Assertion: arsenic | /r/AtLocation | food
Facets:
value: naturally
type: MANNER
value: normally
type: DEGREE
Source sentences:
text: Arsenic is also found in food, water, soil, and air.
text: It is found in water, air, food, and soil.
text: Since arsenic is found in the soil, water, food, and air, children may take in arsenic in the air they breathe, the water they drink, and the food they eat.
text: Everyone has some daily exposure to arsenic because it is a naturally-occurring chemical element that is normally found in water, soil, indoor house dust, air, and food.
text: Even though arsenic can be found in water, air, and food, the main problem with arsenic contamination comes from its presence in aquifers.
text: Arsenic is found naturally in the soil, food and water, and is still used to treat some medical conditions
text: Arsenic is also found in food, water, soil, and air.  
text: The FDA, however, states that arsenic is a naturally occurring substance and is found in water, air, food, and soil.