From: Exposure to environmentally relevant concentrations of ambient fine particulate matter (PM2.5) depletes the ovarian follicle reserve and causes sex-dependent cardiovascular changes in apolipoprotein E null mice
Filtered aira
PM2.5a
Cycle length (days)
4.3 ± 0.1
4.6 ± 0.1
% with abnormal cyclesb
0
35
% days with leukocytic cytologyc
39.2 ± 1.4
33.0 ± 2.3
% days with cornified cytology
28.1 ± 1.3
32.8 ± 3.4