51 Sailors from USS Ronald Reagan Suffering Thyroid Cancer, Leukemia, Brain Tumors After

[idwiyo]

42. All that is needed now is some idea what level of radioactivity was present in sea water,

what isotopes, if there are any pretreatment procedures in effect on that boat.

You could than check how dangerous/safe that drinking water was according to the worst case scenario.

87-98% reduction of radioactivity level in drinking water to me looks like excellent result.

For example, lets check it against this article (bolding is mine):

http://www.huffingtonpost.com/2013/10/10/radiation-fukushima-high_n_4075066.html

Tepco said combined Cesium-134 and Cesium-137 readings just outside the damaged No. 2 reactor spiked to 1,200 becquerels per litre on Wednesday, more than 13 times the level on Tuesday.

Cesium-134 readings were 370 becquerels per litre while Cesium-137 was 830/litre within a silt fence right outside the reactor building. Regulatory limits for Cesium, which emits a strong gamma radiation and is harmful to the human body, is 90 bq/litre for Cesium-137 and 60 bq/litre for Cesium-134.

Assuming worst case scenario as no pre-treatment, water comes from within silt fence with the radioactivity levels from the article:

1200-1200/100*87=1200-12*87=1200-1044=156

90+60=150

Meaning that it's still safe to drink even that water after running it through RO unit.