Has a slightly higher boiling point and lower volatility than DEHP . Ethylene dichloride, or more accurate 1,2 dichloroethane, see DCE . A painfull desease which gives chronic inflammations of mucous membrane, growing outside of the uterus of female animals and women. The remainders are benzene, butadiene, light fractions and PAH's . Benzene and butadiene are used for other purposes, the light fractions are mixed with petrol and the PAH's are incinerated.
Ethylene has many applications, mainly to make different plastics.
In that way it is more or less possible to trace back the origin of a dioxin contamination. Hexachlorobenzene, mainly a byproduct from combustion when traces of chlorine are present like in the use of fuel at sealevel. It resists biodegradation and can accumulate in the food chain. Because of the presence of a hydrogen atom, the HCFC's are much faster degraded than CFC's. That means that a much smaller part is reaching the ozone layer.