[Validation of PM10 and PM2.5 personal samplers: comparison between PEM and CEN-ARPAV selectors].
In order to validate specific personal selectors for the collection of fine particles, 65 double measurements of PM10 and PM2.5 were carried out at the same collection site; thus allowing a comparison between two different methods of sampling. The first method was that normally used by ARPAV in order to sample the above-mentioned granulometric fractions in outdoor environment. The second method was chosen by us for personal sampling (PEM working at 2 l/min and at 4 l/min). In both cases the filters gravimetric analysis conformed to the expectations of D.M. 60 of 2/4/2002. The comparison between the two methods showed a good correlation in both the granulometric fractions: correlation coefficients r for the PM2.5 are equal to 0.96 and 0.99 for the PEM working at 2 l/min and at 4 l/min respectively; r for the PM10 are equal to 0.98 and 0.99 for the PEM working at 2 l/min and at 4 l/min respectively. The analysis of results in terms of fine particles concentration and difference between methods against their mean, shows a slight overestimate of the particles concentration with PEM working at 2 l/min, compared to those working at 4 l/min. Nevertheless, considering the good results obtained even with a flow of 2 l/min, we believe that using PEM working at 2 l/min to monitoring 24 hours-personal exposure assures an improved capacity in the battery-operated pumps.
Scapellato
M L
ML
Dipartimento di Medicina Ambientale e Sanità Pubblica, Università degli Studi di Padova. marialuisa.scapellato@unipd.it
Tessari
R
R
Bonfiglio
E
E
Benassi
A
A
Tieppo
P
P
De Bortoli
A
A
Serraino
S
S
Carrieri
M
M
Maccà
I
I
Gori
G
G
Bartolucci
G B
GB
D000393:Air Pollutants / Q000032:analysis*; D004781:Environmental Exposure; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D010316:Particle Size; D013997:Time Factors
D000393:Air Pollutants