Abstract
Abstract. A new inventory of air pollutant emissions in Asia in the year 2006 is developed to support the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B) funded by the National Aeronautics and Space Administration (NASA). Emissions are estimated for all major anthropogenic sources, excluding biomass burning. We estimate total Asian anthropogenic emissions in the year 2006 as follows: 47.1 Tg SO2, 36.7 Tg NOx, 298.2 Tg CO, 54.6 Tg NMVOC, 29.2 Tg PM10, 22.2 Tg PM2.5, 2.97 Tg BC, and 6.57 Tg OC. We emphasize emissions from China because they dominate the Asia pollutant outflow to the Pacific and the increase of emissions from China since 2000 is of great concern. We have implemented a series of improved methodologies to gain a better understanding of emissions from China, including a detailed technology-based approach, a dynamic methodology representing rapid technology renewal, critical examination of energy statistics, and a new scheme of NMVOC speciation for model-ready emissions. We estimate China's anthropogenic emissions in the year 2006 to be as follows: 31.0 Tg SO2, 20.8 Tg NOx, 166.9 Tg CO, 23.2 Tg NMVOC, 18.2 Tg PM10, 13.3 Tg PM2.5, 1.8 Tg BC, and 3.2 Tg OC. We have also estimated 2001 emissions for China using the same methodology and found that all species show an increasing trend during 2001–2006: 36% increase for SO2, 55% for NOx, 18% for CO, 29% for VOC, 13% for PM10, and 14% for PM2.5, BC, and OC. Emissions are gridded at a resolution of 30 min×30 min and can be accessed at our web site (http://mic.greenresource.cn/intex-b2006).
Highlights
In 2006 the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B) was conducted by the National Aeronautics and Space Administration (NASA)
We follow the approach of the TRACE-P inventory for activity rates for other Asian countries but use International Energy Agency (IEA) energy statistics (IEA, 2006) for energy www.atmos-chem-phys.net/9/5131/2009/
We will not repeat that comparison, but focus instead on a comparison of the magnitude of China’s emissions in inventories and from top-down constraints for years after 2000 (Table 10), in order to highlight the implications for emission inventory development
Summary
In 2006 the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B) was conducted by the National Aeronautics and Space Administration (NASA). New work was necessary to refine the temporal and spatial resolution of the emission data and to add important new species, source types, and geographical regions This new inventory for 2006 enables a more accurate representation of Asian outflow, cross-Pacific transport, and North American inflow to be provided for INTEX-B studies. Emission estimates in this work are for the year 2006, because this inventory was prepared for the INTEX-B field campaign undertaken in spring 2006, and it 57 was intended to reflect the actual magnitude of emissions during that period as closely as possible. 22 countries and regions in Asia, see Fig. 1 SO2, NOx, CO, NMVOC, PM10, PM2.5, BC, OC by mechanism: CB04, CB05, RADM2, SAPRC99, SAPRC07 power plants, industry, residential, transportation 2006 30 min×30 min monthly available online at http://mic.greenresource.cn/intex-b2006 http://www.cgrer.uiowa.edu/EMISSION DATA new/index 16.html representation of actual emissions.
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