The meaning of the sign is indeed a health hazard and harmful to the human body, but it is not a guess. This sign comes from one of the nine danger symbols of GHS.
So, what is GHS? GHS refers to the Global Harmonized Classification and Laboratory System for Chemicals (GHS), which is a normative document issued by the United Nations to guide countries to control chemical hazards and protect human health and the environment.
You can enter the Globally Harmonized Classification and Labelling System for Chemicals in Google, and the first link will come out. Click it, and then click "About GHS" on the right side of the page to find relevant information.
In GHS, there are 28 hazard classifications, including 16 physical hazard classification, 10 health hazard classification and 2 environmental hazard classification.
CHS uses 9 hazard symbols to represent these 28 hazards.
Paste GHS hazard propaganda elements and safety data sheets into Baidu for compilation and use. After clicking the first link, open the slide file to page 9, and you will clearly see ... (with CordlessHandScanner) Committee on Human Settlements ... Among them, the United Nations Model Regulations on the Transport of Dangerous Goods uses six symbols and adds three graphic symbols, which are health hazard symbols for some health hazards, namely the exclamation mark symbol you asked and the environmental symbol representing environmental hazards.
After reading this page, click back until you see 15 page, and you will find the symbol you asked, where it is used and what are the nine symbols.
Baidu entered nine dangerous graphic symbols of GHS label elements, and the first link can also be found in the introduction.
Generally, after this health hazard sign appears, the following description will explain in detail what kind of health hazard it is.
I hope it is a reference for you. Good luck! ~