The Analysis for the Environmental Impact of Natural Gas Leakage and Diffusion into the Atmosphere

Abstract

In this paper, we investigate the leakage and diffusion characteristics of natural gas. As results show, when the natural gas leaks from the pipeline, it jet into the atmosphere in the form of positively buoyant jets. As a result, a hazardous area can appear at an altitude of 150m from the ground. Furthermore, the natural gas has a low concentration near the ground, this means the natural gas is less harmful to human body. In addition, the wind should be considered in the transport of leaked natural gas.

Study of Gas Diffusion Multivariate Regression Model

“…By EXCEL the data in table 1 univariate regression analysis results (as shown in figure 1-1). Get wind speed and the diffusion concentration simulation result as follow: From figure 1-1 wind speed and the concentration of gas diffusion fitting figure can be find that wind speed and concentration of four times univariate regression model can be better to response the relationship between wind speed wind speed y = -0.0026x 4 From figure 1-2 and figure 1-3 can be seen, X axis diffusion distance and the diffusion concentration of three times univariate regression model fitting degree is 0.98;Y axis diffusion distance and the diffusion concentration of four times univariate regression model fitting degree is 0.98; The two unary regression model to the original data of the fitting effect is considerable . The figure 1-3 shows as following:…”

Evaluation of Heavy Metal Pollution in Soil A Mathematical Method for Determining the Source of Pollution

“…Secondly, the diffusion of pollution obeys the mass conservation. Finally, the source strength of the pollution source is uniform and continuous [9]. According to the propagation characteristics of heavy metal pollution, this method is suitable for determining heavy metal pollution sources.…”