تعبير
عن البيئه بالانجليزي قصير
تعبير عن البيئه بالانجليزي قصير
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When outdoor
air quality is poor or a smog warning (yellowish mist composed of gas and
particulates) is in effect, it means there is a high amount of pollutants in
the air.
The main
pollutants of outdoor air are:
fine
particles (PM2.5). These are tiny particles that can penetrate deep into the
respiratory system;
ozone (O3);
sulfur
dioxide (SO2);
nitrogen
dioxide (NO2);
carbon
monoxide (CO).
These
pollutants come from among others:
motor
vehicles;
industrial
processes;
heating
(oil, wood, propane, etc.);
wildfires.
Air
pollutants can affect the health of the entire population. Some people,
however, are more sensitive than others to pollutants and are more likely to
feel the adverse effects.
sYMPTOMS
People who
breathe polluted air can have a variety of symptoms. These vary according to
the sensitivity of each person to air pollution. In the short term, the main
symptoms are:
eye
irritation;
wheezing or
difficulty breathing
irritation
and inflammation of the respiratory tract (coughing);
increased
shortness of breath, especially during physical activity.
The severity
of these symptoms depends in particular on the state of health of the person as
well as the level of pollution to which it is exposed. Misuse of some medicines
may also help to make these symptoms appear and make them worse.
It is
important to note that the symptoms experienced may also be caused by factors
other than air pollution such as:
the
overwhelming heat;
moisture;
viruses;
pollen, such
as ragweed.
When to
consult
You need to
see a doctor quickly if you have any of the following symptoms:
feeling of
tightness or tightness in the chest
pain felt
during a deep breath;
difficulty
breathing without physical effort
If you have
questions about your health, call Info-Santé 811.
Complications
A person who
regularly breathes polluted air for several years can have some health
problems:
chronic lung
disease, such as chronic bronchitis;
cardiovascular
disease, that is, heart disease and blood vessels;
lung cancer.
Breathing
polluted air can also worsen the symptoms of people who already have chronic
diseases, especially respiratory or heart diseases. In rare cases, this can
lead to hospitalization or the premature death of the person.
Risk factors
The risks of
experiencing discomfort caused by air pollution increase:
when the
quality of the outside air is bad;
when a smog
warning is in effect;
when the
heat is overwhelming;
during
intense physical activity or long-term exits, while people breathe a lot of
air.
