Heavy Traffic Jogging, Pt. I 
Author Message
 Heavy Traffic Jogging, Pt. I

Quote:
>>>>>However,  frequently I see joggers run along roads with

heavy traffic,  and I wonder if the breathing of exhaust gases
under exercise conditions actually does more harm than the
exercise does good.  What do the medical experts say?<<<<<

   Results from the 3RD U.S.-DUTCH OZONE SYMPOSIUM IN NIJMEGEN,
THE NETHERLANDS,  MAY,  1988: Ozone -the key ingredient of smog-
maintains a constant level after peaking,rather than quickly
dissipating.  Ozone levels in New Jersey,  REGULARLY REACHED A
HIGH OF .1 PPM and stayed at that level for more than eight
hours;  ozone creates breathing problems at doses of less than
.12 ppm.  Again,  in NJ,  children at a summer camp exposed to
an eight-hour average of .1 ppm ozone experienced a loss of lung
power [study performed by the University of Medicine and
Dentistry of New Jersy].

   Ozone not only causes breathing problems,  but also
inflammation of the lung,  a condition associated with chronic
lung diseases such as fibrosis.  After exposing subjects to .4
ppm,  EPA scientists rinsed the subject's lungs with a saline
solution and found a significant increase in white {*filter*} cells
associated with inflammation.  SIMILAR FINDINGS WERE FOUND AT
DOSES AS LOW AS .1PPM.

   Ozone causes more lung damage as time of exposure
increases---even in doses well below .12 ppm.  In the same class
of men who had trouble breathing after two hours of exercise in
.15 ppm of ozone,  it was found that exposed to .12 ppm for 6.6
hours of exercise,  they lost as much lung power as if exposed
to .25 ppm for two hours.  Difficulty continued even as doses
dropped to .08 ppm.

/160

--  
Uucp: ...{gatech,ames,rutgers}!ncar!noao!asuvax!stjhmc!115!689!Lance.Sanders



Mon, 19 Apr 1993 19:38:00 GMT
 Heavy Traffic Jogging, Pt. I
In a message of <29 Oct 89 12:00:58>, Lance Sanders (1:115/689) writes:

 >>>>>>However,  frequently I see joggers run along roads with
 >heavy traffic,  and I wonder if the breathing of exhaust gases
 >under exercise conditions actually does more harm than the
 >exercise does good.  What do the medical experts say?<<<<<
 >
 >
 >   Results from the 3RD U.S.-DUTCH OZONE SYMPOSIUM IN NIJMEGEN,
 >THE NETHERLANDS,  MAY,  1988: Ozone -the key ingredient of smog-
 >maintains a constant level after peaking,rather than quickly
 >dissipating.  Ozone levels in New Jersey,  REGULARLY REACHED A
 >HIGH OF .1 PPM and stayed at that level for more than eight
 >hours;  ozone creates breathing problems at doses of less than
 >.12 ppm.  Again,  in NJ,  children at a summer camp exposed to
 >an eight-hour average of .1 ppm ozone experienced a loss of lung
 >power [study performed by the University of Medicine and
 >Dentistry of New Jersy].
 >
 >   Ozone not only causes breathing problems,  but also
 >inflammation of the lung,  a condition associated with chronic
 >lung diseases such as fibrosis.  After exposing subjects to .4
 >ppm,  EPA scientists rinsed the subject's lungs with a saline
 >solution and found a significant increase in white {*filter*} cells
 >associated with inflammation.  SIMILAR FINDINGS WERE FOUND AT
 >DOSES AS LOW AS .1PPM.
 >
 >   Ozone causes more lung damage as time of exposure
 >increases---even in doses well below .12 ppm.  In the same class
 >of men who had trouble breathing after two hours of exercise in
 >.15 ppm of ozone,  it was found that exposed to .12 ppm for 6.6
 >hours of exercise,  they lost as much lung power as if exposed
 >to .25 ppm for two hours.  Difficulty continued even as doses
 >dropped to .08 ppm.
 >

Carbon Monoxide poisoning is also a problem.  Like ozone, that stuff is relatively persistent at street level.  Then you have particulates from diesel engines (read "soot") and that awful sulfur dioxide odor from catalyic converters can't be very helpful. Best, Bill  (my info is largely from bicycling sources, not jogging-never could figure out why someone with two perfectly good feet is so eager to wear them out running  :)  )  

--  
Uucp: ...{gatech,ames,rutgers}!ncar!noao!asuvax!stjhmc!11!301!Bill.Allbritten



Mon, 19 Apr 1993 21:21:00 GMT
 
 [ 2 post ] 

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