研究のタイプ: 医学／生物学の研究 (observational study)

[シュバシコウ （ヨーロッパコウノトリ）の個体数に対する携帯電話基地局アンテナからの電磁界の影響の可能性] med./bio.

Possible Effects of Electromagnetic Fields from Phone Masts on a Population of White Stork (Ciconia ciconia)

著者: Balmori A
掲載誌: Electromagn Biol Med 2005; 24 (2): 109-119
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この研究は、スペインの都市バラリャリッドで、携帯電話基地局アンテナの影響可能性を調べるために、アンテナ近くでのシュバシコウ （ヨーロッパコウノトリ）の群れの個体数をモニタリングした。その結果、全体の繁殖率は、アンテナの200m以内の全ての巣では0.86±0.16、300m以上離れた巣では1.6±0.14であり、マンホイットニー検定で有意差が認められた；200m以内の巣の平均の繁殖率は1.44±0.16、300m以上離れた巣の平均は1.65±0.13であり、この差は有意ではなかった；200m以内の巣のうち24個（40%）でヒナが生まれなかったが、300m以上離れた巣ではそれが１個（3.3%）だけであった；電界強度は、200m以内の巣では2.36±0.82 V/m、300m以上離れた巣では0.53±0.82 V/mであった、などを報告している。

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研究目的（著者による）

To monitor of a white stork population in Valladolid (Spain) in the vicinity of cellular phone base stations with the objective of detecting possible effects.

詳細情報

60 nests were monitored. Nests were separated in two categories: Nests located within 200 m of one or several antennae and nests located furhter than 300 m.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 900–1,800 MHz
Modulation type: pulsed
ばく露時間: continuous during all phases of breeding

ばく露1

主たる特性
周波数 900–1,800 MHz
タイプ
  • electromagnetic field
ばく露時間 continuous during all phases of breeding
Modulation
Modulation type pulsed
ばく露装置
ばく露の発生源／構造
  • 基地トランシーバ局
  • 900 MHz GSM and 1800 MHz DCS
ばく露装置の詳細 Nests were either located within 200 m from one or several BTS antennae or located more than 300 m from any BTS. They were situated on masts and on the roofs of buildings at a height of 15-30 m.
パラメータ
測定量 値 種別 Method Mass 備考
電界強度 2.36 V/m mean 測定値 - nests within 200 m
電界強度 0.53 V/m mean 測定値 - nests farther than 300 m
測定および計算の詳細

Electric field was measured using a "Nuova Elettronica" device with 10% sensitivity, from a unidirectional antenna. The measurements were made in the vicinity of the nests under similar conditions with the antenna directed toward the BTS antenna in line of sight.

ばく露を受けた生物:

方法 影響評価項目／測定パラメータ／方法

研究対象とした生物試料:
研究対象とした臓器系:
調査の時期:
  • ばく露中

研究の主なアウトカム（著者による）

The total productivity in the nests located within 200 meters of antennae, was 0.86 ± 0.16 and the partial productivity was 1.44 ± 0.16. For those located further than 300 m, the total productivity was practically doubled, with an average of 1.6 ± 0.14. Partial productivity was 1.65 ± 0.13.
Twelve nests (40%) located within 200 m of antennae never had chicks, while only one located further than 300 m had no chicks.

研究の種別:

研究助成

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