IoT-based Estimation System for Microcystis aeruginosa Cyanobacteria in Laguna de Bay using an Arduino-controlled Spectrophotometric Device

• Published in: E3S web of conferences Vol. 325; p. 4007
• Main Authors: Alejandrino, Lawrence D., Jocson, Jessica Joy D., Mirarza, Micah Romina R., Dimaunahan, Ericson D., Garcia, Ramon G, Valiente, Flordeliza L
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 2021
• Subjects: Algorithms; Cyanobacteria; Drinking water; Estimation; Freshwater lakes; Microcystis; Spectrophotometry; Support vector machines; Water analysis; Water sampling
• DOI: 10.1051/e3sconf/202132504007
• EISSN: 2267-1242
• ISSN: 2267-1242; 2555-0403

Laguna de Bay, the largest freshwater lake in the Philippines, provides livelihood to the fishermen and serves as a source of potable water to the locals. However, freshwater quality has degraded, whereas one of the main contributors are Cyanobacteria that produce cyanotoxins. Existing studies that uses a similar device are either too expensive or too bulky. The purpose of this study is to estimate the cyanobacteria concentration by using a low-cost 16-channel spectrophotometric device to determine the level of severity efficiently. Using Linear Regression, the dataset is modelled by the algorithm to estimate the number of cyanobacteria present on the water sample, while Support Vector Machine (SVM) algorithm for severity level classifier. This study achieved high accuracy in estimating the cyanobacteria using linear regression and classifying the level of severity by support vector machine.