1. U.S. Energy Information Administration, Electric Power Annual 2016, Technical Report, U.S. Department of Energy, Washington, DC, 2018.
2. National Bureau of Statistics of China, Status of the coal combustion power industry in China 2018 (In Chinese), 2019. URL:https://www.huaon.com/story/407993, (Accessed on 22 October 2019).
3. U.S. EPA, Cross-state air pollution rule. united states environmental protection agency, 2017. URL:https://www.epa.gov/csapr, (Accessed on 22 October 2019).
4. GB 13223, Chinese National Standard: Emission standard of air pollutants for thermal power plants (2011).
5. Recent advances in flue gas desulfurization gypsum processes and applications–a review;Koralegedara;J. Environ. Manage.,2019