Docstoc

Powerpoint Slides - DOC - DOC

Document Sample
Powerpoint Slides - DOC - DOC Powered By Docstoc
					PowerPoint Slides:
Slide 1

Slide 2  Today we are going to talk about mold and moisture in the home.  We will cover what mold is, and where it is found.  We will talk about why it grows in your home, and what the health effects of it are.  We will talk about ways to recognize mold, how to remove it, and how to keep it out of your home.

Slide 3  What is Mold?  Molds are part of our environment. They can be found everywhere, inside and out.  The term “mold” describes thousands of species of microscopic fungi which grow on wet organic matter.  Outdoors, molds play a part in breaking down dead organic matter. Remember that pile of leaves in the fall that you turn over only to find mold growing?  They can grow on almost anything if it is wet enough.  Note that molds grow on foods in your refrigerator, as well as on shower curtains, and damp surfaces in basements.  Molds may look like furry growth, black stains, or specks of white, green, brown, orange, or black.  Molds need moisture to grow.  They reproduce by means of tiny spores. These spores are invisible to the naked eye, but they float through indoor and outdoor air.  They will begin to grow when they land on surfaces that are wet.  The spores begin to grow and digest whatever they have landed on, eventually destroying the surface.  Of all the different kinds of molds in our environment, none will grow without water or moisture.  There is no practical way to eliminate all mold and mold spores from indoor environments, the key is to control moisture. Slide 4  Molds will grow on any organic materials where there is moisture.  They can grow on almost anything when there has been water damage, or dampness, or high humidity.  Mold grows between the temperatures of 32 and 100 degree Fahrenheit, although they like temperatures between 77 and 86 degrees best.

Slide 5  Excess moisture is the underlying cause of mold problems in indoor environments.  The key to prevention and correction is moisture control.  People produce 3 pints of water daily just by breathing.  Other moistures sources include cooking, cleaning, and taking showers.  About one pint of moisture comes from a 10 minute shower.  Moisture coming from basement walls and floors can be up to 100 pints per day with wet soil. Slide 6  Excess moisture sources are not only from indoor sources, but also come from the exterior of the home.  Many of these relate to the weather, including snow and flooding.  Other moisture sources may come from situations where the home’s exterior has been breached, like leaky windows, roof damage, etc.

Slide 7  Mold is easy to detect. If you can see it or smell it, you have mold.  It can usually be detected by a musty odor.  Often, people say “My basement smells musty.” That is a signal that there is mold growing somewhere in that basement.  Mold comes in many different colors. It can be white, green, pink, brown, orange, or black.  The color is not, by itself, an indicator of toxic molds.  Mold can grow in places where you can see it, or it can grow in hidden places like under carpets and inside walls. Slide 8  Molds, whether they are indoors or outdoors, can produce a variety of allergic reactions.  Mold reports are a common part of weather broadcasts on nightly news programs, alerting people who are sensitive to restrict their exposure to outdoor mold spores.  Individuals may react differently to mold exposure. Some people have no adverse effects when exposed to common mold sources, while others are highly sensitive and experience more severe symptoms.  Individuals who are more susceptible include those with respiratory problems, those with a compromised immune system, the very young, and the elderly.  Common health problems associated with mold exposure: o Watery or itchy eyes o Sore throat o Stuffed up nose o Coughing o Wheezing o Dizziness o Skin Irritations/Rashes o Headaches o Fatigue  Molds are also considered to be an asthma trigger so those people who suffer from asthma are more at risk when exposed to mold spores in indoor environments.  Some molds are more hazardous than others.  Certain types of molds can produce toxins, called mycotoxins that the mold uses to inhibit or prevent the growth of other organisms.

 Mycotoxins can be found in both living and dead mold spores, so it can continue to cause problems even if the surface area containing the mold has been cleaned.  Exposure to mycotoxins may present a greater hazard than that of allergenic or irritative molds. Slide 9  Testing for mold can be an expensive proposition since it requires special equipment and training.  To date neither the Environmental Protection Agency nor any other Federal agency have set limits for mold or mold spores so there is no way to determine a “safe” level of mold in the home since molds can be found everywhere indoors and out.  What is sometimes done is to compare the indoor level of one type of mold species against the same specie outdoors. That may provide an indicator of higher mold growth in the home.  The best way to detect mold in the home is by seeing or smelling it.  It may be possible to sample or test a surface area to determine if it has been adequately cleaned or remediated.  OR  One of the most common questions homeowners have is, “How do I test for mold?”  Most experts will discourage you from testing for mold because it is usually not necessary to identify the specific mold, and tests can be quite costly.  Furthermore the standards for judging acceptable or tolerable quantities of mold in indoor environments have not yet been established.  Testing to determine the kinds and amounts of mold present is rarely helpful because no single test can detect all types of mold, and the results can only estimate the amount of mold present, and only for the time the sample was taken.  Problems can also occur in the interpretation of the results, and findings may produce false negative results. Additionally, test results are not predictive of health risks.  Identifying mold in the home may be a rather simple process. You can usually either see it or smell it. Look for areas where mold may be visible. Mold may be any color: black, white, red, orange, yellow, blue, or violet. Also look for discoloration of building materials where previous water damage may have occurred, such as drywall or plywood.  Another way to identify the presence of mold is through the odor associated with it. A musty or earthy smell often indicates the presence of molds. If you’ve ever walked into a closed up home or entered an old building, you may have smelled mold. Sometimes your nose tightens up, or you might even get a headache.  Locate where the odor is most intense to see if you can see mold growing. Since the sense of smell decreases rapidly, it is best to smell for mold after being away for a while.  If you do decide to pay for environmental sampling of molds, before the work starts, you should ask those doing the work to establish the criteria for interpreting the test results. They should tell you in advance what they will do, or what recommendations they will make based on the sampling results. The results of samples taken in your unique situation cannot be interpreted without physical inspection of the contaminated area, or without considering the building’s characteristics and the factors that led to the present condition.

Slide 10  Can mold be toxic? o Some molds can produce toxic substances called mycotoxins.  What is "black mold"? o The news media often refer to "black mold" or "toxic black mold." o It has usually been associated with the mold Stachybotrys chartarum, a type of greenish-black mold commonly associated with heavy water damage. o Known health effects are similar to other common molds. o It has been inconclusively associated with more severe health effects in some people. o While there are only a few molds that are truly black, many can appear black. Not all mold that appears to be black is Stachybotrys. Slide 11  The area with water needs to be dried as quickly as possible.  Mold can start to grow in 24 to 48 hours in some climates.  Throw away things like carpet or mattresses, wallboard (drywall), ceiling tiles, insulation, or cardboard boxes that have been wet for more than two days.

Slide 12  Materials such as glass, plastic, and metal can be cleaned and disinfected.  Remove the molds using a non-ammonia soap or detergent. Never mix bleach and ammonia.  Surfaces where all the mold cannot be completely removed should be treated with enough chlorine bleach to keep the surface wet for at least 15 minutes.  Then rinse, and dry as quickly as possible.  Disinfect by applying a solution of 1 cup chlorine bleach to 1 gallon of water.  Keep the bleach solution on the surface for 15 minutes to kill the mold.  Allow the solution to dry naturally. Slide 13  Protect yourself when cleaning up mold. o Wear long sleeves and pants, shoes, and socks. o Wear rubber gloves and eye goggles to protect your hands and eyes. o A respirator is recommended. Suggested masks are N-95, 3M#1860, or TC-21C.  Immediately wash all clothing after completing the mold removal.  Keep small children, the elderly, sick people, and anyone with asthma or allergies away during the clean up. Slide 14 Here are some action steps to reduce mold and moisture problems in your home:  Don’t leave water in drip pans, basements, and air conditioners.  Check the relative humidity in your home. Stop using the humidifier if the relative humidity is more than 50%.  Wipe down the shower walls with a squeegee or towel after bathing or showering.  Cut down on steam in the bathroom while bathing or showering. Run a fan that is vented to the outside or open a window.

 Run a fan vented to the outside when cooking.  Increase air flow in problem areas. Open closet doors and move furniture away from outside walls where mold is growing.  Move your furniture around once in awhile. Slide 15  Keep surfaces clean and dry – wipe up spills and overflows right away.  Store clothes and towels clean and dry – don’t let them stay wet in the laundry basket or washing machine.  If the humidity is high, don’t keep a lot of houseplants.  If you have a dryer, make sure it is vented to the outside.

Slide 16

Slide 17


				
DOCUMENT INFO