Source:
Arsenic is not easily dissolved in water, therefore, if it is found in a water supply, it usually comes from mining or metallurgical operations, or from runoff from agricultural areas where materials containing arsenic were used as industrial poisons.
Arsenic and phosphate easily substitute for one another chemically, therefore commercial grade phosphate can have some arsenic in it.
Arsenic is highly toxic and has been classified by the US EPA as a
carcinogen. The current MCL for arsenic is 0.05 mg/l which was derived from toxicity considerations rather than carcinogenicity.
Treatment:
When dealing with arsenic in the water, we HIGHLY recommend you consult with a professional. Not only is arsenic toxic, it can also be extremely tricky to treat effectively.
At Affordablewater.us, we have several treatment options available, including our CR26 AIO Filters, and our Katalox Light AIO Filters. We also offer the Enpress Pioneer Filter, which can remove arsenic if the correct cartridge is installed. Although reverse osmosis can be effective in reducing Arsenic (our TFC-335 RO is NSF Certified to do just that!), it is only effective when arsenic is in it's "Pentavalent" (+5 charge) electron state.
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