Particulate pollution in Ulaanbaatar, Mongolia

The World Health Organization (WHO) listed the air pollution in Ulaanbaatar (Mongolia) among the top 5 cities with the worst air quality in the world. Air quality in the winter season reaches highs of 750 μg/m3 for daily average fine particulates (PM) due to increased coal combustion and lower mixing heights (<200 m), coupled with the city’s geography surrounded by mountains, which further restricts the vertical and horizontal dispersion of the pollutants. The annual average concentrations in 2010–2011 ranged 136 ± 114 μg/m3 (the WHO guideline for fine PM is 10 μg/m3). The single largest source of particulate pollution in Ulaanbaatar is coal and biomass combustion in households and heat-only boilers, followed by power plants. In this paper, we present sector-specific emissions for 2010 accounting for 62,000 tons of fine PM, 55,000 tons of sulfur dioxide, and 89,000 tons of nitrogen oxide emissions. The inventory is spatially disaggregated at 0.01° resolution on a GIS platform for use in a chemical transport model (ATMoS). The modeled concentrations for the urban area ranged 153 ± 70 μg/m3, when overlaid on gridded population, resulted in estimated 1,000–1,500 premature deaths per year due to outdoor air pollution. This study also highlights the linkages between indoor and outdoor air pollution. In these harsh temperate conditions, with 50 % of the emissions originating from Ger households, they are as big a health risk for indoor air quality as they are for outdoor air quality. Any intervention improving combustion efficiency or providing clean fuel for these stoves will have a combined benefit for indoor air quality, outdoor air quality, and climate policy. The analysis shows that aggressive pollution control measures are imperative to protect the population in Ulaanbaatar from excess exposure levels, and implementation of control measures like the introduction of heat efficient stoves, clean coal for heating boilers, and urban transport planning will result in significant health benefits, which surpass any costs of institutional, technical, and economic interventions.

[1]  Tim K. Takaro,et al.  An assessment of air pollution and its attributable mortality in Ulaanbaatar, Mongolia , 2011, Air Quality, Atmosphere & Health.

[2]  Alan D. Lopez,et al.  Age-specific and sex-specific mortality in 187 countries, 1970–2010: a systematic analysis for the Global Burden of Disease Study 2010 , 2012, The Lancet.

[3]  Haidong Kan,et al.  Public Health and Air Pollution in Asia (PAPA): A Multicity Study of Short-Term Effects of Air Pollution on Mortality , 2008, Environmental health perspectives.

[4]  Tami C. Bond,et al.  Global emission projections of particulate matter (PM): I. Exhaust emissions from on-road vehicles , 2011 .

[5]  G. J. Wells,et al.  Tools for improving air quality management : a review of top-down source apportionment techniques and their application in developing countries , 2011 .

[6]  Z. Nasir,et al.  The state of ambient air quality in Pakistan—a review , 2010, Environmental science and pollution research international.

[7]  D. Fabian,et al.  The global burden of asthma: executive summary of the GINA Dissemination Committee Report , 2004, Allergy.

[8]  Haidong Kan,et al.  An evaluation of public health impact of ambient air pollution under various energy scenarios in Shanghai, China , 2004 .

[9]  F. Meixner,et al.  Air pollution and meteorological processes in the growing dryland city of Urumqi (Xinjiang, China). , 2011, The Science of the total environment.

[10]  Sarath K. Guttikunda,et al.  Application of SIM-air modeling tools to assess air quality in Indian cities , 2012 .

[11]  P. Davy,et al.  AIR PARTICULATE MATTER POLLUTION IN ULAANBAATAR CITY, MONGOLIA , 2012 .

[12]  G. Timilsina,et al.  Transport sector CO2 emissions growth in Asia: Underlying factors and policy options , 2009 .

[13]  S. Guttikunda.  Urban Air Pollution Analysis for Ulaanbaatar, Mongolia , 2008 .

[14]  Steven R H Barrett,et al.  Public health impacts of combustion emissions in the United Kingdom. , 2012, Environmental science & technology.

[15]  Rufus Edwards,et al.  Impact of Improved Stoves on Indoor Air Quality in Ulaanbaatar, Mongolia , 2005 .

[16]  D. Shagjjamba,et al.  Air particulate matter pollution in Ulaanbaatar, Mongolia: determination of composition, source contributions and source locations , 2011 .

[17]  Nobuyuki Hamajima,et al.  Healthcare waste management in the capital city of Mongolia. , 2008, Waste management.

[18]  Zia Wadud,et al.  Particulate pollution from brick kiln clusters in the Greater Dhaka region, Bangladesh , 2013, Air Quality, Atmosphere & Health.

[19]  G. Carmichael,et al.  An urban trajectory model for sulfur in Asian megacities: model concepts and preliminary application , 1999 .

[20]  Mitigation of Ulaanbaatar city's air pollution - from source aportionment to ultra-low emission lignite burning stoves , 2011 .

[21]  Lee Schipper,et al.  Flexing the link between transport and greenhouse gas emissions : a path for the World Bank , 2000 .

[22]  Ruei-Hao Shie,et al.  The influence of emission sources and meteorological conditions on SO2 pollution in Mongolia , 2012 .

[23]  H. D. Tung,et al.  Development of emission factors and emission inventories for motorcycles and light duty vehicles in the urban region in Vietnam. , 2011, The Science of the total environment.

[24]  B. R. Gurjar,et al.  Role of meteorology in seasonality of air pollution in megacity Delhi, India , 2012, Environmental Monitoring and Assessment.

[25]  Alexander Limonov,et al.  Estimating the Impact of Restructuring on Electricity Generation Efficiency: The Case of the Indian Thermal Power Sector , 2011 .

[26]  H. R. Anderson,et al.  Systematic review and meta-analysis of epidemiological time-series studies on outdoor air pollution and health in Asia , 2012, Air Quality, Atmosphere & Health.

[27]  Nelson Gouveia,et al.  The avoidable health effects of air pollution in three Latin American cities: Santiago, São Paulo, and Mexico City. , 2006, Environmental research.

[28]  C. Nielsen,et al.  Establishment of a database of emission factors for atmospheric pollutants from Chinese coal-fired power plants , 2010 .

[29]  Sarath K. Guttikunda,et al.  A GIS based emissions inventory at 1 km × 1 km spatial resolution for air pollution analysis in Delhi, India , 2013 .