Exposure assessment of particulates of diesel and natural gas fuelled buses in silico

Pietikäinen, Mari; Oravisjärvi, Kati; Rautio, Arja; Voutilainen, Arto; Ruuskanen, Juhani; Keiski, Riitta L.

doi:10.1016/j.scitotenv.2009.09.032

Cited by 20 publications

(7 citation statements)

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“…UFP percentage contribution was about 75% and confirms previous measurements, performed in a street canyon in downtown Rome, in which their percentage ranged between 70%–95% [49,50]; studies performed in other urban environments, in cities other than Rome, reported a percentage contribution of particles below 100 nm of about 80% of the total particle number concentration [51,52,53,54,55]. …”

Section: Resultssupporting

confidence: 87%

Pedestrians in Traffic Environments: Ultrafine Particle Respiratory Doses

Manigrasso

Natale

Vitali

et al. 2017

IJERPH

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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.

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Section: Resultssupporting

confidence: 87%

Pedestrians in Traffic Environments: Ultrafine Particle Respiratory Doses

Manigrasso

Natale

Vitali

et al. 2017

IJERPH

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“…The simulations focused on the computation of NO X emissions since the main problem in FL air quality-wise is associated to the high levels of NO 2 (Borge et al, 2014). However, PM 10 emission computation was also addressed due to their harmful effects to human health (Pietikäinen et al, 2009;Ristovski et al, 2012).…”

Section: Modelling Domainmentioning

confidence: 99%

Microscale traffic simulation and emission estimation in a heavily trafficked roundabout in Madrid (Spain)

Quaassdorff

Borge

Pérez

et al. 2016

Science of The Total Environment

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“…Among different particle dosimetry models (ICRP, 1994;Voutilainen et al, 2004;Pietik€ ainen et al, 2009;Manigrasso and Avino, 2012;Avino et al, 2013;Manigrasso et al, 2013) and pulmonary morphometric models (Yeh et al, 1979;Yeh and Schum, 1980;Raabe et al, 1976;Koblinger and Hofmann, 1985;Asgharian et al, 2001) present in literature, the Multiple-Path Particle Dosimetry (MPPD v2.1, ARA 2009) model has been considered in the present paper. MPPD model has been developed by the Hamner Institutes for Health Sciences and the Dutch National Institute for Public Health and the Environment (RIVM) (Asgharian et al, 2001), it is able to estimate the dose received by people as a function of the size and the airway generation number.…”

Section: Dose Evaluationmentioning

confidence: 99%