Chemistry Reference
In-Depth Information
Table A5.1
Selected classification factors
a
for the LCA impact categories
Global
warming
Ozone
Photochemical
Resource
potential for
depletion
Acidification
Eutrophication
smog
depletion
100 years
potential
potential
potential
POCP
Aquatic
(world
(equiv. to
(equiv. to
(equiv. to
(equiv. to
(equiv.
Human
toxicity
PO
3
-
Burdens
reserves)
CO
2
)
CFC-11)
SO
2
)
to ethylene)
toxicity
(m
3
mg
-
1
)
Coal reserves
8.72E
+
13
t
Oil reserves
1.24E
+
11 t
Gas reserves
1.09E
+
14 m
3
CO
0.012
CO
2
1
NO
x
0.7
0.13
0.78
SO
2
1.0
1.2
HC excl CH
4
0.416
1.7
CH
4
11
0.007
Aldehydes
0.443
Chlorinated HC
400
0.5
0.98
CFCs
5000
0.4
0.022
Other VOC
11
0.005
0.007
As
4700
Hg
120
F
2
0.48
HCl
0.88
HF
1.6
0.48
NH
3
1.88
0.02
1.81
¥
10
8
As
1.4
9.07
¥
10
8
Cr
0.57
1.81
¥
10
9
Cu
0.02
Fe
0.0036
4.54
¥
10
11
Hg
4.7
2.99
¥
10
8
Ni
0.057
1.81
¥
10
9
Pb
0.79
Zn
0.0029
3.45
¥
10
8
Fluorides
0.041
Nitrates
0.42
0.00078
Phosphates
1.0
0.00004
Oils, greases
4.54
¥
10
7
Ammonia
0.33
0.0017
Chlor. solv./comp
0.29
5.44
¥
10
7
Cyanides
0.057
Pesticides
0.14
1.18
¥
10
9
Phenols
0.048
5.35
¥
10
9
COD
0.022
a
All classification factors are expressed in kg kg
-
1
, unless stated otherwise. HC, hydrocarbons.
to the POCP classification factors of ethylene and is
calculated as:
where
B
j
are the emissions of different contributory
species, primarily VOCs, classified into the categories
of: alkanes, halogenated hydrocarbons, alcohols,
ketones, esters, ethers, olefins, acetylenes, aromatics
and aldehydes; and
ec
6,
j
J
Â
E
=
ec
B
()
kg
(A1.6)
6
6
,
j
j
are their respective
j
=
1
