Assessment Of Human Health Risk Due To Heavy Metals (Chrome And Lead) In Lettuce Grown At Khuc Luy's Vegetable Field, Dien Minh Commune, Dien Ban District, Quang Nam Province

This study has been carried out to assess the heavy metal contents of Cr and Pb in lettuce (Lactuca sativa L.) grown at Khuc Luy village's vegetable field. The results showed that the average contents of Cr (1.537 mg / kg) and Pb (6.529 mg / kg) in the soil did not exceed the permissible limits of GB 15618:1995 and QCVN 03:2008/BTNMT. The Cr content in all vegetable samples did not exceed the permissible limits of GB 2762: 2005, whereas the Pb content in the leafy samples taken at KL2 and KL4 exceeded the permissible limits of QCVN 8-2: 2011/BYT. The Cr content in the non-edible parts (shoots + roots) was lower than the edible part (leaves), which was in contrast with Pb. PLIsite and PLIzone, which were less than 1. This indicated that soil in this area was not contaminated by Cr and Pb. The TCs values of Cr (1.419) and Pb (2.028) exceeded the Kloke's suggested range. The HRI values of Cr and Pb were less than 1, which reveals that there is a relative absence of health risks associated with the consumption of the contaminated lettuce grown at Khuc Luy village