Spatial distribution of PurpleAir (triangles) and EPA (squares) sensors across California, shown in relation to major cities LULC classes. (IMAGE)

Big Earth Data

Spatial distribution of PurpleAir (triangles) and EPA (squares) sensors across California, shown in relation to major cities LULC classes.

Caption

Spatial distribution of PurpleAir (triangles) and EPA (squares) sensors across California,

shown in relation to major cities LULC classes.

Credit

Big Earth Data

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