Indoor Dust Mite Fecal Pellets
Transmitted Off Crossed Polarized Light Illumination

Definition/Function:


Significance in the Environment:


Characteristic Features:
Dust mite and many other mite fecal pellets are rounded elipsoids containing birefringent nitrogen containing chemical crystals (bright patches in the pellets). These may be found in tapelifts or surface dust samples as well as in air samples, though much more rarely. The main nitrogen containing compound is guanine.

Associated Particles:


References: