Interactions between ambient air pollutants and temperature on emergency department visits: Analysis of varying-coefficient model in Guangzhou, China

Highlights: • Interactions between air pollutants and daily temperature levels (DTLs) on cause-specific emergency department visits (EDVs) were assessed. • Interactions between NO2 and DTLs, and SO2 and DLTs had adverse effects on the EDVs of neurologic and respiratory diseases, respectively. • People aged ≤ 75 years were susceptible to neurological EDVs due to the interactions between air pollutants and DTLs. -- Abstract: At present, there are few studies on the effect of short-term interactions between ambient air pollutants and temperature on cause-specific emergency department visits in China. This study aimed to explore their short-term interactions on cause-specific emergency department visits using data collected from a total of 65 public hospitals in Guangzhou city, south China.