I am VERY sensitive to exhaust fumes, cigarette smoke, diesel smoke, etc. and
while I haven't read anything other than an article in a USA TODAY from last
year, I can guarantee that a strange feeling comes over me while the Zamboni
is running.  Also, the fumes must settle down next to the ice, because when
the players skate around before the start of the period I can smell and sense
the fumes as they are circulated up and over the glass.  This is worse now
than in the "old days", since the exhaust fans which used to be turned on to
draw cold air in through four huge louvered vents in the gable end were turned
off, ironically for "Fan comfort"!  (With the addition of Alberding Fieldhouse
onto the end of Lynah Rink, the aforementioned exhaust fans were permanently
removed).  This is, in reality, a serious problem, especially in small rinks
without proper ventilation.  It should be mandated that all Zambonis (and
Halstons, since that's what we have) be converted to run on natural gas.  In
rinks where propane or natural gas is used, there is far less problem. George.