英衛生保護局警告／開放式省電燈泡紫外線 傷皮膚

[MK]

http://tw.news.yahoo.com/article/url/d/ ... 17j0d.html
更新日期:2008/10/13 04:09

〔編譯張沛元、記者王昶閔／綜合報導〕英國獨立報十日報導，英國政府公共衛生監督組織「衛生保護局」（ＨＰＡ）警告，省電燈泡所散發的紫外線量，足以傷害皮膚，建議使用開放式（可看到玻璃線圈）省電燈泡時，如距離不到三十公分時，一天的使用時間不要超過一小時。


ＨＰＡ是在應病患團體要求測量省電燈泡散發的紫外線後，發布上述「預防建議」。英國病患抱怨，省電燈泡會加重光敏感狀況，如血液疾病狼瘡、濕疹及紫質症等。


距離應超過30公分 勿超過一小時

又稱壓縮螢光燈泡的省電燈泡有兩種，一種是可看到玻璃線圈的「開放式」，一種是線圈包在第二層玻璃裡、看似傳統燈泡的「壓縮式」。研究顯示，當光源相當靠近皮膚時，五分之一的開放式省電燈泡會散發相當於夏季晴天的紫外線量，值得警惕；當把光源移開超過三十公分，紫外線量就會低於冬季晴天，也無有礙健康疑慮。


ＨＰＡ表示，使用開放式省電燈泡，比如桌燈或讀書燈，應留意距離與使用時間。壓縮式省電燈泡因為包裹兩層玻璃，所以不會散發過量紫外線，也可以近距離使用。


ＨＰＡ執行長麥克拉肯表示，有光敏感情況的民眾應該特別注意，但沒有必要因此完全棄用省電燈泡，只需要在距離上做簡單調整。此外，他也駁斥省電燈泡紫外線孔導致癌症的說法。麥克拉肯指出，省電燈泡紫外線曝曬過量，頂多導致皮膚短時間發紅。


體質敏感者易引發蕁麻疹

三軍總醫院皮膚科主任趙昭明則表示，對於罹患光敏感性皮膚炎患者來說，不僅要留意省電燈泡，傳統日光燈一樣會散發紫外線，長時間近距離暴露，也可能引發蕁麻疹的過敏反應。


趙昭明表示，光敏感性皮膚炎相當少見，這類病患的皮膚，對環境中的紫外線特別敏感，但對於絕大多數沒有這種體質的民眾，並無影響。


趙昭明表示，有光敏感體質者，暴露於大量紫外線時，局部皮膚就可能產生蕁麻疹，引發紅、熱與發癢等症狀。每個患者對於光線的敏感度不同，有些人要近距離照一小時才會過敏，有些人可能十分鐘就會有症狀，另瓦數越大，相對的，也容易引發過敏。因此盡量不要連續近距離待在光源下太久，一旦發生蕁麻疹症狀，應該離開光源，並使用冷水冰敷，降低過敏肌膚的溫度，便能獲得改善。

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