专题指标Mortality caused by road traffic injury (per 100,000 people)PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)PM2.5 air pollution, population exposed to levels exceeding WHO guideline value (% of total)Population living in slums (% of urban population)人口密度（每公里土地面积人数）人口超过100万的城市群中的人口（占总人口的百分比）城镇人口城镇人口（占总人口比例）最大城市中的人口（占城市人口的百分比）
