Sulfur dioxide (SO2) yog cov sulfur oxide ntau tshaj plaws. Nws yog ib qho tsis muaj xim tsis muaj roj nrog lub zog pungent tsw.
1. Ntuj qhov chaw
Volcanic Activity: Sulfur dioxide tso nyiaj rau ib feem tseem ceeb ntawm gases tso tawm los ntawm volcanic eruptions, nrog ib tug loj - nplai eruption tso tawm kaum tawm txhiab tons.
Hav zoov Hluav Taws thiab Biodecomposition: Ntuj combustion txheej txheem (xws li hav zoov hluav taws thiab decomposition ntawm organic teeb meem nyob rau hauv swamps) tso me me ntawm sulfur dioxide.
Geothermal Activity: Geothermal chav thiab cov dej kub kub kuj tso tawm cov kab ntawm sulfur dioxide, tab sis qhov kev faib ua feem tsawg heev.
2. Anthropogenic Sources (Main Sources)
Fossil Roj combustion
Coal Combustion: Thermal power plants and industrial boilers burners sulfur-muaj coal (sulfur content 0.5% to 3%), contributing about 70% of emissions.
Roj thiab Nqus Roj: Cov pa hluav taws xob los ntawm cov roj refining, kev tsim tshuaj lom neeg, thiab cov pa hluav taws xob diesel (tshwj xeeb yog siab heev - cov roj sulfur hnyav).
Cov txheej txheem kev lag luam
Metallurgy: Tso tawm thaum lub sij hawm smelting ntawm leej faj- muaj ores (xws li tooj liab, lead, thiab zinc) los ntawm hlau thiab tsis yog - ferrous hlau.
Kev tsim tshuaj lom neeg: Direct emissions los ntawm cov txheej txheem xws li sulfuric acid ntau lawm thiab phosphate fertilizer ntau lawm.
Lwm Cov Kev Ua Haujlwm Tib Neeg: Siab-kub muaj txheej txheem xws li pov tseg incineration thiab cement ntau lawm kuj tsim sulfur dioxide.
Kev thauj mus los: Diesel tsheb tso tawm thiab nkoj roj combustion. Txawm hais tias cov tsheb niaj hnub siv qis -sulfur diesel, emissions tseem tshwm sim.
Kev txheeb xyuas los ntawm 2025 qhia tias fossil fuel combustion account rau 70% atmospheric sulfur dioxide pollution, nrog cov thee combustion yog qhov tseem ceeb.Emissions los ntawm cov txheej txheem kev lag luam suav txog kwv yees li 21%, thaum kev thauj mus los thiab lwm qhov chaw ua ke suav nrog tsawg dua 10%.
3.Human Health Hazards of Sulfur Dioxide (SO₂)
(1). Tsawg Concentration (0.3-1 ppm)
Cov neeg feem coob tuaj yeem kuaj pom tus ntxhiab tsw phem, uas yuav ua rau hnoos me me thiab mob caj pas, tab sis feem ntau tsis ua rau mob hnyav.
(2). Nruab nrab Concentrations (5-10 ppm)
Cov tsos mob ua pa ua pa tseem ceeb tuaj yeem tshwm sim, xws li hnoos ntau ntxiv, ua pa nyuaj, mob hauv siab, thiab muaj peev xwm conjunctival congestion thiab tearing.
(3). Cov ntsiab lus siab (10-50 ppm)
Lub sij hawm luv luv - kis tau tuaj yeem ua rau mob hnyav, tshwm sim los ntawm hnoos hnyav, bronchospasm, pulmonary edema, thiab ua pa tsis ua haujlwm.
(4). Tsis tshua muaj siab Concentrations (50 ppm thiab siab dua)
Muaj peev xwm ua rau tuag taus thiab tsis nco qab, thiab thaum mob hnyav, tuaj yeem ua rau txoj sia - hem hauv feeb.
4. Cov lus pom zoo tiv thaiv
(1). Zam txhob nyob ntev hauv siab - ib puag ncig muaj kev pheej hmoo, xws li thaj chaw muaj kev lag luam thiab thaj chaw volcanically active.
(2) Txhim kho qhov cua nyob sab hauv tsev thiab tsis txhob cuam tshuam rau qhov chaw ua lag luam uas muaj sulfur dioxide.
(3) Hnav lub tshuab ua pa (ua tau raws li cov qauv kev tiv thaiv SO₂) thaum raug cov sulfur dioxide ntau ntau.
(4) Nruab ib qho onlinesulfur dioxide gas detectorkev soj ntsuam xyuas kom ntseeg tau tias cov pa roj carbon ntau ua tau raws li cov qauv hauv tebchaws.