It’s Time to Get Toxic Chemicals Out Of Dry Cleaning

January 22, 2019

January 22, 2019


Today’s Guest Blog is by Steve Whittaker and Ashley Pedersen with the Local Hazardous Waste Management Program in King County, Washington. The article was originally posted in Environmental Health News on December 13, 2018.


Perchloroethylene, a probable human carcinogen, remains the most frequently-used solvent for dry cleaning. It's time to help the industry change—and our county is doing just that.


When perchloroethylene (PERC) was introduced to the dry cleaning industry in the 1930s, it must have seemed like a miracle solvent.

It cleans clothes well and – most importantly – it is nonflammable. This is in contrast to the previous solvents, like Stoddard solvent, gasoline, turpentine, and even benzene. Because the use of these flammable solvents resulted in catastrophic fires and explosions, government regulations forced dry cleaners to move out of highly populated areas. With the advent of PERC, dry cleaners could move back to population centers, where the customers were.


The dry cleaning industry provided a unique opportunity for a whole generation of immigrants. A 2011 survey indicated that in King County, Washington, for instance, more than 80% of dry cleaning business owners emigrated from South Korea. For many of these immigrants, dry cleaning was the ideal business. They readily grasped the complexity of the dry cleaning process and were able to build successful businesses through hard work.


Unfortunately, very few are aware of the health risks associated with a lifetime of using a hazardous chlorinated solvent.


Old machines, hazardous exposures 


The earliest dry cleaning technology used "transfer machines," where fabrics washed in PERC were manually transferred to dryers while still wet. The exposures to PERC were massive, and several epidemiological studies suggest excess risk for cancer and adverse effects on the nervous system, kidneys, liver, immune system and the hematologic (blood) system.


Although transfer machines are now banned in the United States and replaced with enclosed "dry-to-dry" machines, we still see PERC exposures. In King County, most PERC machines are more than 20 years old, which is past their operational lifespan of 15 years. These old machines are leaking. We have measured hundreds of parts per million of PERC in the ambient air of dry cleaners.


Workers are also exposed to PERC when they remove fabrics from the machine, handle their hazardous waste, and deal with accidental spills.


Here in King County, the Local Hazardous Waste Management Program has provided technical assistance to the dry cleaning community for more than 20 years.


When we considered the legacy of PERC's effects on health and the environment, we realized that we needed to get PERC out of dry cleaning.


There are almost 200 sites in King County contaminated with PERC. In addition, some of our local communities draw their drinking water from shallow aquifers, which contain detectable levels of PERC. The U.S. Environmental Protection Agency (EPA) is currently evaluating PERC for possible restriction, so we recognized an opportunity to help dry cleaners switch to safer alternatives – and avoid "regrettable substitutes" – ahead of potential federal regulations.


Making the switch


Several jurisdictions have already taken steps to remove PERC dry cleaning machines from circulation. The California Air Resources Board (CARB) passed a regulation in 2007 phasing-out PERC dry cleaning by 2023. The Cities of Philadelphia and Minneapolis have also passed phase-outs.


Other jurisdictions have given tech and financial support to help dry cleaners switch to safer alternatives, including Massachusetts (via the Toxics Use Reduction Institute), New York State, the South Coast Air Quality Management District, and the City of Minneapolis.

We engaged our dry cleaning community to find out what it would take to help them switch. We worked with leaders in the Korean-American community to host meetings of the local dry cleaning association, facilitated focus groups, and conducted numerous interviews with dry cleaners – all in Korean. We learned that cost was the single greatest barrier to replacing old PERC machines with safer technology.


In 2018, we began offering $20,000 equipment reimbursement grants to help dry cleaners replace their PERC machines with professional wet cleaning, which relies on water and detergent, rather than an organic solvent.


The latest generation of professional wet cleaning is an integrated system, comprised of a programmable washer, a moisture-sensing dryer, and specialized detergents and conditioners that allow any "dry clean only" fabric to be washed in water.


So far, we have provided grants to seven dry cleaners — and all seven are no longer inhaling PERC. Some workers are reporting significant improvements in their health. Shop owners are also saving money because they no longer generate hazardous waste and their utility bills are much lower.


Our goal is to make King County PERC-free by 2025 by offering 10 grants of $20,000 per year.

Providing grants to small businesses is a positive step in helping eliminate dangerous chemical exposures that impact the health and environment in our communities.


Ashley Pedersen and Steve Whittaker are with the Local Hazardous Waste Management Program in King County, Washington, where they manage the county's financial incentive program to transition PERC dry cleaners to safer alternatives.


LHWMP is a regional collaboration between Public Health - Seattle & King County, King County Department of Natural Resources and Parks, Seattle Public Utilities, and suburban cities in King County.


Environmental Health News publication of Environmental Health Sciences, a nonprofit, nonpartisan organization dedicated to driving science into public discussion and policy on environmental health issues, including climate change. The article is reprinted by permission.



Disclaimer: Guest blogs represent the opinion of the writers and may not reflect the policy or position of the Northeast Recycling Council, Inc.

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By Chaz Miller January 5, 2026
2025 was not a good year for recycling markets. Prices went down for everything in your bin. The only real difference is how badly each material got hit and why. Let’s start with paper, the most important recyclable in terms of weight and volume. Old Corrugated Container (OCC, boxes) prices started rising in the spring of 2023, peaking for several months in the summer of 2024. A long slide then began and lasted for almost all of 2025. Prices for Residential Mixed Paper (RMP) did the same. Nationally, OCC is now at $46.88 per ton and RMP is $20.31 a ton. OCC went down by a third while RMP went down by half. The “good” news is that these prices have been lower in the last five years. RMP, after all, had a negative value early in 2020 and then for a few months in late 2022. (All prices in this article are national prices from RecyclingMarkets.net as of December 31). The 2023 rise and then fall of recycled paper prices was the result of increased capacity to use OCC and RMP as raw materials along with declining overall demand for boxes. New recycled content paper capacity started coming online in 2017, peaking in 2023 when five new mills opened. Those new mills, eager to build up supply lines, caused prices to go up. Existing capacity had no choice but to also pay more. At the same time, demand for new boxes was going down. In fact, box demand has been going down for four years. Something had to give. In 2025, nine existing paper mills announced they would be closing. Old, more expensive, and less efficient to operate, they couldn’t compete with the new mills. All four plastic resins lost value but the impact varied by resin. Natural HDPE, (mostly milk jugs) lost a third of its value. Polypropylene (mostly dairy products) went down by 40 percent. Color HDPE (consumer products such as detergent and shampoo) went down by 48 percent and PET beverage bottles went down by two thirds. Natural HDPE is 46.81 cents a pound. Even at the lower price, this resin remains in a good price range. PET and polypropylene are both 5.38 cents a pound. Recycled PET rose steadily from the summer of 2023 to the summer of 2024. Then it declined equally steadily until it reached a record low of 4.19 cents in early October of this year. Cheap recycled resin imports, too much domestic virgin PET resin and lower summer beverage demand gave prices nowhere to go but down. Recycled PET resin imports are now subject to tariffs, which may be responsible for its recent increase. Nonetheless, its price remains in the doldrums. Polypropylene generally has a low price except when new capacity is coming online and building up capacity. For 46 of the 72 months since January 2020, its price has been less than a dime a pound. For 17 months, it’s been at its current not very good price or less. Color HDPE is 2.81 cents a pound. This resin depends on construction markets because the color can’t be taken out of the resin. New housing starts have been in decline for four years. It also set a record low price in 2025. Aluminum and steel cans are recycling market’s happy place. Their prices went down by 9.3 and 8.7 percent. Aluminum cans have a national average price of 78.75 cents while steel cans go for $158.75 a ton. Over the last few years, the aluminum industry smartly expanded into non-alcoholic beverages such as water and fruit juices. Those new uses keep demand up. After sliding last year, steel can prices stabilized. As for glass, it’s price rarely changes. Clear glass bottles go for $38.56 a ton, brown for $27.19 and green for $10.31. Those prices all rose slightly in the spring of 2023. Mixed glass from single stream curbside collection has a “negative tipping fee” of $25.31 a ton. In other words, the MRF pays the end market to buy it. That price became slightly more negative this year. The glass industry has been in decline for some time, a victim of lighter weight aluminum cans and plastic bottles. In addition, Americans are drinking less alcohol. That’s the biggest user of glass bottles. Our beleaguered economy is hurting recycling markets. Recyclables are just raw materials looking for a buyer. Those buyers are purchasing managers making a bet on how much raw materials they will need for their companies’ products. This can be, say, aluminum cans, boxes to ship those empty cans to beverage companies or boxes to deliver filled cans to retail outlets. When buyers are optimistic, they buy more. In 2025, they were gloomy. Prices of all of these recyclables have been hurt by declining unit sales of consumer products and the resulting decline in box demand. We are in a “ K-shaped” economic recovery from the pandemic. This means the recovery’s impact varied by economic status. Wealthy households now account for half of consumer spending on goods and services. They spend more on “services” such as trips and entertainment than on goods. Lower income households, however, are squeezed between paying for necessities such as housing, health care, insurance and food before everything else. They are pinching their nickels and looking for bargains. Simply stated, due to the K-shaped recovery, sales are down and we need fewer packages and shipping boxes. So what will happen in 2026? The loss of so much older paper capacity is bringing demand and supply back into a better balance. Look for prices to rebound a bit. Plastic prices will remain soft barring a reversal of the K-shaped recovery. PET prices, have the most potential if beverage demand returns. Color HDPE, will remain in the doldrums until new housing construction increases. Natural HDPE will stay where it is or go up a bit. Polypropylene will probably stay where it is. As for glass, change isn’t likely. I realize that’s not optimistic. Given the projected rise in health, insurance and energy costs this year, Americans will still be pinching pennies. Box production will decline as unit sales fall. Our K-shaped economy needs to become a rising economic tide lifting all boats. Recyclables, afterall, are commodities subject to the economy’s ups and downs. When our economy truly rebounds, recycling markets will thrive again. Read on Waste360.
By Waste Dive December 9, 2025
MRFs in the Northeast United States reported a decrease in average prices for nearly all recycled commodities — with glass and bulky rigids providing the rare bright spot — during the third quarter of 2025, according to a report from the Northeast Recycling Council. This continues the downward trend reported in the region since Q2. In Q3, average blended commodity value without residuals was $75.14, a decrease of 21.9% from the previous quarter. When calculating the value with residuals, prices were $60.16, a decrease of 27.24%, says the quarterly MRF Commodity Values Survey Report. Single-stream MRFs saw values decrease sequentially by 23.32% without residuals and 28.86% with residuals. Dual-stream or source-separated MRFs saw decreases of 17.33% without residuals and 21.76% with residuals compared to last quarter. The report includes information from 19 MRFs representing 12 states: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Virginia. The NERC report is meant to offer a regional look at price trends and is a part of the group’s ongoing work to promote and boost recycled commodity supply and demand in the Northeast. It surveys a variety of MRFs in numerous markets, including those in five states with beverage container deposit laws, which it says affect material flows into MRFs. NERC says its reports are not meant to be used as a price guide for MRF contracts because it “represents the diversity of operating conditions in these locations.” NERC adopted a new report format at the beginning of 2025 that now provides average prices for specific commodities in addition to aggregate values. According to the Q3 report, most commodity categories fell significantly, with the exception of glass and the “special case of bulky rigids.” The average price for bulky rigids in the quarter was $43.26, a 93% increase from the previous quarter. NERC did not offer insight into the increase. The average price for PET was $125.58 in the quarter, down 60%, while prices for Natural HDPE fetched about $955.31 a ton, down 46%. OCC saw an average price of about $86.23, down 10%, according to the report. Major publicly-traded waste companies echoed similar commodity trends during their Q3 earnings calls . Casella, which operates in the Northeast and mid-Atlantic, reported that its average recycled commodity revenue per ton was down 29% year over year in Q3. To reduce the impact from low commodity values, the company typically shares risk with customers by adjusting tip fees in down markets. Recent upgrades at a Connecticut MRF helped raise revenue for processing volumes in the quarter, executives said. Meanwhile, Republic Services is planning to build a polymer center for processing recycled plastic in Allentown, Pennsylvania, next year. During the Q3 earnings call in October, executives said they expect strong demand at such centers from both a pricing and volume standpoint, despite the decline in commodity prices. The company already has similar polymer centers in Indianapolis and Las Vegas, which consume curbside-collected plastics from Republic’s recycling centers and produce products such as clear, hot-wash PET flake and sorted bales of other plastics. Read on Waste Dive.
By Megan Fontes December 4, 2025
NERC’s Material Recovery Facilities (MRF) Commodity Values Survey Report for the period July - September 2025 showed a continued decline in the average commodity prices for Q3 2025. The average value of all commodities decreased by 21.90% without residuals to $75.14 and by 27.24% with residuals to $60.16, as compared to last quarter. Single stream decreased by 23.32% without residuals and 28.86% with residuals, while dual stream / source separated decreased by 17.33% without residuals and 21.76% with residuals compared to last quarter. Dual stream MRFs saw a slightly smaller decrease with residuals than single stream. Individual commodity price averages this quarter denote the decrease felt across all commodity categories apart from glass and the special case of bulky rigids.