⭐ Support Time.now: Join our Premium Plan for an ad-free experience! ⭐ Support Us: Go Premium Ad-Free!

Air Quality Index (AQI) in Slovenia 🇸🇮

Ljubljana Air Quality Index

AQI INDEX
91
US EPA Standard

PM 2.5 Level
31
µg/m³

US EPA Index
2
Moderate

Live Air Quality Index (AQI) and PM2.5 Levels in Slovenia

Currently, the Air Quality Index (AQI) in Ljubljana, the capital of Slovenia, is measured at a score of 91. According to the US EPA health standard, this air quality rating is categorized as Moderate. The current atmosphere in Ljubljana is influenced by a PM2.5 (fine particulate matter) concentration of 30.8 µg/m³ and PM10 levels recorded at 42.6 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 16.5 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Slovenia based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Maribor, Kranj, Celje, Koper and Velenje. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.

Slovenia Air Quality: Major Cities Index

* Air Quality Index (AQI) data for Slovenia is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.

Browse Air Quality in Slovenia by cities in alphabetical order:

C K L M N P T V

Frequently Asked Questions about Air Quality in Slovenia

What is the air quality in Slovenia right now?

The current AQI in Ljubljana (capital of Slovenia) is 91 — categorised as Moderate. Conditions vary across the country — see AQI for all cities for a complete picture.

Which city in Slovenia has the worst air quality right now?

Right now, Ljubljana has the highest AQI reading in Slovenia at 91 (Moderate).

Which city in Slovenia has the best air quality right now?

Koper currently has the lowest AQI in Slovenia at 62 (Moderate).

What is the PM2.5 level in Ljubljana today?

The PM2.5 (fine particulate) concentration in Ljubljana, the capital of Slovenia, is currently 30.8 µg/m³. The WHO 24-hour guideline is 15 µg/m³.

Is the air in Slovenia safe to breathe today?

Most cities in Slovenia currently report acceptable air-quality levels, though local conditions vary.

What are the cleanest cities in Slovenia right now?

Top 5 cities in Slovenia with the best (lowest) AQI right now:

  • Koper: AQI 62 — Moderate
  • Velenje: AQI 62 — Moderate
  • Kranj: AQI 74 — Moderate
  • Maribor: AQI 76 — Moderate
  • Novo Mesto: AQI 76 — Moderate
What are the most polluted cities in Slovenia right now?

Top 5 cities in Slovenia with the worst (highest) AQI right now:

  • Ljubljana: AQI 91 — Moderate
  • Celje: AQI 87 — Moderate
  • Trbovlje: AQI 87 — Moderate
  • Maribor: AQI 76 — Moderate
  • Novo Mesto: AQI 76 — Moderate

Air Quality Scales & Resources

Wondering what these AQI numbers mean for your health? Our worldwide air quality guide explains every level of the AQI, PM2.5, PM10, ozone, NO2, CO and SO2 scales, with practical health advice for each range.

→ Understanding Air Quality Levels: read the full guide