Fig 1.
Distribution of subjects in the three categories of PM2.5 levels.
(A) Dot-plot of individual PM2.5 levels (μg/m3) of traffic professionals and forest institute staffers (FI). Each data point represents the average of two measurements 15 days apart. PM2.5 levels were defined in the three categories (lower: ≤22 μg/m3; middle: 23–37.5 μg/m3; upper: >37.5 μg/m3). (B) Bar graphs showing the percentage distribution of subjects in the three PM2.5 categories.* p<0.001
Table 1.
Interleukins (IL) 2, 5, 10 and interferon gamma (IFN-γ) tear levels in traffic professionals and Forest Institute workers.
Table 2.
Effects on interleukins (IL) tear levels 2, 5, 10 and interferon gamma (IFN-γ) in traffic professionals and Forest Institute workers due to a 50μg/m3 increment in PM2.5 levels.