Sprinkle salmon fillets evenly with salt and pepper.
Place fillets, lemon rind, 1 tablespoon lemon juice, 1 tablespoon oil, and rosemary in a large zip-top plastic bag. Seal and turn to coat. Chill 30 minutes.
Remove fillets from marinade, discarding marinade.
Place fillets, skin side down, on a rack coated with cooking spray in an aluminum foil-lined broiler pan.
Broil fish 5 1/2 inches from heat 10 to 12 minutes or until fillets flake easily with a fork.
Arrange rice and arugula on a serving platter; top with fillets.
Whisk together remaining 2 tablespoons lemon juice and 1 tablespoon oil; drizzle evenly over fillets.