This supplementary appendix, part of the original submission and peer-reviewed, provides additional data and references to support the findings of the main article by Rajagopalan S, Brook RD, and Salerno PRVO, titled "Air pollution exposure and cardiometabolic risk." The appendix includes two tables and a list of references: 1. **Appendix Table 1: Air Pollution and Insulin Resistance** - This table details the relationship between air pollution and insulin resistance, including various metrics such as confidence intervals (CI), black carbon (BC), Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), heart rate variability (HRV), and blood pressure (BP). 2. **Appendix Table 2: Air Pollution and Diabetes Incidence, Mortality, and Obesity** - This table explores the impact of air pollution on diabetes incidence, mortality, and obesity, providing data on risk ratios (RR), hazard ratios (HR), and other relevant statistics. 3. **References** - The references section lists 25 studies that support the findings in the main article, covering topics such as the association between ambient air pollution and diabetes, the effects of traffic-related air pollution, the influence of sociodemographic characteristics, and the long-term health impacts of air pollution on metabolic syndrome and obesity.This supplementary appendix, part of the original submission and peer-reviewed, provides additional data and references to support the findings of the main article by Rajagopalan S, Brook RD, and Salerno PRVO, titled "Air pollution exposure and cardiometabolic risk." The appendix includes two tables and a list of references: 1. **Appendix Table 1: Air Pollution and Insulin Resistance** - This table details the relationship between air pollution and insulin resistance, including various metrics such as confidence intervals (CI), black carbon (BC), Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), heart rate variability (HRV), and blood pressure (BP). 2. **Appendix Table 2: Air Pollution and Diabetes Incidence, Mortality, and Obesity** - This table explores the impact of air pollution on diabetes incidence, mortality, and obesity, providing data on risk ratios (RR), hazard ratios (HR), and other relevant statistics. 3. **References** - The references section lists 25 studies that support the findings in the main article, covering topics such as the association between ambient air pollution and diabetes, the effects of traffic-related air pollution, the influence of sociodemographic characteristics, and the long-term health impacts of air pollution on metabolic syndrome and obesity.