2.50
Hdl Handle:
http://hdl.handle.net/10029/257026
Title:
Exploratory report 1,3-butadiene
Authors:
Slooff W; Bont PFH; Hesse JM; Thomas R
Other Titles:
[Scopingsdocument 1,3-butadieene.]
Abstract:
Abstract niet beschikbaar

1,3-Butadiene is mainly emitted to the air. The most important sources in the outdoor air is traffic. Indoors cigarette smoking is the most important source. Because of the genotoxic and carcinogenic properties of 1,3-butadiene and its metabolites a non-threshold extrapolation method was used for establishing toxicological limit values. It was indicatively calculated that an ambient concentration of 0.03 to 0.15 mug.m-3 corresponds to a lifetime cancer risk of 1 x 10-6 (negligible risk level, the maximum permissible is a factor 100 higher). The all-year average 1,3-butadiene concentration in the Netherlands was estimated at 0.4 mug.m-3. Much higher levels have been measured in the seventies in urban areas related to traffic activities (<2.2 to 158 mug.m-3). According the model calculations the all-year average contribution to the 1,3-butadiene concentration in busy streets by traffic has been estimated to be 2 mug.m-3. Indoor air 1,3-butadiene concentrations may reach levels of approximately 3 mug.m-3 and up. On the basis of very limited exposure data, the estimated 1,3-butadiene concentration in ambient air seems to be below the "maximum permissible" risk level. Therefore, the cancer risk due to 1,3-butadiene in ambient air is within acceptable limits. However, in busy streets in inner cities the exposure concentrations are estimated to be close to the 'maximum permissible" risk level. On the other hand the 1,3-butadiene concentrations resulting from traffic emissions have dropped in the last decades and are expected to decrease further in the next few years since over 95% of the gasoline powered new cars sold in the Netherlands are equipped with a catalytic converter. No data are available on the occurrence of 1,3-butadiene in indoor air in the Netherlands. Literature data indicate that in smoke-filled rooms the concentrations are in the range of "maximum permissible" risk level. It is advocated to limit the gap-filling to a survey into the concentration of 1,3-butadiene in indoor and outdoor air in inner city streets.
Affiliation:
RPC Delft; ECO; ACT; LAE
Issue Date:
28-Feb-1994
URI:
http://hdl.handle.net/10029/257026
Additional Links:
http://www.rivm.nl/bibliotheek/rapporten/710401033.html
Type:
Onderzoeksrapport
Language:
en
Sponsors:
DGM/SVS
Appears in Collections:
RIVM official reports

Full metadata record

DC FieldValue Language
dc.contributor.authorSlooff W-
dc.contributor.authorBont PFH-
dc.contributor.authorHesse JM-
dc.contributor.authorThomas R-
dc.date.accessioned2012-12-12T14:58:37Z-
dc.date.available2012-12-12T14:58:37Z-
dc.date.issued1994-02-28-
dc.identifier710401033-
dc.identifier.urihttp://hdl.handle.net/10029/257026-
dc.description.abstractAbstract niet beschikbaarnl
dc.description.abstract1,3-Butadiene is mainly emitted to the air. The most important sources in the outdoor air is traffic. Indoors cigarette smoking is the most important source. Because of the genotoxic and carcinogenic properties of 1,3-butadiene and its metabolites a non-threshold extrapolation method was used for establishing toxicological limit values. It was indicatively calculated that an ambient concentration of 0.03 to 0.15 mug.m-3 corresponds to a lifetime cancer risk of 1 x 10-6 (negligible risk level, the maximum permissible is a factor 100 higher). The all-year average 1,3-butadiene concentration in the Netherlands was estimated at 0.4 mug.m-3. Much higher levels have been measured in the seventies in urban areas related to traffic activities (<2.2 to 158 mug.m-3). According the model calculations the all-year average contribution to the 1,3-butadiene concentration in busy streets by traffic has been estimated to be 2 mug.m-3. Indoor air 1,3-butadiene concentrations may reach levels of approximately 3 mug.m-3 and up. On the basis of very limited exposure data, the estimated 1,3-butadiene concentration in ambient air seems to be below the "maximum permissible" risk level. Therefore, the cancer risk due to 1,3-butadiene in ambient air is within acceptable limits. However, in busy streets in inner cities the exposure concentrations are estimated to be close to the 'maximum permissible" risk level. On the other hand the 1,3-butadiene concentrations resulting from traffic emissions have dropped in the last decades and are expected to decrease further in the next few years since over 95% of the gasoline powered new cars sold in the Netherlands are equipped with a catalytic converter. No data are available on the occurrence of 1,3-butadiene in indoor air in the Netherlands. Literature data indicate that in smoke-filled rooms the concentrations are in the range of "maximum permissible" risk level. It is advocated to limit the gap-filling to a survey into the concentration of 1,3-butadiene in indoor and outdoor air in inner city streets.en
dc.description.sponsorshipDGM/SVS-
dc.format.extent53 p-
dc.language.isoen-
dc.relation.ispartofRIVM Rapport 710401033-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/710401033.html-
dc.subject04nl
dc.subjectstofnl
dc.subjectblootstellingnl
dc.subjecteffectennl
dc.subjectmacnl
dc.subjectnormnl
dc.subjectemissienl
dc.subjectverkeernl
dc.subjectmilieunl
dc.subjectrisiconl
dc.subjectanalysenl
dc.subjectreviewnl
dc.subjectbinnenmilieunl
dc.subjectbutadieennl
dc.subjectexposureen
dc.subjecteffectsen
dc.subjectmacen
dc.subjectstandardsen
dc.subjectemissionen
dc.subjecttrafficen
dc.subjectenvironmenten
dc.subjectrisk analysisen
dc.subjectreviewen
dc.subjectindoor environmenten
dc.subject1en
dc.subject3-butadieneen
dc.subject1en
dc.subject3-butadieeneen
dc.titleExploratory report 1,3-butadieneen
dc.title.alternative[Scopingsdocument 1,3-butadieene.]nl
dc.typeOnderzoeksrapport-
dc.contributor.departmentRPC Delft-
dc.contributor.departmentECO-
dc.contributor.departmentACT-
dc.contributor.departmentLAE-
dc.date.updated2012-12-12T14:58:38Z-
All Items in WARP are protected by copyright, with all rights reserved, unless otherwise indicated.