What does the Aspergillus Species Spore Count test measure?

Why is Aspergillus Species Spore Count measured?

Elevated indoor Aspergillus spore counts may correlate with respiratory symptoms in susceptible individuals and signal water intrusion or poor ventilation. For clinicians managing patients with suspected mould-related illness, documenting an environmental source strengthens the causal hypothesis and guides remediation.

Reference ranges

Standard reference

Laboratory provides comparative thresholds; no universal environmental limit exists.

Functional medicine optimal

Indoor spore counts should not substantially exceed outdoor levels; the absence of water-damaged materials is the true goal.

Units

spores/mg dust

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.