What dirties solar panels in Lakeland
Phosphate haul-road dust
South and southeast Lakeland sit close to Polk's phosphate mining and processing corridor. Trucks and rail cars kick up a fine mineral dust that settles as a pale film distinct from ordinary road grit.
Lake pollen and mist
Homes ringing Lake Hollingsworth, Lake Morton and Lake Parker pick up a light mineral mist off the water most mornings, which binds pollen to the glass instead of letting wind carry it off.
Citrus and oak pollen
Remaining citrus groves on the city's fringes plus the mature oak canopy around Dixieland put down a heavy pollen coat every March and April.
Lovebug season
Twice a year lovebugs strike glass along the US-98 and Polk Parkway corridors and bake on within hours if left in full sun.