RC - What is RC? - Rotterdam Convention

Table 5 (contd).
Type of soil Year Location
Levels determined a Reference
or sediment
(µg/kg)
Sediment, lake Canada, Lake Ontario
0.1-75 (r, n=3) Oliver (1984)
Sediment, USA, Eagle Harbour, creosote
< 0.79 (m, n=15, dwt) Malins et al. (1985)
sea harbour contaminated sediment, 3 sites
Sediment, USA, President Point, 1
< 2.0 (n=1, dwt)
sea harbour reference site
Sediment USA, Calcasieu River estuary,
85 (bottom) Pereira et al. (1988)
estuarine vicinity of industrial outfall
1.7 (suspended)
a dwt = dry weight; nd = not detectable; r = range of individual
values; r,m = range of mean values; m = mean; mo = months after
treatment;
n = number of samples
b The highest levels were associated with the production of
tetrachloroethene and trichloroethene. Waste holding areas (especially
when
involving open storage) were often the most significant sources
of hexachlorobutadiene, contaminated soil being a secondary source.
c surficial sediment; the sediment concentration increased with
fraction size
d surficial sediment
Table 6. Concentrations of hexachlorobutadiene in aquatic
organisms, birds and mammals
Type of biota Year Location
Levels determined a Reference
(µg/kg wwt)
Detritus (bottom) 1972-1976 Netherlands, surface
water 200 Goldbach et al. (1976)
Detritus (floating)
220