Donald Mackay (chemist)

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Donald Mackay , OC , O.Ont (born October 30, 1936 in Glasgow ) is a Canadian chemist .

Life

Since his dissertation, he has devoted himself to the fate of chemicals in the environment. In 2003 he was awarded the Order of Canada and in 2005 the Order of Ontario . He taught and researched at the University of Toronto and later at Trent University . He has now retired.

Services

The well-known Mackay fugacity model is named after him. It represents the world as a large box in which there are several compartments: soil, sediment, water, air, biota . The distribution of a substance takes place according to the distribution laws of thermodynamics. Depending on the degree of complexity, the Mackay models are named with the Roman numerals I to IV:

Level I : Distribution according to thermodynamics, equilibrium constants K OW ( octanol-water distribution coefficient ), K Henry ( Henry constant ), K sorption ( sorption constant )

Level II : additional consideration of global immissions (e.g. from factories) and degradation rates (e.g. biological or photolytic)

Level III : additional consideration of compartment-specific immissions and the possibly retarded mass transport between the compartments

Level IV : additional consideration of the time dependency of the immissions (e.g. periodic fluctuating function)

Works

  • Multimedia environmental models. The fugacity approach, Lewis Publ., Chelsea, Mich. 1991
  • Illustrated handbook of physical-chemical properties and environmental fate for organic chemicals, Lewis, Boca Raton, Fla. [u. a.] 1992–97 (5 volumes)

Web links