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