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Monitoring Air Quality in the Pearl River Delta with MARGA system from Metrohm Applikon

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This increased capability allows the institute to study their influence on the climate and air quality in the Pearl River Delta.

MARGA stands for Monitoring of Aerosols and Gases in ambient Air. Basically, it combines a sophisticated sampling system bringing the gas and aerosol fraction of the sample into solution for subsequent analysis by dual-channel ion chromatography. The key-benefit of the MARGA system is that it provides automated, semi-continuous sampling enabling researchers to study meteorological phenomena as they happen.

The MARGA system operated at the Institute of Tropical and Marine Meteorology in Guangzhou has been running for two years. MARGA provides quasi-realtime results for the following parameters: NH4+, Na+, K+, Ca2+, Mg2+, Cl-, NO3-, and SO42- in aerosols and NH3,HNO2, HNO3, HCl,  SO2 in gases. The institute’s MARGA system is maintained by Metrohm China, who also provides all service work when needed.