In Japan, the weather's making an environmental disaster worse. Heavy rains from recent typhoons fell on the stricken nuclear plant at Fukushima. Some of the rainwater became radioactive. Here's Japan's public broadcaster NHK with the story.
Workers at Fukushima-Daiichi have been struggling for months with leaks of contaminated water. Now they're dealing with another problem -- rain. They saw a heavy downpour last week during a typhoon. And on Sunday, another storm brought more than 100 millimeters of rain. All that water built up inside barriers surrounding tanks that store contaminated water. Workers discovered it had flowed over the barriers at 11 spots. In six areas, they detected levels of radioactive strontium above the government's safety limits. The highest rating was more than 70 times the standard. Now the workers are trying to find out whether some of the water flowed through ditches and into the Pacific Ocean. The barriers are designed to contain any tainted water that leaks from the tanks. The ones that fitted with drainage pipes. Initially, whenever it rained, workers opened the pipes to discharge rainwater. But in August, they found that 300 tones of highly radioactive water had leaked from one of the tanks. It traveled through a pipe to the area beyond the barrier. Workers decided to shut off all the pipes and pump out any water that collected inside the containment area. They now check the pumped out water for radioactivity to ensure it meets government's standards. Heavy rains are making that job a lot harder. Managers plan to install more pumps around the tank to make sure they can deal with any amount of water. They say they don't want to get caught out the next time a storm hits.