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AIR

    Some air spells allow the character to alter the content of the air.  If the character removes oxygen then unconsiousness will result in about five minutes and death in about thirty minutes.  Some gasses have other interesting effects.  Even non toxic gasses can be dangerous in large quantities by reducing the amout of oxygen breathed.  Percentage of air Displacement, resultant State of shock, and injuries are as follows.

Oxygen displacement
25%  Air hunger (shortness of breath & rapid, shallow breathing)
50%  Dazed (mental confusion, or dizziness + pale skin), possible anoxia.
75%  Weakness (dry mouth & seamingly calm + tired), possible asphyxia.

     Acetalyne is lighter than air and slightly soulable in water.  Burns in air with an intensly hot, lumanous smokey flame.  Acetaline and oxygen under presure can produce a flame in excess of 900 degrees celcius.  Mildly anesthetic.  Explodes in mixed with chlorine and exposed to sunlight.  Normally produced by mixing calcium carbide and water.
     Amonia has a pungent odor, is highly soluble in water (meaning high humidity will absorbe it), odor discernable at 15 parts per milion (ppm), iritation to nose and buning eyes at 100 ppm, nausea(DX-4, MA-4) and headach with unconciousness after ST x 3 minutes at 300 ppm, cough provoking , serious injury after 30 minutes at 1700 ppm, life thretening 30 minutes at 3500 ppm, lethal in 10 t o 15 minutes at 5000 ppm.  May produce spontaneous explosions if mixed with clorine.
     Butane is heavier than air, explosive when mixed with oxygen, odor discernable at 5000 ppm, causes drowsiness ( 1 fatigue a minute) at 10,000 ppm, at 70% air displcement (700,000ppm) will prove lethal in body x minutes.
     Carbon monoxide (CO) is highly toxic and flamable.  1000 ppm will cause serious oxygen deficiency, accelerated breathing, slight headache, sever headache, nausea(DX-4, MA-4), confusion, double vision, loss of conciousness, and finally death at 4000 ppm.  Repeated non fatal poisoning can cause nerve damage resulting in reduced field of vision, impared hearing, heaches and anorexia.  Prolonged unconciousness can lead to congestion of the brain (permenant -1 IQ)
     Carbon dioxide (CO2) is slightly toxic, has a pungent acidic taste, and is heavier than air.  The normal amount found in the atmosphere is 0.04%; 2% causes 150% normal fatigue, 3% causes 200% normal fatigue, 5% causes 400% normal fatigue along with nausea(DX-4, MA-4), 10% will cause cramps, shock and unconsiousness though the victim will recover quickly if brought into fresh air;  18%+ cuases physiological reaction similar to a stroke.
     Chlorine is an irritant which attacks mucus membranes in eyes and respritory passages.  Greenish yellow gas, heavier than air and souluble in water.  At 0.5 ppm dicernable odor causing copious salivation, at 70 ppm chest pains, retching, vomiting, and nausea, at 350 ppm causes death in minutes from spasms in the larnx and bronchial tubes.
     Ozone is a blue gas with pungent odor easily ignited.  Odor at 0.015 ppm, nausea, headache, and irritation in the upper respiratory tract causing perminant lung damage after 30 minutes, at 1 ppm bleeding in the lungs, and death ensues at 10 ppm.
 
 

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