I thought it might be useful to see what's being reported in British Columbia since they are part of the west coast as well.
Here is some of the info I found from two articles.
There's quite a bit of info in this article, so I'm just pasting a few paragraphs, but if interested, you will want to go read all of it. For example, at the end of the article they give a description of the process employed in changing the filters and communicating the information from the detectors.
The 1st part is as you can see from text in the link, they are reporting from the same point of view as current reports in the U.S.
They note they are consulting each day. I have included some info on food and dairy, since they provide some points of note about that and it is being much discussed here and there. There is more info on that in the article after the section I included.
One thing I'm noticing in articles from here and there is that it's not always clear tom if they are talking about radiation totals from all the days of the events or about what is blowing in at the moment. I find myself wishing they would specify that more since they seem to switch that reference without noting they've done so. Of course, part of that may be uncertainty on their part until it gets here and they are able to measure.
http://www.vancouversun.com/news/Radiation+nothing+worry+about/4462648/story.htmlRadiation 'nothing to worry about' in B.C.By Randy Shore and Margaret Munro, Vancouver Sun; Postmedia News March 18, 2011
Officials from the health and environment ministries of B.C. and coastal U.S. states are holding a conference call each morning to monitor the approach of radioactive material and form a coordinated response.
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An advisory from B.C.'s Ministry of Agriculture says the amounts of radioactive material released in Japan pose no threat to the province's food supply.
Contamination by the radioactive element iodine 131 -the most likely to be released by the troubled reactors -would take only a single growing season to clear, the note says, and dairy cows could be protected from exposure simply by feeding them stored silage.
"If it was suspected that radioactive material was dispersed over farmland, it would not be a hard thing to detect it and confirm or refute a significant health hazard," said Mildenberger.
If a significant amount of radioactive material were to deposit in British Columbia, it could enter the food supply through field crops directly consumed by humans or through forage crops consumed by beef and dairy cattle, according to associate professor Andrew Riseman of the University of B.C.'s faculty of land and food systems.
For the 2nd article, I'm posting the 1st 4 paragraphs since they provide a good summary.
http://www.ctvbc.ctv.ca/servlet/an/local/CTVNews/20110318/bc_radiation_health_fears_110315/20110318?hub=BritishColumbiaHome9 more radiation monitoring stations coming for B.C.By: Darcy Wintonyk, ctvbc.ca
Date: Friday Mar. 18, 2011 4:03 PM PT
Health Canada is adding nine more radiation monitoring stations in B.C. to check for any fallout from damaged Japanese nuclear power plants.
There are already six stations in B.C. Dr. Paul Gully, senior medical health advisor with Health Canada, says the 15 stations will provide continuous information on radiation levels in the air. The agency says it will work with Environment Canada to monitor wind patterns that affect the trajectory of any radiation plumes.
"Our assessment ... is that there's no risk to residents in Canada and no foreseeable risks, even with modelling of the worst case scenario," Gully said. "However, we feel it's right in order to be able to continue to reassure Canadians we have the information available on which to base that assessment. It's a precautionary measure."
Meanwhile, B.C.'s provincial health officer says authorities are considering deploying portable nuclear monitoring devices around the province to measure radiation levels coming across the Pacific Ocean from Japan.