The Twenty-second Senior Technical Managers’ Meeting of the Acid Deposition Monitoring Network in East Asia

3 September 2021 – Niigata, Japan

The Twenty-second Senior Technical Managers’ Meeting (STM22) of the Acid Deposition Monitoring Network in East Asia (EANET) was held online on 1 and 2 September 2021, gathering over 40 senior technical officials from the 13 EANET Participating Countries to discuss the status of the EANET monitoring activities.


EANET Monitoring Activities in 2020

Dr. Shiro Hatakeyama, Director General, Asia Center for Air Pollution Research (ACAP), delivered the Opening Remarks, followed by Welcome Remarks by Mr. Tomi Haryadi, Coordinator, Secretariat for the EANET.

After presenting the progress of EANET activities in 2020 since STM21, the Network Center for the EANET (NC) shared the results of various important reports on acid deposition and related substances monitoring activities. STM22 participants were invited to discuss and share important knowledge and experience to collectively review these draft publications.


Figure 1: Discussions and presentations during the STM22



Overview of the Preliminary Draft Data Report 2020 and Evaluation for the Results of the Inter-laboratory Comparison (ILC) Projects 2020

The NC presented the Preliminary Draft Data Report 2020. This report focuses on wet deposition, dry deposition (air concentration), soil and vegetation, inland aquatic environment, and catchment-scale monitoring. It includes a summary of the monitoring data in 2020 and related information submitted by the Participating Countries.

The NC also introduced the preliminary draft Report on the Inter-laboratory Comparison Projects in 2020 for wet deposition, dry deposition (filter pack method), soil, and inland aquatic environment.


Consideration of the National Monitoring Plans (NMPs), Current Monitoring Activities for the EANET and Overall Air Concentration Monitoring Status of the Participating Countries

In line with previous STM meetings’ process, representatives of the Participating Countries presented their National Monitoring Plans (NMPs) and current EANET activities, including monitoring capacities, technical challenges, and future plans, while focusing on the general improvement of the activities of the EANET.

Other important matters were also discussed, including the progress on the Revision of the Technical Manuals for Dry Deposition Flux Estimation and Air Concentration Monitoring.

Dr. Erdenebat Eldev-Ochir, Deputy Director General, ACAP, delivered the Closing Remarks. He expressed his great appreciation for the improvement of the data quality due to the efforts of the Participating Countries. He highlighted that, despite the COVID-19 pandemic, the EANET has been continuously strengthening the capacity of the Participating Countries through online training, research fellowship, public awareness workshops, and joint research.


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Photo credits: All rights reserved to EANET.