Emission of Polycyclic Aromatic Hydrocarbons in China by County

Abstract

Quantitative relationships among social, economic, and climate parameters, and energy consumption for Chinese provinces, provide data for regression models' estimated rates of energy consumption and emission of polycyclic aromatic hydrocarbons (PAHs) by county. A nonlinear model was used for domestic coal combustion with total population and annual mean temperature as independent variables. Linear regression models were utilized for all other types of fuel consumption. Monte Carlo simulation demonstrated that emission factors, rather than the regression modeling, constitute the main source of uncertainty in prediction. Models were validated using available energy data of several northern and southern counties of China from the literature. The total PAHs produced by each county is approximately equivalent to the sum of the total emission from energy, coke, and aluminum production.

Gas/particle partitioning and global distribution of polycyclic aromatic hydrocarbons – A modelling approach

“…PAHs and sub-micrometer carbonaceous particles have common sources: both are products of incomplete combustion and can be formed within the same chain of molecular and supra-molecular reactions (Finlayson-Pitts and Pitts, 2000). Good agreement between PAH emission distribution and aerosol optical depth, which is also linked to sub-micrometer aerosols, was observed on a regional basis (for China; Zhang et al, 2007). The scaling of PAHs with sub-micrometer particles introduces some uncertainty, particularly with regard to spatial distribution.…”

PAHs accumulation on leaves of six evergreen urban shrubs: A field experiment

“…Anthropogenic sources are the most widespread contributors (Lesage and Jackson, 1992), including vehicle and furnace exhausts, coal and oil-fired power plants, gasification/ liquefaction of fossil fuels, coke and asphalt production, waste incinerators, aluminum smelting and gas and oil flare operations. PAHs can partition among air and solid phases, with lighter congeners being more volatile and heavier terms essentially adsorbed on condensed phases; most toxic terms are usually adsorbed on particulate matter (Zhang et al, 2007;Liu et al, 2009) and in urban environments they can easily be inhaled into residents' lung. Some PAHs are well-known for their mutagenic, carcinogenic and teratogenic activities (Bostr€ om et al, 2002;Shi et al, 2010).…”

Polycyclic aromatic hydrocarbons in PM2.5 in Guangzhou, southern China: Spatiotemporal patterns and emission sources

“…Continued effort has been made worldwide to get better knowledge of PAH emissions, distributions and sources in the atmosphere [1][2][3][4][5][6]. Zhang and Tao [7] pointed out although emissions of PAHs in developed countries have decreased significantly in the past decades with the improved efficiency of energy utilization, PAH emissions from developing countries have been increasing due to rapid population growth and the associated energy demand.…”