Site

State

PM AQI* (ug/m3)

Lancaster DW

PA

15

Princess Anne

MD

14

Johnstown

PA

14

York

PA

13

Dover

DE

13

Pocomoke City

MD

12

Bklyn - PS 314

NY

12

Arendtsville

PA

12

Carlisle

PA

12

SEAFORD

DE

11