A borderline significant decreasing trend was observed for 2-Hydroxyfluorene, ΣPAH and ΣPAH n .
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Effects of Polycyclic Aromatic Hydrocarbons on Lung Function in Children with Asthma: A Mediation Analysis.
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A monthly decreasing trend was also observed for humidity and wind speed; conversely, an increasing trend was observed for temperature ( Figure S1 ). 3.2.
Environmental Exposure Profile Levels PAHs exposure and PM 10 measured by pollutant monitoring stations of Palermo city showed a decreasing trend over the study period ( Table S1 and Figure S1 ).