This project aimed to improve the heavy metal polluted restricted farmlands in Taoyuan. Remediation of the polluted farmland including soil exchange method and soil dilution method, and the former was mainly one. Aforementioned 129 farmlands were located in Taoyuan district and Luzhu District. By the end of this project, tasks that were finished included (1) submitting a work plan, off-site treatment plan, monthly performance reports, daily activity logs, and progress reports, (2) holding discussions for farmers and landholders, (3) re-confirming the degree of heavy metal pollution of farmlands, (4) carrying site remediation by soil exchange and dilution method, self-verification, third-party-verification, fertilization, and finally (5) lifting site restriction. All work was conducted according to the contract. Besides, Taoyuan City Environment Protection Department (TYEPB) also held discussions at regular intervals to know well the work. Moreover, to avoid abnormal use of the restricted farmlands, we went around and inspected once two month. The achievements of this project included (1) re-confirming the degree of heavy metal pollution on 129 polluted farmlands. (2) holding 1 terms of discussions for farmers and landholders. (3) submitting off-site treatment plan. (4) analyzing soil fertility for 129 farmlands. (5) environmental monitoring from first quarter of 2020 to third quarter of 2021. (6) carrying site remediation on 129 numbers (19.3982 hectares) by soil exchange and dilution method. (7) passing self-verification, third-party-verification for 129 numbers of farmlands. (8) recovering soil fertility for 129 numbers of farmlands.

soil dilution method、heavy metal pollution、remediation of polluted farmlands