Universität zu Köln

Gelbke, Heinz-Peter, Groeters, Sibylle and Morfeld, Peter (2014). Lowest adverse effects concentrations (LOAECs) for formaldehyde exposure. Regul. Toxicol. Pharmacol., 70 (1). S. 340 - 349. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1096-0295

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Abstract

In 2012 the Committee for Risk Assessment (RAC) of the European Chemicals Agency concluded that 2 ppm formaldehyde represent a Lowest Observed Adverse Effect Concentration (LOAEC) for polypoid adenomas, histopathological lesions and cell proliferation. An analysis of all data shows that a LOAEC of 2 ppm it is not justified for cell proliferation and polypoid adenomas. Higher values are also supported by a new statistical analysis. For histopathological lesions a NOAEC of 1 ppm may be defined but the lesions at 2 ppm cannot be regarded as pre-stages for tumour development. One major uncertainty exists: the description of polypoid adenomas and the lesions at 2 ppm often is insufficient and diagnostic uncertainties can only be resolved by a re-evaluation according to modern histomorphological standards. Although the discrepancy between our assessment and that of RAC may seem rather small we feel the LOAECs proposed by RAC must be challenged taking into consideration the broad data base for formaldehyde and the potential impact of any published RAC opinion on the present discussions about appropriate occupational and indoor exposure limits. (C) 2014 The Authors. Published by Elsevier Inc.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gelbke, Heinz-Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Groeters, Sibylle UNSPECIFIED UNSPECIFIED UNSPECIFIED Morfeld, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-427675
DOI:	10.1016/j.yrtph.2014.07.016
Journal or Publication Title:	Regul. Toxicol. Pharmacol.
Volume:	70
Number:	1
Page Range:	S. 340 - 349
Date:	2014
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1096-0295
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DOSE-DEPENDENT TRANSITIONS; INHALATION TOXICITY; CELL-PROLIFERATION; NASAL TUMORS; SPARSE DATA; F344 RATS; THRESHOLD; MUCOSA; CARCINOGENICITY; ONCOGENICITY Multiple languages Medicine, Legal; Pharmacology & Pharmacy; Toxicology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/42767