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Leadpartner
Saxon State Agency for Environment and Geology
Section 22, Air Quality
Holger.Gerwig@smul.sachsen.de
With the contribution of the LIFE financial instrument of the
European Community: LIFE04 ENV/D/000054
Ultrafine Particles in Urban Air
Final Conference EU-Project UFIPOLNET
23. – 24. Oct 2007 Dresden
Registration: early 20-Jul-2007, late 22-Sep-2007
www.ufipolnet.eu
Ultrafine Particles at 4 Stations in Europe
EU-LIFE-Project-UFIPOLNET
H. Gerwig
a
, G. Löschau
a
, L. Hillemann
a
, A. Rudolph
b
, A. Zschoppe
b
, C. Peters
b
, J. Cyrys
c
,
R. Rückerl
c
, C. Johansson
d
, J. Novák
e
, H. Horn
f
, R. Caldow
f
, G. Sem
f
, B. Wehner
g
, A. Wiedensohler
g
Fine! Dust-free into the future; International Congress on the EU-LIFE-Environment Project KAPA GS, 29.-30.03.2007 Klagenfurt
WHY ULTRAFINE PARTICLES?
• High concentrations of ultrafine particles in ambient air cause heart attacks and premature
deaths.
• These ultrafine particles have a diameter of less than 100 nanometers.
• Being so small, they can be inhaled and travel via the blood stream to the inner organs.
Ultrafine particles are measured regularly in only a few measuring stations in Europe.
• The WHO and the EU Thematic Strategy on Air Pollution asks to evaluate more research
on ultrafine particles as indicator of traffic-related air pollution.
PARTNER
i
OBJECTIVES
• Measuring instrument for
ultrafine particle size distributions
(UFP 330 by TOPAS GmbH)
•Affordable and easy to use
under routine measuring
network conditions
•No butanol or radioactivity
•6 different size classes (K1 - K6)
>20 | >30 | >50 | >70 | >100 | >200nm
• Measuring activities over 5 years
• Contact with interested groups,
like CAFE-Working group and VDI
Fig. 4
Particle number concentrations UFP 330 compared to NOx,
half hour average, Dresden, one week: 29.01. – 4.2.2007
FIRST RESULTS
• Ongoing measurements since 12-2006 in Dresden, at the other 3 places since 02-2007.
• Same sampling and measuring system at all sites.
• Total Particle number concentration of UFP 330 to NOx in Dresden shows
good correlation (29.1.-4.2.07): R² = 0.83 (Fig. 4).
• Comparing UFP 330 and reference instrument in the 6 size classes:
In general, the correlation for the size classes K2 – K5 is higher than for the largest and
smallest one. The result is nearly independent on the concentration.
• Correlation between total number concentration UFP 330 (20 – 500 nm) and DMPS
(20 – 400 nm) (24.1.- 15.2.07) is good: R² = 0.85.
CONTACT
CONFERENCE
Fig. 1
A football relates to
a pinhead like
a 10 μm particle
to
an ultrafine particle
Fig. 2
Dresden: UFP 330, TOPAS (middle) and
reference instrument twin-DMPS, IFT (right)
Fig. 3
Measuring sites in
Sweden, Germany and Czech Republic
a
Saxon: LfUG, Dresden
UBG, Radebeul
B
TOPAS GmbH, Dresden
c
GSF, Neuherberg
d
ITM, Stockholm University
e
CHMU, Prague
f
TSI GmbH, Aachen
g
IfT, Leipzig
MEASURING SITES
• Stockholm: Hornsgatan
• Dresden: Schlesischer Platz
• Prague: Strahovský tunnel
• Augsburg: Friedberger Straße
Three places are near busy roads,
whereas the place in Augsburg is
an urban background site.
y = 87,43x
R
2
= 0,83
0
5.000
10.000
15.000
20.000
25.000
30.000
0
100
200
300
NOx in μg m
-3
Particle number in cm
-3
PM
10
(10 μm)
Ultrafine Particles (0.1 μm)
0
5.000
10.000
15.000
20.000
25.000
30.000
Mo.
29.01
Di.
30.01
Mi.
31.01
Do.
01.02
Fr.
02.02
Sa.
03.02
So.
04.02
Mo.
05.02
Particle number cm
-3
0
50
100
150
200
250
300
350
NO
x
in μg m
-3
UFP 20-500 nm
NOx
Mo
Tu
We
Th
Fr
Sa
Su