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Tarin abubuwan da ke haifar da gurɓacewar iska daga AP 42 tarin bayanai ne na Hukumar Kare Muhalli ta Amurka (EPA) game da gurbatar iska, wanda aka fara bugawa a shekarata 1968. As of 2018[update] , bugu na ƙarshe shine na 5th daga 2010.
 Tarin abubuwan dake haifar da gurbacewar iska daga AP 42 |
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AP 42 Compilation of Air Pollutant Emission Factors shine tarin abubuwan da ke fitar da gurbacewar iska, a wasu kalmomin lambobi waɗanda ke da alaƙa da adadin gurɓataccen abu da aka fitar a cikin sararin samaniya tare da wani aiki. Ma'aikatar Kiwon Lafiyar Jama'a ta Amurka ce ta fara tattara wannan tarin kuma ta buga shi a cikin shekarar 1968. A cikin shekarar 1972, an sake dubawa kuma an fitar da shi azaman bugu na biyu ta Hukumar Kare Muhalli ta Amurka EPA. A cikin shekarar 1985, bugu na huɗu na gaba ya kasu kashi biyu: Juzu'i na tun daga lokacin ya haɗa da ma'ana mai tsayayye da abubuwan fitar da tushen yanki, kuma juzu'i na II ya haɗa da abubuwan fitar da tushen wayar hannu . Juzu'i na I a halin yanzu yana cikin bugu na biyar kuma ana samunsa akan Intanet. Ba a ci gaba da jujjuya juzu'i na II kamar haka, to amma ana samun samfuran tarwatsewar iska ta hanya don ƙididdige hayaki daga ababan hawa da na ababan hawa da kayan aikin hannu akan yanar gizo.
A cikin amfani na yau da kullun na yau da kullun, Juzu'i na I na haɗar abubuwan da ake fitarwa ana kiransu da AP 42 kawai.
Abubuwan da ke fitar da gurɓataccen iska yawanci ana bayyana su azaman nauyin gurɓataccen gurɓataccen abu da nauyin raka'a, girma, nisa, ko tsawon lokacin aikin da ke fitar da gurɓataccen abu (misali, kilogiram na ɓarna da ke fitowa a kowace megagram na kwal da aka ƙone). Abubuwan da ke taimakawa wajen kimanta hayaki daga wurare daban-daban na gurɓataccen iska. Sannan A mafi yawan lokuta, abubuwan sune kawai matsakaicin duk bayanan da ake samu na inganci karɓuwa, kuma gabaɗaya ana ɗauka su zama wakilcin matsakaicin dogon lokaci.
Ma'auni don ƙididdige fitar da hayaki kafin a yi amfani da matakan rage hayaƙi shine:
kuma don fitar da hayaki bayan raguwa ana amfani da su:
| inda: | |
| E | = fitar da hayaki, a cikin raka'a na gurɓataccen abu a kowace raka'a na lokaci |
|---|---|
| A | = ƙimar aiki, a cikin raka'a na nauyi, ƙara, nisa, ko tsawon lokaci kowace naúrar lokaci |
| EF | = ma'aunin fitarwa, a cikin raka'a na gurɓataccen abu a kowace naúrar nauyi, ƙara, nisa, ko tsawon lokaci |
| ER | = ingantaccen rage yawan fitar da iska, a cikin % |
Ana amfani da abubuwan da ke haifar da fitar da iska ta hanyar ƙirar yanayi da sauran su don tantance adadin gurɓataccen iska da ake fitarwa daga tushe a cikin wuraren masana'antu.
| Babi na 1 | Tushen Konewa na Waje |
|---|---|
| Babi na 2 | Zubar da Sharar Datti |
| Babi na 3 | Tushen Konewar Cikin Gida |
| Babi na 4 | Tushen Asarar Haɓaka |
| Babi na 5 | Masana'antar Man Fetur |
| Babi na 6 | Masana'antu Tsarin Sinadarai Na Halitta |
| Babi na 7 | Tankunan Ma'ajiyar Ruwa |
| Babi na 8 | Inorganic Chemical Industry |
| Babi na 9 | Masana'antun Abinci da Noma |
| Babi na 10 | Masana'antar Kayan itace |
| Babi na 11 | Masana'antar Kayayyakin Ma'adinai |
| Babi na 12 | Masana'antar Karfe |
| Babi na 13 | Sources Daban-daban |
| Babi na 14 | Greenhouse Gas Biogenic Sources |
| Babi na 15 | Fashewar Makamai |
| Karin bayani A | Daban-daban Bayanai & Abubuwan Juya |
| Shafi B.1 </br> |
Bayanan Rarraba Girman Barbashi da Girman Abubuwan Fitarwa </br> don Zaɓaɓɓun Sources |
| Shafi B.2 | Rarraba Girman Barbashi Gabaɗaya |
| Shafi C.1 | Hanyoyi don Samfurin Samfurin Sama/Load ɗin Ƙura |
| Shafi C.2 </br> |
Hanyoyi don Binciken Laboratory na Surface/Ƙura mai girma </br> Ana Loda Samfurori |
Babi na 5, sashe na 5.1 ''Tsatar da Man Fetur'' ya tattauna ne game da fitar da gurɓataccen iska daga na'urori a sassa daban-daban na sarrafa matatun da kuma na'urorin sarrafa tururi da tanderu da injuna, Kuma sannan Table 5.1.1 ta haɗa da abubuwan da suka dace. Tebu 5.1.2 ya haɗa da abubuwan da ke fitar da iskar da ke gudu daga manyan hasumiya masu sanyaya jika a cikin matatun mai da na masu raba mai/ruwa da ake amfani da su wajen magance ruwan sharar matatar.
A fugitive iska gurbatawa watsi dalilai daga taimako bawuloli, bututu bawuloli, bude-ƙare da bututu Lines ko magudanun ruwa, piping flanges, samfurin sadarwa, da kuma like a kan famfo da kwampreso shafts an tattauna kuma sun hada da rahoton EPA-458 / R-95-017, "Protocol for Equipment Leak Emission Emission" wanda aka haɗa a cikin sashe na 5 na AP 42. Wannan rahoton ya haɗa da abubuwan fitar da hayaki da EPA ta haɓaka don matatun mai da kuma masana'antar sinadarai ta roba (SOCMI).
A mafi yawan lokuta, abubuwan da ke cikin babi na biyar 5 an haɗa su don yanayin da ba a kula da su ba kafin a aiwatar da tsarin rage fitar da iska da yanayin sarrafawa bayan an aiwatar da ƙayyadaddun hanyoyin rage fitar da iska.
Babi na bakwai 7 "Tsarin Ma'ajiyar Ruwa" an sadaukar da shi ga hanyoyin ƙididdige asarar da aka fitar daga ƙirar tanki guda shida da aka yi amfani da su don ajiyar ruwa na Organic: kafaffen rufin (a tsaye da a kwance), rufin iyo na waje, domed waje (ko an rufe) rufin iyo, rufin ciki mai iyo, sannan sararin tururi mai canzawa, da matsa lamba (ƙananan da babba). Cibiyar Man Fetur ta Amurka tare da haɗin gwiwar EPA ne suka samar da tsarin a Babi na 7.
Hukumar EPA ta samar da wata manhaja mai suna "TANKS" wacce ke aiwatar da dabarar babi na 7 don kididdige asarar hayaki daga tankunan ajiya. Fayil ɗin mai saka shirin tare da jagorar mai amfani, da lambar tushe ana samun su akan Intanet.
Babi na 5 da 7 da aka tattauna a sama suna kwatanta irin bayanan da ke cikin sauran surori na AP 42. Kuma Yawancin abubuwan da ke haifar da fitar da hayaki a Babi na 5 da tsarin lissafin hayaƙi a Babi na 7 da shirin TANKS su ma sun shafi sauran nau'ikan masana'antu da yawa ban da masana'antar mai.
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