• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2023 Fiscal Year Final Research Report

Development of pesticide ecotoxicological characterization factors consistent with toxic action modes and their application to crop protection decisions

Research Project

  • PDF
Project/Area Number 21K12345
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 64050:Sound material-cycle social systems-related
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Tang Longlong  国立研究開発法人農業・食品産業技術総合研究機構, 農業環境研究部門, 主任研究員 (30737359)

Co-Investigator(Kenkyū-buntansha) 林 清忠  国立研究開発法人農業・食品産業技術総合研究機構, 農業環境研究部門, 主席研究員 (40355475)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords生態毒性 / 農薬 / ライフサイクルアセスメント / 作用機構 / 種の感受性分布
Outline of Final Research Achievements

For comparative assessment of agricultural production systems based on LCA, it is essential to better consider the differences between components in the assessment of ecotoxic impact derived from pesticide use. Therefore, non-linear ecotoxicity characterization factors were first estimated for 109 active ingredients, which consider both the toxicity (HC50) and toxic mode-of-action (showing different species sensitivity distribution (SSD) slope) of the pesticide components. It was found that the slope of the SSD of the pesticide component significantly contributes to the difference among characterization factors of each component. Secondly, a case study estimating freshwater ecotoxicity impact of eight rice farms with a pest management strategy of switching from conventional to low inputs showed that non-linear ecotoxicity characterization factors yielded more appropriate field-level assessment results.

Free Research Field

ライフサイクル影響評価

Academic Significance and Societal Importance of the Research Achievements

持続可能な農業の実現に向けて、農薬使用に伴う生態系への影響を適切に評価されることが重要である。そのために、農薬成分の減量あるいは成分変更による影響削減効果を正確に評価し、農業のLCAに組み込まれていくことが求められる。本研究は、農薬成分の毒性だけではなく、成分の作用機構も考慮する非線形の生態毒性影響評価係数の算定方法を開発した。これにより、既存の線形係数(毒性のみ考慮)と比べて、農薬成分のSSDの傾きが影響評価係数に大きく影響することが明らかとなった。作用機構の考慮が成分間の違いをより精緻に捉えるため、非線形の生態毒性影響評価係数がより適切な圃場レベルの評価結果が得られることが示唆された。

URL: 

Published: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi