Nowadays, due to increase of energy demand and also increase vehicle fleet as well as decreasing of fossil fuel resources it is being tested alternative fuels, and among them, biodiesel. In this study, major cations (Na+, K+, NH4+, Ca2+ and Mg2+) and anions (formate, lactate, oxalate, succinate, F-, Cl-, NO3-, SO42-, and PO43-) were determined in PM1.0 directly emitted from burning of mixtures diesel / biodiesel (B4, B50) and pure biodiesel (B100) in diesel cycle engine coupled to a stationary dynamometer. Species were distributed in three groups (#1) those ones who had a decrease in their concentrations (SO42-, Ca2+, Mg2+, and succinate), (#2) who did not show any trend (F-, formate, oxalate, lactate, and Cl-), (#3) who had an increase in its concentration (K+, PO43-, Na+, NO3-, and NH4+) when the biodiesel amount was risen. This increase could be related to the biodiesel presence.

Estimates of major ions associated to ultrafine particles (PM<sub>1</sub>) exhausted from diesel/biodiesel blends

243rd National Meeting (2012)

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Estimates of major ions associated to ultrafine particles (PM1) exhausted from diesel/biodiesel blends

Estimates of major ions associated to ultrafine particles (PM₁) exhausted from diesel/biodiesel blends