Smog is air pollution created by a combination of emissions from human activities like burning fuels and unfavorable weather like fog. It contains harmful substances that can negatively impact human health. There are two main types of smog: London smog, which contains sulfur dioxide and nitrogen oxides and forms in colder weather; and Los Angeles smog, which forms in subtropical summer heat from vehicle emissions and can include ozone. Breathing smog has been linked to reduced life expectancy and increased risk of respiratory diseases, heart disease, cancer and other illnesses. It is most severe in dense, industrial cities.

1. Smog

2. Smog is nothing but air pollution. Smog is
in fact a mixture created as a result of air
pollution resulting from our activities and
unfavorable weather phenomena (mainly
fog). Colloquially, smog is a type of cloud
that hovers over a city or village,
especially in autumn and winter.

3. The causes of
smog
• burning rubbish in furnaces,
• exhaust fumes of large
factories,
• burning coal in furnaces,
• car exhaust fumes.

4. The effects of
inhaling smog
• shortening the length and quality of
life
• increased risk of developing
respiratory diseases,
• increased risk of cardiovascular
disease,
• increased risk of developing
diseases of the nervous system,
• increased risk of diseases such as
cancer,
• increased risk of pregnancy
pathology

5. two
types of
smog
London smog Los angeles smog
which includes harmful
substances such as sulfur
dioxide, nitrogen oxides, soot
and dust. This type of smog
occurs in Poland in the
autumn-winter period.
formed in summer in subtropical
zones, where the reaction takes
place, and from oxides of
carbon, nitrogen and
hydrocarbons, nitrates of acetyl
peroxide, aldehydes and ozone
are formed.

6. Some facts
• The greatest amount of smog occurs in densely populated cities, in Poland it
concerns, among others, Warsaw or Krakow. The development of smog is
fostered by traffic jams, and most of them appear in large cities. As a result,
dangerous dust from car exhausts gets into the atmosphere, and passersby have
to inhale it.
• In the most industrialized cities of China, such as Beijing, wearing an anti-smog
mask for children and adults is a natural activity. It happens that lessons are
canceled for safety reasons. On such days, visibility can be limited to ten meters!
It should be added that China has been trying to reduce exhaust emissions for
several years, and at the moment it is allocating the largest funds from all
countries to improve air quality.

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