Air & Transportation

Regulatory Measures against Air Pollutants Emitted from Factories and Business Sites and the Outline of Regulation - Specific substance emission facilities and designated substance control standard for benzene

Specific substance emission facilities and designated substance control standard for benzene

Designated substance emission facilities
(designated by government ordinance)
Outline of designated substance restriction standard
(set by official notification)
1 Drying facilities to evaporate benzene (limited here and in subsequent sections to solutions in which volumetric percentage of benzene concentration is at least 60 %) and the hourly draft fan capacity of which is at least 1,000 cubic meters. Limited to facilities designed to evaporate benzene used in solvents.
Existing facility:
200 mg/m3N (Gas emission 1,000 m3/h or greater but less than 3,000 m3/h)
100 mg/m3N (Gas emission 3,000 m3/h or greater)
New facility:
100 mg/m3N (Gas emission 1,000 m3/h or greater but less than 3,000 m3/h)
50 mg/m3N (Gas emission 3,000 m3/h or greater)
2 Coke oven that processes raw materials at a daily rate of at least 20 tons. Applied to gas emitted from the coal loading port and also from the discharge port of the dust collector on the coal-loading vehicle.
Existing facility:
100 mg/m3N (Ovens of a certain construction may be excluded from the scope of application.)
New facility:
100 mg/m3N
3 Distillation facility for recycling benzene (excluding the topping plant) Limited to facilities designed to recycle benzene used as solvent
Existing facility:
200 mg/m3N (Gas emission 1,000 m3/h or greater)
New facility:
100 mg/m3N (Gas emission 1,000 m3/h or greater)
4 A dealkylation facility used to manufacture benzene (excluding sealed type) Excluding facilities incorporating the flare stack in the process
Existing facility:
100 mg/m3N
New facility:
50 mg/m3N
5 A storage tank of benzene with a capacity of at least 500 kiloliters Excluding tanks with a floating roof. Also, the criteria apply to gas emitted when benzene is in the tank.
Existing facility:
1,500 mg/m3N (Capacity of at least 1,000 kl)
New facility:
600 mg/m3N
6 A reaction facility which uses benzene as a raw material and which processes benzene at an hourly rate of at least 1 ton (excluding sealed type). Excluding facilities incorporating the flare stack in the process
Existing facility:
200 mg/m3N (Gas emission 1,000 m3/h or greater but less than 3,000 m3/h)
100 mg/m3N (Gas emission 3,000 m3/h or greater)
New facility:
100 mg/m3N (Gas emission 1,000 m3/h or greater but less than 3,000 m3/h)
50 mg/m3N (Gas emission 3,000 m3/h or greater)
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