Description
This guide provides recommendations for carrying out harmonised air quality measurements within underground railway stations (URS). The main purpose of this guide is to acquire data on the air pollution levels that can be observed in URS, based on a joint approach that is subject to the consensus of a working group presided over by the Ministry of Ecological Transition, which brings together several rail operators, organising authorities, ministries and Ineris. The measurements cover the air in underground railways platforms and rolling stock.
They concern the atmosphere of underground platforms and the passenger compartments of the trains that serve them. They aim to characterise the concentration levels of certain pollutants to which passengers are exposed, mainly PM10 and PM2.5 particles, and the metals present in PM10 particles.
This methodology is not intended to meet the objective of continuous air quality monitoring, or the search for sources of pollution.
