Consumers' Willingness to Pay for Rice from Remediated Soil: Potential from the Public in Sustainable Soil Pollution Treatment

Int J Environ Res Public Health. 2022 Jul 22;19(15):8946. doi: 10.3390/ijerph19158946.

Abstract

Remediation of polluted soil on arable land is mostly funded by governments, with the understanding that the public's willingness to pay for food produced on remediated soil can help establish a soil remediation model with more stakeholders. In contrast to previous studies that have focused on soil-remediation technologies' diffusion, this study employs choice experiments to evaluate market preferences for crops grown from lands of varying quality that are reflected in consumers' willingness to pay (WTP). The results show that consumers are willing to pay a small premium for rice labeled with remediated-soil claims, but the WTP for remediated-soil claim is less than that of an uncontaminated-soil claim. Consumers' WTP for remediated-soil claim increases by 29.03% when combining with a well-known brand, and it increases by 71.17% when information is provided about the efficacy of cadmium and heavy-metal-pollution remediation; however, combining with the region-of-origin label does not increase WTP. We also find that, in early stages of promotion, online stores may reach target consumers more easily. Based on these results, we propose four implications for policymakers.

Keywords: arable soil remediation; choice experiment; consumers’ willingness to pay; heavy metal pollution; information intervention; public participation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Consumer Behavior*
  • Environmental Pollution
  • Oryza*
  • Soil

Substances

  • Soil

Grants and funding

This research was funded by National Science Foundation of China 72003008.