然而，根据国家海洋和大气管理局的海洋废弃物方案，海啸产生的碎片受放射性物质污染是非常不可能的。
However, it's highly unlikely the tsunami-generated debris would be contaminated with radioactive material, according to the National Oceanic and Atmospheric Administration's Marine debris program.
联合国环境规划署称«海洋垃圾：全球挑战»是首份试图盘点全球12个主要区域海洋废弃物污染的报告。
The study, Marine Litter: A Global Challenge, is the first attempt to take stock of the marine-litter situation in the 12 major regional seas around the world, UNEP said.
从人类粪便到工业废弃物最终都进入了河流，湖泊和海洋。
Everything from human waste to industrial waste ends up in our rivers, lakes, and oceans.
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