Particulate Matter Concentrations In A New
Section Of Metro Line: A Case Study In Italy
Author(s)
A. Cartenì & S. Campana
Abstract
All round the world, many studies have measured elevated concentrations of
Particulate Matter (PM) in underground metro systems, with non-negligible
implications for human health due to protracted exposition to fine particles.
Starting from this consideration, the aim of this research was to investigate what
is the \“aging time” needed to measure high PM concentrations also in new
stations of an underground metro line. This was possible taking advantage of the
opening, in December 2013, of a new section of the Naples (Italy) line 1
railways. The Naples underground metro line 1 before December 31 was long –
about 13 km with 14 stations. The new section, opened in December, consists of
5 new kilometres of line and 3 new stations. During the period December 2013–
January 2014, an extensive sampling survey was conducted to measure PM10
concentrations both in the \“historical” stations and in the \“new” ones. The results
of the study are twofold: a) the PM10 concentrations measured in the historical
stations confirm the average values of literature; b) just a few days after the
opening of the new metro section, high PM10 concentrations were also measured
in the new stations with average PM10 values comparable (from a statistical point
of view) with those measured in the historical stations of the line. This result
suggests that PM10 pollution in the historical section is delivered by the motion
of the trains, almost immediately, into the new section of the line (\“piston
effect”).
Keywords: Particulate Matter, PM, underground rail, transport
microenvironment, indoor quality.
Keywords
Particulate Matter, PM, underground rail, transport
microenvironment, indoor quality.
Related Book
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