In recent years the inputs of Asian atmospheric pollutants (for instance, acid pollutants, Asian dust, biomass burning and mercury) to Taiwan via long-range transport have been widely paid attention. In order to clarify the intercontinental and regional transport and collect the atmospheric baseline data, the Lulin atmospheric background station (LABS, 2862 m) at Mt. Lulin in central Taiwan has been operated on 13 April 2006. This project integrates those researchers in the fields of precipitation chemistry, gas chemistry, aerosol chemistry, atmospheric mercury and radiation to test the instruments, conduct data analysis and construct long-term database. Till present time, we have found that the average concentrations of CO, O3 and PM10 are about 102.8 ppb, 31.9 ppb and 10.0 g m-3, respectively. The average pH value of precipitation is 5.33. The average concentrations of mecury such as GEM, RGM and PHg are about 1.66 ng m-3, 14.23 pg m-3 and 2.12 pg m-3, respectively. The average aerosol optical depth is 0.114. To summarize the data results, the maximum concentration of pollutants generally occured during spring time, espically in March, corresponding the biomass burning from SE Asia. We have successfully extended the collaborations with USEPA, NASA, NOAA. We also have participated international experiments such as ABC and BASE-Asia. Most of information can be found at the web site of LABS (http://labs.org.tw).

Precipertation,chemistry,,trace,gas,,aerosol,,mecury,,radiation