From food:

Manmade chemicals can be found in

• not labeled antibiotic free products
• not labeled GMO or rBGH meat, eggs or dairy products
• conventional vs. organic products
• predators fish e.g. tuna
• food stored/reheat in plastic containers
• food wrapped, oven in aluminium foil
• plastic wraps or canned foods
• Teflon-coated nonstick pans
• shopping receipts

Tip:

• Do you know that arsenic can be found in some rice or green tea?
• Do you know that persistent environmental contaminants (heavy metals, toxins) are non biodegradable may be deposited and absorbed into the surfaces of vegetables?