March 27, Waaxda Gobolka Anhui ee deegaanka iyo deegaanka ayaa qabtay shir jaraa'id oo ay ku dhawaaqday in "Anhui Gobolka Anhui Cement Industry Heerarka Wasakhaysan hawada wasakhaysan" (halkan ka dib loo tixraaco "Standards") ayaa si rasmi ah loo hirgeliyey laga bilaabo Abriil 1st."Standard" wuxuu qeexayaa in walxaha qayb ka ah, sulfur dioxide, iyo nitrogen oxides ee la sii daayo ay yihiin 10, 50, iyo 100 mg / m3 siday u kala horreeyaan.Sida heerka qasabka ah waxaana la hirgelin doonaa Abriil 1, 2020. Tani waxay siinaysaa shuruudo sare oo warshadaha sibidhka si ay u isticmaalaan taageerada qalabka ilaalinta deegaanka.