Comments on "Comparative hazards of chrysotile asbestos and its substitutes: a European perspective"

Our plain-English summary of Comments on "Comparative hazards of chrysotile asbestos and its substitutes: a European perspective", by H. Savastano (Environmental Health Perspectives, 1999).

The study

• Author: H. Savastano
• Journal: Environmental Health Perspectives
• Published: 1999;107(12):A596-7
• Type of article: Letter
• Read it: PubMed · Publisher · Free full text

In plain English

This item was a short letter to the editor, not a research study, and it reported no health data on asbestos. The author, from the University of Sao Paulo, Brazil, wrote that the abstract of a paper by Harrison and colleagues comparing the hazards of chrysotile asbestos and its substitutes supported the author's own work. The letter did not describe that paper's findings. The author described a cooperative program with Forestry and Forest Products-CSIRO in Australia that was developing methods to replace asbestos in fiber-cement products. It used only alternative raw materials: ground iron blast-furnace slag as the base, with cellulose fibers from sisal and banana crop wastes or eucalyptus pulp by-products. The fibers were pulped by chemical and/or thermomechanical processes, and the composites were made by a slurry vacuum de-watering method. According to the author, initial tests showed physical and mechanical performance acceptable for housing requirements. Long-term aging tests to evaluate durability were still in progress in Melbourne, Australia, and Sao Paulo, Brazil, so no durability results were reported.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: Letter to the editor (correspondence) describing ongoing materials-development work. It is not an epidemiologic or experimental health study.
• Who was studied: No human or animal subjects. The work concerned fiber-cement building materials developed in a cooperative program between the University of Sao Paulo and Forestry and Forest Products-CSIRO in Australia.
• Exposure: No asbestos exposure was studied. The letter described asbestos-free composites made with a ground iron blast-furnace slag matrix and cellulose fibers from sisal and banana crop wastes or eucalyptus pulp by-products.
• Main results:
  • Initial tests of the asbestos-free composites showed physical and mechanical performance that the author described as acceptable for housing requirements. No numbers were given.
  • Long-term aging tests to evaluate durability were still in progress in Melbourne, Australia, and Sao Paulo, Brazil. No durability results were reported.
• The authors' conclusion: The author stated that the Harrison et al. paper on the comparative hazards of chrysotile asbestos and its substitutes supported the author's current work.

Topics

The National Library of Medicine indexes this study under subjects our site covers: Chrysotile.

Medical terms in this study, explained in our Lexicon: Chrysotile.

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