020-2 Wyo. Code R. §§ 2-8 - Ambient Standards for Suspended Sulfates
(a) The ambient air standards for suspended sulfate measured as a sulfation rate by the lead peroxide method are:
(i) 0.25 milligrams SO3 per 100 square centimeters per day, maximum annual average;
(ii) 0.50 milligrams SO3 per 100 square centimeters per day, maximum 30-day value.
Notes
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