Deep-dive

Climate and hazards: regional anti-smog restrictions, seismic zone 4, residents in flood-prone areas

Asti applies the regional traffic restrictions ("Plain" zone), with the anti-smog traffic light active from 15 September to 15 April. It is in seismic zone 4, the least hazardous. According to ISPRA, 1,109 residents (1.5%) live in areas of medium flood hazard and 89 in areas of high or very high landslide hazard.

Sections: Seasons · Rainfall · Temperatures · Air quality · Environmental hazards

Anti-smog restrictions

Asti is one of the Piedmont municipalities subject to the traffic restrictions of regional resolution DGR 26-3694 of 6 August 2021, in the "Plain" zone. Each municipality concerned applies them through a mayoral ordinance drafted on the regional template, which may also make the rules stricter. From 15 September to 15 April ARPA Piemonte monitors the conditions in which pollutants build up and triggers the orange and red levels of the anti-smog traffic light, which add temporary measures to the structural restrictions; the level in force is shown on the Aria+ Piemonte portal, the local rules in the municipal ordinance.

Seismic and hydrogeological risk

In the seismic classification list updated in May 2025 by the Civil Protection Department, Asti is in zone 4, the least hazardous of the four. According to the indicators of ISPRA's IdroGEO platform (2024 report on hydrogeological instability), 1,109 residents, 1.5% of the population, live in areas of medium flood hazard and 89 in areas of high or very high landslide hazard. House hunters can check the municipality's map on the same platform.

Days per year above the PM10 limit (50 µg/m³)

City figurePeriod: 2024Validsample unknown

Source: SNPA – La qualità dell'aria in Italia nel 2024: PM10, tabella ISQA per stazione (dati ARPA/APPA, provvisori) · Dati 2024 elaborati dalle ARPA/APPA a fine anno, provvisori: le relazioni regionali definitive possono dedurre i superamenti attribuibili a polveri desertiche. Valore limite: max 35 giorni/anno. Altra stazione: Asti - Baussano (urbana traffico) 35 giorni.

38days

Missing: temp_jan_avg, temp_jul_avg, rain_days_year