Proposed Cal. Marine Engine Regs.
Larry
report. Sorry guys...Larry
On Thu, 09 Jul 1998 18:36:30 -0700, jim...@earthlink.net (Jim Hill)
wrote:
>Public meetings were held today (7-9-98) to discuss the proposed
>California Marine Engine Regs. This issue will probably be covered in
>Cal. papers tomorrow or Friday.
>
>Here's the website for the Engine Regs., for those that want to learn more
>about this issue themselves.
>
>http://www.arb.ca.gov/msprog/marine/marine.htm
>
>The "Draft Proposal Summary" available from the website (in PDF) is
>particularly interesting.
>Some of the information in it, includes:
>----------------------------------------------------------------------------
>the exhaust emissions from two hours of personal watercraft operation is
>equivalent to the emissions from a 1998 passenger car operated over
>100,000 miles.
>---
>
>According to studies cited in the U.S. EPA gasoline SI marine
>engine rulemaking, conventional two-stroke engines discharge 25 to 30
>percent of fuel unburned
>into the water. Recent attention focused on detection of
>methyl-tertiary-butyl-ether (MTBE) in
>drinking water supplies has caused a number of water quality agencies to
>consider restriction of
>two-stroke watercraft on particular waterways. Other gasoline constituents
>emitted into the
>water, including carcinogenic benzene and toluene, have also been of
>significant concern.
>---
>
>1997 Statewide Recreational Marine Engine Emissions
>(tons per day)
>Equipment Type Population HC NOx HC+NOx
>CO PM
>Personal Watercraft 161,898 246 2 248
>414 13
>Outboards 346,372 63 1
>64 120 4
>Total 508,270 309 3
>312 534 17
>---
>
>Water agencies are under increasing pressure to restrict activity of watercraft
>adversely affected by unburned fuel discharge from watercraft. ARBąs
>emission standards will
>improve water quality by lowering the amount of emissions discharged into
>water during
>operation. These standards will alleviate the need for restrictions or
>bans on activity for some
>waterways as emissions from the marine engine fleet improves with the
>implementation of the
>regulation. However, waiting for fleet turnover to improve water quality
>may not be adequate for
>some waterways. For particularly sensitive waterways, a program which
>would restrict
>recreational activity to engines meeting ARBąs corporate average standards
>may be a desired
>solution. In order to develop an effective program allowing only clean
>engines access to specific
>waterways, a mechanism for simple, enforceable and effective
>identification of clean engines is
>needed.
>--------------------------------------------------------------------------------------
>Note the chart showing the populations of PWC and outboards. While there
>are 2.1 times as many outboards as PWC, PWC have 3.9 times the hydrocarbon
>emissions. It's clear where the most serious 2-stroke pollution problems
>are coming from-PWC.
>
>The last paragraph is interesting in that it clearly signals an intent to
>preclude bans on some waterways by more quickly switching to cleaner
>engines, but opens the possibility of only allowing "clean" engines on
>other waterways while restricting older dirty engines.
>
>There's much more in the document, that I didn't include here.
>
>This may be important to other states' boaters, since Cal. regs sometimes
>are used later in other locations.
>
>--
>jh
>--
Larry
posts and I hit the wrong button....Sorry...
>>adversely affected by unburned fuel discharge from watercraft. ARBšs
>>emission standards will
>>improve water quality by lowering the amount of emissions discharged into
>>water during
>>operation. These standards will alleviate the need for restrictions or
>>bans on activity for some
>>waterways as emissions from the marine engine fleet improves with the
>>implementation of the
>>regulation. However, waiting for fleet turnover to improve water quality
>>may not be adequate for
>>some waterways. For particularly sensitive waterways, a program which
>>would restrict
>>recreational activity to engines meeting ARBšs corporate average standards
X*2 & XPL Fan (Dennis Copfer)
dc