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From:
UNL Environmental Health & Safety <[log in to unmask]>
Reply To:
UNL Environmental Health & Safety <[log in to unmask]>
Date:
Thu, 7 Jul 2005 14:40:41 -0500
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In this issue of the Environmental Health and Safety (EHS) Listserv, July
7, 2005:

1. EHS Staff - Phone Changes
2. Hot Weather, Heat Stress, and Hyponatremia
3. Free Rollover Protection (ROPs) for Mowers

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1. EHS Staff - Phone Changes

Several of the EHS staff have switched from land lines to cellphones.
Although their numbers remain the same, it is necessary to dial 9, then
472-XXXX (dialing 2-XXXX will produce a busy signal).

Zuleika Doremus
(402) 472-9552

Bruce Haley
(402) 472-5038

Bill Lyons
(402) 472-9553

Dan Olsen
(402) 472-4928

Mindy Yost
(402) 472-0288



2. HOT DAYS AND HYPONATREMIA


Summer heat and humidity can increase your body's need for liquid.  Failing
to meet that need can lead to dehydration, which can lead to heat stress
and heat stroke, both of which can lead to serious health problems.  Now is
a good time to think about preventing heat-related ailments by keeping your
body properly hydrated.


Follow these basic guidelines for preventing dehydration:
   Drink liquids before, during and after work (or exercise).
   Be sensitive to your thirst and prepared to take a sip every 15 to 20
   minutes.
   Because your body absorbs cool water more quickly, drink it when you
   have the choice.


If not taking in enough water can lead to heat stress or heat stroke, does
it follow that more water is always better? Or is it possible to take in
too much liquid? In other words, can you over-hydrate?


In recent years a number of deaths have been associated with a condition
known as hyponatremia. In these cases the victims appear to have taken
advice to drink plenty of fluids a little too seriously. Long distance
runners run the highest risk.


Hyponatremia occurs when the concentration of electrolytes in the blood
falls to dangerously low levels. The symptoms are similar to those of heat
stress: fatigue, weight gain, dizziness, cramping, headaches and confusion,
and in severe cases, seizures and coma. Cases of hyponatremia have been
rare, but what the victims all had in common was over-consumption of water.


Sweating cools your body, but it also depletes electrolytes (sodium and
chloride). By consuming too much liquid during heavy work or intense
exercise, you can deplete your body’s electrolyte levels. With the loss of
sodium and chloride, water cannot permeate cell walls and therefore cannot
be absorbed. Without adequate water, muscles and organs cannot function
properly.


Follow this advice to avoid hyponatremia during periods of intense
activity:
   Take your fluid in small amounts.
   Don’t overdo the water. Use sports drinks to replace lost electrolytes.
   Keep up your strength with snack foods such as pretzels.
   Drink tomato juice or hot clear chicken broth for their high sodium
   content.


Hyponatremia is rare. Unless you are engaged in extended periods of intense
activity you shouldn’t need to regularly substitute other liquids for water
or add additional salt to your diet. Following the basic guidelines for
good hydration will help to prevent heat stress and heat stroke, but when
“the heat is on,” be aware and take extra care.


For more information on this hot topic, go to:
www.cdc.gov/niosh/topics/heatstress/.
www.osha.gov/sltc/heatstress/.
www.cdc.gov/niosh/hotenvt.html.
www.acsm.org.
www.weatherimages.org/data/heatindex.html.



3. Free Rollover Protection (ROPs) for Mowers

Free ROPS for Mowers

The Exmark safety staff has indicated they are now offering free
non-foldable ROPS that includes installation at no charge, or two-post
foldable ROPS installed for only $179.00 (letter available at
http://www.exmark.com/popups/ropsletter.htm). The Toro rep, stated that
Toro owns Exmark and that Toro is offering both the non-foldable ROPS and
foldable ROPS, installed, for free through the summer (their web page
hasn't been updated - it shows the same choice as Exmark offers).

Below are the links for the Exmark and Toro web pages.

http://www.exmark.com/index_flash.htm
http://www.toro.com/

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