Radiological Air Sample Quarterly Composites

IMPORTANT: Please see the attached PDF for more context on this dataset. Per Health and Safety Code 114755 which mandates that "The department shall monitor radioactive materials in the environment", air sampling stations have been placed in or near major population centers with the potential for significant radiological activity. The data presented in this table are for quarterly aggregates of sampling media per site. Dose per quarter is reported in millirem Total Effective Dose Equivalent (TEDE); all other values are radiological activity concentrations reported in units of picoCuries per cubic meter. Any positive result less than the minimum detectable activity is attributable to statistical measurement noise, and results are reported even in the case of non-detection. Beryllium-7 and Potassium-40 are naturally occurring radionuclides. The other radionuclides in the dataset are fission products. Detection of Cesium-137 is not necessarily indicative of a new release because atmospheric nuclear weapons testing distributed significant amounts across the world that are still measurable.

Data and Resources

Field Value
accessLevel public
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identifier beccf141-bb1f-4139-9150-cb0bde74ddb9
issued 2017-06-16T22:09:47.895921
modified 2019-09-13T18:38:21.390021
publisher California Department of Public Health
resource-type Dataset
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • air-sampling
  • amerigeo
  • amerigeoss
  • california-department-of-public-health
  • ckan
  • environmental-radiation
  • geo
  • geoss
  • national
  • north-america
  • radiation
  • radiological-measurement
  • radionuclide-concentration
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer Radiologic Health Branch
maintainer_email opendata@cdph.ca.gov
metadata_created 2025-11-20T15:56:16.014443
metadata_modified 2025-11-20T15:56:16.014447
notes IMPORTANT: Please see the attached PDF for more context on this dataset. Per Health and Safety Code 114755 which mandates that "The department shall monitor radioactive materials in the environment", air sampling stations have been placed in or near major population centers with the potential for significant radiological activity. The data presented in this table are for quarterly aggregates of sampling media per site. Dose per quarter is reported in millirem Total Effective Dose Equivalent (TEDE); all other values are radiological activity concentrations reported in units of picoCuries per cubic meter. Any positive result less than the minimum detectable activity is attributable to statistical measurement noise, and results are reported even in the case of non-detection. Beryllium-7 and Potassium-40 are naturally occurring radionuclides. The other radionuclides in the dataset are fission products. Detection of Cesium-137 is not necessarily indicative of a new release because atmospheric nuclear weapons testing distributed significant amounts across the world that are still measurable.
num_resources 4
num_tags 14
title Radiological Air Sample Quarterly Composites