Appendix D - Dossier (PDF) - Tera

date: 20–JUL–2005
1. General Information Substance ID: 71–43–2
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Remark: Benzene is used in closed systems.
The occupational hazard is negligible versus the proposed
TLV of 0.3 TWA, i.e. below/around 0.1 ppm (*).
(*)Peakexposures may occur during shutdowns but also here,
due to surveillance and the taken precautions (protective
equipment/cleaning procedures), the exposure will be
minimal. The proof of good working practise is the low
levels of metabolite (phenol) found in the urine.
Source: Dow Benelux N.V. AA Terneuzen
13–DEC–1996 (306)
Remark: Processes:
– Extraction by solvent (e.g. N–Methylpyrolidone) of a cut
predominantly C6 issued from steam cracking
– Hydrodealkylation (thermic catalytic cracking)
– Hydrodealkylation of benzols (issued from coal)
Source: Elf Atochem Paris La Defense 10
13–DEC–1996
Country: United Kingdom
Remark: Based on extensive studies in the USA, it appears that
facilities manufacturing chemicals, drinking water, food
beverages, and petroleum refining operations play only a
minimal role in the total exposure of the general population
to benzene.
Benzene is released into the UK environment as a result of
its production and of oil refining processes in general; its
use as a chemical intermediate (production of ethylbenzene,
cyclohexane, phenol, etc.); its presence in gasoline; and
combustion of fossil fuels.
Studies in the UK, Canada, Germany and the USA estimate the
relative contributions of thesee sources to be :
Vehicle emissions : 79–85%
Petrol distribution : 2– 6%
Chemical industry : 4–14%
Petroleum refineries : 1%
Fossil fuel burning : 2– 5%
Source: Shell UK Ltd. London
03–AUG–2000 (828) (1222)
Remark: Based on extensive studies in the USA, it appears that
facilities manufacturing chemicals, drinking water, food and
beverages, and petroleum refining operations play only a
minimal role in the total exposure of the general to
benzene.
Benzene is released into environment as :
–vehicle emissions (79–85 %)
–petrol distribution (2–6 %)
–chemical industry (4–14 %)
–fossil fuel burning (2–5 %)
Appendix D: Benzene SIDS Dossier
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