Following up this article..Chemical Complex is on fire with nuclear fuel in Yamaguchi
The complex owner, Mitsui chemicals hold 71.1 tones of depleted uranium.
They have 8 complexes in Japan but it is not known which site holds depleted uranium.
Iwakuni Otake site holds 3379 units of nuclear waste.
Osaka site holds 1889 units of nuclear waste.
Depleted uranium may be preserved in one of them or both.
At the moment, wind blows to North west at 5m/s.
At 5:00 (JST), non-methane hydrocarbon (NMHC) concentration spiked up by 400%, at 2km south to the site.