Health Effects of Exposure to Indoor Air Pollutants
A study in the UK has linked exposure to indoor air pollutants, such as cleaning chemicals in the home, to breast cancer and other associated health complaints. According to the WHO guidelines for indoor air quality, daily exposure to air fresheners is linked to 10% more headaches compared to less or no exposure at all. In addition, the occurrence of depression was 13% higher among those who use air fresheners daily, compared to those who hardly use them in the home.
IAQ Consultants Singapore has one basic but important aim at the core of their business: “To provide a uniform indoor air quality testing service to protect individuals from the adverse health effects of indoor air pollution.”
Moreover, a study by the Toxic Substances Strategy Committee indicated that 80-90% of cancers are triggered by exposure to substances in the environment. In Singapore, most people are spending an increasing amount of time indoors, which means that they are exposed to pollutants on a daily and continuous basis. There are indoor air pollutants that are generated outdoors and then penetrate to the indoor environment. Meanwhile, there are pollutants that are produced indoors, for example, as a result of air cooling, cooking, and cleaning, among others. IAQ Consultants, Singapore’s premier environmental health specialist, deals with the testing of indoor air pollutants and their remediation for your home or office. We work with other specialists and authorities involved in the design and use of buildings, indoor materials and products to ensure that our Singapore green economy is as green indoors as it is outdoors. Some of the most common indoor pollutants and their source are as follows:
Chemical Source 
Acetone Paint, coatings, finishers, paint remover, thinner, caulking, nail polish remover, drying agent
Benzene Industrial solvent, plastics, synthetic rubber, and dyes
1,3-butadiene Nylon, tyres, synthetic rubber
Butyl Acetate Acoustic ceiling tile, linoleum, caulking compound
1,4-Dichlorobenzene Carpet, moth crystals, air fresheners
Ethyl Acetate Solvents, nail varnish removers, perfumes
Ethyl Benzene Plastics, polystyrene
Ethylene Glycol Anti-freeze, often used in cars
Formaldehyde Preservation, disinfectants, solvents, photography processing
Isopropoanol Solvent, cleaner, usually for electronic products
Methylene chloride Solvent, paint stripper, decreaser, aerosol spray propellants
Nonanal Flavours and perfume
4-Phenylcyclohexene (4-PC) Carpet, paint
Terpenes (limonene, a-pinene) Deodorizers, cleaning agents, polishes, fabrics, fabric softener, cigarettes
Tetrachloroethylene Solvent in dry cleaning, degreaser, paint stripper
Toluene Paint thinners, solvents
Trichloroethylene Metal cleaning and speciality adhesives
Xylene Solvent in printing, rubber and leather industries
All the chemicals listed in this table are considered sensory irritators, and even limited exposure in the indoor air can cause serious health problems.

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