What dirties solar panels in Ruskin
Vegetable field dust
Ruskin's agricultural belt is active most of the year. Field dust is mineral-heavy and settles in a tan layer that cuts output noticeably within weeks.
Bay salt
Western Ruskin and the Little Harbor area are fully coastal, with the same salt-film problem as Apollo Beach.
Combined dust-and-salt crust
The worst case in the county: salt aerosol binds field dust into a crust that is far more stubborn than either would be alone, and needs dwell time rather than force.
Agricultural equipment traffic
Harvest traffic on US 41 and the county roads adds diesel soot on top of everything else.