Analysis of air and noise pollution caused by sub-activities of residential construction using personal measuring instruments combined with video recording
Abstract:
This is attributed to construction activities in the area around Bangkok Metropolitan. These constructions are causing air and noise pollution, significantly affecting workers. Therefore, this research aims to analyze air and noise pollution (PM 2.5, PM 10, NO2, CO, dB(A)) caused by sub-activities of residential construction using personal measuring instruments combined with video recordings. Through the use of IoT (Internet of Things) technology, dust and gas sensors, along with IP cameras, are installed with workers to ascertain the concentration of pollutants from these sub-activities. Traditionally, air and noise pollution have been measured by the average amount of pollutants exposed to workers over time. The instruments used for such measurements are typically large, expensive, and unable to pinpoint the specific sub-activities causing air and noise pollution. However, this research utilizes instruments and IP cameras installed with workers to determine the concentration of pollutants from sub-activities. If it exceeds the standard value, notifications are sent to safety officers via Line Notify. Subsequently, the proposed instrument was employed to measure air and noise pollution in four case studies. The results demonstrated that the sub-activity with the highest concentration of pollutants is welding steel, which contains PM 2.5 and PM 10 exceeding standard values, resulting in a very unhealthy condition. While, CO and NO2 are exceeding standard values, resulting in a unhealthy condition. Moreover, this study has limitations, primarily related to the minimum and maximum detection capabilities of the sensors.