National Stakeholder Awareness Workshop in China: Promoting Acid Deposition and Air Quality Management in East Asia

Bangkok, 18 January 2024

The EANET National Awareness Workshop in China: Promoting Acid Deposition and Air Quality Management in East Asia was held on 18 October 2023 at Fudan University in Shanghai, China, and online, as a side event of the First International Conference on Chemical Weather and Chemical Climate (CWCC2023). The Workshop was co-organized by EANET and Fudan University and was joined by 50 participants.

.

Opening Remarks

Mr. Zhou Jun, Director of the Asian, African, and Latin American Affairs Division of the Department of International Cooperation of the Ministry of Ecology and Environment, P.R. China, and EANET National Focal Point, delivered the opening remarks. He emphasized EANET’s two-decade journey in building a strong network and China’s commitment to its collaboration. China places high importance on EANET as a platform for expertise and knowledge-sharing and has actively supported its scope expansion. China has declared a “war” on air pollution and achieved a 57% reduction in average PM2.5 concentrations from 2013 to 2022 while doubling its GDP. Mr. Zhou Jun expressed China’s willingness to continue supporting EANET and collaborate for atmospheric environmental protection.

Prof. Xu Tang, from Fudan University, welcomed participants to the EANET side event at the First International Conference on Chemical Weather and Chemical Climate (CWCC2023). He explained the event’s focus on showcasing EANET and fostering collaboration, aligning with CWCC2023. Prof. Xu highlighted ongoing discussions about cooperation between EANET and Fudan University, particularly in capacity-building efforts.

Mr. Bert Fabian, Coordinator of the Secretariat for the EANET, outlined the workshop’s goals. He emphasized the connection between air pollution and climate change and the valuable opportunity for EANET to collaborate with Fudan University, which works closely with the World Meteorological Organization (WMO) and MAP-AQ. EANET has a strong history of monitoring acid deposition and air pollutants and providing high-quality data, and the Awareness Workshop aims to enhance interaction among researchers, scientists, and policymakers in China and beyond for the benefit of EANET Participating Countries and partners.

Some panelists and participants during the Workshop

.

More than two decades of EANET

Dr. Meihua Zhu of the Asia Center for Air Pollution Research (ACAP) discussed EANET’s evolution from the 1990s to its formal establishment in 2001, the adoption of the Instrument in 2012, and scope expansion in 2021. She highlighted EANET’s crucial role in policy development, data collection, annual Data Reports, and Periodic Reports on Acid Deposition in East Asia. Dr. Zhu also emphasized the availability of high-quality data on the EANET website. She introduced the Project Fund mechanism and its funded projects in 2023 and 2024. Dr. Zhu underscored EANET’s intergovernmental and cooperative approach in advancing shared knowledge and enhancing air quality in East and Southeast Asia.

 .

Acid Deposition and Air Pollution Management in China

Dr. Siyuan Liang of the China National Environmental Monitoring Centre (CNEMC), the National Center for EANET in China, presented China’s acid deposition and air quality management over recent years. In 2021, PM2.5 levels in cities at the prefecture level or above in China dropped from 46 μg/m³ in 2015 to 30 μg/m³, with significant reductions in PM2.5, SO2, NO2, and CO concentrations from 2013 to 2022. She highlighted 1,000 acid monitoring sites in 469 cities, including Chongqing, Lijiang, Wuzhishan, Xiamen, Xi’an, and Zhuhai sites, part of the EANET network, and highlighted the reduction in acid deposition pollution since 2005. Dr. Liang also presented the various advanced monitoring methods and big data platforms in use in China. She ended her presentation by mentioning the importance of further enhancing monitoring data for environmental management, covering various pollutants to aid decision-making.

Dr. Yangxi Chu from the Chinese Research Academy of Environmental Sciences (CRAES) presented China’s impressive air quality improvements over the last decade. Key achievements include stricter air pollution policies, enhanced vehicle emissions standards, clean residential heating, and joint air pollution prevention and control. Dr. Chu outlined China’s 2025 air quality goals and highlighted the role of science and technology in policymaking. He mentioned the National Joint Research Center for Air Pollution Control and its collaborative network, to recognize the main PM2.5 sources and to complete the “last mile” of scientific and technological applications to the ground. Dr. Chu showcased China’s substantial reduction in PM2.5 concentration nationwide and in Beijing, realizing air quality improvement as well as economic development.

 .

Discussion

Dr. Wei Wan from Clean Air Asia, China Office, discussed China’s journey toward cleaner air, emphasizing significant reductions in air pollutants from 2013 to 2021. She highlighted the successful balance between economic growth and air quality, attributed to revised air quality standards in 2012, among other policies. Dr. Syarif Romadhon from Indonesia’s National Research and Innovation Agency (BRIN) emphasized the importance of EANET’s collaboration and admired China’s example of economic development while reducing air pollution. Professor Gantuya Gambat from the German-Mongolian Institute for Resources and Technology expressed appreciation for EANET’s efforts for uniting scientists and policymakers in particular through the EANET Project Fund activities.

Professor Greg Carmichael, from the University of Iowa, USA, and Chair of the Scientific Steering Committee of WMO-GAW, highlighted the significance of EANET from the perspectives of the World Meteorological Organization (WMO) and the Global Atmosphere Watch (GAW). He emphasized the importance of monitoring acid deposition in East and Southeast Asia and the collaboration between GAW and EANET. Professor Carmichael expressed gratitude for EANET’s data access and emphasized the need for relevant intercomparison models and emission projections.

 .

Closing Session

Dr. Shiro Hatakeyama, DG at ACAP, delivered the Closing Remarks. He highlighted EANET’s two-decade experience in addressing acid deposition and improving air quality. Dr. Hatakeyama credited the collaborative efforts of the 13 Participating Countries for significant improvements in the atmospheric environment. He expressed admiration for the rapid enhancement of air quality in China and emphasized EANET’s contribution to bettering the atmospheric environment in East Asia. In 2021, EANET expanded its scope to include atmospheric environmental pollutants including ozone and PM2.5, recognizing that controlling these pollutants can yield co-benefits for human health, global warming, and climate change mitigation. Dr. Hatakeyama mentioned the Project Fund mechanism, fostering collaboration beyond the Participating Countries, and expressed hope for extended cooperation.

.

Useful Resources:

-Read the Panelists’ Presentations:

.

Photo credits: cover photo of Pudong Century Avenue, Shanghai, China (2021) by Iewek Gnos, all other photos: all rights reserved to EANET.

The EANET Emission Inventory Webinar Workshop on Open Biomass Burning

8 December 2022 – Niigata, Japan

The Network Center (NC) for the EANET organized the EANET Emission Inventory Webinar Workshop on Open Biomass Burning on 5 December 2022 gathering expert panelists from Japan, Thailand, the USA, and about 50 participants from the EANET countries. Starting with lecture presentations on methodologies to estimate emissions from open biomass burning sources, evaluate uncertainties in estimated emissions, and analyze influences of emissions using air quality models, the Workshop also included, in the second session, presentations from participants on open biomass burning emissions in their respective countries, concluded by discussions on the EANET’s potential role and activities related to open biomass burning.

.

Expert Lectures and Use Cases on Open Biomass-Burning Emission Inventories from Asia and Beyond
Screenshot from some panelists and participants during the virtual Workshop

Dr. Savitri Garivait from the Joint Graduate School of Energy and Environment, Centre of Excellence on Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, Thailand, presented a comprehensive lecture introducing basic knowledge and information related to open biomass burning emissions. First, Dr. Savitri introduced various types of open biomass burning, namely, forest fires, agricultural waste burning, and solid waste burning. Then, she presented methodologies to estimate emissions from open biomass burning such as basic equations, how to collect activity data as well as information necessary for spatial distribution and temporal variation, and selection of emission factors. To produce activity data, Dr. Savitri emphasized the importance of questionnaire surveys on local and specific data, in order to reduce uncertainties. She finally presented detailed case studies on the evaluation of the contribution of emissions from open biomass burning to the overall emissions and air pollution in Thailand and the Bangkok Metropolitan Region.

 

Dr. Kristofer Lasko, from the Geospatial Research Laboratory, at the Engineer Research and Development Center (ERDC), United States, provided a lecture focusing on uncertainties of open biomass burning emission inventories, especially on the amount of burned dry matter based on satellite observation data, emission factors for different biomass burning types, and land cover type maps to determine which emission factors to be applied. In his presentation, he explained the major causes of uncertainties based on satellite data including influences of cloud coverage at or near the time of burning, the insufficient spatial resolution to detect agricultural fires, and the limitation in determining actual burned amounts in the field via remote sensing data. For emission factors, Dr. Lasko emphasized the difficulty is not only the uncertainty of each factor but also the variations due to aspects such as variation in burning practices (e.g., piled residue burn vs. open field burn) and moisture. In his presentation, case studies for PM2.5 emission inventories of Viet Nam and the Southeast Asian region were also showcased.

Dr. Katsuhige Uranishi, Department of Life and Environment Engineering, Faculty of Environmental Engineering, the University of Kitakyushu, Japan, provided a lecture about how to evaluate the influences of emissions from open biomass burning on the air quality of neighboring areas using air quality models. First, Dr. Uranishi introduced the basic knowledge and settings of an air quality modeling system by using the Weather Research and Forecasting model and Community Multiscale Air Quality model (WRF/CMAQ) system as an example. He then also presented the Brute-force method, a typical methodology to estimate the contribution of PM2.5 sources using an air quality modeling system. Finally, Dr. Uranishi explained simulation examples for the evaluation of PM2.5 transboundary transport, through case studies in Japan. Because uncertainties are not only in open biomass burning emissions but also in the modeling systems, Dr. Uranishi emphasized that the model performance must be evaluated with observation data prior to estimating air pollution levels or impact. He also recommended reviewing past studies to find appropriate settings of air quality modeling systems to target specific problems.

.

Open Biomass-Burning Emissions Status and Control Measures in East Asia

Participants, in the second session, shared various information about open biomass burning emissions in their respective countries. The presentations covered major sources of open biomass burning emissions and how the emissions are estimated or evaluated in each participant’s country. They also considered how open burning influences air quality and what current control measures are in place in each represented country. These presentations and practical activities were followed by discussions on the EANET’s Project Activities related to open biomass burning emissions including national emission inventories to be organized in 2023.

Participants expressed interest to attend future capacity-building activities related to emission inventories not only from open biomass burning but also from other sources. The monitoring of emission sources to determine local emission factors was also suggested. The NC for the EANET, the organizer of the Workshop will consider the possible future activities to the EANET Project Fund.

.

Useful Resources

.

Photo credits: featured photo of Pom Coong Village, Viet Nam (2020) by Patrick McGregor on Unsplash ; other photos: all rights reserved to EANET.

EANET Seminar: Learnings on Reducing Emissions from Open Burning

7 September 2022 – Niigata, Japan

The Network Center for the EANET organized the Seminar « Learnings on Reducing Emissions from Open Burning » in a hybrid format, in Suwon, Republic of Korea, and online, on 6 September 2022, with the Asia Pacific Clean Air Partnership (APCAP) (UNEP) and the Institute for Global Environmental Strategy (IGES) as co-organizers. The Seminar focused on good practices to reduce emissions from open burning and presented sustainable alternatives to improve air quality in the region. 144 participants from 17 countries from the Asian region and beyond joined the Seminar.

.

Opening Session

Moderated by Ms. Maria Katherina Patdu, Associate Programme Officer – Asia Pacific Clean Air Partnership (APCAP) (UNEP), the Seminar started with the Opening and Welcome Remarks by Dr. Shiro Hatakeyama, Director General of the Asia Center for Air Pollution Research (ACAP) in charge of the NC for the EANET, and by Dr. Mushtaq Memon, Regional Coordinator for Chemicals and Pollution Action Subprogramme, UNEP Regional Office for Asia and the Pacific. Dr. Memon also co-moderated the second part of the Seminar.

.

Dr. Shiro Hatakeyama and Dr. Mushtaq Memon delivered the opening remarks.

.

Remarks emphasized the new role of the EANET with the expansion of its scope from acid deposition to air pollution (including PM2.5), and the technical and financial challenges leading to open burning practices in the region.

.

Open Biomass Burning and Regional Challenges

Dr. Supat Wangwongwatana, a Senior Instructor of the Faculty of Public Health, at Thammasat University, Thailand, presented the various causes of open burning in Thailand, with a particular focus on Northern Thailand’s situation and showed the direct impacts on air quality, the environment, and public health. In his presentation, he highlighted the challenges and needs for more government-driven incentives, policies, technical assistance, and education toward non-burning agricultural practices.

.

Panelists during the Seminar. From left to right: Ms. Maria Katherina Patdu, Dr. Supat Wangwongwatana, Ms. Etwin Sabarini, Dr. Eric Zusman, Dr. Alison Simcox, and Ms. Azka Ghaida.

.

Sharing Good Practices to Reduce Open Burning

Ms. Etwin Sabarini, Programme Coordinator, Measurable Action for Haze-Free Sustainable Land Management in Southeast Asia (MAHFSA), ASEAN Secretariat introduced the ASEAN Agreement on Transboundary Haze Pollution. She explained the history, objective, and framework of the ASEAN Agreement on Transboundary Haze Pollution and focused her talk on the ASEAN Peatland Management Strategy (APMS) initiative aiming at conserving peatlands, the largest carbon store in the ASEAN region.

Ms. Do Van Nguyet, Director at Live & Learn for Environment and Community, then shared examples of good practices from Viet Nam, including their collective action to control open burning in Hanoi. These included: policy development, monitoring, and technical assistance with a special focus on multi-stakeholder engagement.

Dr. Eric Zusman, a Senior Policy Researcher and Area Leader at the Institute for Global Environmental Strategy (IGES), presented priority actions in Southeast Asia to reduce open burning, and possible solutions, while analyzing barriers to their implementation based on the example of Thailand. To deal with these barriers, he explained the polycentric system approach, where different governing authorities may organize themselves in non-hierarchical relationships, and he emphasized the need to mix solutions of alternatives to open burning.

Dr. Alison Simcox, from the United States Environmental Protection Agency (US-EPA), shared an overview of agricultural burning and smoke management in the USA. After explaining the history of agricultural burning practices, she detailed the recent changes in practices and the role of the Environmental Protection Agency (US-EPA) focusing on the Smoke Management Program (SMP) and on alternatives to burning in the USA, such as no-till farming.

Dr. Ken Yamashita summarized the Seminar.

Ms. Azka Ghaida, an Air Quality and Climate Research Analyst at the World Resources Institute (WRI) in Indonesia, presented the use case of crop residue open burning in Indonesia by explaining the cause of the phenomenon, the government’s action, the barriers, and the solutions such as education and community involvement, sustainable farming and farm management practices.

Dr. Ken Yamashita who is Head of the Planning and Training Department at the Network Center for the EANET (ACAP) thanked all panelists and participants and summarized the Seminar by highlighting the key points of the challenges such as technical, financial limitations but also cultural barriers, and opportunities including mixed alternatives and operating in polycentric governance systems, to reduce open burning practices from ASEAN, Thailand, Indonesia, Viet Nam, and the USA.

.

Useful Resources

.

For further inquiries, contact the Network Center for the EANET.

.

Photo credits: featured photo of Mù Cang Chai, Mù Cang Chai District, Yên Bái, Viet Nam (2020) by Hoach Le Dinh on Unsplash, other photos: all rights reserved to the EANET.

EANET Research Fellowship Programme – The impacts of exposure to fine particulate matter on premature mortality in Bangkok, Thailand

EANET Fellowship 2018 featured image

1 December 2020 – Niigata, Japan

The Acid Deposition Monitoring Network in East Asia (EANET)’s fellowship program aims at funding researchers from the EANET’s participating countries to carry out research pertaining to acid deposition at the Network Center in Japan. Kessinee Unapumnuk, from Thailand, was awarded the EANET fellowship for 2018. She led her research on the impacts of exposure to fine particulate matter on premature mortality in Bangkok.

.

The impacts of fine particulate matters on human health

Fine particulate matters (PM2.5) affect human health and can lead to premature death if exposed for a long time. Chronic exposure to PM2.5 increases the risk of developing cardiovascular and respiratory diseases, as well as lung cancer. The World Health Organization (WHO) reported 4.2 million premature deaths due to cardiovascular and respiratory diseases and cancers worldwide in 2016 related to the exposure to ambient PM2.5 in both urban and rural areas.

Bangkok, Thailand’s capital, has been experiencing frequent episodes of air pollution characterized by a high concentration of PM2.5 due to combustion emissions from multiple sources and stagnant metrological conditions from January to April every year. Transportation-related sources are the major contributions to the PM2.5 levels and result in poor air quality in the city.

.

Understanding premature mortality attributable to PM2.5 in Bangkok’s districts

Unapumnuk has estimated premature mortalities caused by chronic obstructive pulmonary disease (COPD), lung cancer (LC), ischemic heart disease (IHD), and stroke attributed to long-term exposure to PM2.5 in several districts in Bangkok from 2010 to 2017.

In conclusion, the study suggests that a strict emission control of PM2.5 is needed in Bangkok to avoid significant mortality attributable to PM2.5.

.

Under the EANET Research Fellowship program 2018, this study was conducted at the Asia Center for Air Pollution (ACAP), Niigata Japan. The author acknowledged the help received from the Asia Centre for Air Pollution Research (ACAP) for performing the research as well from the Thai Pollution Control Department and the Ministry of Public Health.

.

Read the full article by Unapumnuk et al. in the EANET Science Bulletin Volume 5.

.

Photo credits: Bangkok by Nick van den Berg, free of the copyright license.