Measurement of Phthalates in Settled Dust in University Dormitories and Its Implications for Exposure Assessment
Atmosphere
; 14(4):612, 2023.
Article
in English
| ProQuest Central | ID: covidwho-2305477
ABSTRACT
Six phthalates dimethyl phthalate (DMP), diethyl phthalate (DEP), di(n-butyl) phthalate (DnBP), butyl benzyl phthalate (BBzP), di(2-ethylhexyl) phthalate (DEHP), and di(n-octyl) phthalate (DOP) in settled dust on different indoor surfaces were measured in 30 university dormitories. A Monte Carlo simulation was used to estimate college students' exposure via inhalation, non-dietary ingestion, and dermal absorption based on measured concentrations. The detection frequencies for targeted phthalates were more than 80% except for DEP (roughly 70%). DEHP was the most prevalent compound in the dust samples, followed by DnBP, DOP, and BBzP. Statistical analysis suggested that phthalate levels were higher in bedside dust than that collected from table surfaces, indicating a nonuniform distribution of dust-phase phthalates in the sleep environment. The simulation showed that the median DMP daily intake was 0.81 μg/kg/day, which was the greatest of the targeted phthalates. For the total exposures to all phthalates, the mean contribution of exposures during the daytime and sleeping time was 54% and 46%, respectively.
Meteorology; phthalates; settled dust; dormitory; sleep environment; exposure assessment; Laboratories; Indoor air quality; Volatile organic compounds--VOCs; Students; Pollutants; Dust; Sleep; Inhalation; Diet; Ingestion; Surfaces; Severe acute respiratory syndrome coronavirus 2; Aluminum; Butyl benzyl phthalate; Dermal absorption; Statistical analysis; Simulation; Exposure; Respiration; Dioctyl phthalate; Dormitories; Analytical chemistry; Monte Carlo simulation; Atmospheric particulates; Diethyl phthalate; Chemicals; Statistical methods; United States--US
Full text:
Available
Collection:
Databases of international organizations
Database:
ProQuest Central
Language:
English
Journal:
Atmosphere
Year:
2023
Document Type:
Article
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