Ensuring safer recycled materials
While some recycled feedstocks, such as sawdust and glass containers, can be safely recycled into new products, others contain legacy contaminants that can lead to toxic exposures when used in new products. To address the potential for toxic re-exposures from recycled materials, HBN worked  with green building standards such as LEED and Enterprise Green Communities to include credits that consider not just if a product contains recycled content, but also what that content is and if it has been screened for potential hazards. 

Enterprise Green Communities Criterion 6.2, Recycled Content and Ingredient Transparency, acknowledges that the need for content transparency applies to recycled content as well as virgin materials. It calls for using products that contain post-consumer recycled content where the origin of the recycled content is publicly disclosed along with information on how the recycled content is screened for or otherwise avoids heavy metals. 

Mind the data gap
Product manufacturers may not always have detailed content information available for the recycled materials they use. Supply chain tracking and internal screening requirements can help manufacturers ensure that the recycled materials they incorporate into new products don’t bring along hazardous contaminants. 

Building a Sustainable Future
Removing toxic chemicals from new products makes a commercial afterlife possible, supports a safe and circular economy, and minimizes negative human health impacts. Using materials that are recoverable at the end of their life and building  infrastructure to reuse or recycle them will lessen future impacts. Fully and transparently documenting product contents now also supports future recycling by identifying materials that may later be determined to be toxic. 

As a building material specifier, the next time you consider a product with recycled content, make sure to ask the manufacturer for full transparency of product content, including where that recycled content came from.

When you shop for a flooring product, what do you consider? Perhaps you think about the look and feel of the product and its durability. You likely also consider the price. The cost of using a material is influenced by the cost to purchase the product itself, the installation cost, maintenance costs, as well as how long the product will last (when you will have to pay to replace it). These are all internalized costs, paid by the building owner. 

These costs alone, however, do not consider the full impacts of materials along their life cycles.  More and more building industry professionals are paying attention to the content of building products and working to avoid hazardous chemicals in an effort to help protect building occupants and installers from health impacts following chemical exposures. To understand the true, full cost of a product, we must look beyond just the monetary cost of purchasing and maintaining a product.

Many of the costs associated with products are more or less hidden when choosing a building material. Just a few of these hidden costs are outlined below.

1. Toxic Chemical Impacts on Human Health: This includes direct medical expenses due to diseases caused or exacerbated by chemical exposures, as well as indirect health-related costs like loss of productivity in work or school and decreased economic productivity in terms of loss of years of life and loss of IQ points. It also includes the immeasurable costs to quality of life and loss of loved ones.
2. Environmental Contamination Costs: Contamination of the environment with toxic chemicals contributes to the human health impacts noted above. In addition, the costs of environmental contamination can include reduced property values in and around contaminated areas, loss of income and food production from the contamination of farms, and the cost of clean up activities (e.g. utilities clean up of water contamination). Less quantifiable costs include damage to wildlife and ecosystems.
3. Climate Change Impacts: Production of chemicals and products is often energy-intensive and based on fossil fuels. Most products contribute to climate change to some extent. Some contribute more than others because of energy use or the release of chemicals with high global warming potential. These greenhouse gas emissions exacerbate climate change, leading to increasingly powerful storms and fires, with increasingly high and recurring costs for recovery. Climate change also magnifies the impacts of toxic chemicals, increasing the human and environmental health costs. 
4. Environmental Injustice: Disproportionately, the health impacts and associated costs throughout the life cycle of products (e.g. during manufacturing and at end of life) fall on  communities of color and low-income communities. The numerical cost of these impacts may not be quantifiable, but the costs to our society are no less clear as a result.

Toxic Chemical Impacts on Human Health
The US Occupational Safety & Health Administration (OSHA) estimates that American workers alone suffer more than 190,000 illnesses and 50,000 deaths per year that are related to chemical exposures. These chemical exposures are tied to cancers, as well as other lung, kidney, heart, stomach, brain, and reproductive diseases.1

While some workers may see greater exposures to hazardous chemicals, all of us are impacted. Many of you are likely familiar with PFAS, aka per- and polyfluoroalkyl substances. PFAS have been used in a wide range of applications, including stain-repellent treatments for carpet and countertop sealers. The widespread use of PFAS has led to extensive contamination of the planet and people. Increasing research and attention to this group of chemicals has led to some quantitative understanding of the costs to society of their use. A recent publication in Environmental Science and Technology outlined some of the true costs of PFAS chemicals. The authors highlight that, “A recent analysis of impacts from PFAS exposure in Europe identified annual direct healthcare expenditures at €52–84 billion. Equivalent health-related costs for the United States, accounting for population size and exchange rate differences, would be $37–59 billion annually.” Importantly, they further call out the fact that, “These costs are not paid by the polluter; they are borne by ordinary people, health care providers, and taxpayers.”2

And this is just the cost of one group of chemicals. Another recent study estimated the cost of US exposures to phthalates, a group of chemicals used to make plastics more flexible, to be approximately $40 billion or more due to loss of economic activity from premature deaths.3 While more research is needed, the scale of these estimated costs is staggering.

Environmental Contamination Costs
The release of PFAS chemicals has contaminated water supplies globally. About two-thirds of the US population receives municipal drinking water that is contaminated with PFAS. Reducing the levels of PFAS in drinking water can be expensive, and none of the methods fully remove PFAS. In the Environmental Science and Technology study mentioned above, the authors note that “following extensive contamination by a PFAS manufacturer in the Cape Fear River watershed, Brunswick County, North Carolina is spending $167.3 million on a reverse osmosis plant and the Cape Fear Public Utility Authority spent $46 million on granular activated carbon filters, with recurring annual costs of $2.9 million. Orange County, California estimates that the infrastructure needed to lower the levels of PFAS in its drinking water to the state’s recommended levels will cost at least $1 billion.” Again, these costs are typically not paid by the polluter but shifted to the public.4

Climate Change Impacts
Chemicals used in the production of some PFAS are ozone depleters and potent greenhouse gases. New research released in September by Toxic-Free Future, Safer Chemicals Healthy Families, and Mind the Store ties the release of one such chemical, HCFC-22, to the production of PFAS used in food packaging. The reported releases of this one chemical from a single facility is equivalent to “emissions from driving 125,000 passenger cars for a year.”5

The costs of climate change impacts are immense. For example, the number of billion-dollar disasters and the total cost of damages due to natural disasters have been skyrocketing. The National Oceanic and Atmospheric Administration describes how climate change contributes to increasing frequency of some extreme weather events with billion-dollar impacts. They outline the broader context of these extreme weather events saying that, “the total cost of U.S. billion-dollar disasters over the last 5 years (2016-2020) exceeds $600 billion, with a 5-year annual cost average of $121.3 billion, both of which are new records. The U.S. billion-dollar disaster damage costs over the last 10-years (2011-2020) were also historically large: at least $890 billion from 135 separate billion-dollar events. Moreover, the losses over the most recent 15 years (2006-2020) are $1.036 trillion in damages from 173 separate billion-dollar disaster events.”6

Figure 1. Billion-dollar Disasters and Costs (1980-2020)7

Environmental Injustice
In the US, communities of color and low-income communities are disproportionately impacted by environmental pollutants.8 These communities often face hazardous releases from multiple sources due to high concentrations of manufacturing facilities near their homes. The area along the Mississippi River between New Orleans and Baton Rouge is known as “Cancer Alley” because of the concentration of industrial activity and the associated elevated cancer risks.9 Figure 2 maps facilities that report to EPA’s Toxics Release Inventory (TRI) in this area. These are facilities that release or manage hazardous chemicals that require reporting to EPA.  

The city of Geismar, LA is home to 18 TRI facilities. These facilities reported a total of over 15 million pounds of on-site releases of hazardous chemicals to air, water, and land in 2019.10 Several of these facilities produce chemicals used in the building product supply chain. Two facilities produce chlorine for internal or external production of PVC, which can be used to make pipes, siding, windows, flooring, and other building products.11 Two other facilities manufacture a key ingredient of spray foam insulation, MDI. Some of these facilities have a history of noncompliance with EPA regulations, one having significant violations for eight of the last twelve quarters and another having significant violations for all twelve of the last twelve quarters.12 Surrounding communities are impacted by regular toxic releases from these facilities and are vulnerable to accidents involving toxic chemicals. For example, an explosion and fire at the vinyl plant in 2012 released thousands of pounds of toxic chemicals, led to a community shelter in place order, and shut down roads and a section of the Mississippi River.13

More than 5,000 people live within three miles of one or more of these four facilities. This community is disproportionately Black — 35% of the population compared to 12% in the US overall. Thirty percent of the population is children, with about 1500 kids under the age of 18. This community has a higher estimated risk of cancer from toxics in the air than most places in the US — almost four times the national average.14

The message we hope you take away from this article is that we must move beyond discussions based purely on the material costs or up-front costs of products. We must all work together to acknowledge and shed light on the true costs that toxic chemicals have within our society and on specific communities. The impacts of hazardous chemicals are, of course, not just monetary –people’s lives are significantly impacted in multiple ways. The current system subsidizes cheap products by robbing individuals of the opportunity for healthy lives and for children to play, and grow up, and enjoy a full and normal life.

Unfortunately, there is not currently enough information available to make detailed cost accounting broadly possible, and no framework exists for accounting for and comparing the full extent of product costs. Transparency about what is in a product, how the product is made, and hazardous emissions – beyond those required to be reported by law – is critical. Programs that place extended responsibility on manufacturers to manage materials at their end of life (as part of extended producer responsibility or EPR)15 can be a starting point for conversations about the full life cycle impacts of products and can help hold manufacturers accountable for a broader array of costs, once they are better understood.

In the meantime, Habitable works to incorporate a life cycle chemical perspective into our safer material recommendations like our Informed™ product guidance and Pharos database. These tools are a work in progress initially focused on avoiding hazardous chemicals in a product’s content. As a starting point, this helps protect not only building occupants and installers, but also others impacted by those hazardous chemicals throughout the supply chain. When hazardous chemicals are used, it is likely that someone throughout the supply chain is impacted. Informed™ can help you choose safer building products based on the information that we have today as we work to expand our incorporation of life cycle chemical impacts into our research and to provide guidance on a broader range of materials.

Habitable looks forward to continuing to identify and provide the critical data needed  to assist in decision making with a more comprehensive view of the true costs of materials, and to developing resources to help communicate the collective return on investment seen by a society where all people and the planet thrive.

Dr. Ami Zota, Associate Professor at the Department of Environmental & Occupational Health at the George Washington University (GWU) Milken Institute School of Public Health, created a platform to amplify underrepresented voices in science and environmental health. She launched her vision, Agents of Change, in 2019 with its first cohort of changemakers.

The high-achieving crew included Dr. MyDzung Chu, a first-generation Vietnamese-American, environmental epidemiologist, new mother, and postdoctoral scientist at the GWU Milken Institute School of Public Health. MyDzung is invested in understanding social determinants of health and environmental exposures within the home, workplace, and neighborhood contexts. Her current research investigates the impact of federal housing assistance on residential environmental exposures for low-income communities. 

In her Agents of Change blog, Why Housing Security is Key to Environmental Justice, MyDzung examines the intersection of housing, racism, and environmental justice, and its effects on population health. She challenges us: “It is time for the environmental health community to step up and be at the forefront of addressing housing insecurity.”

Additives (which may be toxic), fillers, adhesives used in installation, and products made with multiple layers of different types of materials all make recycling of plastic building materials technically difficult. Lack of infrastructure to collect, sort, and recycle these materials contributes to the challenge of recycling building materials into high-value, safe new materials.

Manufacturers have continued to invest in products that are technically challenging to reuse or recycle – initially cheaper due to existing infrastructure – instead of innovating in new, circular-focused solutions. Additionally, their investment in plastics recycling has been paltry. In 2019 BASF, Dow, ExxonMobill, Shell and numerous other manufacturers formed the Alliance to End Plastic Waste (AEPW) and pledged to invest $1.5 billion over the next five years into research and development of plastic waste management technologies. Compare that to the over $180 billion invested by these same firms in new plastic manufacturing facilities since 2010.5

Globally, regulations that discourage or ban landfilling of plastics have, unfortunately, not led to more recycling overall. Instead, burning takes the place of landfilling as the eventual end of life for most plastics.

Confusing rhetoric around plastic end of life options can make this story seem more complicated than it is.6 

• “incineration” or “waste to energy” burns plastic for energy.
• “Plastic-to-fuel” or “gasification” or “pyrolysis” generates fuel. This output is rarely used for anything but burning due to the additional processing required to use for any other purpose.
• “Chemical recycling” could, in theory, lead to new plastic products. This technology is unproven and currently not a scalable solution. The outputs are often burned due to low quality.

Plastic waste burning, regardless of the euphemism employed, is a well established environmental health and justice concern.

Burning plastics creates global pollution and has environmental justice impacts.

In its exhaustive 2019 report, the independent, nonprofit Center for International Environmental Law (CEIL) documents how burning plastic wastes increases unhealthy toxic exposures at every stage of the process. Increased truck traffic elevates air pollution, as do the emissions from the burner itself. Burned plastic produces toxic ash and residue at approximately one fifth the volume of the original waste, creating new disposal challenges and new vectors of exposure to additional communities that receive these wastes.7

In the US, eight out of every 10 solid waste incinerators are located in low-income neighborhoods and/or communities of color.8 This means, in some cases, the same communities that are disproportionately burdened with the pollution and toxic chemical releases related to the manufacture of virgin plastics are again burdened with its carbon and chemical releases when it is inevitably burned at the end of its life.

The issue is global in scale. A recent report by the United Nations Environment Program (UNEP) found that “plastic waste incineration has resulted in disproportionately dangerous impacts in Global South countries and communities.” The Global Alliance for Incineration Alternatives (GAIA), a worldwide alliance of more than 800 groups in over 90 countries, has been working for more than 20 years to defeat efforts to massively expand incineration, especially in the Global South. GAIA members have identified incineration not only as an immediate and significant health threat in their communities, but also a major obstacle to resource conservation, sustainable economic development, and environmental justice.

1. Minimize production of virgin plastic. This should be the main focus of any plastic waste reduction plan and part of any comprehensive climate change initiative. Policies banning single use plastics or banning the construction of new plastic production facilities or facility expansions are two example solutions cited by GAIA.9 Less plastic means less waste and less material to incinerate. 
2. Invest in true circular economy initiatives. These may include, for example: extended producer responsibility programs, materials passports, materials disclosure, elimination of toxic chemical additives, product as a service models, and recycling facilities that support upcycling. By shifting industry investments toward circular economy infrastructure  – instead of the nearly $200 billion investments in increased manufacturing and burning capacity – the plastic industry could start to be part of the solution of reducing plastic waste.
3. When evaluating the “expense” of recycling and circularity vs business-as-usual, a fair calculation for the latter needs to include all costs associated with the production, use, and end of life impacts of plastics. That “cheap” vinyl floor is no longer so inexpensive when the full costs of global pollution and the health burdens of people of color and low income communities are included in the math. Externalities must be a part of the equation.

Virtually every building product we use today contains a petrochemical component that originates from heavily polluted communities, frequently home to people of color. As the green building movement searches for ways to enhance diversity, inclusion and equity, how might it address the legacies of injustice that are tied to the products and materials we use every day?

Architect, Zena Howard, FAIA, offered insight in her 2019 J. Max Bond Lecture, Planning to Stay, keynoting the National Organization of Minority Architects national conference. Howard, known for her work on the design team for the breathtaking Smithsonian National Museum of African American History and Culture, most often works with people in communities whose culture and heritage were “erased” by urban renewal in the 1960’s. In Greenville, North Carolina, she looked to people from the historically African American Downtown Greenville community and Sycamore Hill Missionary Baptist Church Congregation to guide the planning and design process for a new town common and gateway plaza. The goal was not to “replicate” the lost community, but to bring its history and present day aspirations to life in the new design. In Vancouver, British Columbia, the development plan for a neighborhood founded by African Canadian railroad porters included an unprecedented chapter on “reconciliation and cultural redress.” The key to such efforts, according to Howard is co-creation and meaningful collaboration, whose Greek roots, she notes, mean “to labor together.”

How might we labor together to address environmental injustice when evaluating the overall healthfulness and equity of our building materials? The precedent of “insetting” suggests an approach.

Insetting has been pioneered by companies whose supply chains rely upon agricultural communities across the globe. According to Ceres, insetting is “a type of carbon emissions offset, but it’s about much more than sequestering carbon: It’s also about companies building resiliency in their supply chains and restoring the ecosystems on which their growers depend.” 

In previous columns, I’ve addressed concerns about the social in industrial communities, e.g., proposals that perpetuate disproportionate pollution impacts when buying offsets rather than addressing emissions from a specific facility. Applying the “insetting” approach we might ask our materials manufacturers—and the communities that are home to the building materials industries—what steps can we take to encourage manufacturers to “labor with” communities seeking environmental justice, such as those along the Mississippi River? Can we, together, resurrect and restore their history, reconcile and redress historical wrongs, and build a healthier future for all?

To learn more about the history and present day conditions of Cancer Alley, see these excellent articles from The Guardian and Pro Publica: https://www.ehn.org/search/?q=cancer+alley

You can watch to Zena Howard’s J. Max Bond lecture, Planning to Stay, here: https://vimeo.com/378622662

You can learn more about the River Road African American History Museum here: https://africanamericanmuseum.org/

Educators are doing important work and making our homes, workplaces and communities safer to inhabit. Pharos can help you meet your goals and streamline your work. In addition to our standard online access, now there are more ways to access chemical hazard data! 

• Connect to the Pharos API to reduce manual entry and ensure you have the most current information available.
• Not able to take our API yet, but still manually managing lists of lists for your EHS, regulatory, or sustainability programs? We offer low-cost standard and custom data downloads from Pharos to power your internal chemicals management programs.

Broad Impacts of Toxic Chemicals
One way researchers quantify the impact of chemicals is to consider the broad economic impacts of chemical exposures. Evidence increasingly shows that toxic chemical exposures may be costing the USA billions of dollars and millions of IQ points. One recent study estimates that certain endocrine-disrupting chemicals cost the United States $340 billion each year. This is a staggerring 2.3% of the US gross domestic product.1 And that is for only a subset of the hazardous chemicals that surround us every day. These numbers provide important context for the larger discussion of toxic chemical use, but cannot easily be tied to daily decisions about specific materials.

Market Scale Impacts
For years, Habitable has been targeting orthophthalates in vinyl flooring as a key chemical and product category combination to be avoided. Orthophthalates can be released from products and deposited in dust which can be inhaled or ingested by residents—particularly young children who crawl on floors and often place their hands in their mouths3. By systematically reducing chemicals of concern in common products, we can all work together to continue to affect this scale of change in the marketplace and keep millions more tons of hazardous chemicals out of buildings.

Impacts on the Project Scale
Context is key for understanding the impact chemical reduction or elimination can have—a pound of one chemical may not have the same level of impact as a pound of another chemical. But, given the right context, this sort of calculation may prove useful as part of a larger story. The following examples provide context for the story of different impacts of different chemicals. 

• Small decisions, big impacts: While many manufacturers and retailers have phased out hazardous orthophthalate plasticizers, some vinyl flooring may still contain them. If we consider an example affordable housing project, avoiding orthophthalates in flooring can keep dozens of pounds of these hazardous chemicals out of a single unit (about the equivalent of 10 gallons of milk).4 For a whole building, this equates to several tons of orthophthalates that can be avoided.5 It is easy to see how this impact quickly magnifies in the context of a broader market shift.
   
• Little things matter: Alkylphenol ethoxylates (APEs) in paints are endocrine-disrupting chemicals make up less than one percent of a typical paint. In this case, by making the choice to avoid APEs, a couple of pounds of these hazardous chemicals are kept out of a single unit (about the equivalent of a quart of milk). This translates to a couple of hundred pounds kept out of an entire building.6 This quantity may seem small compared to the tons avoided in the phthalate example above, but little things matter. Small exposures to chemicals can have big impacts, particularly for developing children.7 And, since our environments can contain many hazardous chemicals, and we aren’t exposed to just a single chemical at a time, these exposures stack up in our bodies.8
• Reducing exposure everywhere: Choosing products without hazardous target chemicals keeps them out of buildings, but can also reduce exposures as these products are manufactured, installed, and disposed of or recycled. Some chemicals may have impacts that occur primarily outside of the residence where they are installed, but these impacts can still be significant. Polyvinyl chloride (PVC), for example, a primary component of vinyl flooring, requires toxic processes for its production and can generate toxic pollution when it is disposed of. Manufacturing of the PVC needed to create the vinyl flooring for one building as described above can release dozens of pounds of hazardous chlorinated emissions, impacting air quality in surrounding communities.9 These fenceline communities are often low-income, and suffer from disproportionate exposure in their homes, through their work, and from local air pollution. If choosing non-vinyl flooring for a single building can help reduce potential exposure to hazardous chlorinated emissions in these fenceline communities, imagine the potential impacts of avoiding vinyl on a larger scale!

In addition to information about target chemicals to avoid, our Informed™ product guidance provides recommendations of alternative types of materials that are typically better from a health hazard perspective and includes steps to work toward the goal of full transparency of product content and full assessment of chemical hazards. This framework can help ensure that toxic chemicals and  regrettable substitutions are avoided.

Each decision you make about the materials you use, each step toward using healthier products, can have big impacts within a housing unit, a building, and in the broader environment. Collectively, these individual decisions also influence manufacturers to provide better, more transparent products for us all. Ultimately, this can reduce the hazardous chemicals not just in our buildings but also in our bodies.