Abstract
Exposure to indoor fine and ultrafine particulate matter (PM) has been recognised as a fundamental problem as most people spend over 85% of their time indoor. Experimental data derived from a field campaign conducted in a confined environment have been used to investigate the physical mechanisms governing indoor-outdoor PM exchanges in different operating conditions, e.g. natural ventilation and infiltration. An analytical model based on the mass balance of PM has been used to estimate indoor fine and ultrafine PM concentration. Indoor-outdoor concentration ratio, penetration factor and air exchange rate have been estimated and related to the differential pressure measured at the openings.
Highlights
For several years the scientific community pays attention to the problem of atmospheric particulate matter (PM) pollution, as the inhalable particles (
In this study a simplified analytical model based on the mass balance of PM was adopted to estimate fine and ultrafine PM concentrations within a room
I/O ratio, air exchange rate and penetration factor were estimated from a field campaign considering both natural ventilation and infiltration
Summary
For several years the scientific community pays attention to the problem of atmospheric particulate matter (PM) pollution, as the inhalable particles (
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