0102030405
Kafukufuku wa Yunivesite ya Stanford: Kuphika ndi Masitovu a Gasi Okhudzana ndi Khansa. Chitani Zinthu Zitatu Izi Kuti Muchepetse Chiwopsezo Chanu!
2026-03-06
Chidule
Kafukufuku wa ku Stanford University akuwonetsa kuti masitovu a gasi ndi propane amatulutsa benzene, yomwe ndi khansa ya gulu loyamba yolumikizidwa ndi khansa ya m'magazi, pamlingo womwe ungapose utsi wogwiritsidwa ntchito ndi munthu wina.
Kuphika kwa mphindi 45 zokha kungapangitse kuti kuchuluka kwa benzene m'nyumba kupitirire malire a thanzi, ndipo mpweya umakhala m'zipinda zogona kwa maola oposa asanu ndi atatu.
Mosiyana ndi ma cooktop a induction, omwe amatulutsa pang'ono kwambiri, ma stoves a gasi amakhala pachiwopsezo chachikulu pa thanzi pomwe kukhudzana kulikonse kungakhale koopsa.
Ngakhale ambiri amakhulupirira kuti utsi wa mafuta ophikira okha ndi omwe amayambitsa khansa, mpweya wachilengedwe womwe umagwiritsidwa ntchito m'zitofu nawonso ndi womwe umayambitsa khansa. Kupatula kutulutsa carbon dioxide ndi methane yomwe ingayambitse khansa, zitofu za gasi zimapanga mankhwala owopsa monga mpweya wa carbon monoxide (CO2), zomwe zimalepheretsa kupuma kwa maselo; formaldehyde (HCHO), chomwe chimayambitsa khansa; nayitrogeni dioxide (NO2), vuto la kupuma lomwe limagwirizanitsidwa ndi mphumu; ndi benzene (C6H6).
Pofuna kuchepetsa vutoli, akatswiri amalimbikitsa njira zitatu: kugwiritsa ntchito bwino mpweya wozizira pogwiritsa ntchito mafani ndi kutsegula mawindo kapena mpweya wozizira m'nyumba, kusunga zitofu zopanda mafuta, ndi kugwiritsa ntchito zipangizo zamagetsi monga ma air fryer kuti muchepetse kuyaka kwa mpweya.
Kuphika kwa mphindi 45 zokha kungapangitse kuti kuchuluka kwa benzene m'nyumba kupitirire malire a thanzi, ndipo mpweya umakhala m'zipinda zogona kwa maola oposa asanu ndi atatu.
Mosiyana ndi ma cooktop a induction, omwe amatulutsa pang'ono kwambiri, ma stoves a gasi amakhala pachiwopsezo chachikulu pa thanzi pomwe kukhudzana kulikonse kungakhale koopsa.
Ngakhale ambiri amakhulupirira kuti utsi wa mafuta ophikira okha ndi omwe amayambitsa khansa, mpweya wachilengedwe womwe umagwiritsidwa ntchito m'zitofu nawonso ndi womwe umayambitsa khansa. Kupatula kutulutsa carbon dioxide ndi methane yomwe ingayambitse khansa, zitofu za gasi zimapanga mankhwala owopsa monga mpweya wa carbon monoxide (CO2), zomwe zimalepheretsa kupuma kwa maselo; formaldehyde (HCHO), chomwe chimayambitsa khansa; nayitrogeni dioxide (NO2), vuto la kupuma lomwe limagwirizanitsidwa ndi mphumu; ndi benzene (C6H6).
Pofuna kuchepetsa vutoli, akatswiri amalimbikitsa njira zitatu: kugwiritsa ntchito bwino mpweya wozizira pogwiritsa ntchito mafani ndi kutsegula mawindo kapena mpweya wozizira m'nyumba, kusunga zitofu zopanda mafuta, ndi kugwiritsa ntchito zipangizo zamagetsi monga ma air fryer kuti muchepetse kuyaka kwa mpweya.
Kodi masitovu a gasi amatulutsa benzene yochuluka bwanji?
Ma uvuni a gasi amphamvu kwambiri ndi ma uvuni (omwe ali pa 350 °F) amatulutsa pafupifupi 2.8 ndi 5.8 μg ya benzene pamphindi, motsatana. Kwa iwo omwe amagwiritsa ntchito gasi wamadzimadzi wa petroleum (LPG), mitengo yake ndi 5.5 ndi 6.5 μg pamphindi.
Deta ikusonyeza kuti kuchuluka kwa benzene m'nyumba kuchokera ku zitofu za gasi kumatha kupitirira kuchuluka komwe kumapezeka mu utsi wa gasi. Mosiyana ndi zimenezi, ma cooktops opangidwa ndi induction amatulutsa benzene yochepa kwambiri—ndi 1/25 mpaka 1/10 yokha ya yomwe imachokera ku zitofu za gasi—zomwe n'zochepa kwambiri.
Deta ikusonyeza kuti kuchuluka kwa benzene m'nyumba kuchokera ku zitofu za gasi kumatha kupitirira kuchuluka komwe kumapezeka mu utsi wa gasi. Mosiyana ndi zimenezi, ma cooktops opangidwa ndi induction amatulutsa benzene yochepa kwambiri—ndi 1/25 mpaka 1/10 yokha ya yomwe imachokera ku zitofu za gasi—zomwe n'zochepa kwambiri.
Kugwiritsa ntchito chitofu cha gasi kwa mphindi 45 zokha kungapangitse kuti milingo ya benzene kukhitchini ipitirire miyezo ya thanzi. M'nyumba zotseguka kapena zitseko zikasiyidwa zotseguka, benzene imasamukira ku zipinda zogona. Pakatha maola 8 kuchokera pamene kuphika, milingo ya benzene m'chipinda chogona imatha kufika pa 2.8 ppbv—kuchuluka nthawi 23 kuposa milingo yophikira isanaphike—kumene imakhalapo ndipo imayambitsa mavuto aakulu.
Kodi tingaphike bwanji chakudya chotetezeka komanso chotsika mtengo cha Benzene?
1. Pumulani Bwino Mukamaphika Mpweya wabwino ndiyo njira yothandiza kwambiri. Pofuna kupewa kuti benzene isafalikire, tsekani zitseko za m'chipinda chogona ndipo tsegulani mawindo a kukhitchini. Ngati mpweya sukuyenda bwino, gwiritsani ntchito fani kuti muwonjezere mpweya kapena ikani chotenthetsera chonse.Njira Yopumira Mphepo M'nyumbaMukatha kuphika, sungani fani ndi mawindo otseguka ndipo mutuluke kukhitchini kwakanthawi kuti musawononge kuwala. Dziwani: Zophimba za range zimakhalabe zofunika kwambiri pochotsa utsi wa mafuta, zomwe zimawonjezera chiopsezo cha khansa ya m'mapapo.
2. Tsukani Chitofu Nthawi Zonse Mafuta otsala pa chitofu amawonjezera mwayi woti benzene ituluke. Mpweya ukatuluka kukhitchini, pukutani pamwamba pa chitofu ndi ziwiya zophikira kuti muchepetse mpweya woipa womwe ungatuluke.
3. Gwiritsani Ntchito Zipangizo Zina Zakukhitchini Kukazinga ndi kuwotcha kwambiri kumapanga benzene yambiri. Ganizirani kusintha kugwiritsa ntchito ma cooktops a induction pogwiritsa ntchito njira izi. Kapena, gwiritsani ntchito ma air fryer kapena ma cookers a mpunga amagetsi kuti muchepetse kudalira ma giya a gasi ndikuchepetsa chiopsezo chanu.
FAQ
1. Kodi benzene yochokera ku zitofu za gasi ndi yoopsa kwambiri kuposa utsi wa mafuta?
Zonsezi ndi zoopsa. Ngakhale kuti utsi wa mafuta umagwirizanitsidwa ndi khansa ya m'mapapo, benzene ndi khansa ya m'gulu loyamba yomwe imagwirizanitsidwa makamaka ndi khansa ya m'magazi monga khansa ya m'magazi, ngakhale itakhala yochepa kwambiri.
2. Kodi chotchingira mpweya choterechi chingathetse vuto la benzene?
Osati kwathunthu. Ma hood a range amathandiza, koma nthawi zambiri amalephera kujambula zinthu zonse zomwe zimayatsidwa ndi mpweya. Kuphatikiza ndi mawindo otseguka ndi mafani kumakhala kothandiza kwambiri.
3. Kodi benzene imangokhala kukhitchini kokha?
Benzene imalowa mosavuta m'zipinda zogona ndi m'malo okhala, komwe imatha kukhalabe ndi kutentha kwakukulu kwa maola opitilira 8 chitofu chikazimitsidwa.
4. Kodi ndiyenera kusintha kugwiritsa ntchito chophikira cha induction?
Ngati n'kotheka, ma cooktop opangidwa ndi induction amatulutsa benzene yocheperako nthawi 10 mpaka 25 kuposa ma stove a gasi, zomwe zimapangitsa kuti ikhale njira yoyera komanso yotetezeka kwambiri yopezera mpweya wabwino m'nyumba.
Buku lothandizira:
1.Kafukufuku akupeza kuti kuyaka kuchokera ku zitofu za gasi kungakweze kuchuluka kwa mankhwala ogwirizana ndi khansa ya m'magazi m'nyumba
2.Kuyaka kwa Gasi ndi Propane Kuchokera ku Masitovu Kumatulutsa Benzene Ndipo Kumawonjezera Kuipitsidwa kwa Mpweya M'nyumba
3.Mukuda nkhawa ndi kuipitsidwa kwa kukhitchini? Fan ya zenera ndi njira yotsika mtengo yokonzera zinthu