{"id":28781,"date":"2024-03-29T20:18:24","date_gmt":"2024-03-29T19:18:24","guid":{"rendered":"https:\/\/www.carlessuria.com\/carbon-dioxide\/"},"modified":"2024-05-25T10:09:42","modified_gmt":"2024-05-25T09:09:42","slug":"carbon-dioxide","status":"publish","type":"page","link":"https:\/\/www.carlessuria.com\/en\/indoor-toxicity\/carbon-dioxide\/","title":{"rendered":"CARBON DIOXIDE"},"content":{"rendered":"\t\t
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CARBON DIOXIDE CO2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Carbon dioxide (CO2<\/sub>) is an organic gas that consists of two oxygen atoms and one carbon atom.<\/p>

It is a natural compound that facilitates life on Earth. It provides the carbon needed by plants for photosynthesis and releases the oxygen (O2<\/sub>) that aerobic organisms, such as mammals, breathe.<\/p>

It returns to the air naturally. CO2<\/sub>\u00a0is generated by respiration of aerobic organisms, decomposition of animals and plants, or burning of forests.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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CO2 POLLUTION<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Humans have upset the balance. The burning of fossil fuels for energy, industrial processes, the burning of waste, etc. is steadily increasing the amount of carbon dioxide in the atmosphere: since 1800, the concentration of the gas has risen from 280 ppm (parts per million) to 420 ppm today.<\/p>

It is a greenhouse gas, it retains heat. By increasing its presence in the atmosphere, it is causing global warming, better known as climate change, leading to heat waves and flooding.<\/p>

In addition, the oceans absorb part of this additional CO2<\/sub>\u00a0and in this process acidify, lowering their pH. The main consequence of this is the destruction of coral reefs.<\/p>

Carbon dioxide is also now more present in our homes. Houses are more airtight to save energy, but this makes it more difficult for CO2 <\/sub>generated by human respiration and combustion in kitchens to escape. In turn, the amount of oxygen present decreases.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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HEALTH EFFECTS<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Poor ventilation is a common cause of excessive carbon dioxide concentrations in indoor spaces. It is related to occupants’ health, comfort and mental performance.<\/p>

At 1000 ppm and above, it decreases cognitive abilities causing fatigue and loss of performance (see study<\/a>). These concentrations are usually easily exceeded after only a few hours in an enclosed dwelling.<\/p>

Above 5000ppm, headaches, sleep disruption, emotional irritation and mental sluggishness are common (see study<\/a>). It is difficult to achieve these values in homes and offices, but it cannot be ruled out in living spaces that are never ventilated and have airtight enclosures.<\/p>

Animal studies have shown that at concentrations of 5000ppm, after only eight weeks of exposure, renal calcification and bone loss occur (see study<\/a>).<\/p>

Fortunately, asphyxiation does not occur until 70,000ppm.<\/p>

Indoor air renewal is extremely important, as well as reducing CO2 and increasing oxygen, it allows formaldehyde<\/a> and VOCs<\/a> from paints, furniture and cleaning products to escape to the outside.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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