Kiatsoongsong, P. and Ekvitayavetchanukul, P. 2025. Associations Between Daily PM2.5 Exposure and Respiratory Symptoms in Thai Adolescents: Evidence from Nonthaburi Province. American Journal of Environment and Climate. 4, 3 (Sep. 2025), 59–68. DOI:https://doi.org/10.54536/ajec.v4i3.5093.