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Could Dioxin be the Most Toxic Substance

The history of manufacture and application of dioxins is plagued with industrial accidents and environmental problems (Nitro, USA 1949 Ludwigshafen, Germany 1953 Duphar, Netherlands 1963 Coalite Chenricals, UK 1968 Seveso, Italy 1976 Love Canal, USA 1978 Times Beach, USA 1983 Belgium 1999 Europe 2007, 2011, 2.21). The site of the first industrial accident in 1949 was a chemi- [Pg.249]

The accident of Seveso is much better known. At half past seven in the morning of July 10, 1976 a reactor rrsed for manufacturing chlorophenol pesticides in a chemical plant exploded in the Itahan town of Seveso, aboirt 13 km from Milan. About 16 kg of dioxin was released into the environment, 3 kg of which was dispersed [Pg.249]

8- tetraehloiDdibenzo[b,e] [l,4]dioxin (TCDD), the most common compound of the family of dioxins (the dioxin motif is highlighted in bold and red). [Pg.250]

8- Pentachlorodibenzo[b, djfuran (PCDF) is the most common substance in the similar group of chlorinated dibenzofurans. (Authors own work) [Pg.250]

The material called dioxin is not a single substance, it is a whole family of related compounds. Dioxin often means the most common chemical in this group, which is 2,3,7,8-tetrachlorodibenzo[b,e][l,4]dioxin (TCDD) (Fig. 4.11). There are 75 possible varieties of dibenzodioxins that contain 1-8 chlorine atoms. Seven of these compounds are toxic, TCDD is the most common of these. To make matters more complicated, dibenzo[6, f furans have similar stmctures and properties. There are 135 such derivatives with 1-8 chlorine atoms, 10 of which are toxic. As a shortcut. [Pg.250]


See other pages where Could Dioxin be the Most Toxic Substance is mentioned: [Pg.248]    [Pg.249]    [Pg.251]    [Pg.352]    [Pg.248]    [Pg.249]    [Pg.251]    [Pg.352]    [Pg.353]    [Pg.142]    [Pg.5002]    [Pg.1704]   


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