Tag: nitrates

Tech: Remote-Controlled Conservation

Illinois researchers searching for the best ways to reduce nitrates in drinking water are looking to an unlikely tool: a remote-controlled airplane.

In the Mackinaw River watershed in Central Illinois, The Nature Conservancy and partners are working to reduce high nitrate levels in water by filtering agricultural run-off through wetlands, a tactic that research shows can reduce nitrates by 50%.

These particular types of wetlands are specifically constructed to collect and retain water from tile drainage. Tiling is an underground system of tubing that drains wet fields. These tiles then drain water—and untreated nitrates and phosphates from the field—directly into the river.

The challenge: Tiling is underground. You can’t detect it with your eyes. Literally millions of miles of tile run under Illinois farm fields, so locating tile patterns in farm fields is imprecise at best.

Enter the remote-controlled airplane.

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