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Are zero-emission vehicles really free of emissions? - Robert Benney

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Early Career Group Meetup, Manchester, January 2018

Publicado en: Medio ambiente
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Are zero-emission vehicles really free of emissions? - Robert Benney

  1. 1. Are zero-emission vehicles really free of emissions? Robert Benney
  2. 2. Introduction  About me;  Compliance with roadside NO2 standards;  Challenges facing roadside NO2 compliance;  Emission Paradox – Zero Emission Vehicles;  Knock, knock WHO’s there; and  Summary.
  3. 3. Compliance with Roadside NO2 standards
  4. 4. Challenges facing Roadside NO2 compliance  Some Euro VI fail to meet emission standards: 2016 Fiat 500 XL emits over 12 times more NOx than emission standard (0.08 g/km);  No annual review of vehicles NOx emission rate: MOT currently only checks smoke number;  Emission cheat devices;  Will charging clean air zones deter more polluting vehicles as anticipated; and  Blind spots in LAQM or PCM methodology.
  5. 5. Emissions Paradox – Zero Emission vehicles  Break and tyre wear and resuspension of road particulates;  Electric Vehicle Weight Vs Internal Combustion Weight;  Timmers et al paper shows the evidence for increased non-exhaust emissions and weight;  Current peak electricity demand is 60 GW, National Grid forecasts between 6 to 18 additional GW – equivalent to 2 to 6 Hinckley Point Cs; and  22% of National Grid’s STOR energy from emergency diesel generators. 1 – 1.2 tonnes 1.5 tonnes
  6. 6. Knock, Knock, WHO’s there?  Ambient Air Quality and UK Air Quality Standards Particulates (except Scotland) higher than World Health Organisation;  WHO Guideline Values may cause problems; and  Manchester pledged to meet WHO PM2.5 standard by 2030.
  7. 7. Summary  Compliance with NO2 standards ‘shortest time possible’ will face challenges;  Eventually there will be compliance with roadside NO2 concentrations;  Electric Vehicles could cause localised NO2 exceedances associated within emergency diesel generators;  Electric vehicles directly emit non-exhaust particulates;  Adoption of PMx WHO guideline values into statutory limit values will introduce exceedances; and  PM likely to become next problem pollutant.
  8. 8. Questions?  Should we as air quality practitioners only start considering WHO particulate guidelines once adopted into law/UK policy?

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