Levels of polychlorinated biphenyls in the lower troposphere of the North- and South-Atlantic Ocean

作者: J�rn Schreitm�ller , Karlheinz Ballschmiter

DOI: 10.1007/BF00325365

关键词: Research vesselSurface waterEnvironmental scienceBiphenylPolychlorinated biphenylTroposphereEnvironmental chemistryPollutionLatitudeTrade wind

摘要: Fourteen polychlorinated biphenyl (PCB) congeners were quantified in air samples of the tropospheric boundary layer Atlantic Ocean. The taken on German research vessel “Polarstern” during north-south cruises across Ocean (1990, 1991), and Capo Verde islands North (1992). Values for sum PCB between 48 pg/m3 (values seven indicator [in pg/m3]: 28: 1.3; 52: 5.0; 101: 3.0; 118: ≤0.5; 138: 1; 153: 180: <0.2) Westwind Belt eastern 22 2.3; 3.4; <0.2; central South Atlantic. Up to 385 2.6; 11.7; 28.4; 9; 21; 18; 5.5) measured coast Patagonia. A difference depending latitude terrestrial influenced masses lower higher chlorinated was observed. levels three- tetrachlorinated highest Trade Wind regions. contents had maxima by continental masses. correlation over with surface water temperature thus dependent gas/water partition coefficient Kgw

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