Air Quality Monitoring System in South Tangerang Based on Arduino Uno: From Analysis to Implementation

Pollution is a major factor in reducing air quality. A decrease in air quality can cause many problems such as global climate change, environmental damage, asthma and lung cancer. In this paper, we present an air quality monitoring system based on the Arduino Uno at Tangerang City. Air quality measured was carbon monoxide (CO), butane (C₄H₁₀), particulate matter (PM₂₅) and ozone (O₃). The types of sensors used were MQ-131 for the ozone sensor (O₃), MQ-7 for carbon monoxide (CO), GP2Y1010AU0F for the particulate matter (PM₂₅), and MQ-2 for butane (C₄H₁₀). This tool was built using Arduino and data from the sensor was sent to a Liquid Crystal Display (LCD) which visualized in numeric form. Data collection was carried out at Jalan Cabe Raya Pondok Cabe, South Tangerang. The test results showed the carbon monoxide (CO) had an average concentration of 2.79 ppm, the ozone gas concentration (O₃) was 0.08 ppm particulate matter concentration (PM₂₅) was 35.51 µg/m³ and butane average concentration (C₄H₁₀) was 35.05 ppm. Based on the data obtained, South Tangerang, Indonesia had a high level of pollution in particulate matter (PM _{2 5}).