| 英文摘要 |
Mercury (Hg) is a global pollutant, which is distributed worldwide primarily via atmospheric long-range transport. Via dry and wet atmospheric deposition, Hg enters aquatic ecosystems, where it could be transformed to highly toxic methylmercury (MeHg) by microorganisms. MeHg can be bioaccumulated and biomagnified through food chain to higher concentrations in some fish that could be hazardous to human health through consumption. Although East, Southeast and South Asia are major emission source regions of Hg to the atmosphere, the ultra-trace level sampling and analytical techniques required for quantifying atmospheric Hg concentrations and fluxes are lacking in many countries, making Southeast and South Asia a blank area of atmospheric Hg monitoring. Therefore, this project is aimed to ameliorate this situation with following objectives: (1) organization of activities of the Asia-Pacific Mercury Monitoring Network (APMMN); (2) continue operation of the Center for Environmental Monitoring and Technology; (3) continue operation of the platform of atmospheric Hg monitoring education and training for the Asia-Pacific region; providing consultation in environmental monitoring techniques and related training; assisting APMMN partner countries for capacity building in environmental monitoring.
Based on the existing foundation in bilateral environmental protection collaboration, we assisted the Environmental Protection Administration of Taiwan to work with US Environmental Protection Agency (USEPA) and National Atmospheric Deposition Program (NADP) on the following tasks: making Center for Environmental Monitoring and Technology the regional technical center; continue operation of the APMMN and expansion of regional atmospheric Hg monitoring; assisting regional countries in Hg analysis of atmospheric samples and strengthening the QA/QC procedures; providing personnel training and assisting regional countries in capacity building in ultra-trace level Hg sampling and analysis to enhance monitoring capacity; promoting multilateral cooperation in atmospheric Hg monitoring, and information exchange and data sharing; studying the distribution characteristics, variation, and influence of regional atmospheric Hg.
Major results of this research include: (1) submit “the planning report of the 2020 Asia-Pacific Mercury Monitoring Network and the regional atmospheric Hg monitoring education and training platform activities”; (2) submit “the plan report of application strategy of the mercury passive air sampler”; (3) quality assurance and quality control data for mercury wet deposition monitoring; (4) maintenance and update of the APMMN website; (5) collection of atmospheric Hg monitoring information in Asia-Pacific region; (6) impact assessment of the Asia-Pacific atmospheric Hg outflow on Taiwan; (7) organize and host the 9th Annual Asia-Pacific Mercury Monitoring Network Partners Meeting Virtual Workshop; (8) side-by-side comparison of various wet deposition samplers; (9) make plans for the application strategy of passive air samplers for Hg and execute the plan; (10) Sampling of wet deposition at Lulin Atmospheric Background Station for Hg analysis; (11) Hg analyses of 210 APMMN wet deposition samples and 151 wet deposition sampler comparison samples; (12) provide consultation in environmental monitoring techniques and related training, and help solve operation and maintenance issues; (13) Collect information about new mercury monitoring techniques; (14) Edit the APMMN summary 2020 edition.
|