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ŠUMARSKI LIST 7-8/2005 str. 26 <-- 26 --> PDF |
D. Horvat, A. Kos, Ž-. Zečić, M. Šušnjar, I. Bešlić: ISTRAŽIVANJE KONCENTRACIJE DRVNE PRAŠINE . Šumarski list br. 7–8, CXXIX (2005), 393-396 malno dopuštene vrijednosti za tvrde vrste drva, ovim istraživanjem nije moguće otkloniti dilemu o štetnosti izlaganja šumskih sjekača drvnoj prašini. Zadovoljavajući bi bili jedino rezultati mjerenja koji pokazuju da lebdećih drvnih čestica u radnoj atmosferi sjekača uopće nema. Razlog tomu su tvrdnje stručnjaka medicine rada da granična vrijednosti bilo koje kancerogene i/ili mutagene tvari ne osigurava od neobolijevanja, nego samo daje smjernice za poduzimanje mjera zaštite. LITERATURA Hausen, B., 1981: Woods Injurius to Human Health: a manual. Universitätsbibliothek Hannover und Technische Informationsbibliothek, de Gruyter. Hessel, P.A., F.A. Herbert, L.S. Melenka, K. Yoshida, D. Michaelchuk, M. Nakaza, 1995: Lung health in sawmill workers exposed to pine and spruce. Chest, 108 (3), 642–646. Hinnen, U., C. Willa-Craps, P. Elsner, 1995: Allergic contact dermatitis from iroko ŠMilicia excelsaĆ and pine ŠPinusĆ wood dust. Contact Dermatitis, 33 (6), 428. Klein, R.G., P. Schmezer, F. Amelung, H.G. Schroeder, W. Woeste, J. Wolf, 2001: Cancerogenicity assays of wood dust and wood additives in rats exposed by long-term inhalation. Int Arch Occup Environ Health,74, 109–118. Kohler, B., 1995: Wood dust and cancer. National Rep – Healt, Safety and Environment, IARC, France. Kos, A., R. Beljo-Lučić, D. Horvat, K. Šega, I. B e š l i ć , 2002: Čimbenici koji utječu na zaprašenost u drvoprerađivačkim pogonima. Drvna industrija, 53 (3), 131–140. Kos, A, R. Beljo-Lučić, K. Šega, A. Rapp, 2004: Influence of woodworking machine cutting parameters on the surrounding air dustiness. Holz als Roh- und Werkstoff,62 (3), 169–176. Kos, A., 2004: Lebdeće čestice na radnom mjestu u drvnoj industriji i šumarstvu. Gospodarstvo i okoliš, 66 (12), 61–66. Daljnjim je planom pokusa predviđeno istraživanje zaprašenosti radne okoline radnika sjekača pri sječi i izradbi, u područjima Hrvatske s karakterističnim načinima gospodarenja prirodno obnavljanih šuma. Temeljni je cilj definiranje onih uvjeta rada kada i gdje je povećana izloženost drvnim ledbećim česticama iz radne atmosfere, pa se trebaju poduzeti aktivnosti smanjenja rizika od obolijevanja primjenom sredstva osobne zaštite – respiratora i uređaja za disanje. – References Kubel, H., G. Weißmann, W. Lange, 1988: Untersuchungen zur Cancerogenität von Holzstaub. Die Extraktstoffe von Buche und Fichte. Holz als Roh- und Werkstoff, 46, 215–220. R i s o vi ć, S., 2002: Studija stanja količine i kvalitete drvnog ostatka u RH. Malo, J.L., A. Cartier, A. Desjardins, R. Weyer, O. Vandenplas, R. Vande-Weyer, 1995: Occupational asthma caused by oak wood dust. Chest, 108 (3), 856–858. Prijedlog Pravilnika o maksimalno dopustivim koncentracijama štetnih tvari u atmosferi radnih prostorija i prostora MDK i o biološkim graničnim vrijednostima BGV (1993), ANT-Zagreb, ISBN 953-96075-0-7. Godišnje izvješće 2001. Hrvatske šume, Zagreb, 2002. Councile directive 1999/38/EC of 29 April 1999 amending for the second time Directive 90/394/EEC on the protection of workers from the risk related to exposure to carcinogens at work and extending it to mutagens. Official Journal L 138, 01/06/1999 P 0066-0069. Hauptverband der gewerblichen Berufsgenossenschaften, Zentralstelle für Unfallverhütung und Arbeitsmedezin, ZH 1/120.41, 1989. ISO 10882-1:2001; EN ISO 10882-1:2001, Health and safety in welding and allied processes – Sampling and gases in the operators breathing zone – Part 1: Sampling of airborne particles. SUMMARY: This paper shows the daily portion of forest cutters’ exposure to total dust or respirable fraction of oakwood during cutting and processing of fuelwood. The separators of non-respirable particle fraction (cyclons) operate in a way similar to the separation of respirable particles in the respiratory system of a healthy adult, with a medium efficiency (50 %) of 5 µm aerodynamic diameter. The mean value of mass concentration of total oak dust was 1.562 ± 0.163 mg/m3 and respirable fraction 0.618 ± 0.223 mg/m3. As the Rules, which classify oak dust as one of carcinogens, is soon to be passed in Croatia, the significance of the results lies in the fact that none of the measured values (N = 8) exceeds the Croatian limit values for mass concentration of hardwood dust recommended for the workplace. However, some dilemmas remain because of the claims of occupational medical experts that any limit value of any carcinogenic substance is not the guarantee against the illness but rather the guideline for providing an adequate level of protection. Key words: oakwood, wood dust, mass concentration, cutter, working environment, fuel wood. |