100032004 Wilmington DE January, February and March Frequency by Seasonal Wind Frequency The Wind Direction When Hours are Greater than 25 UG/M3 Does the Pollution Wind Rose Just Reflect the Seasonal Wind Frequency or Does the Pollution Wind Rose Point to Areas of Emissions?

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2 knots Per Hour

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12 Knots Per Hour

340070003 Camden, NJ January, February and March Frequency by Seasonal Wind Frequency The Wind Direction When Hours are Greater than 25 UG/M3

1 Knots Per Hour

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9 Knots Per Hour

Data Map Philly PM 2.5 FRM 23MAR05

HySplit Back Trajectory Philly midnight 23MAR05

One Day Wind Rose MLK 23MAR05