Regulated areas and regulatory standards based on the Odor Control Law

Establishment of Notification No. 129 on May 31, 1973
Partial amendment Notification No. 87 on April 5, 1995

Odor Control Law (Act No. 91 of 1971) Hereinafter referred to as "the law"). Regulated areas based on the provisions of Article 3 and the regulatory standards based on the provisions of Article 4 are defined as follows.

According to the provisions of Article 18, Paragraph 1 of the City Planning Act (Act No. 100 of 1968), the governor of Kanagawa Prefecture has decided as the Yokohama International Port City Construction Plan Urbanization Area.

(1)　Regulatory standards set forth in Article 4, item 1 of the Act

(2)　Regulatory standards in Article 4, item 2 of the Act

Oh, odorous substances (ammonia, hydrogen sulfide, trimethylamimine, propion aldehyde, normalbutyaldehyde, isobutylaldehyde, normal barrel aldehyde, isobarrel aldehyde, isobutyl acetate, ethyl acetate, methyl acetate, methyl acetate, methyl acetyl acetyl acetyl acetyl acetyl acetyl acetate, isobutyladehydehydehydehydehydehydehyde, isobutyl acetyl acetyl acetyl acetyl acetyl acetyl aldehydehyde, normaldehyde,

q＝0.108×He2・Cm

In this equation, q, He and Cm shall represent the following values, respectively.

q Flow flow (per cubic meter per hour converted to a state of zero degree, pressure 1 atmospheric pressure)
Height (unit meter) of discharge ports corrected by the method specified in (a)
Value (unit ppm) specified in Paragraph 2, Item 1 of Cm

This formula shall not apply if the height of the outlet corrected by the method specified in (a) is less than 5 meters.

B. Correction of the height of the outlet shall be made by the following formula.

He＝Ho＋0.65(Hm＋Ht)

Hm＝0.795√(Q・V)／(1＋2.58／V)

Ht＝2.01×10－3・Q・(T－288)・(2.30 logJ＋1／J－1)

J＝1／√(Q・V)(1,460－296×V／(T－288))＋1

In these expressions, He, Ho, Q, V and T shall represent the following values, respectively.

He Corrected outlet height (unit meter)
Ho Exactual height (unit meter) of the outlet
Q Flow discharge of exhaust gas at a temperature of 15 degrees (unit cubic meter per second)
V Emission speed of emission (unit meter per second)
Temperature of exhaust gas (Unabsolute temperature)

(3)　Regulatory standards set forth in Article 4, Item 3 of the Act

The concentration calculated by the following formula for each type of odorous substances (limited to methyl mercaptan, hydrogen sulfide, methyl sulfide, and methyl sulfide) specified in Paragraph 2, Item 1.

CLm＝k×Cm

In this equation, CLm, k, and Cm shall represent the following values, respectively.

Concentration in CLm discharged water (milligrams per liter)
k The values shown in the table below (milligrams per liter)
Value (unit ppm) specified in Paragraph 2, Item 1 of Cm

For methyl mercaptan, the standard value of the concentration in the discharged water when the calculated concentration value in the discharged water is less than 0.002 milligrams per liter for the time being.