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Comparative Human-Ecotoxicological Impacts and Willingness to Pay: A Case of Pesticide Transition from Paraquat to Atrazine in Sweet Corn Cultivation in Thailand |
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| รหัสดีโอไอ | |
| Creator | 1. Patharanun Toolkiattiwong 2. Pasicha Chaikaew 3. Chidsanuphong Chart-asa |
| Title | Comparative Human-Ecotoxicological Impacts and Willingness to Pay: A Case of Pesticide Transition from Paraquat to Atrazine in Sweet Corn Cultivation in Thailand |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2565 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 15 |
| Journal No. | Special |
| Page no. | 50-55 |
| Keyword | Toxicity, Willingness to pay, Paraquat, Atrazine, Sweet corn |
| URL Website | https://tshe.org/main/ea-journal-online |
| Website title | EnvironmentAsia Journal |
| ISSN | 1906-1714 |
| Abstract | Prohibiting the use of paraquat has led to the shift to atrazine application. This has led to changes in human-ecological impacts, but they have not been explored yet. The related monetary values in farmer's perspective also remained unknown. In this study, human toxicity and freshwater ecotoxicity impacts in soil cultivation were evaluated using the USEtox 2.12 model. The willingness to pay (WTP) was employed to explain farmers' values of the impacts of changes. The questionnaire surveys of sweet corn farmers in Lopburi, Saraburi and Nakhon Ratchasima Provinces were ministered by two telephone interviews. The results from 41 respondents revealed that after the ban the average pesticide use of 0.86 ? 0.27 kg active ingredient (a.i.)/rai/year for paraquat was substituted by 0.92 ? 0.43 kg a.i./rai/year for atrazine. The corresponding human toxicities were slightly higher on the paraquat use (1.33?10e6 ? 4.21?10e7 disability adjusted life years (DALY)/kg emitted) than the atrazine use (1.30?10e6 ? 6.21?10e7 DALY/kg emitted). On the other hand, the corresponding ecological toxicity were substantially lower on the paraquat use (68.37 ? 21.7 potentially disappeared fraction of species (PDF) cu m day) than the atrazine use (1262.67 ? 600.83 PDF cu m day). The average WTP to reduce human and ecological toxicity from the current pesticide use was 216.46 ? 132.28 baht/year and 162.44 ? 111.74 baht/year, respectively. These findings would provide helpful information for relevant authorities to enhance the sustainable management of pesticide uses. |
