in responce to egbert
Dioxins
Dioxins are a group of chemicals commonly formed as by-products of industrial combustion and chemical processes, such as manufacturing of chemicals, pesticides, steel and paints, pulp and paper bleaching, exhaust emissions and incineration
Main source of dioxin contamination of food for human consumption is contaminated animal feed
Dioxins are absorbed by fatty tissue of cattle, poultry, pork and seafood. Foods high in animal fat, such as milk, meat, fish and eggs (and foods produced with them) are the main source of dioxins although all foods contains some
Dioxins are found throughout the industrialised world, in air, water and soil, as well as in food
Dioxins can cause problems for people if they are absorbed at high levels for long periods
They have been shown in lab tests to cause a wide range of effects in certain animals, such as cancer and damage to the immune and reproductive systems, including low sperm count and learning difficulties