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Particle pollution represents a main component of wildfire smoke and the
principal public health threat. Fine particles (also known as PM2.5) are
particles generally 2.5 µm in diameter or smaller and represent a main
pollutant emitted from wildfire smoke. Fine particles from wildfire smoke are
of greatest health concern.

This pillar is described and represented by two metrics: potential total smoke
production index, and potential avoided smoke production index (indicated by
asterisks). The condition of particulate matter element is represented by the
average of the condition scores for the two metrics.

* Metric Name: Element Representation: Particulate Matter   

* Unit Of Measure: Condition score, +1 to -1  

* Translation: None