Flame retardants, formaldehyde from flat-pack furniture, VOCs from paints, radon, and household dust.
53 chemicals in this category
Acrolein is a highly reactive, acrid aldehyde generated when vegetable oils are heated to or beyond their smoke point. It is the compound responsible for the harsh, throat-catching fumes from a burning or overheated p…
Aerosol body sprays — Lynx, Sure, Impulse, and the vast range of supermarket own-brands — deliver a mixture of hydrocarbon propellant gas, alcohol carrier, and synthetic fragrance directly onto skin in a fine mist. Th…
Aerosol body sprays, deodorants, and dry shampoos use liquefied petroleum gas (LPG) propellants — primarily butane, isobutane, and propane — to deliver product as a fine mist. These hydrocarbon gases are highly concen…
When polyunsaturated vegetable oils are heated to frying temperatures, their omega-6 linoleic acid chains oxidise and fragment to produce a complex mixture of volatile and non-volatile aldehydes — including the highly…
Ammonia is a pungent alkaline gas used as a cleaning agent in glass cleaners, multi-purpose sprays, floor polishes, and oven cleaners. While effective at cutting through grease and leaving streak-free glass surfaces, …
School art rooms concentrate volatile organic solvents from paints, varnishes, adhesives, and cleaning fluids into an enclosed space used by children for hours at a time. Toluene and xylene are the principal VOCs of c…
"Bamboo fabric" is almost universally bamboo viscose — not mechanically extracted bamboo fibre, but bamboo cellulose dissolved in highly toxic carbon disulphide (CS₂) solvent and regenerated as a synthetic fibre. Carb…
Benzene is an aromatic hydrocarbon that is a natural constituent of crude oil and a component of petrol. It is also produced during combustion processes including cigarette smoking, vehicle exhaust, and burning of woo…
Household chlorine bleach (sodium hypochlorite) is one of the most widely used domestic cleaning agents. While bleach itself is a highly reactive oxidiser, the greater long-term concern lies in the volatile byproducts…
Vehicle brakes generate fine metallic dust every time they are applied — friction between brake pads and rotors ablates microscopic metal particles from both components. Brake dust is a chemically distinctive urban ai…
Brominated flame retardants (BFRs) are a group of chemicals added to plastics in consumer electronics, printed circuit boards, and casings to slow fire spread. The most significant groups are polybrominated diphenyl e…
Carbon monoxide (CO) is a colourless, odourless, tasteless gas produced by incomplete combustion of carbon-containing fuels. It is acutely lethal at high concentrations and causes chronic health effects — including ca…
Carbon monoxide (CO) is an odourless, colourless, tasteless gas produced by incomplete combustion of carbon-containing fuels. In the domestic environment it is generated by gas boilers, gas cookers, gas fires, paraffi…
Most clumping cat litters are made from sodium bentonite clay or diatomaceous earth, and when poured, scooped, or disturbed, they release a dust cloud containing fine respirable particles including crystalline silica …
Chlorinated solvents — primarily dichloromethane (DCM, methylene chloride), trichloroethylene (TCE), and perchloroethylene (PERC) — are powerful degreasers used in paint strippers, oven cleaners, stain removers, and e…
Schools are cleaned daily using commercial-grade products that differ significantly from domestic equivalents in both concentration and application volume. Caretaking staff apply disinfectants, floor cleaners, toilet …
Correction fluids (white-out), permanent markers, whiteboard markers, and highlighters are everyday classroom items that collectively contribute a significant VOC load to school indoor air. While individual items seem…
D-Limonene is a naturally occurring terpene derived from citrus peel, widely used in "natural" and "eco" cleaning products as a solvent, fragrance, and degreaser. Despite its natural origin and pleasant smell, it is a…
Di(2-ethylhexyl) phthalate (DEHP) is the most widely studied member of the phthalate family — a group of plasticisers that make PVC soft and flexible. It is classified as a reproductive toxicant Category 1B and a subs…
Dichloromethane (DCM, methylene chloride) is the most effective solvent paint stripper available — it dissolves virtually any coating in minutes and requires no heat or mechanical effort. It was the active ingredient …
Diesel exhaust particles are the dominant source of fine particulate matter (PM2.5) in UK urban air. Each particle is a carbon-rich core formed during incomplete diesel combustion, coated with dozens of adsorbed organ…
Expanding polyurethane foam — sold under brands including Soudal, Würth, and Great Stuff — is used by DIY renovators to fill gaps around pipes, window frames, loft hatches, and structural voids. The "A" component of t…
UK fire safety regulations require children's nightwear to meet strict flammability standards — garments must resist ignition or self-extinguish, a requirement met either by inherently flame-resistant fibres (polyeste…
Formaldehyde is an IARC Group 1 confirmed human carcinogen present in many environments — from flat-pack furniture off-gassing to keratin hair straightening treatments. In personal care products it appears directly or…
The desks, chairs, shelving, and cupboards in most UK classrooms are constructed from medium-density fibreboard (MDF) or particleboard bonded with urea-formaldehyde (UF) resins. These resins release formaldehyde gas c…
Crease-resistant, easy-care, wrinkle-free, and permanent-press cotton textiles owe their performance to N-methylol resin finishes — compounds that cross-link cellulose fibres to prevent wrinkle formation. These resins…
Glycol ethers are a family of solvents widely used in cleaning products, paints, varnishes, inks, cosmetics, and pharmaceutical formulations. They fall into two groups: the E-series (ethylene glycol-based, including 2…
Beyond the well-known polybrominated diphenyl ethers (PBDEs — already profiled), electronic device casings contain a range of additional halogenated flame retardants — most prominently tetrabromobisphenol A (TBBPA), h…
Dogs and cats act as highly efficient vectors for transferring lawn treatment chemicals from outdoor treated surfaces into the home. Pets walk on recently treated grass, accumulate herbicide and pesticide residues on …
Lead was used as a pigment and drying agent in paint for thousands of years — it produced brilliant whites and yellows and made paint more durable and weatherproof. UK domestic paint contained lead until 1992 when it …
Mercury sealed inside fluorescent tubes, energy-saving bulbs, and LCD backlights poses a significant contamination and inhalation risk when broken or improperly disposed of, with particular hazard in enclosed spaces a…
The distinctive "new car smell" is a complex mixture of volatile organic compounds off-gassing from the adhesives, plastics, vinyl, foam, carpeting, sealants, and coatings that comprise a modern car interior. Measurem…
Nitrogen dioxide (NO₂) is a reddish-brown gas produced by combustion — primarily from vehicle engines, power stations, and gas appliances. It is one of a family of nitrogen oxides (NOₓ) regulated as major air pollutan…
Household flea control extends beyond treating the pet to treating the home environment — carpets, skirting boards, pet bedding, and upholstered furniture where flea larvae and pupae persist. Household flea sprays des…
Polybrominated diphenyl ethers (PBDEs) are a family of brominated flame retardants added to foam furniture, mattresses, carpets, electronics, and vehicle components to slow fire spread. Banned or phased out across the…
Perchloroethylene (PERC, tetrachloroethylene) is the dominant solvent used in dry cleaning — an estimated 80% of UK dry cleaners still use PERC as their primary cleaning agent. PERC dissolves grease, oils, and many or…
Veterinary flea and tick treatments for pets are among the most widely used pesticide products in UK homes. Products fall into two main categories: pyrethroids (particularly permethrin in dog treatments — acutely leth…
PFAS are a family of over 12,000 synthetic chemicals defined by their extremely strong carbon-fluorine bonds — the strongest in organic chemistry. This is why they do not break down: in the environment, or in the huma…
Durable water repellent (DWR) treatments — sold as sprays, wash-in liquids, and factory-applied coatings for waterproof jackets, boots, tents, and outdoor gear — have historically been based on long-chain PFAS (C8 flu…
School photocopiers, laser printers, and inkjet printers collectively emit a cocktail of volatile organic compounds, ultrafine particles, and ozone that can significantly degrade indoor air quality in staff rooms, pri…
Phthalates are a family of plasticisers and fragrance fixatives found in an enormous range of products — from PVC flooring to nail varnish to the fragrance in shampoo. They are among the most extensively studied endoc…
Phthalates — particularly DEHP, DBP, and DINP — are widely used as plasticisers in PVC cable insulation and sheathing, making it flexible for the extreme bending and heat cycles cables endure. They are also found in s…
Fabric conditioners (softeners) achieve their softening effect by depositing a thin layer of quaternary ammonium compounds (quats) onto fibre surfaces during the rinse cycle — these positively charged molecules adsorb…
Radon is a naturally occurring radioactive gas produced by the decay of uranium and radium in rocks and soil. It is colourless, odourless, and tasteless — entirely undetectable without a test. Radon seeps from the gro…
Every time a room is painted or wood is varnished with solvent-based products, a significant quantity of volatile organic compounds is released into the indoor air. Solvent-based gloss paints, oil-based undercoats, va…
Styrene is a colourless, oily liquid with a distinctive sweet smell used to manufacture polystyrene plastics, synthetic rubber, resins, and fibreglass. It is classified as a possible human carcinogen (IARC Group 2B) a…
The ingredient declaration "fragrance" or "parfum" is a legally protected trade secret that can conceal up to several hundred individual chemicals under a single listing. The EU requires disclosure of 26 known allerge…
When terpene compounds from scented cleaning products, air fresheners, and essential oil diffusers react with ozone inside the home, they generate a cocktail of secondary pollutants including formaldehyde, acetaldehyd…
The familiar "swimming pool smell" is not chlorine — it is trichloramine (nitrogen trichloride, NCl₃), a volatile chloramine formed when pool chlorine reacts with nitrogen-containing compounds in human body fluids: ur…
Hotel rooms are a concentrated source of indoor VOC exposure — they are routinely cleaned with multiple chemical products, sprayed with room fresheners and fabric disinfectants between guests, and contain furniture, c…
The distinctive smell of new electronic devices — new phone, new laptop, new television — is produced by a complex mixture of volatile organic compounds off-gassing from plastics, adhesives, flame retardants, circuit …
Volatile organic compounds (VOCs) are carbon-based chemicals that evaporate readily at room temperature, releasing vapours into indoor air. Paints, varnishes, wood stains, adhesives, and new furniture are the primary …
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