The international conference TOXI2021 took place in Marseille, France on 11th - 13th November 2021 was organized in both Physical and Virtual formats. More than fifty attendees from 20 countries across the world listened over 45 lectures and could see 5 posters.

Participants from different parts of the world were connected together with network. All conference sessions of virtual format were chaired via web remote conference and all presentations were made online and who attended physical conference were given full access to all virtual presentations.

On behalf of the organizing committee, we'd like to thank all the keynote speakers, invited speakers and authors for your participation and cooperation during this conference!

Look forward to meeting you all face-to-face next year in Barcelona, Spain.