PM1
41 µg/m³
PM2.5
43 µg/m³
PM10
45 µg/m³
Ozoni
29.3 µg/m³
Dioksidi ya nitrojeni
20 µg/m³
Dioksidi ya salfa
1 µg/m³
Monoksidi ya kaboni
459.3 µg/m³
European AQI (separate scale)
4