Kev siv cov khoom siv tshuaj lom neeg hauv kev lag luam
Raws li cov kev phom sij, peb faib cov pa phem thiab cov pa phem rau hauv ob pawg: cov pa hluav taws xob thiab cov pa phem. los ntawm
Cov pa phem tuaj yeem muaj nyob hauv cov ntaub ntawv tsim khoom thiab tuaj yeem tshawb pom los ntawm cov khoom siv tshuaj lom neeg. Zoo li feem ntau cov tshuaj organic (VOCs), lawv kuj tseem tuaj yeem muaj nyob hauv cov khoom lag luam hauv ntau theem ntawm cov txheej txheem tsim khoom, xws li ammonia, carbon monoxide, hydrogen sulfide, thiab lwm yam. Lawv yog cov teeb meem kev nyab xeeb tseem ceeb rau cov neeg ua haujlwm. Qhov kev puas tsuaj no tsis yog tsuas yog muaj kev puas tsuaj tam sim ntawd, xws li lub cev tsis xis nyob, mob, tuag, thiab lwm yam, tab sis kuj suav nrog kev ua phem rau tib neeg lub cev mus ntev, xws li kev tsis taus, mob qog noj ntshav, thiab lwm yam. Kev kuaj pom cov pa phem thiab cov pa phem no. yog ib qho teeb meem uas tsim lub teb chaws yuav tsum pib ua tib zoo saib xyuas. TWA (8-teev qhov ntsuas qhov ntsuas qhov nruab nrab), STEL (15 feeb luv luv-term raug), IDLH (tam sim ntawd tuag koob tshuaj) (ppm), thiab MAC (rhiav qhov siab tshaj plaws tso cai concentration) mg/m3 ntawm cov tshuaj lom thiab cov pa phem. Nyob ntawm seb hom roj, TWA, STEL, IDLH, MAC qhov tseem ceeb yuav txawv rau qee qhov. Tam sim no, rau kev tshawb nrhiav cov pa roj tshwj xeeb, peb feem ntau siv cov pa tshwj xeeb sensors. Nws tuaj yeem suav nrog cov saum toj no. Tag nrho cov roj sensors tau teev tseg, suav nrog lub ntsuas hluav taws xob photoionization tau qhia hauv ob tshooj dhau los. Ntawm lawv, txoj kev sib raug zoo, kuj paub tab, thiab kev paub zoo rau kev kuaj xyuas cov pa roj carbon monoxide yog qhov muaj peev xwm electrolysis tsis tu ncua, uas feem ntau hu ua electrochemical sensors.
Tam sim no, peb muab qhov tseem ceeb rau kev tshawb nrhiav cov pa roj uas tuaj yeem ua rau mob hnyav, xws li hydrogen sulfide thiab hydrogen cyanide. Txawm li cas los xij, peb tsis them nyiaj txaus rau kev tshawb nrhiav cov pa roj uas tuaj yeem ua rau muaj kev phom sij ntev, xws li cov tshuaj tsw qab hydrocarbons thiab cawv. Qhov tseeb, qhov kawg ua rau muaj kev phom sij tsawg dua rau kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg ua haujlwm dua li cov pa roj uas tuaj yeem ua rau mob hnyav! Lawv tuaj yeem ua rau mob qog noj ntshav thiab lwm yam kab mob zais, cuam tshuam rau lub neej thiab kev noj qab haus huv ntawm cov neeg ua haujlwm. Qhov tshwm sim ntawm qhov tshwm sim no tsis yog tsuas yog vim kev xav, tab sis kuj yog vim tsis muaj cov khoom siv hluav taws xob tsim hluav taws xob uas tuaj yeem kuaj xyuas qhov qis dua hauv kev ua lag luam yav dhau los. Nrog rau kev txhim kho ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho ntawm tib neeg kev noj qab haus huv, tib neeg tsis txaus siab rau qhov tsuas yog "los mus ua haujlwm zoo siab thiab mus tsev yam nyab xeeb", tab sis tab tom nrhiav kev zoo dua ntawm lub neej thiab kev ua neej nyob. Cov neeg tsis yog tsuas yog saib xyuas kev ua haujlwm niaj hnub no, tab sis kuj tseem hais txog tag kis - lawv lub neej tom qab so haujlwm.
Yog li ntawd, kev siv cov cuab yeej siv tshuaj lom neeg hauv kev tu cev thiab kev lag luam * * kev ua haujlwm los tiv thaiv cov neeg ua haujlwm kev nyab xeeb yuav tsum tau ua tib zoo qhia cov tswv yim tshiab thiab cov tswv yim txhawm rau kom tsis txhob muaj kev phom sij tam sim ntawd, tab sis kuj yuav tsum xyuam xim kom tsis txhob muaj xwm txheej yav tom ntej. Tag nrho cov no yuav tsum tau ua kom tsis tu ncua thiab txhim kho los ntawm kev tsim cov kev cai thiab kev txhim kho cov neeg zoo.
