- Yokohama-shi Top Page
- Business
- Menu by field
- Environment, parks and sewers
- Living Environment conservation
- Air and odor
- Air Pollution Control Law
- Mercury Emission Facilities
- Mercury emission facilities and emission standards
Here's the text.
Mercury emission facilities and emission standards
Last Updated April 10, 2024
| Item number | Mercury Emission Facilities | Scale and requirements of facilities (Those that fall under any of the following) |
Emission Standards ※１ | |||
|---|---|---|---|---|---|---|
New construction |
Existing facilities |
|||||
| １ | Small coal-fired boiler ※４ | ・Heat transfer area of 10 m2 or more ・Combustion capacity ※350L/h or more |
10 | 15 | ||
| ２ | Coal-fired boiler Large coal-fired boiler |
8 | 10 | |||
| ３ | Refining and roasting processes used in the production of nonferrous metals (copper, lead, zinc and industrial gold) | Primary facilities | Copper |
●Roasting furnaces, sintering furnaces (including pellet firing furnaces) used for metal smelting and melting furnaces (including melting reverberatory furnaces) used for smelting of metals Translation furnaces and flat furnaces ・Raw materialprocessing capacity of 1t/h or more ●Dissolving furnaces (excluding Koshiki furnaces) used for metal refining ・Grate area of 1 m2 or more ・Intersectional area of 0.5 m2 or more ・Combustion capacity ※350L/h or more ・Transformer rated capacity of 200kVA or more ●Roasting furnaces, sintering furnaces (including pellet firing furnaces) used for refining copper, lead or zinc. Melting furnaces (including reverberatory furnaces for melting) Trans furnaces, melting furnaces and drying furnaces ・Raw material processing capacity 0.5t/h or more ・Grate area of 0.5 m2 or more ・Intersectional area of 0.2 m2 or more ・Combustion capacity ※320L/h or more ●Dissolving furnaces used for secondary refining of lead ・Combustion capacity ※310L/h or more ・Transformer rated capacity of 40kVA or more ●Roasting furnaces, sintering furnaces, blast furnaces, melting furnaces and drying furnaces used for the collection of zinc ・Raw material processing capacity 0.5t/h or more |
15 | 30 |
| ４ | Lead |
30 | 50 | |||
| ５ | Secondary facilities | Copper, lead |
100 | 400 | ||
| ６ | Industrial gold | 30 | 50 | |||
| ７ | Used for the production of cement |
・Grate area of 1 m2 or more ・Combustion capacity ※350L/h or more ・Rated capacity of transformer 200kVA or more |
50 | 80 |
||
| ８ | Waste incinerators (general waste / |
・Grate area of 2 m2 or more ・Incineration capacity 200 kg/hour or more |
30 | 50 | ||
| ９ | Incinerators for mercury-containing sludge | Industrial waste required to collect mercury ※6 |
50 | 100 | ||
※1 Even for existing facilities, if a major renovation with an increase in mercury emissions (structural change in which the facility scale increases by more than 50%), the emission standards for new facilities will be applied.
※2 Facilities that are currently installed on the enforcement date (April 1, 2018) (including those for which construction of installation has been started)
※3. The combustion capacity of a burner is expressed in terms of heavy oil. For the conversion of fuels other than heavy oil to heavy oil, please refer to “How to convert fuels other than heavy oil to the amount of heavy oil”.
※4 burner combustion capacity of less than 100,000 L/h of heavy oil equivalent
※5 For those with a mercury content of 0.05 mg or more in 1 kg of limestone used as raw materials, it is 140 μg / Nm3.
※6 Mercury recovery mandatory industrial waste is stipulated in the Ordinance for Enforcement of the Waste Management and Public Cleansing Law.
※7 Mercury-containing recycled resources are stipulated in the Act on Prevention of Environmental Pollution by Mercury.
[Reasons, etc.]
Article 2, Paragraph 13, Article 18-22 of the Air Pollution Control Act
Article 3-5 of the Air Pollution Control Law Enforcement Order
Article 5-2, Article 16-11, Attached Table 3-3, Supplementary Provisions (Ministry of the Environment Ordinance No. 22, September 26, 2016)
Inquiries to this page
Atmosphere and Sound Environment Division, Environmental Protection Department, Green Environment Bureau
Telephone: 045-671-3843
Telephone: 045-671-3843
Fax: 045-550-3923
Email address: mk-taikikisei@city.yokohama.lg.jp
Page ID: 603-525-845
