FR2237193A1 - Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer - Google Patents

Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer

Info

Publication number
FR2237193A1
FR2237193A1 FR7324266A FR7324266A FR2237193A1 FR 2237193 A1 FR2237193 A1 FR 2237193A1 FR 7324266 A FR7324266 A FR 7324266A FR 7324266 A FR7324266 A FR 7324266A FR 2237193 A1 FR2237193 A1 FR 2237193A1
Authority
FR
France
Prior art keywords
tracer
pollutant
over
sampling
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR7324266A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BP PLC
Original Assignee
BP PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BP PLC filed Critical BP PLC
Priority to FR7324266A priority Critical patent/FR2237193A1/en
Publication of FR2237193A1 publication Critical patent/FR2237193A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A method of identifying and determining the contribution of a source of atmospheric pollution makes use of the fact that the gases in a smoke stream undergo the same diffusion i.e. the ratio of the concentration of a tracer to that of the pollutant remain constant over the length of the stream emitted from the source. Method consists of taking, over a known period, a sample of air contg. pollutant and a suitable tracer, sepg. by fixing the pollutant and analysing, on the same sample of air, for pollutant and tracer, the pollutant being trapped in one part of the apparatus and the tracer recovered in another part, and determining the degree of pollution of the air coming from the source and by difference the quantity of pollutants coming from other unidentified sources. The tracer can be gaseous, e.g. halogenated compounds, freons, radio-active gases, sulphur hexafluoride, particulate radio-active solid compounds absent from the atmosphere. Separation may be carried out by absorption, adsorption or condensation means. The apparatus is simple, portable and self-contained. The pump, batteries and contactor are all in a box making it possible for use in any atmosphere. It can be used for sampling gases in general, corrosive or not; urban atmospheres, chimney smokes. Hot gas can be cooled before pumping by circulation in a cooled stainless steel tube. The apparatus can be pressurised for use in explosive or corrosive atmosphere. Sampling can be carried out over a sufficiently long period to take account of meteorological conditions. It allows sepn. and selective concn. of any cpd., partic. cpds. reactive at the moment of sampling, and analysis of different pollutants e.g. by putting a trap between the pump and over the absorber.
FR7324266A 1973-07-02 1973-07-02 Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer Pending FR2237193A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7324266A FR2237193A1 (en) 1973-07-02 1973-07-02 Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7324266A FR2237193A1 (en) 1973-07-02 1973-07-02 Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer

Publications (1)

Publication Number Publication Date
FR2237193A1 true FR2237193A1 (en) 1975-02-07

Family

ID=9121919

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7324266A Pending FR2237193A1 (en) 1973-07-02 1973-07-02 Determination of contribution of atmospheric pollution source - by analysing sample of air containing pollutant and a tracer

Country Status (1)

Country Link
FR (1) FR2237193A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067314A2 (en) * 1981-06-15 1982-12-22 Cerberus Ag Method and apparatus to determine the renewal rate of air
FR2820505A1 (en) * 2001-02-06 2002-08-09 Air Liquide METHOD AND DEVICE FOR DETECTING HYDROCARBONS IN GAS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067314A2 (en) * 1981-06-15 1982-12-22 Cerberus Ag Method and apparatus to determine the renewal rate of air
EP0067314A3 (en) * 1981-06-15 1985-10-30 Cerberus Ag Method and apparatus to determine the renewal rate of air
FR2820505A1 (en) * 2001-02-06 2002-08-09 Air Liquide METHOD AND DEVICE FOR DETECTING HYDROCARBONS IN GAS
EP1236999A1 (en) * 2001-02-06 2002-09-04 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Method and apparatus for hydrocarbon detection in a gas
US7223607B2 (en) 2001-02-06 2007-05-29 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and device for the detection of hydrocarbons in a gas

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