EnviroScreen75th

Census tracts within Oakland California that are in the upper 25th percentile statewide for CalEPA's Cal Enviroscreen 2.0, which compiled a series of socioeconomic and environmental indicators to determine "environmentally disadvantaged communities".

More information and methodology, plus the complete dataset available at http://oehha.ca.gov/ej/ces2.html

Querying over HTTP

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

curl https://data.splitgraph.com/sql/query/ddn \
    -H "Content-Type: application/json" \
    -d@-<<EOF
{"sql": "
    SELECT *
    FROM \"oaklandca-gov/enviroscreen75th-kin6-dbkc\".\"enviroscreen75th\"
    LIMIT 100 
"}
EOF

See the Splitgraph documentation for more information.