Vatori vechikamu vepamusha munguva pfupi yapfuura vakati kugadzirwa kweiyo ethylene kunowedzera kugovera kabhoni, uye kugadzirwa kweUS butsil
Muna 2018, pakanga paine kushomeka kweButadiene kugovera muUnited States Crackers muna Kurume uye Chikunguru 2018, pakanga paine kuwedzeredza kwetsiva muEthylene mitengo yeEthance.
Kune mazhinji a 2018, maitiro akasimba mumitengo isina kuchena anotsigira mutengo wekusimbisa kwezvinhu zvevakadzvanywa. of cracker yakakonzerawo kuderera mumugove wekushanda kweiyo chirimwa
Kwemazhinji ehafu yechipiri ya 2018, kugadzirwa kwekaroni mana zviyero zvakaganhurirwa kubva kuUnited States
Kutarisira kumberi kwa199, kuwedzera kwemusika kuchakonzera mitengo yekudonha kuwanda. kugona kuchawedzera nemamiriyoni matanhatu emamiriyoni emamiriyoni pagore risati rasvika.}}
Sezvo kugona kweyunivhesiti inowedzera, kugadzirwa kweCarbon mana zvishandiso zvinowedzera, kunyangwe vazhinji vevhu rekupaza rinogona kungoita kuti jekere rakaderera rezvinyorwa zvakaderera
Iko kuteedzana kutumwa kwevatsva kunoita kuti uwedzere kugadzirwa kweButadiene muUnited States gore rakatanga kuyamwisa. kuwedzera kwekubatsira kwevakadzvanywa kwakavandudza hupfumi hwekupaza mari yekupaza, izvo zvakatanga kufambisa mari yeCarbon Rimwe ruoko, iyo nguva yechando mamiriro ekunze yaive inotonhora uye yemwaka yemwaka mukuda kwekuvaka kwekuvaka kwekuvaka kwakadzikira {}.
Muna 2019, iyo Downturn muMitengo yeMafuta Mafuta anozove nechokwadi chehupfumi hwekupaza mari yekugadzira