Species correlation coefficient (# of pairs)

PM2.5

SO4

NO3

NH4

EC

OC

Peger Rd vs. Fairbanks

0.650 (182)

0.651 (182)

0.757 (176)

0.862 (182)

0.653 (182)

0.653 (182)

Fairbanks vs. North Pole

0.914 (182)

0.914 (182)

0.861 (177)

0.821 (182)

0.915 (182)

0.915 (182)

North Pole vs. Peger Rd

0.823 (182)

0.823 (182)

0.809 (180)

0.810 (182)

0.823 (132)

0.823 (182)