Abstract: A directional sediment and pollution monitor adapted to be positioned in the body of water. A baffle is positioned in the upper, open end of each collecting tube for minimizing turbulence in the collecting tube and to inhibit the escape of materials. Means are also provided for collecting samples at short time intervals, for measuring the compass heading of the framework structure and collecting tubes, and for measuring and recording changes in the compass heading over short and long interval of time.

Abstract: An aquatic sediment and current monitor adapted to be positioned in a body of water comprising an elongate, vertically alignable, collecting tube having an open upper end and a closed lower end for collecting, over a long period of time, the natural materials and polluting substances that accumulate in the body of water. A generally funnel-shaped magnifying cone is positioned with the small diameter end thereof extending into the open end of the collecting tube to magnify the amount of sediment and pollution collected. A baffle is positioned in the magnifying cone adjacent the large diameter end thereof. A marking material dispenser is provided for automatically marking, at regular intervals, the quantity of sediment and pollution accumulated in the collecting tube during such intervals. A current wheel is positioned above the baffle for measuring the velocity of currents in the water body.