Estimation of students’ exposure to metal concentrations from river-dust episodes during 1994–2012
2017
Yang, Hao-Jan | Chen, Szu-Chieh | Hu, Chiung-Wen | Chiang, Yi-Chen | Tsai, Ching-Tsan | Lin, Pin-Yu | Lai, Dian-Jheng | Kuo, Chung-Yih
Two elementary schools (Shiuguang and Fongrong) from Yulin County in Taiwan, near a main area of potential exposure to Aeolian river-dust, were selected to collect outdoor and indoor PM₁₀ aerosols and to measure five metals in PM₁₀ (As, Ni, Cr, Cd, and Mn). Significant relationships (p < 0.01) were found between outdoor PM₁₀ concentrations at Lunbei’s air quality monitoring station and the two elementary schools. The outdoor PM₁₀ concentrations at the monitoring station and the schools’ indoor PM₁₀ concentrations also showed significant correlations. This study also established a relationship between the outdoor and indoor concentrations of PM₁₀ and metals in the schools. Estimations were made regarding students’ 8 h of exposure to metal concentrations from river-dust episodes during 1994–2012, based on correlation equations that were shown to be statistically significant.
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