Human and Dog Dander
The dog dander is easily seen in this tapelift from a home.
The dog dander particles are the elongated bright
particles. The human dander are the faint, isotropic, more equant, colorless
particles in the background.
Transmitted Oblique Off Crossed Polarized Light Illumination
Definition/Function:
Significance in the Environment:
Characteristic Features:
Human dander varies from isotropic to particles with stress birefringence. The stress
birefringence of human skin flakes tends to be low. The
refractive index of human skin flakes tends to be around 1.550 but will vary with stress
and oil content.
Associated Particles:
References:
