unpolluted [Adjective] + air [Noun]

Strength Strength Dispersion
A:
10
CHISQ:
1,136.18
AWT:
16,892,081
TTEST:
3.13
G2:
86.36
FAWT:
3.22
MI:
6.85
LOGLOG:
22.76
JD:
0.58
MI3:
13.49
DICE:
0.11
RANGE: