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- Results of dioxin survey in soil (FY2007)
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Results of dioxin survey in soil (FY2007)
Last updated on April 3, 2024.
This page is a document describing the results of a survey of dioxin concentrations in soil conducted in FY2007 (Heisei 19).
Purpose of the survey
Yokohama City has been investigating dioxins in the soil since 1998, but in 2007, the entire city was divided into 10 districts, one point was selected from each district, and a survey was conducted. We will inform you that the survey results have been compiled.
Survey points and methods
The survey points were selected for parks with bare land with a certain area suitable for sampling, and were collected and analyzed in accordance with the "Soil Survey and Measurement Manual for Dioxins (Environment Agency: January 2000)" .
Date of Survey
From January 24, 2008 to February 15, 2008
Results of the survey
- The concentration of dioxins in the soil at 10 locations in the city was within the range of 0.0016 pg-TEQ / g from a minimum of 65 pg-TEQ / g, and the average was 8.2 pg-TEQ / g. The results of this survey conformed to the soil environmental standard of 1,000 pg-TEQ / g at all points.
- Results of dioxin survey in soil
| Point number | Survey points | Location | Dioxin concentration |
|---|---|---|---|
| １ | Daikoku Wharf Central Green Space | 1, Daikokufutou, Tsurumi-ku | 10 |
| ２ | Shirohata Elementary School | 11-1, Shirahatakamicho, Kanagawa-ku | 0.20 |
| ３ | Yokohama Port Symbol Tower | 1-16, Honmokufutou, Naka-ku | 5.8 |
| ４ | Kotsubo Elementary School | 4-11-1, Kounandai, Kounan-ku | 0.0016 |
| ５ | Nakazawa Elementary School | 3-25-1, Nakazawa, Asahi-ku | 0.67 |
| ６ | Rest Green Space 1-C | 1-12, Fukuura, Kanazawa-ku | 65 |
| ７ | Kamoi Elementary School | 4-7-15, Kamoi, Midori-ku | 0.0035 |
| ８ | Ichigao Elementary School | 1632-1, Ichigaocho, Aoba-ku | 0.0034 |
| ９ | Shimogo Elementary School | Totsuka Ward 2447-2 | 0.0029 |
| 10 | Izumino Elementary School | 6211, Izumicho, Izumi-ku | 0.31 |
※Environmental standards for soil contamination: 1,000pg-TEQ/g or less
Future Responses
From fiscal 2008 onward, similar general environmental surveys will be conducted as necessary.
Inquiries to this page
Water and Soil Environment Division, Green Environment Bureau Environmental Conservation Department, Yokohama City
Phone: 045-671-2494
Phone: 045-671-2494
Fax: 045-671-2809
E-Mail address [email protected]
Page ID: 611-389-513
