Seoul National University · 環境科学
Professor Youn-Hee Lim's research lab focuses on the health impacts of environmental exposures, particularly air pollution and chemical contaminants, during critical developmental periods such as early childhood and old age. The lab investigates the associations between ultrafine particles, criteria air pollutants (e.g., PM10, NO2, O3), and perfluoroalkyl substances (PFAS) with mental health outcomes, including depressive symptoms and ADHD. Using longitudinal cohort studies with biomonitoring and environmental monitoring, the lab aims to identify vulnerable populations and inform public health policies. Their work bridges environmental epidemiology, toxicology, and population health.
Figures are computed from collected data and may differ slightly.
Our study suggests that increases in PM10, NO2, and O3 may increase depressive symptoms among the elderly. Of the symptoms evaluated, ambient air pollution was most strongly associated with emotional symptoms.
There is evidence that exposure to perfluoroalkyl substances (PFAS) is associated with attention-deficit/hyperactivity disorder (ADHD) symptoms. Previous studies have focused on prenatal exposure to PFAS, and only few studies have examined the associations of early-childhood exposure, especially at low exposure levels. This study explored the association between early-childhood exposure to PFAS and ADHD symptoms later in childhood. In 521 children, we measured the serum levels of six PFAS in per
Ultrafine particles (UFP; particulate matter <0.1 μm in diameter) may be more harmful to human health than larger particles, but epidemiological evidence on their health effects is still limited. In this study, we examined the association between short-term exposure to UFP and mortality and hospital admissions in Copenhagen, Denmark. Daily concentrations of UFP (measured as particle number concentration in a size range 11-700 nm) and meteorological variables were monitored at an urban background
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