How much Sweet Orange Oil fungicide is on an orange?

The Environmental Protection Agency (EPA) has set exposure levels for Sweet Orange Oil. The adult levels are between 1750 and 3500 units per day for a 154-pound male.
The limits for 44-pound children are 50 units per day for a chronic (meaning continued) exposure, and 333 for a child in an acute intake (meaning at one time). The residue of this toxic chemical on oranges has been tested at between 8 ug in 3.5 ounces of orange to 79 ug for domestic oranges.
For imported oranges, between 15 and 74 ug was found. Organic domestic oranges showed NO levels for this chemical and imported organic oranges were not tested.