1. C.N.R. Institute of Atmospheric Pollution
Cinzia PERRINO
C.N.R. Institute of Atmospheric Pollution
Montelibretti (Rome)
PM assessment report – part B
Contribution of Italy

2. A research project funded by the Lazio Region
“Fine Dust”
A research project funded by the Lazio Region
FONTECHIARI
regional background station
LATINA
urban station
ROMA MONTEZEMOLO
traffic station
MONTELIBRETTI
semi-rural station
ROMA VILLA ADA
urban background station
VITERBO
C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

3. Chemical analysis of macrocomponents
Only a few components constitutes more than 1% of PM:
A few metals: Al, Si, Fe
The main anions: Cl-, NO3-, SO4=, CO3-
The main cations: Na, NH4+, K+, Mg++, Ca++
Elemental carbon
Organic material (20-60% of PM but hundreds of species)
C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

4. PM10 PM2.5 Teflon filter Quartz filter Crustal metals ED-XRF
Termo-optical analyser
Organic carbon Elemental carbon
Extraction
Trace metals
ICP
Ion chromatography
Anions and cations
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

5. MASS CONCENTRATION OF PM10 IN MONTELIBRETTI (ROME)
MEASURED BY THE DUST MONITOR (blue)
AND RECONSTRUCTED BY THE CHEMICAL ANALYSES (red)
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

6. C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

7. Average % composition of PM10 in the Central Italy
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

8. Average % composition of PM2.5 in the Lazio region
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

9. PM10 PM2.5 PM10-2.5 Secondary pollutants are homogeneously distributed
at least on a regional scale.
PM10-2.5
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

10. C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

11. C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

12. PM composition during polluted days
PM10 concentration lower than 35 mg/m3
PM10 concentration higher than 65 mg/m3
PM composition during polluted days
is very close to PM composition during clean days
with the exception of days
characterised by important natural events
C.N.R. Institute of Atmospheric Pollution – Rome (ITALY)

13. African dust event February 2004:
MONTHLY AVERAGE OF PM10
(2004)
African dust event February 2004:
On February 22nd,
900 ug/m3 hourly average PM10
C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

14. AFRICAN DUST OUTBREAK - JUNE 2006
MONTELIBRETTI – PM10
C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)

15. The concentration of secondary anthropogenic pollutants
The concentration of primary anthropogenic pollutants depends on the proximity to the emission sources
The concentration of secondary anthropogenic pollutants
is homogeneous on a regional scale
The concentration variations of both mainly depend
on the dispersion capacity of the lower atmosphere
Northern Italy is affected
by more frequent stagnant condition
Southern Italy is more often affected
by Saharan dust intrusions
C. Perrino C.N.R. Istituto sull’Inquinamento Atmosferico – Montelibretti (Roma)