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ENVIRONMENTENVIRONMENTHow to protect and destroy it
Hegerová Lucie, Lacinová Eva
Introduction
air pollution
-greenhouse effect
-ozone holewater pollutiondamage of forests references
Air pollution
the biggest problem in large cities and in areas with concentrated industrial production
emission of sulphur dioxide nitrogen oxide carbon dioxide
→ climate changes
Greenhouse effectgreenhouse gases:water,water vapour,
carbon dioxide, methane, nitrogen oxide, and chlorofluorocarbons
fossil fuels, domestic animals, agriculture, disforesting
Vliv plynu na skleníkový efekt
0
40
80
vodn
ípá
ra
oxid
udlič
itý
met
han
oxid
dusn
ý
ozón
halo
geno
vané
uhlo
vodí
k
%
disforesting-odlesňování
increase of temperature on earth: melting of glacierfloods of coastal areas spreading of deserts
glacier-ledovec
Ozone layer
30 - 65 km max. amount of O3 - 50 km
O2 → O + O
O2 + O → O3 + 24 kcal
in stratosphere absorbed UV irradiationfall to the earth about 1% of UV
irradiation
Ozone holedecrease of amount of ozone in the atmospheresubstances destroying ozone layer:
freons, halogenidesthe most over Antarctica, North Polevisual disorder and skin cancer, lower
yield of crop, threating of animal and fytoplankton, corrosion of surfaces
visual disorder-poškození zrakucrop-plodinayield-výnos
Problem solving
using alternative sources of energy(solar, water, wind, geothermal, tidal energies)
encourage of railway and public transportusing unleaded petrol and autocatalyst instalation of flue gas desulphurisation
plants at some power stationencourage tree planting
tidal-přílivflue gas desulphurisation - odsiřování
Water pollutionresult from: harmful industrial processes and
householdssubstandard sewage treatment plantsagriculture:pesticides,fertilizers →nitrates can pollute inland waters waste disposial sitesships
fertilizers-hnojiva waste disposial sites-skládky
sewage treatment plants-čistička odpadních vod
Problem solving
control water from industrial processesmore sewage treatment plantschange farming practices (using
environmentally friendly pesticides)
Damage of forests acid raintree felling
for firewood,
building materials
and soilforest fire
felling-kácení
References:www.google.com Jana Chudá,Tomáš Chudý:Topics for
English Conversation. Fragment,Havlíčkův Brod 1997
Demek, J., Voženílek, V., Vysoudil, M.:Geografie pro střední školy. SPN, Praha 2001
Galan, M.:Tajemství podnebí.Velryba, Praha1997