The national cleanup effort in September collected 79.7 tons of solid waste, organizers reported.
Some 4,456 volunteers participated at 70 locations in the country. More than 50 percent of the waste collected along the beaches and watercourses were tops and plastic bottles of drinks, the organizers said.
The cleanup was sponsored by the Ocean Conservancy which concentrated on the beaches, and Terra Nostra, which has been running cleanups for 10 years. Nearly all the Guanacaste beaches got the once-over. At Playas del Coco some 150 volunteers participated. Some 469 volunteers worked on the Osa beaches.
The organizations catalogued what was picked up and issued a detailed report. For example, 42 tons was recyclable materials, the group said. There was 1.8 tons of aluminum, mostly cans, and nearly 17 tons of discarded tires, which also can be locations where dengue mosquitos lay their eggs.
The campaign grew over 2009 when locations cleaned went from 46 to 79 and the number of volunteers went from 2,574 to the 4,456, the group said.