Rationale for list of regulated substances under Canadian Environmental Protection Act: exhibit 5
Exhibit 5: Threshold Calculation for Toxic Substances in CRAIM List Originating from MIACC Lists
Chemical | ||||||
---|---|---|---|---|---|---|
1,2-Dichloroethane | 2- Chloroethanol | Allyl chloride | Carbon monoxide | Chloropicrin | ||
Physical state | L | L | L | G | L | |
Basis for CRAIM Threshold | Expert judgement | Expert judgement | Expert judgement | Expert judgement | Expert judgement | |
Level of Concern - Toxicity | IDLH 1990 (gm/m3) | 0.033 | 0.939 | 1.725 | 0.027 | |
IDLH 1994 (gm/m3) | ||||||
IDLH 1997 (gm/m3) | ||||||
ERPG-2 1991 (gm/m3) | ||||||
ERPG-2 2002 (gm/m3) | 0.810 | |||||
LC50 / 10 (gm/m3) | ||||||
LCLO / 10 (gm/m3) | ||||||
Mol wt | 99.0 | 80.5 | 76.5 | 28.0 | 164.4 | |
Boiling T (°C) | 83 | 128.7 | 45 | -191.7 | 112 | |
V | 0.098 | 0.076 | 0.092 | 1.000 | 0.125 | |
IDLH Index | 8.294 | 0.436 | 10.208 | 1.725 | 0.240 | |
CRAIM TQ, Tonnes (lbs) | 50 (110,000) | 1.0 (2,200) | 1.0 (2,200) | 4.5 (10,000) | 0.7 (1,540) | |
New TQ, Tonnes (lbs) | 6.8 (15,000) | 4.5 (10,000) | 9.10 (20,000) | 6.8 (15,000) | 2.27 (5,000) | |
Comment | Decrease TQ to 6,8 t (15,000 lbs) based on ERPG-2 (2002) | Raise TQ to 4.5 t (10,000 lbs) based on IDLH (1990) | Raise TQ to 9.1 t (20,000 lbs) based on IDLH (1990) | Raise TQ to 6.8 t (15,000 lbs) based on IDLH (1990) | Raise TQ to 2.27 t (5,000 lbs) based on IDLH (1990) | |
Physical States :
|
Chemical | ||||||
---|---|---|---|---|---|---|
Chlorosulfonic acid | Cyanogen bromide | Hydrobromic acid | Ketene | Mercury | ||
Physical state | L | L | G | G | L | |
Basis for CRAIM Threshold | Expert judgement | Expert judgement | Expert judgement | Expert judgement | Expert judgement | |
Level of Concern - Toxicity | IDLH 1990 (gm/m3) | 0.028 | ||||
IDLH 1994 (gm/m3) | 0.0993 | 0.0094 | ||||
IDLH 1997 (gm/m3) | ||||||
ERPG-2 1991 (gm/m3) | 0.0111 | |||||
ERPG-2 2002 (gm/m3) | ||||||
LC50 / 10 (gm/m3) | ||||||
LCLO / 10 (gm/m3) | 0.03982 | |||||
Mol wt | 116.5 | 105.9 | 80.9 | 42 | 200.6 | |
Boiling T (°C) | 152 | 62 | -66.7 | -56.1 | 356.7 | |
V | 0.091 | 0.109 | 1.000 | 1.000 | 0.089 | |
IDLH Index | 0.121 | 0.366 | 0.099 | 0.009 | 0.316 | |
CRAIM TQ, Tonnes (lbs) | 1.0 (2,200) | 1.0 (2,200) | 2.27 (5,000) | 0.05 (110) | 1.0 (2,200) | |
New TQ, Tonnes (lbs) | 2.27 (5,000) | 4.5 (10,000) | 1.13 (2,500) | 0.22 (500) | 4.5 (10,000) | |
Comment | Raise TQ to 2.27 t (5,000 lbs) based on ERPG-2 (1991) | Raise TQ to 4.5 t (10,000 lbs) based on chemical repository 13 LCLO (92 ppm) divided by 10 | Decrease TQ to 1.13 t (2,500 lbs) based on IDLH (1994) | Raise TQ to 0.22 t (500 lbs) based on IDLH (1994) | Raise TQ to 4.5 t (10,000 lbs) based on IDLH (1990) | |
Notes:
Physical States :
|
Chemical | ||||||
---|---|---|---|---|---|---|
Methacrolein (Metha-crylaldehyde) | Methacryloyloxyethyl isocyanate | Methyl bromide | Methyl iodide | Methyl vinyl ketone | ||
Physical state | L | L | G | L | L | |
Basis for CRAIM Threshold | Expert judgement | Expert judgement | Expert judgement | Expert judgement | Expert judgement | |
Level of Concern - Toxicity | IDLH 1990 (gm/m3) | N.A | N.A | 7.780 | 4.640 | N.A. |
IDLH 1994 (gm/m3) | ||||||
IDLH 1997 (gm/m3) | ||||||
ERPG-2 1991 (gm/m3) | ||||||
ERPG-2 2002 (gm/m3) | ||||||
LC50 / 10 (gm/m3) | ||||||
LCLO / 10 (gm/m3) | ||||||
Mol wt | 70.1 | 155.2 | 95.0 | 141.9 | 70.1 | |
Boiling T (°C) | 68 | 211 | 3.33 | 42.8 | 80 | |
V | 0.081 | 0.095 | 1.000 | 0.140 | 0.077 | |
IDLH Index | N.A. | N.A. | 7.780 | 33.112 | N.A. | |
CRAIM TQ, Tonnes (lbs) | N.A. | N.A. | 1.14 | 3.4 (7,500) | N.A. | |
New TQ, Tonnes (lbs) | N.A. | N.A. | 6.8 (15,000) | 9.10 (20,000) | N.A. | |
Comment | Removed based on CRAIM Board decision; Essentially not in Canadian Commerce |
Removed based on CRAIM Board decision; Essentially not in Canadian Commerce |
Raise TQ to 6.8 t (15,000 lbs) based on IDLH90 | Raise TQ to 4.5 t (10,000 lbs) based on IDLH90 | Removed based on CRAIM Board decision; Essentially not in Canadian Commerce |
|
Physical States :
|
Chemical | ||||||
---|---|---|---|---|---|---|
Nitrogen dioxide | Osmium tetroxides | Phenol | Stibine | Tetraethyl lead | ||
Physical state | G | S | L | G | L | |
Basis for CRAIM Threshold | Expert judgement | Expert judgement | Expert judgement | Expert judgement | Expert judgement | |
Level of Concern - Toxicity | IDLH 1990 (gm/m3) | 0.094 | 0.001 | 0.963 | 0.204 | 0.040 |
IDLH 1994 (gm/m3) | ||||||
IDLH 1997 (gm/m3) | ||||||
ERPG-2 1991 (gm/m3) | ||||||
ERPG-2 2002 (gm/m3) | ||||||
LC50 / 10 (gm/m3) | ||||||
LCLO / 10 (gm/m3) | ||||||
Mol wt | 46 | 254.2 | 94.1 | 124.8 | 323.4 | |
Boiling T (°C) | 21.1 | 130 | 181.7 | -18.3 | 108.9 | |
V | 1.000 | 1.000 | 0.074 | 1.000 | 0.197 | |
IDLH Index | 0.094 | 0.001 | 13.023 | 0.204 | 0.226 | |
CRAIM TQ, Tonnes (lbs) | 0.1 (220) | 0.05 (110) | 4.5 (10,000) | 0.22 (500) | 1.0 (2,200) | |
New TQ, Tonnes (lbs) | 1.13 (2,500) | 0.22 (500) | 9.10 (20,000) | 2.27 (5,000) | 2.27 (5,000) | |
Comment | Raise TQ to 1.13 t (2,500 lbs) based on IDLH (1990) | Raise TQ to 0.22 t (500 lbs) based on IDLH (1990) | Raise TQ to 9.1 t (20,000 lbs) based on IDLH (1990) | Raise TQ to 2.27 t (5,000 lbs) based on IDLH (1990) | Raise TQ to 2.27 t (5,000 lbs) based on IDLH (1990) | |
Physical States :
|
Chemical | |||
---|---|---|---|
Thionyl chloride | Trioxychlorofluoride | ||
Physical state | L | G | |
Basis for CRAIM Threshold | Expert judgement | Expert judgement | |
Level of Concern - Toxicity | IDLH 1990 (gm/m3) | ||
IDLH 1994 (gm/m3) | |||
IDLH 1997 (gm/m3) | 0.4196 | ||
ERPG-2 1991 (gm/m3) | |||
ERPG-2 2002 (gm/m3) | |||
LC50 / 10 (gm/m3) | 0.2445 | ||
LCLO / 10 (gm/m3) | |||
Mol wt | 119.0 | 102.5 | |
Boiling T (°C) | 76.1 | -46.7 | |
V | 0.113 | 1.000 | |
IDLH Index | 2.161 | 0.419 | |
CRAIM TQ, Tonnes (lbs) | 0.1 (220) | 2.2 (5,000) | |
New TQ, Tonnes (lbs) | 6.8 (15,000) | 6.8 (15,000) | |
Comment | Raise TQ to 6.8 t (15,000 lbs) based on RETC LC50 1 hour (500 ppm) divided by 10 | Raise TQ to 6.8 t (15,000 lbs) based on IDLH (1990) | |
Notes: Physical States :
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