Riverside California Highest Spike by far Since Fukushima Accident(s)
The EPA Radnet has shown what I would consider a significant recent spike that occurred from April 29th through May 6 throughout the Southern California region -- L.A., Anaheim, and especially Riverside, which is at its HIGHEST LEVEL since the nuclear accident. And, although I am no scientist, it seems odd that I've always noted that most spikes -- like this recent one --seem to keep occurring AGAINST the movement of the Jet Stream (in other words, when the Jet Stream has been hitting NorCal, SoCal spikes).
Please, if anyone from BRAWN -- or any of you well-self-educated persons on here --- have a good explanation for both these things answer, I'd appreciate it.
Increased hot particle or radon spiking in California?
Last Thursday and Friday (September 15 and 16th) several +6 magnitude shakers hit off the East Coast of Honshu, Japan. Weakened Fukushima nuclear plants further weakened? One wonders. Several days later, about September the 18th, continuing through the present, a number of California cities registered unusually high epa radnet reported gross beta spiking. In Los Angeles the spikes appeared to range from 100 to over 350 CPMs. The spiking just happened to occur about the time the Fukushima trade winds should have reached the Pacific West Coast, following the multiple +6 earthquakes off of Japan's East Coast. Coincidence? So, do we have increased hot particle radiation fallout from Fukushima, or temperature related radon artifact spiking?
Re the comments that precede my notes concerning temperature related radon flares/spiking, I have noticed that there have been many days in Los Angeles, where the temperature completely soared, but little radiation spiking occurred? If the temperature theory for radon flaring is accurate, seems like all these exceptionally hot periods would be accompanied by increased radon spiking. But, they have not. Hot particles anyone?
Actually, either way it is not so good: Continued huge radon artifact spiking over several days at a time (and continuing as I write). Or, longer last hot particle contamination fallout, which without rain tends to blow away to some other poor soul's backyard. Neither possibility is exactly healthy. What fun! What fun!
Stay healthy all!
P.S., Sorry guys. Just
P.S., Sorry guys. Just noticed the May dates of this thread. But, the same issues still continue. Now, it is September, 2011 and the huge spiking continues once more at unusually high levels in Los Angeles. This high gross beta spiking just happens to follow the multiple very large quakes that hit off Japan's East Coast about the time the Japan jet stream arrives on the Pacific West Coast. One wonders. Temperature radon spiking? Further Fukushima power plant damage and radiation emissions re the continued pounding of large quakes off of Honshu's East Coast?
But if you actually look at
But if you actually look at the number of earthquakes there are in eastern Japan, I don't think the large quakes you mention are an exception. If earthquakes and the crippled Fukushima plant are the cause, we would have huge spikes every other week since March.
Multiple +6 magnitude Japan quakes nothing to sniff about!
The quakes of a week ago, Thursday and Friday of September 15th and 16th, off of the East Coast of Honshu, Japan were not the frequently, typically occurring 4 to 5 magnitude shakers that commonly frequent Japan. (see the USGS website at: http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_big.php ). Rather, these shocks were three, I repeat three multiple +6 magnitude earthquakes--- powerful, huge earthquakes in their own right! If a +6 magnitude shaker hit Los Angeles today, believe me, we in Los Angeles would bloodly well be screaming. Massive damage likely might result from such a +6 magnitude trembler, if the shaking lasted long enough in duration. The San Fernando Valley Northridge Quake in Southern California of the mid 1990's was devastating to Los Angeles. I believe it was rated at about a 6.8 quake. (Though, sure felt many, many times worse to me as I experienced that Northridge quake.) In the midst of that quake, it occurred to me that I might die, the jolting shaking was so powerful. It was accompanied by mind blowing incredible noise, like a freight train ripping through your house; like the earth self-destructing. The Earth's final days are upon me, I thought.
Well, here on September 15 and 16, Japan has three, I repeat three plus 6 magnitude quakes off of its East Coast. Absolutely nothing to sniff about! More damage to Fukushima's already horrendously damaged nuclear power plants? Very likely, I would say. More radiation fallout to the Pacific West Coast? I would not be surprised. I would not be surprised.
The tremendous spikes in
The tremendous spikes in background radiation in SoCal have been very disconcerting, despite the explanations here. (no offense to all those who've contributed, but it doesn't help our health).
It appears that the spikes are very possibly due to increased seismic activity, releasing radon.
Regardless, this is not a good place to live any longer and we are leaving.
Just to bring in some earlier discussion
This was posted on another thread. And I had pointed out that the spikes were pretty cyclic. Mark from the BRAWM team kindly pointed out that there
was "a pretty clear anticorrelation between gamma rates and temperature".
After running a few graphs for both Riverside and San Bernadino Co, I saw
the same anticorrelation between gross beta count and temperature. This
however does not explain the level of spikes seen during this time period.
Perhaps further examination of historical levels and temps will shed more
light on this. I'll check later if someone doesn't beat me to it :-)
EPA Query Link: https://cdxnode64.epa.gov/radnet-public/query.do
BRAWM Team Response Below:
========================================================================
Probably gain drift with temperature
Submitted by bandstra on Fri, 2011-05-06 16:18.
Very good observation. If you follow that link, and then do a database search and include the ambient temperature data, you can make a scatter plot of one of the gamma range rates versus temperature and see a pretty clear anticorrelation between gamma rates and temperature -- when temperature goes down, rates go up. This could lead to the 24-hour cycle in the RadNet data.
If RadNet is using sodium iodide detectors or some other kind of scintillator crystal, the gain can change with temperature. That is, unless there is some sort of automatic compensation for temperature (e.g., this system), the shape of the gamma-ray spectrum measured by the detector will change slightly with temperature.
As has been mentioned by other team members, we don't know too much about the specifics of RadNet and our word is not authoritative. We have cautioned against reading too much into the data, though, since the data that is presented is raw (counts per minute) with little interpretation.
Mark [BRAWM Team Member]
========================================================================
Comparing 2010 & 2011 Temps
Ok. I don't know if this has any relevance or not, but I compared same
dates (5/2 thru 5/9) for 2010 and 2011. The temps in 2010 were consistently
lower than this year.
Avg high in 2010 was around 23C (peak of 26.8C). Avg high this year was
around 28C (peak of 35C and 3 peaks above 30C). As you would expect, 2010
had lower lows as well. Average low for 2010 was 5C. With one at 3C. 2011
had an average low of 10C with one at 6C.
Again, other than the explanation Mark of the BRAWM team gave, I have no
idea how the temps impact the readings.
Date/Time Temp10 BGCR(CPM) Date/Time Temp11 BGCR(CPM)
5/2/2010 0:36 15.1 20 5/2/2011 0:43 23.7 57
5/2/2010 1:36 14.2 20 5/2/2011 1:44 22.7 55
5/2/2010 2:36 12.8 21 5/2/2011 2:44 19.5 57
5/2/2010 3:36 11.4 19 5/2/2011 3:44 15.8 61
5/2/2010 4:37 9.5 20 5/2/2011 4:44 13.3 66
5/2/2010 5:37 7.9 20 5/2/2011 5:44 11.1 71
5/2/2010 6:37 6.9 22 5/2/2011 6:45 9.9 80
5/2/2010 7:37 6.1 21 5/2/2011 7:45 8.9 81
5/2/2010 8:38 5.5 24 5/2/2011 8:45 7.6 87
5/2/2010 9:38 5 25 5/2/2011 9:45 6.7 93
5/2/2010 10:38 4.8 26 5/2/2011 10:46 6.1 99
5/2/2010 11:38 4.8 26 5/2/2011 11:46 5.1 110
5/2/2010 12:39 4.3 27 5/2/2011 12:46 4.3 119
5/2/2010 13:39 5.4 27 5/2/2011 13:46 6 119
5/2/2010 14:39 6.5 28 5/2/2011 14:46 10.7 126
5/2/2010 15:39 7.5 30 5/2/2011 15:47 16.3 130
5/2/2010 16:39 10.2 31 5/2/2011 16:47 21.7 124
5/2/2010 17:40 11.3 29 5/2/2011 17:47 25 107
5/2/2010 18:40 13.8 27 5/2/2011 18:47 25.5 91
5/2/2010 19:40 14.9 25 5/2/2011 19:46 26.4 87
5/2/2010 20:40 17.1 25 5/2/2011 20:47 27 85
5/2/2010 21:40 18 26 5/2/2011 21:47 28.6 80
5/2/2010 22:41 17 23 5/2/2011 22:47 28.8 74
5/2/2010 23:41 16.2 18 5/2/2011 23:47 28.3 68
5/3/2010 0:41 15.4 16 5/3/2011 0:48 28.6 69
5/3/2010 1:41 14 15 5/3/2011 1:48 25 64
5/3/2010 2:42 12 13 5/3/2011 2:48 22 67
5/3/2010 3:42 10.6 14 5/3/2011 3:48 18.2 70
5/3/2010 4:42 9.6 15 5/3/2011 4:48 15.8 70
5/3/2010 5:42 8 17 5/3/2011 5:49 13.6 78
5/3/2010 6:42 7.2 18 5/3/2011 6:49 11.6 85
5/3/2010 7:43 5.9 20 5/3/2011 7:49 10.5 96
5/3/2010 8:43 5.8 24 5/3/2011 8:49 9.8 111
5/3/2010 9:43 4.6 26 5/3/2011 9:50 9.3 121
5/3/2010 10:43 3.7 29 5/3/2011 10:50 8.2 128
5/3/2010 11:44 3.2 35 5/3/2011 11:50 7.4 141
5/3/2010 12:44 2.7 37 5/3/2011 12:50 6.2 157
5/3/2010 13:44 4.4 42 5/3/2011 13:50 8.5 162
5/3/2010 14:44 8.5 45 5/3/2011 14:51 14 170
5/3/2010 15:44 12 42 5/3/2011 15:51 19.7 175
5/3/2010 16:45 15.1 36 5/3/2011 16:51 26.1 166
5/3/2010 17:45 19.1 33 5/3/2011 17:51 28.3 126
5/3/2010 18:45 22.2 29 5/3/2011 18:52 28.8 103
5/3/2010 19:45 23.4 28 5/3/2011 19:52 32.3 86
5/3/2010 20:46 23.9 26 5/3/2011 20:52 31.3 73
5/3/2010 21:46 24.3 24 5/3/2011 21:52 33.8 68
5/3/2010 22:46 25.2 22 5/3/2011 22:39 32.8 61
5/3/2010 23:46 24.2 20 5/3/2011 23:54 32.1 15
5/4/2010 0:46 23.3 19 5/4/2011 0:54 29.9 20
5/4/2010 1:47 21.2 18 5/4/2011 1:54 27.1 24
5/4/2010 2:47 18.9 19 5/4/2011 2:54 24.6 26
5/4/2010 3:47 16.9 19 5/4/2011 3:54 21.2 29
5/4/2010 4:47 15.1 20 5/4/2011 4:55 18.7 32
5/4/2010 5:47 11.7 20 5/4/2011 5:55 15.8 36
5/4/2010 6:48 9.8 25 5/4/2011 6:55 14.6 43
5/4/2010 7:48 8.5 28 5/4/2011 7:55 12.7 45
5/4/2010 8:48 7.3 33 5/4/2011 8:56 11.5 51
5/4/2010 9:48 6.6 36 5/4/2011 9:56 10.9 55
5/4/2010 10:49 5.5 39 5/4/2011 10:56 10 60
5/4/2010 11:49 5 42 5/4/2011 11:56 9.1 70
5/4/2010 12:49 5 47 5/4/2011 12:56 9 76
5/4/2010 13:49 8.1 52 5/4/2011 13:57 10.9 82
5/4/2010 14:49 10.8 53 5/4/2011 14:57 17.2 91
5/4/2010 15:50 15.9 52 5/4/2011 15:57 24.7 93
5/4/2010 16:50 18 46 5/4/2011 16:57 28.2 84
5/4/2010 16:56 18.8 41 5/4/2011 17:58 29.2 69
5/4/2010 18:11 21.5 8 5/4/2011 18:58 31.3 69
5/4/2010 19:11 23.5 15 5/4/2011 19:58 32.3 67
5/4/2010 20:11 24.8 18 5/4/2011 20:58 34.1 68
5/4/2010 21:11 23.3 19 5/4/2011 21:58 32.7 64
5/4/2010 22:12 24.6 17 5/4/2011 22:59 31.7 64
5/4/2010 23:12 23.1 15 5/4/2011 23:59 31.1 62
5/5/2010 0:12 23.2 15 5/5/2011 0:59 29.4 58
5/5/2010 1:12 22.1 14 5/5/2011 1:59 27.2 51
5/5/2010 2:12 19.3 16 5/5/2011 3:00 24 45
5/5/2010 3:13 16.9 17 5/5/2011 4:00 22.1 44
5/5/2010 4:13 14.8 18 5/5/2011 5:00 18.7 47
5/5/2010 5:13 14 21 5/5/2011 6:00 17.4 50
5/5/2010 6:13 11.7 21 5/5/2011 7:00 15.3 53
5/5/2010 7:14 10.4 25 5/5/2011 8:01 14.1 62
5/5/2010 8:14 9.4 28 5/5/2011 9:01 12.8 72
5/5/2010 9:14 8.1 34 5/5/2011 10:01 11.6 86
5/5/2010 10:14 7.2 38 5/5/2011 11:01 10.6 103
5/5/2010 11:14 6.1 47 5/5/2011 12:02 10 107
5/5/2010 12:15 5.6 49 5/5/2011 13:02 9.5 114
5/5/2010 13:15 5.2 49 5/5/2011 14:02 11.5 117
5/5/2010 14:15 8.9 53 5/5/2011 15:02 16.3 120
5/5/2010 15:15 11.2 54 5/5/2011 16:02 20 124
5/5/2010 16:15 14.5 52 5/5/2011 17:03 22.8 117
5/5/2010 17:16 17.2 46 5/5/2011 18:03 26.7 108
5/5/2010 18:16 19.8 39 5/5/2011 19:03 28.9 100
5/5/2010 19:16 21.8 35 5/5/2011 20:03 30.6 87
5/5/2010 20:16 22.3 31 5/5/2011 21:03 31.8 88
5/5/2010 21:17 22.9 32 5/5/2011 22:04 31.5 93
5/5/2010 22:17 21.7 27 5/5/2011 23:04 30.3 69
5/5/2010 23:17 21 25 5/6/2011 0:04 28.4 60
5/6/2010 0:17 19.8 23 5/6/2011 1:04 26.5 53
5/6/2010 1:17 18.8 22 5/6/2011 2:05 23.6 52
5/6/2010 2:18 15.7 23 5/6/2011 3:05 19.7 51
5/6/2010 3:18 13.5 24 5/6/2011 4:05 17.9 53
5/6/2010 4:18 11.9 24 5/6/2011 5:05 16.4 54
5/6/2010 5:18 10.7 28 5/6/2011 6:05 14.4 56
5/6/2010 6:18 9.6 30 5/6/2011 7:06 13.5 61
5/6/2010 7:19 8.4 31 5/6/2011 8:06 12.1 63
5/6/2010 8:19 7.3 36 5/6/2011 9:06 11 76
5/6/2010 9:19 7.5 39 5/6/2011 10:06 10 92
5/6/2010 10:19 7.7 44 5/6/2011 11:07 9.2 108
5/6/2010 11:20 7.5 46 5/6/2011 12:07 8.4 125
5/6/2010 12:20 7.8 44 5/6/2011 13:07 8.2 128
5/6/2010 13:20 7.6 46 5/6/2011 14:07 9.9 151
5/6/2010 14:20 7.8 54 5/6/2011 15:07 11 172
5/6/2010 15:20 9.1 49 5/6/2011 16:08 14.6 167
5/6/2010 16:21 10.5 47 5/6/2011 17:08 18.1 148
5/6/2010 17:21 12.2 44 5/6/2011 18:08 21.5 126
5/6/2010 18:21 13.9 43 5/6/2011 19:08 25.2 105
5/6/2010 19:21 16.1 43 5/6/2011 20:09 26.2 88
5/6/2010 20:22 17.3 43 5/6/2011 20:51 26.5 87
5/6/2010 21:22 20.2 43 5/6/2011 22:07 25.6 19
5/6/2010 22:22 21.3 42 5/6/2011 23:07 25.7 26
5/6/2010 23:22 20.7 37 5/7/2011 0:08 24.6 27
5/7/2010 0:22 18.5 29 5/7/2011 1:08 23 28
5/7/2010 1:23 16.3 26 5/7/2011 2:08 19.7 29
5/7/2010 2:23 14.3 24 5/7/2011 3:08 16.5 34
5/7/2010 3:23 13 23 5/7/2011 4:08 15.1 37
5/7/2010 4:23 11.9 24 5/7/2011 5:09 14.1 38
5/7/2010 5:23 11.2 27 5/7/2011 6:09 13.1 39
5/7/2010 6:24 9.8 27 5/7/2011 7:09 11.8 44
5/7/2010 7:24 8.6 28 5/7/2011 8:09 10.6 53
5/7/2010 8:24 7.5 32 5/7/2011 9:09 10 64
5/7/2010 9:24 6.8 39 5/7/2011 10:10 9.2 74
5/7/2010 10:25 6 40 5/7/2011 11:10 9.3 82
5/7/2010 11:25 5.2 44 5/7/2011 12:10 9.3 92
5/7/2010 12:25 4.8 50 5/7/2011 13:10 9.5 94
5/7/2010 13:25 4.8 51 5/7/2011 14:11 9.5 99
5/7/2010 14:25 9.4 54 5/7/2011 15:11 9.8 101
5/7/2010 15:26 12.8 51 5/7/2011 16:11 10.3 108
5/7/2010 16:26 16.1 48 5/7/2011 17:11 12.1 101
5/7/2010 17:41 19.7 11 5/7/2011 18:12 14.8 95
5/7/2010 18:41 23.4 20 5/7/2011 19:12 16.4 91
5/7/2010 19:41 24 22 5/7/2011 20:12 18.2 88
5/7/2010 20:42 25.5 21 5/7/2011 21:12 19.2 91
5/7/2010 21:42 26.8 24 5/7/2011 22:12 19.6 89
5/7/2010 22:42 26.1 23 5/7/2011 23:13 19.9 72
5/7/2010 23:42 25 20 5/8/2011 0:13 18.7 60
5/8/2010 0:43 23.7 17 5/8/2011 1:13 16.3 51
5/8/2010 1:43 20.5 18 5/8/2011 2:13 14.7 49
5/8/2010 2:43 16.4 19 5/8/2011 3:14 12.6 49
5/8/2010 3:43 14.9 19 5/8/2011 4:14 11.9 52
5/8/2010 4:43 13.7 21 5/8/2011 5:14 11.8 53
5/8/2010 5:44 13.2 22 5/8/2011 6:14 11.5 54
5/8/2010 6:44 10.8 22 5/8/2011 7:14 11.3 56
5/8/2010 7:44 9.3 23 5/8/2011 8:15 11 60
5/8/2010 8:44 8.2 27 5/8/2011 9:15 11 62
5/8/2010 9:44 7.3 33 5/8/2011 10:15 10.7 63
5/8/2010 10:45 6.5 36 5/8/2011 11:15 11 68
5/8/2010 11:45 5.9 40 5/8/2011 12:15 10.5 67
5/8/2010 12:45 5.3 46 5/8/2011 13:16 10 67
5/8/2010 13:45 7.4 51 5/8/2011 14:16 10.2 68
5/8/2010 14:46 10.2 51 5/8/2011 15:16 10 62
5/8/2010 15:46 13.5 49 5/8/2011 16:16 10 63
5/8/2010 16:46 15.5 42 5/8/2011 17:17 11.5 67
5/8/2010 17:46 17.8 39 5/8/2011 18:17 14.5 68
5/8/2010 18:46 19.9 34 5/8/2011 19:17 16.3 59
5/8/2010 19:47 22.2 32 5/8/2011 20:17 16.2 51
5/8/2010 20:47 22.9 32 5/8/2011 21:17 16.7 47
5/8/2010 21:47 23.1 28 5/8/2011 22:18 17.3 42
5/8/2010 22:47 22.1 26 5/8/2011 23:18 15.9 39
5/8/2010 23:47 20.5 27 5/9/2011 0:18 13.8 38
5/9/2010 0:48 20 27 5/9/2011 1:18 12.8 35
5/9/2010 1:48 17.4 25 5/9/2011 2:19 11.6 31
5/9/2010 2:48 15.1 26 5/9/2011 3:19 10.2 29
5/9/2010 3:48 13.5 26 5/9/2011 4:19 10.3 28
5/9/2010 4:49 11.8 25 5/9/2011 5:19 9.6 27
5/9/2010 5:49 10.1 28 5/9/2011 6:19 9.7 27
5/9/2010 6:49 10 28 5/9/2011 7:20 9.1 28
5/9/2010 7:49 8.5 28 5/9/2011 8:20 8.5 30
5/9/2010 8:49 7.1 29 5/9/2011 9:20 8.3 31
5/9/2010 9:50 6.2 32 5/9/2011 10:20 7.8 32
5/9/2010 10:50 5.2 33 5/9/2011 11:21 7.7 31
5/9/2010 11:50 4.8 38 5/9/2011 12:21 7.7 33
5/9/2010 12:50 5.2 42 5/9/2011 13:21 7.9 33
5/9/2010 13:51 5.7 45 5/9/2011 14:21 8.2 34
5/9/2010 14:51 8.1 46 5/9/2011 15:21 9.2 35
5/9/2010 15:51 9.6 43 5/9/2011 16:22 10.7 34
5/9/2010 16:51 10.5 39 5/9/2011 17:22 12 33
5/9/2010 17:51 12.3 37 5/9/2011 18:22 13.9 34
5/9/2010 18:52 13.3 36 5/9/2011 19:22 14.5 33
5/9/2010 19:52 14.4 37 5/9/2011 20:22 14.9 30
5/9/2010 20:52 15.8 34 5/9/2011 21:23 16.6 31
5/9/2010 21:52 15.6 26 5/9/2011 22:23 15.8 30
5/9/2010 22:53 14.3 21 5/9/2011 23:23 15.6 27
5/9/2010 23:53 12.8 20
" I have no idea how the
" I have no idea how the temps impact the readings."
There seems to be a 4-5 hour phase delay in the correlation and the correlation is not absolute but relative. The swings are about +/-50% of the mean for any given day. I was able to tighten the correlation by plotting temperature v. cps_rel but delaying cps by 4 or 5 hours. Here cps_rel I define as (cps - mean(cps))/(maxcps - mincps) for any given day. There is pretty much a linear correlation of temperature to relative cps if one corrects for the phase delay. A linear regression of this data yielded:
rel_cps(T) = -0.0265 * T + 0.4571
This just says that the temperature effect is approximately 2.65% per degree C. This is most likely going to be different for other energy windows.
Spikes Temp Related?
Hi Dr. Chivers,
Thanks for digging into this further. Much appreciated.
Do you believe the relatively wide temp. swings could cause
the beta gross count to be elevated to 150+? It seems too
cyclic to be related to any sort of "plume".
Big Temp Swings
Ok. The only difference I can see between this year (2011) and the
previous 3 years (2008-2010) is that there were larger temp swings
over more days this year. And as can be seen from the data posted,
as the temp swings narrowed, the CPM levels came down.
2011 had:
4.3C to 28.8C (24.5C swing)
6.2C to 33.8C (27.6C swing)
9.1C to 34.1C (23.0C swing)
9.5C to 31.8C (22.3C swing)
8.2C to 26.2C (16.0C swing)
9.2C to 19.9C (10.7C swing)
10C to 17.3C (7.3C swing)
7.7C to 16.6C (9.6C swing)
2010 had the next largest swings:
4.3C to 18.0C (13.7C swing)
2.7C to 25.2C (22.5C swing)
5.0C to 24.8C (19.8C swing)
5.2C to 22.9C (17.7C swing)
7.3C to 21.3C (14.0C swing)
4.8C to 26.8C (22.0C swing)
5.3C to 23.1C (17.8C swing)
4.8C to 15.8C (11.0C swing)
2008 and 2009 had narrower swings at a higher temp range.
10.9C to 24C (13.1C swing) and 12.1C to 34.8C (22.7C swing)
for 2008 and 2009 respectively.
Could it be Xenon? Just a
Could it be Xenon? Just a guess, but it would seem that if there is less air movement, that could accumulate more especially in the LA basin. Like I said, I am just guessing like for most of this stuff we don't have enough information. Maybe look at the NILU site for plume forcasts?
NILU rad forecasts removed-alternate found w/high readings
NILU rad forecasts removed-alternate found w/high readings
NILU plume forecast readings are no longer available to public.
Recovered past / current forecasts illustrating extremely high I131, Xenon, and Cesium measurements.
http://www.dutchsinse.com/blog/
http://zardoz.nilu.no/~flexpart/fpinteractive/plots/?C=M;O=D
...like the last high forecasts showing EXTREMELY HIGH levels of Cesium, Xenon, and Iodine over the USA and Canada.
I think if the jetstream
I think if the jetstream hits Nocal, it will also hit Soucal at the same time, why do you think this would not be the case?
Location of Jet Stream during 4/29 to 5/7
I believe I was wrong when I said it was "hitting Northern California... the Jet Stream was actually hitting the very top of northern California and (mostly) the Pacific Northwest and Canada, so SoCal seemed COMPLETELY FREE of that flow/plume at almost the exact same six or so days of the long Beta spiking that occurred there, at least according to http://squall.sfsu.edu/scripts/nhemjetstream_model.html
The Jet Stream Swings
I'm not the original poster, but the jet stream can move to the
north or south of North America. If you look at the following
weather model, you'll see all the different directions the
weather hits the US.
http://www.stormsurfing.com/cgi/display_alt.cgi?a=npac_250
I'm not saying that this supports any theories about what is going
on with the LA area beta gross counts. But, *stuff* can hit different
parts of the west coast at different times and different intensities.
Just like storms.
I'd feel much more confident
I'd feel much more confident living in California if food samples were being taken everywhere. I mean who In Riverside would want to eat their vegetables when they see that Beta spike on the EPA graph?
I can understand your concern
But, the cyclic nature of the CPM along with the temps seems
like something other than environmental contamination. I'm
not an expert by any means. In fact, I only know what I know
now because of the crisis in Japan. But, I would expect a
CPM increase related to any sort of "plume" to be much more
consistent. And not return to normal as the temps stablized
(lower temps with narrower range). I would also expect to
see areas other than S. Calif have increased activity. In
the SF bay area (where I am at), we are not seeing this. And
that's a very slight jet stream wiggle from S. Calif. So, I
would assume we'd see SOMETHING. But, we are not. The CPM
count *is* cyclic in SF as well though. But, we haven't had
the wide temp range as in S. Calif. SF has had a total range
of 7C to a high of 27C. With a max one day swing of maybe 15C.
However, it does appare that SF also experienced higher CPM
measurements (only up to about 28 CPM though) during times
of greater temp swings. So, that phenomenon appears to be
consistent with So. Calif.
I don't know. I think I'd blame this on temps/EPA equipment
technicalities and not worry so much about local produce.
I'm hoping Dr. Chivers will chime in again to expand on his
findings.