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llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book...

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) K B ( n o a g e l a M E . T . I e l E / a h a h S . R . S - 4 p a h C / I - - - 1 l l l l M M a a l l j j a a i i l l l l n o i t u l l o P e s i o N . 4 r e t p a h C s u b a l l y S E T B S M . 4 n o i t u l l o P e s i o N ) 0 1 s k r a M ( e s i o n f o n o i t i n i f e D 1 . 4 e s i o n f o s e c r u o S 2 . 4 e s i o n f o s e p y T 3 . 4 - e s i o n c i n o s & e v i s l u p m I h t l a e h n o e s i o n f o s t c e f f E 4 . 4 t n e m e r u s a e m e s i o N 5 . 4 g n i p p a m e s i o N 6 . 4 1 . 4 r t n I n o i t c u d o : e v a w e r u s s e r p g n i y r a v y l k c i u q e h t s i d n u o S g n i l e v a r t s l e v a r t d n u o s n e h W . m u i d e m a h g u o r h t r e p s n o i t a i r a v e r u s s e r p f o r e b m u n e h T . y l l a c i d o i r e p s e i r a v e r u s s e r p c i r e h p s o m t a e h t , r i a h g u o r h t n i d e r u s a e m s i d n a , d n u o s f o y c n e u q e r f e h t d e l l a c s i d n o c e s s e l c y c s a d e n i f e d s i h c i h w ) z H ( z t r e H . d n o c e s r e p e s i o N . d n u o s d e t n a w n u s i e s i o n f o s e c r u o s y n a m s n i a t n o c t n e m n o r i v n e l a r u t a n e h T - , d n i w s d n u o s l a m i n a d n a , s n a e c o , s e o n a c l o v t u b , c t e n o i t u l l o P e s i o N o t s r e f e r y l l a r e n e g d e t n a w n u y b d e c u d o r p d n u o s s e i t i v i t c a n a m u h , k r o w , n o i t a c i n u m m o c h t i w s e r e f r e t n i t i s n a e m d e t n a w n U . s u o d r a z a h d n a , r e t a w , r i a s a h c u s , n o i t u l l o p f o s m r o f r e h t o e k i l n U . p e e l s r o , n o i t a e r c e r , t s e r n i a m e r t o n s e o d e s i o n , s l a i r e t a m . t n e m n o r i v n e e h t n i g n o l d n u o s h c i h w t a l e v e l e h t s i b d 0 8 y l l a u s U . d n u o s f o t n e m e r u s a e m r o f t i n u d r a d n a t s e h t s i l e b i c e D . e s i o n s a d e m r e t e b n a c d n A . l u f n i a p y l l a c i s y h p s e m o c e b : e s i o n f o s e c r u o S 2 . 4 g n i w o l l o F e s i o n f o s e c r u o s s u o i r a v e h t e r a i) d a o R r t e s i o n c i f f a i i ) r i A c i f f a r t i i i ) l i a R c i f f a r t v i ) d o o h r o b h g i e N e s i o n c i t s e m o d d n a v) e l b i t a p m o c n I e s u d n a l i v ) l a i r t s u d n I s e s i o n . c t e
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Page 1: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 1

lll lll MMMaaallljjjaaaiii lll lll

noitulloP esioN .4 retpahC

suballyS ETBSM

.4 noitulloP esioN )01 skraM( esion fo noitinifeD 1.4

esion fo secruoS 2.4 esion fo sepyT 3.4 - esion cinos & evislupmI

htlaeh no esion fo stceffE 4.4 tnemerusaem esioN 5.4

gnippam esioN 6.4

1.4 rtnI noitcudo :

evaw erusserp gniyrav ylkciuq eht si dnuoS gnilevart slevart dnuos nehW .muidem a hguorht

rep snoitairav erusserp fo rebmun ehT .yllacidoirep seirav erusserp cirehpsomta eht ,ria hguorht

ni derusaem si dna ,dnuos fo ycneuqerf eht dellac si dnoces selcyc sa denifed si hcihw )zH( ztreH

.dnoces rep

esioN .dnuos detnawnu si esion fo secruos ynam sniatnoc tnemnorivne larutan ehT - ,dniw

sdnuos lamina dna ,snaeco ,seonaclov tub ,cte noitulloP esioN ot srefer yllareneg detnawnu

yb decudorp dnuos seitivitca namuh ,krow ,noitacinummoc htiw serefretni ti snaem detnawnU .

suodrazah dna ,retaw ,ria sa hcus ,noitullop fo smrof rehto ekilnU .peels ro ,noitaercer ,tser

niamer ton seod esion ,slairetam .tnemnorivne eht ni gnol

dnuos hcihw ta level eht si bd 08 yllausU .dnuos fo tnemerusaem rof tinu dradnats eht si lebiceD

.esion sa demret eb nac dnA .lufniap yllacisyhp semoceb

:esion fo secruoS 2.4

gniwolloF esion fo secruos suoirav eht era

i ) daoR rt esion ciffa ii ) riA ciffart iii ) liaR ciffart vi ) doohrobhgieN esion citsemod dna v ) elbitapmocnI esu dnal iv ) lairtsudnI sesion .cte

Page 2: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 2

noitullop esion fo sdohtem dna secruos eht swohs 1.4 elbaT

aM S secruo esion fonoitullop dohteM op esion fo sdohteM noitull noitullop fo

ciffart daoR

ot ecnatculer a dna ,noitatropsnart daor no ecnailer ytinummoc gnisaercni tropsnart cilbup fo esu retaerg gnivlovni snoitulos laitrap tpecca

,gninnalp tropsnart htiw detargetni llew neeb ton sah gninnalp esu dnalniwolla ni rucco ot srodirroc tropsnart rojam dna stnempoleved laitnediser g

sgnidliub ot tnemtaert ro senoz reffub etairporppa tuohtiw ytimixorp esolc ot ecnatculer a dna ,noitatropsnart daor no ecnailer ytinummoc gnisaercni

rg gnivlovni snoitulos laitrap tpecca tropsnart cilbup fo esu retae ,gninnalp tropsnart htiw detargetni llew neeb ton sah gninnalp esu dnal

ni rucco ot srodirroc tropsnart rojam dna stnempoleved laitnediser gniwolla sgnidliub ot tnemtaert ro senoz reffub etairporppa tuohtiw ytimixorp esolc

t llew desaercni sah saera pu tliub hguorht sdaor gnitsixe ynam no ciffar eht fo snoitcurtsnoc ro gninnalp gnirud gniliaverp snoitatcepxe dnoyeb

syawdaor on rof ylballortnocnu gniknoh emit emas eht ta gnideeps srevird etaredisnocni

et hcihw ,nosaer tnerappa seillub daor sa srevird siht smr

ciffart riA

etairporppani ta gniylf srethgif dna senalp raw htiw gniniart ecrof ria yratilim saera laitnediser ot ytimixorp esolc ni edutitla gniylf wol ta sruoh etal

raey eht revo sthgilf laicremmoc fo srebmun desaercni eht etadommocca ot s dlrow eht tuohguorht sregnessap fo rebmun eht ot dnamed gnisaercni

dna secnabrutsid gnisuac aera detalupop ylesned hguorht nekat htap thgilf tnemnorivne eht fo ytiliuqnart eht htiw erefretni

ciffart liaR

tsarfni liar fo noitcurtsnoc yvaeh rehto dna gnillird ni sevlovni erutcur sesion gninefaed dna duol stime hcihw seirenihcam

ot redro ni enod dna dekcehc eb ot sdeen erutcurtsarfni liar fo ecnanetniam ,smroftalp dlo fo stnemecalper eht sevlovni liar eht fo ytefas eht erusne

dna sniart sesion duol gnittime seirenihcam yvaeh gnisu noitadnuof ti hcihw ni seitivitsef gnirud yllaicepse ,yadyreve gnisaercni sniart fo noitarepo

sruoh 42 rof lanoitarepo si cirtcele reteiuq eht naht seirtnuoc reroop ni senigne leseid dna lortep fo esu

a niart kcots gnillor fo noisrev redlo osla dn dezilacol ot dael nac hcihw yhpargopot dna nrettap gnippots elbatiusnu

aera ralucitrap a ni hgih si noitartnecnoc esion eht erehw melborp

dna doohrobhgieN esion citsemod

htiw rehto hcae htiw emoh fo ytimixorp esolc netfo reirrab dnuos doog a tuo edam sesion eht erudne ot srobhgien ni stluser

eht erehw emitthgin gnirud yldetaeper sgod gnikrab sedulcni hcihw sroodtuo mlac si doohrobhgien elohw

gnitaerc nwal eht ta gnirehtag laicos rehto dna smrala rac ,gniwom nwalon sesi

esu dnal elbitapmocnI

ton era setis lairtsudni yvaeh erehw gninoz dnal fo noitanimreted reporpmi esion ni gnitluser ,seirtsudni thgil yb saera laitnediser morf detarapes

aera laitnediser eht ni secnabrutsid ced ynam revo sesu dnal gnignahc tneuqerf ni detluser evah seda

sesu dna saera emos rof level esion elbatpeccanu

sesion lairtsudnI

gninefaed secudorp snoitsubmoc gnirud smsinahcem seirenihcam yvaeh sdnuos

devlovni level esion esaercni ni stluser osla gnigderd dna gninim tem erup fo snoitcartxe erusserp hgih rednu snevo ekoc ni sla stnalp rezilitref dna gnirutcafunam stnenopmoc lacirtcele ni esion fo tol a etaerc snaf dna srenoitidnoc ria ,srotareneg ,sreliob ,gnibmulP

.noitullop esion gniliaverp eht ot dda dna sgnidliub eht

Page 3: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 3

1.4 elbaT ruoS .noitullop esion fo sdohtem dna sec

tceffE 3.4 s :esioN fo

esuaceb ’relliK tneliS‘ a dellac si esioN esion .erusopxe degnolorp retfa ylno tceffe swohs noitullop

eseht noitarbiv yb desuac esoht naht tsrow hcum ,htlaeh no stceffe esrevda lareves sah esioN

ra :e

)i .noitullop esion fo stceffe tnelaverp tsom eht fo eno si ,tnenamrep ro yraropmet ,ssenfaeD

.tnemriapmi gniraeh rieht evah lla cte srotarepo enohpelet ,srevird evitomocol ,scinahceM

)ii iffe eht ni esaerced a si esion fo tceffe tsomerof dna tsrif ehT sah hcraeseR .gnikrow ni ycneic

.noitcuder esion htiw sesaercni ycneiciffe namuh taht tcaf eht devorp

)iii noitartnecnoc eht gnitceffa ybereht ,gnikrow fo smhtyhr eht sbrutsid esion fo hcum ooT

kaeps duol eht ro ciffart fo esioN .krow a gniod rof deriuqer trevid snroh fo sepyt tnereffid ro sre

.dradnats gnikrow eht ni mrah gnisuac suht ,noitnetta eht

)vi etoved ot deen elpoep ,noitartnecnoc fo kcal ot euD .esion fo tceffe rehtona si desuac eugitaF

ssenderit ot sdael hcihw ,ksat rieht etelpmoc ot emit erom .eugitaf dna

)v .elpoep gnoma slevel sserts eht gnisaercni ,rotarogivni sserts a sa stca noitullop esioN

)iv sesaesid niatrec fo smitciv eb nac elpoep ,esion fo hcum oot yb dednuorrus gnieb ,semitemoS

.cte ,ssenlli latnem ,erusserp doolb ekil

)iiv esioN ot tnemnorivne lufecaep & looc eriuqer stnalP .noitategev eht stceffa yltceridni noitullop

.sporc fo ytilauq roop sesuac noitullop esioN .worg

)iiiv eht fo metsys suovren eht segamad tI .llew sa noitullop esion ot elbitpecsus era slaminA

.slamina

4.4 S dnuo P seitrepor

dnuoS elim1 ro sdnoces3 ni mK1 ro ruoh rep selim057 fo etar a ta slevart tI .evaw erusserp a si

.muucav hguorht levart tonnac ti si taht levart ot muidem emos seriuqer tI .sdnoces 5 ni

cus muidem citsale na ni noitom evaw fo stsisnoc dnuoS ,slatem .g.e( sdilos ro retaw ,ria sa h

eht ot ecruos eht morf muidem eht hguorht levart sevaw dnuoS .).cte ,skcirb ,doow ,citsalp

.renetsil ro tneipicer

ssenduol )ii ycneuqerf )i era dnuos fo seitreporp tnatropmi eerhT )erusserp dnuoS( .ytisnetni )iii

.4 :ycneuqerF 1.4

Page 4: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 4

eht sa nwonk si muidem eht fo noitallicso eht fo etar ehT ycneuqerf gnieb tinu eht ,dnuos eht fo

)zH( ztreH ro .dnoces rep selcyc deviecer dnuos eht fo hctip eht fo erusaem a si ycneuqerf ehT

ctip hgih naem seicneuqerf hgiH .renetsil eht yb eht ot gnitatirri erom era hcihw sdnuos deh

.seicneuqerf wol naht laudividni seicneuqerf rewol hcum evah smurd yb decudorp sdnuos ehT

eltsihw a yb decudorp esoht naht .

niraeh esol elpoep ,gniega htiW .nosrep ot nosrep morf seirav rae eht fo ytivitisnes ehT rewop g

dna zH 02 neewteb egnar oidua sah ,gniraeh lamron htiw ,dlo raey 81 ,nosrep gnuoy A .yllaudarg

0002 egnar ycneuqerf eht ni tseprahs si esnes oidua ehT .zH 000,02 - .zH 0058

:ssenduol 2.4.4

duol A .ssenduol sti si esion ro dnuos fo ytreporp rehtonA erusserp regral a sah yllausu esion

era snoitairav erusserp dna erusserP .noitairav erusserp rellams sah eno kaew a dna noitairav

m/N sa denifed si hcihw ,aP sa detaiverbba ,lacsaP ni desserpxe 2 erauqs rep notweN( retem .)

esioN/dnuoS fo ecruoS tamixorppA erusserP dnuoS e aPµ ni

elttuhS ecapS eht fo gnihcnuaL 000,000,000,2 artsehcrO ynohpmyS lluF 000,000,2

m 52 ta deepS hgiH ta niarT thgierF leseiD 000,002 noitasrevnoC lamroN 000,02

yrarbiL ni m 2 ta gnirepsihW tfoS 000,2 oidutS tsacdaorB deipucconU 002

raeH nac namuH dnuoS tsetfoS 02 .4 elbaT 2 aPµ fo smret ni esion ro dnuos nommoc

secruoS dnuoS

ecnatsid htiw selpmaxE erusserP dnuoS

leveL Lp LPSBd erusserP dnuoS p

m/N 2 aP = ytisnetnI dnuoS I

m/W 2 yawa m 05 ,tfarcria teJ 041 002 001

o dlohserhT niap f 031 2.36 01 trofmocsid fo dlohserhT 021 02 1

ecnatsid m 1 ,wasniahC 011 3.6 1.0 rekaeps morf m 1 ,ocsiD 001 2 10.0

yawa m 01 ,kcurt leseiD 09 36.0 100.0 m 5 ,daor ysub fo edisbreK 08 2.0 1000.0

m 1 ecnatsid ,renaelc muucaV 07 360.0 10000.0 m 1 ,hceeps lanoitasrevnoC 06 20.0 100000.0

emoh egarevA 05 3600.0 1000000.0 yrarbil teiuQ 04 200.0 10000000.0

thgin ta moordeb teiuQ 03 36000.0 100000000.0 oiduts VT ni dnuorgkcaB 02 2000.0 1000000000.0 id eht ni sevael gniltsuR ecnats 01 360000.0 10000000000.0

gniraeh fo dlohserhT 0 20000.0 100000000000.0

Page 5: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 5

elbaT S :3.4 slevel dnuo L dna )ssenduol( dnuos dna erusserp dnuos gnidnopserrocytisnetni

nuos tsetfos ehT .erusserp dnuos fo egnar ediw yrev a eviecrep nac rae namuH lamron a d

si hcihw ,aPµ sa detaiverbba ,slacsaP orcim 02 fo noitairav erusserp a sah tceted nac rae namuh

01 x 02 -6 rehto eht nO .gniraeH fo dlohserhT eht dellac si dna )"lacsaP a fo htnoillim 02"( aP

neve ysion yrev emos ot esolc erusserp dnuos eht ,dnah elttuhs ecaps eht fo gnihcnual sa hcus st

01 x 2 ro aP 0002 yletamixorppa fo ecnatsid trohs a ta noitairav erusserp egral a ecudorp nac 9

.aPµ T elba 2.4 smret ni esion ro dnuos nommoc emos swohs .aPµ fo

hw ,aP fo smret ni esion ro dnuos gnisserpxe diova o elbaeganamnu emos evlovni dluoc hci

ro aPμ 02 fo dlohserht gniraeh eht sesu elacs ehT .desu si elacs Bd ro lebiced eht ,srebmun

01 x 02 -6 .Bd 0 sa denifed si sihT .level ecnerefer eht sa aP

cihw gniraeh fo dlohserht eht si desu ytisnetni ecnerefer ehT tsrif eb nac hcihw dnuos snaem h

01 x 2 fo erusserp dnuos a ta draeh -5 01 fo ytisnetni dnuos ro retem .qs rep snotweN - 21 sttaw

.retem .qs rep

L ro LPS sa detaiverbba netfo si hcihw ,level erusserp dnuoS p eb neht nac ,)Bd( slebiced ni ,

f eht gnisu deniatbo alumrof gniwollo

cimhtiragol ni desserpxe ,oitar a si tub .cte retem ,tlov ekil tinu lacisyhp etulosba na ton si tI

.level erusserp dnuos ecnerefer a ot evitaler elacs

hpelet eht fo reenoip naidanaC eht ,lleB maharG rednaxelA retfa deman si lebiced ehT ohw eno

)iced( htnet ro ,Bd( lebiced esu eW .elpoep faed fo smelborp eht ni tseretni lanosrep taerg koot

.))leB a fo

namuh eht ot noitamixorppa retteb hcum a sevig ti taht si elacs lebiced eht fo tcepsa lufesu enO

P eht naht ssenduol evitaler fo noitpecrep eht ot sdnopser rae namuh esuaceb si sihT .elacs lacsa

.elacs lebiced eht ot sdnopserroc hcihw ,level ni egnahc cimhtiragol

01 hcae ;cimhtiragol si elacs lebiced ehT - esion ni esaercni dlofnet a stneserper esaercni lebiced

uol fo noitpecrep namuH .ytisnetni 01 a ;elacs cimhtiragol a ot smrofnoc osla ssend - lebiced

erom semit 01 si slebiced 03 ,suhT .ssenduol fo gnilbuod a ylhguor sa deviecrep si esaercni

02 naht esnetni erom semit 001 si slebiced 04 ;duol sa eciwt sdnuos dna slebiced 02 naht esnetni

Page 6: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 6

sdnuos dna 46 sdnuos dna 02 naht esnetni erom semit noillim 1 si slebiced 08 ;duol sa semit 4

.duol sa semit

a ta ciffart otua etaredom ,suhT .rae eht gnihcaer level lebiced evitceffe eht sehsinimid ecnatsiD

d a oT .slebiced 05 tuoba setar )m 03( tf 001 fo ecnatsid a ro nepo wodniw rac a htiw revir

semit 4 sdnuos ti ,si taht ;slebiced 07 tuoba setar ciffart emas eht ,klawedis eht no nairtsedep

slebiced 011 tuoba sehcaer ffoekat tej a fo esion eht ,)m 006( tf 000,2 fo ecnatsid a tA .reduol —

na sa emas eht yletamixorppa .yawa )m 1( tf 3 ylno nroh elibomotua

eht nI 4.4 elbat enO .Bd ni yllacimhtiragol dna aPµ ni ylraenil htob desserpxe era sdnuos emos ,

.ylisae erom hcum elacs ediw a no srebmun eldnah ot su spleh elacs cimhtiragol eht woh ees nac

:ytisnetni 3.4.4

t ehT sti si dnuos fo retemarap drih ytisnetni , mutnauq eht .e.i retem .qs rep sttaw ni desserpxe

Page 7: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 7

.emit tinu ni muidem eht fo aera tinu hguorht swolf taht ygrene dnuos fo 01 fo ytisnetni dnuos - 21

retem .qs rep sttaw fo dlohserht eht si namuh .gniraeh

ewop dnuoS r tI .eulav etulosba na si dna ,ecruos dnuos eht yb dettime ygrene lacitsuoca eht si

si ton .tnemnorivne eht yb detceffa

:etoN " mret desu netfo ehT ytisnetni fo .tcerroc ton si "erusserp dnuos ,"edutingam" esU

.daetsni "level" ro ,"edutilpma" ,"htgnerts"

u rep rewop dnuos si "ytisnetni dnuoS" a si "erusserp" elihw ,aera tin tinu rep ecrof fo erusaem

ytisnetnI .aera ton si )ytitnauq ygrene dnuos( .)ytitnauq dleif dnuos( erusserp ot tnelaviuqe

esioN fo sepyT 5.4

ac esioN emit revo segnahc ti woh no gnidnepeD eb n i )etats ydaets( suounitnoc ) ii , elbairav ) ro

tnettimretni dna iii .evislupmi )

esion ehT .doirep emit nevig a revo elbats dna tnatsnoc sniamer hcihw esion si esion suounitnoC

lc eb erofereht nac dna tnatsnoc ylevitaler si esuoh rewop a ni sreliob fo .suounitnoc sa deifissa

ni derusaem era sesion etats ydaetS )A(Bd .

esion tnereffid ro snoitarepo tnereffiD .tnettimretni ro elbairav si esion gnirutcafunam tsoM

uos ylevitaler fo xim a si ereht fi tnettimretni si esioN .emit revo segnahc dnuos eht esuac secr

.ysion dna sdoirep teiuq

.dnoces eno naht ssel rof stsal hcihw esion duol fo tsrub trohs yrev a si esion tcapmi ro eslupmI

hcnup yb decudorp esion eht ro erif nuG era sesion eslupmI .esion hcus fo selpmaxe si sesserp

ni derusaem )P( Bd .

:moob cinoS 1.5.4

a yb desuac si tI .rednuht ot ralimis esion evislupmi na si moob cinoS naht retsaf gnivom tcejbo n

;dnuos .level aes ta ruoh rep selim 057 tuoba .stfarcria cinosrepus yb desuac yltsom era esehT

Page 8: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 8

:1.4 giF sdeeps tnereffid ta gnivom tcejbo yb detaerc sevaw erusserP

a eht hguorht sessap tcejbo na nehW fo seires a setaerc ti ,ri sevaw erusserp dna ti fo tnorf ni

eht ot ralimis ,ti dniheb sevaw nrets dna wob taob a yb detaerc eht ta levart sevaw esehT . deeps

dnuos fo ro ,rehtegot decrof era sevaw eht ,sesaercni tcejbo eht fo deeps eht sa dna ,

fo "yaw eht fo tuo teg" tonnac yeht esuaceb ,desserpmoc a otni gnigrem yllautneve ,rehto hcae

elgnis evaw kcohs si dna 1 hcaM sa nwonk si deeps lacitirc sihT .dnuos fo deeps eht ta

522,1 yletamixorppa 02 dna level aes ta )hpm 167( h/mk ( C° 86 .)F°

cinos gnippord ,sevaw kcohs gnitareneg yllaunitnoc si ti sdeeps cinosrepus ta seilf tfarcria na sA

eht morF .elcihev gnivom a morf stcejbo gnippord enoemos ot ralimis ,htap thgilf sti gnola moob

s eb ot sraeppa moob eht ,tfarcria eht fo evitcepsrep yawa slevart ti sa sdrawkcab tpew eht morf

eht fo tnorf ni dnuorg eht tih lliw moob eht ,pu sllup ro nrut prahs a sekam enalp eht fI .tfarcria

.tfarcria

erusserp fo esaeler dna tesno neddus eht si "moob cinos" a sa dnuorg eht no draeh dnuos ehT

b eht retfa ".erusserprevo kaep" ro evaw kcohs eht yb pudliu T morf seirav erusserprevo kaep eh

)aP 005 ot 05( toof erauqs rep sdnuop 01 tuoba ot toof erauqs rep dnuop eno naht ssel eht si tI ,

.moob cinos a sebircsed taht erusserprevo kaep siht fo edutingam

ygrene ehT 1.0 eht ni detartnecnoc si moob cinos fo egnar - si taht egnar ycneuqerf ztreh 001

cinos fo noitaruD .esion lairtsudni tsom dna erifnug ,tfarcria cinosbus fo taht woleb ylbaredisnoc

si moob tuoba rethgif tsom rof sdnocesillim 001 , - m 005 dna tfarcria dezis eht rof sdnocesilli

.reniltej edrocnoC ro elttuhs ecaps

retfa sdnoces 06 ot owt dnuorg eht hcaer smoob cinos ,edutitla s'tfarcria eht no gnidnepeD

.snoitidnoc cirehpsomta no sdneped ti level dnuorg ta draeh era smoob lla ton ,revewoH .revoylf

fo dnuos ehT eht dna revresbo eht neewteb ecnatsid eht no ylegral sdneped moob cinos a

eht sa "moob" elbuod peed a sa draeh yllausu si moob cinos A .moob cinos eht gnicudorp tfarcria

.yawa ecnatsid emos yllausu si tfarcria W si moob cinos eht ybraen si tfarcria eht neh reprahs a

ta desu "sbmob lairea" eht ekil hcum si dnuos ehT ."kcarc" ro "gnab" krowerif .syalpsid

6.4 esioN :stnemurtsni gnirusaem

nuos eht era esion gnirusaem rof desu stnemurtsni nommoc tsom ehT eht ,)MLS( retem level d

.retemisod esion eht dna ,)MLSI( retem level dnuos gnitargetni

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)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 9

1.6.4 :retem level dnuoS

enohporcim ehT .yalpsid tuodaer a dna stiucric cinortcele ,enohporcim a fo stsisnoc MLS ehT

taicossa snoitairav erusserp ria llams eht stceted lacirtcele otni meht segnahc dna dnuos htiw de

ehT .tnemurtsni eht fo yrtiucric cinortcele eht yb dessecorp neht era slangis esehT .slangis

eno ta level erusserp dnuos eht sekat MLS ehT .slebiced ni level dnuos eht syalpsid tuodaer

ralucitrap a ni tnatsni .noitacol

secalpkrow ni tneiciffus si sihT .stnemerusaem esion suoenatnatsni ylno sekat MLS dradnats A

,slevel esion elbairav ro tnettimretni ,eslupmi htiw secalpkrow ni tuB .slevel esion suounitnoc htiw

a s'nosrep a enimreted ot tluciffid ti sekam MLS eht .tfihs krow a revo esion ot erusopxe egarev I n

retemisod esion a secalpkrow hcus desu si .

:retem level dnuos gnitargetnI 2.6.4

tnelaviuqe senimreted tI .retemisod eht ot ralimis si )MLSI( retem level dnuos gnitargetni ehT

tnemerusaem a revo slevel dnuos edivorp ton seod MLSI na taht si ecnereffid rojam ehT .doirep

h si ti esuaceb serusopxe lanosrep dna - ralucitrap ta decalp eb tonnac dna ,MLS eht ekil dleh

.tniop

daer elgnis a sdleiy tI .noitacol ralucitrap a ta slevel dnuos tnelaviuqe senimreted MLSI ehT fo gni

erp a sesu tI .yllaunitnoc segnahc esion eht fo level dnuos lautca eht fi neve ,esion nevig a -

eht no gnittes WOLS eht ot tnelaviuqe si taht tnatsnoc emit a htiw ,etar egnahcxe demmargorp

.MLS

3.6.4 retemisod esioN

thgil ,llams a si retemisod esion A enohporcim llams a htiw tleb s'nosrep a ot spilc taht ecived

level esion eht serots retemisod ehT .rae na ot esolc ,ralloc s'nosrep eht ot snetsaf taht

yllausu esion erehw yrtsudni ni lufesu si tI .ssecorp gnigareva na tuo seirrac dna noitamrofni

i seirav .snoitacol segnahc nosrep eht erehw dna ,ytisnetni dna noitarud n

fo epyTtnemerusaeM

etairporppA stnemurtsnI fo redro ni(

)ecnereferp

tluseR stnemmoC

retemisoD )1 ro esoD tnelaviuqelevel dnuos

lanosrep rof etarucca tsoMxe esion serusop

*MLSI )2 tnelaviuqElevel dnuos

ti ,elibom si rekrow eht fI ot tluciffid eb yam

lanosrep a enimreted nac krow sselnu ,erusopxe

otni dedivid ylisae eb .seitivitca denifed

esion lanosrePerusopxe

**MLS )3 )A(Bd yrav slevel esion fI ot tluciffid si ti ,ylbaredisnoc

Page 10: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 01

eted egareva enimr nehw lufesu ylnO .erusopxe dedivid ylisae eb nac krow dna seitivitca denifed otni ylevitaler era slevel esion

.emit eht lla elbats **MLS )1 )A(Bd eb dluohs tnemerusaeM

morf sertem 3 ot 1 nekatos eht ta yltcerid ton( ecru

.)ecruos

slevel esioN a yb detareneg

ralucitrapecruos

**MLSI )2 tnelaviuqE level dnuos

)A(Bd

si esion fi lufesu ylralucitraP nac ti ;elbairav ylhgih

dnuos tnelaviuqe erusaem fo doirep trohs a revo level

.)etunim 1( emit MLS )1 )A(Bd na fo pam esion ecudorp oT

stnemerusaem ekat ;aera.nrettap dirg a no

yevrus esioN

MLSI )2 tnelaviuqE level dnuos

)A(Bd

.esion elbairav ylhgih roF

esion eslupmI MLS eslupmI )1 erusserp kaeP)A(Bd

fo kaep eht erusaem oT.eslupmi hcae

reteM leveL dnuoS rof sdnats MLS * tnI rof sdnats MLSI ** reteM leveL dnuoS gnitarge

elbaT 5.4 : noitceleS tnemurtsnI rof senilediuG

.4 7 ?ecalpkrow eht ni smelborp esion yfitnedi uoy od woH

A .ecalpkrow ruoy ni melborp laitnetop a si esion ton ro rehtehw enimreted ot si pets tsrif ehT

klaw - spleh yevrus hguorht esion suodrazah yllaitnetop fo srotacidni ehT .noisiced siht gnikam ni

:edulcni level

,ciffart ytic ysub naht reduol si esioN )a

eno ta enoemos ot klat ot eciov rieht esiar ot evah elpoeP )b retem ,yawa )teef 3(

t evah elpoep tfihs krow fo dne eht tA )c oot level a ot VT ro oidar rieht fo emulov eht esaercni o

dna ,srehto rof duol

a ni etacinummoc ot tluciffid ti dnif seeyolpme ,ecalpkrow taht ta sraey wef a rof gnikrow retfA )d

.seciov ynam ro sdnuos rehto era ereht erehw noitautis ytrap ro dworc

8.4 N esio gnippaM esioN dna yevruS :

Page 11: llll MMaalljjaaii llll Chapter 4. Nois e Pollutionnpkauto.com/oldweb/data/notes/third/5e/EPC book by... · Noise is unwa nt ed so u nd. The natural e nvir onm ent co ntains many sou

)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 11

si hcihw aera na fo pam a si paM esioN A deroloc .aera eht ni slevel esion eht ot gnidrocca

neewteb seiradnuob eht wohs hcihw senil ruotnoc yb nwohs eb yam slevel esion eht ,semitemoS

.aera na ni slevel esion tnereffid

sioN .noitacol ro noiger ,aera ralucitrap rof nward eb nac pam e a gnivah fo tifeneb rehtruf A

.snalp rehto dna noitatropsnart fo stceffe eht ssessa ot desu eb nac ti taht si ledom esion suhT

esion elbatius dna dessessa eb nac daor wen desoporp a fo tceffe eht dengised eb nac noitagitim

.tcapmi sti eziminim ot tsoc a erehw ,gninnalp noitca esion ni tnatropmi ylralucitrap si sihT -

.edam si noisiced a erofeb detset eb nac snoitpo suoirav fo sisylana tifeneb

,melborp esion htiw yrtsudni ni elpmaxe roF a vrus esion stnemerusaem esion sekat ye

lufesu yrev edivorp syevrus esioN .saera ysion yfitnedi ot noitces ro tnalp eritne na tuohguorht

:yfitnedi ot su selbane hcihw noitamrofni

)i A anosrep dna esion fo slevel lufmrah ot desopxe eb ot ylekil era seeyolpme erehw saer l

,dedeen eb yam yrtemisod

)ii M ,esion fo slevel lufmrah etareneg hcihw tnempiuqe dna senihca

)iii E dna ,slevel esion elbatpeccanu ot desopxe eb thgim ohw seeyolpm

)vi esioN .erusopxe esion ecuder ot snoitpo lortnoc

hw saera ni detcudnoc si yevrus esioN level esioN .suodrazah eb ot ylekil si erusopxe esion ere

snoitacol detceles ta level esion gnirusaem sevlovni yevrus esion A .dnuos fo level eht ot srefer

dnuos a htiw enod yllausu si sihT .saera ysion yfitnedi ot snoitces ro tnalp eritne na tuohguorht

el retem lev MLS( ysion dna srekrow fo snoitacol eht gniwohs hcteks etarucca ylbanosaer A .)

dnuora snoitisop fo rebmun elbatius a ta nekat era stnemerusaem level esioN .nward si senihcam

eht ,nekat stnemerusaem erom ehT .hcteks eht no dekram era dna aera eht eht etarucca erom

lauqe fo stniop neewteb hcteks eht no senil gniward yb decudorp eb nac pam esion A .yevrus

erugiF ni taht ekil ,spam yevrus esioN .level dnuos 1.4 ylraelc yb noitamrofni lufesu yrev edivorp ,

sdrazah esion era ereht erehw saera gniyfitnedi .

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)KB( noagelaM E.T.I elE / ahahS.R.S - 4 pahC / I --- 21

esion gnirud snoituacerP 1.8.4 yevrus :

:yevrus esion gnirud nekat era snoituacerp gniwolloF

)i .esu hcae retfa dna erofeb detarbilac eb tsum MLS ehT

)ii porcim eht ,ssol gniraeh fo ksir eht ssessa ot si tnemerusaem esion fo esoprup eht nehW enoh

esohw rof eeyolpme eht fo srae eht fo noitacol eht ot elbissop sa esolc sa eb dluohs noitisop

.nekat gnieb era atad erusopxe esion eht tifeneb

)iii erutpaC tseduol si esion eslupmi eht nehw emit ni tniop .

ecisrexE

.Q e dna esioN enifeD suoirav tsiln .noitullop esioN fo secruos

tceffe eht etatS .Q s .htlaeh no esion fo

.esion fo sepyt tuoba trohs ni etirW .Q

.moob cinos si tahw nialpxE .Q

dnuos fo seitreporp etirW .Q tnemerusaem rieht fo stinu etirw dna .

eferp si elacs cimhtiragol yhW .lebiced enifeD .Q tnemerusaem dnuos ni derr

secived eerht emaN .Q ylnommoc .tnemerusaem dnuos rof desu

.Q .ecnacifingis sti etatS ?gnippam esion dna yevrus esion si tahW


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