[
   {
      "aqi":47,
      "area":"北京",
      "pm2_5":32,
      "pm2_5_24h":33,
      "position_name":"万寿西宫",
      "primary_pollutant":null,
      "quality":"优",
      "station_code":"1001A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":63,
      "area":"北京",
      "pm2_5":37,
      "pm2_5_24h":20,
      "position_name":"定陵",
      "primary_pollutant":"颗粒物(PM10)",
      "quality":"良",
      "station_code":"1002A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":57,
      "area":"北京",
      "pm2_5":40,
      "pm2_5_24h":36,
      "position_name":"东四",
      "primary_pollutant":"细颗粒物(PM2.5)",
      "quality":"良",
      "station_code":"1003A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":44,
      "area":"北京",
      "pm2_5":24,
      "pm2_5_24h":30,
      "position_name":"天坛",
      "primary_pollutant":null,
      "quality":"优",
      "station_code":"1004A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":46,
      "area":"北京",
      "pm2_5":28,
      "pm2_5_24h":38,
      "position_name":"农展馆",
      "primary_pollutant":null,
      "quality":"优",
      "station_code":"1005A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":58,
      "area":"北京",
      "pm2_5":41,
      "pm2_5_24h":32,
      "position_name":"官园",
      "primary_pollutant":"细颗粒物(PM2.5)",
      "quality":"良",
      "station_code":"1006A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":54,
      "area":"北京",
      "pm2_5":38,
      "pm2_5_24h":28,
      "position_name":"海淀区万柳",
      "primary_pollutant":"细颗粒物(PM2.5)",
      "quality":"良",
      "station_code":"1007A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":102,
      "area":"北京",
      "pm2_5":76,
      "pm2_5_24h":38,
      "position_name":"顺义新城",
      "primary_pollutant":"细颗粒物(PM2.5)",
      "quality":"轻度污染",
      "station_code":"1008A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":80,
      "area":"北京",
      "pm2_5":48,
      "pm2_5_24h":21,
      "position_name":"怀柔镇",
      "primary_pollutant":"臭氧1小时",
      "quality":"良",
      "station_code":"1009A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":77,
      "area":"北京",
      "pm2_5":46,
      "pm2_5_24h":20,
      "position_name":"昌平镇",
      "primary_pollutant":"颗粒物(PM10)",
      "quality":"良",
      "station_code":"1010A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":60,
      "area":"北京",
      "pm2_5":43,
      "pm2_5_24h":32,
      "position_name":"奥体中心",
      "primary_pollutant":"细颗粒物(PM2.5)",
      "quality":"良",
      "station_code":"1011A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":50,
      "area":"北京",
      "pm2_5":35,
      "pm2_5_24h":27,
      "position_name":"古城",
      "primary_pollutant":null,
      "quality":"优",
      "station_code":"1012A",
      "time_point":"2017-07-29T14:00:00Z"
   },
   {
      "aqi":58,
      "area":"北京",
      "pm2_5":40,
      "pm2_5_24h":29,
      "position_name":null,
      "primary_pollutant":"颗粒物(PM2.5),颗粒物(PM10)",
      "quality":"良",
      "station_code":null,
      "time_point":"2017-07-29T14:00:00Z"
   }
]