Physical and Chemical Characterization of Real-World Particle Number and Mass Emissions from City Buses in Finland

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F16%3A00002619" target="_blank" >RIV/46747885:24620/16:00002619 - isvavai.cz</a>

Result on the web

<a href="http://www.ncbi.nlm.nih.gov/pubmed/26682775" target="_blank" >http://www.ncbi.nlm.nih.gov/pubmed/26682775</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.est.5b04105" target="_blank" >10.1021/acs.est.5b04105</a>

Result language

angličtina

Original language name

Physical and Chemical Characterization of Real-World Particle Number and Mass Emissions from City Buses in Finland

Original language description

Exhaust emissions of 23 individual city busesrnat Euro III, Euro IV and EEV (Enhanced Environmentally Friendly Vehicle) emission levels were easured by thernchasing method under real-world conditions at a depot area and on the normal route of bus line 24 in Helsinki. The buses represented different technologies from the viewpoint of engines, exhaust after-treatment systems (ATS) and fuels. Some of the EEV buses were fueled by diesel, diesel-electric, ethanol (RED95) and compressed natural gas (CNG). At the depot area the emission factors were in the range of 0.3-21 × 1014 # (kg fuel)−1, 6−40 g (kg fuel)−1, 0.004−0.88 g (kg fuel)−1, 0.004−0.56 g (kg fuel)−1, 0.01−1.2 g (kg fuel)−1, for particle number (EFN), nitrogen oxides (EFNOx), black carbon (EFBC), organics (EFOrg), and particle mass (EFPM1), respectively. The highest particulate emissions were observed from the Euro III and Euro IV buses and the lowest from the ethanol and CNG-fueled buses, which emitted BC only during acceleration. The organics emitted from the CNG-fueled buses were clearly less oxidized compared to the other bus types. The bus line experiments showed that lowest emissions were obtained from the ethanol-fueled buses whereas large variation existed between individual buses of the same type indicating that the operating conditions by drivers had large effect on the emissions.

Czech name

—

Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JT - Propulsion, engines and fuels

OECD FORD branch

—

Project

<a href="/en/project/ED0005%2F01%2F01" target="_blank" >ED0005/01/01: Centre for nanomaterials, advanced technologies and innovation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Science and Technology

ISSN

0013-936X

e-ISSN

—

Volume of the periodical

50

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

294-304

UT code for WoS article

000367866300034

EID of the result in the Scopus database

2-s2.0-84953432299