Abstract
The chemical footprint of a product is an important factor for evaluating human toxicity and determining ecotoxic effects caused by chemical pollutants in the entire production cycle and is the premise and effective means to carry out the identification, assessment, and control of chemical, environmental risk. The study reviewed the progress of research on chemical and product chemical footprints. It unified the key issues such as accounting boundaries, data lists, accounting methods, and result evaluation of product chemical footprint calculation. On this basis, we propose methods for evaluating product chemical footprints, providing a normative reference for enterprises and relevant research institutions. The future research is likely to obtain innovative results in the research and application of chemical footprint labels, research on characterization factor calculation methods for chemical substances, construction and standardization of chemical use, and emission database and promotion of a chemical-based guarantee mechanism for environmental management.
Highlights
The overuse of chemicals can have serious impacts on human health and ecosystem stability
Three methods are used in characterizing product chemical footprint, namely, the score system, the chemical footprint calculation method based on USEtox and LCA
A flow chart of product production and manufacturing is established, the boundaries of product chemical footprint accounting are delineated, a data list is constructed based on the mechanism of chemical input conversion, the chemical footprints of products located in the same region, and those located in different regions in the production area are proposed and a comprehensive evaluation method for human toxicity and ecotoxicity is constructed
Summary
The overuse of chemicals can have serious impacts on human health and ecosystem stability. Industry Whole Life Cycle Assessment(LCA) Working Group (CNTAC-LCA),” which includes private companies and academic institutions, to further promote energy saving and emission reduction of enterprises and products through the measurement and analysis of product carbon footprint, chemical footprint and other environmental indicators through the LCA evaluation system and tools for textile products [13]. The contribution of this study is to unify the key issues such as accounting boundary, research method, and evaluation of product chemical footprint, so as to strengthen the normality, operability, and process of research and improve the risk identification, assessment, and management of industrial chemicals in the product production process
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