Exposure to burning automobile brake shoes

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Article #8031

#8031

From: Tom Dempster
Date: Sat, 17 Oct 1992 21:25

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[ Article crossposted from sci.environment ]
[ Author was Tom Dempster ]
[ Posted on Sat, 17 Oct 1992 19:12:12 GMT ]

[ Article crossposted from rec.bicycles.misc ]
[ Author was Tom Dempster ]
[ Posted on Sat, 17 Oct 1992 18:47:26 GMT ]

Can any medical/health professionals out there comment on the 
physiological effects of the following exposure?

I frequently travel by bicycle for recreational purposes in
the Sierra Nevada range of mountains here in California. I 
notice an odor which I suspect is burning brake shoes when
motor vehicles pass by after negotiating steep downhills.
The intensity of the odor appears to vary with the grade
and duration of the downhill section which the vehicle has
just descended. Larger vehicles seem to emit a heavier dose.

What substance is fouling the air in this circumstance?

Realizing that any statements concerning toxic exposure
must be quantitatively qualified, what can be concluded,
if anything from this with regards to any adverse health
effects?

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From: tomd@netcom.com (Tom Dempster)
Subject: Exposure to burning automobile brake shoes
Message-ID: <1992Oct17.212536.22359@netcom.com>
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Date: Sat, 17 Oct 1992 21:25:36 GMT
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