Layer Estimates:

Layer: AirQualityMonitorStation (ID:0)
Count: 16
Extent:

XMin: 113.943659021538
YMin: 22.2801329609827
XMax: 114.360718500243
YMax: 22.4713166874375
Spatial Reference: 4326 (4326)

Layer: PollutantConcentration (ID:1)
Count: 384