St. Helens Chronicle. The St. Helens woman has been missing for two weeks. Her boyfriend, currently in the Lane County jail for other offenses, is now considered a person of interest. Police are currently searching for St. Helens woman, Cheryl Hart, who has been missing for nearly two weeks.
First, there are typically two varieties, or species, of arsenic in water: arsenic 3 and arsenic 5.. This is significant because arsenic 3 is very difficult to remove from water and must be changed or oxidized to arsenic 5 before it can be removed.
Sources of Exposure to Arsenic in Daily Life. 1  Most drinking water contains small amounts of Arsenic. 2  Arsenic was found in items such as wine, juice, syrup, glues and pigments. 3  Arsenic is found in many foods both as organic compounds such as methyl arsines, and as inorganic arsenates and arsinates.