An Investigation of Atmospheric Mercury from Power Sector in Thailand

Atmosphere

Thao Thi Bich Pham²  Agapol Junpen²  Savitri Garivait¹ 

[1] The Joint Graduate School of Energy and Environment, Centre of Excellence for Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand;

关键词: emissions inventory;    mercury;    Thailand;    power sector;   

DOI  :  10.3390/atmos6040490

来源: mdpi

【 摘 要 】

Mercury (Hg) is a highly toxic pollutant with a long range transport in the atmosphere resulting in both local and global concerns. Understanding of emissions is required to support an effective control strategy. In this study, atmospheric Hg emissions from power sector in Thailand in 2010 were investigated by using the bottom-up approach to improve the accuracy of the estimate by up to 50% in comparison to those provided in global inventories. The activity data of each individual source were collected and emissions factors were assessed based on local sources, well reflecting the emissions behavior of various emitters in Thailand. The atmospheric Hg emissions from power sector in 2010 amounted to 844.5 kg, in which emissions from coal and lignite power plants constituted up to 92.3% and biomass power plants constituted up to 7.4%. Spatial and temporal distribution analysis indicated high emissions in the Central and Northern regions, and from February to July. Annual trends in emissions from 2010 to 2030 were estimated and discussed.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.