CHEMICAL AND BIOLOGICAL CHARACTERISTICS OF EXHAUST EMISSIONS FROM TWO BIOETHANOL FUELS CONTAINING DIFFERENT DIESEL IGNITION IMPROVERS

This report describes the results of an investigation on the potential environmental and health impacts of exhaust emissions from ethanol fuel containing two different diesel ignition improvers, Avocet and Beraid. Avocet was used in fuel B and Beraid in fuel A. Emissions from these two ethanol fuels were compared with respect to contents of regulated and unregulated exhaust components, affinity of binding to the dioxin receptor and mutagenicity of compounds associated with particles and the semivolatile phase, risk estimates of exhaust components judged to be carcinogenic. Emissions from fuel B, contain smaller amounts of CO, particles, ethene and total particle-associated polycyclic aromatic hydrocarbons, but higher amounts of butadiene than did emissions from fuel A. With respect to the other components measured, these two fuels were approximately the same. In general the two fuel emissions give similar responses in the biological test, perhaps with a tendency to lower values of S9-dependent mutagenicity in the case of fuel B. From the point of view of cancer risk, these two ignition improvers are, within the limits of uncertainty, approximately equivalent. In this case the somewhat (not significantly) higher emission of butadiene from fuel B may balance for the lower amounts of particles and ethene emitted from this fuel. (A)

• Corporate Authors:

  KOMMUNIKATIONSFORSKNINGSBEREDNINGEN

  BOX 5706
  STOCKHOLM,   Sweden  S-114 97
• Authors:
  • WESTERHOLM, R
  • TOERNQVIST, M
  • RANNOG, U
  • EHRENBERG, L
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: 73 p.

Subject/Index Terms

• TRT Terms: Alternate fuels; Chemical analysis; Ethanol; Fuels; Health; Ignition; Improvements; Measurement; Pollutants
• ITRD Terms: 7163: Chemical analysis; 2442: Emission; 7346: Ethanol; 3850: Fuel; 2144: Health; 1327: Ignition; 9108: Improvement; 6136: Measurement; 2417: Renewable energy
• Subject Areas: Energy;

Filing Info

• Accession Number: 00731578
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD
• Created Date: Feb 27 1997 12:00AM