RT Report
T1 Manganese: Environmental Health Criteria 17
A1 United Nations Environment Programme, 
A1 World Health Organization, 
K1 manganese
K1 environmental health
K1 fluorescence
K1 environmentally hazardous substance
K1 waste disposal
K1 air pollution
K1 water pollution
K1 respiratory disease
K1 nervous system disease
SN 92 4 154077 X
YR 1981
FD 1981
LK https://wedocs.unep.org/handle/20.500.11822/29300
UL https://wedocs.unep.org/handle/20.500.11822/29300
NO Manganese, Mn (atomic number Z = 25; relative atomic mass A r = 54.938) is an element of the VIIb group of the periodic table of elements, together with technetium and rhenium. It belongs to 16 the first series of d-block transition elements which also containstitanium, vanadium, chromium, nickel, and copper. Because of their electron configuration, transition elements have some characteristic properties: they are all metals; they exist in a variety of oxidation states; and they form many coloured and paramagnetic compounds. Several transition elements have an important role in biological systems.
DS UN Environment Document Repository
RD Sep 24, 2026