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  • Silicait’s one of the most common substances on earth.

    矽是世界上最常見的物質之一。

  • It can be found in materials like sand and rock, and building products like concrete and brick.

    天然的沙、石,以及建築用的混凝土和磚頭都含有矽。

  • When a worker cuts, grinds, or drills materials that contain silica, dangerous crystalline silica dust is released into the air.

    工人在切割、打磨和鑽那些含有矽的物料時,有害的矽塵會散播在空氣中。

  • As the worker breathes, silica crystals flow into his mouth and nose and down the air passages deep into the lungs.

    工人吸入的矽塵就會從口和鼻進入氣管,深入肺部。

  • The tiny crystals enter the small fragile air sacs where oxygen is absorbed into the blood.

    微小的矽塵會進入柔弱的肺氣囊裡面。這些氣囊負責把氧氣吸入血液內。

  • Immune system cells called macrophages engulf and try to dissolve the crystals, but they are unable to.

    免疫系統的巨噬細胞會把矽塵吞噬,然後嘗試分解,但不成功。

  • Over time, more and more crystals build up inside the microphage cells.

    隨著時日,愈來愈多矽塵會積聚在巨噬細胞裡面。

  • The macrophages carry the silica into the walls of the lungwhere they die.

    巨噬細胞把矽塵帶到肺部內壁去,然後細胞就會死亡。

  • Scar tissue forms around the dead cells and spreads as more cells die.

    死去細胞的四周會結痂。愈多細胞死亡,結痂就會愈多。

  • This damage can continue even after the exposure to silica stops.

    即使工人再沒有接觸矽塵,身體的損壞仍會不斷加劇。

  • Eventually, so much scar tissue forms that the lungs can no longer function.

    最後,因為結痂太多的原故,肺部再不能運作。

  • For information on how to protect yourself from silica exposure, visit WorkSafeBC.com.

    欲知更多關於保護自己免受矽塵傷害的資料,請瀏覽網址 WorkSafeBC.com。

Silicait’s one of the most common substances on earth.

矽是世界上最常見的物質之一。

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B1 中級 中文 細胞 肺部 工人 吸入 死亡 氣囊

暴露於二氧化硅 (Silica Exposure)

  • 314 10
    kuoyumei 發佈於 2021 年 01 月 14 日
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