Pacoima is a working class, Hispanic-majority neighborhood in the San Fernando valley. According to CalEnviroScreen, a tool that measures pollution burden, it ranks 21 of 127 areas in Los Angeles county.

Community members placed air sensors to track pollution from sources such as industrial sites, freeways, railroads and an airport.

Pacoima is a working class, Hispanic-

majority neighborhood in the San Fernando valley. According to CalEnviroScreen, a tool that measures pollution burden, it ranks 21 of 127 areas in Los Angeles county.

Community members placed air sensors to track pollution from sources such as industrial sites, freeways, railroads and an airport.

Pacoima is a working class, Hispanic-majority neighborhood in the San Fernando valley. According to CalEnviroScreen, a tool that measures pollution burden, it ranks 21 of 127 areas in Los Angeles county.

Community members placed air sensors to track pollution from sources such as industrial sites, freeways, railroads and an airport.

Pacoima is a working class, Hispanic-majority neighborhood in the San Fernando valley. According to CalEnviroScreen, a tool that measures pollution burden, it ranks 21 of 127 areas in Los Angeles county.

Community members placed air sensors to track pollution from sources such as industrial sites, freeways, railroads and an airport.

Pacoima is a working class, Hispanic-majority neighborhood in the San Fernando valley. According to CalEnviroScreen, a tool that measures pollution burden, it ranks 21 of 127 areas in Los Angeles county.

Community members placed air sensors to track pollution from sources such as industrial sites, freeways, railroads and an airport.