Manganese, Cobalt, Strontium. Levels?

Yearly blood investigations was done there in toxic elements panel manganese  Cobalt strontium has shown higher values in females but in the male report it as shown within the normal range Mother aunt //60+ sister //42 Myself//36 For example in my mothers report manganese is shown 150 whereas cut off range is 20 similarly aunts sisters also shown higher ranges of manganese cobalts strontium... What could be the possible reason for the elevated levels? Few people say drinking water but in our home we use RO purifier and if this is the possible cause then in male profile also it should have reflected the elevated levels but that's not the case Can gastric tablet could be the cause?//mother aunt sister Can JP tone syrup could be the cause?//mother Can methotrexate tablet could be the cause?// Mother Rhu Arthritis I am literally confused what to do next and what could be the main reason for increased  levels? Please somebody properly guide me