NIOSH Standards: There is a NIOSH REL time weighted average for Propoxur of 0.5 mg/m3
. The NIOSH REL
for Carbofuran is 0.1 mg/m3
. The NIOSH REL standard for Carbaryl is 5 mg/m3
. The NIOSH limit for Methomyl
is 2.5 mg/m3
averaged over a 10-hour work shift. Since there are over 40 carbamate insecticides, this list
should not be considered inclusive of the occupational exposure limits.