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Crystalline silica – general fact sheet (Arabic)

السيليكا المتبلورة – نشرة معلومات عامة

Silica dust is a hazard when inhaled into the lungs. This fact sheet helps you manage the risks.

يشكّل غبار السيليكا خطراً عند استنشاقه ودخوله إلى الرئتين. تساعدك نشرة المعلومات هذه على التحكّم بالمخاطر.

What is crystalline silica?

ما هي السيليكا المتبلورة؟

Crystalline silica is a naturally occurring mineral found in most rocks, sand, clay, and in some manufactured products such as bricks, concrete, tile and engineered stone.

In its stable solid form, crystalline silica is not harmful.

السيليكا المتبلورة معدن يتكوّن بصورة طبيعية في معظم أنواع الصخور والرمل والصلصال، ويتواجد في بعض المنتجات المختلفة كطوب البناء والإسمنت والبلاط والأحجار المركّبة. وعندما تكون السيليكا المتبلورة في شكل صلب ومستقر فإنها لا تعتبر ضارة ضارة.

Where is crystalline silica used?

أين تُستخدم السيليكا المتبلورة؟

Crystalline silica is a very common mineral used in manufacturing building products and construction materials. Manufactured materials containing silica include fibre cement sheets, bricks, tiles, and cement.

Workers can also come across crystalline silica when undertaking construction works that require excavation or tunnelling through quartz containing rocks such as shale and sandstone.

السيليكا المتبلورة معدن شائع جداً يُستخدَم في تصنيع منتجات البناء ومواد التعمير. وتشمل المواد المصنَّعة المحتوية على السيليكا صفائح الأسمنت الليفي وطوب البناء والبلاط والأسمنت. ويمكن أن يتعرض العمال للسيليكا المتبلورة أثناء قيامهم بأشغال البناء التي تتطلب الحفر ورفع الأتربة أو حفر الأنفاق عبر صخور تحتوي على مادة الكوارتز كالصخور الطينية والأحجار الرملية.

How can crystalline silica harm workers?

كيف يمكن أن تُلحق السيليكا المتبلورة الضرر بالعمال؟

Very fine particles of crystalline silica dust present a hazard when inhaled into the lungs. Airborne dust is most likely to occur when materials or products containing silica are cut, sanded, drilled or any other action (task) that creates fine dust.

Exposure to RCS dust can have serious health effects depending how much dust a worker breathes in and for how long.  These health effects can include:

  • silicosis – a scarring of the lung which can result in a severe shortness of breath and is not reversible. Severe cases can result in complications leading to death
  • lung cancer
  • kidney disease.

Applying risk controls such as minimising the generation of airborne silica dust can reduce hazardous exposures and prevent illness in the workplace.

السُّحار السليسيّ (سليكوز) – وهو عبارة عن تندُّب في الرئتين قد ينجم عنه قصور شديد في التنفس غير قابل للعلاج. وقد ينجم عن الإصابات الشديدة بهذا الداء مضاعفات تؤدي إلى الموت سرطان الرئة أمراض الكلى. ويمكن بوجود الضوابط الملائمة، كالتقليل من صدور الغبار المحمول في الهواء، خفض مخاطر التعرّض لهذا المعدن والحماية من المرض في مكان العمل.

السُّحار السليسيّ (سليكوز) – وهو عبارة عن تندُّب في الرئتين قد ينجم عنه قصور شديد في التنفس غير قابل للعلاج. وقد ينجم عن الإصابات الشديدة بهذا الداء مضاعفات تؤدي إلى الموت

سرطان الرئة

أمراض الكلى.

ويمكن بوجود الضوابط الملائمة، كالتقليل من صدور الغبار المحمول في الهواء، خفض مخاطر التعرّض لهذا المعدن والحماية من المرض في مكان العمل.

How to protect yourself and workers

كيفية حماية نفسك وحماية عمالك

  • Any worker involved in high-risk silica work activities or workers who may be at risk of exposure to RCS because of that work activity must complete an approved crystalline silica training course
  • Provide all workers with information and instruction on how to work safely with silica products in the workplace
  • Eliminate tasks that generate dust where possible
  • Apply water suppression systems to reduce dust generation
  • Use local exhaust ventilation systems to capture and remove dust at the source
  • Use dust capture systems on portable tools
  • Instruct workers in the correct use, selection, fit, and maintenance of respiratory protective equipment
  • Avoid using compressed air to remove or clean settled dust
  • Avoid dry sweeping where possible
  • Follow instructions and controls outlined in safety data sheets and product labels

يجب أن يُكمل كل عامل يشارك في نشاطات عمل عالية الخطورة تشمل السيليكا أو العمال الذين يمكن أن يكونوا عُرضة لخطر التعرّض للسيليكا المتبلورة القابلة للاستنشاق بسبب نشاطات العمل هذه، يجب أن يُكملوا ’دورة تدريبية مُعتمدة خاصة بالسيليكا المتبلورة‘

زوّد جميع العمال بالمعلومات والإرشادات عن كيفية العمل بأمان بالمنتجات التي تتضمن السيليكا في مكان العمل

ضع حداً للأعمال التي ينشأ عنها غبار قدر الإمكان

استخدم أنظمة مياه مخمِّدة للغبار لخفض صدوره

استخدم أنظمة شفط محلية لالتقاط الغبار وإزالته من المصدر

استخدم أنظمة التقاط للغبار ضمن الأدوات المحمولة

زوّد العمال بإرشادات عن وسائل استخدام معدات وقاية الجهاز التنفسي واختيارها وارتدائها وصيانتها بصورة صحيحة

تجنَّب استخدام الهواء المضغوط لإزالة الغبار الساكن أو تنظيفه

تجنّب الكنس بالوسائل الجافة حيثما أمكن ذلك

اتبع التعليمات والضوابط المذكورة في نشرات بيانات السلامة وملصقات المنتجات

Monitoring requirements

متطلَّبات المراقبة

  • Health monitoring must be provided for workers who are involved in any ongoing work that creates RCS dust, even if respiratory protection is used to control exposure
  • Air monitoring must be undertaken when:
    • it is necessary to determine if workers are at risk from exposure to RCS, or
    • you’re unsure if the amount of airborne RCS at the workplace exceeds the Workplace Exposure Standard (WES) levels.

يجب ’مراقبة صحة العمال‘ الذين يشاركون بأية أشغال متواصلة ينشأ عنها غبار سيليكا متبلورة قابل للاستنشاق ، حتى لو تم استخدام معدات وقاية للجهاز التنفسي لضبط التعرّض للغبار

يجب مراقبة نوعيّة الهواء عندما:

يكون من الضروري تحديد ما إذا كان العمال عُرضة لخطر التعرّض للسيليكا المتبلورة القابلة للاستنشاق، أو

تكون غير متأكد مما إذا كانت كمية السيليكا المتبلورة القابلة للاستنشاق في مكان العمل تتجاوز مستويات ’التعرّض القياسية في أماكن العمل‘(WES).

Further information

  • Crystalline silica
  • Crystalline silica technical fact sheet (English)
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