Leonard A. Barrie

TL;DR: Air concentrations of organochlorine pesticides (OCPs) were measured on a weekly basis in 2000-2003 at six Arctic stations, which include Alert, Kinngait, and Little Fox Lake in Canada; Point Barrow in the USA; Valkarkai in Russia; and Zeppelin in Norway.

TL;DR: In this article, it was found that the observed rate of ozone destruction would require levels of HO and Cl atoms much higher than would be expected for the prevailing conditions but reasonable concentrations of Br atoms, and an effective ozone deposition velocity of 0.1-0.2 cm s−1 could account for the observed depletion rate during this period.

TL;DR: In the Narwhal ice floe camp in the Lincoln Sea at 84°N latitude from April 10 to 24, 1994, during the period April 13 to 18, O3 was below the detection limit of the measurement (i.e., <1 ppb), and the average HCHO, CH3CHO, and CH3C(O)CH3 concentrations were 193, 93, and 1730 ppt, respectively as discussed by the authors.

TL;DR: In the Polar Sunrise Experiment (PSE) as mentioned in this paper, measurements of halogen species thought to be involved in ground level Arctic ozone depletion were made at Alert, NWT, Canada during the months of March and April, 1997.

TL;DR: For example, during the Polar Sunrise Experiment 1992 at Alert in the Canadian high Arctic, size-fractionated observations of aerosol constituents (halogens, Na, V, As, Sb, Zn, Al, Ca, SO4=, Sm, K, Mn, and Mg) were made using a low-pressure cascade impactor and a high volume virtual impactor (HVVI) as discussed by the authors.