Cesium levels hit tens of billions of becquerels at river mouth, AJW by The Asahi Shimbun, November 25, 2011 (Emphasis Added):
- Researchers have sounded the alarm over river water containing cesium levels at tens of billions of becquerels a day flowing into the sea near Fukushima Prefecture
- They called for immediate and continued monitoring of the situation.
- The daily radiation levels are equivalent to the total of amount of cesium in low-level contaminated water released into the sea in April by TEPCO
50 Billion Becquerels of Cesium Per Day… Outside Fukushima Prefecture
- The Abukumagawa river runs [...] near Koriyama and Fukushima [60 km west of meltdowns...] and flows into the Pacific Ocean at Iwanuma in Miyagi Prefecture.
- The researchers estimated the level for cesium-137 at 29.1 billion becquerels a day and that for cesium-134 at 23.4 billion becquerels a day–both at the mouth of the river
- Cesium levels are lower at the mouth of the river
Even Higher in Date
The estimated levels near Date [60 km NW of meltdowns], a city situated at the middle reaches of the river, were 92.5 billion becquerels a day for cesium-137 and 83.8 billion becquerels a day for cesium-134.
Happening Now & Later
- Yosuke Yamashiki, associate professor of environmental engineering at
Kyoto University… “The inflow will likely continue for some time. But
the content can be reduced”
- The researchers said cesium is continuing to contaminate the river water after it fell to the the ground in the watershed area and was carried into the river by rainfall
- More cesium could contaminate the river during decontamination operations and tilling of rice paddies in preparation for transplanting young rice plants, they added
Other Study Information
- The monitoring was commissioned by Japan’s science ministry
- Cesium tends to accumulate in areas where there is a dam
Published: November 27th, 2011 at 10:27 pm ET