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Table 5 Mean daily concentration of particulate matters exposure in time intervals in studied subjects

From: Effect of food intake and ambient air pollution exposure on ankylosing spondylitis disease activity

Day of sampling Case Control
PM 2.5 μg/m3- mean (SD) Pm10 μg/m3-mean (SD) PM2.5 μg/m3-mean (SD) Pm10 μg/m3-mean (SD)
  28.2 (13.2) 85.4 (49.2) 25.9 (20.5) 60.0 (31.4)
1 month before sampling 28.7 (10.5) 76.6 (39.3) 30.0 (13.4) 73.33 (27.8)
3 months before sampling 26.4 (6.8) 76.7 (36.6) 27.6 (9.2) 67.44 (11.38)
  1. PM Particulate Matter