Real-Time Monitoring System for CO Pollutant Concentration Using Fuzzy Logic on an Internet of Things (IoT) Platform and Telegram Around UNNESGalih Ridho Utomo, Fajar Wahyushi Fuedsi, Nining Hardiyanti, Muhammad Hasan Mustofa and Ade YulianaBIO Web Conf., 144 (2024) 03004DOI: https://doi.org/10.1051/bioconf/202414403004