نبذة مختصرة : The petrochemical industry is fertilizer industry factories whose production can have an impact on air quality. The industrial area has decreased environmental quality caused by air pollution. Air pollution comes from factory activities as well as motor vehicle fumes and forest burning. The decline in air quality is characterized by the accumulation of pollutant particles in the air. Spesies tree planting in the Petrochemical industry area aims to reduce air pollution. Trees that are able to withstand air pollution stress conditions are categorized as tolerant species. This study aims to determine the tolerance to air pollution by analyzing the Air Pollution Tolerance Index (APTI). Determination of the sampling is done by convinience sampling method with several sample criteria. The results showed that the APTI value of Filicium decipiens Wieght & Arn. (Fern Leaf Tree) was 5.08, Swietenia macrophylla King (Baywood) 5.62 and Mimusops elengi L. (Spanish Cherry) 5.93. This study shows that in the Petrochemical industry area, F. decipiens is categorized as a sensitive species, while S. macrophylla and M . elengi are categorized as moderately tolerant to air pollution based on tolerance category in Thakar and Mishra (2010).
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