010140000a22002530004500 PH-MaWHO 20241108112334.0 Joint ILO/WHO Committee on Occupational Health (1968 : Geneva). 656817 Permissible levels of occupational exposure to airborne toxic substances : sixth report of the Joint ILO/WHO Committee on Occupational Health [meeting held in Geneva from 4 to 10 June 1968]. 92-4-120415-X Geneva : World Health Organization, 1969. (WHO technical report series ; 415) 16p. WHO/HQ File eng Air pollution 57232 Occupational diseases Prevention and control 653822 Environmental exposure 148411 Maximum allowable concentration 225921 World Health Organization 656818 International Labour Organisation 651067 http://whqlibdoc.who.int/trs/WHO_TRS_415.pdf MONO 7973 7973 0 0 0 0 WPRO WPRO 2021-05-23 0 WHO/HQ File 07973 2024-01-24 00:00:00 2021-05-23 MONO