PEMODELAN KUALITAS UDARA AMBIEN DI KAWASAN SEKITAR PELABUHAN BATU BARA KABUPATEN TAPIN MENGGUNAKAN AERMOD

Abstract

Loading and unloading activities at the Coal Port in Sungai Puting Village, Tapin Regency, generate particulate emissions such as TSP and PM10, posing risks to both health and the environment. This study aims to model the dispersion patterns of TSP and PM10 around the Coal Port in Sungai Puting Village, Tapin Regency, to provide a scientific basis for pollution control strategies. The dispersion modeling was conducted using AERMOD software, with emission data obtained from PT. Sucofindo and meteorological data from the Climate Data Store. Model validation was performed through field measurements over three days using a High Volume Air Sampler (HVAS). The modeling results indicated that the highest particulate concentrations occurred near the emission Source, peaking at 454.6 µg/m³ for TSP and 246 µg/m³ for PM10, significantly influenced by meteorological factors. Although the measured concentrations at receptor points remained below the ambient air quality standards stipulated in Government Regulation No. 22 of 2021, model validation using the Index of Agreement (IOA) yielded values of 0.99 for both TSP and PM10. These results demonstrate the high accuracy of AERMOD in identifying high-risk areas and its effectiveness as a tool for formulating air quality control policies.

Keywords: AERMOD, TSP, PM10, Coal Port, Air Quality, Particulate Dispersion