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What is the RoHS?

Tricia Christensen
Updated Jun 04, 2024
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The RoHS is an acronym for the Restriction on Hazardous Substances, a guideline first established by the European Union in 2002. In 2007, the RoHS becomes law in all countries belonging to the EU and will restrict the use and disposal of products containing mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and most importantly lead. Additionally, the RoHS will follow guidelines when trading with other countries and will purchase no products containing more than .1% of the listed substances.

Not all materials containing these substances are outlawed in the RoHS text. The guidelines for the purchase and disposal of materials apply specifically to lighting, computer and IT equipment, household appliances, toys, and sports equipment. Particularly with household equipment, lighting, and toys, disposal will depend upon the compliance of consumers and will be harder to regulate. Specific guidelines for disposal of listed materials are contained in another document, the WEEE, or Waste from Electrical and Electronic Equipment.

One purpose of the RoHS is to eliminate toxic substances from unprotected waste areas where they can pollute drinking water and air supply. Sometimes called the "lead law," the RoHS particularly concerns itself with the levels of lead that appear in the drinking supply. High levels of lead exposure can lead to hearing problems, reduced IQ and damage to the nervous system. Young children are particularly at risk, but even in adults, lead poisoning can result in kidney damage, abdominal pain and cramping, seizures, coma, and death.

By requiring manufacturers to find substitutions for components containing these substances, the RoHS hopes to maintain a more "green friendly" environment. Though the intentions are admirable, some notable exceptions to the use of these chemicals are a cause of concern among more stringent environmentalists. Ceramic devices, high melting point solders, and glass in fluorescent tubes all contain lead and are exempt from the rules. Some lamps containing mercury are also exempt in the European guidelines, as are batteries containing mercury or lead.

Since the RoHS requires companies trading with Europe to follow these guidelines, many other countries have adopted their own RoHS standards. California is the first state in the US to adopt an RoHS law. China's law is by far the most rigid, allowing very few exemptions. As its growing economy makes trading with China so advantageous, China's RoHS may ultimately change RoHS standards and exemptions set in other countries.

All companies bound by RoHS standards or trading with countries that employ them are now faced with the task of complying with these guidelines. In turn, an entire industry has grown up around the task of helping companies become compliant with the new laws. Some production must be completely rethought to exclude the use of certain chemicals, and testing of safer chemicals is underway to replace existing hazardous ones. In any country, adoption of the RoHS represents a progression in environmentally friendly thinking, and a step forward in making the world a little safer for all of us.

All Things Nature is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Tricia Christensen
By Tricia Christensen
With a Literature degree from Sonoma State University and years of experience as a All Things Nature contributor, Tricia Christensen is based in Northern California and brings a wealth of knowledge and passion to her writing. Her wide-ranging interests include reading, writing, medicine, art, film, history, politics, ethics, and religion, all of which she incorporates into her informative articles. Tricia is currently working on her first novel.
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Tricia Christensen
Tricia Christensen
With a Literature degree from Sonoma State University and years of experience as a All Things Nature contributor, Tricia...
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