249
A Program to Reduce Toxic Chemical Use
TABLE 16.1 (continued)

Proposed Chemical Usage Concentration Reporting Thresholds for
TRI Chemicals
Chemical
ETF (Doses/
Capita-lb)
Reporting
Threshold
Iron pentacarbonyl
—
1%
Isobutyraldehyde
—
1%
Isodrin
—
1%
Isofenphos
—
1%
Isopropyl alcohol
8.77E–11
1%
Isosafrole
—
1%
Lactofen
6.10E–09
1%
Lead and lead compounds
2.60E–04
100 ppm
Linuron
2.91E–08
1%
Lithium carbonate
8.94E–09
1%
Malathion
5.42E–10
1%
Maleic anhydride
1.51E–07
1%
Malononitrile
2.00E–06
1%
Maneb
2.32E–08
1%
Manganese and manganese compounds
1.15E–05
0.10%
M-Cresol
1.97E–09
1%
M-Dinitrobenzene
4.81E–07
1%
Mecoprop
1.12E–07
1%
Mercury and mercury compounds
2.55E–03
10 ppm
Merphos
5.52E–07
1%
Methacrylonitrile
2.14E–06
1%
Metham sodium
—
1%
Methanamine, N-methyl-N-nitroso
3.49E–02
1 ppm
Methanol
2.76E–11
1%
Methoxone
1.72E–07
1%
Methoxychlor
5.67E–08
1%
Methyl acrylate
4.39E–09
1%
Methyl bromide
1.12E–06
1%
Methyl chlorocarbonate
—
1%
Methyl ethyl ketone
3.16E–10
1%
Methyl hydrazine
3.36E–03
10 ppm
Methyl iodide
—
1%
Methyl isobutyl ketone
1.08E–09
1%
Methyl isocyanate
4.23E–05
0.10%
Methyl isothiocyanate
1.16E–09
1%
Methyl methacrylate
9.96E–10
1%
Methyl parathion
3.79E–08
1%
Methyl tert-butyl ether
6.47E–07
1%
Methylene bromide
2.12E–08
1%
continued