Presentation Transcript
Slide 1:What are the consequences of our pollution ? A major consequence: acid rains
DEFINITION :DEFINITION Different types of atmospheric pollution Natural phenomena Human activities + Release chemical substances such as dry or humid deposits that can increase or decrease the impact of acid rains.
Slide 3:What are the origins of ACID RAINS ? Human activities are at the origin of important quantities of polluting items that are thrown out in the atmosphere and which contibute to acid rains .
Slide 4:Gases which are at the origin of acid rains are : Sulphur dioxyde Carbon dioxyde Nitrogen oxide
Slide 5:Acid rains appear when : Sulphur dioxyde Nitrogen oxide Release sulphuric acid and nitric acid ! They move up into the air and are released as acid rains
Slide 6:What are the consequences of acid rains on the environnement ? On top of the disastrous consequences on our health, the different components of our environment can be affected by acid rains :
water
ground
materials
plants
Slide 7:Consequences on water and the wildlife of lakes The water looks more transparent because plankton has disappeared Fish can’t breathe properly, different species disappear
Slide 8:Consequences on materials The acid effect of acid rains prompts : The corrosion of metal items The erosion of railways Stone disintegration into dust Unfortunately monuments are not spared by pollution !!
Slide 9:Consequences on plants and forests Acid rains take part: Under the action of polluting factors in the gradual death of forests !! the permeability of leaves, needles and plants are altered !!
Slide 10:The fight against acid rains is only starting !! How to prevent acid rains ?
Slide 11:Producing more and more electricity thanks to wind or water power in order to Use fewer and fewer power stations
Slide 12:Building vehicles that :
use less petrol or energy
and are equipped with catalytic converters
Slide 13:Not driving as fast on motorways, with a maximum speed of 110 Km/h instead of 130 Km/h
Slide 14:Using :
bicycles for short distances
public transport as often as possible
car-sharing