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- Measurement status of radioactive material concentration and air dose at waste incineration plants
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Measurement status of radioactive material concentration and air dose at waste incineration plants
Last update date September 14, 2023
Measurement results
- Regarding exhaust gas, coagulation sedimentation sludge, reused water and effluent, the survey was completed in March 2017 because the concentration of radioactive material concentration continued.
- Since the concentration of radioactive materials incinerated ash generated at the garbage incineration plant continues to fall below 100Bq / kg (the national landfill standard is 8,000 Bq / kg). Measurement was completed in March 2019, along with air doses.
Changes in concentrations of radioactive material concentrations (total of Cs-134 and Cs-137)
Changes in concentrations of radioactive materials in fly ash (total of Cs-134 and Cs-137)
※The lower limit of quantification of Cs-134 and Cs-137 is 20Bq / kg. If the value is less than the lower limit of quantification, each value is added as 0Bq / kg.
Reference
Concentration of radioactive materials such as sewage sludge
Measurement of radioactive material concentration and air dose in landfill
For inquiries to this page
Policy Coordination Division, Resources and Waste Recycling Bureau Policy Coordination Department
Phone: 045-671-4565
Phone: 045-671-4565
Fax: 045-550-4239
Email address: sj-chousa@city.yokohama.jp
Page ID: 863-818-086