Podatke o kvaliteti zraka obezbjeđuje: the Weather Underground (wunderground.com) and the Gangsu Environmental Protection Agency (甘肃省生态环境厅) (sthj.gansu.gov.cn) and the China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台) (113.108.142.147:20035)