250
Toxic Chemicals
TABLE 16.1 (continued)

Proposed Chemical Usage Concentration Reporting Thresholds for
TRI Chemicals
Chemical
ETF (Doses/
Capita-lb)
Reporting
Threshold
Metribuzin
9.18E–10
1%
Michler’s ketone
—
1%
Molinate
5.81E–08
1%
Molybdenum trioxide
—
1%
Monochloropentafluoroethane
—
1%
M-Phenylenediamine
3.64E–08
1%
M-Xylene
3.82E–10
1%
Myclobutanil
1.98E–10
1%
N,N-Dimethylaniline
2.06E–08
1%
N,N-Dimethylformamide
5.65E–08
1%
Nabam
—
1%
Naled
6.18E–10
1%
Naphthalene
6.16E–06
1%
N-Butyl alcohol
6.19E–10
1%
N-Dioctyl phthalate
—
1%
N-Ethyl-N-nitrosourea
2.27E–03
10 ppm
N-Hexane
6.66E–08
1%
Nickel and nickel compounds (fumes or dust)
2.50E–05
0.10%
Nicotine and salts
—
1%
Nitrapyrin
—
1%
Nitrate compounds
1.13E–09
1%
Nitric acid
0.00E+00
1%
Nitrilotriacetic acid
—
1%
Nitrobenzene
7.68E–06
1%
Nitrofen
—
1%
Nitroglycerin
6.71E–07
1%
N-Methyl-2-pyrrolidone
—
1%
N-Methylolacrylamide
3.22E–03
10 ppm
N-Nitrosodiethylamine
6.06E–02
1 ppm
N-Nitrosodi-N-butylamine
7.73E–04
100 ppm
N-Nitrosodiphenylamine
2.21E–06
1%
N-Nitrosomethylvinylamine
—
1%
N-Nitroso-N-methylurea
2.81E–02
1 ppm
N-Nitrosopiperidine
3.04E–03
10 ppm
Norflurazon
2.52E–10
1%
O-Anisidine
6.15E–06
1%
O-Cresol
2.01E–09
1%
O-Dinitrobenzene
1.45E–07
1%
O-Phenylenediamine
3.84E–06
1%
O-Phenylphenate, sodium
—
1%