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Establishment of Job-Exposure Matrix of Silica dust, 1953 - 2000, Shanghai

Establishment of Job-Exposure Matrix of Silica dust, 1953 - 2000, Shanghai. Zhu Su-rong Institute of Public Health Inspection, Shanghai Municipal Health Bureau, Shanghai, 200031. This lecture w ill address the following:. Background De finition Data and Methodology Results Discussion.

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Establishment of Job-Exposure Matrix of Silica dust, 1953 - 2000, Shanghai

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  1. Establishment of Job-Exposure Matrix of Silica dust, 1953 - 2000, Shanghai Zhu Su-rong Institute of Public Health Inspection, Shanghai Municipal Health Bureau, Shanghai, 200031

  2. This lecture will address the following: Background Definition Data and Methodology Results Discussion

  3. Background

  4. Definition---“silica” Standard Sio2≥10%

  5. Data and Methodology Data: Database for Occupational Hazards in Shanghai Methodology: data cleaning: 0,(ELV，>200mg/m3 ) period: 9 time periods industry rate: 0, 1, 2, 3 occupation rate: 0, 1, 2, 3 Stat.: multi-regression job-exposure matrix (JEM) :144 cells Software: Excel2003, Access2003, STATA8.0

  6. Results—— Mean of year The average concentration of silica dust by year 1953~2000,Shanghai

  7. Results——Mean of period The average concentration of silica dust by period 1953~2000,Shanghai

  8. Results——Mean of industry and occupation The average concentration of silica dust by industrial and occupational category 1953~2000 Shanghai

  9. Results——JEM for silica The Job-Exposure Matrix for intensity of silica dust 1953~2000 in Shanghai:144 cells Period2 Period1 Period3 Mean (mg/m3) Industry JEM Rating Occupation JEM Rating

  10. Results ——JEM for silica The Job-Exposure Matrix for intensity of silica dust 1953~2000 in Shanghai:144 cells Period5 Period4 Period6 Mean (mg/m3) Industry JEM Rating Occupation JEM Rating

  11. Results ——JEM for silica The Job-Exposure Matrix for intensity of silica dust 1953~2000 in Shanghai:144 cells Period8 Period7 Period9 Mean (mg/m3) Industry JEM Rating Occupation JEM Rating

  12. Results ——compare the different results The comparison of results on the intensity of silica dust by different process 1953~2000 in Shanghai

  13. Discussion How to time the period How to use the industry and occupation rate The original and the predicable result Spot monitoring and the TWA

  14. Thanks J. Coble, JI Bu-tian OEEB，DCEG， National Cancer Institute, Bethesda, MD USA 20892 Lu Wei, Xue Shou-zheng, Jia Xiao-dong, Peng Juan-juan Shanghai Municipal Centers for Disease Control & Prevention，Shanghai, 200336 Zhu Jun Institute of Public Health Inspection, Shanghai Municipal Health Bureau, Shanghai, 200031

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