Ground based in situ observations of impactor at Gual Pahari (IN1016R). These measurements are gathered as a part of the following projects GAW-WDCA, EUCAARI and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in pm10_pm25 (mass_concentration_of_ammonium_in_pm10_minus_pm2p5_in_air), calcium in pm10_pm25 (mass_concentration_of_calcium_in_pm10_minus_pm2p5_in_air), chloride in pm10_pm25 (mass_concentration_of_chloride_in_pm10_minus_pm2p5_in_air), magnesium in pm10_pm25 (mass_concentration_of_magnesium_in_pm10_minus_pm2p5_in_air), nitrate in pm10_pm25 (mass_concentration_of_nitrate_in_pm10_minus_pm2p5_in_air), potassium in pm10_pm25 (mass_concentration_of_potassium_in_pm10_minus_pm2p5_in_air), sodium in pm10_pm25 (mass_concentration_of_sodium_in_pm10_minus_pm2p5_in_air), sulphate_total in pm10_pm25 (mass_concentration_of_sulphate_total_in_pm10_minus_pm2p5_in_air)