gnmentonpol
lut
ionandi
tsheal
thef
fect
s
Name:
umikul
sum
Sec:
B
Cour
se:envi
ronment
alanddi
sast
er
management
Cour
seno:
EVS-
121
Submi
tt
edt
oDr
.Jav
eedi
qbal
1
, Def
ini
ti
ononpol
lut
ion
Pollut i
onist heintroduct i
onofcont aminants
i
ntot henat uralenvironmentt hatcauseadv erse
change. [
1]Pol l
uti
oncant aket heform of
chemi calsubstancesorener gy ,
suchasnoi se,
heatorl i
ght.Pol l
utant s,
thecomponent sof
poll
ut ion,canbeei therforeign
subst ances/ energiesornat ur all
yoccurring
cont ami nants.Pollutionisof tenclassedas
pointsour ceornonpoi ntsour cepollut
ion.In
2015, poll
utionkill
ed9mi ll
ionpeopl eint he
wor l
d.
Ty
pesofpol
lut
ion
Ther
ear
efourmai
nty
pesofpol
l
uti
on
1.
Airpol
l
uti
on.
2.
wat
erpol
l
uti
on.
3.Noi
sepol
l
uti
on.
4.Soi
lpol
l
uti
on.
2
, 1.Ai
rpol
lut
ion
Airpolluti
onoccur swhenhar mf ul
orexcessi ve
quant i
ti
esofsubst ancesar eintroducedinto
Earth'satmospher e.Sour cesofai rpoll
ution
i
ncludegases( suchasammoni a,carbon
monoxi de, sulfurdioxide, nit
rousoxi des,
met haneandchl or
ofluor ocarbons) ,parti
culat
es
(bothor ganicandi nor gani c),
andbi ol
ogical
molecul es.Itmaycausedi seases, all
ergi
esand
evendeat ht ohumans; itmayal socausehar m
toot herli
vingor ganismssuchasani malsand
foodcr ops, andmaydamaget henat ur
al orbui
lt
environment .Bothhumanact i
v i
tyandnat ural
processescangener at eai rpolluti
on.
Causesofai
rpol
lut
ion
Airpol
l
uti
oncanresul
tfrom bot hnaturaland
humanacti
ons.Natur
alev ent
st hatpoll
utethe
ai
rincl
udevol
cani
ceruptions,forestfi
res,wind
3