You may feel healthy.... but you're sitting in front of a big toxic timebomb when you compute.
Your computer contains some of the most dangerous chemicals on earth, and they are building up at a location near you!
Manufacturers have sealed the toxins inside, but the dumping of obsolete PCs over the years, and crushing them in landfills, will let dangerous substances seep out into surrounding land, air and water.
In the US, according to the Safety Council, 60 million PCs are already buried in landfills, and 138,000 computers per day will become obsolete - and so ready for dumping - between 2004 and 2009.
Just in the UK, up to 2 million Pentium PCs are dumped each year.
Also, any disaster is likely to release vast quantities of poisonous material. (One estimate of 9/11 was that the personal computers destroyed contained 200,000 pounds of lead!)
How much escaped into the outside world? Judging from onsite readings in the following weeks- a LOT.
A computer is environmentally expensive to make. It will use 10 times its weight in fossil fuels plus a tonne of purified water. Polluting substances (at low levels)are also discharged into rivers' lakes and the air during every stage of manufacture.
However savage competition increasing repair costs, and regular model upgrading has meant manufacturers have made little effort to recycle, as pc prices - and hence profit margins - have stayed low.
So what poisons are there in your average model? The main ones are:
LEAD
Consumer electronics make up 40% of lead continually dumped (until recently) into landfills and scrap yards. An average computer uses 4 pounds of Lead, i.e., 6.2% of the total weight of the PC.
The main uses of Lead in Consumer Electronics are for soldering of printed circuit boards (PCBs) and other electronic components, as well as glass panels in computer monitors (cathode ray tubes), to shield you from radiation. Typically a screen can contain 2 to 5 grams of lead!
Lead is one of the few natural substances not essential to life. At even very low levels, lead has been shown to cause health problems.
Lead can damage the central and peripheral nervous systems, blood system and kidneys in humans. It accumulates in the environment and has serious damaging effects on plants, animals and microorganisms. The difficulty with lead is that once it is mined from the earth, there is no commercially acceptable way to destroy or make it harmless - you can only try recycling it The recyclable efficiency of Lead is around a low 5%.
CADMIUM
Cadmium occurs in certain electronic components such as resistors, infrared detectors, semiconductors, older cathode ray tubes, in batteries and as a plastic stabilizer. Cadmium is an extremely toxic metal, and may damage human health irreversibly. Cadmium and cadmium compounds concentrate in the human body, in particular in the kidneys. Cadmium is absorbed mainly through breathing - very dangerous, high levels can kill! but also enters as food, and can easily accumulate in amounts that cause symptoms of poisoning.
Again like lead, cadmium has accumulated via the dumping of old computers, and has become a hazard to us all.
BARIUM
Barium is used in the front panel of a CRT to protect users from radiation. Barium can be released through the air, water, and soil, and is also accumulated in fish. Studies have shown that short-term exposure to barium (through ingestion) has resulted in brain swelling, muscle weakness, and damage to the heart, liver, and spleen.
MERCURY
22 % of the yearly world consumption of mercury is used in electrical and electronic equipment. In PCs you'll find mercury in PWBs, batteries and the newer liquid crystal LCD flat screens that are replacing the older bulkier monitors, with their cathode ray tubes, ( whose screens contained lead!)
Mercury is a powerful poison. Published research has shown that mercury, even in small amounts, is more toxic than lead, cadmium and even arsenic! Although mercury is just 0.0022% of the total weight of the computer, it is a big health hazard.
And we haven't even touched on other hazardous and polluting substances like Tin, Arsenic, Beryllium, hexavalent Chromium, Selenium,arsenic,manganese, Silver. Plus stabilisers and additives.
Polybrominated flame retardants used on cables and circuit boards may damage sexual development and growth, and accumulate in human breast milk
If computer materials are 'destroyed' by commercial incineration, hazardous metals and cancer causing organics like dioxins can be discharged into the air.
Stricter laws are being gradually introduced worldwide controlling the dumping and recycling of computers, although the present 'dumping' of computer waste by the West on developing countries has now become a major scandal. We healthy people are making people overseas ill dismantling our PCs.
The main aim behind PC disposal laws worldwide has been 'make the polluter pay', So manufacturers will be expected to pay the direct costs.
(But don't be too amazed if you find your new PC suddenly costs $60 more!)
The European Union has led the way with a series of Directives putting strict limits on the hazardous content of a PC sold in member countries and how all PCs are disposed of - sellers will have to take them back and arrange recycling.
The US has so far adopted a more piecemeal approach, although states as far apart as California and Alaska are enforcing strict controls on dumping and disposal of electronic equipment.
What can YOU do?
- Check your local regulations if you want to dispose of your computing equipment.
- Give your computer away to a registered charity or organisation that can use it. (Make sure it's in good working order before you try this!)
- Use a registered specialist disposal firm to remove and recycle old computers, don't break the law and pollute the environment!
- In future, before you buy a new PC, consider buying a recycled computer, or upgrade your old one.
In UK, Industry Council for Electronic Equipment Recycling (ICER) http://www.icer.org.uk/
Good luck, and healthy living and computing in 2006 and beyond!
Bugs in machines go back a long way.
In the 1900s, bugs were "little faults and difficulties" in new devices, according to the Random House Historical Dictionary of American Slang.
Thomas Alva Edison told how he stayed up two nights in 1889 trying to fix a 'bug' in his new cylinder phonograph.
Though some still say say the real modern usage of the word comes from the cockroaches, moths and creepies that used to infest the old room size computers, and cause malfunctions whenever they shorted the electrics...
Nowadays, PCs have got a lot smaller, but STILL harbour a stack of unwanted life.
It's amazing that people who believe in cleanliness health and fitness can spend hours working at a dirty PC.
Where does that dirt come from? People, mostly. Coughing, shedding flakes of skin, and spilling drinks and crumbs and bits on the keyboard, mouse, casing and mat.
Ever noticed a clear sticky, filmy substance on your desk or on parts of your computer?. It is most likely to be BIOFILM - bacteria and fungi growing out of what's been spilled..
Viruses dumped on the PC by coughs and sneezes can easily travel from person to person.
Inside your PC, the cooling fan sucks in and deposits dust inside the casing - creating a great home for mites, bacteria, molds and fungi. All these (and their waste products) can cause asthma and allergy type reactions.
Cockroaches and flies are quickly drawn by most rotting matter, and spread germs, smell and allergens. There's a recorded case of fly maggots crawling out of a keyboard...
Apart from health issues, pests and dirt in a PC can still cause shorting, and the dust buildup can cause overheating, programs crashing and system failure.
That means downtime, disruption and expensive repairs. Possibly even permanent loss of valuable data.
While we can't live in a sterile antiseptic world, can you afford NOT to sanitize your PC?
Here are the Lucky 13+ Top PC Cleaning Tips :-
1. Turn your computer off, and unplug it before you start to clean it. Then electrocution isn't an option. (Also, turning off at night saves electricity, and creates a cooler environment - discouraging nasties breeding, and things decaying.)
2. Vacuum the keyboard with a suitable extension, or a special PC vacuum. It's a quick way of sucking out hairs, dust and debris and can also be used on the computer's outer casing where there is no risk of damage.
3. Wash your hands with a bacteriological handwash before AND after using a keyboard.
4. Pure water is one of the best cleaning fluids. Many cleaning solvents can stain or attack the plastic parts of your computer and some people are allergic to certain fluids. Take care with alcohol-based wipes, because they can erode the coating on TFT monitors.
5. If you use proprietary PC cleaning materials, only use them in the ways and places intended, wear disposable gloves, and read any instructions before starting.
6. Never splash or spray any liquid directly onto the computer or any computer component. Instead, spray it onto a CLEAN lint free cloth, then lightly rub your machine clean.
7. Dont try cleaning the insides of your PC. The static electricity you create can damage the circuits. Leave delicate stuff to professionals like PC technicians if it must be done at all.
8. Use a cloth (rather than something more abrasive like a paper towel) to wipe components. Use fresh cotton buds on the difficult-to-reach areas of your computer.
9. Be careful when cleaning around the back of your machine - it's easy accidentally disconnecting a plug, then finding certain peripherals like the mouse or printer arent working when you switch the machine back on!
10. Try to avoid smoking at or near the computer, but if you can't quit the habit, ensure you clean the machine more regularly- every three months is best rather than every five for a non-smoker.
11.Pests love spilled food and liquids - by not eating or drinking at your PC, you can dramatically reduce any health risks.
12. Get rid of clutter regularly. Junk attracts dirt and pests.
13. Do your PC cleaning regularly - not just when there's been a spill, or you cant find your mouse in the dust!
Keeping a clean computer workstation will help keep your computer healthy, and you healthy computing!
Michael Madigan has sinced written about articles on various topics from Personal Desktop, Stress Management and Information Technology. Mick Madigan lives in the UK and has a continual interest in healthy computing.He has published a fully detailed guide on how computing will harm you - and how you can avoid it - at:. Michael Madigan's top article generates over 3600 views. to your Favourites.