Experimental study of polyurethane foam absorption of transportation exhaust gas pollutants in Pondok Labu city South Jakarta

Motor vehicles are a significant source of PAH (PAH) emissions. A better understanding of the relationship between fuel composition and PAH emissions is needed to determine whether fuel reformulation is a viable approach to reducing PAH emissions. The content of Poly Aromatic Hydrocarbons contained in the fuel with the largest concentration is as follows: types of phenanthrene, anthracene, fluoranthene, fluorene, Pyrene. This study aims to 1. Determine the Poly Aromatic Hydrocarbon (PAH) pollutant emitted by the exhaust of city vehicles in the area of Pondok Labu, South Jakarta, through direct absorption from the exhaust at a certain time and speed of gas flow. 2. Passive PAH determination by placing Polyurethane Foam (PUF) adsorbent at the Pondok Labu market intersection, which is an area where 8 public transportation routes pass and road conditions are relatively congested. LMW type PAHs that can be adsorbed by PUF adsorbents are PAHs that have 2-3 benzene rings consisting of Naphthalene, Acenaphthylene. While the PAH type HMW with 4-6 benzene rings consisting of Fluoranthene, Pyrene, Benzo (a) anthracene, Chrysene, Benzo (b) fluoranthene, Benzo (a) pyrene, and Benzo (ghi) perylene. Direct absorption of PAHs in the exhaust of city vehicles with time variables of 1, 3, and 5 hours, obtained the total concentration of PAHs which have 5 and 6 aromatic rings was 2.3269 ppm, 2.3998 ppm, 4.0929 ppm which increased with increasing time. While the absorption of PAH at the intersection on the 7th and 14th-day variables was 5.7317 ppm or 46.94% and 6.4749 ppm or 53.0569%. Two-and three-ringed PAH particle fractions were not detected, while only 2.68% of the four-ringed PAHs were fluoranthene. Studying the experimental PUF adsorbent for direct and indirect PAH absorption, it was found that two types of PAHs which have 5 and 6 aromatic rings that are carcinogenic can be absorbed with the largest concentration at 20 grams of PUF.