1. Levels of PM10 in The Netherlands
Ronald Hoogerbrugge

2. }10 µg/m3

4. 1 µg/m3 ~5 days
31 µg/m3

5. Regional stations
Decreasement 1 µg/m3 /year
Yearly variations up to 5 µg/m3 (~ 25 exceeding days)

6. Average annual contribution sea salt
Interpolation measurements
Assumption on distance to
coast dependence
Variation model
and measurement 1 g/m3

7. PM2.5 and PM10 measurements 2004, The Netherlands RIVM (DRAFT No correction factor)
Site Name
Period
Site Classification
Location
Mean Value
TEOM
Β-ray attenuation
concentration PM2.5 (µg/m3)*
concentration PM10 (µg/m3)*
Vredepeel
May-Dec 2004
rural
South
13.5
22.0
Vlaardingen
April-Dec 2004
road side
West
16.4
28.8
De Zilk
June-Dec 2004
13.2
25.2
Kollumerwaard
North
11.3
19.9
*Measuring method. PM2.5 = Tapered Element Oscillating Microbalance and PM­10 = ß-ray attenuation

8. PM2.5 and PM10 Measurements 2002 – 2004 IRAS (DRAFT Harvard Impactor )
Period
Site Name
Number 24hr mean values
Site classification
Mean value (µg/m3)
Ratio
PM2.5
PM10
PM2,5/PM10
nov 2002 – march 2004
Amsterdam
491
Urban background 22 31
0.65
*Measuring method: Harvard Impactor

9. PM2.5 and PM10 Measurements 1999 – 2006, Municipal Health centre Amsterdam TEOM DRAFT No correction factor
Period
Site Name
Site classification
Annual mean (µg/m3)
Ratio
PM2.5
PM10
PM2,5/PM10
1999
Overtoom
Klinkerweg
Westerpark
Urban Background
13.1
13.4
14.0
21.0
21.7
0.62
0.67
2000
13.6
13.9
20.3
21.1
21.3
0.65
2001
12.8
12.6
13.0
20.1
20.2
0.64
0.63
2002
14.3
13.5
13.7
21.5
0.68
2003
14.1
13.8
22.0
21.8
2004
A10-Zuid
Street side (highway)
15.4
2005
Overtoom (TEOM/KFG)
A10-zuid (TEOM/KFG)
13.6/16.3
15.9/20.6

10. concentration PM2.5 (µg/m3)*
PM2.5 Measurements Environmental protection Agency Rotterdam region (DCMR) TEOM 30°C
Site Name
Period
Site Classification
concentration PM2.5 (µg/m3)*
Annual mean (µg/m3)
2004
2005
Schiedam
Feb 2004 / Dec 2005
Urban background
16.6
15.5
Maassluis
March 2004/
Dec 2005
Suburban
15.1
15.0

11. Conclusions PM10 Decrease rural 1 µg/m3/year Annual variation 5 µg/m3
Urban 8-10 µg/m3 > rural
PM2.5
Most data without correction factor
Most data consistent with PM10/PM2.5 =