What we breathe in the city? In L ' air we breathe in the city is full of fine particles and pollutants of various kinds. The smaller particles seem to be invisible and also the most damaging to the human body, as they have the ability to penetrate the cell membrane and cause attravero in the long run, micro-inflammation of the tissues and their degeneration ( chronic diseases -degenerative diseases, tumors or ).
2d some pupils to have made an interesting research work in this regard:
"In some Italian cities, the pollution is the cause root of many diseases, environmental disasters. They have been installed in major cities units that detect an hourly air pollution. We must not lose heart because only by knowing the evils dell''ambiente we can find solutions, for example by changing our behavior and that of others. most responsible for 'air pollution is the transport sector , but also contribute industrial and domestic heating .
Children are the main victims because, given their stature, are the face at the exhaust pipes.
Some pollutants are:
SULPHUR DIOXIDE: originates from the combustion of fossil fuels which contain sulfur, which combines with oxygen to form the mixture, it causes respiratory and circulatory diseases and is responsible of acid rain.
CARBON MONOXIDE : very toxic compound that is formed by combustion. In small quantities will cause damage to the eye and muscular system.
SULPHUR OXIDES : they originate in the combustion process at high temperature and cause irritation to the eyes and throat.
suspended particulate : favors the onset of cancer.
Milan province and there are fifty units that control the amount of air. If levels are exceeded limit the phenomenon is communicated to the authorities to take measures as provided for in the restrictions on the movement of cars. air of Rome is very polluted and this has been an increase of cancer . The overruns permissible limits of pollutants in some areas densely crowded on the agenda..
Guidina xs, Guidina the best, Elenina 4 ever, 2G
" Vehicles release substances that can be harmful: for humans, because they can cause cancer, for nature, because they generate acid rain that, once deposited on farmland or on citizens moumentti cause damage. The plants show, for example, a yellowing of the leaves . Gas harmful to the ozone layer are CFCs (chlorofluorocarbons ) emanating from refrigerators and aerosols, especially insecticides. The absence of ozone in the atmosphere may cause the penetration of UV rays that cause the skin cancer. In order to reduce the levels of these gases should be used unless the vehicle that will emanate and use more public transport, or replace diesel fuel with natural gas, subject to frequent revisions their vehicles or, if not you can help it, but use them in moderation; control emissions of heating systems, do not use CFCs as aerosol sprays, which would also be prohibited and existing industries should diversify plants with minimal environmental impact. " . Pink diamant, 2g
"Air pollution
industrial, transportation and energy pouring harmful gases in the air. Air pollution has several consequences: 1
- on health of people: Smoke irritates the airways and increase the incidence of tumors
2 - on forest : These fumes cause the so-called acid rain
gases called CFCs are found in spray cans and refrigerators refrigerators
How reduce ' air pollution?
- Industries could diversify and reduce their environmental impact.
- The city could use gas and electric cars.
All citizens can contribute to cleaner air:
- Do not use aerosol sprays
- to do more public transport
- review by the machine and controlling gas emission.
down and angi, 2g
" -30 +20 +20 : the pact to reduce greenhouse gases.
The climate is changing on our planet: Our development model and the increase in electricity consumption are primarily responsible for environmental emergencies.'s getting worse the health and quality of human life. -30 +20 +20 Is the European target to reduce energy consumption and CO2 by 30%, for a savings of 20% more, increasing the 'efficiency and increase of 20% renewables for the energy requirements. What can we do to reduce production of greenhouse gases and rising heat? For example, leave the car at home to save about 0.250 kg CO 2 / km and collect 1 kg of separated waste to save 0.65 kg of CO2. The school can do much, because education affects the sustainable behavioral change in key..
and Lory Faith, 1G
"THE GREENHOUSE EFFECT in the summer. pollution has led to the greenhouse effect and, according to scientists, if not the world is now a solution in a few millennium, and 'doomed to disappear. The greenhouse effect and' like a veil around the globe that does not pass through the air, which was rejected by the veil, and go back to overheat the planet. The last summer, according to some surveys, it was discovered that it was the hottest of the century. In winter the greenhouse effect is being felt by various phenomena: floods, storms with lots of thunder and lightning, heavy snow, hail and strong winds. All this is leading to disastrous effects, as recently in Australia. Also, in winter you can see the devastating floods..
Ighli and Moris, 2G