Other areas with potential are passive - solar design, highly efficient woodstoves in nonmetro areas, and windpower. (thetyee.ca)
And the fireplace with woodstove — maybe the brick could be removed and replaced with native stone? (hookedonhouses.net)
Typically, these particles are found in windblown or construction dust and are emitted by woodstoves, fireplaces, trash incinerators and wildfires. (discovermagazine.com)