To analyze the formaldehyde's pollution,its source and improving air quality in shopping mall in Anqing,Anhui Province,fifty samples from 5 shopping malls are collected in five days. The results show that( 1) the maximal concentrations of formaldehyde in all clothing store samples is 0. 19 mg / m3 with exceeding standard rate of 10%,( 2) the concentrations of formaldehyde in all furniture store samples is from 0. 03 to 0. 10 mg / m3 with exceeding standard rate of 10%,( 3) the concentration of formaldehyde ...