Which of the following is carcinogen when present in water?
Boron
Nitrate
Cadmium
Chromium (both trivalent and hexavalent)
Lead
Arsenic
lead (inorganic), chromium (hexavalent) and cadmium are highly carcinogenic.
Lead, Arsenic, Cadmium and chromium, when exceeding permissible limits are always dangerous.
Search the IARC and WHO websites for this information.
Lead, Arsenic, Cadmium and chromium, Mercury, pesticides etc.
Regards
Krishna
Many Thanks to all of you
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