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ef_vein_eea_exhaust

Source: R/ef_vein_eea_exhaust.R
ef_vein_eea_exhaust.Rd

Functions to calculate vehicle speed-based hot exhaust emission factors using on EMEP/EEA guidelines 2019 methods.

Usage

ef_vein_eea_exhaust(
  veh.spd = NULL,
  veh.type = NULL,
  veh.wt = NULL,
  veh.segment = NULL,
  em.type = NULL,
  route.def = NULL,
  eng.type = NULL,
  eng.fuel = NULL,
  fuel.corr = TRUE,
  em.source = "exhaust",
  euro.class = NULL,
  exh.tech = NULL,
  eng.load = NULL,
  route.slope = NULL,
  route.mode = NULL,
  verbose = FALSE,
  ...
)

ef_vein_eea_exhaust_ch4(em.type = "ch4", ...)

ef_vein_eea_exhaust_nmhc(em.type = "nmhc", ...)

ef_vein_eea_exhaust_co(em.type = "co", ...)

ef_vein_eea_exhaust_nox(em.type = "nox", ...)

ef_vein_eea_exhaust_pm2.5(em.type = "pm2.5", ...)

ef_vein_eea_exhaust_pm10(em.type = "pm10", ...)

Source

Average speed curves are based on European Environment Agency 2019 EMEP/EEA methods as documented in:

European Environment Agency, 2019. EMEP/EEA air pollutant emission inventory guidebook. https://www.eea.europa.eu/publications/emep-eea-guidebook-2019

And as implemented in R package vein:

Ibarra-Espinosa, S., Ynoue, R., O'Sullivan, S., Pebesma, E., Andrade, M. D. F., and Osses, M.: VEIN v0.2.2: an R package for bottom-up vehicular emissions inventories, Geosci. Model Dev., 11, 2209-2229, https://doi.org/10.5194/gmd-11-2209-2018, 2018.

Ibarra-Espinosa S (2022). vein: Vehicular Emissions Inventories. R package version 0.9.9, https://CRAN.R-project.org/package=vein.

Fuel corrections are based on:

TRL Emission Factors - scaling factors for mileage and improvements in fuel quality https://www.gov.uk/government/publications/road-vehicle-emission-factors-2009

Arguments

veh.spd

average vehicle speed, in km/h.

veh.type

vehicle type, currently only coded for buses, see Note.

veh.wt

vehicle weight, in km.

veh.segment

EEA vehicle sub-classification, specific to vehicle type. For buses, embrs assigns this using veh.type and veh.wt, so it can often be ignored.

em.type

type of emission, currently CO, NOx, CH4, NMHC and PM (PM2.5 or PM10; see Note).

route.def

route description, optional for ef_vein_eea() functions.

eng.type

engine type: ice, etc.

eng.fuel

fuel used by the vehicle: diesel, biodiesel, cng, etc.

fuel.corr

(logical) apply fuel correction, see Note.

em.source

emission source: currently, exhaust only.

euro.class

EURO classification: PRE, I, II, III, IV, V or VI only.

exh.tech

exhaust technology: for euro.class IV SCR or EGR, for V SCR or EGR, and for VI DPF+SCR only

eng.load

engine load, as proportion: 0. 0.5 or 1 only.

route.slope

route slope, as proportion: -0.06, -0.04, -0.02, 0, 0.02, 0.04 or 0.06 only.

route.mode

route driving/journey mode: Urban Peak, Urban Off Peak, Rural, Motorway, or NA (not defined).

verbose

(logical) If TRUE, include methods details when reporting EF predictions.

...

other arguments, currently ignored

Note

The embrs functions are currently only coded for buses, veh.type="bus".

Strictly, EEA 2019 PM exhaust emission factors are PM, but because vehicle exhaust PM is fine it is typically assumed that:

PM10 = PM2.5 = PM for exhaust emissions from most conventional diesel and gasoline vehicles.

Fuel Corrections are applied to account for improvements in emissions associated with improvements in fuel quality,