KRGV.com

NARAHA, Japan (AP) Two years after the triple calamities of earthquake, tsunami and nuclear disaster in Japan, the cleanup is dirty, and some say that's in more ways than one.

Researchers say debris containing asbestos, lead, PCBs and radioactive waste, are sometimes dumped with scant regard for regulations. And authorities suspect a growing organized crime involvement in the cleanup process.

Researchers are only beginning to analyze environmental samples for potential health implications.

The government is relying on big construction companies whose multi-layer subcontracting systems are infiltrated by criminal gangs, or yakuza.

In January, police arrested a senior member of Japan's second-largest yakuza group, Sumiyoshi Kai, on suspicion of illegally dispatching three contract workers to one city through another construction company and pocketing one-third of their pay.

Tomorrow is the second anniversary of the disaster.