Amount of Air Ions Depending on Indoor Plant Activity. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 2, p. 267–273, 2015. DOI: 10.17770/etr2015vol2.247. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4000.. Acesso em: 11 mar. 2026.