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INDOOR AIR了解室內空氣

  1. 簡介
  2. 氨氣極易溶于水,對眼、喉、上呼吸道作用快,刺激性強。


  3. 危害
  4. 長時間接觸低濃度氨,引起喉炎、聲音嘶啞、肺水腫。


  5. 氨污染的來源
  6. 專家判斷主要來自建筑施工中使用的混凝土外加劑,主要有兩種, 一種是在冬季施工過程中,在混凝土墻體中加入混凝土防凍劑, 另一種是為了提高混凝土的凝固速度,使用高堿混凝土膨脹劑和早強劑。 另外,室內空氣中的氨也可來自室內裝飾材料, 比如家具涂飾時所用的添加劑和增白劑大部分都用氨水,氨水已成為建材市場中必備的商品。





    氨氣氣體濃度對人體的影響:




  7. 氨污染的危害
  8. 氨是一種無色且具有強烈刺激性臭味的氣體,比空氣輕(比重為0.5)。
    氨是一種堿性物質,它對所接觸的皮膚組織都有腐蝕和刺激作用,可以吸收皮膚組織中的水分,
    使組織蛋白變性,并使組織脂肪皂化,破壞細胞膜結構。氨通常以氣體形式吸入人體進入肺泡內,
    氨被吸入肺后容易通過肺泡進入血液,與血紅蛋白結合,破壞運氧功能。氨的溶解度極高,
    所以主要對動物或人體的上呼吸道有刺激和腐蝕作用,減弱人體對疾病的抵抗力。

    吸入是接觸的主要途徑,吸入氨氣后的中毒表現主要有以下幾個方面:
    急性輕度中毒
    咽干、咽痛、聲音嘶啞、咳嗽、咳痰,胸悶及輕度頭痛,頭暈、乏力,支氣管炎和支氣管周圍炎。
    急性中度中毒上述癥狀加重,呼吸困難,有時痰中帶血絲,輕度發紺,
    眼結膜充血明顯,喉水腫,肺部有干濕性噦音。
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