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Administrative data

Description of key information

Methyl Bromide is toxic by the oral and inhalation routes described in this set of experiments.  Evidence of this toxicity was seen in a reduction of body weights throughout a number of studies.  Mortality findings, alterations of the forestomach mucosa of rats and a reduction in absolute liver weights were also taken as signs of the toxic effect of Methyl Bromide.

Key value for chemical safety assessment

Additional information

An overview of the studies described in 7.5.1 to 7.5.2 is given in table 5.3.4 -1

 

Table 5.3.4 -1 Overview of short-term toxicity studies with Methyl Bromide

 

Parameter

Test material

Species

Result (NOEL)

Reference

NOEL (oral, 90 day)

Methyl Bromide

Rat

< 50 mg/kg bw

Boorman, 1986

NOEL (oral, 90 day)

Methyl Bromide

Rat

2 mg/kg bw

Danse, 1984

NOEL (oral, 1 year)

Methyl Bromide

Dog

> 0.27 mg/kg bw

Newton, 1995

NOEL (inhalation, 28 day)

Methyl Bromide

Rabbit

< 65 ppm

Angeret al, 1981

NOEL (inhalation, 28 day)

Methyl Bromide

Rat

69 mg/kg bw

Angeret al, 1981

NOEL (inhalation, 28 day)

Methyl Bromide

Rat

< 170 mg/kg bw

Eustiset al, 1988

NOEL (inhalation, 4 hour)

Methyl Bromide

Rat

< 159 mg/kg bw

Katoet al, 1986

NOEL (inhalation, 28 day)

Methyl Bromide

Dog

21.6 mg/kg bw/day

Newton, 1994

NOEL (inhalation, 42 day)

Methyl Bromide

Dog

18 mg/kg bw

Schaefer, 2002

NOEL (inhalation, 90 day)

Methyl Bromide

Mouse

39 mg/kg bw

Drew, 1984

NOEL (inhalation, 90 day)

Methyl Bromide

Mouse

39 mg/kg bw

Cockerhamet al, 1992

NOEL (inhalation, 90 day)

Methyl Bromide

Rat

32 mg/kg bw

Cockerhamet al, 1992

 

Justification for classification or non-classification