Tian, Mi published the artcileMeasurement of size-segregated airborne particulate bound polycyclic aromatic compounds and assessment of their human health impacts – A case study in a megacity of southwest China, HPLC of Formula: 191-07-1, the publication is Chemosphere (2021), 131339, database is CAplus and MEDLINE.
Particle size distribution of particulate polycyclic aromatic compounds (PACs) is one of the important factors controlling human exposure to PACs in air. In this study, size-segregated airborne particle samples were collected in a megacity in southwest China to analyze PACs concentrations and evaluate related health risks. Annual average concentrations of ¦²19PAHs (polycyclic aromatic hydrocarbons, 17.4 ng/m3) and ¦²10OPAHs (oxygenated PAHs, 15.3 ng/m3) were one order of magnitude higher than those of ¦²9MPAHs (Me PAHs, 0.97 ng/m3) and ¦²27NPAHs (nitrated PAHs, 1.54 ng/m3). More than 55% of PACs masses were associated with fine particles (aerodynamic diameter Dae < 2.1¦Ìm). Inhalation exposure assessment showed that less than 60% of particulate bound PACs could deposit in the respiratory tract, which implies that the traditional model using ambient concentration of PACs would overestimate the inhalation risk. On the other hand, incremental lifetime cancer risks from dermal absorption (ILCRderm) were comparable to those from inhalation (ILCRinh) exposure despite the much lower daily dermal absorption dose than the daily inhalation dose, which implies that the health impact might be underestimated if only considering inhalation exposure. Cancer risks from inhalation exposure were mainly attributed to fine particles while those from dermal exposure were mostly associated with coarse particles. Although neither ILCRderm nor ILCRinh exceeded the threshold value of 10-6 set by USEPA, the total ILCR exceeded this criterion, manifesting potential health risks from exposure to airborne particulate PACs in this region.
Chemosphere 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 C18H10, HPLC of Formula: 191-07-1.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia