Short Communication: The effects of SO2 and NO2 fumigation on the chlorophyll of Parmotrema perlatum from Mt. Lawu, Cemoro Sewu, Indonesia

Abstract. Roziaty E, Sutarno, Suntoro, Sugiyarto. 2023. Short Communication: The effects of SO2 and NO2 fumigation on the chlorophyll Parmotrema perlatum from Mt. Lawu, Cemoro Sewu, Indonesia. Biodiversitas 24: 2630-2637. Lichens are symbiotic organisms composed algae fungi. have long been recognized as bioindicators environmental health. One lichen parts that will be affected by pollution is chlorophyll. thallus was fumigated with gases motor vehicle emissions. lichens under study were (Huds.) M. Choisy, found in Sewu Forest, Magetan, East Java. categorization emission exposure levels includes Level 0 (no fumigation, control group), 1 (1.5 hours), 2 (3 3 (4.5 4 (6 5 (7.5 hours) 6 (9 hours). had already examined spectrophotometry. Sulfuric dioxide (SO2) measured at 324 nm 328 nm, whereas nitrogen 645 663 nm. Each test replicated three times (R1, R2, R3). highest content. content 4.00 6, while lowest 2.14 (Control). 1.856 0.231 0, identified (0.245 µg ml-1). b 0.659 (Level 4), (0.413 responded positively to exposure. Correlation tests between four components, specifically NO2, SO2, chlorophyll, show a positive correlation pollutants