Objectives: The International Agency for Research on Cancer (IARC) and Japan Society for Occupational Health (JSOH) classified wood dust as a human carcinogen. Former studies have suggested that sanding with a portable sander is one of the processes that are liable to cause highest exposure to wood dust. However, the wood dust by sanding operation has not been investigated sufficiently. In this study, the generation rate and the particle size distribution of the wood dust produced by handheld sanding operation were observed by laboratory experiments.
Methods: Beech and cypress were taken as typical hard and soft wood specimen respectively, and sanded with a portable sander. Three grades of sand paper (coarse, medium, fine) were attached to the sander in turn to be tested. The quantity of the wood dust produced by the sander was measured by weighing the specimen before and after the sanding and then the generation rate of the dust was calculated.
Results: Soft wood generated more dust than hard wood due to the difference in abrasion durability. A coarse sand paper produced more dust than a fine sand paper. The particles of less than 1 μm diameter were scarcely observed in the wood dust. When the specimens were sanded with a fine sand paper, the mass median aerodynamic diameters of beech dust and cypress dust were 9.0 μm and 9.8 μm, respectively.
Conclusions: Respirable wood dust is able to be controlled by general ventilation with more than 0.7-4.2 m/min ventilation rate.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5373914 | PMC |
| http://dx.doi.org/10.1539/joh.16-0136-BR | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Developing novel materials is an essential requirement in the engineering field. This study investigates the effects of incorporating wood dust particles on the mechanical and erosive wear properties of Luffa acutangula fiber (LAF)-reinforced phenol-formaldehyde composites, fabricated using the hand layup method with a constant 20% fiber content and varying wood dust particle contents of 0%, 10%, 20%, and 30%. Using the Taguchi method, the study identifies the optimal combination for minimizing erosive wear - 20% wood dust content, 45 m/s impact velocity, 60° impingement angle, 600 μm erodent size, and 60 mm standoff distance-achieving a minimum erosion rate of 189.
View Article and Find Full Text PDFOccupational exposure to carcinogenic wood dust in two Italian biomass power plants.
Arh Hig Rada Toksikol
December 2024
Pio XI Hospital, Clinical Unit of Occupational Health, Desio, Italy.
In this study we monitored exposure to airborne dust in workers performing various tasks at two biomass-fuelled thermal power plants (27 and 46 MW) over six years. The plants are mainly fuelled by forest wood chips and, to a lesser extent, by agro-food products, with annual consumption of about 300 and 450 kt. We focused on inhalable wood dust because of its potential carcinogenicity to humans.
View Article and Find Full Text PDFSawdust-based compost for production of Pycnoporus sanguineus basidiocarps.
Arch Microbiol
December 2024
Department of Agronomy, Universidade Estadual Do Oeste Do Paraná, Marechal Cândido Rondon, PR, Brazil.
This work aimed to get compost with cellulose-rich residues for Pycnoporus sanguineus basidiocarp production. Two isolates of P. sanguineus (Ps08 and Ps14) were grown in polypropylene bags containing sawdust of Eucalyptus sp.
View Article and Find Full Text PDFOccupational anaphylaxis: A Position Paper of the German Society of Allergology and Clinical Immunology (DGAKI).
Allergol Select
November 2024
Department of Dermatology and Allergy Biederstein, School of Medicine and Health, Technical University of Munich TUM).
Background: Anaphylaxis is a systemic allergic reaction that is potentially life-threatening. Occupational anaphylaxis is an anaphylaxis that occurs in an occupational context. In this position paper, we propose diagnostic criteria for occupational anaphylaxis and provide an overview of the current state of knowledge in terms of prevalence, triggers, prevention, and management.
View Article and Find Full Text PDFOccupational exposure to inhalable agents is associated with reduced work ability: A prospective cohort study in Norway.
J Occup Environ Med
November 2024
Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
Article Synopsis
- - This study evaluated how inhalable occupational exposure affected work ability scores (WAS) in a group of workers over a 5-year period, using self-reported data and a job-exposure matrix from 2013.
- - Results showed that exposure to various substances like vapors, gas, and dust was linked to lower WAS in 2018, with specific irritants and agricultural agents identified as harmful.
- - The findings suggest that reducing exposure to these inhalable substances is important for maintaining or improving work ability among workers.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!