Table 2.

Maximum average irritation scores from in vivo testing of lunar dust

Time After Treatment	Rabbit Number			Average Score
	0226-M	0230-M	0275-F
Hour 1	4	4	4	4.0
Hour 24	0	0	0	0.0
Hour 48	0	0	0	0.0
Hour 72	0	0	0	0.0
Maximum Average Irritation Score:			4.0	Minimally irritating

Average irritation scores are presented for each of the three animals at each observation time. Minor conjunctival redness and swelling were noted in all animals 1 hour post-exposure. According to the grading scale in Appendix A, this corresponds to an irritation score of 4. All redness and swelling resolved within 24 hours.

M – Male; F – Female.