The FDA has found inorganic arsenic in juice that was made at Valley Processing Incorporated in Sunnyside. The juice that was contaminated was never sold for consumption and thrown away according to news reports. The company was also cited for unsafe storage of apples outside in open containers which can cause them to mold.

In Wikipedia, arsenic is defined as:

Elemental arsenic and arsenic compounds are classified as "toxic" and "dangerous for the environment" in the European Union under directive 67/548/EEC. The International Agency for Research on Cancer (IARC) recognizes arsenic and arsenic compounds as group 1 carcinogens, and the EU lists arsenic trioxide, arsenic pentoxide, and arsenatesalts as category 1 carcinogens.

Arsenic is known to cause arsenicosis when present in drinking water, "the most common species being arsenate [HAsO2−4; As(V)] and arsenite [H3AsO3; As(III)]".