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A hierarchy for selec.ng OELs from different sources
Different countries, different OELs for same substance External factors : • sources used, • growing scien;fic knowledge, • OEL establishing methods, • evolving hazard percep;on • external influences.
What the “best” OEL in your situa;on. Is ‘your’ OEL s;ll the most ‘state of the art’? DOHBase Compare: a solu;on NL-‐Xtend EU-‐Xtend UK-‐Xtend FR-‐Xtend
Hierarchy
NL-‐legal > EU-‐BLV > EU-‐IOLV > HCN > SCOEL > DFG > ACGIH > UK-‐WEL > NIOSH> AIHA > NBOSH > VLEP
EU-‐BLV > EU-‐IOLV > SCOEL > HCN > NL-‐Legal > DFG > ACGIH > UK-‐WEL > NIOSH > AIHA > NBOSH > VLEP
UK-‐WEL > EU-‐BLV > EU-‐IOLV > HCN > SCOEL > NL-‐legal > DFG > ACGIH > NIOSH > AIHA > NBOSH > VLEP
FR-‐legal (VLEP) > EU-‐BLV > EU-‐IOLV > HCN > SCOEL > NL-‐Legal > DFG > ACGIH > UK-‐WEL > NIOSH> AIHA > NBOSH
OH2014, booth #13 Geert Wieling & Theo Scheffers, DOHSBASE v.o.f