POLLUTION

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POLLUTION
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• There are many kinds of pollution (water, soil,
  air and acoustic pollution) and all damage our
  world.

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• The one we will now examine is AIR POLLUTION,
  because it has recently been one of the main
  problems in our region. This is a photo taken by
  Istituto di Fisica dell'Atmosfera - CNR.

• The red circle, represents a part of Lombardia,
  the place where we live, and it is covered by a
  blanket of smog.

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• There are natural air pollutants and man- made
  air pollutants. Volcanoes are natural pollutants
  because they let off a smoke- like substance
  which contains carbon dioxide and sulphur. Forest
  fires are also natural pollutants because the
  smoke goes up into the air we breathe. Power
  plants are an example of man- made pollutants.
  They release harmful gases into the air. Spray
  products use a type of gas (CFC) which is harmful
  for the atmosphere. Using CFC-free products helps
  minimize air pollution.

• Air pollution is mainly caused by carbon monoxide
  and sulphur dioxide, caused by the burning of
  coal, oil, and other natural gases. Air pollution
  affects trees, plants, flowers, lakes, animals,
  buildings, and of course people.

• Air pollution causes smog, acid rain and can
  damage vegetation. It can cause minor health
  problems such as soar throat and headache. It can
  also cause serious health problems such as
  blindness, lung cancer, and even death.

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• The measurement of the quality of air is useful
  to protect the health of population and the
  ecosystem.
• Emission inventory for Lombardy is based on the
  INEMAR database (EMission INventory in AiR), an
  archive that allows to estimate emissions to a
  municipality level for different pollutants,
  activities and fuels.

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GROUND LEVEL OZONE PRECURSORS
ACIDIFYING
Ground level ozone precursors are NOx,NMVOC, CO
and CH4
Acidifying substances are SO2, NOx and NH3
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• GAS SERRA

PM10
Greenhouse gases are CO2, CH4 and N2O
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STATISTICAL SURVEY
LODI

• These are the results of statistical surveys made
  at Codogno (near Casalpusterlengo) and Lodi.

CODOGNO
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POLLUTANTS

• PM10 (particulate matter with a mass which is
  less than 10 micron) they are partly produced by
  anthropic or natural processes and partly formed
  from other pollutants emissions (SO2, NOx, NH3).

• SO2 it forms as a result of fossil fuels
  combustion (coal and oil contain sulphur as an
  impurity petrol and diesel fuel also contain
  sulphur but in a lower percentage).

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P O L L U T A N T S

• CO (Carbon monoxide) it forms as a result of
  incomplete combustion processes
• (domestic heating, car traffic and industrial
  processes).

• NO2 (Nitrogen dioxide) it is a suffocating gas,
  colourless and odourless produced by industrial
  plant, heating, and car exhausts.

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POLLUTANTS

• O3 (Ozone) it is a substance not directly
  emitted into the air, but it forms later as a
  result of complex chemical reactions with sun
  radiations and high temperatures.

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WORK WRITE BY AGNELLI ERIKA
and FOSCHI ELISA