EFSA has recently (July '10) published a report on levels of PCBs (polychlorinated biphenyls non-dioxin-like PCBs) in food and in feed additives. The report is based on samples collected from 18 EU Member States between 1999 and 2008. PCBs can be released into the environment and people are primarily exposed to PCBs through food, with the exception of specific cases of accidental exposure or employment. See - EFSA report
What are PCBs and dioxins:
- PCBs (polychlorinated biphenyls) are chemical compounds containing chlorine used in the past in the synthesis of pesticides, paints, solvents, disinfectants, plasticizers such as capacitors and in electrical transformers and other industrial processes (heat transfer fluids, cutting oils. Although production of PCBs has been waived since 1980 (Directive 76/769), there remain significant quantities in electrical appliances in plastic products and materials construction (see case Brescia).
The 209 types of PCBs are classified ... dioxin-like PCBs and non-dioxin-like PCBs.
- Il termine «DIOSSINE» indica un gruppo di 75 congeneri, dei quali alcuni suscitano preoccupazioni tossicologiche. Sono sostanze inodori, resistenti alle alte temperature, poco biodegradabili, insolubili in acqua ma solubili nel grasso.
PRODUZIONE: I PCB sono prodotti intenzionalmente mentre le diossine non vengono prodotte intenzionalmente e sono contaminanti ubiquitari
I composti della famiglia delle diossine si formano durante la fase iniziale della combustione dei rifiuti, quando la combustione genera HCl gassoso, in presenza di catalizzatori, quali il rame e il ferro.
Principale fonte di diossine è la combustione di cloro "organico" (legato a composti organici) ad esempio il PVC … Remember emergency Dioxin in Mozzarella x mismanagement of waste in those places some burn PVC cables to recover copper.
The presence of chlorine and metals in the waste material poses the two main conditions for the formation of dioxins, which begins with the formation of gaseous hydrochloric acid which reacts with the oxide of a metal (iron, copper or better)
EFFECTS ON HUMAN? Dioxins are considered one of the most dangerous chemicals ever tested, even in picograms per kg liveweight.
Dioxins and PCBs are accumulated adipose tissue (bioaccumulation), dioxin has been classified as carcinogenic (Group 1) in 1997 by the IARC and PCBs as probably carcinogenic substances to humans
DIOXIN CONTAMINATION ENVIRONMENTAL :
Germany 1953 facilities of BASF,
Vietnam 1961-75 through the use of Agent Orange a defoliant;
ITALY - Seveso in 1976 following an accident to the ski Meda, ... and various other
CONTAMINATION OF FOOD:
Belgium 1999: chicken dioxin - 1999, feed contaminated with dioxin in the fat-rich as resulting from industrial oils such cases in ....
Netherlands, Belgium , Germany (2003 and 2006) for chickens and pigs.
Ireland 2008, dioxin coming from pork and beef to feed, of unknown origin. Some argue that thesis in the process of drying of industrial fuel oil feed was used
ITALY - CAMPANIA 2007 result of poor management of urban and industrial waste were found high doses of dioxins and polychlorinated biphenyls both the land and in ' man and animals.
The main source of pollution is likely due to the activities in the recovery of copper wiring that occurs through burning cables and their sheaths PVC, combustion of waste and packaging in aree urbane e dallo smaltimento irregolare di fanghi industriali sui terreni ad uso agricolo.
Vedi lo scempio in atto sul web nel Video-Denuncia http://www.laterradeifuochi.it/
PCB … BRESCIA …IL CASO ITALIANO :
Negli anni ’70 in Giappone nel ci fu un grave incidente che coinvolse 2000 persone, successivamente fu vietata (in Italia nel 1983).
Nel 1983 ha terminato l'attività l'unico stabilimento italiano che produceva PCB situato a Brescia, non a caso in quelle zone si sono verificati i maggiori casi a livello mondiale di contaminazione da PCB nelle acque e nel suolo, in termini di quantità ed estensione Source: World Health Organization - WHO ) Environmental Protection Agency - EPA )
EFSA ( European Agency for Food Safety http:// it.wikipedia.org
http://www.ceirsa.org/diossine_pcb.htm
Statement Commission Directive 2006/13/EC of 3 February 2006
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