Japan Country Presentation - Clean Air Initiative

6, February, 2013
Hitoshi Yoshizaki
Deputy Director,
Air Environment Division,
Environment Management Bureau,
Ministry of the Environment, Japan

Current Status of AQM
While air quality is largely at good condition in terms of SOx, NOx and
SPM, the remaining challenges include low attainment rate of air
quality standards for photochemical oxidant (Ox) and PM2.5.
Situation of Ozone
- Increasing Trends in Annual Average
Oxidant Levels
- Attainment Rate of Air Quality Standards
(0.06 ppm per hour) was 0.0% in JFY2010.
Situation of PM2.5
- The first valid monitoring since the
establishment of AQS for PM2.5 (35 ug/m 3
per hour, 15 ug/m 3 per year), showed approx.
30% of AQS attainment rate (and less
than 10% at roadsides).
Remained Below AQS (11 stations)
Exceeded AQS (18 stations + 5
stations (due to dust and
sandstorms))

Main Tasks for 2013/2014
• Photochemical Oxidant and PM2.5
• Further Studies for Photochemical Oxidant
• Enhanced Monitoring and Data Analysis, Emission Inventory, and
Simulation Model Improvements
• Deployment of PM 2.5 Monitoring Network and Composition
Analysis of PM 2.5
• Transboundary Air Pollution
• Nation-wide Monitoring of TAP and Dust & Sandstorms
• International Cooperation on TAP and DSS through EANET and
other frameworks
• Short-Lived Climate Pollutants
• Estimation of Emissions of Black Carbon and Survey on its
Mitigation Measures
• Studies on Impacts of different Ozone Precursors on Ozone
Formation and Climate Change

Other Ministries to Collaborate
The Ministry of the Environment Japan (MOEJ) is the
main authority in charge of national environmental
policy.
Potential Collaboration with Other Ministries/Departments
• Photochemical Oxidant and PM2.5
• No collaboration needed at this time.
• Transboundary Air Pollution
• For DSS monitoring, coordination needed with Meteorological
Agency.
• For international cooperation on TAP, the policy of Ministry of
Foreign Affairs should be taken into account.
• Short-Lived Climate Pollutants
• Close collaboration needed with the departments in charge of
climate change within the same ministry.

Thank you for your attention.
Any question is welcomed.