AIR QUALITY MONITORING

Laboratory officers take a sample pm10 (small air particles) in the Tiban Centre area, Batam, Tuesday (21/5). The Department of Environment (DLH) Riau Islands Province conducts temperature measurement, solar light intensity, wind speed, humidity and environmental noise level at the city point mainly in the path that connects the industrial area. ANTARA PHOTO/Joko Sulistyo/Koz/ama/13.