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Pollution and toxic substances in indoor ambients Gas Ozone (O3) Poisoning unstable gas which has a penetrating odour, Ozone is produced by electrical engine equiments and by UV rays polluted air exposures. It rapidly decays in oxygen but even small amounts can cause eyes, nose and throat irritations and difficulties to the breathing apparatus. Try to reduce using electrical equipment especially in bedrooms. Radon (Rn) Colourless, odourless, non-reactive gas. Radon is eight times heavier than air therefore it stagnates in indoor ambients. It is produced by the decay of uranium, thorium, and radium which already exists in nature. All particles produced by this gas can cause the death of cells or worse than that their damage which lead to cancerous phenomenon. Its presence is highly concentrated in geological areas, and it can be found in houses within the presence of certain builder materials, natural gas, water and dusts. If you need information about the concentration of Radon, you better contact the Health and Social Security authorities. Any doubt can be sorted out by doing a particular measuring surveyed by an environment expert. In
case you found radioactivity , be sure to seal cracks and try to improve
outward ventilation. Burning gas Carbonic monoxide Dangerous poisoning gas, colourless and odourless, Carbonic Monoxide is produced by partial combustion of gas by the smoke of wood, coal, tobacco cars emissions. CO bins with haemoglobin in blood reducing the capability to bring oxygen to tissues., and causes headaches, nausea and vertigo. Keep every equipment in perfect conditions, assuring outward ventilation. Try to replace gas boilers with a sealed firebox. Oxide and monoxide nitrogen(NO-NO2) Toxic gasses with a strong smell, they’re produced by partial combustion of gas. In association with sulphur, they can cause acid rains and together with HIGH GAS they cause photochemical pollution. They cause inflammations to the breathing apparatus and to mucous membranes. Concentrated and long-term exposure can cause obstructing processes to bronchi till lung oedema. The cautions are he same explained in carbonic monoxide. Sulphur dioxide(SO2) Stinging gas which lies in the smoke of coal and wood, produced by heating equipments which use kerosene, oil and some natural gasses. It’s responsible for urban pollution, and it’s one of the causes of acid rain. It’s rarely present in high and consequently dangerous quantities, but it can worsen breathing difficulties. Carbonic dioxide(CO2) Colour
less and odourless gas. It’s produced by the combustion of gas cylinders
usually adopted in heating equipments. It’s responsible for stuffy air
in rooms scarcely ventilated. Prolonged exposures to Sulphur Dioxide can
damage central nervous system slowing down reactions. Flying organic compounds Formaldehyde(HCHO) Binding
and preserving substance which has a penetrating odour. In ambient
temperature it releases toxic steams which pollute air. It’s widely used
as a binder and glue for wood and plastic materials, as a fixer for paper
product, carpets and clothes. We can find trace of it even in disinfectant,
deodorants, detergents and cosmetics. You can find it in the sub-products
of equipments for cooking and heating and tobacco smoke. L’ISFU, usually
adopted in the mid ‘70es, it’s particularly dangerous. They
are composed by hydrocarbon and chlorine, which form the basis of many
chemical synthetic substances. They can be found in detergents, deodorants
and polishing products. They are the most toxic and persistent compounds.
They include PCB, which is cancerous. the chloride of polyvinyl (PVC)
which is a plastic materials which can contaminate food, chloroform and
chlorammine which are both highly toxic gas. The chlorammine get free when
bleach and ammonia based detergents get together. Other danger compounds
are: soluble ammonia, turpentine, moth-balls, liquid bleach, aromatic
hydrocarbons in general, aldehyde, terpene, alkaline. Phenols
(or phenol acid) are polluting caustic substances which may be found in
disinfectants, plastic materials, tobacco smoke, insecticides,
weed-killers, fungus-killers, resins and pesticida. Particles Asbestos It's
a dangerous mineral fibre existing in nature which is extracted by
magnesium silicate. As it is composed by impalpable micro-fibres, they
remain suspended in air before falling to the ground. Its use is forbidden
by the EEC since 1993. Asbestos fibres get absorbed by mucous membranes,
and they produce inflammation which can bring to cancerous phenomenon.
Therefore it's necessary to verify building materials and eventual removal
or decontamination must be left to a specialised private institution. Building mineral fibres They're obtained by processing silicate and they appear like flexible fibres that can be woven. We can find them in commerce as loose wool, felt, panels, etc, generally adopted as audio-thermal insulating materials. They are less dangerous than Asbestos, but in the long run, they produce more or less the same effects. There's no regulation concerning their use but it's absolutely necessary to avoid using freely these materials; it's better to seal them in apposite wrappers.
These are formed by mineral, vegetal animal fragments combined with combustion residues, pollens, moulds, acarus, bacteria, and virus. All these elements can cause allergies or inflammations to the breathing apparatus, skin and mucous membranes(for example rhinitis, sinusitis, bronchitis, asthma, conjunctivitis) and infective syndrome ( for example cold, flu, lung inflammations and exanthematous diseases. Moulds, acarus, and bacteria usually born in humid places and where there are dust and biological residues. It's therefore recommended to use transpirant building materials (which do not retain humidity) and natural fibres ( which do not accumulate dust). It's better to reduce the presence of dust-absorbing furnishings such as curtains, carpets, moquettes, and open bookcases. In case you have got an air-condition equipment you better be sure to do periodical checks of the dehumidifying box. Obviously the first rule is to keep every place clean and ventilated. Add this site to your favorites (add bookmark): Ctrl + D
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