2022-07-23_GENERAL DOCUMENTS - M1989074

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contamination may be present at the site. Chemical substances in gaseous, liquid, or solid form can enter the unprotected worker by inhalation, skin absorption, ingestion, or through a puncture wound (injection). A contaminant can cause damage at the point of contact or can act systemically in a different part of the body. Substances can pass through lung tissue into the bloodstream and on to other susceptible areas of the body. 9 Since some toxic chemicals are not detectable by human senses, their toxic effects may not produce any immediate symptoms. Respiratory protection is therefore extremely important if there is a possibility that the worksite atmosphere may contain such hazardous substances. The skin and eyes also represent important routes of exposure. Some chemicals directly affect the skin, while others may pass through the skin into the bloodstream where they can be transported to other vulnerable organs. Skin absorption is enhanced by abrasions, cuts, heat, and moisture. The eye is particularly vulnerable because airborne chemicals can dissolve in its moist surface and be carried to the rest of the body through capillaries located close to the surface of the eye. Protection against skin and eye contact may be provided by: • Wearing protective equipment; • Keeping hands away from the face; and • Minimizing contact with liquid and solid chemicals. Inadvertent ingestion can occur as a result of personal habits such as chewing gum or tobacco, drinking, eating, smoking cigarettes, and applying cosmetics. These practices may provide a route of entry for chemicals and are restricted in work areas. General Precautions If signs of contamination different from those addressed in this plan are encountered, such as visible soil stains, unusual odors, or fibrous debris, stop all work in the area, barricade or otherwise isolate the area, and immediately contact the SHSO. Protection of worker health and safety shall be the first priority. Continuation of work in the area and the amount of, if any, personal protective equipment shall be determined by the SHSO. Other precautions to be undertaken to ensure a safe work place on this project where the potential for chemical exposure may exist include: • No smoking, eating, or drinking in areas where contaminants may be present; • Avoid the area immediately downwind of any excavation; • Contact with contaminated materials should be minimized through the knowledge of site conditions and the location of potential contamination based on previous site investigation reports; • Minimize the creation of dust, through dust suppression such as water application; and • Adequately barricade all work zones to ensure public safety. Biological Hazards BEC Mine Closure Project August 8, 2022