TABLE 3 - B.C. P.C.B. EMISSION OBJECTIVES CONTAMINANT UNITS LEVEL A LEVEL B LEVEL C 1. Total Particulate mg/m 3 343 GR/SCF 0.150 2. Sulphur 3 dioxide mg/m 666 2662 6656 PPM 250 1000 2500 UNITS: neraae milligrams per cubic meter GR/SCF grains per standard cubic foot PPM parts per million METHODS SPECIFIED: 1. Total particulate: isokimetric sampling on a 0.3 micrometer pore size glass fibre filter followed by gravimetric analysis. 2. Sulphur dioxide: continuous analyzer on discharges over 250 ppm. Objectives for unusual pollutants such as fluoride, zinc, and others do exist, but have been excluded from this report since they are essentially irrelevant to Cassiar.