Correlation Analysis Between the Components of Energy Balance and Pollutant Emissions
2021
Zaporozhets, Artur O.
In the paper, a correlation analysis is carried out between the components of the energy balance (types of energy resources, the transformation sector, and energy consuming industries) and pollutant emissions (CO₂, SO₂, NO₂, CO, PM10, PM2.5) using the example of Ukraine. In general, 153 samples were formed and considered, characterizing the relationship between the components of the energy balance and pollutant emissions. Due to the relatively small sample sizes, the corrected assessment of the correlation coefficient [Formula: see text] was used as an informative parameter of the correlation analysis. The significance of the [Formula: see text] was tested using 2 hypotheses: (1) about the randomness of deviation from 0 using t-distribution with (n−2) degrees of freedom and significance level α = 0.05; (2) about the relationship between random variables with the limiting value rα. The confidence boundaries for the [Formula: see text] with a probability of P = 0.95 were calculated using the Fisher Z-transform. It is shown that 70% of the considered samples have a positive correlation relationship, and more than 24% have a negative correlation relationship. Coal and peat have the greatest impact on pollutant emissions (SO₂, NO₂, PM10) ([Formula: see text] > 0.95). The smallest value was recorded between gas enterprises and PM10 emissions ([Formula: see text] = −0.907).
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