Table 2: Leachability limits and screening concentrations
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| CAS no.1 |
Class B landfills |
||
|---|---|---|---|
| Screening criteria2 (mg/kg) |
Concentration in leachate (mg/L) |
||
|
Inorganic contaminants |
|||
|
Aluminium |
7429-90-5 |
80 |
4 |
|
Antimony |
7440-36-0 |
1.2 |
0.06 |
|
Arsenic |
7440-38-2 |
10 |
0.5 |
|
Barium |
7440-39-3 |
200 |
10 |
|
Beryllium |
7440-41-7 |
20 |
1 |
|
Boron |
7440-42-8 |
40 |
2 |
|
Cadmium |
7440-43-9 |
2 |
0.1 |
|
Chromium (VI) |
18540-29-9 |
10 |
0.5 |
|
Copper |
7440-50-8 |
10 |
0.5 |
|
Fluoride |
16984-48-8 |
400 |
20 |
|
Lead |
7439-92-1 |
10 |
0.5 |
|
Lithium |
7439-93-2 |
40 |
2 |
|
Mercury |
7439-97-6 |
0.4 |
0.02 |
|
Molybdenum |
7439-98-7 |
20 |
1 |
|
Nickel |
7440-02-0 |
20 |
1 |
|
Selenium |
7782-49-2 |
20 |
0.11 |
|
Silver |
7440-22-4 |
20 |
0.5 |
|
Tin |
7440-31-5 |
2,000 |
100 |
|
Vanadium |
7440-62-2 |
4 |
0.2 |
|
Zinc |
7440-66-6 |
20 |
1 |
|
Aromatic hydrocarbons |
|||
|
Aniline |
62-53-3 |
0.4 |
0.02 |
|
Styrene |
100-42-5 |
12 |
0.6 |
|
Polynuclear aromatic hydrocarbons |
|||
|
Naphthalene |
91-20-3 |
20 |
1 |
|
Other halogenated aromatic hydrocarbons |
|||
|
1,2 Dichlorobenzene |
95-50-1 |
0.4 |
0.02 |
|
1,3 Dichlorobenzene |
541-73-1 |
100 |
5 |
|
1,2,3 Trichlorobenzene |
87-61-6 |
100 |
5 |
|
1,2,4 Trichlorobenzene |
120-82-1 |
80 |
4 |
|
BTEX |
|||
|
Benzene |
71-43-2 |
1 |
0.05 |
|
Toluene |
108-88-3 |
200 |
10 |
|
Ethyl benzene |
100-41-4 |
100 |
5 |
|
Xylene (m,o,p) |
1330-20-7 |
200 |
10 |
|
Chlorinated aliphatic hydrocarbons |
|||
|
Vinyl chloride |
75-01-4 |
0.4 |
0.02 |
|
1,2 Dichloroethene |
540-59-0 |
20 |
1 |
|
1,3 Dichloropropene |
542-75-6 |
4 |
0.2 |
|
Dichloromethane |
75-09-2 |
4 |
0.2 |
|
1,1,1, Trichloroethane |
71-55-6 |
400 |
20 |
|
1,1,2 Trichloroethane |
79-00-5 |
1,000 |
50 |
|
1,1,2,2 Tetrachloroethane |
79-34-5 |
100 |
5 |
|
1,2 Dibromo-3-chloropropane |
96-12-8 |
0.4 |
0.02 |
|
1,2 Dichloropropane |
78-87-5 |
2 |
0.1 |
|
Other halogenated aliphatic hydrocarbons |
|||
|
Bromodichloromethane |
75-27-4 |
0.2 |
0.01 |
|
Bromoform |
75-25-2 |
20 |
1 |
|
Dibromochloromethane |
124-48-1 |
20 |
1 |
|
Phenols |
|||
|
2,4,6 Trichlorophenol |
88-06-2 |
0.2 |
0.01 |
|
2 Chlorophenol |
95-57-8 |
0.01 |
0.005 |
|
2,4 Dichlorophenol |
120-83-2 |
0.01 |
0.005 |
|
Phenol |
108-95-2 |
80 |
4 |
|
Pesticides |
|||
|
2,4 Dichlorophenoxyacetic acid (2,4 D) |
94-75-7 |
20 |
1 |
|
Aldrin |
309-00-2 |
0.000016 |
0.000008 |
|
Dieldrin |
60-57-1 |
0.8 |
0.04 |
|
Endosulfan |
115-29-7 |
0.6 |
0.03 |
|
Phthalates |
|||
|
Diethylphthalate |
84-66-2 |
200 |
10 |
|
Dimethylphthalate |
131-11-3 |
800 |
40 |
|
Di-n-butylphthlate |
84-74-2 |
600 |
30 |
|
Other organics |
|||
|
Carbon disulphide |
75-15-0 |
6 |
0.3 |
|
Organometallics |
|||
|
Tributyltin oxide (TBTO) |
56-35-9 |
6 |
0.3 |
1. Chemical Abstracts Service Registry Number - a unique identifier that tells you, for example, that acetone and dimethyl ketone are the same substance.
2. Screening criterion = 20 x TCLP criteria; where contaminant concentration is below the screening criteria, no TCLP test is necessary.
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