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. Author manuscript; available in PMC: 2022 Aug 17.
Published in final edited form as: Environ Sci Technol. 2021 Aug 4;55(16):11375–11387. doi: 10.1021/acs.est.1c01907

Figure 2.

Figure 2.

Occurrence ratios (OR) for 1121 chemicals measured in virgin and recycled products. OR is defined as the fraction of recycled products with occurrence divided by the fraction of virgin products with occurrence. Size of the points indicates the number of individual products with occurrence; the color indicates the number of product categories overall with at least one occurrence. Chemicals with a discrete occurrence ratio > 4 are labeled. Points at the very top and bottom of the graph are chemicals with an OR of infinity (no occurrence in virgin products) and 0 (no occurrence in recycled materials) respectively; these chemicals occurred in relatively few products and categories. Chemicals are categorized by chemical structural superclass as provided the ClassyFire taxonomy.