Might be wrong but might be for dust prevention, we have firetrucks that go around spraying roads in especially dusty areas, mostly dirt roads so it helps keep houses/buildings cleaner longer and helps with visibility if you're following a car down a dirt road
Kristen Youngblood
Mehdi Arabpour
Nook Luvin Hers Stiff
Robin Stricklin
Kara McKinney
Riza Sembrano De Borja
Mian Sohail Farooqi
Kim Baccountemi Agbor
Bobby Degina
Karen Henderson
Simon Balzan
LeeAnn Shane Clutter
Mary Murray
Mutcasa Montealegre Resh
Sammy Lee Stowers
Michael Catuiza
Dana Sue Veach
Rosemary Mariam Yakubu
Rebel Jutt