Information related to radiation control in Yokohama

Following the occurrence of the Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Station accident in March 2011, the city measured space radiation doses at approximately 4,300 facilities under the jurisdiction of the city during FY2011.
As a result, it has been confirmed that there are no regional biases or problematic values in the radiation dose in the space where you usually live.
In addition, about space radiation dose in Yokohama-shi, we announce measurement result of radiation monitoring post (outside site) installed in municipal land of Buddha Hodogaya Ward (measured every hour 24 hours a day) from time to time I am.

Please refer to the relevant information page of the country and research institutes.

It is represented by the measurement location (measurement height).

• Gardens of licensed nursery schools(0.5m ground surface)
• Schoolyard of Yokohama City School
  Elementary school (ground surface 0.5m), junior high school (ground surface 1m)
• Park(0.5m ground surface)
• Radiation monitoring post (outside site)
  Muko west of Hodogaya Ward Buddha (1m surface)
• River facilities (water facilities, etc.)(0.5m and 1m surface)
• Roads around the facility(0.5m and 1m surface)
• Water purification plant(0.5 to 1m above ground surface)

• About microspot
  It also contains information on the discovery of hot spots for private homes and guidelines for countermeasures against local contaminated areas.
• Appropriate treatment of removed soil

• Nursery schools, etc.
• Park
• Incineration plants, collection offices, etc. (PDF: 195KB)
• Ward office public hall
• Other facilities
  • Institute of Health (PDF: 10KB)(Measured in 2012)

• Measurement results of radioactive materials in tap water and raw tap water

• Information on radioactive materials in food
• Measurement of radioactive materials in school lunch ingredients
  • Elementary school school lunch
  • Nursery School school lunch

• Marine Park Beach (measured results for FY2012)
  • About space radiation dose measurement of sandy beach (PDF) (PDF: 142KB)
• About the situation of radiation dose measurement in Yokohama Port
• Sewage sludge
  • Measurement results of radioactive material concentration of inflow sewage, discharge water, dewatered sludge, sludge incineration ash
• Compost, etc.
  • Measurement status of radioactive cesium concentration and spatial radiation dose at "Yokohama Animal Forest Park Green Recycling Plant"
• Soil, dust, and sediments (FY2011)
  • Inspection results of soil, dust, and sediment at places where radiation doses higher than the surrounding area were detected (press release document) (PDF: 303KB)
  • Measurement results of radiation dose at municipal nursery schools and municipal schools in Kohoku Ward following the confirmation of places where radiation doses at higher levels were measured around road gutters in Kohoku Ward (press release document) (PDF: 159KB)

• Appropriate treatment of removed soil generated by microspot response, etc.
• About designated waste
• Yokohama City Radiation Countermeasures Record (2011/2011)
• Rental of radiation dose measurement equipment
• About places where radiation dose higher than the surrounding area was measured (so-called microspots)
• To manager of rainwater use equipment (news) (PDF: 135KB)
• To managers of private rainwater regulating ponds (about radiation dose measurement before work)
• About radiation dose measurement before work such as cleaning of retarding ponds
• Handling of household air purifier dust collection filters
• About radioactive materials of special forest products (mushrooms, wild plants, firewood, charcoal, pellets, etc.) (outside site)(Research Institute website)

• List of Yokohama City Radiation References
• Information on radioactivity in Kanagawa Prefecture (atmosphere, tap water, food, etc.) (outside site)(Kanagawa Prefecture website)