TOKYO 　 METROPOLITAN 　RESEARCH 　 INSTITUTE 　 FOR 　　　　

　　　　　 　　　　　　　ENVIRONMENTAL 　 PROTECTION 　　

　　　 　

Outline this presentation

• Tokyo Metropolis in Japan

• Outline of our institute

• Air quality in Tokyo

• Scope of our research related air pollution

• Other Scope of our research

Tokyo Metropolis

Population 12million

JapanArea 377,835km2

Population　127million

Administrative organ

47 prefecture-level governments

　 Approx.2000 city-level governments

Outline of Tokyo Metropolitan Research Institute for

Environmental Protection

• Established in 1968

• Provide scientific knowledge for environmental policy in Tokyo

• Organization– Planning and Management Division – Fundamental Research Division– Applied Research Division– Analytical Research Division

Air quality of Tokyo

Environmental Standard of Ambient Air

• SO2 Sulfur dioxide

• CO Carbon monoxide

• NO2 Nitrogen dioxide

• SPM Suspended particulate matter

• Ox Photochemical oxdants

Monitoring at 47 general stations and 35 road side stations

Air quality of Tokyo

SO2 CO

Annual average concentrations

0

0.005

0.010.015

0.02

0.025

1975 1985 1995 2005Year

SO

2(p

pm

) General

Road side

0

1

2

3

4

5

1975 1985 1995 2005Year

CO

(pp

m)

General

Road side

Air quality of Tokyo

NO2 SPM

Annual average concentrations

0

0.02

0.04

0.06

0.08

0.1

1975 1985 1995 2005Year

SP

M(m

g/m

3) General

Road side

0

0.02

0.04

0.06

0.08

0.1

1975 1985 1995 2005Year

NO

2(p

pm

)

General

Road side

Air quality of Tokyo

Ox

Annual average concentrations

0

0.01

0.02

0.03

0.04

1975 1985 1995 2005Year

Ox(

pp

m)

General

Scope of our research related to air pollution

•Evaluation of automotive exhaust gas reduction technologies

•Development of diesel particulate filter

•Analysis of Ox increasing

•Monitoring of VOCs

•Evaluation of VOC treatment equipments

Evaluation of automotive exhaust gas reduction technologies

Measurement of exhaust gas from a large-sized vehicle

Development of Diesel particulate filter

Analysis of Ox increasing

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

1989

1991

1993

1995

1997

1999

2001

2003

phot

oche

mic

al o

xida

nt, n

itro

gen

oxid

es

ppm

（）

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

non-

met

hane

hyd

roca

rbon

s (p

pmC

)

Annual average concentrations

NOx

NMHC

Ox

Monitoring of VOCs (Volatile organic compounds)

Automated Monitoring System for Air Pollutants

Evaluation of VOC treatment equipments

Other Scope• Studies on Urban heat island

• Analysis of Dioxins and PCBs and Low-Level Hazardous Chemicals

• Effects of wastewater inflow on water quality in Tokyo Bay

• Research on Wastes and Landfill

• Noise, Vibration and Odour

Studies on Urban Heat Island

Increasing rate : 3 ℃ / 100years

*Global warming :0.6 / 100years℃

Studies on Urban Heat Island

Map of measurement spot for temperature and humidity

Studies on Urban Heat Island

20. 020. 0

25. 025. 0

30. 030. 0

35. 035. 0

40. 040. 0

45. 045. 0

50. 050. 0

55. 055. 0

60. 060. 0

RG: 1 : 1 . 0 0 SC: NORM EL : WA

(100.0)

(-20.0)20. 020. 0

25. 025. 0

30. 030. 0

35. 035. 0

40. 040. 0

45. 045. 0

50. 050. 0

55. 055. 0

60. 060. 0

RG: 1 : 1 . 0 0 SC: NORM EL : WA

(100.0)

(-20.0)20. 020. 0

25. 025. 0

30. 030. 0

35. 035. 0

40. 040. 0

45. 045. 0

50. 050. 0

55. 055. 0

60. 060. 0

RG: 1 : 1 . 0 0 SC: NORM EL : WA

(100.0)

(-20.0)

Rooftop greening Surface temperature by Thermograph

Rooftop greening to reduce the heat island phenomena

Analysis of Dioxins and PCBs

High-Resolution Gas chromatographMass Spectrometer

Dioxin Extraction

Effects of wastewater inflow on water quality in Tokyo Bay

COD distribution in Tokyo Bay

Field survey in Tokyo Bay

Research on Wastes and Landfill

The central-breakwater landfill site

Evaluation method of noise, vibration and odour

Measurement of vibration Measurement of odour

Thank you for your kind attention