ChooChuay, Chomsri published the artcileEffects of Agricultural Waste Burning on PM2.5-Bound Polycyclic Aromatic Hydrocarbons, Carbonaceous Compositions, and Water-Soluble Ionic Species in the Ambient Air of Chiang-Mai, Thailand, Product Details of C24H12, the publication is Polycyclic Aromatic Compounds (2022), 42(3), 749-770, database is CAplus.
PM2.5 is a widely regarded major air pollutant due to its adverse health effect and intimate relationship with the climate system. This work characterized the chem. components (e.g., organic and elemental C [OC, EC], water soluble ionic species [WSIS], polycyclic aromatic hydrocarbons [PAH]) in PM2.5 collected over Doi-Inthanon in Chiang-Mai, the highest mountain in Thailand. All samples (n = 50) were collected by MiniVolTM portable air samplers Mar. 2017-Mar. 2018. The average PM2.5 concentration was 100 ¡À 48.6¦Ìg/m3. The OC:EC ratio was 6.8 ¡À 3.0; the decreasing order of WSIS concentrations was: SO42- > Na+ > Ca2+ > NH4+ > NO3– > K+ > Cl– > NO2– > Mg2+ > F–. Total concentrations of nineteen PAH were defined as the sum of Ace, Fl, Phe, Ant, Fluo, Pyr, B[a]A, Chry, B[b]F, B[k]F, B[a]F, B[e]P, B[a]P, Per, Ind, B[g,h,i]P, D[a,h]A, Cor, and D[a,e]P. The total PAH concentration 2.361 ¡À 2.154¦Ìg/m3. Principal component anal. (PCA) highlighted the importance of vehicle exhaust, biomass burning, diesel emissions, sea-salt aerosols, and fertilizer volatilization as the five dominant potential sources, accounting for 51.6, 16.2, 10.6, 5.20, and 3.70% of total variance, resp. The remaining 12.7% variance is associated with unidentified local and regional sources, e.g., incinerators, joss paper/incense burning, domestic cooking. PCA source estimation results underlined the importance of vehicle exhaust as the major PM2.5 contributor in ambient air over Don-Inthanon, Chiang-Mai Province. It is crucial to emphasize the effect of agricultural waste burning, fossil fuel combustion, coal combustion, and forest fires on OC, EC, and WSIS concentration variations was not negligible.
Polycyclic Aromatic Compounds published new progress about 191-07-1. 191-07-1 belongs to catalysis-chemistry, auxiliary class Electronic Materials, name is Coronene, and the molecular formula is C24H12, Product Details of C24H12.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia