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Table 3 Daily and average HP12 mass (mg) collected on gravimetric filters

From: A method for exposing rodents to resuspended particles using whole-body plethysmography

  Chamber 1 Chamber 2 Chamber 3 Chamber 4 Chamber 5 Chamber 6 Average RSDa
Phase 1
Day 0 0.620 0.486 1.022 0.526 0.310 0.551 0.586 40.6%
Day 1 0.867 0.656 0.848 0.617 0.575 0.447 0.668 24.3%
Day 2 0.973 0.634 0.656 0.765 0.860 0.763 0.775 16.4%
Day 3 1.497 0.686 0.919 0.856 1.158 1.285 1.067 28.2%
Average 0.989 0.616 0.861 0.691 0.726 0.761 0.774 --
RSD 37.3% 14.4% 17.9% 21.4% 50.3% 49.0% -- 35.5%
Phase 2
Day 0 2.473 1.201 1.701 1.427 1.568 1.456 1.638 27.0%
Day 1 1.706 1.671 1.601 2.111 1.986 1.175 1.708 19.2%
Day 2 0.926 1.513 1.902 1.627 1.849 --b 1.563 25.0%
Day 3 1.496 2.062 1.832 1.529 1.244 2.135 1.716 20.4%
Average 1.650 1.612 1.759 1.674 1.662 1.589 1.657 --
RSD 38.8% 22.2% 7.63% 18.1% 19.8% 31.1% -- 21.6%
Phase 3
Day 0 1.214 2.677 5.425 2.971 2.283 2.634 2.867 48.6%
Day 1 2.715 1.973 4.406 2.997 1.141 2.740 2.662 41.0%
Day 2 1.287 1.902 3.038 1.941 1.152 2.287 1.935 35.6%
Day 3 1.457 4.739 1.602 2.050 2.279 1.510 2.273 55.1%
Average 1.668 2.823 3.618 2.490 1.714 2.293 2.434 --
RSD 42.3% 46.9% 45.9% 23.0% 38.2% 24.3% -- 46.1%
Phase 4
Day 0 1.780 1.783 2.661 3.038 1.762 3.673 2.450 32.9%
  1. aRSD = relative standard deviation
  2. bParticle mass was not obtained for this day.
  3. Filters were attached in-line to the exhaust of individual whole-body plethysmograph chambers (see Figure 2). Accumulated mass was obtained for single 6-hr exposures.