中华劳动卫生职业病杂志
中華勞動衛生職業病雜誌
중화노동위생직업병잡지
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
2011年
10期
766-769
,共4页
荀厚勤%徐尧猛%吉晓明%侯志国%王莎莎%虞国华%叶海滨%陈恩明%王美林%倪春辉
荀厚勤%徐堯猛%吉曉明%侯誌國%王莎莎%虞國華%葉海濱%陳恩明%王美林%倪春輝
순후근%서요맹%길효명%후지국%왕사사%우국화%협해빈%진은명%왕미림%예춘휘
采矿%粉尘%空气污染物,职业性
採礦%粉塵%空氣汙染物,職業性
채광%분진%공기오염물,직업성
Mining%Dust%Air pollutants%occupational
目的 分析1991年至2010年某铁矿井下作业环境粉尘污染状况,为合理可行的防护措施提供理论依据.方法 收集某铁矿井下1991至2010年粉尘监测资料,包括总粉尘浓度和游离二氧化硅含量.分析粉尘污染的变化趋势,依据CBZ 2-2002《工作场所有害因素职业接触限值》判定是否超标,计算超标率及超标倍数.结果 1991至2010年粉尘污染水平总体上呈下降趋势,尤其是最大值和平均水平下降尤为明显；1993年总粉尘浓度超标率最高,达43.16％,2009年和2010年污染水平比较低,但超标率仍然在30％以上.从不同作业面来看,采矿作业面和支护作业面粉尘污染最严重,超标率分别为51.61％和51.48％,最高超标倍数分别是64.6倍和16.4倍；其次为基建作业面,超标率为40.23％,最高超标倍数为24.6倍.结论 1991至2010年铁矿井下粉尘污染水平呈下降趋势,总粉尘超标率仍然比较高,应加大粉尘控制措施,尤其是采矿作业面和支护作业面.
目的 分析1991年至2010年某鐵礦井下作業環境粉塵汙染狀況,為閤理可行的防護措施提供理論依據.方法 收集某鐵礦井下1991至2010年粉塵鑑測資料,包括總粉塵濃度和遊離二氧化硅含量.分析粉塵汙染的變化趨勢,依據CBZ 2-2002《工作場所有害因素職業接觸限值》判定是否超標,計算超標率及超標倍數.結果 1991至2010年粉塵汙染水平總體上呈下降趨勢,尤其是最大值和平均水平下降尤為明顯；1993年總粉塵濃度超標率最高,達43.16％,2009年和2010年汙染水平比較低,但超標率仍然在30％以上.從不同作業麵來看,採礦作業麵和支護作業麵粉塵汙染最嚴重,超標率分彆為51.61％和51.48％,最高超標倍數分彆是64.6倍和16.4倍；其次為基建作業麵,超標率為40.23％,最高超標倍數為24.6倍.結論 1991至2010年鐵礦井下粉塵汙染水平呈下降趨勢,總粉塵超標率仍然比較高,應加大粉塵控製措施,尤其是採礦作業麵和支護作業麵.
목적 분석1991년지2010년모철광정하작업배경분진오염상황,위합리가행적방호조시제공이론의거.방법 수집모철광정하1991지2010년분진감측자료,포괄총분진농도화유리이양화규함량.분석분진오염적변화추세,의거CBZ 2-2002《공작장소유해인소직업접촉한치》판정시부초표,계산초표솔급초표배수.결과 1991지2010년분진오염수평총체상정하강추세,우기시최대치화평균수평하강우위명현；1993년총분진농도초표솔최고,체43.16％,2009년화2010년오염수평비교저,단초표솔잉연재30％이상.종불동작업면래간,채광작업면화지호작업면분진오염최엄중,초표솔분별위51.61％화51.48％,최고초표배수분별시64.6배화16.4배；기차위기건작업면,초표솔위40.23％,최고초표배수위24.6배.결론 1991지2010년철광정하분진오염수평정하강추세,총분진초표솔잉연비교고,응가대분진공제조시,우기시채광작업면화지호작업면.
Objective The main purpose of this work was to give the evidence of reasonable and feasible dust control measures which will be taken in the future by analyzing the trend of dust concentration from 1991 to 2010 and identifying working faces with the severe dust contamination in one underground iron mine.Methods The data was from routine monitoring between the years 1991 and 2010,which enclosed the total dust concentrations and silica contents.China National Standard of Occupational exposure limits for hazardous agents in the workplace used to judge whether the dust concentration exceeded the National Standard.Results The general trend of total dust concentration from 1991 to 2010 was decreased,especially maximum and average levels.The highest exceeding rate was 43.16％ in 1993 and the best years were 2009 and 2010,but the exceeding rates were still over 30％.The dust exposure levels varied with different work faces.The mining and supporting were the most severe dust pollution faces which the highest ultra exceeding rates were 51.61％ and 51.48％ and the maximum exceeding times were 64.6 and 16.4 respectively.The next was constructing face with 40.23％ exceeding rate and 24.6 times more than standard.Conclusion The trend of total dust concentration from 1991 to 2010 was decreased,but the dust exceeding rate was still high.The strong measures should be taken to control the dust pollution in this iron mine,especially mining and supporting faces.
