The hazard assessment is based on the U.S. EPA's DfE (Design for Environment) program, using the GreenScreen method to classify hazards into 5 major categories and 18 individual indicators, including:
Chronic Toxic Hazards
Acute Toxic Hazards
Environmental Toxicity
Environmental Fate and Transport
Physical Hazards
Each Hazard Is Rated On A Five Level Scale:
非常高危害 (very High, vH),給予5分。
高危害 (High, H),給予4分
中等危害 (Medium, M),給予3分。
低危害 (Low, L),給予2分。
非常低危害 (very Low, vL),給予1分。
To enhance visualization, the five major categories and their 18 hazard indicators are scored from 5 to 1 based on severity. A higher hazard receives a higher score. If the total score is high (indicating high hazard), the color appears closer to
深紅
; if the score is low (indicating low hazard), the color appears closer to
深綠
。資料使用旭日圖 (Sun burst chart呈現),內圈為五大類總分,如果該分類並無關於此化學物危害評估,則省略不顯示,以便聚焦危害資訊。點擊內圈五大類可放大檢視該分類下所有危害評估細項。
References
LT-1
Identified by the GreenScreen List Translator as Risk Level 1, meaning not recommended for use.
LT-P1
Possibly identified by the GreenScreen List Translator as Risk Level 1, meaning likely not recommended for use.
UNK
Identified by the GreenScreen List Translator as lacking sufficient data. Hazard assessment is recommended.
Hazard levels are classified into five categories:
A
: clearly maps to a single hazard level (high hazard); classification is definitive
B
: spans two levels (medium to high hazard); encompasses multiple hazard endpoints; classification is ambiguous
Hazard assessments are rated on five levels:
Very High Hazard (very High, vH)
High Hazard (High, H)
Medium Hazard (Medium, M)
Low Hazard (Low, L)
Very Low Hazard (very Low, vL)
Hazard Diagnostic Modules
The Hazard Diagnostic Module consists of the following four computational chemistry methods. The predicted toxicity alerts are for reference only and should be evaluated together with other available data.
Substructure Alerts
Similarity Alerts
Read-Across
Classification Models
No SMILES structure is available for this chemical; substructure alert calculation cannot be performed.
讀取中
讀取中
讀取中
Safer Alternatives
Safer alternatives are referenced from current safer chemical databases and software logic, divided into the following three categories:
The system compiles industrial uses of chemicals from the US EPA ChemView database and integrates them with the US EPA Safer Chemical Ingredients to create a safer alternatives list for each chemical. Chemicals may have multiple industrial uses, so the system uses an accordion-style display. Click the 'Suggested Safer Alternatives' tab to expand the table. If the use is broad (e.g., 'Commercial use'), the list may include more specific uses (e.g., 'Solvent'). If no information is available, refer to 'By Industrial Use (Full List)' for manual filtering.
Categorized by industrial use (full list). This list contains safer chemicals for industrial uses, not necessarily replacements for the chemical on this page. You may filter by industrial use via the search bar at the top right of this tab, e.g., filter by 'Antioxidants'. Source:
Safer Chemical Ingredients List
Categorized by structural similarity, requiring:
Find chemicals with similar functional groups based on structural similarity (Tanimoto coefficient ≥ 0.8), likely having similar functions.
Chemicals identified as lower risk by risk assessment, such as level 3, level 4, or insufficient data.
Practical substitution feasibility still requires domain knowledge and reference to physicochemical properties. For insufficient data (U), it means current hazard and risk assessment information is limited; thus, selection should be cautious and toxicology studies should be reviewed.
Based on real-world case studies. Source:
OECD SAAT
Based on substructure, the system lists chemicals with risk levels 3 (usable but safer alternatives may be sought), 4 (safer chemicals), or insufficient data (U: not enough data to determine risk level).
說明