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All of US coasts, but especially the West coast, remain vulnerable to contamination from nuclear plants, both domestic and foreign. Someone or some agency needs to be conducting regular tests, either by collecting samples directly or by testing samples provided on a regular basis by trained monitoring personnel in the US Coast Guard.

Bloody nonsense

Very true, Tim. It just goes to show how effective the anti-nuclear propaganda has been.

Of course, the oceans are routinely monitored for all sorts of possible hazards by all kinds of agencies.

Below is a website from Woods Hole, which has had a monitoring program in the Pacific for the last several years. The years are color-coded.

For radioactive species, cesium isotopes are usually of the most concern and are easily detected. The Cs-134 isotope would be an indicator of Fukushima radiation. If there is some Cs-137, then that cesium is most likely left over from the atmospheric nuclear weapons tests of the Cold War era. Cs-137 has a longer half-life than Cs-134.

The vast majority of the readings lately have had No Detectable Cs-134. However, the description from Woods Hole indicates they believe some Cs-137 have elevated readings on the West coast. Even if true, the levels are very low.

It should be noted that the World Health Organization (WHO) drinking water limit for radioactive cesium (Cs-134 and Cs-137) is 10,000 Becquerels per cubic meter (Bq/m3). The later readings of even Cs-137 are almost always below 5 Bq/m3. Though I do not recommend drinking seawater because of the high salinity, and possible other nasties that might be in there.

- Pete
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