Procjena rizika za zdravlje zbog teških metala u tlu na području rudarenja olova i cinka u provinciji Hunan (Kina)

Eighty-two soil samples were collected, and As, Pb, Cd, Zn, Cu and Ni were analysed for their concentrations, potential ecological risks and human health risks. The average concentrations of As, Pb, Cd and Zn exceeded their corresponding limits prescribed by the Chinese National Soil Environmental Quality Standard III, while Cu and Ni were far less than prescribed. The potential ecological risk index results indicated that Cd showed severe potential ecological risk. The human health risk assessment indicated that 80.49 % of the soil samples expressed acceptable non-carcinogenic risks, while 19.51 % of the soil samples expressed unacceptable non-carcinogenic risks. The research area represents unacceptable carcinogenic risks, the major contributor of the risk being As. Of the soil samples, 34.15 % posed acceptable carcinogenic risks, and 65.85 % posed unacceptable carcinogenic risks. This work is licensed under a Creative Commons Attribution 4.0 International License.Koncentracija As, Pb, Cd, Zn, Cu i Ni te određena je u 82 uzorka tla te procijenjen potencijalni ekološki rizik i rizik za ljudsko zdravlje. Prosječna koncentracija As, Pb, Cd i Zn prelazi granicu zadanu standardima GB15618-1995 III, dok je bakra i nikla bilo znatno manje. Za kadmij je utvrđen velik indeks potencijalnog ekološkog rizika. Prema procjeni rizika za ljudsko zdravlje 80,49 % uzoraka tla pokazuje prihvatljiv nekarcinogeni rizik. Istraživano područje predstavlja neprihvatljiv karcinogeni rizik, čemu najviše doprinosi arsen. Neprihvatljiv karcinogeni rizik pokazuje 65,85 % uzoraka tla. Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna