6Linn WS, Szlaeheie Y, Gong H, et al. Air pollution and daily hospital admissions in metropolitan Los Angeles. Environ Health Perspect, 2000,108 : 427-434.
7Pope CA 3rd, Burnett RT, Thun MJ, et al. Lung cancer, cardiopulmonary mortality, and longterm exposure to fine particulate air pollution. JAMA, 2002,287(9) : 1132-1141.
8Carlisle A J, Sharp NCC. Exercise and outdoor ambient air pollution. Br J Sports Med, 2001, 35:214-222.
9Daigle CC, Chalupa DC, Gibb FR, et al. Ultrafine particle deposition in humans during rest and exercise. Inhal Toxicol, 2003,15:539-552.
