worshiped the sun as the god that provided warmth and made the crops grow” Today‚ the sun is not something we worship but something we try to avoid due to the fact that we are aware that it contains two main sources of ultraviolet radiation that is harmful to our bodies. Ultraviolet radiation (UVR) is defined by wavelengths‚ and is divided into different energy levels from shortest to longest wavelength. UVC rays have the shortest wavelength‚ the most energy and fortunately do not penetrate the
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TOP 10 LIST OF UNCONTROLLABLE RISK FACTORS FOR INFECTIOUS DISEASES AIRBORNE DISEASES Regular check-ups / immunization / hygiene Diseases communicated by air i.e.) tuberculosis.flu and etc. RADON Change ventilation system / radon checks According to CDT Minnesota Department of Health (2007)‚ Radon is a radioactive gas - that means it continuously decays and releases radiation. It is produced from minerals in soil‚ such as uranium and radium. Although radon is present throughout the environment
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As a consequence the concentrations of these materials built up in the atmosphere. However (there’s always a however) when the materials reached the stratosphere the were acted on by ultraviolet radiation and broke down releasing chlorine and bromine into the ozone layer. The ozone layer is the earth’s ultraviolet shield. The chemistry is such that the chlorine and bromine attack the ozone‚ reducing it to ordinary oxygen which as no shielding effect from UV-B. The complex chemical reactions allow
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research on CFCs showed that they have long life spans allowing them to resist being washed away in rain. Through the aid of wind‚ CFCs rise up into the stratosphere and into the ozone layer where they decompose into chlorine and bromine‚ from the ultraviolet radiation. These two chemicals are responsible for damaging the ozone layer. Some atmospheric chlorine are caused by natural occurrences such as large fires and volcanic eruptions‚ yet most chlorine in the ozone layer is due to CFCs from man-made
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crystals will differ for each specific drug. 5. What is spectrophotometry? How can this useful in identifying drugs? A spectrophotometry device can emit both UV and infrared light as it measures how a sample either reflects or absorbs. Though ultraviolet spectrophotometry cannot identify a drug‚ infrared spectrophotometry can‚ since the pattern of light is unique to each type of compound. 6. Why are forensic scientists an important part of drugs cases? forensic scientists can use different types
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procedure freezes the age spots with liquid nitrogen so that they gradually flake off‚ but this may take time. During any treatment‚ you will need to wear sunscreen with SPF 15 or higher on the treated area because your skin will be very sensitive to ultraviolet rays. Wearing sunscreen is a good way to prevent age spots that form from exposure to the sun. It is also recommended to wear clothing including a hat that protects your arms‚ shoulders and face from direct sunlight. In most cases‚ age spots are
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As a kid who loved to be outside Gretchen Hoechner was always spending her time outside playing sports and often came home with a red burnt face. By age 11 she was already coming aware of the serious issues with her skin. At age 26 she was finally diagnosed with melanoma when she noticed a mole that didn’t quite look right and quickly went to the dermatologist. It was hard for her to believe that at only age 26 she was dealing with fatal cancer. The one thing that she tries to educate people about
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carcinoma‚ squamous cell carcinoma and melanoma. a) Is skin cancer a concern for you? Why or why not? (Answer in 200 words or less. Send to bulletin board) Yes‚ Everyone has some risk of skin cancer. Most skin cancers are associated with ultraviolet radiation from the sun or tanning beds‚ and many people of color are less susceptible to UV damage thanks to the greater amounts of melanin (the protective pigment that gives skin and eyes their color) darker skin produces. But people of color can
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Tanning: The Sun Has a Dark Side The first indoor tanning beds were developed in 1906‚ by a medical research company named Heraeus. The main purpose of this tanning lamp was medicinal‚ used on patients with calcium deficiency disorders‚ to see if the increased sun light would build stronger bones‚ and help the body produce more calcium. As time progressed‚ it became apparent that Heraeus was onto something big with his invention. In the early 1970 ’s the tanning bed’s use turned from medicinal
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depletion were observed to increase as emissions of halo-carbons increased. CFCs and other contributory substances are referred to as ozone-depleting substances (ODS). Since the ozone layer prevents most harmful UVB wavelengths (280–315 nm) of ultraviolet light (UV light) from passing through theEarth’s atmosphere‚ observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs‚ halons‚ and other ozone-depleting
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