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Yokohama-shi environment monitoring center


 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.
 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)
Update day : 2017-10-19 (Rel.901)
    
What's NewWe published result of a measurement of atmospheric dioxin density of May, 2017. We published o.
・We published result of a measurement of the railroad noise of 2016.

PM2.5 Photochemical smog Press release document
Preliminary figure The current air pollution situation The air pollution situation of September Atmosphere environment monthly report of July The water pollution situation of July
The air pollution situation of 2015 Items to continuously monitor such as NO2, SPM Harmful air pollution materials such as benzene NO2 distribution map Dioxin
The water pollution situation of 2015 River and sea area River Sea area Groundwater
The traffic noise situation of 2015 Road traffic noise The plane noise The railroad noise
Findings of dioxin The atmosphere The quality of the water The soil
About environmental standards Air pollution Water pollution Dioxin Road traffic noise The railroad noise The plane noise
About tele meter system System commentary


Result of a measurement until 2014 is this.
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Of the present
The air pollution situation
 
 We release measurement data (preliminary figure) of atmosphere environment in Yokohama-shi in real time.
 Atmosphere environment time signal data (preliminary figure)
   - It is the current whole aspect, measurement data (preliminary figure) of all items. -
 Daily report (we pass and change at time) data (preliminary figure) of atmosphere environment
   - Of day according to item pass, and is measurement data (preliminary figure) of time change (24 hours). -
 PM2.5 (microparticulate matter) measurement data (preliminary figure)
   - It is current PM2.5 (microparticulate matter) measurement data (preliminary figure). -
 We update for the latest data for 15 minutes an hour.
 We can see with not only PC but also smartphone.

 We display page of air pollution result of a measurement to continuously monitor in Kanagawa.
   - It is measurement data (preliminary figure) of current air pollution in Kanagawa. -

 Air pollution wide area monitoring system (broad bean you : We display top page of Ministry of the Environment).
   - It is measurement data (preliminary figure) of national current air pollution. -

 Ministry of the Environment pollen observation system (Hanako : We display top page of Ministry of the Environment).

 We display page of Meteorological Agency yellow sand information.

PM2.5
   Of ever 12-month microparticulate matter (PM2.5) pass; daily fluctuations graph (preliminary figure)
 
2017 2016 2015 2014 2013 2012 2011

 Plan of measurement point of PM2.5

 We display page about "microparticulate matter" (PM2.5) of Kanagawa.

 We display page of highly-concentrated forecast of microparticulate matter (PM2.5) by Kanagawa.
   - The Kanagawa prefecture is morning and high density forecast of daytime PM2.5 going twice every day. -

 We display page of result of a measurement of microparticulate matter (PM2.5) in Kanagawa.
   - It is measurement data (preliminary figure) of current PM2.5 in Kanagawa. -

 Breaking news data (Yokohama-shi) of PM2.5 with cell-phone
    (it is screen layout for cell-phone, but can look even at PC.)

 Breaking news data (Kanagawa) of PM2.5 with cell-phone
    (it is screen layout for cell-phone, but can look even at PC.)

 Telephone service (Kanagawa) about having PM2.5 or not of alerting,
    Telephone (050-5893-9344 and 9345)

 Prevention of Kanagawa pollution promotion meeting suspended particulate matter measures examination sectional meeting made leaflet called "microparticulate matter PM2.5" (printing block is this for 2,012 years.) .

Photochemical smog
   The official announcement situation (2017) of photochemical smog alarm (table)

    - In 2017, the fifth warning was announced on fourth, August 26 on August 25. - (as for the past situation from this)
 
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 Photochemical oxidant density (2017) of day when photochemical smog alarm was announced (table)
    (as for the past situation from this)
 
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 Aging changes (... 2017) such as the official announcement number of times of photochemical smog alarm (table and graph)


 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 PC. When photochemical smog alarms are announced, E-mail is delivered to Yokohama-shi.

 About emergency management information E-mail (Yokohama-shi) ← 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 main menu of the photochemistry warning official announcement situation (Kanagawa).

 Telephone service (Kanagawa) about the outbreak situation of photochemical smog,
    Telephone (050-5893-9342 and 9343)

 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"

Of past one year
Press release document
   About the situation such as the 2016 atmosphere, water regime(2017-08-01)

 We can refer to press release document more than one year ago from here.

---- Air pollution ----

Monthly preliminary figure
    -Preliminary figure - of September, 2017

 The air pollution situation (table) of September, 2017
                             
2016 2017
October November December January February MarchApril May June JulyAugustSeptember

 Change (table) of the moon mean until July, 2017 for 12 months

 Change (graph) of the moon mean until July, 2017 of 5 years


Atmosphere environment monthly report
   Atmosphere environment monthly report (preliminary figure) of July, 2017 (table)
 Past atmosphere environment monthly report from this (as for the downloading of compressed file from this)
   - Measurement data of interval becomes the face every measurement date, measurement station, item in every hour for one month. -

Item to continuously monitor
(NO2, SPM)
   The environmental standard conformity situation (table) of 2015
   - About nitrogen dioxide, suspended particulate matter, microparticulate matter, sulphur dioxide, carbon monoxide, 6 materials of photochemical oxidant, we show propriety of yearly average level and environmental standard of each measurement station. -
 
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 Annual result of a measurement (annual value and monthly price) of 2015 (table)
   - About air pollution materials such as nitrogen dioxides, we show yearly average level or the moon mean of each measurement station. -
     (as for the past result of a measurement from this)
 
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 Aging change (... 2015) of yearly average level (table and graph)

 Aging change (... 2015) of the number of the environmental standard conformity station of nitrogen dioxide (NO2) (table)

 Aging change (... 2015) of the number of the environmental standard conformity station of suspended particulate matter (SPM) (table)

 Aging change (... 2015) of the number of the environmental standard conformity station of microparticulate matter (PM2.5) (table)

 Change (... 2015) of the number of the environmental standard conformity station for the past 10 years (table)

 Change (... 2015) of the continuation station mean for the past 10 years (table)

 Change (... 2015) of the air pollution situation for the past 10 years (graph)

 Year comparisons (... 2015) such as the moon means of nitrogen dioxide (NO2) for the past 5 years (graph)

 Year comparisons (... 2015) such as the moon means of suspended particulate matter (SPM) for the past 5 years (graph)

 Change graph of sulphur dioxide density from August, 2000

 Density change (2015) according to the time (graph)
 
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 Air pollution and meteorological change (2015) (graph)
 
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 Frequency distribution (2015) of the direction of the wind (table)
 
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 Plan (2016) of air pollution station to continuously monitor

 The air pollution situation of Yokohama-shi other cities and comparison (2014) (graph)
 
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 PDF version of air pollution working papers first report (1960) - 55th report (2014) is this.

Harmful air pollution material
   Yearly average level of harmful air pollution materials concentration such as benzene (2015) (table)
   - It is the conformity situation of yearly average level and environmental standard of harmful air pollution materials such as benzene, trichloroethylene, tetrachloroethylene, dichloromethane. -
 
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 Annual result of a measurement (2015) of harmful air pollution materials concentration such as benzene (table)
   - It is monthly result of a measurement of harmful air pollution materials such as benzene, trichloroethylene, tetrachloroethylene, dichloromethane. -
 
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NO2 density distribution map
   City density of nitrogen dioxide (NO2) by simple assay distribution map (2015)
   - From nitrogen dioxide density by simple assay in 112 spots in the city, we made density distribution map in the city. -
 
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Investigation that was finished
   - It is result of air pollution investigation by hand analysis that finished the measurement. -

 Result of a measurement (from 1957 to 2003) of we increase descent times, pitching a camp

 Aging change (table) of sulfur oxide concentration by the lead dioxide method (from 1959 to 1991)

 Result of a measurement (table) of harmful air pollution material (from 1982 to 1991)

 Result of a measurement (from 1991 to 1999) of atmospheric Freon and organochlorine-based material


Environmental standards
   About atmospheric environmental standard (Environmental Agency notification and evaluation method)
   - It is environmental standards such as nitrogen dioxide, suspended particulate matter, sulphur dioxide, carbon monoxide, photochemical oxidant. -

 About conformity condition of environmental standard of air pollution material

 About the handling of the number of the effective beams in environmental standards

 About the handling of measurements and evaluation method

 About laws and ordinances about continuously monitoring of air pollution


Tele meter system
   About the atmosphere, quality of the water tele meter system to continuously monitor

---- Dioxin ----

Dioxin
   Result of a measurement (May, 2017: in spring) of atmospheric dioxin density (table)
   - It is result of a measurement of atmospheric dioxin density in six spots in the city. -

 Result of a measurement of conventional atmospheric dioxin density is this. (table)

 Annual result of a measurement (2016) of atmospheric dioxin density (table)
 
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 Change (1) (... 2008) of yearly average level of atmospheric dioxin density (table and graph)

 Change (2) (2009 ...) of yearly average level of atmospheric dioxin density (table)

 Result of a measurement (2016) of dioxin density in sea area and groundwater (table)
   - It is result of a measurement of the dioxin density of quality of the water (river, sea area, groundwater). -
 
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 Result of a measurement of the dioxin density of soil

Environmental standard
   About environmental standard of dioxin (the atmosphere, the quality of the water, quality of bottom, the soil)

---- Water pollution ----

Monthly preliminary figure
    -Preliminary figure - of July, 2017

 The water pollution situation (table) of river of July, 2017
 
2016 2017
August September October November December January February March April May June

 Change (table) of the moon mean of river until July, 2017

 The water pollution situation (table) of sea area of July, 2017
 
2016 2017
August September October November December January February March April May June

 Change (table) of the moon mean of sea area until July, 2017

 Change (graph) of BOD and COD until July, 2017 for 12 months

River and
Sea area
   That river near house? (2015) (map)
   - We classify degree of the quality of the water of river and the sea in picture of 4 ranks and show at position of measurement point in map. -
 
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 The environmental standard conformity situation (2015) of health standards (table)
   - It is the conformity situation of environmental standard of health standards 27 materials such as cadmium or cyan. -
 
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 Quality of the water annual result of a measurement (2013) of public waters (table)
 
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 Annual result of a measurement (2015) by quality of the water automatic measurement (table)
 
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 Plan (2015) of measurement point of the quality of the water of river and sea area

River
   Annual result of a measurement (2015) of element related to environmental living of river (table)
   - It is the conformity situation of environmental standards such as pH, BOD, oxygen content of water in river. -
 
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 Yearly average level of the quality of the water of river (2015) (table)
 
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 Aging change (... 2015) of the environmental standard conformity situation of BOD of river (table)

 Aging change (public waters quality of the water investigation) of yearly average level of BOD of river (... 2015) (table)

 Aging change (public waters quality of the water investigation) of 75% value of BOD of river (... 2015) (table)

 Aging change (public waters quality of the water investigation) of yearly average level of BOD of river (... 2015) (graph)

 Aging change (small and medium size river quality of the water investigation) of yearly average level of BOD of small and medium size river (... 2015) (table)

 Aging change (small and medium size river quality of the water investigation) of yearly average level of BOD of small and medium size river (... 2015) (graph)

Sea area
   Annual result of a measurement (2015) of element related to environmental living of sea area (table)
   - It is the conformity situation of environmental standards such as pH, COD, oxygen content of water in sea area. -
 
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 Yearly average level of the quality of the water of sea area (2015) (table)
 
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 Aging change (... 2015) of the environmental standard conformity situation of COD of sea area (table)

 Aging change (... 2015) of yearly average level of COD of sea area (table)

 Aging change (... 2015) of 75% value of COD of sea area (table)

 Aging change (... 2015) of yearly average level of COD of sea area (graph)

 Annual result of a measurement (2015) of all nitrogen of sea area and total phosphorus (table)
   - It is yearly average level of all nitrogen in sea area and total phosphorus. -
 
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 Aging change (... 2015) of the conformity situation of environmental standard of all nitrogen of sea area and total phosphorus (table)

 Aging change (... 2015) of yearly average level of all nitrogen of sea area and total phosphorus (table)

 Aging change (... 2015) of yearly average level of all nitrogen of sea area and total phosphorus (graph)

Groundwater
   Result of a measurement (2015) of the quality of the water of groundwater (table)
   - It is the conformity situation of environmental standard of health standards such as cadmium or cyanogen in groundwater. -
 
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 Environmental standard excess item (2015) of the quality of the water of groundwater
 
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Result of a measurement (2015) according to point of the quality of the water of groundwater
   - It is result of a measurement according to point that we classified in every kind of quality of the water investigation into groundwater. -
 
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 Plan (2015) of measurement point of the quality of the water of groundwater
 
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Environmental standards
   About environmental standard of the quality of the water of river and sea area (public waters)

 About environmental standard of the quality of the water of groundwater

---- Road traffic noise ----

Road traffic noise
   Result of a measurement (2015) of road traffic noise level (table)
 
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 Evaluation result (2015) of aspect of road traffic noise (table)
   - It is conformity ratio of environmental standards such as houses in area facing the highway. -
 
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 Aging change (... 2007) of road traffic noise level (table)
   - It is aging change of noise level at point to continuously monitor until 2007.

 Aging change (... 2007) of the environmental standard conformity point number of road traffic noise (table)
   - It is aging change of the environmental standard situation of the noise at point to continuously monitor until 2007.

 Plan (2015) of line targeted for evaluation of aspect of road traffic noise and measurement point
 
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Environmental standards
   About environmental standard of the noise

 About request limit of vehicle noise

 About request limit of road traffic vibration

---- The railroad noise ----

The railroad noise
   The conformity situation (2016) of the noise (environmental standard) of the Tokaido Shinkansen and vibration (guideline level) (table)
   - It is the noise and the situation of vibration to be able to put along the Tokaido Shinkansen. -
 
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 Aging change (... 2016) of noise level of the Tokaido Shinkansen and vibration level (table and graph)

 Aging change (... 2016) of noise level of Tokaido goods line and vibration level (table)

 Plan of the noise, vibration measurement point of the Tokaido Shinkansen and Tokaido goods line

Environmental standards
   About environmental standard of the Bullet train noise

 About guideline of Bullet train vibration

---- The plane noise ----

The plane noise
   Annual result of a measurement (2015) of the plane noise (table)
   - It is the situation of the plane noise in three spots near Atsugi base in western Yokohama-shi. -
 
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1999
The year
1998
The year
1997
The year

 Of plane noise level pass; moon change (2015) (graph)

 Plan of measurement point of the plane noise

Environmental standard
   About environmental standard of the plane noise

Inquiry about homepage of environmental monitoring center,
     Have a seat in telephone 045-671-3507 (directly).

We issue the next report every year in environmental monitoring center, and you can see in library in the city.
(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
    ※ Report for PDF is this.

It is guide map to environmental monitoring center.
Homepage address of Yokohama-shi environment monitoring center………
http://translate-en.city.yokohama.lg.jp/kankyo/mamoru/kanshi/

We update on making - October 19, 2017 on City of Yokohama, Environmental Planning Bureau environment Maintenance Division Environment Administration Division monitoring center - March 15, 1998
It is inquiry - ks-kankyokanri@city.yokohama.jp - telephone opinion: 045-671-3507 - FAX: 045-641-3580
©1998-2017 City of Yokohama. All rights reserved.