H1N1 INFLUENZA PREVENTION

IF YOU VISIT THIS BLOG THAT MEANS YOU CARE & LOVE THIS WORLD
NOW THE H1N1 FLU VIRUS EVEN MUTATED
VIRUSES, BACTERIA ARE THREATENING OUR LIVE EVEN OUR LOVING
LIVES IN ALL AGE GROUPS.

MY SUGGESTION IS TO APPLY STERILIZATION OUR
SURROUNDING BREATHING AIR, WATER EVEN HARD OBJECTS WHICH THE
H1N1 INFLUENZA STAY TO ATTACK THE INNOCENT LIFE ON EARTH

I STRONGLY RECOMMEND THAT ALL OF US SHOULD USED

ULTRA VIOLET RAY TO ERADICATE
H1N1 INFLUENZA VIRUS
BUT WE MUST IMPLEMENT
ADOPTION PROGRAMME
ONE PERSON NEED TO BUY INSTALL, SERVICING/ FOLLOW UP TO YOUR
ADOPTED AN ULTRAVIOLET LIGHTS/ BULBS AT ALL HIGH RISK AREA
THIS WILL NOT BURDEN TO ANYONE/AUTHORITIES.

BUDGET AND EFFECTIVE STERILIZATION:
BELONGS TO
THE ULTIMATE
ULTRA VIOLET RAY

ULTRAVIOLET LIGHTS/ BULBS OR EVEN FIBER
OPTIC FIXTURE AT AIRPORT, HOSPITAL EVEN PUBLIC AREA TO KILL
NOT ONLY H1N1 VIRUS EVEN FUTURE ANY DEADLY ORGANISMS.

PLEASE REFER TO Germicidal
lamp-Wikipedia,the free encyclopededia

Ultraviolet Waves:
Ultraviolet (UV) light has shorter
wavelengths than visible light. Though these waves are
invisible to the human eye.

Scientists have divided the ultraviolet
part of the spectrum into three regions: the near
ultraviolet, the far ultraviolet, and the extreme
ultraviolet. The three regions are distinguished by how
energetic the ultraviolet radiation is, and by the
"wavelength" of the ultraviolet light, which is related to
energy.

NATURAL SOURCE from the SUN:
Our Sun emits light at all the different
wavelengths in electromagnetic spectrum, but it is
ultraviolet waves that are responsible for causing our
sunburns.

Though some ultraviolet waves from the
Sun penetrate Earth's atmosphere, most of them are blocked
from entering by various gases like Ozone.

Some days, more ultraviolet waves get
through our atmosphere. Scientists have developed a UV index
to help people protect themselves from these harmful
ultraviolet waves.

How do we "see" using Ultraviolet light?
It is good for humans that we are protected from getting
too much ultraviolet radiation, but it is bad for
scientists, doctors, nurses...................need not worry all of them known how to protect themselves. Nobodies known everything if you are having any suggestion please send a mail to
ttkhordr@yahoo.com

The application of UVGI to sterilization
has been an accepted practice since the mid-20th century. It
has been used primarily in medical sanitation and sterile
work facilities. Increasingly it was employed to sterilize
drinking and waste water, as the holding facilities were
enclosed and could be circulated to ensure a higher exposure
to the UV. In recent years UVGI has found renewed
application in air sensitization.

Efficacy support by:
Ultraviolet germicidal irradiation (UVGI)
is a sterilization method that uses ultraviolet (UV) light
at sufficiently short wavelength to break down
micro-organisms. It is used in a variety of applications,
such as food, air and water purification. UV has been a
known mutagen at the cellular level for more than 100 years.
The 1903 Nobel Prize for Medicine was awarded to Niels
Finsen for his use of UV against tuberculosis.

Mechanism:
UVGI utilized the short wavelength of UV
that is harmful to forms of life at the micro-organic level.
It is effective in destroying the nucleic acids in these
organisms so that their DNA is disrupted by the UV radiation
by cutting the oxygen supply at thier DNA. This removes
their reproductive capabilities and kills them.

The wavelength of UV that causes this
effect is rare on Earth as its atmosphere blocks it. Using a
UVGI device in certain environments like circulating air or
water systems creates a deadly effect on micro-organisms
such as pathogens, viruses and molds that are in these
environments. Coupled with a filtration system, UVGI can
remove harmful micro-organisms from these environments.

How UVGI Works
Ultraviolet light is electromagnetic
radiation with wavelengths shorter than visible light. UV
can be separated into various ranges, with short range UV
(UVC) considered “germicidal UV.” At certain wavelengths
UV is mutagenic to bacteria, viruses and other
micro-organisms. At a wavelength of 2,537 Angstroms (254
nm)[4] UV will break the molecular bonds within
micro-organisms DNA, producing thymine dimers in their DNA
thereby destroying them, rendering them harmless or
prohibiting growth and reproduction. It is a process similar
to the UV effect of longer wavelengths (UVB) on humans, such
as sunburn or sun glare. Micro-organisms have less
protection from UV and cannot survive prolonged exposure to
it.

A UVGI system is designed to expose
environments such as water tanks, sealed rooms and forced
air systems to germicidal UV. Exposure comes from germicidal
lamps that emit germicidal UV electromagnetic radiation at
the correct wavelength, thus irradiating the environment.
The forced flow of air or water through this environment
ensures the exposure.


EFFECTIVENESS:
UVGI is a highly effective method of
destroying microorganisms. Since the Earth’s atmosphere
absorbs most of the UV from the sun, germicidal UV is very
rare in all circumstances. When concentrated in a closed
environment such as a water holding tank or duct system it
is lethal over time to all micro-organisms.

The effectiveness of germicidal UV in
such an environment depends on a number of factors: the
length of time a micro-organism is exposed to UV, power
fluctuations of the UV source that impact the EM wavelength,
the presence of particles that can protect the
micro-organisms from UV, and a micro-organism’s ability to
withstand UV during its exposure.

In many systems redundancy in exposing
micro-organisms to UV is achieved by circulating the air or
water repeatedly. This ensures multiple passes so that the
UV is effective against the highest number of
micro-organisms and will irradiate resistant micro-organisms
more than once to break them down.

The effectiveness of this form of
sterilization is also dependent on line-of-sight exposure of
the micro-organisms to the UV light. Environments where
design creates obstacles that block the UV light are not as
effective. In such an environment the effectiveness is then
reliant on the placement of the UVGI system so that
line-of-sight is optimum for sterilization.

A separate problem that will affect UVGI
is dust or other film coating the bulb, which can lower UV
output. Therefore bulbs require annual replacement(6000 TO
10000 hours)/use spectrometer to verified the effective
254nm.Scheduled cleaning to ensure effectiveness. The
lifetime of germicidal UV bulbs varies depending on design.
Also the material that the bulb is made of can absorb some
of the germicidal rays.

Lamp cooling under airflow can also lower
UV output, thus care should be taken to shield lamps from
direct airflow via parabolic reflector. Or add additional
lamps to compensate for the cooling effect.

Increases in effectiveness and UV
intensity can be achieved by using reflection. Aluminum has
the highest reflectivity rate versus other metals and is
recommended when using UV.
For more details refer toGermicidal lamp-Wikipedia,the free encyclopededia

CREATING UVGI:
A 9 W germicidal lamp in a modern compact
fluorescent lamp form factor Main article: Germicidal lamp
Germicidal UV is delivered by a mercury-vapor lamp that
emits UV at the germicidal wavelength. Mercury vapors emits
at 254 nm. Many germicidal UV bulbs use special transformers
to ensure even electrical flow to the bulbs so the correct
wavelength is maintained. Since germicidal UV has a narrow
bandwidth, power fluctuations will render intended
irradiating environments ineffective. In some cases, UVGI
electrode's lamps can be energized with microwaves, giving
very long stable life and other advantages. This is known as
'Microwave UV.'

There are several different types of
germicidal lamps: - Low-pressure UV lamps offer high
efficiencies (approx 35% UVC) but lower power, typically 1
W/cm³ power density. - Amalgam UV lamps are a high-power
version of low-pressure lamps. They operate at higher
temperatures and have a lifetime of up to 16,000 hours.
Their efficiency is slightly lower than that of traditional
low-pressure lamps (approx 33% UVC output) and power density
is approx 2-3 W/cm³. - Medium-pressure UV lamps have a
broad and pronounced peak-line spectrum and a high radiation
output but lower UVC efficicncy of 10% or less. Typical
power density is 30 W/cm³ or greater.

Depending on the quartz glass used for
the lamp body, low-pressure and amalgam UV lamps emit light
at 254 nm and 185 nm (for oxidation).
185 nm light is used to generate ozone.

Air purification:
UVGI can be used to sterilize air that
passes UV lamps via forced air. Air purification UVGI
systems can be freestanding units with shielded UV lamps
that use a fan to force air past the UV light or we can
creat negative pressure by using ezoz fan.

Other systems are installed in forced air
systems so that the circulation for the premises moves
micro-organisms past the lamps. Key to this form of
sterilization is placement of the UV lamps and a good
filtration system to remove the dead micro-organisms.

For example, forced air systems by design
impede line-of-sight, thus creating areas of the environment
that will be shaded from the UV light. However, a UV lamp
placed at the coils and drainpan of cooling system will keep
micro-organisms from forming in these naturally damp
places.

The MOST EFFECTIVE METHOD for treating
the air rather than the coils is in-line duct systems, these
systems are placed in the center of the duct and parallel to
the air flow so the contamined air will get more time for
sterelization.

Why we cannot over come the out break of
H1N1 flu virus. I felt this is due to advance transport
systems, aircondition confined area example: Airport,
restoran, shopping mall, inhouse car park, all public toilet etc; now is the time to install UV
germicidal lamp at all the danger zone in advance to stop
the wide spread H1N1 influenza virus.

Water purification:
Water purification via UVGI is used in
most water sterilization processes, such as purification,
detoxification and disinfection. Its use in wastewater
treatment is replacing chlorination due to that chemical’s
toxic by-products. A disadvantage is that water treated by
chlorination is resistant to reinfection, where UVGI water
must be transported and delivered in such a way as to avoid
contamination. Individual wastestreams to be treated by UVGI
must be tested to ensure that the method will be effective
due to potential interferences such as suspended solids,
dyes or other substances that may block or absorb the UV
radiation.
"UV units to treat small batches (1 to several liters) or
low flows (1 to several liters per minute) of water at the
community level are estimated to have costs of 0.02 US$ per
1000 liters of water, including the cost of electricity and
consumables and the annualized capital cost of the unit."
Better still fibre optic UVGI will give best results.

For easy understanding:
Ultraviolet Sterilizers are often used in
aquaria and ponds to help control unwanted microorganisms in
the water. Continuous ultraviolet sterilization of the
aquarium water eliminates single-cell algae and thereby
increase water clarity. UV radiation also ensures that
disease-causing pathogens cannot reproduce, thus decreasing
the possibility of a disease outbreak in an aquarium.

In an aquarium or pond application an
ultraviolet sterilizer is typically a small housing with
fittings for tubing that allows the water to flow through
the sterilizer on its way to or from a separate external
filter. Within the sterilizer, water flows over the
ultraviolet light source, usually through a baffle system
that lengthens the time during which the water is exposed to
the radiation.

Laboratory hygiene:
UVGI is often used to sterilize equipment
such as safety goggles, instruments, pipettors, and other
devices. Lab personnel also sterilize glassware and
plasticware this way. Microbiology laboratories use UVGI to
sterilize surfaces inside biological safety cabinets
("hoods") between uses.

Food and beverage protection:
requiring that virtually all fruit and vegetable juice
producers follow authorities controls, and mandating a 5-log
reduction in pathogens, UVGI has seen some use in
sterilization of fresh juices such as fresh-pressed apple
juice.

Foul smelling area:
UVGI lamps are used to erase the stored
information held in EPROMS in times of the order of just
10's of seconds. Longer wavelength UV-B or UV-A lamps can
also be used, but the erase time is considerably greater.
For recycle purposes no more air freshner containers, no
more allergy problems by using ULTRA VIOLET LIGHTS/ BULBS.

POTENTIAL DANGERS:
At certain wavelengths (including UVC) UV
is harmful to humans and other forms of life. In most UVGI
systems the lamps are shielded or are in environments that
limit exposure, such as a closed water tank or closed air
circulation system, often with interlocks that automatically
shut off the UV lamps if the system is opened for access by
human beings. Limited exposure mitigates the risk of
danger.

SKIN:
In human beings, skin exposure to
germicidal wavelengths of UV light can produce sunburn and
(in some cases) skin cancer.

EYE:
Exposure of the eyes to this UV radiation
can produce extremely painful inflammation of the cornea and
temporary or permanent vision impairment, up to and
including blindness in some cases. UV can damage the retina
of the eye.

Refer from:
The United States Environmental
Protection Agency designated .05 parts per million (ppm) of
ozone to be a safe level. Lamps designed to release UVC and
higher nanometers are doped so that any UV light below 254nm
will not be released, thus ozone is not produced. A full
spectrum lamp will release all UV wavelengths and will
produce ozone as well as UVC, UVC, and UVA. (The ozone is
produced when UVC hits oxygen molecules, and so is only
produced when oxygen is present.)

UV-C radiation is able to break-down
chemical bonds. This leads to rapid ageing of plastics
(insulations, gasket) and other materials. Note that
plastics sold to be "UV-resistant" are tested only for UV-B,
as UV-C doesn't normally reach the surface of the Earth.
When UV is used near plastic, rubber, or insulations care
should be taken to shield said components. Metal tape or
aluminum foil will suffice. UVC light will breakdown plastic
components in ice machines.

I THINK MOST PROFESIONALS WILL AGREED
THAT THE BENIFITS FROM ULTRA VIOLET GERMICIDAL LIGHTS IS
GREATER THAN RISK, WE SHOULD USED THE UVGI WITH WARNING
& GUILDLINE FROM RADIATION DEPARTMENT/ PREVENTION
ADVISORIES BOARD TO EDUCATE USERS AS THIS WILL TAKE HARDLY 5
MINUTES TO EDUCATE THE USERS/ MCQ TEST, MAKE USE OF THE UVGI
PRODUCTS HOT LINE TO EDUCATE THE USERS OR FUTURE INFOMATIONS
TO BE ANSWER BY THE PRODUCTION COMPANY FROM ALL OVER THE
WORLD.

Do you know how many human in this world
exposed to UVGI without proper guarded guideline, please list them
E-MAIL to:
http://www.blogger.com/post-edit.g?blogID=2641785552522477696&postID=7116828228884689903
so I can work up for public awareness.

YOURS TRULY,
DR. KHOR TUAN TATT
E-MAIL: http://www.blogger.com/post-edit.g?blogID=2641785552522477696&postID=7116828228884689903
DATE:21-06-2009