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Distillates (petroleum), hydrotreated light [MAK Value Documentation, 2012]


Hartwig, A; MAK Commission; et al; Arand, Michael (2016). Distillates (petroleum), hydrotreated light [MAK Value Documentation, 2012]. The MAK Collection for Occupational Health and Safety, 1(3):1791-1803.

Abstract

The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has evaluated hydrotreated light distillates (petroleum), considering all toxicity endpoints. Available publications and unpublished study reports are described in detail. The distillates are a complex hydrocarbon mixture. As there are no studies on materials with the same boiling range are available, studies on other hydrocarbon mixtures consisting mainly of aliphatic and alicyclic alkanes with a similar boiling range were used for the evaluation. In a 13‐week gavage study in rats the critical effects of an aromatics‐free hydrocarbon product are higher relative liver weight and changes in clinico‐chemical parameters observed at 500 mg/kg body weight per day. Based on the NOAEL of 100 mg/kg body weight per day that corresponds to 40 ml/m3 and taking the preferred value approach a MAK value of 20 ml/m3 is determined. As systemic effects are critical, the mixture is assigned to Peak Limitation Category II. The default excursion factor of 2 is set as no half‐life in blood is known. Pregnancy Risk Group C is assigned, as the NOAEC in a developmental toxicity study in rats is 364 ml/m3 and thus damage to the embryo or foetus is unlikely when the MAK value is observed. Hydrotreated light distillates are not genotoxic. After chronic epicutaneous application of hydrodesulfurized kerosene, malignant skin tumours arose in mice. Since the relevance of these tumours for humans in this model cannot be excluded, Carcinogen Category 3 B was assigned. Skin contact does not contribute to systemic toxicity and sensitization is not expected.

Abstract

The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has evaluated hydrotreated light distillates (petroleum), considering all toxicity endpoints. Available publications and unpublished study reports are described in detail. The distillates are a complex hydrocarbon mixture. As there are no studies on materials with the same boiling range are available, studies on other hydrocarbon mixtures consisting mainly of aliphatic and alicyclic alkanes with a similar boiling range were used for the evaluation. In a 13‐week gavage study in rats the critical effects of an aromatics‐free hydrocarbon product are higher relative liver weight and changes in clinico‐chemical parameters observed at 500 mg/kg body weight per day. Based on the NOAEL of 100 mg/kg body weight per day that corresponds to 40 ml/m3 and taking the preferred value approach a MAK value of 20 ml/m3 is determined. As systemic effects are critical, the mixture is assigned to Peak Limitation Category II. The default excursion factor of 2 is set as no half‐life in blood is known. Pregnancy Risk Group C is assigned, as the NOAEC in a developmental toxicity study in rats is 364 ml/m3 and thus damage to the embryo or foetus is unlikely when the MAK value is observed. Hydrotreated light distillates are not genotoxic. After chronic epicutaneous application of hydrodesulfurized kerosene, malignant skin tumours arose in mice. Since the relevance of these tumours for humans in this model cannot be excluded, Carcinogen Category 3 B was assigned. Skin contact does not contribute to systemic toxicity and sensitization is not expected.

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Item Type:Journal Article, not_refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Pharmacology and Toxicology
07 Faculty of Science > Institute of Pharmacology and Toxicology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:25 July 2016
Deposited On:17 Oct 2019 12:23
Last Modified:17 Oct 2019 12:55
Publisher:Wiley-VCH Verlag
ISSN:2509-2383
ISBN:9783527600410
OA Status:Closed
Publisher DOI:https://doi.org/10.1002/3527600418.mb6474247yole5216

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