Atmospheric emissions and pollution from the coal-fired thermal power plants in India

• Published in: Atmospheric environment (1994) Vol. 92; pp. 449 - 460
• Main Authors: Guttikunda, Sarath K., Jawahar, Puja
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2014; Elsevier
• Subjects: Air pollution; Air. Soil. Water. Waste. Feeding; Applied sciences; Atmospheric pollution; Atmospherics; Biological and medical sciences; CAMx; Combustion and energy production; Environment. Living conditions; Environmental regulations; Exact sciences and technology; Flue gas desulfurization; Flue gases; Health impacts; Impact analysis; India; Medical sciences; Particulates; Pollution; Pollution abatement; Pollution sources. Measurement results; Power plants; Public health. Hygiene; Public health. Hygiene-occupational medicine; Sulfates; Asia; India; Particulates; Environmental regulations; Flue gas desulfurization; Health impacts; Sulfates; CAMx; Combustion gas desulfurization; Sulfur compounds; Environmental policy; Pollution control; Pollutant emission; Health and environment; Coal power plant; Air pollution; Pollution abatement; Regulation; Flue gas purification; Public health
• ISSN: 1352-2310; 1873-2844
• DOI: 10.1016/j.atmosenv.2014.04.057

In India, of the 210 GW electricity generation capacity, 66% is derived from coal, with planned additions of 76 GW and 93 GW during the 12th and the 13th five year plans, respectively. Atmospheric emissions from the coal-fired power plants are responsible for a large burden on human health. In 2010–11, 111 plants with an installed capacity of 121 GW, consumed 503 million tons of coal, and generated an estimated 580 ktons of particulates with diameter less than 2.5 μm (PM2.5), 2100 ktons of sulfur dioxides, 2000 ktons of nitrogen oxides, 1100 ktons of carbon monoxide, 100 ktons of volatile organic compounds, and 665 million tons of carbon dioxide. These emissions resulted in an estimated 80,000 to 115,000 premature deaths and 20.0 million asthma cases from exposure to PM2.5 pollution, which cost the public and the government an estimated INR 16,000 to 23,000 crores (USD 3.2 to 4.6 billion). The emissions were estimated for the individual plants and the atmospheric modeling was conducted using CAMx chemical transport model, coupled with plume rise functions and hourly meteorology. The analysis shows that aggressive pollution control regulations such as mandating flue gas desulfurization, introduction and tightening of emission standards for all criteria pollutants, and updating procedures for environment impact assessments, are imperative for regional clean air and to reduce health impacts. For example, a mandate for installation of flue gas desulfurization systems for the operational 111 plants could reduce the PM2.5 concentrations by 30–40% by eliminating the formation of the secondary sulfates and nitrates. •Review of emission factors and emissions analysis for coal-fired power plants.•Review of environmental regulations for air pollution from coal-fired power plants.•Particulate pollution analysis via CAMx dispersion model.•Health impacts of particulate pollution from coal-fired power plants.