Where do these hazard assignments come from?
The health and environmental hazards in the hazard summary table have been associated with this substance in hazard lists developed by scientific bodies such as the US EPA or International Agency for Research on Cancer (IARC).
The hazard levels (e.g. high, moderate, or low concern) are determined by the GreenScreen List Translator for most lists and by HBN for the remainder. If there are multiple listings for one endpoint, the hazard level displayed is the highest for the most authoritative category of lists.
See the Overview of the GreenScreen Method and the Pharos Chemical and Material Library system description for more information.
How do I see all the hazard lists the chemical is on?
If there are multiple hazard listings for an endpoint, there will be a button under “Other Lists” in the full Hazard Lists table indicating how many other listings exist for this chemical. Clicking on this button will expand a list of all hazard listings for the endpoint.
What are the asterisks in the Hazard List table?
In most instances, they indicate a hazard is assigned because the chemical is a member of a group. Scientific hazard lists sometimes specify a chemical group (such as trimethyltin compounds) without a defined list of CASRNs. For these, Pharos creates a list of CASRNs that meet the group criteria. Move your cursor over the asterisk for the group name, and click the asterisk to see the group and its definition. See the Compound Group Population Project for more information on how these groups are determined.
Less frequently, an asterisk may indicate a hazard is assigned because the chemical has been identified as a synonym of another chemical that has been specified by the hazard list. In these cases, moving your cursor over the asterisk will indicate the synonym chemical name and CAS number, and clicking on it will redirect to that chemical’s complete profile.
How can I learn more about the hazard lists?
Click on any hazard list name in the full Hazard Lists table for a detailed description and full list of chemicals associated with that list. Or browse or search the complete list of Hazard Lists used in Pharos. See the Pharos Chemical and Material Library system description for additional details.