What constitutes the bulk of household dust generated internally?
Answer
Shed human skin cells and textile fibers.
The majority of dust found within a household originates from sources within the dwelling itself rather than external contamination. Key internal components include human skin cells, which are shed constantly by every individual, and textile fibers originating from clothing, upholstery, and carpeting materials. While external elements like soil and vehicle exhaust contribute, the sheer volume generated internally forms the bulk of the typical household dust load. Trace chemical contaminants like flame retardants and heavy metals are concerning because they adhere to these bulk particles, but they do not constitute the primary volume of the mixture.
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