1,380 articles
Practical occupational health, safety, and environment guidance from the field.
PPE is one of the most visible parts of workplace safety. Hard hats, gloves, goggles, hearing protection and respirators are easy to see during a site walk. What is less visible is whether the equipment was selected properly, fits the…
A risk assessment can be legally compliant on paper and still be almost invisible in the way work is carried out. That usually happens when the document becomes the end product rather than part of the decision-making process. It is…
By Waheed Riaz — an experienced Safety Supervisor in the chemical industry. Risk analysis is important because it turns evidence about hazards and uncertainty into a clear basis for action. It shows what needs attention, which controls may fit, who…
TL;DR Around 1 million cases and nearly 60,000 deaths occur worldwide each year, most in tropical regions (CDC Yellow Book, 2024). England averaged 57 laboratory-confirmed and 89 probable cases a year from 2020 to 2023, peaking in summer and autumn…
TL;DR If the breaker is not confirmed open, do not rack it — racking a closed breaker onto a live bus is a leading arc flash trigger. If the equipment can be isolated upstream, rack it dead — an electrically…
TL;DR — Reservoir Safety Myths vs Reality Myth: A reservoir is just a big lake. Reality: it hides intake currents, steep engineered banks and water cold enough to disable a swimmer within seconds. Myth: Strong swimmers are safe. Reality: cold…
TL;DR — Transformer Safety by the Numbers ~150 electrical fatalities a year. That's the US average from contact with electricity across all occupations (ESFI, 2025–2026 compilation). 74% of electrical deaths hit non-electrical workers. Of 1,940 electrical workplace fatalities from 2011–2023,…
Nursing demands a commitment to lifelong learning because patient needs, healthcare technology, and treatment standards continue to evolve. Many registered nurses pursue additional education while remaining active in clinical practice, allowing them to strengthen existing abilities without stepping away from…
TL;DR — The Numbers That Define the Hazard 1.0 µg/m³ — NIOSH recommended exposure limit for respirable carbon nanotubes and nanofibres, as an 8-hour time-weighted average (NIOSH CIB 65, 2013). 0.3 mg/m³ — NIOSH REL for nanoscale titanium dioxide, classed…
TL;DR If you're a large quantity generator (LQG), the on-site clock is 90 days, with no quantity cap but a dated start required on every container (EPA, 40 CFR 262.17). If you're a small quantity generator (SQG), you get 180…
TL;DR If your business produces, stores, moves or discards controlled waste, then you are a legal "waste holder" and the duty of care applies — there is no exemption for small firms. If you hand waste to a carrier, then…
TL;DR If your waste is non-hazardous controlled waste, a waste transfer note must be completed and signed by both parties before the waste is moved. If your waste is hazardous, a consignment note is required instead of a transfer note…
TL;DR Off-site moves are dual-regulated: hazardous waste transportation answers to the EPA (40 CFR 263) and US DOT (49 CFR) at the same time. If you package it, the waste must go in UN performance-oriented packaging authorized for its specific…
TL;DR Match PPE to the saw, not the season. Cut-resistant leg protection, a helmet with visor and ear defence, gloves, and protective boots are the baseline for any chainsaw work. Certified leg protection stops the chain by jamming it —…
TL;DR Inorganic arsenic in CCA carries an OSHA airborne limit of 10 µg/m³ (8-hour TWA), with medical surveillance triggered at half that level (OSHA, 29 CFR 1910.1018). Hexavalent chromium, also in CCA, sits at 5 µg/m³ (8-hour TWA) — among…
TL;DR 3 mg/m³ hardwood, 5 mg/m³ softwood — the UK workplace exposure limits over an 8-hour average; for mixtures, the hardwood 3 mg/m³ limit applies to all wood dust present (HSE, EH40/2005). 2 mg/m³ — the EU binding limit for…
TL;DR Around 2,800 amputations a year come from table-saw blade contact in the US alone, out of roughly 26,500 emergency-room injuries in 2017 there were an estimated 26,500 table saw blade-contact injuries treated in emergency departments, including about 2,800 amputations…
TL;DR Treat firing as a hazard step, not just a shaping step — kiln heat converts quartz in clay bodies into cristobalite, a more damaging form of crystalline silica. Control dust at the dry moments — weighing, mixing, glaze handling,…
TL;DR — The numbers that frame the risk Engineered nanomaterials measure 1–100 nanometres — small enough that the same substance can behave very differently than its bulk form (NIOSH, 2009). NIOSH recommends carbon nanotube and nanofibre exposure stay below 1.0…
TL;DR If your laser is Class 1 or 1M → no area warning sign is normally required, though the manufacturer's product labels still apply. If your laser is Class 2, 2M, or 3R → post a CAUTION sign where exposure…
TL;DR Assess every operating mode, not just normal use: Alignment, setup, and servicing routinely expose people to the open beam — your assessment must cover them all. The class label is the starting point, not the assessment: Classification describes the…
TL;DR Match the glove, don't just wear one: glass handling usually calls for mid-to-high cut protection — around ANSI A4–A5, or an equivalent EN 388 level — with a grip coating. Protect against fragments, not dust alone: side-shielded safety glasses…
TL;DR The clamp is the killer. Closing mould halves can amputate a hand in a single cycle; the operator's gate and its interlocks are the primary defence, not PPE. Interlocks are not isolation. Every serious maintenance injury traces back to…
Neither sitting nor standing is healthy in excess. Prolonged sitting raises the risk of heart disease, type 2 diabetes and back pain, while prolonged standing drives leg fatigue, varicose veins and other circulatory problems. For standing vs sitting at work,…
TL;DR Myth: Arc flash is the main way substations kill. Reality: contact with and proximity to energized parts cause far more electrical deaths; arc flash is a small share of fatalities but produces catastrophic, life-altering burns (ESFI, 2026). Myth: Being…
TL;DR Water main repair safety starts before the dig. Confirm every buried service through a utility locate; plans alone are never enough. Shore or slope every entry. US rules require a protective system at five feet, but disturbed soil around…
TL;DR — Myth vs Reality Myth: The smell warns you in time. Reality: Hydrogen sulfide deadens the sense of smell at high concentrations, so the odor often disappears just as the gas turns lethal. Myth: The real danger is dirt…
TL;DR Segregate at the point of use. Correct classification at the moment waste is created sets its cost, carbon footprint and safety — nothing downstream fixes a mis-sorted bin. Match each waste type to its stream. Infectious, sharps, pharmaceutical, cytotoxic,…
TL;DR — the numbers that anchor every decision: ≤25 Ω — the NEC value for a single made electrode, and the most misread figure in the field. It is not a universal system target (NFPA 70, 2023 edition, US). 1–5…
TL;DR Define what counts as a change. Any alteration to equipment, chemicals, technology, procedures, or staffing — but not a genuine replacement in kind. Anchor it in the right rule. OSHA PSM and EPA RMP mandate written change control; ISO…
Every safety category is listed in the A–Z directory.