Open access peer-reviewed chapter

Economic Growth and Air Pollution in Iran During Development Programs

By H. Asadikia, R. Oyarhossein, S. Zare and I. Saleh

Submitted: October 16th 2010Reviewed: May 28th 2011Published: September 26th 2011

DOI: 10.5772/16916

Downloaded: 1799

1. Introduction

Air pollution means combination of air with gases that lead to decrease in quality of the air. Pollutant elements are Carbon dioxide, Monoxide, Sulfur Dioxide and etc.

Estimated annual losses of mortality due to urban air pollution are 640 million dollars i.e. 5100 billion Rials that is equivalent 0.57 percent of GDP. The disease caused of urban air pollution creates 260 million- dollar or 2100 billion- Rial cost (0.023 percent of GDP) for the economy of Iran. (World Bank, 2005).

Grossman and Krueger (1991) has analyzed relationship between air pollution and economic growth in USA. GNP per each person, time and pollution index were input in that model. Results show that there is relationship like “U” between GNP per each person and SO2 emission.

Lee (1996) has surveyed air pollution in Korea during 1985-92. The effects show that CO and income have relationship as “U” whereas Sulfur Dioxide, NO2 and Ozone did not have it.

Khanna (2002) has perused correlation between revenue in each family and CO, NO and Ozone in USA for the year of 1990. One of the important things is that in this research population, labor force, unemployment, literate people, workmen’s, housekeeper, rental house that have an effect on pollution, were Exogenous Variables. Consequences expressed that linkage in equation between income and pollution of gasses is inverse.

Pazhoyan and etal (2007) have examined respect of economic growth and air pollution with Kuznets hypothesis in 67 countries with different income. The effect of economic growth, rural population, provision of environment, number of cars, the ratio of summation of export and import on GNP have been surveyed and results emphasized Kuznets curve for environment in those countries.

This study surveys relationship between air pollution and economic growth and also, evaluation of Economical and Social Development Programs in the field of air pollution reduction. For this purpose, the study used data for 1979-2005 from the Balance Sheet Energy (2009), Iran Department of Environment (2009), Central Bank of Iran (2009) and World Development Reports (2008) has been collected. Calculation and estimates is done by Shazam and SPSS packages.

2. Methodology

The estimation of relationship between economic growth and environmental destruction has done by the use of Grossman and Krueger model with some adjustments (Eq. (1))

LNP=α0+α1LNGDP+α3LNGDP2+α4LNcar+α5LO+α6LNU+α7D1+α8D2+α9D3+εE1

Where LNP: the logarithm of pollution variable (carbon dioxide emissions per capita in thousand tons), LNGDP: the logarithm of GDP per capita in Iran (billion Rials), LNGDP2: the square logarithm of GDP per capita in Iran, LNCAR: the logarithmic number of cars produced and imported, LNO: the logarithm of the degree of openness of an economy (ratio of total exports and imports to GDP), LNU: logarithm of population (thousands), D1: dummy variable for the function of first Development Program, D2: dummy variable for the function of second Development Program, D3: dummy variable for the function of third Development Program (in each dummy variables, the number 1 is related to the program years and the number 0 for the other years). For each of the variables some classes are considered, and then the effect of them is investigated by the find results from SPSS package. Many studies done in the field of air pollution considered carbon dioxide emissions as an index of the air pollution and this gas is one of the most important gases leading to climate change and global warming. Additionally, about 72 percent of greenhouse is related to carbon dioxide, so in this study carbon dioxide emission is a criterion for air pollution.

3. Summary and conclusion

Study data are time series, so stationary test is done and the result is available in Table (1) that shows two lags are optimal and whereas calculated value is more than critical value the model is stationary.

DescriptionError term
Variabledata level
AIC criteria-5.835
Lag length2
Calculated value3.5573*
Critical value-2.57
(Source: research findings)
* 10% significance level

Table 1.

Generalized

Dickey – Fuller Unit root test results

Chi-square test shows that there are significant differences in carbon dioxide per capita for various variable levels. Considering the fifth column table (2), when the population is over 60 million people, 100 percent of pollution will be more than five ton. Significant differences exist in different classes of the export and import at one percent level of and when imports increase the level of pollution also increases. It is obvious that the highest pollution level in import and export class is in 40 to 50 billion-dollar level.

variablevariables Classification1-2 ton
(Percent)
3-4 ton
(Percent)
3-4 ton
(Percent)
More than 5 ton
(Percent)
TotalTest Results
X2
Country population20-30250807**20.87
40-6050500022
50-60255033033
More than 60005910038
Total export and import
(million person)
20000-3000075250018**22.02
40000-50000252550034
50000-60000037.516019
More than 60000012.53410029
GDP in fixed price
(billion Riala)
100000-20000010037.50025***31.16
200000-300000062.559044
300000-40000000416025
More than 400000000333
The numbers of produced and imported cars8000-280005037.50018**17.54
28000-480000258011
48000-68000037.525022
More than 680005006710049
(Source: research findings),** 5%,*** 1% significance level

Table 2.

Estimated effects of different factors on carbon dioxide emissions

Considering table 3. the emissions of CO2 during various Development Programs is different. In first and second Development Programs pollution emissions is almost equal, while during third Development Program pollution increase has had significant decrease.

The highest effect on pollution is related to economic growth variable. Since increase in economic growth is as an important goal for all government, it is necessary to this reach this goal while sustainable development is considering and environmental damage isat least.

As an illustration the most important variable that has an effect on pollution is GNP after that population has significant effect that Government must control it with training them to protect the environment.

Although summation of import and export on GNP are not punctual, it explains if importing and exporting is done easier, we can hope that productions with high expenditure will be imported without harmful effect on effect on economy of the Iran.

Instead of that we can export productions with competitive advantages.

Also government must supervise the number of cars and consumption of fuel with pollution must be prohibited, rules in big city should be modified and etc.

The of third Development Program had the remarkable effect on falling the pollution. Authorities should expand it if they want to receive sustainable development I the world.

variablescoefficientsstandard deviationt statistic
The logarithm of GDP in fixed price-7.7103***1.729-4.458
the logarithm of GDP square in fixed price2.842***0.56725.011
The logarithm of total vehicles number produced and imported0.02920.02041.432
Logarithmic degree of openness in a economy-0.28790.09600.2998
The logarithm of population0.3372**0.14912.262
dummy variable for the function of first Development Program0.200***0.03945.079
dummy variable for the function of second Development Program0.2447***0.05324.596
dummy variable for the function of third Development Program0.0794**0.04361.821
Constant coefficient2.61962.2491.165
R-SQUARE = 0.9494 R-SQUARE ADJUSTED = 0.9270
DURBIN-WATSON = 2.7128
JARQUE-BERA NORMALITY TEST- CHI-SQUARE(2 DF)=1.6833
P-VALUE=0.431
(Source: research findings),** 5%,*** 1% significance level

Table 3.

Estimated logarithmic model

© 2011 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike-3.0 License, which permits use, distribution and reproduction for non-commercial purposes, provided the original is properly cited and derivative works building on this content are distributed under the same license.

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H. Asadikia, R. Oyarhossein, S. Zare and I. Saleh (September 26th 2011). Economic Growth and Air Pollution in Iran During Development Programs, The Impact of Air Pollution on Health, Economy, Environment and Agricultural Sources, Mohamed K. Khallaf, IntechOpen, DOI: 10.5772/16916. Available from:

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