Chemical and biological characterization of emissions from coal- and oil-fired power plants.
نویسندگان
چکیده
Emission samples were obtained from two medium-sized power plants, one fired with oil and the other with pulverized coal. Particles obtained by a miniscale plume stack gas sampler (MIPSGAS), simulating the dilution process in the plume, were subjected to detailed physical, chemical and biological characterization. Studies by scanning electron microscopy and by Coulter counter demonstrated that the particles from the oil-fired boiler were considerably larger than the particles from the coal-fired boiler. Chemical analyses revealed more organic substances and more S, Ni, V, in the oil than in the coal particles. The latter contained a larger proportion of Al, Si, Cl, K, Ca, Ti, Mn, Fe, Se, Rb, Y, Zr, Ba and Pb. Biological testing revealed a greater acute and subacute toxicity by the intratracheal route in the hamster, a greater toxicity to alveolar macrophages and a greater lung retention of BaP coated on the particles from oil combustion than on those from coal combustion. In another sampling line, employed simultaneously with the MIPSGAS-particulate sampler, the total emissions were collected, i.e., both particle and gas phase. These samples were used for chemical analyses and Ames mutagenicity test. Analyses of specific PAHs in emissions from both plants demonstrated that concentrations were below the detection limit (less than 4 ng/m3 of benzo(a)pyrene), which is in accord with an efficient combustion of the fuel. The mutagenicity of the samples were below the detection limit of the mutagenicity assay.
منابع مشابه
Review of Control Technologies for Mercury Emissions from Coal-Fired Power Plants Plus The connection of human health risks to mercury air emissions from coal-fired power plants
................................................................................................................................................. 3 Introduction ............................................................................................................................................ 3 Health Risks from Long-term Exposure to Mercury and the Link to Coal-Fired Power Plants ........
متن کاملA Review on Technologies for Reducing CO2 Emission from Coal Fired Power Plants
In recent years, global warming has been a major issue due to continuous growth of greenhouse gas emissions from different sources. It has been estimated that the global average temperature will rise between 1.4 –5.8 °C by the year 2100 (Williams, 2002). The contributors to greenhouse effects are carbon dioxide (CO2), chlorofluorocarbons (CFCs), methane (CH4), and nitrous oxide (N2O). The contr...
متن کاملAnalysis of Co-Effects on Air Pollutants and CO2 Emissions Generated by End-of-Pipe Measures of Pollution Control in China’s Coal-Fired Power Plants
China is now facing great challenges resulting from climate change and air pollution, driven by the processes of industrialization and urbanization. Greenhouse gas and air pollutant emissions produced by the coal-fired power industry represent approximately 70% of the total emissions in China’s industrial sector. In this study, 39 coal-fired power plants built in China between 2014 and 2015 wer...
متن کاملCo2 Emission and Carbon Capture for Coal Fired Power Plants in Malaysia and Indonesia
Coal consumption in Malaysia and Indonesia is growing at the rate of 9.7 and 4.7% per year since 2002, respectively. The increase in coal utilization usually tallies fairly well with the increase in CO2 emission. The present study attempts at predicting the emissions of CO2 from coal fired power plants from 2005 until 2020. The paper also analyzes the potential of carbon capture (CC) program as...
متن کاملA Review of DOE/NETL’s Mercury Control Technology R&D Program for Coal-Fired Power Plants
Mercury exists in trace amounts in coal. In the United States, coal-fired power plants emit about 48 tons of mercury and are the largest point source of emissions. The U.S. Environmental Protection Agency has determined the need to control mercury emissions from power plants. In addition, several legislative proposals have been introduced in the 108 Congress to reduce mercury emissions from the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Environmental Health Perspectives
دوره 47 شماره
صفحات -
تاریخ انتشار 1983