Toggle navigation
Places
AQI (UK)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Europe
Netherlands
South Holland
Leiden
Site 88050
AQI (UK)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Site 88050
Leiden, South Holland
2025-03-28 03:23
AQI (UK)
Low
3
Pollutants
|
Pollens
PM10
μg/m³
48.1
PM2.5
μg/m³
25.5
Alder
6.6
Birch
3.5
Ragweed
0
Mugwort
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
4℃
89%
3 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (UK)
AQI (UK)
Allergy Risk
PM10
PM2.5
Alder
Birch
Ragweed
Mugwort
Olive Tree
Grasses
Data Sources
http://luftdaten.info
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
AQI
AQI
PM10
PM2.5
Rischio allergia
CO
NO2
SO2
Ontano
Ambrosia
Artemisia
Betulla
Olive Tree
Graminacee
O3
24
291
113
24
20
20
242
113
55
17
26
291
34
22
14
250
134
141
44
124
93
24
119
28
291
27
4
250
134
93
134
15
12
250
34
119
24
9
34
26
9
15
24
29
250
23
134
9
26
14
18
29
93
26
14
29
17
9
13
19
12
11
+
−
Leaflet
| ©
OpenStreetMap
contributors
Cities Nearby
Leiden
AQI 2
Oegstgeest
AQI 2
Leiderdorp
AQI 2
Rijnsburg
AQI 2
Zoeterwoude-Rijndijk
AQI 2
Voorschoten
AQI 4
Wassenaar
AQI 4
Katwijk aan Zee
AQI 2
Sassenheim
AQI 2
Rijpwetering
AQI 2
Koudekerk aan den Rijn
AQI 2
Air Matters © 2025