Elemental and organic carbon exposure in highway tollbooths: A study of Taiwanese toll station workers

Tung Sheng Shih, Ching Huang Lai, Hsueh Fen Hung, Shiou Ying Ku, Perng Jy Tsai, Tsan Yang, Saou Hsing Liou, Ching Hui Loh, Jouni J.K. Jaakkola