Atmospheric processes may create perchlorate.
Renner
Rebecca
R
D001272:Atmosphere / Q000737:chemistry*; D004560:Electricity; D004785:Environmental Pollutants / Q000032:analysis; D008962:Models, Theoretical; D010472:Perchlorates / Q000737:chemistry*; D011891:Rain; D012914:Snow
D004785:Environmental Pollutants; D010472:Perchlorates; C494474:perchlorate