Subjects: DISSOLVED oxygen in water; WATER quality; COLOR of waterBRAZIL; RIO Grande do Sul (Brazil : State); PELOTAS (Rio Grande do Sul, Brazil)
Record details
Subjects: SEDIMENT sampling; WATER; WATERSHEDSRIO Grande do Sul (Brazil : State); BRAZIL; PAMPAS (Argentina)
Subjects: WATERSHEDS; RAIN forests; WATER supplyBRAZIL
Subjects: WATER; TOILETS; WATERSHEDSNEW York (N.Y.); BRAZIL; NEW York (State)