This is POLLEN, running in rivulets in the streets and gutters of Stuttgart, Ark USA last month. It is a yearly thing. Everything, cars, streets, is layered in a green mist. You can see it in the air. Even the network weathermen give pollen counts in their broadcasts. We have the 2nd highest allergy rate in the country.(And sickest people) I can see why!! And a mild winter and early spring has made it worse. You go to the drugstore, and the allergy medicine is ALL GONE! My friend had to drive 80 miles one way to get Benadryl!!… Shot March 2012 with a SanyoVPC-E2100.