Tag: nitrogen dioxide

Joint Projects of the EANET with Participating Countries – Development of an Emission Inventory Manual for Mongolia

Posted on by Aurélia Lemoine

31 May 2021 – Niigata, Japan

Scientists from the EANET Participating Countries and the Network Center (located in Niigata, Japan) have been promoting joint research projects related to the EANET. In response to Mongolia’s request, an Emission Inventory Manual for Mongolia was developed and published in 2018 to provide key scientific data, including estimates of emissions of air pollutants, for policymakers to develop air pollution control measures.

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Assessing Air Pollution in Mongolia

Mongolia is facing serious air pollution problems, especially in the capital, Ulaanbaatar city, where the population density is high. Most emissions of air pollutants result from the use of coal in power plants and domestic cooking. The level of air pollutants is normally high during the winter season when coal is also used for domestic heating. Emissions of air pollutants from road traffic are also quite significant. The major air pollutants detected in Ulaanbaatar city are sulfur dioxides (SO2), particle matters (TSP, PM10, PM2.5), and nitrogen dioxide (NO2).

To assist Mongolia in tackling air pollution issues, several international donors and agencies (World Bank, Asian Development Bank, Japan International Cooperation Agency) are developing and implementing projects for air pollution mitigation in Ulaanbaatar city. Since 2016, Clean Air Asia has been working closely with the Ministry of Environment and Tourism of Mongolia (MET) and the National Agency for Meteorology and Environmental Monitoring (NAMEM) on addressing air pollution at a national level.

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Developing Mongolia’s National Emission Inventory

In response to Mongolia’s request, the Asia Center for Air Pollution Research (ACAP), in collaboration with SUURI-KEIKAKU Co., Ltd, has developed an Emission Inventory Manual for Mongolia, as a part of the Integrated Programme for Better Air Quality in Asia (IBAQ Programme) of Clean Air Asia (CAA).

Available in Mongolian, English, and Japanese, the Emission Inventory Manual will be used for developing Mongolia’s national emission inventory of air pollutants and further support the formulation of effective air pollution control measures.

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Read the summary of the Emission Inventory Manual in the EANET Science Bulletin, Vol 5.

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The authors appreciated the cooperation and assistance received from the Ministry of Environment and Tourism of Mongolia (MET), the National Agency for Meteorology and Environmental Monitoring (NAMEM), Clean Air Asia (CAA), and the Japan International Cooperation Agency (JICA).

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Photo credits: Nogoonnuur, Mongolia, by Lightscape, free of the copyright license.

EANET Research Fellowship Programme – Study on the impacts of air pollution transport and its effects to human health in Cambodia

Posted on by Aurélia Lemoine

17 February 2021 – Niigata, Japan

The Acid Deposition Monitoring Network in East Asia (EANET)’s fellowship programme aims at funding researchers from the EANET’s Participating Countries to carry out research pertaining to acid deposition at the Network Center in Japan. Kong Savuth, from Cambodia, was awarded the EANET fellowship in 2018. Mr. Savuth’s research described human health effects of exposure to air pollutants, namely, ozone (O3) and particulate matter (PM2.5) in reference to the WHO Air quality guidelines (2005).

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Impacts of air pollutants on human health

PM2.5 can penetrate deep inside the lungs and contribute to increasing the risk of cardiovascular and respiratory diseases including lung cancer. According to recent epidemiological studies, reducing the annual average PM2.5 concentrations of 10 μg m-3 could result in a significant reduction of premature mortality.

Ground-level O3 can cause respiratory problems leading to asthma, cough, inflammation of the respiratory tract, chronic bronchitis, and lung damage. A high-level concentration of O3 also causes premature mortality.

WHO estimates that in 2016, some 58% of outdoor air pollution-related premature deaths were due to ischaemic heart disease and strokes, while 18% of deaths were due to chronic obstructive pulmonary disease and acute lower respiratory infections respectively, and 6% of deaths were due to lung cancer.

 

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Estimating premature mortality caused by PM2.5 and O3 in Cambodia

The researchers (Savuth and Yamashita) estimated premature mortality caused by the exposure to PM2.5 and O3 in Cambodia by using PM2.5 and O3 data simulated by CMAQ (Community Multiscale Air Quality – a chemical transport model) and Concentration-Response (C-R) functions.

 

Read the full study and its results, published in the EANET Science Bulletin, Vol 5.

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Under the EANET Research Fellowship programme 2018, this study was conducted at the Asia Center for Air Pollution (ACAP), Niigata, Japan. The researcher, Kong Savuth, acknowledged the support and facilities provide by ACAP and by the National Institute for Environmental Studies (NIES), Japan, for performing the research.

Photo credits: Cambodia by Daniel Kirsch, free of the copyright license.