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Belgium - Walloon Region - Wallonair

UNECE Task Force on Access to Information / EIT Case Study

Brief description

This tool provides public access to information about atmospheric pollutants: 

(i) Measurements of concentrations of atmospheric pollutants  

- matter particles (PM10, PM2.5) and gas molecules (NO2, O3, SO2, CO) : hourly values from streaming real time measurements of about 20 stations 

- heavy metals: As, Cd, Cr, Cu, Ni, Pb, Zn (3 networks of batch analyses) 

- other pollutants: COVs, HAPs, fluorine, acid rain 

(ii) Index of air quality over Wallonia (hourly update) 

(iii) Follow-up to pollution peaks: information and alerts in case of excessive particles or ozone 

(iv) Brief explanation about pollutants and networks of measurements 

(v) Documentation (annual reports, special studies, mobile campaigns)

2. Type:  Governmental 

3. Scope:  Sub-regional  

4. Working language(s):  French , English, German  

5. Target users:  Walloon Region  

6. Starting year:  2020  

7. Budget and funding source: Walloon Region – Walloon Air & Climate Agency ▪ 

8. Contact:  

Mr Stéphane COOLS President , Walloon Air & Climate Agency
email: stephane.cools[at] 
phone number:+32 81 33 59 47 

Mr Laurent SPANU - 
ISSeP - Cellule Qualité de l’Air -

II. Implementation 

9. Policy, legal and institutional context: 

European directives: 

- Directive 2004/107/EC:  

- Directive 2008/50/EC:  

- Amending Directive 2015/1480:  ▪ 

10. Partner organizations involved: - Institut Scientifique de Service Public - ISSeP (Liège, Belgium) 

11. Stakeholders involved, their expected benefits: - 

12. User needs and methods of their assessment: - ▪ 

13. Technology choice:  -

 III. Evaluation 

14. Results:  Public access to the measurement of air quality in Walloon Region 

15. Efficiency gains:  Wide information accessed and manipulated without special knowledge (access through web site)  

16. Risks:  Unavailability of the database server or the web sever  ▪ 

17. Challenges encountered (please indicate resolved or not): 

- Duplication of the database and the web interface on secured data center (done)

- Participate in international exchange of air quality data (to be done) ▪

18. Lessons learned: Collaborate with a computer team to ensure security, reliability, long-term responsiveness 

19. Conditions for successful replication: Availability of workforce, budget, clear communication ▪ 

20. Overall assessment of the tool: The look of the site might become rather outdated but wide information about air quality in Walloon Region is available for the public.  


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