The maximum immission doses (MID) for molybdenum are intended to protect livestock raised on pastures or in animal houses. The limits are based on results of feeding experiments with farm animals raised for use. In these experiments the animals received fodder to which sodium or ammonium molybdate was added or whose content of sodium or ammonium molybdate was urally high or was increased by ambient air pollution.
VDI 2310 Blatt 37-1998 history
2015VDI 2310 Blatt 37-2015 Maximum immission values - Maximum molybdenum intake values to protect farm animals and the food derived from them
1998VDI 2310 Blatt 37-1998 Maximum immission values - Maximum molybdenum immission values for livestock
1997VDI 2310 Blatt 37-1997 Maximum immission values - Maximum immission values for molybdenum to protect farm animals