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GreenScreen Hazard Assessments

For publicly assessable GreenScreens®, go to our Chemical Hazard Assessment Database.

About GreenScreen™

Clean Production Action, a non-profit environmental organization, created the GreenScreen™ for Safer Chemicals (GS) to help users evaluate chemicals and their potential degradation products against a range of toxicity, environmental fate, and physical/chemical endpoints. Chemicals receive a combined “benchmark score” based upon the assessments of 19 hazard endpoints. The GS places each chemical along a continuum of concern and assigns them one of four possible benchmarks. The result of this process enables chemicals to be compared with potential alternatives using a consistent and common template.

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Hazard Endpoints Table

Below is a table comparing the different hazard endpoints covered in GreenScreen™ assessments:

Human Health:  
Group I  
Carcinogenicity (C)
Mutagenicity & genotoxicity (M)
Reproductive toxicity (R)
Developmental toxicity (including developmental neurotoxicity) (D)
Endocrine activity (E)
Group II  
Acute mammalian toxicity (AT)
Systemic & organ effects toxicity including immunotoxicity (ST)  
Neurotoxicity (N)  
Sensitization: Skin (SnS)  
Sensitization: Respiratory (SnR)  
Irritation & corrosivity: Skin (IrS)  
Irritation & corrosivity: Eye (IrE)  
Ecological Toxicity:
Acute aquatic toxicity (AA)
Chronic aquatic toxicity (CA)  
Other ecotoxicity studies, when available (optional except for Benchmark 4) (Eo)
Environmental Fate:
Persistence (P)
Bioaccumulation (B)
Physical Properties:    
Reactivity (Rx)  
Flammability (F)  

1Not needed if the assessment is done solely for inorganic compounds since all of them are assumed to be persistent. Clean Production Action created specialized rules for addressing inorganic compounds.