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Table 1 Time-weighted average levels of exposure to airborne particulate matter and metals among foundry workers in an electric steel plant.

From: Airborne particulate matter and mitochondrial damage: a cross-sectional study

Pollutant (μg/m3) Mean SD Minimum   Percentile   Maximum
     25 th 50 th 75 th  
PM10 233.42 215.00 73.40 152 179.44 223.00 1220.17
PM1 8.48 6.18 1.71 3.51 9.01 11.35 30.49
Coarse 224.94 208.99 71.51 148.60 170.13 211.03 1189.68
Chromium* 0.09 0.03 0.02 0.08 0.09 0.10 0.20
Lead* 6.98 6.63 0.52 1.40 4.22 16.11 18.00
Arsenic* 0.18 0.21 0.005 0.016 0.072 0.500 0.500
Nickel* 0.43 0.26 0.10 0.24 0.34 0.62 0.90
Manganese* 38.78 98.86 0.30 1.33 9.12 30.00 684.00
  1. * Metals components were measured in PM10.