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  2. Yokohama City Q & A Frequently Asked Questions
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  4. Sewerage & Rivers Bureau
  5. Water Quality Division
  6. What is the comparison of the water quality of the sewage treatment water with the Tsurumi River?

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Q

What is the comparison of the water quality of the sewage treatment water with the Tsurumi River?

Last updated on April 1, 2024.

Water supply and sewerage
A

Comparing BOD (biochemical oxygen demand) indicating the degree of water contamination by the annual average value of FY2019, the water quality of the Tsurumi River is 3.0 mg / liter at Sendai Bridge, 3.2 mg / liter at Kamenoko Bridge, 3.0 mg / liter at Otsuna Bridge, 1.8 mg / liter at Sueyoshi Bridge, Tsurumi River.
On the other hand, the annual BOD value of the effluent discharged from the Water Reclamation Center in Yokohama City in 2019 is 3.0 mg / liter, which is almost the same as the water quality of the Tsurumi River.

Inquiries to this page

Water Quality Section, Sewerage and Rivers Bureau Sewerage Facilities Department

Phone: 045-621-4343

Phone: 045-621-4343

Fax: 045-621-4256

E-Mail address [email protected]

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Page ID: 217-745-369

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