Safety evaluation of recycling process used to produce recycled pulp for adult paper diapers
| Autor: | Asako Fukushima, Takeharu Uchida, Shigeo Imai, Ritsuko Katagiri, Satoko Ishii, Mayumi Sakunaga, Isamu Kuribara, Mitsuhiro Wada |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010501 environmental sciences
engineering.material Toxicology 030226 pharmacology & pharmacy 01 natural sciences 03 medical and health sciences 0302 clinical medicine stomatognathic system Humans Recycling 0105 earth and related environmental sciences Polyethylene Terephthalates United States Food and Drug Administration business.industry Pulp (paper) General Medicine Human decontamination Contamination Food safety Pulp and paper industry United States stomatognathic diseases Human exposure engineering Environmental science Diapers Adult business |
| Zdroj: | Regulatory Toxicology and Pharmacology. 122:104909 |
| ISSN: | 0273-2300 |
| DOI: | 10.1016/j.yrtph.2021.104909 |
| Popis: | Eight contaminants were used to perform a surrogate contamination test to evaluate safety of the process for producing recycled pulp for adult paper diapers. We performed a safety evaluation of the recycling process for producing recycled pulp following the European Food Safety Authority safety assessment for polyethylene terephthalate (PET) bottles using recycled PET. We also compared the first tier safety limit established on the basis of TTC (Climit) in the pulp that contained recycled pulp with residual contaminant concentrations (Cres). If Climit > Cres, there is no concern regarding safety of the recycling process. Climit was determined to be 0.46 mg/kg-pulp based on the human exposure threshold of 0.15 μg/person/day using the scenario in which a bedridden senior citizen uses four adult paper diapers manufactured with pulp containing 10% recycled pulp per day. Cres was derived from the initial concentration in used pulp (0.17 mg/kg-pulp), and decontamination rate was obtained from the surrogate contamination test. The Cres of the eight contaminants were between 0.0017 and 0.10 mg/kg-pulp, which were all below the Climit of 0.46 mg/kg-pulp. These results indicated there was no safety problem regarding this process for producing recycled pulp for adult paper diapers. |
| Databáze: | OpenAIRE |
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