Tag Archives: EPA

Sci-Tech

Why National Radon Action?

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The US Centers for Disease Control (CDC) has designated January as National Radon Action Month to draw attention to what it describes as “an invisible, silent home invader.” The CDC initiative seeks to unmask the dangers of radon, a colorless, odorless, and tasteless gas that is responsible for an estimated 21,000 lung cancer deaths in the US each year.

“Radon can build up in the air in any home or building, whether or not it has a basement, is sealed or drafty, or is new or old,” the CDC warns. It also explains that there is “no known safe level of radon,” encouraging every homeowner to test for radon and, when detected, implement effective mitigation systems.

The last week of January 2025 is the CDC’s Radon Awareness Week, which encourages people to explore their personal “Radon Story.” The following facts about radon can help anyone understand how they might come into contact with it, its potential health impacts, and how radon levels in a home or other building can be reduced.

Any home can be vulnerable to radon

Radon is a naturally occurring, radioactive element that is released when radium in rocks, plants, and soil breaks down. It makes its way into buildings through cracks and other openings in foundations.

Outdoors, radon dissipates in the atmosphere to levels that are not harmful to humans. If trapped indoors, however, it can accumulate to dangerous levels. In the US, the Environmental Protection Agency estimates that 1 in 15 homes contains dangerous radon levels. The 2024 Cross-Canada Survey of Radon Exposure in Residential Buildings of Urban and Rural Communities found that 18 percent of Canadian homes contain unsafe levels of radon.

Certain people face higher risks of radon-related health issues

When radon accumulates indoors, it can be breathed in by humans to be trapped in lung tissues, where its radioactivity then can lead to cancer. It is estimated that radon exposure causes an estimated 84,000 lung cancer deaths globally each year, which makes it second only to smoking for lung cancer deaths.

While radon can cause health impacts for anyone, certain people have been identified as being more vulnerable to its effects. According to the EPA, cigarette smokers face a higher risk of radon-induced lung cancer due to the synergistic effects of radon and smoking. Those with a faster breathing rate, including pregnant women and children, also face more of a risk of health impacts from radon.

Modern technology can provide real-time radon readings

Traditional tests determine radon levels by using charcoal canisters to capture a sample of indoor air that is then analyzed in a lab. The effectiveness of those tests is limited by the fact that they capture only a single snapshot of radon levels, which can fluctuate significantly between seasons and even throughout the day.  In addition, obtaining test results from the lab requires waiting several days.

Modern radon monitors provide ongoing readings of radon levels, with initial readings available within minutes and reliable results determined within an hour. These monitors ensure that fluctuations in radon levels are identified, and they can also be easily moved around within a home or building to identify radon hot spots. Continuous readings from the monitors can also be accessed wirelessly through a mobile app for in-depth analysis, capable of alerting the residents to potential radon issues even when they are not at home.

High levels of accumulation require radon mitigation

Mitigation is  essential for homes where high levels of radon accumulation are detected. The EPA has set the radon action level at 4 pCi/L. Canadian authorities have set a level of 200 Bq/m3, which is approximately 5.4 pCi/L.

Radon mitigation systems utilize fans and suction pipes to carry out a process known as active soil depressurization. The process removes radon from beneath foundations before it can make its way into structures. The systems typically require little maintenance and can be run for as little as $10 per month in operating costs. They also prevent other soil gases from entering the home.

While radon poses serious health risks, these risks can be easily prevented. Homeowners can stay safe from the dangerous effects of the gas by taking the steps to: 1)continuously monitoring for radon accumulation by using a modern radon monitor that provides ongoing readings of radon levels, and 2) when necessary, leveraging the mitigation tools available for reducing radon levels or seeking the help of radon professionals to eliminate the threat of toxic gas from the inside of their homes. For the Silo, Insoo Park, Founder and CEO of Ecosense.

Earth

Your Electronic Goods Recycling Donations Become Bank Deposits

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Used and broken electronics such as computers, cellphones, dvd players, washers and dryers still hold intrinsic value because if you were to peer inside these things you’d notice a lot of wire and circuitry. There is a surprisingly substantial amount of copper, silver and gold waiting for “the recycling”.

Consumerism- the acquisition of goods, is largely based today on electronic devices- large screen televisions or smartphones for example. Many of us feel the need to upgrade regularly: bigger screens for our living rooms and faster and more powerful phones.  But in broad terms, our discarded electronic goods contain about the same amount of silver, copper, gold and platinum as the new items we are replacing them with.

How much value are we talking about?

It is difficult to determine an exact value of gold and other precious materials in an average cellphone. This is because no two models are exactly alike, no two batteries are exactly alike.

Lux Bringer from reddit.com:

All of a sudden these, “bring your old cellphones to us so we can recycle them for you” campaigns are making a lot more sense. Sneaky bastards.

 PtrN from reddit.com:PtrN                                                                                                         

I’m not sure. I’m seeing that the average cell phone has 1/8 a gram of gold in it from other comments. At the time of this writing, CNN currently has gold going at $1650USD per troy ounce. I crunched the numbers and am seeing that there is about $6.60USD worth of gold in a cellphone. Not too bad, but I don’t know how profitable it will be after you take into account the costs of transportation and the extraction process itself.

Thoust from reddit.com:

There are other materials in a phone they can salvage besides gold

professor_fatass from reddit.com:

According to the article you also get platinum, palladium, and copper. As well as the glass and plastic which may not be worth much but it can still be recycled.

Interesting isn’t it?

Let’s consider the price of copper. Right now in Canada it is just under 4$CDN per pound. If you’re keen and want to sell your own scrap copper you will need a lot of it. An average washing machine motor has about 8$CDN worth of copper wiring up for grabs. http://www.instructables.com/id/how-to-get-tons-of-free-enameled-copper-wire/http://priceofscrapmetal.com/how-to-sell-scrap-copper-wire/

Gold!

There is gold and platinum inside computer circuit boards and hard drives. Most of the gold is an alloy or plated over another metal but at highs predicted to reach near $1,8000USD per ounce- a high volume recycling effort will pay off.

Bleepin’ Animinion from bleepingcomputer.com:

Any, true recycling effort that would be of a profitable nature needs to be EPA approved. Due to the multiple hazardous materials mixed in with the minute amounts of precious metals. As well as the highly toxic removal and heavy metals separations processes. Also as an example it would take an average of one ton of random circuit-board waste to generate one pound of gold. Add to that electronic grade precious metals are not the expensive jewelry grade high dollar metals. Therefore looking at the gold market is not the price you would get. So the profit you would make on the precious metals would be eaten up by the fees and expense of waste disposal of the one ton of hazardous useless waste product left behind after you reclaimed the precious and hazardous heavy metals. This is definitely not a a project to undertake on a small scale in your garage.

This last quote is an important thing to consider.

If you are considering dropping off your scrap electronics and appliances ask the receiving party if they are environmentally approved and a member of an Electronic Stewardship.  After all, your discarded electronics will earn a tidy sum of money for a large scale salvager. The least they can do is operate within the law and operate with an environmental conscience. But there is some worry.

The salvagers are looking for an uninformed public- they set up their marketing and advertising in a way that makes no mention of the economic benefits they stand to make.

They seldom if ever offer you a small stipend for your ‘donated scrap’ and perhaps even worse, many pose as “good deed” companies ridding us of our “broken goods” destined for the landfill. The Ontario Electronic Stewardship  is a non-profit group that overseas responsible recycling of electronics.  This Stewardship works with existing legal frameworks put in place by Waste Diversion Ontario and the 2002 Waste Diversion Act.  www.wdo.ca

Social impact in the developing world.

In Southern China over 100,000 people including children spend their lives dismantling discarded electronic devices for scrap metal and an unknown number are doing the same thing in Nigeria.  http://www.economist.com/news/international/21570678-growing-mounds-electronic-scrap-can-mean-profits-or-scandals-cadmium-lining

In this file photo from 2001, a migrant child sits atop a pile of unrecyclable computer waste imported to Guiya, China, from other countries.

Basal Action Network

Some players are keeping it real.

Not every electronic device recycling campaign is shady.  Increasingly, not-for-profit groups and volunteer fire departments are setting up large recycling bins with signage such as “your donated scrap metal and electronics helps fund X”. 

If you are considering dropping off discarded electronics to your local “recycling and scrap drive” ask a few questions. Where are the profits from the salvaged materials going? Is the company operating the drive aware of the Ontario Electronic Stewardship guidelines? What happens to your donated goods at the end of the cycle- are they destined for a landfill or for China?