This study examines the risks posed by the on-site reactivity of hazardous chemicals, focusing on high-risk accident scenarios and response system improvements. Using cases like TATP and VX, it analyzes the accessibility and combination potential of precursor chemicals that are not inherently hazardous but can become highly dangerous under specific conditions. Scenario-based qualitative risk assessments reveal critical gaps in South Korea’s current safety management, including insufficient anticipatory regulations, limited detection capabilities for reactively synthesized agents, and fragmented inter-agency coordination. The study highlights the need for a proactive, integrated approach incorporating real-time precursor tracking, advanced detection technologies, and joint scenario-based response training. By shifting from static substance control to risk-based preparedness, this research offers strategic recommendations for enhancing chemical accident prevention and response in complex facility environments.

Abstract
1. 서 론
2. 이론적 배경 및 선행연구 검토
    2.1 유해화학물질의 반응성과 사고 특성
    2.2 전구체 조합형 사고 개념과 이론
    2.3 국내외 관련 선행연구 검토
3. 고위험 사고 시나리오 분석
    3.1 유해화학물질 반응 사고 사례 분석
    3.2 사고 시나리오 유형화
    3.3 시나리오 기반 위험도 평가
4. 국내 대응체계의 구조적 한계
    4.1 법·제도적 대응의 한계
    4.2 기술적 대응의 한계
    4.3 기관 간 공조 및 지휘체계 미흡
5. 대응체계 개선을 위한 전략 제안
    5.1 전구체 기반 통합관리체계 구축
    5.2 탐지 및 경보 기술 고도화
    5.3 다기관 공조 기반 매뉴얼 정비 및 훈련 강화
6. 결론 및 제언
7. References
저자 소개

• 김규환(인천대학교 안전공학과) | Kyu-Hwan Kim (Department of Safety Engineering, Incheon National University)
• 송창근(인천대학교 안전공학과) | Chang Geun Song (Department of Safety Engineering, Incheon National University) Corresponding author