The Charleston County Aviation Authority and Charleston International Airport will recognize Earth Day 2014 with two Foreign Object Debris Walks at the airport Thursday.

Led by the agency's Operations Department, the two walks by airport employees will take place at 9 a.m. and 3:30 p.m. to pick up litter and loose objects around the airport's two concourses.

Litter and other loose objects can become dangerous projectiles on an airport apron or become lodged in aircraft engines. Foreign object debris management includes routine daily inspections of the ramp and airfield.

In addition to paper, cans and plastic, the Aviation Authority also recycles batteries, fluorescent light bulbs, tires and oil. LED lighting is used on the airfield and in airfield signage to save on energy use and costs.

The agency launched a formal recycling program in 2009. Since then, more than 130 tons of aluminum, glass, plastic and newspapers have been collected for recycling. More than 304 tons of cardboard have been recycled. Through March of this year, more than 31 tons of material have been recycled.