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|"No Excuses, No Nukes" by T. Arata|
The U.S. Nuclear Regulatory Commission (NRC) has received three petitions for rulemaking (PRM) requesting that the NRC amend its “Standards for Protection Against Radiation” regulations and change the basis of those regulations from the Linear No-Threshold (LNT) model of radiation protection to the radiation hormesis model. The radiation hormesis model provides that exposure of the human body to low levels of ionizing radiation is beneficial and protects the human body against deleterious effects of high levels of radiation. Whereas, the LNT model provides that radiation is always considered harmful, there is no safety threshold, and biological damage caused by ionizing radiation (essentially the cancer risk) is directly proportional to the amount of radiation exposure to the human body (response linearity).... The NRC is requesting public comments on these petitions for rulemaking...
and..Public doses should be raised to worker doses. The petitioner notes that “these low doses may be hormetic. The petitioner goes on to ask, “why deprive the public of the benefits of low dose radiation?”...
...End differential doses to pregnant women, embryos and fetuses, and children under 18 years of age...
|A Screenshot from John C. Ratliff's evidentiary video, "Salmon In Trouble,"June, 2015|
Published on Jul 13, 2015
On Tuesday of this week, I dove High Rocks again. ...my primary objective for this dive was to witness and video the spawning of red-sided shiners. Additionally, I had heard that there were some salmon being killed by higher temperatures in the Clackamas River. So I wanted also to investigate this possibility. This dive was two days later, on Thursday, July 2, 2015.
As I was entering the water, I noted two dead salmon floating near my entrance point. Several more were in the back-current in the river.... Hanging from a root was the remains of a female salmon, with its guts open so that I could see the egg mass protruding into the water. This salmon had not had a chance to spawn... Then I noted a dead salmon in the distance, and started swimming toward it....
As I got close, I saw it was not alone in death.
Another screenshot of John C. Ratliff's evidentiary video, "Salmon In Trouble,"June, 2015
There were about seven more behind it.
So I videoed them, then put the helmet down behind the far one and videoed myself picking it up, so as to show the actual size of these huge Chinook.
I then swam further downstream, and noted several more dead salmon. Turning around, I swam back over these dead fish, to get back to where the red-sided shiners were gathered for spawning, hoping to see spawning activity.
As I was observing these, another salmon came by in the current, but it was still alive and making feeble swimming motions while belly-up. It bumped into the first salmon I had seen, and stayed there, expiring. I swam over the dead fish again, then back again and noted the dying salmon still trying to swim downstream, but still belly-up. It was heartbreaking to see this. I continued downstream, noted several other salmon dead, and finally exited at my exit point below the bridge. To me this was a really heart-wrenching dive.
I talked to ODFW's Public Information Officer, Rick Suart, and he talked with the biologists while we were on the phone. It was the consensus of the biologists that these were Willametter River salmon, trying to make it up the Willamette to the McKenzie River, but diverting into the Clackamas River to escape the hot temperatures of the Willamette River. But the Clackamas River was also dropping in water level, and heating up in the hot weather.
When I told Mr. Suart that the lifeguards had measured the river temperature at High Rocks at 72 degrees F, they said that the salmon start having problems at about 60 degrees, and at that high temperature (72 degrees) they not only cannot get enough oxygen from the water, but become very susceptible to infections.
My Suunto Cobra dive computer says that at depth, the water temperature was 70 degrees F. I noted the splotches in the sides of the fish I had observed too. I'm currently editing the video, and will give it to the ODFW soon. I may also send the video to a local news station.
Format mine, with apologies. For his description in full, please go to his Youtube post, here.
Kate Wynne, a Marine Mammal Specialist for the Alaska Sea Grant Marine Advisory Program, told Channel 2 News that since the June 18 announcement of the nine dead fin whales, four humpback whales and another fin whale have been found dead. According to Wynne, the five whales appeared to have been dead for the same amount of time as the previously discovered whales… After the first two whales were discovered… it triggered a response from numerous agencies… “The good news is that this has gotten a lot of us to talk to each other, and be alert,” Wynne said… Wynne thinks the whales may have consumed something toxic… Tests on tissue from one of the whales have proven negative for domoic acid, a biotoxin, and results on two other tests, for Paralytic Shellfish Poisoning (PSP) and Cesium-137 radioactivity, are still pending.
Read more (KTUU) (more sources at Enenews)The testing undertaken includes testing for one form of radiation that may signal impact from the nuclear disaster in Japan. Unfortunately, I have confirmed by email that more comprehensive testing will not be undertaken absent additional funding. (For more information, see note below.)
The geographic scale, rapidity, and taxonomic scope of this mass mortality event are notable, as is the high mortality rate for purple urchins and six-armed sea stars. Although localized mass mortalities are not uncommon... no previously documented mortality event has been so severe over such a large region... Even in comparison with high-severity events, an apparently uniform lack of survivors... following an event is uncommon.... The event documented here was also unusual in its sudden onset and brief time-course, a pattern that is rare in marine systems except in cases of discrete physical disturbance like hurricanes. Large-scale marine mortalities typically take several months or years to progress....
As is the case for many documented mass-mortality events, we cannot unambiguously ascribe the current die-off to a particular cause or set of causes. However, the combination of synchronous and spatially consistent mortality in multiple species, juxtaposed with zero detectable effect in adjacent regions, is consistent with a single, geographically constrained agent. Conceivable causes of the patterns we observed include five, potentially nonexclusive, processes: (1) physical disturbance, (2) mass migration of individuals to areas outside the sampling domain, (3) dysoxia or anoxia, (4) a disease outbreak, and (5) toxicity resulting from a harmful algal bloom (HAB). Of these, toxicity from a HAB is most likely....
"Patterns of Mass Mortality among Rocky Shore Invertebrates across 100 km of Northeastern Pacific Coastline"
Jurgens LJ, Rogers-Bennett L, Raimondi PT, Schiebelhut LM, Dawson MN, Grosberg RK, et al. (2015)
PLoS ONE 10(6): e0126280. doi:10.1371/journal.pone.0126280
Read moreThey hypothesize a Harmful Algae Bloom, although I saw no direct proof had been obtained of this. Certainly a HAB was observed as a primary factor in deaths beginning this year, notably the sea lions in Santa Barbara -- but investigations into the sudden whale and sturgeon deaths in Alaska included testing for the toxins produced by HABs, and the tests were negative. In the case of the latter mortality event, what was especially chilling was that the creatures, large animals, all appeared to die at the same time.
|from a Google Image search|
|from the Lake Chabot website|
Quick biology lesson, since we are here anyway at this semantic juncture, and we need to ratchet down from the red bold lettering above:
Bioaccumulation ought to be distinguished from biomagnification, with which it is often confused by science writers who need to do their homework.
|from Lake Chabot website. idiosyncratic colorization, mine.|
|from "Toxic Algal Blooms and Red Tides, A Global Perspective" by Donald Anderson, Woods Hole Oceanographic Institution, 1989.|
|Josie, a healthy Labrador, a victim of the algae at Lake Chabot.|