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Table 3 Wood smoke exposure characteristics

From: Exposure to wood smoke increases arterial stiffness and decreases heart rate variability in humans

  Unit Average Stdev Max Min Exposure variation *
PM1 mass conc. (TEOM) μg/m3 314 38** 356*** 232*** 200-400
PM1 mass conc. (filter) μg/m3 294 36 351 246  
CO ppm 25 6 35*** 16*** 10-40
NOx ppm 0.41 0.12 0.65*** 0.26*** 0.2-0.7
EC/TC (elemental/total carbon)   0.72 0.08 0.84 0.57  
Organic fraction of total PM1 **** % 24 8.0 40 16  
Soot fraction of total PM1 ***** % 38 9.9 53 28  
PAH - PM associated (from filter) μg/m3 0.78 0.56 1.94 0.18  
PAH - semi-volatile (from PUF) μg/m3 0.28 0.12 0.53 0.14  
  1. * Typical variation interval during an exposure for the continuous measurements.
  2. ** Standard deviation of the average TEOM data from each exposure.
  3. *** Max and min of the average from each exposure.
  4. **** Estimated based on the OC analysis and TEOM (assuming OC*1.8 in total organic PM weight).
  5. ***** Estimated based on the EC analysis and TEOM (assuming EC*1.1 in total soot PM weight).