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Waste Reduction Coordinator

Real-Life Activities

Real-Life Math

A waste reduction coordinator deals with math on a daily basis. The math involved may be as simple as counting the number of recycling bins in stock.

Math may become more involved as a waste reduction coordinator prepares reports. They may show percentages for reducing the overall waste stream in the community.

Alec Cooley is a solid waste reduction manager. "Periodically we do waste audits, where we sort and weigh trash according to material type," he says.

"We use this to do a statistical analysis of the waste stream as a whole."

Such audits help waste reduction coordinators determine how well their efforts to reduce waste are working and in which areas to work for better control.

Evaluating programs helps them plan new recycling projects.

You are a waste reduction coordinator. The community where you are employed conducts a waste stream audit quarterly.

The most recent audit separated 1 ton of trash from the regular garbage collection into the following types of waste. Each type of trash was then weighed.

Determine the percentage of the total for each item. (Hint: 1 ton = 2,000 lbs.)

Paper products240 lbs.
Newspapers400 lbs.
Glass300 lbs.
Cardboard40 lbs.
Disposable diapers60 lbs.
Aluminum and cans160 lbs.
Plastic60 lbs.
Kitchen scraps600 lbs.
Misc. (cat litter, yard waste)140 lbs.