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Writer's pictureDaniel Jiménez

New York: Regulation of 1,4-Dioxane Levels in Commercial Products

New York State has taken a decisive step in environmental protection by implementing updated regulations resulting from amendments to Sections 35 and 37 of the Environmental Conservation Law (ECL). The regulations, originally adopted in 2019, set strict limits on the presence of the chemical compound 1,4-dioxane in household cleaning products, cosmetics and personal care items sold in the state.


These measures aim to mitigate the environmental and public health risks associated with this compound, which is considered a possible human carcinogen and an emerging contaminant in bodies of water.




Relevant Aspects of Regulation

The new regulations impose specific limits on the concentration of 1,4-dioxane in products commonly found in the home . These products include, among others, detergents, shampoos, soaps and creams. The regulations establish maximum permitted thresholds for this chemical compound, in accordance with international standards on chemical safety and human exposure.


One of the central pillars of the regulation is the implementation of procedures for manufacturers to request exemptions from these limits, provided they demonstrate that they have adopted reasonable and effective measures to minimise the presence of 1,4-dioxane in their products. This provision allows the industry the possibility of adjusting to the new rules without an immediate interruption in the supply chain, while maintaining the commitment to reduce environmental impact.


Technical and Scientific Criteria for Compliance

The regulation not only defines the quantitative limits of 1,4-dioxane permitted in products, but also sets out the technical procedures that manufacturers must follow to ensure compliance with these limits. In this regard, companies are required to use scientifically validated analytical methods to detect and measure the concentration of 1,4-dioxane. Approved methods include advanced chromatography and spectrometry techniques, which guarantee accurate and reproducible quantification of the compound.


For those companies seeking to apply for a temporary exemption, they are required to submit detailed information about the efforts made to reduce the presence of this contaminant in their production processes. In addition, during the exemption period, companies must provide technical information related to the methods used to detect 1,4-dioxane, including details of the laboratory carrying out the testing and a comprehensive description of the ingredients that contribute to the formation of the compound in question.


Environmental and Public Health Implications

1,4-Dioxane is an unintended byproduct formed in certain manufacturing processes, particularly those involving the ethoxylation of chemicals. Its persistence in the environment, as well as its solubility in water, raises significant concerns regarding the contamination of water resources. Long-term exposure to 1,4-dioxane has been linked to health risks, including liver and kidney damage, and a potential risk of cancer, reinforcing the need for more stringent controls on its industrial use.


With these measures, New York State seeks to balance the protection of the environment and public health with the continuity of industrial operations. The implementation of these regulations is an example of how environmental legislation can adapt to scientific and technological advances, promoting both sustainability and innovation in the manufacturing sector.



Conclusion

The introduction of strict limits on 1,4-dioxane in consumer products in New York represents a major step forward in environmental protection and public health. By regulating this chemical compound, a precedent is set for greater responsibility in industry regarding the control of pollutants, with a view to more sustainable development and less exposure to hazardous substances in everyday life.


The success of these measures will depend, in large part, on effective collaboration between regulators, scientists and industry to ensure a safer environment for all citizens.

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