UV Light
Some sunlight is beneficial but too much sunlight can be dangerous.
These dangerous side effects from the sun are caused by UV light. There
are two types of unhealthy UV light, one is called UVA and the other
UVB. Both cause skin related damage, such as premature aging, cataracts,
allergies, and skin cancer.
A UV light index was developed in 1994. The US Environmental Protection
Agency (EPA) and the National Weather Service (NWS) have developed
this index to lower the risk of bad health effects on Americans. Recently
a newer global scaled index has been devised. Numbers from 1 to 11
plus, are used to indicate low to extreme dangers of UV light. A >2
indicates low exposure, while a 3 to 5 range indicates moderate exposure.
The EPA and NWS have cautioned against overexposure asking that individuals
protect themselves whenever the UV light is above the 5 range.
The ozone layer has been decreasing around the earth, giving us less
protection from the suns harmful UV light rays. The most common problem
from over exposure to UV light can cause sunburns. Protecting yourself
from these harmful rays is important. Tanning exposes you to UV light,
whether you tan in the sunlight or use a tanning bed. Knowing the risks
of sunlight exposure can help you take better care of your skin and
health.
Clouds provide little or no protection from UV light. Snow, water,
and sand all reflect UV light putting you at even a greater risk for
skin damage. There are several ways you can protect your self from
this harmful light. Check the news for current UV light reports. Stay
inside if the range is in the high to extreme range. Apply sunscreen
with a protection factor of at least 15 or higher. Wear hats with wide
brims and sunglasses. Young children are at a great risk of UV light
exposure and should be kept out of the sun.