Abstracts from the 2023 Inhaled Particles and NanOEH conference.

The article discusses keynotes from the 2023 Inhaled Particles and Nanomaterials and Occupational and Environmental Health (NanOEH) conference. Topics include the influence of ultrafine/nano particle toxicology on occupational safety and health, measurements of air pollutants and their impact on health, carbon nanotube carcinogenesis, the link between air pollution and mortality, and challenges in characterizing microplastic exposure and hazards.