The 2018 Lower East Rift Zone (LERZ) eruption of Kīlauea volcano, Hawai’i, resulted in significant changes to the air quality issues associated with the volcano’s activity. Here we focus on the air quality impacts arising from the 2018 LERZ eruption and their spatial distribution and severity across the Island of Hawai’i in comparison to the previous decade of eruptive activity. This work has implications for volcanic aerosol and gas emission hazard during large basaltic eruptions.