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CITY OF PLEASANTON URBAN FOREST MASTER PLAN | 141 <br />CANOPY COVER AND EQUITY <br />3.1.2 CalEnviroScreen <br />CalEnviroScreen, an online mapping tool created <br />by the Environmental Protection Agency, identifies <br />pollution burden and vulnerability to the health <br />effects of pollution in California communities <br />(OEHHA 2018). The tool uses environmental, health, <br />and socioeconomic information to identify the <br />inequities associated with pollution throughout the <br />state. CalEnviroScreen scores are calculated using <br />21 statewide indicators to characterize Pollution <br />Burden and Population Characteristics. The Pollution <br />Burden indicators represent the potential exposures <br />to pollutants and the adverse environmental <br />conditions caused by pollution, while the Population <br />Characteristics indicators represent biological traits, <br />health status, or community characteristics that can <br />result in increased vulnerability to pollution. The data <br />is presented via scores that are mapped by census tract. The <br />scale for vulnerability is shown in percentage ranges, from 1-10% <br />(least vulnerable) to 90-100% (most vulnerable). <br />CalEnviroScreen 4.0 was used to evaluate the Pleasanton’s <br />pollution burden (shown in Table 3-2) and the results are further <br />discussed below. Figure 3-2 depicts the CalEnviroScreen <br />scores for Pleasanton’s census tracts. Of the 14 census tracts <br />that are included within the Pleasanton analysis boundary: <br /> ƒFive census tracts (approximately 41% of residents) in <br />Pleasanton had a CalEnviroScreen percentile score <br />between 30 and 40%. <br /> ƒThree census tracts (approximately 16% of residents) <br />scored between 10 and 21%. <br /> ƒThe remaining 6 census tracts (approximately 42% of <br />residents) scored below 10%. <br /> ƒThere are no census tracts in the City that scored above 40%. <br />Figure 3-2. CalEnviroScreen Map