1 / 23

The air quality monitoring and management system for HCMC, Vietnam

The air quality monitoring and management system for HCMC, Vietnam. Bjarne Sivertsen 1), The Nguyen Thanh 1), Le Van Khoa 2), Vo Thanh Dam. 1) NILU (Norwegian Institute for Air Research) 2) DONRE/HCMC EPA. Ho Chi Minh City Environmental Improvement Project

bazyli
Download Presentation

The air quality monitoring and management system for HCMC, Vietnam

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The air quality monitoring and management system for HCMC, Vietnam Bjarne Sivertsen 1), The Nguyen Thanh 1), Le Van Khoa 2), Vo Thanh Dam 1) NILU (Norwegian Institute for Air Research) 2) DONRE/HCMC EPA Ho Chi Minh City Environmental Improvement Project Air Quality Monitoring Component

  2. AQ Monitoring Sites 4 sites funded by Danida 5 sites funded by NORAD AQMS installed by NILU As part of NORAD

  3. Types of Monitoring Stations • Regional background areas • 3 km < x < 50 km from buildup areas • Urban background • In cities • Away from local sources(streets, industries etc.) • Residential areas • Traffic stations • Curbside, along streets • Industrial stations

  4. Dust a major problem Roadside measurements 1995-2001

  5. TSP reduced Change in roads and traffic pattern

  6. Also ambient lead level reduced Short term sampling on the street HX and DBP 3 hourly samples 10 days a month PhuLam: 12 h sample 10 days a month

  7. PM10 measured since 2001

  8. PM10 from gravimetric analyses Average PB (2003) 0.19 µg/m3

  9. BC D2 ZO TN PM10 exceeding international limit values 24 hour average PM10

  10. Ozone A few exceedings of hourly limit values ! Vietnam limit value

  11. % 8 hour average Ozone exceeded

  12. Ozone 27 October 2004

  13. Seasonal variation in ozone

  14. NO2 annual average WHO guideline

  15. Short term sampling on the street HX and DBP 3 hourly samples 10 days a month PhuLam: 12 h sample 10 days a month Concentration decrease with distance from street

  16. SO2 Annual average

  17. Average diurnal variation CO

  18. HCMC Air Quality Index

  19. T=1.4xU

  20. Air quality management and planning

  21. Ho Chi Minh City Emission inventory, traffic

  22. Model applications Wind fields Model tests HCMC Vietnam Main traffic routes impact

  23. Summary • Main problem; suspended particles • High ozone on dry hot days • NO2 exceeding limit values on few days • Very high exposure in streets and roads • AQI seldom at unhealthy level ( limit !) • Future application for planning • Abatement planning and action plan • Air Quality and Health impact Thank you !

More Related