title: [Evaluation of working environment in the textile industry. IV. Dust concentration in the air of the flax spinning and weaving plants].
abstract: Evaluation of dust concentration in the air of spinning and weaving rooms was made by gravimetric sampling of dust in 3 flax plants, where short flax fibres (flax--tow) and long flax fibres were manufactured. Besides, the dispersion of dusts and concentration of free silica were determined. The highest concentration of dust (10 mg/m3) was found in hackling room, mixing mill, and the one where spreading machines are operated, while in the carding room it was - 7.0 mg/m3. In other shops the concentration was - 5.5 mg/m3. The dust in the air of spinning rooms contained 2.3% of free silica and 53% of its particles were smaller than 5 micrometers. In the weaving rooms it contained 1.6% of free silica and 57% particles were smaller than 5 micrometers. The geometric mean of dust concentration higher than MAC for vegetable dusts (4 mg/m3) was found in hackling mill, mixing mill and the one where spreading machines are operated.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D004391:Dust; D006801:Humans; D008452:Maximum Allowable Concentration; D010316:Particle Size; D011044:Poland; D012822:Silicon Dioxide / Q000032:analysis; D013783:Textile Industry
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D004391:Dust; D012822:Silicon Dioxide
vernacular_title: Ocena środowiska pracy w zakładach lniarskich. IV. Stçzenie pyłu na stanowiskach pracy w przedzalniach i tkalniach lnu.