Valle d'Aosta/Vallée d'Aoste · Valle d'Aosta/Vallée d'Aoste

Environment of Roisan

Air quality: 2022 · Land consumption: 2024

PM2.5

12,9

μg/m³ (WHO: 5)

PM10

22,1

μg/m³ (WHO: 15)

NO₂

16,4

μg/m³ (WHO: 10)

Land consumption

3,7%

of territory

Air quality (2022)

The bar shows the measured value relative to twice the WHO limit (vertical line). Red = exceeds limit.

PM2.5 — Fine particulate12,9 μg/m³

0WHO Limit: 5 μg/m³10 μg/m³

PM10 — Coarse particulate22,1 μg/m³

0WHO Limit: 15 μg/m³30 μg/m³

NO₂ — Nitrogen dioxide16,4 μg/m³

0WHO Limit: 10 μg/m³20 μg/m³

Ozone (O₃) — annual average61 μg/m³

Consumed percentage

3,7%

out of 14,6 km² total

Consumed area

54 ha

sealed hectares

Source: ISPRA — Land Consumption Report in Italy.