Which of the following must you do if a suspects computer is discovered in an area that may contain toxic materials?

Know your electronics and their chemicals

Devices in your home, like phones, computers, tablets, TV sets, game consoles and smart kitchen appliances, are made of hundreds of components and thousands of chemicals.

Some of the chemicals in electronics are toxic – substances like heavy metals, flame retardants, antistatic agents or plastic softeners, for example. But the key question is – are you exposed to them? If you use the device in the way it is intended to be used, then your exposure will be very low. For example, the circuit board of your mobile phone doesn’t normally touch your skin.

But there are some hazardous chemicals, such as certain phthalates and some flame retardants, which can be released from electronic devices into the air and dust in your home. You also need to make sure that you dispose of them correctly – otherwise the toxic substances can be released into your environment.

EU chemicals laws aim to limit or eliminate the use of dangerous chemicals in electronics where safer alternatives exist. Companies are also encouraged to substitute dangerous chemicals with safer alternatives. Companies may get exemptions and authorisations to use certain dangerous chemicals in electronics, usually during a limited time period.

Heavy metals

Heavy metals are currently essential in most electronic devices, although innovative companies are always looking for safer alternatives. Here are some typical examples:

• Cadmium – used in rechargeable computer batteries, contacts and switches.
• Mercury – used in the liquid crystal displays (LCDs) of mobile phones and flat screen computer monitors as well as in switches, batteries and fluorescent lamps.
• Lead – used in the cathode ray tubes (CRTs) found in computer and TV screens.
• Hexavalent chromium – used in the production of different metal housings.
• Nickel – used in some mobile phones’ circuit boards and soldering.
• Lead and cadmium – used in the rechargeable batteries in game consoles and electric toys.

Flame retardants

Flame retardants are used to prevent or slow down the progress of a fire. One of their effects is to give you more time to leave the site in case of a fire. They are therefore pretty robust substances and do not easily biodegrade. They remain in the natural environment for a long time. Flame retardants can migrate from your electronic products into the dust in your house. New electronic devices can also release flame retardants when they get hot.

Tips for safer use

• Look for products with an official ecolabel. For example, TV sets, printers, laptops or computers carrying the EU ecolabel have been produced with the smallest possible use of dangerous chemicals.
• Look for products with CE marking. This means that the manufacturer guarantees that the product fulfils the safety requirements set by the EU.
• Use the products for the purpose and in the ways described in the producer’s instructions.
• Use your right to ask in the shop if your electronic device contains any “substances of very high concern” above a certain limit. By law, the retailer or the producer has to inform you if the product contains any of those substances and how to use it safely.
• Air your rooms regularly and try to avoid the build-up of dust in your home.
• Do not allow small children to chew on or unscrew electronics.

Recycle electronics carefully

The toxic materials in your electronic devices can harm the environment if you don’t dispose of them carefully.

Hand in your old electrical appliances and electronic waste to your local environmental waste or recycling station to avoid leakage of harmful substances into the environment.

Read more

• Articles and chemical products - Swedish Chemicals Agency
• What do we mean by “hazardous chemicals”? - Think before you buy project

On this page:

• Introduction
• Sources
• Health Effects
• Levels in Homes
• Steps to Reduce Exposure
• Standards or Guidelines
• Additional Resources

Introduction

Volatile organic compounds (VOCs) are emitted as gases from certain solids or liquids. VOCs include a variety of chemicals, some of which may have short- and long-term adverse health effects. Concentrations of many VOCs are consistently higher indoors (up to ten times higher) than outdoors. VOCs are emitted by a wide array of products numbering in the thousands.

Organic chemicals are widely used as ingredients in household products. Paints, varnishes and wax all contain organic solvents, as do many cleaning, disinfecting, cosmetic, degreasing and hobby products. Fuels are made up of organic chemicals. All of these products can release organic compounds while you are using them, and, to some degree, when they are stored.

EPA's Office of Research and Development's "Total Exposure Assessment Methodology (TEAM) Study" (Volumes I through IV, completed in 1985) found levels of about a dozen common organic pollutants to be 2 to 5 times higher inside homes than outside, regardless of whether the homes were located in rural or highly industrial areas. TEAM studies indicated that while people are using products containing organic chemicals, they can expose themselves and others to very high pollutant levels, and elevated concentrations can persist in the air long after the activity is completed.

Sources of VOCs

Household products, including:

• paints, paint strippers and other solvents
• wood preservatives
• aerosol sprays
• cleansers and disinfectants
• moth repellents and air fresheners
• stored fuels and automotive products
• hobby supplies
• dry-cleaned clothing
• pesticide

Other products, including:

• building materials and furnishings
• office equipment such as copiers and printers, correction fluids and carbonless copy paper
• graphics and craft materials including glues and adhesives, permanent markers and photographic solutions.

Health Effects

Health effects may include:

• Eye, nose and throat irritation
• Headaches, loss of coordination and nausea
• Damage to liver, kidney and central nervous system
• Some organics can cause cancer in animals, some are suspected or known to cause cancer in humans.

Key signs or symptoms associated with exposure to VOCs include:

• conjunctival irritation
• nose and throat discomfort
• headache
• allergic skin reaction
• dyspnea
• declines in serum cholinesterase levels
• nausea
• emesis
• epistaxis
• fatigue
• dizziness

The ability of organic chemicals to cause health effects varies greatly from those that are highly toxic, to those with no known health effect.

As with other pollutants, the extent and nature of the health effect will depend on many factors including level of exposure and length of time exposed. Among the immediate symptoms that some people have experienced soon after exposure to some organics include:

• Eye and respiratory tract irritation
• headaches
• dizziness
• visual disorders and memory impairment

At present, not much is known about what health effects occur from the levels of organics usually found in homes.

• EPA's Office of Drinking Water Regulations
  • List of Contaminants and their MCLs: Organic Chemicals
• U.S. Geology Survey's National Water-Quality Assessment (NAWQA) Program
  • Information on VOCs in Water Sources

Levels in Homes

Studies have found that levels of several organics average 2 to 5 times higher indoors than outdoors. During and for several hours immediately after certain activities, such as paint stripping, levels may be 1,000 times background outdoor levels.

Steps to Reduce Exposure

• Increase ventilation when using products that emit VOCs.
• Meet or exceed any label precautions.
• Do not store opened containers of unused paints and similar materials within the school.
• Formaldehyde, one of the best known VOCs, is one of the few indoor air pollutants that can be readily measured.
  • Identify, and if possible, remove the source.
  • If not possible to remove, reduce exposure by using a sealant on all exposed surfaces of paneling and other furnishings.
• Use integrated pest management techniques to reduce the need for pesticides.
• Use household products according to manufacturer's directions.
• Make sure you provide plenty of fresh air when using these products.
• Throw away unused or little-used containers safely; buy in quantities that you will use soon.
• Keep out of reach of children and pets.
• Never mix household care products unless directed on the label.

Follow label instructions carefully.

Potentially hazardous products often have warnings aimed at reducing exposure of the user. For example, if a label says to use the product in a well-ventilated area, go outdoors or in areas equipped with an exhaust fan to use it. Otherwise, open up windows to provide the maximum amount of outdoor air possible.

Throw away partially full containers of old or unneeded chemicals safely.

Because gases can leak even from closed containers, this single step could help lower concentrations of organic chemicals in your home. (Be sure that materials you decide to keep are stored not only in a well-ventilated area but are also safely out of reach of children.) Do not simply toss these unwanted products in the garbage can. Find out if your local government or any organization in your community sponsors special days for the collection of toxic household wastes. If such days are available, use them to dispose of the unwanted containers safely. If no such collection days are available, think about organizing one.

Buy limited quantities.

If you use products only occasionally or seasonally, such as paints, paint strippers and kerosene for space heaters or gasoline for lawn mowers, buy only as much as you will use right away.

Keep exposure to emissions from products containing methylene chloride to a minimum.

Consumer products that contain methylene chloride include paint strippers, adhesive removers and aerosol spray paints. Methylene chloride is known to cause cancer in animals. Also, methylene chloride is converted to carbon monoxide in the body and can cause symptoms associated with exposure to carbon monoxide. Carefully read the labels containing health hazard information and cautions on the proper use of these products. Use products that contain methylene chloride outdoors when possible; use indoors only if the area is well ventilated.

Keep exposure to benzene to a minimum.

Benzene is a known human carcinogen. The main indoor sources of this chemical are:

• environmental tobacco smoke
• stored fuels
• paint supplies
• automobile emissions in attached garages

Actions that will reduce benzene exposure include:

• eliminating smoking within the home
• providing for maximum ventilation during painting
• discarding paint supplies and special fuels that will not be used immediately

Keep exposure to perchloroethylene emissions from newly dry-cleaned materials to a minimum.

Perchloroethylene is the chemical most widely used in dry cleaning. In laboratory studies, it has been shown to cause cancer in animals. Recent studies indicate that people breathe low levels of this chemical both in homes where dry-cleaned goods are stored and as they wear dry-cleaned clothing. Dry cleaners recapture the perchloroethylene during the dry-cleaning process so they can save money by re-using it, and they remove more of the chemical during the pressing and finishing processes. Some dry cleaners, however, do not remove as much perchloroethylene as possible all of the time.

Taking steps to minimize your exposure to this chemical is prudent.

• If dry-cleaned goods have a strong chemical odor when you pick them up, do not accept them until they have been properly dried.
• If goods with a chemical odor are returned to you on subsequent visits, try a different dry cleaner.

Standards or Guidelines

No federally enforceable standards have been set for VOCs in non-industrial settings. To learn more about VOC's, including current guidelines or recommendations set by various organizations for formaldehyde concentrations, visit Lawrence Berkeley National Laboratory’s Indoor Air Quality Scientific Findings Resource Bank.

Additional Resources

• ASHRAE: Indoor Air Quality Guide, Strategies 5.1 and 5.2

• ASHRAE Standard 189.1-2014, Sections 10.3.1.4 and 10.3.1.4 (b) 1

• California Department of Public Health: Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers (Emission Testing Method for California Specification 01350)

• California Title 17 ATCM to Reduce Formaldehyde Emissions from Composite Wood Products

• Carpet and Rug Institute: Green Label Plus

• Collaborative for High Performance Schools: High Performance Products Database

• EPA: Formaldehyde Standards for Composite Wood Products

• Indoor Air Fact Sheet No. 4 (revised) - Sick Building Syndrome

  • Explains the term "sick building syndrome" (SBS) and "building related illness" (BRI). Discusses causes of sick building syndrome, describes building investigation procedures and provides general solutions for resolving the syndrome.
• Indoor Air Pollution: An Introduction for Health Professionals
  • Assists health professionals (especially the primary care physician) in diagnosis of patient symptoms that could be related to an indoor air pollution problem. Addresses the health problems that may be caused by contaminants encountered daily in the home and office. Organized according to pollutant or pollutant groups such as environmental tobacco smoke, VOCs, biological pollutants and sick building syndrome, this booklet lists key signs and symptoms from exposure to these pollutants, provides a diagnostic checklist and quick reference summary, and includes suggestions for remedial action. Also includes references for information contained in each section. This booklet was coauthored with the American Lung Association, the American Medical Association and the U.S. Consumer Product Safety Commission.

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