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Int. J. Environ. Res. Public Health 2017, 14(3), 288; doi:10.3390/ijerph14030288

Pedestrians in Traffic Environments: Ultrafine Particle Respiratory Doses

1
Department of Technological Innovations, National Institute for Insurance against Accidents at Work, Research Area, via Roberto Ferruzzi 38/40, I-00143 Rome, Italy
2
Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro, 5, I-00185 Rome, Italy
3
Department of Agriculture, Environment and Food, University of Molise, via de Sanctis, I-86100 Campobasso, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Norbert Mundorf and Colleen A. Redding
Received: 18 December 2016 / Revised: 2 March 2017 / Accepted: 6 March 2017 / Published: 9 March 2017
(This article belongs to the Special Issue Sustainable Transportation and Health)
View Full-Text   |   Download PDF [2537 KB, uploaded 13 March 2017]   |  

Abstract

Particulate matter has recently received more attention than other pollutants. PM10 and PM2.5 have been primarily monitored, whereas scientists are focusing their studies on finer granulometric sizes due both to their high number concentration and their high penetration efficiency into the respiratory system. The purpose of this study is to investigate the population exposure to UltraFine Particles (UFP, submicrons in general) in outdoor environments. The particle number doses deposited into the respiratory system have been compared between healthy individuals and persons affected by Chronic Obstructive Pulmonary Disease (COPD). Measurements were performed by means of Dust Track and Nanoscan analyzers. Forty minute walking trails through areas with different traffic densities in downtown Rome have been considered. Furthermore, particle respiratory doses have been estimated for persons waiting at a bus stop, near a traffic light, or along a high-traffic road, as currently occurs in a big city. Large differences have been observed between workdays and weekdays: on workdays, UFP number concentrations are much higher due to the strong contribution of vehicular exhausts. COPD-affected individuals receive greater doses than healthy individuals due to their higher respiratory rate. View Full-Text
Keywords: ultraFine particles; autovehicular traffic; granulometric size; number concentration; urban air; workday; exposure; dose deposition; human respiratory tract; COPD ultraFine particles; autovehicular traffic; granulometric size; number concentration; urban air; workday; exposure; dose deposition; human respiratory tract; COPD
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Manigrasso, M.; Natale, C.; Vitali, M.; Protano, C.; Avino, P. Pedestrians in Traffic Environments: Ultrafine Particle Respiratory Doses. Int. J. Environ. Res. Public Health 2017, 14, 288.

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