Re: [Paddlewise] jetskis and air pollution

I seem to recall that the bigger pollution issue with the 2 strokes in Jet
Ski's is that they end up dumping about a third of the gasoline they use
into the water.

-----Original Message-----
From: Wes Boyd <boydwe_at_dmci.net>
To: PaddleWise_at_lists.intelenet.net <PaddleWise_at_lists.intelenet.net>
Date: Wednesday, October 27, 1999 1:33 PM
Subject: [Paddlewise] jetskis and air pollution


>I just discovered an interesting report on air quality in national parks.
>The report is interesting in that it points the finger at snowmobiles as
>being a main contributer to air quality problems. "When compared to
>automobile emissions, snowmobiles can emit 100 times more carbon monoxide
>and 300 times more hydrocarbons," the report states.
>
>The report notes a study that was conducted at Yellowstone to monitor
>personal exposure for particulate matter and volatile organic compounds.
>"The maximum time-weighted concentration of particulate matter on the
>13th and 14th of February showed concentrations of 116 and 122 particulate
>matter, respectively; the National Ambient Air Quality Standard for
>acceptable particulate matter concentrations is 60.  To put this in
>perspective, the maximum 24-hour particulate matter concentration in
>the Los Angeles suburb of Azusa in 1997 was 68."
>
>The National Park Service summary of the report is available at:
>
>http://www.nps.gov/morningreport/msg00384.html
>
>It's down toward the end of the page. Read the full summary -- it's
>interesting. A bit dry, but brutal.
>
>OK, so what does this have to do with kayaking? Simple -- jetskis use the
>same two-stroke engines as snowmobiles. I've commented that you can smell
>a jetski whether you can hear it or not, and there are a lot of two-stroke
>outboards out there as well that even stinkier cusses.
>
>There have been recent attempts to ban two-stroke engines for marine use
>in several areas, and they've met with a fair amount of success. While
>jetskis and their users can often be a pest, they do have some ground to
>stand on from a fair-use viewpoint, at least to some degree. Air pollution
>issues, however, are different, and jetskis are vulnerable to them.
>
>-- Wes
>
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