Olivais monitoring station

Background · Lisbon · eea

Latest station observation

Station observation

Moderate

European Air Quality Index

NO₂ set this category.

GoodExtremely poor

Measured 14 Nov 2026, 08:00 WET
5 of 5 index pollutants · Delayed · provisional E2a
Olivais · Background
Method eea-hourly-2025-07
European Environment Agency

How to read the index

What’s in the air?

Concentrations for the time and source shown above.

Pollutant guides

PM2.5 Fine particles 4.5 µg/m³ Good Hourly average PM10 Inhalable particles 14.3 µg/m³ Good Hourly average NO₂ Nitrogen dioxide 28 µg/m³ Moderate Hourly average O₃ Ground-level ozone 34 µg/m³ Good Hourly average SO₂ Sulphur dioxide 1.7 µg/m³ Good Hourly average CO Carbon monoxide Unavailable

Air quality history

24 hours

Station observations · Provisional E2a · Hourly average

Olivais

PM2.5 · µg/m³ 3.8–7.8 µg/m³

Europe/Lisbon 19 of 24 hourly values European Environment Agency

View values as a table

PM2.5 concentrations (µg/m³)
Time (Europe/Lisbon)	PM2.5
13 Nov 2026, 14:00 WET	7.3 · provisional
13 Nov 2026, 15:00 WET	7.8 · provisional
13 Nov 2026, 16:00 WET	6.6 · provisional
13 Nov 2026, 17:00 WET	6.2 · provisional
13 Nov 2026, 18:00 WET	5.3 · provisional
13 Nov 2026, 19:00 WET	5 · provisional
13 Nov 2026, 20:00 WET	4.2 · provisional
13 Nov 2026, 21:00 WET	4 · provisional
13 Nov 2026, 22:00 WET	5.6 · provisional
13 Nov 2026, 23:00 WET	6.1 · provisional
14 Nov 2026, 00:00 WET	5.9 · provisional
14 Nov 2026, 01:00 WET	5.8 · provisional
14 Nov 2026, 02:00 WET	4.9 · provisional
14 Nov 2026, 03:00 WET	4.6 · provisional
14 Nov 2026, 04:00 WET	4.4 · provisional
14 Nov 2026, 05:00 WET	4.4 · provisional
14 Nov 2026, 06:00 WET	4 · provisional
14 Nov 2026, 07:00 WET	3.8 · provisional
14 Nov 2026, 08:00 WET	4.5 · provisional
14 Nov 2026, 09:00 WET	Missing · excluded
14 Nov 2026, 10:00 WET	Missing · excluded
14 Nov 2026, 11:00 WET	Missing
14 Nov 2026, 12:00 WET	Missing
14 Nov 2026, 13:00 WET	Missing

7 days

Station observations · Provisional E2a · Local daily mean of valid hourly measurements

PM2.5 · µg/m³ 4.583–5 µg/m³

Europe/Lisbon 3 of 7 days meet the 75% hourly requirement European Environment Agency

View values as a table

PM2.5 concentrations (µg/m³)
Date (Europe/Lisbon)	PM2.5
7 Nov 2026	Missing · 0/24 hours
8 Nov 2026	Missing · 0/24 hours
9 Nov 2026	Missing · 0/24 hours
10 Nov 2026	Missing · 2/24 hours
11 Nov 2026	5 · 24/24 hours
12 Nov 2026	4.583 · 24/24 hours
13 Nov 2026	4.775 · 24/24 hours

30 days

Station observations · Provisional E2a · Local daily mean of valid hourly measurements

PM2.5 · µg/m³ 4.583–5 µg/m³

Europe/Lisbon 3 of 30 days meet the 75% hourly requirement European Environment Agency

View values as a table

PM2.5 concentrations (µg/m³)
Date (Europe/Lisbon)	PM2.5
15 Oct 2026	Missing · 0/24 hours
16 Oct 2026	Missing · 0/24 hours
17 Oct 2026	Missing · 0/24 hours
18 Oct 2026	Missing · 0/24 hours
19 Oct 2026	Missing · 0/24 hours
20 Oct 2026	Missing · 0/24 hours
21 Oct 2026	Missing · 0/24 hours
22 Oct 2026	Missing · 0/24 hours
23 Oct 2026	Missing · 0/24 hours
24 Oct 2026	Missing · 0/24 hours
25 Oct 2026	Missing · 0/25 hours
26 Oct 2026	Missing · 0/24 hours
27 Oct 2026	Missing · 0/24 hours
28 Oct 2026	Missing · 0/24 hours
29 Oct 2026	Missing · 0/24 hours
30 Oct 2026	Missing · 0/24 hours
31 Oct 2026	Missing · 0/24 hours
1 Nov 2026	Missing · 0/24 hours
2 Nov 2026	Missing · 0/24 hours
3 Nov 2026	Missing · 0/24 hours
4 Nov 2026	Missing · 0/24 hours
5 Nov 2026	Missing · 0/24 hours
6 Nov 2026	Missing · 0/24 hours
7 Nov 2026	Missing · 0/24 hours
8 Nov 2026	Missing · 0/24 hours
9 Nov 2026	Missing · 0/24 hours
10 Nov 2026	Missing · 2/24 hours
11 Nov 2026	5 · 24/24 hours
12 Nov 2026	4.583 · 24/24 hours
13 Nov 2026	4.775 · 24/24 hours

How to read observations

What this station measures

Outdoor monitoring stations describe the conditions around their instruments. Traffic, background and industrial sites represent different environments. Check the pollutant, observation period and data quality before comparing readings from different sites.