PERFORMANCE EVALUATION OF METAL SEMICONDUCTING SENSOR BY NBKI METHOD AND UV ABSORPTION METHOD IN OZONE MEASUREMENT IN AMBIENT AIR

• Main Author: Avicenna A S, M
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/75190
• Institution: Institut Teknologi Bandung

Ozone is one of parameter in air quality that important to be measured and monitored. Excessive ozone exposure can have adverse effects humans and other living things, such as causing lung disease, disrupting the photosynthesis process of plants, and damaging living creature ecosystem. One of the low-cost measurement alternatives is a low-cost ozone sensor. This paper discusses the comparison of Aeroqual S500 measurement results with the method used as a national standard in Indonesia, neutral buffered kalium iodide (NBKI) (SNI 7119-8, 2017), as a reference method and UV Absorption method that used by DLH DKI Jakarta as equivalent method. Based on the results of this study, the accuracy and precision performance of the Aeroqual S500 is relatively good based on both method, especially equivalent method. The Aeroqual S500 measurement results have a precision of 80.147% for the combined frequency of 1 minute and 2 minutes. Where the Aeroqual S500 measurement results have preciosion a correlation (r = 0.579) with (p-value = 0.000) and regression (R2 = 0.3348) with NBKI. While Aeroqual S500 measurement results have a correlation (r = 0. 940) with (p-value = 0.000) and regression (R2 = 0.8845) with AQMS-300. RMSE (Root Mean Square Error) calculated the error range of Aeroqual S500 against equivalent method, which is 18,371 µg/m. 3