The average [ standard deviation SD] annual estimated concentration of NH3 and H2S in the Duplin County Region is 1:75 2:81 lg=m3 and 0:0087 0:014 lg=m3, respectively. The maximum average annual ambient concentrations are estimated at 54:27 4:12 lg=m3 and 0:54 0:041 lg=m3 for NH3 and H2S, respectively. Our descriptive analysis reveals that people of low income, people of color, people with low educational attainment, and the linguistically isolated in the Duplin Region are disproportionately exposed to higher levels of pollutants than the average exposure for residents. Alternatively, our statistical results suggests that after adjusting for covariates, communities of color are associated with 1.70% (95% CI: 3:79, 0.44) lower NH3 concentrations per 1-SD increase. One-standard deviation increases in the adults with low educational attainment and children <19 respectively