Figure 1

Experimental protocol. Control, exposed to clean air; Total-C-C, exposed to total diesel exhaust from the 7th day of gestation until 3 days after birth; Filtered-C-C, exposed to filtered exhaust from the 7th days of gestation until 3 days after birth; C-Total-C, exposed to diesel exhaust from the 4th day after birth through the 22nd day after birth; C-Filtered-C, exposed to filtered exhaust from the 4th day after birth through the 22nd day after birth; C-C-Total, exposed to diesel exhaust from day 23 after birth to day 41; C-C-Filtered, exposed to filtered exhaust from day 23 after birth to day 41.