Concentrations of heavy metals per measuring station, 1990-2002

Measurements of heavy metals in air

In the Netherlands, metal concentrations in air are measured at four locations in the National Air Quality Measurement Network: Houtakker (North Brabant), Vlaardingen (South Holland), Bilthoven (Utrecht) and Kollumerwaard (Groningen).

Differences within the Netherlands

As a rule, the concentrations of heavy metals in air decline as one moves from the South to the North of the Netherlands. The differences in the concentrations between the North and the South are getting smaller. This is most apparent in the case of lead.

References

• RIVM (2003). Data based on measurements from the National Air Quality Measurement Network, processed by the Netherlands Environmental Assessment Agency. RIVM, Bilthoven.