Tag Archives: 134-Cs

Sockeye Salmon, Inshore Waters Test Fukushima-Free

 By John Gleeson originally posted to the Coast Reporter

RADD testing
Citizen scientists from the Powell River area collected seawater samples at Lang Bay Estuary last month. – Katherine McLean Photo

Continue reading Sockeye Salmon, Inshore Waters Test Fukushima-Free

First Seawater Monitoring Result From Victoria, BC: No Fukushima Contamination as of Oct. 15, 2014

By Jay T. Cullen

@JayTCullen and @FukushimaInFORM

On the granite blocks that make up the south side of Ogden Point Breakwater getting ready to take the first InFORM sample (photo by Katherine Maas)
On the granite blocks that make up the south side of Ogden Point Breakwater getting ready to take the first InFORM sample (photo by Katherine Maas)

What we found:

137-Cesium activity = 1.3 (+/- 0.1) Bq m-3 (Becquerel per meter cubed of seawater)
134-Cesium activity = Not Detected
Water Temperature = 10.5 C

The InFORM team collected a seawater sample in collaboration with citizen scientists in Victoria on Wednesday, Oct. 15 at the Ogden Point Breakwater (map shown below).  The sample was processed and the amount of gamma emitting isotopes determined using a high purity germanium detector.  We look primarily for radioisotopes of cesium (134-Cs half life ~2 years and 137-Cs half life ~ 30 years) for the following reasons: Continue reading First Seawater Monitoring Result From Victoria, BC: No Fukushima Contamination as of Oct. 15, 2014

Looking For Fukushima Contamination in Mushrooms and Soil of Western North America

By Jay T. Cullen

@JayTCullen

Chanterelle Cantharellus cibarius
 

The purpose of this diary is to report results from a recently published, peer reviewed study (behind paywall) examining the degree of Fukushima contamination in fungi and soil of western North America. The diary is the most recent contribution to an ongoing series which aims to provide evidence from scientific studies assessing the impact of the Fukushima Daiichi disaster on the environment and the health of residents of North America. Trappe and colleagues measured the activity of cesium isotopes (134-Cs half life ~ 2 years; 137-Cs half life ~30 years) in wild mushrooms, soil and leaf litter of the west coast from California up to Vancouver Island. The conclusions of the study were as follows:

  1. No activity measurements exceeded levels thought to impact human health
  2. 137-Cs activity increased in fungi and soil towards the north
  3. 134-Cs increased to the south in leaf litter
  4. Chanterelles did not significantly bioconcentrate Cs isotopes
  5. 137-Cs and 134-Cs activities were highly variable from sample to sample
  6. 137-Cs levels largely reflected non-Fukushima sources from either atmospheric weapons tests in the last century or the Chernobyl disaster in 1986

Continue reading Looking For Fukushima Contamination in Mushrooms and Soil of Western North America

Testing the waters for Fukushima

Story by John Gleeson

Originally posted to the Coast Reporter Sept. 4, 2014

Despite the doom porn circulating on the Internet, there has been no radiation from Fukushima detected yet along the Salish Sea – or if you prefer, the Strait of Georgia.

That’s according to Jay Cullen, a chemical oceanographer at the University of Victoria.

Continue reading Testing the waters for Fukushima

Guest Blog Post on Cancer Prevention Centre: Radioactivity from Fukushima-Daiichi disaster poses no danger to British Columbia

By Jay T. Cullen

Originally posted to Cancer Prevention Centre on Dec. 9, 2014

Radioactivity from Fukushima-Daiichi disaster poses no danger to British Columbia

On the granite blocks that make up the south side of Ogden Point Breakwater getting ready to take the first InFORM sample (photo by Katherine Maas)
On the granite blocks that make up the south side of Ogden Point Breakwater getting ready to take the first InFORM sample (photo by Katherine Maas)

Public demand for information about the impact of the triple reactor meltdowns in March 2011 at the Fukushima-Daiichi nuclear power plant on the marine ecosystem and on the health of those residing on the Pacific coast of North America is considerable. After all, as a result of the devastating earthquake and tsunami, radioactive elements from the nuclear power plant, including but not limited to cesium, iodine, strontium, and plutonium, were released—and continue to be released—into the atmosphere and ocean. In the more than three years since the disaster, these elements have been distributed across the Pacific Ocean and around the globe. Continue reading Guest Blog Post on Cancer Prevention Centre: Radioactivity from Fukushima-Daiichi disaster poses no danger to British Columbia