Thank you for thorrow answers to the questions of the referees. The manuscript has considerably improoved, however, there are still some issues left that need some attention.

Throughout the paper, pleas use 'particle mass (or PM mass) size-distribution' instead of 'size-segregated particle mass distributions'

The fact that all 4-HMV tests were done at different sampling conditions (without dilution) could have significantly influenced especially the measured OC and hence the EC/OC ratios and PM mass, but also EC is influenced by the dilution. The EF for PM mass are also the lowest measured. The potential influence of the different sampling methods needs to be highlighted when the different ship types are compared, especially in terms of OC/EC or PM mass.

In Fig. 2 and 6 in the text to the y-axes replace "... distribution IN different particle size bins (%)" into "... distribution BETWEEN different particle size bins (%)". There are several places in the text where the wording should be changed accordingly

Some additional comments are inserted in your response document

I have few small comments/suggestions for you to consider