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- Survey of dioxins in soil (fiscal 2005)
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Survey of dioxins in soil (fiscal 2005)
Last update date April 3, 2024
This page is a document describing the results of the survey on dioxin concentrations in soil conducted in 2005 (2005).
Purpose of the survey
From 2000, the city of Yokohama was divided with a 1km mesh, and the survey of 340 meshes was completed in a five-year plan. In 2005, we conducted a survey of relatively high concentrations among the survey results so far, and we will inform you that the survey results of the 28 locations have been compiled.
Survey points and methods
The survey points were selected for parks, temples, and schools with bare land of a certain area suitable for sampling, and collected in accordance with the "Soil Survey and Measure Manual for Dioxins (Environment Agency: January 2000)" Analyzed.
Date of investigation
From February 9, 2006 to February 17, 2006
Survey results
- The concentration of dioxins in soil at 28 locations in the city ranged from a minimum of 0.0018 pg-TEQ / g to a maximum of 73 pg-TEQ / g, and the average was 13.0 pg-TEQ / g. The results of this survey conformed to the environmental standards of 1,000 pg-TEQ/g.
- Survey of dioxins in soil
| Location number | Survey point | Location | Dioxin concentration |
|---|---|---|---|
| １ | Okura-ji Temple | 666, Nakayamacho, Midori-ku | 14 |
| ２ | Ochiai Park | 1109-2, Nakayamacho, Midori-ku | 3.6 |
| ３ | Nakayama Station Kita Daiichi Park | 366-8, Nakayamacho, Midori-ku | 0.33 |
| ４ | Nakayama Gogoku-mae Park | 993-4, Nakayamacho, Midori-ku | 0.41 |
| ５ | Aoto Daisan Park | 635-9, Aotocho, Midori-ku | 0.12 |
| ６ | Iinowa Shrine | 5617 Hara, west of Tsuda-cho, Midori-ku | 47 |
| ７ | 2, Kirigaoka Park | 2-15-26, Kirigaoka, Midori-ku | 0.34 |
| ８ | Tsuchihashi, Seya Park | 9273-9, Oroshihoncho, Seya-ku | 29 |
| ９ | Inokoyama Daiichi Park | 3050-146, Kawashimacho, Asahi-ku | 0.0018 |
| 10 | Inokoyama Daini Park | 3016-2, Kawashimacho, Asahi-ku | 8.4 |
| 11 | Atago Park | 2-33, Shirane, Asahi-ku | 3.3 |
| 12 | Kami Sugeta Third Park | 876-42, Kamisugedacho, Hodogaya-ku | 6.7 |
| 13 | Niimachi Park | 99-2, Araicho, Hodogaya-ku | 2.3 |
| 14 | Land adjacent to the Mitsuzawa Cemetery | 154, 155, 156, Mitsuzawa Kamimachi, Kanagawa-ku | 73 |
| 15 | Kandaji Chuo Park | 3-25, Kandaiji, Kanagawa-ku | 0.56 |
| 16 | Mitsuzawakamimachi Park | 11-18, Mitsuzawakamimachi, Kanagawa-ku | 0.57 |
| 17 | Mitsuzawa Elementary School | 4-17, Mitsuzawanakamachi, Kanagawa-ku | 0.075 |
| 18 | Mitsuzawanakamachi Isao Kitaen Garden | 27, Mitsuzawanakamachi, Kanagawa-ku | 0.0090 |
| 19 | 3, Ooka Green Space | 3-14, Ooka, Minami-ku | 37 |
| 20 | 3, Ooka Park | 3-9, Ooka, Minami-ku | 0.64 |
| 21 | Ooka 3-chome Daini Park | 3-23, Ooka, Minami-ku | 0.13 |
| 22 | Nakazatocho Daiichi Park | 3-272-7, Nakazato, Minami-ku | 0.048 |
| 23 | Okamura Sandendai Park | 4-17, Okamura, Isogo-ku | 1.2 |
| 24 | Takigashira Daini Park | 3-8, Takigashira, Isogo-ku | 66 |
| 25 | Isogo Shimomachi Park | 2, Shimocho, Isogo-ku | 1.3 |
| 26 | Hirochicho Park | 11, Hirochicho, Isogo-ku | 0.0030 |
| 27 | Nakahamacho Daini Park | 14, Nakahamacho, Isogo-ku | 68 |
| 28 | Negishi Babacho Park | 4-1, Babacho, Isogo-ku | 0.12 |
※Environmental standards for soil contamination: 1,000 pg-TEQ/g or less
Future Actions
From fiscal 2006 onward, we will conduct similar general environmental surveys as necessary.
For inquiries to this page
Yokohama City Green Environment Bureau Environmental Conservation Department Water and Soil Environment Division
Phone: 045-671-2494
Phone: 045-671-2494
Fax: 045-671-2809
Email address: mk-dojo@city.yokohama.lg.jp
Page ID: 211-701-121
