The Health Impacts of Ethanol Blend Petrol

Energies

Tom Beer²  John Carras¹  David Worth⁴  Nick Coplin⁴  Peter K. Campbell²  Bin Jalaludin³  Dennys Angove¹  Merched Azzi¹  Steve Brown⁵  Ian Campbell¹  Martin Cope²  Owen Farrell¹  Ian Galbally²  Stephen Haiser¹  Brendan Halliburton¹  Robert Hynes¹  David Jacyna¹  Melita Keywood²  Steven Lavrencic¹  Sarah Lawson²  Sunhee Lee²  Imants Liepa¹  James McGregor¹  Peter Nancarrow¹  Michael Patterson¹  Jennifer Powell²  Anne Tibbett¹  Jason Ward²  Stephen White¹  David Williams¹ 

[1] CSIRO Energy Technology, Lucas Heights, NSW, 2234, Australia; E-Mails:;CSIRO Marine and Atmospheric Research, PB1, Aspendale Vic. 3125, Australia; E-Mails:;Centre for Research, Evidence Management and Surveillance, SSWAHS, Australia; E-Mail:;Orbital Australia, Balcatta, WA, 6021, Australia; E-Mails:;Diesel Test Australia, PO Box 400 Kenthurst 2156 NSW, Australia; E-Mail:

关键词: ethanol;    health impacts;    automotive emissions;   

DOI  :  10.3390/en4020352

来源: mdpi

【 摘 要 】

A measurement program designed to evaluate health impacts or benefits of using ethanol blend petrol examined exhaust and evaporative emissions from 21 vehicles representative of the current Australian light duty petrol (gasoline) vehicle fleet using a composite urban emissions drive cycle. The fuels used were unleaded petrol (ULP), ULP blended with either 5% ethanol (E5) or 10% ethanol (E10). The resulting data were combined with inventory data for Sydney to determine the expected fleet emissions for different uptakes of ethanol blended fuel. Fleet ethanol compatibility was estimated to be 60% for 2006, and for the air quality modelling it was assumed that in 2011 over 95% of the fleet would be ethanol compatible. Secondary organic aerosol (SOA) formation from ULP, E5 and E10 emissions was studied under controlled conditions by the use of a smog chamber. This was combined with meteorological data from Sydney for February 2004 and the emission data (both measured and inventory data) to model pollutant concentrations in Sydney’s airshed for 2006 and 2011. These concentrations were combined with the population distribution to evaluate population exposure to the pollutant. There is a health benefit to the Sydney population arising from a move from ULP to ethanol blends in spark-ignition vehicles. Potential health cost savings for Urban Australia (Sydney, Melbourne, Brisbane and Perth) are estimated to be A$39 million (in 2007 dollars) for a 50% uptake (by ethanol compatible vehicles) of E10 in 2006 and $42 million per annum for a 100% take up of E10 in 2011. Over 97% of the estimated health savings are due to reduced emissions of PM_2.5 and consequent reduced impacts on mortality and morbidity (e.g., asthma, cardiovascular disease). Despite more petrol-driven vehicles predicted for 2011, the quantified health impact differential between ULP and ethanol fuelled vehicles drops from 2006 to 2011. This is because modern petrol vehicles, with lower emissions than their older counterparts, will make up a higher proportion of the fleet in the future. Hence the beneficial effects of reductions in particulate matter become less significant as the fleet as a whole produces lower emissions.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.