Bergerhoff method

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The Bergerhoff method , also known as the Bergerhoff method , is a measuring method for determining dust precipitation . The devices used are called Bergerhoff devices or Bergerhoff collectors ; in earlier publications the term Landesanstalt-Gerät was also used . In contrast to sampling with a bulk or wet-only collector , the Bergerhoff method only determines the dry residue.

Structure and procedure

Bergerhoff collectors essentially consist of a vertical collecting container made of glass or plastic; The guideline VDI 2119 Part 2 from 1972 provided for a household canning jar according to DIN 5071 as the measuring vessel. The size of the collecting container depends on the amount of precipitation that can be expected in the sampling period. If necessary, the collecting container can be provided with a bird protection. A device for creating a forced flow is not part of the collector.

When setting up, it must be ensured that a free flow of air to the collecting tank is guaranteed. For this purpose, trees and buildings should be far enough away and the opening of the collecting container should be at a height of one to two meters above the ground. Avoid potential contamination of the collecting container with bird droppings or leaves.

During sampling, solid and liquid precipitate collects in the collecting container. After a sampling period of approximately thirty days, the water collected with the dust is evaporated and the remaining residue is determined gravimetrically. A piece of copper wire can be added to the collecting vessel to prevent algae growth .

With reference to the opening area of ​​the collecting vessel, the dust precipitation is given in g / (m 2 · d) or mg / (m 2 · d). The relative detection limit was originally 0.035 g / (m 2 · d), but is now given as 4 mg / (m 2 · d).

Areas of application

As so-called vertical collectors, Bergerhoff collectors are used to collect sedimentation dust. Their design allows the sedimented dust to be analyzed. Bergerhoff collectors can be used to determine arsenic, cadmium, lead and nickel in the sedimentation dust. The contents of polychlorinated dibenzodioxins and dibenzofurans can also be determined.

In the technical instructions for keeping the air clean from 1964, the measurement of the dust precipitation with the Bergerhoff method was prescribed.

The Bergerhoff method was also used in 2010 in the vicinity of the Dortmund harbor in order to determine the cause of the greatly increased PCB pollution.

literature

  • VDI 4320 Part 2: 2012-01 Measurement of atmospheric deposits; Determination of the dust deposition according to the Bergerhoff method (Measurement of atmospheric depositions; Determination of the dust deposition according to the Bergerhoff method). Beuth Verlag, Berlin. ( Summary and table of contents online )

Individual evidence

  1. ↑ VDI 2119 sheet 2: 1996-09 measurement of particulate precipitation; Determination of the dust precipitation with collecting vessels made of glass (Bergerhoff method) or plastic (Measuring of particulate precipitations; Determination of the dust precipitation with collecting pots made of glass (Bergerhoff method) or plastic). Beuth Verlag, Berlin, p. 1.
  2. ^ A b Günter Baumbach: Air pollution control . Springer-Verlag Berlin, Heidelberg, New York, 2nd edition 1992, ISBN 3-540-55078-X , pp. 215-216.
  3. ↑ a b DIN EN 15841: 2010-04 air quality ; Measurement method for the determination of arsenic, cadmium, lead and nickel in atmospheric deposition; German version EN 15841: 2009. Beuth Verlag, Berlin.
  4. ↑ Max Diem: Measurement of Dust Precipitation. In: dust . 20, No. 8, 1960, ISSN  0949-8036 , pp. 279-282.
  5. ↑ VDI 4320 sheet 2: 2012-01 Measurement of atmospheric deposition; Determination of the dust deposition according to the Bergerhoff method (Measurement of atmospheric depositions; Determination of the dust deposition according to the Bergerhoff method). Beuth Verlag, Berlin, p. 2.
  6. ^ Walter Kofler: Experiences with plastic containers for dust precipitation determinations according to Bergerhoff in the alpine region. In: Dust - cleanliness. Air . 36, No. 11, 1976, ISSN  0949-8036 , pp. 446-447.
  7. ↑ Robert Gehrig, Claudia Fäsi, Peter Hofer: Determination of the dust precipitation according to Bergerhoff. Process parameters for measuring dust precipitation and its proportions of lead, cadmium, zinc and thallium. In: Dust - cleanliness. Air. 53, No. 5, 1993, ISSN  0949-8036 , pp. 201-208.
  8. ^ A b Franz Joseph Dreyhaupt (editor): VDI-Lexikon Umwelttechnik. VDI-Verlag Düsseldorf 1994, ISBN 3-18-400891-6 , p. 212.
  9. ↑ VDI 4320 sheet 2: 2012-01 Measurement of atmospheric deposition; Determination of the dust deposition according to the Bergerhoff method (Measurement of atmospheric depositions; Determination of the dust deposition according to the Bergerhoff method). Beuth Verlag, Berlin, p. 14.
  10. ↑ VDI 2090 sheet 1: 2001-01 Measurement of immissions; Determination of the deposition of non-volatile organic substances; Determination of the PCDD / F deposition; Bergerhoff sampling and GC / HRMS analysis (Ambient air measurement; Deposition measurement of low volatile organic compounds - Determination of PCDD / F deposition; Bergerhoff sampling device and GC / HRMS analysis). Beuth Verlag, Berlin, pp. 4-5.
  11. ↑ General administrative regulations on plants requiring approval according to § 16 of the trade regulations (technical instructions for keeping the air clean) of 8 September 1964. In: Joint Ministerialblatt . Edition A, 15, No. 26, 1964, p. 437.
  12. ↑ Peter Bruckmann, Ernst Hiester, Marcel Klees, Ludwig Radermacher: The environmental pollution by polychlorinated biphenyls (PCB) in the Dortmund harbor. In: Hazardous substances - cleanliness. Air . 71, No. 4, 2011, ISSN  0949-8036 , pp. 151-158.