About us

The GSA Gesellschaft für Schadstoffanalytik mbH was founded in 2005. Its current managing directors are former employees of the Gesellschaft für Staubmesstechnik und Auftragsanalytik GmbH in Neuss.

We are experts due to decades of experience with pollutants. Our qualified and individualised range of services is primarily aimed at companies in the field of occupational safety and emission protection. Our customers include architects, estate agents, representatives of the real estate management, owners and tenants.


years of experience


international certificates


DAX customers

Our certificates

Certificates of the Gesellschaft für Schadstoffanalytik mbH (testing laboratory)

Sicherheits Certifikat Contraktoren
TÜV Rheinland
Forum Asbest Schweiz

Trusted by:

>50% DAX companies

Known from:

Our accreditation

We carry out our activities in a professional and competent manner at an internationally comparable level.

Round robin tests — element of quality assurance

Taking part in round robin tests is a crucial element of quality assurance.

Our accreditation with the DAkkS ensures that our testing and analysis procedures are carried out according to the highest possible quality and safety standards.

GSA is a regular participant of the following interlaboratory tests, conducted by HSL (Health and Safety Laboratory) and IOM (Institute of Occupational Medicine)

  • AFRICA (Asbestos Fibre Regular Informal Counting Arrangement) von IOM in Edinburgh
  • AIMS (Asbestos in Materials Scheme) von HSL in Buxton
  • SEMS (Scanning Electron Microscopy Fibre Counting Scheme) von HSL in Buxton

Our range of services

GSA Schadstoffanalytik offers you sampling, dust analyses, fibre analyses or assessments of other pollutants such as cooling lubricants or formaldehyde.

We test for hazardous substances at the workplace, indoors or outdoors and provide you with comprehensive advice on your pollution problem.

  • Determination of dust constituents

    Determination of benzopyrens , amorphous silica, crystalline silica, talcum and chromium (VI).

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  • Dusts: sampling and analysis

    Gravimetric determination of the respirable dust fraction, alveolar dust fraction, wood dust, diesel engine.

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  • Fibers, asbestos — sampling, analysis

    Measurement of inorganic fibrous particles, determination of alveolar asbestos fibres and other inorganic fibres, determination of alveolar fibres, organic fibres…

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  • Organic components — sampling, analysis

    Determination and measurement of organic components.

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