Environmental Engineering Reference
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Fig. 12
The ratio of
FL0
/
PY0
for different sources. Note that PY0 is more prone to biodegradation
than FL0. See Fig.
9
for the symbols and to the text for explanation.
FO
: fuel oil
Coal combustion usually yields values of FL0/PY0 greater than 1 (Gschwend
and Hites
1981
; Sicre et al.
1987
). Creosotes exhibit a narrow range of FL0/PY0
values (Stout et al.
2001a
), which also exceed 1 (Fig.
12
). Similarly, FL0/PY0 > 1
occur for coke oven tars and other pyrogenic materials produced at relatively high
temperatures (Costa et al.
2004
; Saber et al.
2006
).
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