臺灣地區石綿工廠空氣中石綿濃度測定

Airborne Asbestos Concentration in Asbestos-Related Factories in Taiwan

張火炎(HY Chang) ； 王榮德(JD Wang) ； 張錦輝(JW Chang) ； 陳誠仁(CR Chen) ； 吳敏鑑(MC Wu)

《中華民國公共衛生學會雜誌》 8卷1期 (1988/03) Pp. 28-35

https://doi.org/10.6288/JNPHARC1988-08-01-03

摘要

本研究目的是對本省石綿工廠空氣中石綿濃度作一測量。以全省33家石綿工廠爲對象，根據美國職業安全衛生研究院所建議的最危險工作群，以定點採樣爲主，個人採隊爲輔，作空氣中石綿濃度採樣，而以位相差顯微鏡作鏡檢分析，共得有效樣才67件。根據各採樣點單一樣本（定點採樣時間30~50分鐘）之偵測，結果發現本省石綿相關工廠中，加料口所測空氣中石綿濃度以石綿紡織業最高：6.25 fiber/c.c，依次是石綿耐磨業：3.57±1.91 fiber/c.c.（算術平均數±標率差），石綿絕緣業：2.23±0.40 fiber/c.c.。石綿水泥業，最低：2.13±2.69 fiber/c.c.。如果區分乾、溼作業，發現加料口空氣中石綿濃度，溼式作業爲2.13±2.69 fiber/c.c.，乾式作業爲3.56±1.91 fiber/c.c.。作業現場空氣中石綿濃度，溼式作業爲2.02±2.60 fiber/c.c.，乾式作業爲2.89±1.60 fiber/c.c.。以局部排氣之有無作比較，溼式作業加料口空氣中石綿濃度有加裝局部排氣者：1.59±1.23 fiber/c.c.，無局部排氣者：2.89±3.82 fiber/c.c.。此次研究發現與作業現場隔絕之辦公室空氣中石綿測試中，亦發現有石綿纖維的存在：0.19 fiber/c.c.，根據推斷可能爲作業現場工人攜入所致。

並列摘要

The objective of this study was to determine the concentration of airborne asbestos inside asbestos-related factories in Taiwan. Besides performing personal sampling on the maximum risk groups, we also collected area samples. On the basis of the single simple sample (area sampling duration: 30-50 mm, the results were as follows: Among the four kinds of asbestos-related factories, the concentration of airborne asbestos in textile was the highest, 6.25 fibers/c.c.; followed by the brake-lining factories, which was 3.57 ± 1.91 fibers/c.c. And that of the insulating factories was 2.23 ± 0.4 fibers/c.c. and that of the cement factories was 2.13 ± 2.69 fibers/c.c. The air concentration of asbestes was higher in a factory with wet process than that in a dry process; and the lower under veiitilation control than without control at the cement manufacturing process. Asbestos concentration in a randomly selected office, which was just next to the cement manufacturing area, was found to be 0.19 fiber/c.c.

並列關鍵字

asbestos ； air concentration