Abstract
Metropolitan underground railway transport systems are a very important part of the urban traffic since they carry millions of passengers per day in a number of cities around the world. They represent a segregated traffic microenvironment because of their closed character and restricted ventilation, lack of sunlight, specific emission sources and meteorological conditions. Concentrations of some air pollutants including aerosol particles are usually higher in underground railways than in corresponding external outdoor areas, which can considerably increase commuters' daily exposures. At the same time, the chemical composition and properties of indoor aerosol particles differ substantially from those for outdoor air; the particles are larger and heavier, are mainly composed of Fe, and contain less soot, and, therefore, their impact on morbidity and mortality is expected to be different. Nevertheless, some transition metals, i.e., Fe, Mn, Ni, Cu and Cr can be of concern. In the present paper we overview the physical and chemical properties and behaviour of the aerosol particles, as well as their major emission sources, compare the information and knowledge available for the underground railways, and discuss their health implications and conclusions in general.
| Original language | English |
|---|---|
| Title of host publication | Issues in Environmental Science and Technology |
| Pages | 65-84 |
| Number of pages | 20 |
| Volume | 28 |
| Publication status | Published - 2009 |
Publication series
| Name | Issues in Environmental Science and Technology |
|---|---|
| Volume | 28 |
| ISSN (Print) | 13507583 |
| ISSN (Electronic) | 14651874 |
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ASJC Scopus subject areas
- Environmental Science(all)
Cite this
Air pollution in underground railway systems. / Salma, I.
Issues in Environmental Science and Technology. Vol. 28 2009. p. 65-84 (Issues in Environmental Science and Technology; Vol. 28).Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Air pollution in underground railway systems
AU - Salma, I.
PY - 2009
Y1 - 2009
N2 - Metropolitan underground railway transport systems are a very important part of the urban traffic since they carry millions of passengers per day in a number of cities around the world. They represent a segregated traffic microenvironment because of their closed character and restricted ventilation, lack of sunlight, specific emission sources and meteorological conditions. Concentrations of some air pollutants including aerosol particles are usually higher in underground railways than in corresponding external outdoor areas, which can considerably increase commuters' daily exposures. At the same time, the chemical composition and properties of indoor aerosol particles differ substantially from those for outdoor air; the particles are larger and heavier, are mainly composed of Fe, and contain less soot, and, therefore, their impact on morbidity and mortality is expected to be different. Nevertheless, some transition metals, i.e., Fe, Mn, Ni, Cu and Cr can be of concern. In the present paper we overview the physical and chemical properties and behaviour of the aerosol particles, as well as their major emission sources, compare the information and knowledge available for the underground railways, and discuss their health implications and conclusions in general.
AB - Metropolitan underground railway transport systems are a very important part of the urban traffic since they carry millions of passengers per day in a number of cities around the world. They represent a segregated traffic microenvironment because of their closed character and restricted ventilation, lack of sunlight, specific emission sources and meteorological conditions. Concentrations of some air pollutants including aerosol particles are usually higher in underground railways than in corresponding external outdoor areas, which can considerably increase commuters' daily exposures. At the same time, the chemical composition and properties of indoor aerosol particles differ substantially from those for outdoor air; the particles are larger and heavier, are mainly composed of Fe, and contain less soot, and, therefore, their impact on morbidity and mortality is expected to be different. Nevertheless, some transition metals, i.e., Fe, Mn, Ni, Cu and Cr can be of concern. In the present paper we overview the physical and chemical properties and behaviour of the aerosol particles, as well as their major emission sources, compare the information and knowledge available for the underground railways, and discuss their health implications and conclusions in general.
UR - http://www.scopus.com/inward/record.url?scp=84872059682&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872059682&partnerID=8YFLogxK
M3 - Chapter
SN - 9781847559074
VL - 28
T3 - Issues in Environmental Science and Technology
SP - 65
EP - 84
BT - Issues in Environmental Science and Technology
ER -