MNN Galleries

The 10 worst pollution problems in the world

By: chief on Oct. 16, 2009, 11:21 p.m.
Radiation monitoring

Photo: iStockphoto

10 of 12

Radioactive waste and uranium mining

While some countries have well-regulated industries that manage radioactive waste appropriately, many of the largest producers of uranium (used as a fuel in nuclear reactors), are in areas where the industry's safety standards are weak.