Ha PAU DU BON BUD Eee 
re not being treated. Nitrous oxides are produced by combustion or 
ng. Usually the higher the temperature of combustion, the more 
is oxides are generated. 
nly a few studies have been made on how nitrous dioxide affects 
1, but it has been identified as the culprit in silo poisoning—where 
rs have died or have been permanently injured through breathing air 
is recently filled with fodder. 500 parts of nitrogen dioxide per one 
n parts of air in a silo causes almost immediate death. 300 to 500 parts 
rogen dioxide per one million parts of air may result in death within 
yeeks. Exposure to less concentrated amounts of nitrogen dioxide may 
pneumonia and other illnesses. While the amounts of nitrogen dioxide 
poisoning are far greater than those presently contained in the urban 
pheres, we don’t know what repeated exposure to small amounts of 
en dioxide can mean to human health. 
utomotive vehicles discharge 7 to 8 million tons of oxides of nitrogen 
lly in this country. The automobile industry resists regulatory re- 
nents for the reduction or elimination of nitrous oxides from .auto- 
e exhaust. 
itrogen dioxide itself is a poison. Further, it plays a key role in the 
ction of other irritating and poisonous materials through photosyn- 
with ultra-violet rays from the sun. The California State Department 
blic Health recently reported that if rats are exposed to nitrogen 
le in amounts as little as one part per million for times as short as 
10urs, significant abnormal changes take place in the fatty tissues 
animals’ lungs. 
-automobile industry has been successful in decreasing hydrocarbon 
garbage. However, the method they are using to reduce unburned 
carbon pollution has significantly increased the amount of nitrogen 
le pollution. 
et the automobile industry refuses to control nitrogen dioxide spew- 
it of automobile exhaust. In addition, the trend to higher compression 
2s significantly increases the amount of nitrogen dioxide produced. 
ng scientists point out that by 1975 the emission of hydrocarbons by 
obiles will have been reduced to about half its present amount. But 
ions of oxides of nitrogen will simultaneously double over present 
ities—which completely neutralizes whatever success is achieved in 
Ming hydrocarbons. 
itrogen oxides in the presence of sunlight are responsible for kicking 
> whole complex series of reactions that eventually give way to smog. 
help create the group of specific pollutants known as peroxyacyl- 
es (PANs). These foul ingredients of smog have never before been 
n to man until we spawned them. They do not occur in nature. PANs 
und in the filthy, polluted aid in the Los Angeles basin and other large 
politan areas. PANs are totally evil. They damage and kill plants 
egetables. They irritate, sting and burn the eyes. They obviously affect 
ealth of any living organism. Damage to plants by PANs has been 
ed in over half of our states. 
hile scientists all agree that nitrogen oxides play key roles in the 
on of smog, there is disagreement as to whether nitrogen oxides from 
Obiles should be controlled. Some automotive scientists suggest that 
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