I nā kaiapuni pili i nā pahū, pono ka hoʻohana ʻana i nā mea uila pahū, a pono e hui pū ʻia me kahi palapala hōʻoia hōʻoia pahū. Pono nā mea uila i koho ʻia no nā mines lanahu e hoʻopaʻa i ka hōʻoia palekana mai ka lanahu ma mua o ka waiho ʻia ʻana ma lalo o ka honua., he kauoha e pili ana i nā kānāwai palekana hana o Kina.
Ma waho aʻe o ka ʻāpana lanahu, ʻoihana e like me ka petrochemical, mea hao, a me ka hana pūʻali koa e hilinaʻi nei i nā lako uila hōʻike pahū no ka mālama ʻana i kahi kūlana hana palekana a pale i nā hanana pahū..