Skip to main content

Analyze

Navajo Nation (Diné Bikéyah), USA: Setting

Thomas De Pree

On July 16th 1979, the largest by volume radioactive spill in US history took place in Church Rock (Kinłitsosinil), which is located in the southeastern “checkerboard area” of the Navajo Nation (Diné Bikéyah) and northwestern New Mexico. Due to a breach in the former United Nuclear Corporation’s uranium mill tailings dam, an estimated ninety-four (~94) million gallons of radioactive, toxic, and highly acidic effluent spilled into the Puerco River (Brugge et al. 2002; SRIC 2009).

The Church Rock Uranium Mill Tailings Spill marked the disastrous beginning of the end for the uranium mining industry in the Navajo Nation and New Mexico. Ironically, the spill occurred on the very same day as an event 34 years prior that marked the beginning of the uranium boom and the dawn of the atomic age: the Trinity Test of July 16th 1945, “the day the sun rose twice.” (Szasz 1984) Unlike the world’s first nuclear explosion in southern New Mexico, the Church Rock mill spill remains relatively underreported and has not yet registered at a national scale of collective memory.

pece_annotation_1472844513

tamar.rogoszinski

This study is published in the Japanese Journal of Clinical Oncology. This journal is for clinical oncologists and publishes articles about medical oncology, clinical trials, radiology, surgery, basic research, epidemiology, and palliative care. It was established in 1971 as the first journal from Japan to publish clinical research on cancer in English. It is a sister-journal to the Journal of the National Cancer Institute. It is also linked through the Oxford Journals. 

pece_annotation_1472844704

tamar.rogoszinski

The object of this study is to observe whether or not there was an overdiagnosis of thyroid cancer after the Fukushima nuclear disaster in 2011. They did this by comparing the observed prevalance of thyroid cancer in the Thyroid Screening Programme with the estimated historical controls on the assumption that there was neither nuclear accident nor screening intervention. 

pece_annotation_1472844848

tamar.rogoszinski

The article is published in the Japanese Journal of Clinical Oncology. It is meant for clinical oncologists and publishes articles on medical oncology, clinical trials, radiology, surgery, basic research, epidemiology, and palliative care. It was established in 1971 and is the first journal from Japan to publish clinical research on cancer in English. Since 1977, JJCO is a sister-journal to the Journal of the National Cancer Institute and is linked through Oxford Journals. 

pece_annotation_1472845180

tamar.rogoszinski

They calculated the observed/expected (O/E) ratio of thyroid cancer prevalence for residents in Fukushima Prefecture that were below the age of 20. Observed prevalence was calculated by the number of thyroid cancer cases detected by the end of April 2015. The number of detected cases was corrected for screening rate by multiplying the inverse of the age-specific screening rate. The expected prevalence was obtained from another report, which was calulated using a life-table method using national estimates from 2001-10. Age-specific prevalence of thyroid cancer was estimated using the cumulative risk from 2010. The annual percent change of increasing cases of thyroid cancer was taken into account as well.