Objective: To study the quality and safety of cultivated products in leather industrial zone. Methods: The heavy metal elements Pb, Cd, Ni and Cr in the vegetables were determined by ICP-AES after HNO3-H2O2 digestion. The pollution degree was evaluated by Nimerlo composite index. Results: The detection limits for Pb, Cd, Ni and Cr was 0.3–4 mg/L, with coefficients of variation ranging from 0.59% to 4.48%, and the recovery rates of the metal elements from spiked samples were 86.4%–103.5%. Nimerlo composite i...