Demokratischer Smog? Eine empirische Untersuchung zum Zusammenhang zwischen Sozialschicht und Umweltbelastungen

Abstract

For years the public and scientific debate about Environmental Justice was mostly confined to the U.S. Only recently, the question about the existence and strength of the “social gradient” of environmental pollution has entered the European debate. Earlier research simply records subjective perceptions of pollution and correlates them with indicators of social status. Objective measures of environmental quality are seldom used, and even then only in studies of small geographic areas. In contrast, the present study uses various objective measures of air pollution (nitrogen dioxide, particulate matter, ozone) and road traffic noise (day, night) and assigns them to the respondents of the Swiss Environmental Survey 2007 (N = 3 369) using a geographic information system (GIS). The combination of objective GIS coded data with subjective measures allows for a new approach in Environmental Sociology that takes spatial context into account, which is often neglected in sociological studies. Using bivariate and multivariate statistical methods this objective data on pollution is related to indicators of social stratification such as income, education and nationality as well as the subjective perception of pollution. Subjective and objective measures of pollution are positively correlated with the interesting exception of ozone. Surprisingly, and contrary to the expectations, income is not significantly correlated with the pollutants considered and there is even a significant and positive correlation with education. In the multivariate analysis, however, a significant and negative correlation with income is observed, although this effect is fairly weak. Also, foreigners from Non-Western countries suffer from a higher burden of environmental pollution. However, in comparison to social and minority status differences in environmental impact between urban areas and the countryside are much more pronounced. We suppose that problems of environmental justice may be more accentuated in countries with a higher degree of segregation than in the Swiss population.