Hazard Communication & Other Site Hazards

Hazard Communication (HazCom)

You have a right to know about the chemicals you work around:

• Labels (GHS pictograms) on containers.
• Safety Data Sheets (SDS) — accessible on site for every hazardous chemical.
• Training on the hazards and how to protect yourself.

Silica

Cutting, grinding, or drilling concrete/masonry releases respirable crystalline silica, which causes lung disease. Control it with water (wet cutting), dust collection, and respirators.

Other common hazards

• Ladders & scaffolds — inspect, use correctly, don't overload.
• Housekeeping — clean sites prevent trips, fires, and struck-by injuries.
• Heat — water, rest, shade; know the signs of heat illness.
• Confined spaces — test the atmosphere and follow entry procedures.

Going Deeper (Intermediate)

Hazard Communication (1910.1200) — "the right to know" — is one of OSHA's most-cited standards. Every site must have:

• A written HazCom program.
• Labels on all containers (no unlabeled "mystery jugs").
• Safety Data Sheets (SDS) accessible to every worker.
• Training on the hazards and protections. "Other hazards" rounds it out: noise, ergonomics, housekeeping, and environmental exposures.

Advanced / Pro-Level

Under GHS (the globalized system HazCom adopted):

• The SDS has 16 standardized sections — pros jump to §2 (hazards), §4 (first aid), §7 (handling/storage), §8 (exposure limits/PPE), §10 (reactivity).
• Labels carry a signal word (Danger > Warning), pictograms (flame, health hazard, corrosion, etc.), and hazard/precautionary statements.
• Exposure limits: OSHA PELs vs. the often-stricter ACGIH TLVs and NIOSH RELs — know which governs.
• Incompatible storage (oxidizers away from fuels, acids from bases) and secondary-container labeling are where citations land.

Practice Challenge

A worker is splashed in the eye with an unknown cleaner. Which SDS section gives the immediate response, and what label element would have warned of the severity? (Answer: Section 4 (First-Aid Measures) for the eye-flush procedure; the signal word "Danger" plus the corrosion pictogram flag the severity on the label.)

In Practice

Before using a solvent, a worker checks the SDS and learns it needs ventilation and gloves — info that prevents a chemical burn. The SDS is there for a reason; read it first.

Common Mistakes to Avoid

• Using a chemical without reading the label/SDS
• Dry-cutting concrete (silica) without controls
• Ignoring housekeeping that causes trips and fires

Takeaway: Know your chemicals (labels + SDS), control silica dust, and respect ladders, housekeeping, heat, and confined spaces.

⚠️ Educational overview — this is not official OSHA certification. Get OSHA 10/30 training from an OSHA-authorized trainer, and always follow your employer's safety program and current OSHA standards (29 CFR 1926 for construction).