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| 1 |
ID:
180182
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| Summary/Abstract |
Administrative and order-based environmental regulation policies have always been the main means of pollution control by the government. While, their effects are difficult to assess. The Chinese government implemented a desulfurization subsidy policy for on-grid tariffs, which was implemented in two phases (phase 1: 2004 to 2006; phase 2: since 2007). Considering the dynamic characteristics of the policy, this study adopted three empirical strategies, including difference-in-differences (DID) and pseudo DID method, to verify the causal relationship between the policy and SO2 reduction in China's coal-fired power plants. The results show that there is a clear causal relationship between the policy and SO2 emission reduction. Moreover, the dynamic effect of the desulfurization price subsidy policy has shown an increasing annual trend. The desulfurization price subsidy has effectively motivated enterprises to implement desulfurization facilities, meaning that the capacity for desulfurization and the associated operating costs have been significantly improved. In addition, heterogeneity shows that the desulfurization price subsidy policy performs better in higher marketization and underdeveloped regions. Thus, the Chinese government should strengthen the implementation of electricity price subsidies for desulfurization, and pay attention to the effect and duration of the policy in the process of implementation.
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| 2 |
ID:
086203
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| Publication |
2009.
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| Summary/Abstract |
This paper aims at estimating the Environmental Kuznets Curve (EKC) for the sulphur dioxide (SO2) emissions in a panel of 28 Chinese provinces. First, using a fixed effects model, econometric findings reveal an N shape EKC with a turning point of 4500 yuans (index 1990). However, a Chow test reveals a break in 1995, so that the estimation of the model indicates an increasing linear relationship between GDP per capita and SO2 emissions. The previous results imply that the decrease of the Chinese sulphur dioxide emissions during 1996-1999 did not result from the ECK but from an exogenous public action.
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| 3 |
ID:
112273
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2012.
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| Summary/Abstract |
Steam power plants using heavy oil provided about 17.4%, equivalent to 35.49 TWh, of electricity in Iran in 2007. However, having 1.55-3.5 weight percentage of sulfur, heavy oil produces SO2 pollutant. Utilization of Flue Gas Desulfurization systems (FGD) in Iran's steam power plants is not common and thereby, this pollutant is dispersed in the atmosphere easily. In 2007, the average emission factor of SO2 pollutant for steam power plants was 15.27 g/kWh, which means regarding the amount of electricity generated by steam power plants using heavy oil, 541,000 Mg of this pollutant was produced. In this study, mass distribution of SO2 in terms of Mg/yr is considered and dispersion of this pollutant in each of the 16 steam power plants under study is modeled using Atmospheric Dispersion Modeling System (ADMS). Details of this study are demonstrated using Geographical Information System (GIS) software, ArcGIS. Finally, the average emission factor of SO2 and the emission of it in Iran's steam power plants as well as SO2 emission reduction programs of this country are compared with their alternatives in Turkey and China.
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