ទិន្នន័យគុណភាពខ្យល់ផ្តល់ដោយ៖ the Shanxi Province Environmental Monitoring Center (山西省环境监测中心站网站首页) (sthjt.shanxi.gov.cn) and the Shanxi Province Environmental Monitoring Center (山西省环境监测中心站网站首页) ( sxhjjcz.com.cn) and the Weather Underground (wunderground.com)