Book Description

"This paper reviews the health hazards associated with the use of Carbon Black with particular emphasis on its possible carcinogenic properties. The paper is primarily limited to implications for the rubber and tyre industries. A review of current literature on Carbon Black relating to health effects is conducted. The review includes the major study by the International Agency for Research on Cancer (IARC). The National Occupational Health and Safety Council (NOHSC) and articles of particular interest. The current research based on animal studies and epidemiological data shows that evidence exists that Carbon Black is a possible human carcinogen. Other evidence is examined that brings into question some of the research that forms the basis of classifying Carbon Black as a possible carcinogen to humans. This is particularly associated with rat studies and exposure levels. Exposure standards are examined in relation to carcinogenic substances with the conclusion that the Australian exposure standard appears adequate given the current evidence provided by research. This is provisional on the assumption that the exposure standards are being met in Australian industry. Control measures have been suggested for the rubber and tyre industries. It is clear from the review that the current level of research on the hazards associated with the production and use of Carbon Black is not sufficient to make adequate assumptions about the its carcinogenic properties. Suggestions have been made on possible future research that would assist in clarifying the issue. Attention is particularly given to the relationship to exposure levels and possible compounding effects from other substances used in the rubber and tyre industries. " -- Abstract.