IARC MONOGRAPHS

In 1969, the International Agency for Research on Cancer (IARC) initiated a programme on the evaluation of the carcinogenic risk of chemicals to humans involving the production of critically evaluated monographs on individual chemicals. The programme was subsequently expanded to include evaluations of carcinogenic risks associated with exposures to complex mixtures, life-style factors and biological and physical agents, as well as those in specific occupations.

The objective of the programme is to elaborate and publish in the form of monographs critical reviews of data on carcinogenicity for agents to which humans are known to be exposed and on specific exposure situations; to evaluate these data in terms of human risk with the help of international working groups of experts in chemical carcinogenesis and related fields; and to indicate where additional research efforts are needed.

The lists of IARC evaluations are regularly updated and are available on Internet: http://monographs.iarc.fr/

This project was supported by Cooperative Agreement 5 UO1 CA33193 awarded by the United States National Cancer Institute, Department of Health and Human Services. Additional support has been provided since 1992 by the United States National Institute of Environmental Health Sciences.

This publication was made possible, in part, by a Cooperative Agreement between the United States Environmental Protection Agency, Office of Research and Development (USEPA-ORD) and the International Agency for Research on Cancer (IARC) and does not necessarily express the views of USEPA-ORD.

• Published by the International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon Cedex 08, France ^©International Agency for Research on Cancer, 2006
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IARC Library Cataloguing in Publication Data

• Cobalt in Hard Metals and Cobalt Sulfate, Gallium Arsenide, Indium Phosphide and Vanadium Pentoxide/IARC Working Group on the Evaluation of Carcinogenic Risks to Humans (2006 : Lyon, France)
• (IARC monographs on the evaluation of carcinogenic risks to humans ; v. 86)
• 1. Arsenic – adverse effects 2. Carcinogens 3. Cobalt – adverse effects 4. Gallium – adverse effects 5. Indium – adverse effects 6. Metals 7. Vanadium compounds – adverse effects 8. Tungsten – adverse effects I. IARC Working Group on the Evaluation of Carcinogenic Risks to Humans II. Series
• ISBN 92 832 1286 X (NLM Classification: W1)
• ISSN 1017-1606
• PRINTED IN FRANCE

Cover: Some metallic compounds evaluated in this volume are used in integrated circuit boards which represent a new use of these metals.

Cover design by Georges Mollon, IARC