Chemistry

Air and health


The air of big cities is very polluted. It is full of toxic gases and soot. Generally, in beach and forest regions, there is no pollution, ie the air is pure.

This pollution that happens causes serious damage to health. Some diseases are transmitted through microorganisms that are in the air. Viruses and bacteria, which are microorganisms, transmit disease through the air.

We must take some basic precautions to avoid contamination:

- Always wash glasses, cutlery and towels before using them;
- always wash your hands well;
- take vaccines.

Bacteria

Bacteria can transmit diseases through the air, such as tuberculosis and meningitis. There is also pneumonia, diphtheria and pertussis.

THE tuberculosis It is caused by Koch's bacillus, which attacks humans and other animals. It is contagious and can manifest in various organs of the body. The most common is pulmonary tuberculosis.

The bacillus passes from person to person through coughing, which goes into the air and contaminates another person. Or by contact with clothing, cutlery and other contaminated objects, so the infected person should use everything separately and well sterilized.

Its symptoms are not noticed until months after the bacteria are installed in the body. It is very confused with malaise. Or a simple cold. As the disease progresses, the coughs begin with phlegm, fever, pallor, lack of appetite, weight loss and consequently general weakness.

If left untreated, it can cause lung damage (in the case of pulmonary tuberculosis) until it is completely destroyed. This disease can be cured. By means of radiographs, it is possible to detect the disease. Prevention is done through the BCG vaccine.

THE meningococcal meningitis It is a disease that attacks the meninges, which are membranes that protect the central nervous system. It is caused by bacteria. Neisseria meningitidis. Its symptoms are very severe headache, fever, vomiting and neck pain.

It must be fought early in its early stages. The person who has this disease must be isolated and hospitalized because it can be transmitted by air to other people. Contagion occurs through the airways.
Prevention is done through vaccines.

Virus

The diseases caused by viruses are viruses. They are usually avoided with vaccines and through good nutrition. These can be flu, mumps, polio and measles.

THE the flu It is the most common virus. It is contagious and causes disturbances in the respiratory tract. It causes fever, malaise, headaches and backache. If not well cured, it can cause other, more serious illnesses such as pneumonia and tuberculosis. To combat the disease, we must:

- rest;
- drink fluids and juices with vitamin C to strengthen the body's defenses;
- use a tissue when coughing or sneezing so as not to contaminate other people.

THE mumps It is a disease that can be transmitted by air and also by contaminated objects. The infected person has swelling underneath and in front of the ears. If this virus reaches the ovary or testes, the person may become sterile (will not be able to have children).

THE polio It is known as infantile paralysis. It can be acquired by air and also by contaminated objects and food. The infected person may be physically disabled. Large vaccination campaigns were made against this disease and today it practically no longer exists in Brazil.

O measles enters the airways and spreads through the body. Its symptoms are fever, cough, redness all over the body. This disease mainly affects children. There are measles vaccines.