REVIEW REPORT FOR UKRAINE
D. Non-key sources
3. Civil aviation: liquid fuels CO2
48. Ukraine assumed in its calculations that all jet kerosene consumption is related to domestic aviation for the entire time series. Neither AD nor emissions were reported for international aviation emissions. The ERT recommended Ukraine to collect information on the number of domestic flights to enable the estimation of jet kerosene consumption for domestic aviation, and to subtract this amount from the total consumption to obtain the international share of jet kerosene consumption; or conversely to first collect information on the number of international flights and estimate jet kerosene consumption for international aviation and then estimate the domestic share of jet kerosene consumption.
81. In Section 1.A.3.c of its CRF spreadsheet (fuel use by Railways), Ukraine uses the notation “not estimated” (NE) for N2O emissions from solid and liquid fuels. This appears to be due to the lack of appropriate emission factors since corresponding estimates for CO2. The reason for not estimating these emissions even though activity data are available should be explained.