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Yokohama-shi continuously monitors air pollution, water pollution (river, sea area, groundwater), traffic noise (road, railroad, plane) based on the Air Pollution Control Act, Water Pollution Control Law, the Act on Special Measures concerning Countermeasures against Dioxins, noise-control regulations. This page is menu page to tell about these latest result of a measurement.

Last update date January 8, 2021

The current atmosphere environment data

We release measurement data (preliminary figure of time value) of the atmosphere environment in Yokohama-shi in real time.

The atmosphere environment time signal data (the outside site) (preliminary figure)
-It is the current whole aspect, measurement data (preliminary figure) of all items. -
Daily report (pass through items, and change at time) data (the outside site) of the atmosphere environment (preliminary figure)
-Of day according to item pass, and is measurement data (preliminary figure) of time change (24 hours). -
Daily report (pass through the measurement station, and change at time) data (the outside site) of the atmosphere environment (preliminary figure)
-Of day according to the measurement station pass, and is measurement data (preliminary figure) of time change (24 hours). -
PM2.5 (microparticulate matter) measurement data (the outside site) (preliminary figure)
-It is current PM2.5 (microparticulate matter) measurement data (preliminary figure). -
About two measurement station of "chukukahidai" and "Konan Ward Noba Junior High School", we are not measuring now to another place in the same ward because it is during move work.
Measurement data (the outside site) of space radiation dose (preliminary figure)

PM2.5 (microparticulate matter)

PM2.5 (microparticulate matter) measurement data (the outside site) (preliminary figure)
-It is current PM2.5 (microparticulate matter) measurement data (preliminary figure). -
Of 12-month microparticulate matter (PM2.5) ever pass; daily fluctuations graph (the outside site) (preliminary figure)
Phone number of telephone service (Kanagawa) about having PM2.5 or not of alerting is 050-5306-2686.
Prevention of Kanagawa pollution promotion meeting suspended particulate matter measures examination sectional meeting made leaflet of "microparticulate matter PM2.5" (PDF: 1,757KB).

Photochemical smog

The official announcement situation (2020) of photochemical smog alarm
Aging changes (... 2020) such as the official announcement number of times of photochemical smog alarm
About photochemical smog
In Yokohama-shi, we added "photochemical smog information" to "disaster prevention information E-mail" which we delivered for cell-phone and home PCs. When photochemical smog alarms are announced, E-mail is delivered to Yokohama-shi.
About disaster prevention information E-mail (Yokohama-shi) (the outside site) ← registration method from this.
Kanagawa tells about information about photochemical smog by the Internet or telephone service.
When photochemical smog alarm is announced, we carry out service to tell about information such as official announcement area or the time by email of cell-phone. In addition, we tell about information about PM2.5.
Please see Web site of next Kanagawa about usage.
We display air pollution result of a measurement home (Kanagawa) (the outside site) to continuously monitor.
Phone number of telephone service (Kanagawa) about the outbreak situation of photochemical smog is 050-5306-2687.
We distribute the following brochure to schools in the prefecture, and Kanagawa calls for attention to protect children from damage of photochemical smog.
"To protect children from photochemical smog" (the outside site)

Air pollution

Water pollution

Plan (measurement plan) of water quality measurement point

<monthly preliminary figure>

The water pollution situation (preliminary figure) of river

Change (table) of the moon mean of 12-month river ever

The water pollution situation (preliminary figure) of sea area

Change (table) of the moon mean of 12-month sea area ever

The railroad noise

Press release material

Environmental standards

The atmosphere

The quality of the water

Dioxin

Road traffic noise

The Bullet train noise

Others

About result of acid rain and the study section, please see homepage of Yokohama-shi environmental science research institute. As a general rule, in the Web page of Yokohama-shi, link is free. (as for the details this)

Tele meter system

Inquiry

Hang inquiry about homepage of environmental monitoring center in telephone 045-671-3507 (direct).
We issue the next report every year in environmental monitoring center, and you can see PDF version here.

(1)Yokohama-shi air pollution working papers
(2)Water quality measurement debrief report of Yokohama-shi public waters and groundwater
(3)Result of a measurement report of the noise, vibration in Yokohama-shi

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Inquiry to this page

Environmental Planning Bureau environment Maintenance Division Environment Administration Division

Telephone: 045-671-3507

Telephone: 045-671-3507

Fax: 045-641-3580

E-Mail address [email protected]

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