TY - JOUR

T1 - The trace metal dissolution kinetics of three rural atmospheric aerosols in a range of natural fresh water types.

AU - Hamilton-Taylor, J.

AU - Yang, Y-L.

AU - Arewgoda, C. M.

AU - Hewitt, CN

AU - Davison, W.

PY - 1993/2

Y1 - 1993/2

N2 - The dissolution kinetics of Pb, Zn and Cu from three rural atmospheric aerosols were studied in a range of natural fresh waters and a synthetic analogue, employing two different experimental systems and analytical techniques (AAS and ASV). The experiments showed that high proportions (27–87% by mass) of the metal contents were rapidly (minutes) released into true solution (i.e. ASV labile), and that after 30 min there was little or no further dissolution, even after 1 week. The extent of Zn (74 ± 8%) dissolution was invariably greater than that of Pb (41 ± 15%) and Cu (47 ± 11%), and dissolution of Pb and Zn increased with decreasing pH. There was no evidence for any increased dissolution associated with dissolved organics.

AB - The dissolution kinetics of Pb, Zn and Cu from three rural atmospheric aerosols were studied in a range of natural fresh waters and a synthetic analogue, employing two different experimental systems and analytical techniques (AAS and ASV). The experiments showed that high proportions (27–87% by mass) of the metal contents were rapidly (minutes) released into true solution (i.e. ASV labile), and that after 30 min there was little or no further dissolution, even after 1 week. The extent of Zn (74 ± 8%) dissolution was invariably greater than that of Pb (41 ± 15%) and Cu (47 ± 11%), and dissolution of Pb and Zn increased with decreasing pH. There was no evidence for any increased dissolution associated with dissolved organics.

KW - trace metals

KW - atmospheric aerosols

KW - dissolution

KW - kinetics

KW - surface waters

U2 - 10.1016/0043-1354(93)90082-S

DO - 10.1016/0043-1354(93)90082-S

M3 - Journal article

VL - 27

SP - 243

EP - 254

JO - Water Research

JF - Water Research

IS - 2

ER -