1.1Occupational risks (overview)
The essentials in 30 seconds
- 6 families: falls, handling/MSDs, machines, chemicals, fire/electrical, psychosocial — each station ticks its own.
- Prevention pays: downtime, replacements, delays and image cost far beyond care; MSDs dominate recognized diseases.
- Reflex: walk before counting — one hour visiting with operators beats a month of statistics.
Threaded mini-case — Hakim, QHSE coordinator in an industrial SME in Algiers
Hakim has just been appointed QHSE coordinator of an industrial SME with 45 employees in Algiers (sheet-metal workshop, warehouse, offices). On day one, he resists the urge to compile statistics in the office: he puts on his safety shoes and walks for an hour with the operators — entrance, warehouse, workshop, offices. Greasy floor, boxes stored high, badly adjusted screen, hidden extinguisher: four risks seen, noted, photographed with consent. His visit becomes the starting point of the whole level.
This same case runs through the lesson, the diagram, the script and the 48h challenge — and continues in 1.2, 1.3, 1.4 and 1.5.
1. The panorama in 6 families
Falls (same level, from height), manual handling (back, MSDs), machinery (crushing, cuts), chemical (burns, poisoning), fire/electrical, psychosocial (stress, harassment). Each company ticks its own families: an office fears screens and stress, a workshop fears machinery and chemicals.
2. Eye-opening figures (orders of magnitude)
Work accidents cost companies far beyond medical care: downtime, replacements, delays, image, penalties. MSDs (musculoskeletal disorders) dominate recognised diseases in industry. Remember the order of magnitude, not the exact figure: prevention pays.
3. See before you count: the walkthrough
Before any spreadsheet, walk: floors, storage, postures, missing guards, behaviours. The field visit (with operators, never without them) reveals more in one hour than statistics in one month. Take photos (with consent), note, prioritise.
🔎 Concrete example — 🔎 Hands-on example — A one-hour visit
Reading: each observation = a future DUERP line.
Route: entrance → storage → workshop → offices
Note: greasy floor (fall), boxes stored high (falling object),
screen with no footrest (MSD), hidden extinguisher (fire)
→ 4 risks seen, photos, prioritisation back at the deskLesson: with the operators: they know the real risks.
Section vocabulary
- Occupational risks
- Risks workers are exposed to in their activity; each station has its own.
Simple example: Hakim lists those of the SME's warehouse, workshop and offices.
What it is not: a generic list copied without looking at the real stations.
Reflex: at every station, ask "what can hurt here?".
- Fall risks
- On the level (slips, trips) or at height (ladders, docks, racks) — among the most frequent and serious.
Simple example: The greasy entrance floor and the high boxes in Hakim's warehouse.
What it is not: the weekend weather, unrelated to work.
Reflex: floors, storage and guard rails checked on every visit.
- Handling / MSDs
- Carrying loads and repeated gestures causing back pain and musculoskeletal disorders, building up gradually.
Simple example: The boxes lifted from the floor in the SME's warehouse.
What it is not: a clean cut on a machine (that is mechanical).
Reflex: every repeated carry or held posture = an MSD lead to assess.
- Mechanical / electrical / chemical risks
- Machines and tools (cuts, crushing), electricity (electrocution, burns), hazardous products (toxic, corrosive, flammable).
Simple example: The unguarded saw and the solvent in Hakim's workshop.
What it is not: stress or overload (those are psychosocial risks).
Reflex: machine, electrical cabinet, product: three points on every visit.
- Psychosocial risks
- Stress, harassment, burnout — real effects although long underestimated.
Simple example: The order-office overload Hakim listens to during his visit.
What it is not: saying "it is not a real risk because it is invisible".
Reflex: listen to workload, support and recognition like any other risk.
In practice — Hands on — Spotting occupational risks
- Review the main families of risks: falls (same level / from height), manual handling/MSDs, mechanical, chemical, electrical, fire, noise/vibration, biological, traffic/road, psychosocial.
- Observe YOUR organisation job by job: which risks are present in an office? a workshop? a warehouse? a construction site? (each has its own).
- Spot the particularly FREQUENT/SERIOUS risks in your setting (often falls, manual handling, road) — priority attention.
- Do not forget often UNDERESTIMATED risks: MSDs (manual handling, repetitive movements) and psychosocial risks (stress, harassment).
Ready-to-say script — starting the visit with operators (30 sec)
"I am discovering the workshop with you, not without you. We walk together for an hour: show me what can hurt, what gets stuck, where you have already been scared. I note everything, we prioritize on return — no blame."
Say it at the start of the visit: listening posture, no inspection, no punishment.
Copy-paste template — express visit grid
DATE / PLACE: _______________ | WITH WHOM: _______________
FAMILIES SEEN (falls, MSDs, machines, chemicals, electrical, psychosocial): _______________
OBSERVATION 1 (where, what, who exposed): _______________
OBSERVATION 2: _______________ | OBSERVATION 3: _______________
PHOTOS (with consent): YES / NO | RETURN PRIORITY: _______________Very small business (under 10 employees)
The owner walks 30 minutes themselves with one employee: three observations noted in a notebook are enough to start.
Industrial SME in Algiers
Hakim plans entrance, warehouse, workshop and offices in one hour, with one operator per area who knows the real habits.
Offices / services
No workshop: screens, postures, cables on the floor, exits and mental load — same families, different faces.
Sites / travel
Add traffic, co-activity and weather to the grid: the station changes daily, the visit repeats.
✓ Best practices
- Walk before you count.
- With the operators, never without.
- Put a figure on the overall cost to convince.
✗ Common pitfalls
- Managing by stats with no visit.
- Forgetting PSR ("no visible risk").
- Visiting as an inspector, not listening.
Key takeaways
- OCCUPATIONAL RISKS are numerous and diverse: FALLS (same level / from height), MANUAL HANDLING/MSDs, MECHANICAL, CHEMICAL, ELECTRICAL, fire/explosion, noise/vibration, BIOLOGICAL, traffic/road, PSYCHOSOCIAL.
- Each ACTIVITY and each JOB has its own risks (office, workshop, construction site, warehouse, lab…): they must be identified CONCRETELY, in the field, job by job.
- Some are particularly FREQUENT and/or SERIOUS: falls, manual handling (MSDs/back pain), road risk — priority attention.
- MSDs (musculoskeletal disorders) and PSYCHOSOCIAL RISKS (stress, harassment) are MAJOR and growing issues, long underestimated. This panorama prepares risk assessment (2-1) and the single risk assessment document (1-2).
48h Challenge — apply tomorrow
Walk one hour with one operator (grid above), note 3 observations with photos if consent, and bring back 1 prioritization on return. 60 minutes is enough.
- I can name the 6 families without hesitation.
- I can explain why prevention pays (overall cost).
- I have done 1 one-hour visit with an operator.
Frequently asked questions
How do I concretely identify the risks present in my organisation or at a workstation?
Identifying risks concretely means OBSERVING the REAL work, job by job and situation by situation, using the known families of risks, the people concerned and the track record — this is the foundation of all prevention. The identification approach: (1) Break down by WORK UNIT / JOB / ACTIVITY. You do not assess "the company" as a block but each work situation: a job (reception, the production line, the store), an activity (delivery, maintenance), a location (the workshop, the warehouse, the construction site). Each has its own risks. List the work units to examine. (2) OBSERVE the REAL work IN THE FIELD. Risk shows in work as it is actually done (not only as prescribed): go on site, watch how people work, which movements, which travel, which products, which equipment, under which conditions. The field reveals risks invisible from an office. (3) Use the FAMILIES of risks (panorama) as a checklist: for each job, review — is there a fall risk? manual handling/MSD? mechanical? chemical? electrical? fire? noise? traffic? psychosocial? This checklist avoids forgetting categories. (4) LISTEN to the people concerned. Workers know their job and its dangers better than anyone: ask them ("what could injure you? when were you scared? what difficulties?"), involve them. Front-line management and staff are precious sources. (5) Analyse the TRACK RECORD. Examine PAST accidents and incidents (register, reports), "near misses", occupational diseases, absenteeism: they reveal real, recurring risks. An accident that happened signals a risk to address. (6) Consult DOCUMENTS and sources. Safety data sheets for chemical products, machine manuals, manufacturer data, sector statistics, prevention-body resources. Points of attention: (1) REAL vs prescribed work. Risks often appear in the gaps between procedure and real practice (workarounds, adaptations, emergencies) — observe what really happens. (2) UNDERESTIMATED risks. Do not forget low-visibility risks: MSDs (postures, repetitive movements, manual handling), psychosocial (stress, workload, relationships), delayed risks (chemical exposure, noise whose effects appear later). (3) ALL SITUATIONS. Think of non-routine situations: maintenance, cleaning, breakdowns, emergencies, temps/newcomers, co-activity (several companies on one site) — often riskier than routine. (4) Do not confuse hazard and risk. First identify the HAZARDS present, then you will assess the RISKS (likelihood × severity) at the assessment stage (Level 2-1). The practical method: (1) List the work units. (2) For each one, observe the field, review the families of risks, listen to workers, examine the track record and documents. (3) Note the hazards and risk situations identified (what could cause harm, and under which conditions). (4) This inventory feeds RISK ASSESSMENT and the SINGLE DOCUMENT (Levels 2-1 and 1-2). In short: identify risks concretely by breaking down by WORK UNIT/job, by OBSERVING REAL work in the field, by using the FAMILIES of risks as a checklist (falls, manual handling, mechanical, chemical, electrical, fire, noise, traffic, psychosocial), by LISTENING to the people concerned (they know their dangers), by analysing the TRACK RECORD (accidents, incidents, near misses, diseases) and by consulting DOCUMENTS (safety sheets, manuals). Watch out for real work (vs prescribed), underestimated risks (MSDs, psychosocial, delayed) and non-routine situations (maintenance, emergencies, co-activity). This inventory of hazards and risk situations is the basis of risk assessment and the single document — honest, concrete identification of risks, in the field and with workers, is the indispensable first step of any effective prevention.
Which occupational risks are the most frequent or the most underestimated, and why pay attention to them?
Some risks are particularly FREQUENT (falls, manual handling, road) and others UNDERESTIMATED (MSDs, psychosocial): knowing them lets you focus prevention where it matters most. The most FREQUENT and/or SERIOUS risks: (1) FALLS. Same-level (slips, trips on slippery, cluttered, uneven floors) and from HEIGHT (ladders, scaffolding, roofs, loading docks). They are among the MOST FREQUENT accidents (same level) and the most SERIOUS (height → serious or even fatal injuries). Treat as a priority (floors, tidiness, fall protection, guardrails). (2) MANUAL HANDLING. Carrying loads, repetitive movements, poor postures → back pain and MUSCULOSKELETAL DISORDERS (MSDs). A MAJOR cause of accidents and above all of occupational diseases and work stoppages. Very widespread across many sectors. (3) ROAD risk (business travel, commuting) — often the leading cause of FATAL work accidents in several countries. (4) MECHANICAL risks (machines, tools: cuts, crushing) in industry and crafts. The most UNDERESTIMATED risks: (1) MUSCULOSKELETAL DISORDERS (MSDs). They settle in PROGRESSIVELY (postures, repetitive movements, exertion, manual handling) and their effects (pain, lasting disability) appear over time — hence their underestimation (no "spectacular" accident, but a major health and absenteeism problem). They account for a huge share of occupational diseases. Take them very seriously (ergonomics, handling aids, organisation). (2) PSYCHOSOCIAL RISKS (PSR). Stress, overload, harassment, burnout, ill-being. Long ignored or minimised ("not a real risk"), yet with real, serious effects on health (physical and mental) and on the organisation (absenteeism, turnover, lower performance). A major and GROWING issue (Level 2-5). Hard to see and to address, hence often neglected. (3) DELAYED and INVISIBLE risks: exposure to CHEMICAL products (health effects sometimes years later), to NOISE (progressive deafness), to vibration — their consequences not being immediate, they are underestimated although they can be serious and irreversible. (4) Risks in NON-ROUTINE situations (maintenance, cleaning, breakdowns, co-activity), often less supervised than routine. Why pay attention: (1) Focus prevention where RISK is highest (likelihood × severity): acting first on frequent and/or serious risks (falls, manual handling, road) has the most impact on reducing accidents. (2) Do not neglect underestimated risks: MSDs and PSR cause enormous suffering, stoppages and costs, precisely because they are addressed late (no visible accident). Taking them seriously early avoids lasting, costly health problems. (3) Delayed risks (chemical, noise) demand particular vigilance because their effects, once established, are often irreversible — prevention must be early. (4) Adapt prevention to YOUR activity: priority risks vary by sector (construction, industry, healthcare, offices do not share the same ones) — identify yours. In short: the most FREQUENT/SERIOUS risks are FALLS (frequent same-level, serious from height), MANUAL HANDLING (MSDs, back pain), ROAD risk (often the leading cause of death at work) and MECHANICAL risks — treat as a priority. The most UNDERESTIMATED are MSDs (progressive onset, delayed effects, huge share of occupational diseases), PSYCHOSOCIAL RISKS (stress, harassment, burnout — long ignored, real and serious effects, growing issue) and DELAYED/INVISIBLE risks (chemical, noise — late and often irreversible consequences). Paying attention to them focuses prevention where risk is highest (frequent/serious) while not neglecting discreet risks with heavy consequences (MSDs, PSR, delayed). Effective prevention targets the priority risks of YOUR activity, without forgetting those you do not see coming.
Hakim discovers an unknown workshop. What first reflex?