Exposure to diesel exhaust fumes in the context of exposure to ultrafine particles

2.50
Hdl Handle:
http://hdl.handle.net/10146/617290
Title:
Exposure to diesel exhaust fumes in the context of exposure to ultrafine particles
Authors:
Bujak-Pietrek, Stella; Mikolajczyk, Urszula; Kaminska, Irena; Cieslak, Małgorzata; Szadkowska-Stanczyk, Irena
Abstract:
Objectives: Diesel exhaust fumes emission is a significant source of ultrafine particles, the size of which is expressed in nanometers. People occupationally exposed to diesel exhaust particles include mainly workers servicing vehicles with engines of this type. This article presents the analysis of measurements of ultrafine particle concentrations occurring in the bus depot premises during the work connected with everyday technical servicing of buses. Material and Methods: The measurements were carried out in the everyday servicing (ES) room of the bus depot before, during and after the work connected with bus servicing. Determinations included: particle concentrations in terms of particle number and particle surface area, and mass concentrations of aerosol. Results: Mean value of number concentration of 10- to 1000-nm particles increased almost 20-fold, from 7600 particles/cm3 before starting bus servicing procedures to 130 000 particles/cm3 during the bus servicing procedures in the room. During the procedures, the mean surface area concentration of particles potentially deposited in the alveolar (A) region was almost 3 times higher than that of the particles depositing in the tracheo-bronchial (TB) region: 356.46 μm2/cm3 vs. 95.97 μm2/cm3, respectively. The mass concentration of the fraction of particulate matter with aerodynamic diameter 0.02–1 μm (PM1) increased 5-fold during the analyzed procedures and was 0.042 mg/m3 before, and 0.298 mg/m3 while the procedures continued. Conclusions: At the time when bus servicing procedures continued in the ES room, a very high increase in all parameters of the analyzed particles was observed. The diesel exhaust particles exhibit a very high degree of fragmentation and, while their number is very high and their surface area is very large, their mass concentration is relatively low. The above findings confirm that ultrafine particles found in diesel exhaust fumes may be harmful to the health of the exposed people, and to their respiratory tract in particular.
Affiliation:
Nofer Institute of Occupational Medicine, Lodz, Poland; Textile Research Institute, Lodz, Poland
Citation:
Int J Occup Med Environ Health 2016;29(4):667–682
Journal:
International Journal of Occupational Medicine and Environmental Health
Issue Date:
2016
URI:
http://hdl.handle.net/10146/617290
DOI:
10.13075/ijomeh.1896.00693
Additional Links:
http://www.journalssystem.com/ijomeh/Exposure-to-Diesel-exhaust-fumes-in-the-context-of-exposure-to-ultrafine-particles,60059,0,2.html; http://ijomeh.eu/Exposure-to-diesel-exhaust-fumes-nin-the-context-of-exposure-nto-ultrafine-particles,60059,0,2.html
Type:
Article
Language:
en_US
ISSN:
1232-1087
Sponsors:
grant agreement of Ministry of Science and Higher Education No. 5052/B/P01/2010/38
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorBujak-Pietrek, Stellaen
dc.contributor.authorMikolajczyk, Urszulaen
dc.contributor.authorKaminska, Irenaen
dc.contributor.authorCieslak, Małgorzataen
dc.contributor.authorSzadkowska-Stanczyk, Irenaen
dc.date.accessioned2016-07-21T10:21:48Z-
dc.date.available2016-07-21T10:21:48Z-
dc.date.issued2016-
dc.identifier.citationInt J Occup Med Environ Health 2016;29(4):667–682en
dc.identifier.issn1232-1087-
dc.identifier.doi10.13075/ijomeh.1896.00693-
dc.identifier.urihttp://hdl.handle.net/10146/617290-
dc.description.abstractObjectives: Diesel exhaust fumes emission is a significant source of ultrafine particles, the size of which is expressed in nanometers. People occupationally exposed to diesel exhaust particles include mainly workers servicing vehicles with engines of this type. This article presents the analysis of measurements of ultrafine particle concentrations occurring in the bus depot premises during the work connected with everyday technical servicing of buses. Material and Methods: The measurements were carried out in the everyday servicing (ES) room of the bus depot before, during and after the work connected with bus servicing. Determinations included: particle concentrations in terms of particle number and particle surface area, and mass concentrations of aerosol. Results: Mean value of number concentration of 10- to 1000-nm particles increased almost 20-fold, from 7600 particles/cm3 before starting bus servicing procedures to 130 000 particles/cm3 during the bus servicing procedures in the room. During the procedures, the mean surface area concentration of particles potentially deposited in the alveolar (A) region was almost 3 times higher than that of the particles depositing in the tracheo-bronchial (TB) region: 356.46 μm2/cm3 vs. 95.97 μm2/cm3, respectively. The mass concentration of the fraction of particulate matter with aerodynamic diameter 0.02–1 μm (PM1) increased 5-fold during the analyzed procedures and was 0.042 mg/m3 before, and 0.298 mg/m3 while the procedures continued. Conclusions: At the time when bus servicing procedures continued in the ES room, a very high increase in all parameters of the analyzed particles was observed. The diesel exhaust particles exhibit a very high degree of fragmentation and, while their number is very high and their surface area is very large, their mass concentration is relatively low. The above findings confirm that ultrafine particles found in diesel exhaust fumes may be harmful to the health of the exposed people, and to their respiratory tract in particular.en
dc.description.sponsorshipgrant agreement of Ministry of Science and Higher Education No. 5052/B/P01/2010/38en
dc.language.isoen_USen
dc.relation.urlhttp://www.journalssystem.com/ijomeh/Exposure-to-Diesel-exhaust-fumes-in-the-context-of-exposure-to-ultrafine-particles,60059,0,2.htmlen
dc.relation.urlhttp://ijomeh.eu/Exposure-to-diesel-exhaust-fumes-nin-the-context-of-exposure-nto-ultrafine-particles,60059,0,2.htmlen
dc.rightsArchived with thanks to International Journal of Occupational Medicine and Environmental Healthen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectoccupational exposureen
dc.subjectultrafine particlesen
dc.subjectdiesel engine exhausten
dc.subjectparticles number concentrationen
dc.subjectparticles surface area concentrationen
dc.subjectSEM/EDS analysisen
dc.titleExposure to diesel exhaust fumes in the context of exposure to ultrafine particlesen_US
dc.typeArticleen
dc.contributor.departmentNofer Institute of Occupational Medicine, Lodz, Poland; Textile Research Institute, Lodz, Polanden
dc.identifier.journalInternational Journal of Occupational Medicine and Environmental Healthen
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