N'ọnwa Febụwarị 2022, a na-eme nnwale ntụnyere uru nke "ntụgharị uzuzu uzuzu" na China. Ndị kọmitii nka nka nke China Environmental stoichiometry na Shanghai Insti haziri mmemme a.
Maka nchọpụta ntanye maka HEPA Filter, a maara nke ọma iji aerosol photometer maka nnwale. Taa, anyị ga-ewere ZR-6012 Aerosol Photometer dị ka ọmụmaatụ iji webata ụkpụrụ nchọpụta maka ...