Qhov sib txawv tseem ceeb ntawm cov smog classical thiab photochemical smog yog cov qauv smog classical vim huab cua ntub, whereas photochemical smog cov ntaub ntawv vim cov pa luam yeeb los ntawm tsheb thiab factories.
Lo lus smog tuaj yeem piav qhia tias yog huab cua lossis huab cua hnyav los ntawm cov pa taws lossis lwm yam pa phem hauv huab cua. Smog yog ib hom kev ua pa phem heev. Lo lus no tau los ua koob meej nyob rau tiam 20th centuries. Thaum xub thawj, lo lus no tau siv los ua lub npe pea kua zaub, ib qho teeb meem loj hauv London uas tshwm sim los ntawm 19th xyoo pua mus rau nruab nrab-20th xyoo pua. Cov pa phem no pom muaj xws li nitrogen oxides, sulfur oxide, ozone, pa luam yeeb, thiab lwm yam khoom.
Peb tuaj yeem categorize nws mus rau hauv classical smog thiab photochemical smog raws li lawv tsim. Tsis tas li ntawd, peb tuaj yeem faib cov smog raws li lub caij ntuj sov smog thiab lub caij ntuj no smog. Lub caij ntuj sov smog yog txuam nrog photochemical tsim ntawm ozone. Lub caij ntuj no smog tsim nyob rau lub caij ntuj no; Nws tshwm sim thaum qhov kub thiab txias thiab atmospheric inversions muaj ntau, uas ua rau muaj kev nce hauv cov thee thiab lwm yam fossil roj siv uas yog ib qho tseem ceeb hauv cov cua sov hauv tsev thiab cov tsev.
Dab tsi yog Classical Smog?
Classical smog yog sib xyaw ntawm cov pa taws, pos huab, thiab sulfur dioxide uas tsim los ntawm huab cua txias, ntub dej. Ib tug classical smog nyhav dhau los txo qhov xwm txheej. Peb tuaj yeem pom hom smog ntuj no hauv thaj chaw uas muaj huab cua ntub. Classical smog tuaj yeem ua raws li tus neeg sawv cev txo qis thaum muaj cov pa phem hauv huab cua; yog li ntawd, peb hu nws txo smog.
Photochemical Smog yog dab tsi?
Photochemical smog lossis lub caij ntuj sov smog yog cov tshuaj tiv thaiv ntawm tshav ntuj, nitrogen oxides, thiab volatile organic tebchaw nyob rau hauv cov huab cua. Cov tshuaj tiv thaiv no tawm hauv cov huab cua thiab cov ozone hauv av. Hom smog no nyob ntawm thawj cov pa phem thiab tsim cov pa phem thib ob.
Daim duab 02: Photochemical Smog los ntawm ib puag ncig muaj kuab paug
Cov pa phem tseem ceeb muaj xws li nitrogen oxides xws li nitric oxide thiab nitrogen dioxide, volatile organic compounds, thiab lwm yam. Cov pa phem thib ob muaj xws li peroxyacetyl nitrates, tropospheric ozone, thiab aldehydes.
Ntxiv mus, qhov muaj pes tsawg leeg ntawm photochemical smog thiab cov kev cuam tshuam cuam tshuam nrog kev tsim ntawm nws tsis tau nkag siab tag nrho txog rau xyoo 1950.
Muaj qee qhov ua rau ntuj tsim uas ua rau muaj kev phom sij photochemical. Qhov loj ntawm ntuj tsim muaj xws li volcanoes thiab nroj tsuag. Feem ntau, lub roob hluav taws tawg emits ib qib siab ntawm sulfur dioxide nrog rau ntau qhov teeb meem uas nws tawm. Ob qho no yog cov khoom tseem ceeb hauv kev tsim cov smog photochemical. Lub photochemical smog tsim los ntawm volcanic eruption yog hu ua "vog". Qhov no yuav pab kom peb paub qhov txawv ntawm qhov tshwm sim. Qhov thib ob loj qhov chaw ntawm photochemical smog yog cov nroj tsuag. Thoob plaws ntiaj teb, cov nroj tsuag thiab av pab tsim cov hydrocarbons los ntawm kev tsim cov isoprene thiab terpenes. Cov hydrocarbons uas tau tso tawm los ntawm cov nroj tsuag zoo li muaj zog ntau dua li cov neeg tsim hydrocarbons. Cov tebchaw no tuaj yeem ua rau tsim cov smog photochemical.
Qhov txawv ntawm Classical Smog thiab Photochemical Smog yog dab tsi?
Qhov sib txawv tseem ceeb ntawm cov smog classical thiab photochemical smog yog cov ntawv smog classical vim huab cua ntub, whereas photochemical smog forms vim cov pa luam yeeb los ntawm lub tsheb thiab cov chaw tsim khoom. Ntxiv mus, classical smog cov ntaub ntawv nyob rau hauv txias, ntub huab cua, thaum photochemical smog tsim nyob rau hauv qhuav thiab tshav ntuj climates.
Cov hauv qab no qhia txog qhov sib txawv ntawm cov smog classical thiab photochemical smog hauv daim ntawv tabular rau ib sab sib piv.
Summary – Classical Smog vs Photochemical Smog
Lo lus smog tuaj yeem piav qhia tias yog huab cua lossis huab cua hnyav los ntawm cov pa taws lossis lwm yam pa phem hauv huab cua. Classical smog cov ntaub ntawv raws li ib tug tshwm sim ntawm tej yam ntuj tso xwm txheej, thaum photochemical smog cov ntaub ntawv raws li ib tug tshwm sim ntawm tib neeg kev ua ub no. Qhov sib txawv tseem ceeb ntawm cov smog classical thiab photochemical smog yog cov ntaub ntawv smog classical vim huab cua ntub, whereas photochemical smog daim ntawv vim cov pa luam yeeb los ntawm tsheb thiab factories.
