ten aerobically trained young adult females exercised continuously at 66 % of maximum o2 uptake for 1 h while exposed orally to filtered air and 0.15 and 0.30 parts per million ( ppm ) ozone ( o3 ) in both moderate ( 24 degrees c ) and hot ( 35 degrees c ) ambient conditions .
C0030054
o2
C0030106
o3