19-04-2012 14:10

Elegantia College 風采中學

中午時，雨勢頗大，天文台發出雷暴警告，能見度差。但下雨後空氣中的可吸入懸浮粒子由每立方米66.2微米下降至每立方米20.1微克。

Visibility: Fair

Estimated Visibility: 6 km

Hourly mean UV Index: 0

PM₁₀/RSP at nearby EPD station: 20.1 ug/m³