Cycling of DDT in the global environment 1950 to 2002: World ocean returns the pollutant

STEMMLER, Irene and Gerhard LAMMEL. Cycling of DDT in the global environment 1950 to 2002: World ocean returns the pollutant. Geophysical Research Letters. Washington, D. C., USA: American Geophysical Union, 2009, vol. 36, L24602, p. 10.1029/2009GL041340, 5 pp. ISSN 0094-8276.

Basic information

• Original name: Cycling of DDT in the global environment 1950 to 2002: World ocean returns the pollutant
• Name in Czech: Cycling of DDT in the global environment 1950 to 2002: World ocean returns the pollutant
• Authors: STEMMLER, Irene (276 Germany) and Gerhard LAMMEL (276 Germany, guarantor).
• Edition: Geophysical Research Letters, Washington, D. C., USA, American Geophysical Union, 2009, 0094-8276.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10511 Environmental sciences
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: .pdf
• Impact factor: Impact factor: 3.204
• RIV identification code: RIV/00216224:14310/09:00039044
• Organization unit: Faculty of Science
• UT WoS: 000273254900003
• Keywords (in Czech): DDT; model; ocean pollution
• Keywords in English: DDT; model; ocean pollution

Abstract

The global distribution and fate of the insecticide DDT was modeled for the first time using a spatially resolved global multicompartment chemistry transport model comprising a 3D coupled atmosphere and ocean GCM, coupled to 2D vegetation surfaces and top soils. The global ocean absorbed until 1977 and since then has been losing DDT, while large sea areas are still accumulating the pollutant. The main sink is volatilization to the atmosphere. In 1990, the year when emissions ceased, 292 kt of DDT were deposited to the global ocean, 301 kt were volatilized, and 41 kt were exported from the surface layer to the deeper levels. The sea region that has been representing the most significant (secondary) DDT source is the western N Atlantic (Gulf stream and N Atlantic Drift regions). It has been a source since approximately 1970.

Abstract (in Czech)

The global distribution and fate of the insecticide DDT was modeled for the first time using a spatially resolved global multicompartment chemistry transport model comprising a 3D coupled atmosphere and ocean GCM, coupled to 2D vegetation surfaces and top soils. The global ocean absorbed until 1977 and since then has been losing DDT, while large sea areas are still accumulating the pollutant. The main sink is volatilization to the atmosphere. In 1990, the year when emissions ceased, 292 kt of DDT were deposited to the global ocean, 301 kt were volatilized, and 41 kt were exported from the surface layer to the deeper levels. The sea region that has been representing the most significant (secondary) DDT source is the western N Atlantic (Gulf stream and N Atlantic Drift regions). It has been a source since approximately 1970.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)