Figure 1

Concentrations of NO2 and PM10, and age-adjusted breast cancer incidence and mortality rates portrayed on the South Korean map. (A) NO2 concentration in average of the study period (2004–2016), (B) PM10 concentration in average of 2004–2016, (C) age-adjusted breast cancer incidence rate in average of 2004–2013, and (D) age-adjusted breast cancer mortality rate in average of 2005–2016, in South Korea.