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Pollution

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Theofanis Mavropoulos

on 5 January 2015

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Transcript of Pollution

Pollution
Environmental pollution is directly linked with the development of technology and science. The development and the progress of science besides significant benefits to mankind also has adverse on the environment and conseqently on human health, ("the price of evolution").
The price of evo
Increasingly in recent years we talk about environmental pollution. It's not often fully understood what environmental pollution is, how it is caused, if there are ways to deal with it and what the effects on our health are.
Environmental Pollution
The good, the bad and the ugly
Industrial revolution urban nightmare
The problem is taking alarming proportions especially in large urban centers. To indicate this, it is mentioned that 60,000 deaths every year in European towns and 3,000,000 worldwide are due to the long term exposure to air pollutants (from the report of the European Agency for the Environment).
But what do we mean by environmental pollution?
By environmental pollution we mean every environmental condition that has adverse effects on human health. It depends on three factors:
1. pollution sources (type and amount of pollutants)
2. meteorological conditions and
3. topography of the area.
The interaction of these factors can favor the concentration of pollutants or their removal.

What are the sources of pollution?
The pollution sources fall into two categories and are:
(a)
anthropogenic
, those due to human activity (cars, heating, industry, pesticides, sprays, etc.)
(b)
natural
, namely those due to physical activity (volcanoes, electric shocks etc.)

What is air pollution?
Air pollution is the introduction of chemicals, suspended solids or organisms in the air that cause health problems to humans or other organisms. Air pollution can also cause degradation of environmental quality.
Primary and secondary air pollutants
Primary pollutants are emitted directly into the air.
- Examples: carbon monoxide (CO), nitrogen oxides (NO2), sulfur oxides (SO2), suspended solids and hydrocarbons
Secondary pollutants are created in the air by reactions between primary pollutants.
- Examples: photochemical smog, ozone, acid rain
The basin of Athens is a classic example of air pollution which started by main pollutants SO2 and smoke and evolved into photochemical smog due to the increased number of cars. The non-photochemical pollution in the 80’s decreased significantly by using fuels with reduced sulfur and lead.

Areas of Ptolemais Kozani and Florina also affected by air pollution which exceeds the limits, as the head of the research program Associate Professor of the Laboratory of Atmospheric Physics, Department of Physics AUTH mentioned.
Ptolemais Power Plant
Kozani Power Plant
Pollution is caused by the activity of Electricity Power Plant by 55% to 60% and in particular by the operation of mines and steam power stations. The head of the research program particularly emphasized the fumigation, a particular phenomenon observed in the early morning hours when large amounts of cloud gather in the atmosphere.
Pollution of soil and water
The term "pollution" of soil refers to the reduced ability of the soil ecosystem to perform its basic functions, as a result of the deposition of organic or inorganic substances. The various chemicals that cause soil contamination can come either from various physical processes (physical dirt), or can be a result of human activities (anthropogenic pollutants). The introduction of contaminants in the soil is also very likely to cause water pollution

Main sources of pollution
The industrial, craft and commercial activities pollute the soil heavily. Agricultural and livestock waste, fertilizers and pesticides pollute grassland. Accidents and oil spills, mines and quarries are some other causes of soil pollution. Also the ground is a recipient of atmospheric pollutants

Effects
Pollution of soil and underground water may have important direct or indirect negative impacts on both human health and ecological neighboring recipients of the polluted field. Also the ability of the soil to support the food chain may be affected by the effects of certain pollutants on flora and fauna.
Since the publication of the Presidential Decree of 1969, characterising Asopos as “industrial wastewater recipient” hundreds of industries have shed their effluents in the main part of the river
As a result, a huge area may be irreversibly contaminated with various wastes, including heavy metals such as hexavalent chromium. The contamination of Asopos’ groundwater directly affects the sources which supply water not only to the surrounding towns, but also to part of Attica, as they are infected.

The contamination of Asopos’ groundwater

Atmospheric pollution , where does it come from?
Athens Smog Levels Concern Doctors
Smoke Above Sintagma
Peneus the most polluted river!
New research on the environmental status of 15 major rivers in the Balkans, comes to confirm once again the already known. That is, Peneus is one of the most polluted rivers in Greece and by extension the Balkans. According to the survey, the water quality is very bad, since nitrate levels found are higher than the rivers of the entire country.

A crime that still remains unpunished
The problem of environmental pollution is also being addressed by policy decisions at central or regional level. An attempt was made with the Kyoto Protocol at an international level along with other UN activities. At European Union level, the catalyst was introduced in cars and the ionization in the chimneys of factories. These catalysts prevent the emission of unburned gas and oxides produced by internal combustion engines, while the ionization in chimneys reduces the emission of harmful gases by 90%. In addition, the shift to clean energy sources contributes to dealing with the problem of pollution.
Thank you for your attention
EPILOGUE
SOURCES
Αtmospheric pollution- wikipedia
Ambient air pollution and health effects-Pneumonologist.gr
Air Pollution-Dimitris Melas Department of Physics
Aristotle University of Thessaloniki
Air pollutants in Kozani, Ptolemaida and Florina-tvxs
Saving Water-Integrated Training Program for Schools of South Europe
Air Quality-Enviromental Centre, Region of West Macedonia
Life S.O.S , Contamination
Leonteios.edu.gr-Research Activities
Environmental pollution: The problem of the 21st century.
Background image-Green Planet, gomer08.deviantart.com
Overview of main health effects on humans-Wikipedia
Stubble burning causing air pollution-www.dnaindia.com
Godzilla 2014-www.deviantart.com
Agricultural Pollution-pages.cs.wisc.edu
soundtracks:MOTHER NATURE NEEDS US- Environmental Song w/lyrics (Original) by The PJ GRAND BAND
Full transcript