Ewubere ebe a na-ahụ maka ọgwụgwọ mmiri na Chengdu Pujiang County na 2018, na osisi ahụ anabatala usoro ọgwụgwọ oxidation dị elu karị. N'ime olulu oxidation nke osisi ahụ, ejiri okpu mbụ fluorescent nke Hash II ebubata na United States na mbụ. Agbanyeghị, ahụrụ ya n'otu n'otu n'otu ebe ahụ na nha nsonaazụ nke mita oxygen gbazere na fluorescence bụ nke Hash. Ugbu a usoro fluorescence anyị gbazere ikuku oxygen ejirila nke ọma tinye n'ọrụ n'ime ụlọ nsị.
