Results of Interactions with:
Possible Sources
Oxygen
Other Chemicals
of Polluîgnf
Low
oxygen
in—
Carbon dioxide reduces toxicity by lowering
Chemical, gas, and ice plants;
“60595 t‘3XÏCÏŸYthe PH—
scouring and cleaning operations using ammonia water.
Synergistic with copper. The toxicity of zinc
Electroplating; ceramics pigand cadmium is additive [] ].
mentation; insecticides; textile
printing.
Antagonistic to lead, zinc, aluminum, and
Brewing; tunning; production
toxic solutions of sodium, magnesium, and poof
mineral
water;
manufactassium chloride salts [2].
turing of glue, paint, and explosives; runoff from roads.
Toxic substances are formed by the addition
Sewage treatment; bleaching
of chlorine to a variety of chemicals: combines
(as in textile mills); chemical
with thiocyanate to transform a nontoxic efcontrol of biological growth in
fluent sample into a toxic one [3]; converts
cooling waters.
parathion
paraoxan,
a
more
toxic
insecticide [4]; combines with the phenols and
ammonia to form chlorophenols and chloramines, both toxic substances [5].
Toxicity of sodium
Metal
pickling;
anodizing
chromate increases
aluminum; tunning; manufacas
dissolved oxyture
of paints, dyes, explogen decreases.
sives, ceramics.
———_____—__———————————————
lncreases the toxicity of nickel.
Decorating and plating.
M
Toxicity
increases
Synergistic with chlorine, zinc, cadmium, and
Corrosion of copper tubing; alwith decreases in
mercury. Exhibits antagonism toward sodium
gicides; textile pigmentation;
Oxygen tension.
nitrite and sodium nitrate, and decreases the
tunning,— photographm processtoxicity of cyanide.
ing; engraving; electroplating.
M
Toxicity increases
Becomes very toxic when mixed with zinc or
Gas works; coke ovens; steel
with decreases in
cadmium.
(gas scrubbing); metal cleaning
oxygen
tension
and
electroplating; chemical
[ô].
industries.
Appendix
191