Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Determination Method of the Criteria and the Hazard Category for Upper and Lower Tier Qualifying Quantities of the Toxic Substance

유독물질 상위 및 하위규정수량의 기준 및 위험 범주 선정 방안

  • Hyodong, Kim (Department of Safety and Health Convergence Engineering, Soongsil University) ;
  • Kyoshik, Park (Department of Safety and Health Convergence Engineering, Soongsil University)
  • 김효동 (숭실대학교 안전.보건융합공학과) ;
  • 박교식 (숭실대학교 안전.보건융합공학과)
  • Received : 2022.08.05
  • Accepted : 2022.10.31
  • Published : 2022.12.31
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Abstract

Qualifying quantities (upper tier (UT) and lower tier (LT)) are designated for the regulation of toxic substances. In this study, we aimed to establish systematic criteria for the qualifying quantities by comparing the South of Korea chemical control act with the European Seveso III Directive (Seveso III). In Seveso III, qualifying quantities are defined as "hazard categories" applying GHS (Globally Harmonized System of Classification and Labelling of Chemicals), and LTR (lower-tier requirements) and UTR (upper-tier requirements) are determined. The Pro HC (proposed hazard categories) were relevant to the GHS classification of toxic substances and were compared with the currently regulated qualifying quantities. Furthermore, we estimated the Pro LTR (proposed lower-tier requirements) and Pro UTR (proposed upper-tier requirements) corresponding to each Pro HC. Consequently, it was supposed that LT and UT were selected based on GHS like those of Seveso III. Therefore, designation criteria for qualifying quantities should be established by setting the Pro HC such as in Seveso III, rather than designating the qualifying quantities of toxic substances by itself individually. In addition, qualifying quantities should not be delegated to GHS classifications (H302, H341, H411) that do not meet the criteria for the designation of toxic substances, and the corresponding substances should be excluded from classification as toxic substances. This study provides insights into the selection of hazard categories and criteria for qualifying quantities of toxic substances.

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References

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