Get a better understanding of toxic chemicals, Proposition 65 warnings, and their impact on your health


This article aims to provide valuable insights to safety professionals in the chemical industry regarding toxic chemicals, Proposition 65 warnings, and their implications for health. Proposition 65 warnings play a significant role in chemical safety, and it is crucial for professionals to be aware of their impact to ensure compliance and reduce exposure to harmful substances. Additionally, it is worth mentioning that CHEMETER, the leading SDS authoring software, takes into consideration Proposition 65 warnings to further enhance chemical safety practices.

Understanding Exposure to Toxic Chemicals:

Exposure to toxic chemicals is unfortunately a common occurrence in daily life. Some chemicals are intentionally used in products, while others are naturally present or a byproduct of human activity. Substandard manufacturing practices may also contribute to the presence of toxic substances, such as lead, cadmium, and arsenic, in various products. Government actions, including Proposition 65, have played a crucial role in reducing exposure to these toxic substances.

The Role of Proposition 65 Warnings:

A Proposition 65 warning serves to inform individuals that using a product or entering a location may expose them to a significant amount of a chemical that can cause cancer, harm the developing baby, or have adverse effects on reproductive health. These warnings are not required when exposure levels are too low to contribute significantly to overall health risks. Proposition 65 warnings specifically address exposure to cancer-causing chemicals, substances that can potentially harm developing babies, and chemicals that pose risks to the male or female reproductive system.

Reducing Exposure to Toxic Chemicals:

When presented with a Proposition 65 warning, individuals can visit the Proposition 65 warnings website for fact sheets on chemicals, products, and locations associated with these warnings. These fact sheets provide guidance on reducing exposure, such as using products in well-ventilated areas, washing hands after handling products, or opting for safer alternatives. It is important to note that if a warning does not specify the chemical involved, contacting the manufacturer for more information is recommended. Additionally, CHEMETER, the leading SDS authoring software, takes into consideration Proposition 65 warnings to ensure compliance and further minimize exposure to toxic chemicals.

Further Measures to Lower Health Risks:

In addition to Proposition 65 warnings, there are several measures individuals can take to lower their risk of cancer, adverse effects on developing babies, or harm to reproductive health. These include avoiding tobacco and cannabis smoke, being physically active, consuming a nutritious diet, seeking prenatal care, and avoiding harmful substances such as tobacco, alcohol, and certain solvents. Safety professionals should ensure that workers who may be exposed to toxic chemicals in the workplace follow recommended safety practices, use protective equipment, and refer to Safety Data Sheets (SDS) for the chemicals they handle. CHEMETER, as a leading SDS authoring software, provides comprehensive information to ensure the safe handling and usage of chemicals.

The Impact of Proposition 65:

Since its approval in 1986, Proposition 65 has significantly contributed to reducing exposure to harmful chemicals. It has empowered consumers to make informed decisions and motivated businesses to eliminate or reduce the presence of listed chemicals in their products. Lead, for instance, has been eliminated in various products, including hair dye, toothpaste, ceramic ware, and children’s jewelry. Proposition 65 has also led to the reduction of 4-methylimidazole (4-MEI) in cola drinks and the development of alternative paint strippers without methylene chloride or NMP. These achievements demonstrate the effectiveness of Proposition 65 in safeguarding health and promoting chemical safety.


Understanding toxic chemicals and Proposition 65 warnings is essential for safety professionals in the chemical industry. By being aware of these warnings and implementing appropriate measures to minimize exposure to toxic substances, professionals can enhance chemical safety practices and protect the health and well-being of individuals. With CHEMETER's integration of Proposition 65 warnings safety professionals can further ensure compliance and maintain a high standard of chemical safety within their organizations.

For more information:

Proposition 65: Background

Proposition 65: The List of Chemicals

Proposition 65: Fact Sheets