Air and Precipitation Chemistry Network (PMK)

Updated 2012-07-18

The PMK Network is part of the national network for deposition measurements. The aim is a longterm monitoring concentration and deposition of different air transported compounds. The aim is also to generate knowledge about longterm variation in the deposition field, and to give background data from low polluted areas for calculation of pollution deposition in more polluted areas. The Air and Precipitation Chemistry Network includes about 25 sites (14 in northern Sweden) where precipitation from open accumulating samplers are collected and analyzed for pH, SO4, NO3, NH4, Cl, Ca, Mg, Na, K, conductivity, and amount of precipitation (Table 4, #1.2). At 3 sites (one in northern Sweden) precipitation is analyzed for heavy metals, mercury, and methyl-mercury (Table 4, #1.3).

Time frame

Project time span
1977 -
Data collection
1977 -
Data processing
1977 -
Data reporting
1977 -

Contact information

Contact person
- -
Annika Svensson

Parameters and Media

Parameter groups measured/observed/modelled
Media sampled/studied/modelled


Regions studied

Data availability

Samples/specimens archived in specimen banks?

Methods & Procedures

Procedures and methodology used for, e.g., sampling and sample storage, sample pretreatment, extraction and analysis, including which laboratories are involved, references to methods employed, etc.

pH, SO4, NO3, NH4, Cl, Ca, Mg, Na, K, conductivity, and amount of precipitation

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Other institutes involved in the project

Swedish Environmental Research Institute (IVL), Swedish Environmental Protection Agency (SEPA)

Is this project reporting to other organizations/programmes?

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