Environmental Engineering Reference
In-Depth Information
Pollutants
Major Sources
Typical Ef ects
References
Zn
Zinc rei neries, galvanizing processes, brass
manufacture, metal plating, plumbing
Zinc fumes have corrosive ef ects on skin and
can cause irritation and damage mucous
membranes
[31]
Mn
Ferromanganese production, organo-manganese
fuel additives, welding rods, incineration of
manganese containing substances
Poisoning of central nervous system (CNS),
absorption, inhalation, or skin contact may
cause manganic pneumonia
[38]
Ni
Metallurgical industries using nickel, com-
bustion of fuels containing nickel additives,
burning of coal and oil, electroplating units
using nickel salts, incineration of nickel
containing substances
Respiratory disorders, dermatitis, cancer of
lungs and sinus. Histological alterations
in the epididymis and seminal vesicles;
decreases in sperm concentration, motility,
abnormalities, and in fertility. h e observed
ef ects include inl ammatory changes in
the lungs, atrophy of the nasal olfactory
epithelium, hyperplasia in the bronchial
and mediastinal lymph nodes, impaired
immune function, and decreases in body
weight gain, which are probably secondary
to the lung damage
[32, 33, 34,
35, 36]
Se
Burning of fuels and residual oils, fumes and
gases from rei nery wastes, incineration of
paper and other wastes
Irritation of gastro-intestinal and respiratory
tracts, irritation of eyes, nose and throat,
damages to lungs, liver and kidneys
[39]
( Continued )
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