**3. Results**

*3.1. Example Results*

To demonstrate the results that an individual user receives by using the EDC footprint tool, example product inputs are provided in Figure 2, and the output is shown in Figures 3 and 4. Based on the user's input (Figure 2), the first pie chart shows that EDCs in the household cleaners category contributed to nearly half (48%) of the total EDC footprint, while products in the laundry and health and beauty categories each contributed to 26% of the total EDC footprint (Figure 3a). Glycol ethers, fragrances, and ethanolamines together contributed to more than 85% of the total EDC footprint (Figure 3b). The top individual product that contributed the most to the user's EDC footprint was glass cleaner (Figure 4). The other products contributing the most to the example user's footprint were three household cleaners (floor cleaner, surface cleaner, and dish liquid); five health and beauty products (hand soap, bar soap, perfume/fragrance, body wash, and body lotion); and one laundry product (laundry detergent) (Figure 4).

To facilitate decision making regarding the potential for the example user's EDC footprint to be lowered if individual products were switched to "greener" alternative products (i.e., plant-based laundry detergent, natural air fresheners, etc.), product inputs were recalculated using the "green" version of the calculator. Results show that, by switching to an alternative version of the top five products alone, this example user could reduce the household EDC footprint by more than 75% (Table 3).

**Table 3.** Potential endocrine-disrupting compound (EDC) footprint reduction that could be achieved by replacing the top five contributing products with a greener alternative for one example user.


NA = not applicable, as only the top five products were switched in this example to alternative products. All other products in this example input (Figure 2) remained the same.


**Figure 2.** Example of one user's input to the endocrine-disrupting compound (EDC) footprint calculator and corresponding footprint calculation results, where the amount of each product input in either volume (mL) or mass (g), depending on whether the product is a solid (green box with red text) or a liquid (white box with black text).

**Figure 3.** Example of endocrine-disrupting compound (EDC) footprint calculator results for one user with (**a**) the mass and percent contributions of each product category to the total estimated EDC footprint; (**b**) the percent contribution of each EDC to the total estimated EDC footprint.

**Figure 4.** Example of endocrine-disrupting compound (EDC) footprint calculator results for the top 10 products and their contribution to the overall EDC footprint for one example user.
