Cika wannan jumla: Bioremediation na gurɓataccen yanayin mai shine tsari wanda ake amfani da hanyoyin rayuwa a cikin ƙananan ƙwayoyin cuta ko tsire-tsire don lalata ko ɓoye hydrocarbons mai guba, ƙarfe mai nauyi, da sauran mahaɗan ƙwayoyin cuta masu haɗari da aka samo a cikin burbushin halittu. Rashin man fetur yana faruwa sau da yawa a matakai daban-daban tare da dukkan bangarorin sarkar samar da man fetur, yana gabatar da hadaddun batutuwa ga muhalli da lafiyar jama'a. Duk da yake hanyoyin tsaftacewa na gargajiya kamar su sinadarai ko sarrafawa da cirewa sau da yawa suna haifar da sakamako mai sauri, bioremediation ba shi da aiki sosai, tsada, kuma yana hana lalacewar sinadarai ko na inji. Inganci da tasiri na ƙoƙarin bioremediation sun dogara ne akan kiyaye kyakkyawan yanayi, kamar pH, ƙarfin RED-OX, zazzabi, danshi, yawan iskar oxygen, wadatar abinci mai gina jiki, abun da ke cikin ƙasa, da tsarin gurɓataccen abu, don kwayar halitta da ake so ko hanyar ilimin halitta don sauƙaƙe halayen. Manyan nau'ikan bioremediation guda uku da aka yi amfani da su don zubar da man fetur sun haɗa da gyaran microbial, gyaran gyare-gyare, da mycoremediation. An aiwatar da bioremediation a cikin manyan man fetur da yawa da suka hada da 1989
Hadarin Exxon Valdez inda amfani da taki a kan rairayin bakin teku ya kara yawan yawan kwayoyin halitta.