VINYL

File 01 · MaterialComposition · what LVP actually is

The Material

A photographic film of wood, laminated over a rigid PVC core, sold as the modern replacement for hardwood.

Luxury Vinyl Plank — sold under the brand names Shaw Floorté, Mohawk Pergo Extreme, COREtec, Karndean, Mannington Adura, Armstrong Empower, LL Flooring, and Home Depot's Lifeproof, and by a wide field of direct‑to‑consumer and regional sellers including McMillan Floors ("Feels like home") and AquaProof Floors ("Premium Waterproof Flooring"), among many others — is a layered composite product. A photographic film printed with a wood, stone, or tile pattern is laminated under a transparent wear layer; that decorative assembly is bonded to a rigid or semi‑rigid core; and the whole plank is finished with a click‑lock edge profile for floating installation. The visual fidelity at six feet is, by 2026 standards, very high. The chemistry is older.

Every LVP plank sold in the United States is, fundamentally, a polyvinyl chloride product. The core may be classified as SPC (Stone Plastic Composite — PVC bonded to limestone filler) or WPC (Wood Plastic Composite — PVC bonded to a foaming agent and wood flour), and the precise plasticizer chemistry varies by manufacturer and sourcing year, but the structural polymer is PVC. PVC is made from polymerized vinyl chloride monomer. Vinyl chloride monomer is a known human carcinogen.

Base PolymerPolyvinyl Chloride (PVC) · polymerized from vinyl chloride monomer (VCM)

Core Type · SPCPVC + limestone (CaCO₃) filler · rigid · dent‑resistant

Core Type · WPCPVC + wood flour + foaming agent · softer underfoot · warmer

Plasticizers · HistoricalDEHP, BBzP, DnBP · phased out by major U.S. brands ~2015–2020 · still present in older imports

Plasticizers · CurrentDOTP (dioctyl terephthalate) · less safety data · evidence of estrogenic activity

StabilizersCalcium‑zinc systems (modern) · lead and cadmium documented in lower‑tier imports

Wear LayerAluminum‑oxide‑infused urethane · 6 mil (residential) to 28 mil (commercial heavy)

U.S. Import OriginChina, Vietnam, South Korea · ~80%+ of U.S. supply

Global Market$33B in 2026 · 13.4% CAGR · fastest‑growing flooring category

Consumer PositioningMarketed on lifestyle and performance claims — e.g. "Feels like home" (McMillan Floors), "Premium Waterproof Flooring" (AquaProof Floors) — rather than chemical composition or disclosure

The single chemical commitment that defines LVP — and that no manufacturer of LVP can escape — is to the vinyl chloride / PVC chain. Every gram of PVC core in every plank installed in an American kitchen began as vinyl chloride monomer in a chemical reactor, most often in a coastal Texas or Louisiana petrochemical facility, increasingly in a Chinese or Vietnamese one. Vinyl chloride is one of the most carefully regulated occupational chemicals in U.S. history because of what it did to workers in those reactors in the 1970s. That regulatory architecture does not extend to the downstream product on a homeowner's floor — but the chemical lineage is unbroken.

"PVC is widely considered to be the most toxic plastic from production to use to disposal." — Toxic‑Free Future, on the East Palestine derailment, 2023

File 02 · Established HarmChildren · asthma · the peer‑reviewed record

The Established Harm

Children's chronic asthma. Replicated across multiple independent birth cohorts on three continents. This is not speculation.

The most important fact about LVP flooring is the one almost never disclosed at point of sale: there is more than two decades of peer‑reviewed epidemiology linking PVC vinyl flooring to childhood asthma and respiratory inflammation. The studies are not from advocacy groups. They are from Columbia University's Mailman School of Public Health, the Icahn School of Medicine at Mount Sinai, Karolinska Institute, the Swedish National Institute of Public Health, the University of Texas at Austin, and the U.S. Environmental Protection Agency. The findings have replicated across populations, geographies, and decades. The mechanism is biologically plausible and chemically characterized.

2008

Hoppin et al. · Phthalate concentrations in indoor dust associated with wheezing among preschool children. PVC flooring in child's bedroom was the strongest predictor of respiratory ailments.

2009

Bornehag et al. · 10,852 Swedish children · statistically significant link between PVC flooring and asthma diagnoses.

2012

Columbia birth cohort (Whyatt et al.) · Children exposed to DEP or BBzP showed elevated risk of asthma‑related airway inflammation. Prenatal BBzP exposure linked to elevated childhood eczema.

2013

Swedish 10‑year follow‑up (Shu, Bornehag et al.) · Children with PVC bedroom flooring were 1.5× more likely to have doctor‑diagnosed asthma versus wood/linoleum.

2014

Columbia/Whyatt follow‑up · Children of mothers with high prenatal BBzP/DnBP exposure had 72% and 78% increased asthma risk at ages 5–11.

2015

Mount Sinai / Columbia indoor air study · NYC birth cohort, n=239. Rooms with vinyl flooring had 23.9 ng/m³ airborne BBzP versus 10.6 ng/m³ in wood/carpet rooms. Concurrent urinary metabolites elevated in children of those rooms.

2018

PROGRESS cohort (Mexico, Mount Sinai collaboration) · Prenatal phthalate exposure associated with childhood wheeze and asthma; effects varied by sex.

2024

EPA TSCA designation · Vinyl chloride formally designated as High‑Priority Substance for risk evaluation. Multi‑year regulatory process begins.

The mechanism is not in dispute. Phthalate plasticizers are not chemically bound to the PVC polymer matrix. They are blended in during manufacture to give the plastic flexibility, and they migrate continuously out of the finished product over the course of the product's lifecycle — a process called off‑gassing for the volatile fraction and leaching for the surface‑contact fraction. Phthalates accumulate in indoor dust. Children, who spend more time on or near the floor surface and ingest roughly 5–10× more dust per kilogram of body weight than adults, accumulate measurable urinary metabolite concentrations. Those metabolites correlate with airway inflammation. The airway inflammation correlates with asthma diagnosis.

"Persistent VOC exposure indoors can exacerbate asthma or cause irritation in the eyes, nose, and throat. Chronic exposure to certain phthalates has been linked to hormonal imbalance and developmental effects in children." — Dr. Philip Landrigan, pediatrician & environmental health expert, Mount Sinai

Critical Note · Modern vs Legacy Product

The most damaging phthalates — DEHP, BBzP, DnBP — have been substantially phased out by major U.S. LVP brands since approximately 2015–2020. Modern FloorScore‑ or GreenGuard Gold‑certified product is genuinely lower in these emissions than the product studied in the 2008–2015 epidemiology. However: certification is voluntary, replacement plasticizers (DOTP especially) have less safety data, and legacy vinyl flooring installed before 2020 remains in tens of millions of U.S. homes. The disclosure burden currently sits with the consumer.

File 03 · ManufacturingVinyl chloride · production · communities

The Manufacturing

Every plank begins as a known human carcinogen in a chemical reactor. The communities downwind have known this since 1974.

The story of vinyl chloride as an industrial carcinogen begins in 1974, when a cluster of liver angiosarcoma cases — a cancer so rare that the cluster itself was the evidence — emerged among workers at a B.F. Goodrich PVC plant in Louisville, Kentucky. The link to vinyl chloride exposure was established within months. OSHA issued an emergency temporary standard, then a permanent standard limiting workplace exposure to 1 ppm. The standard worked. Occupational angiosarcoma cases declined.

But vinyl chloride did not become safer. Workplaces did. Production continued — and grew. By 2026, the United States produces between 10 and 20 billion pounds of vinyl chloride per year, concentrated in coastal petrochemical corridors of Texas, Louisiana, and Kentucky. PVC manufacturing facilities release an estimated 414,803 pounds of vinyl chloride to air annually, distributed across communities — predominantly low‑income and disproportionately Black and Latino — that live within the three‑mile radius of those plants.

U.S. Production Volume10–20 billion lbs / year (EPA 2016 Chemical Data Reporting)

Annual Air Release~414,803 lbs vinyl chloride to air · U.S. manufacturing facilities

Carcinogen ClassificationIARC Group 1 · liver angiosarcoma · hepatocellular carcinoma · lung cancer · brain cancer

OSHA Permissible Limit1 ppm time‑weighted average (since 1974)

Superfund Sites593 of 1,867 federal NPL sites contain vinyl chloride contamination

Train Derailments29 derailments carrying vinyl chloride since 1968 · nearly half resulted in environmental release

East Palestine Release · Feb 2023~1.1 million lbs vinyl chloride from five tankers · controlled burn · ~5,000 residents evacuated

Community Demographics27% of residents within 3 miles of PVC manufacturing are children (national avg: 22%)

The East Palestine, Ohio derailment of February 3, 2023 became the most visible recent illustration of the vinyl chloride supply chain. A Norfolk Southern freight train carrying 1.1 million pounds of liquid vinyl chloride derailed and burned. Emergency responders, faced with the possibility of catastrophic explosion, conducted a "vent and burn" of the tankers — releasing the entire chemical payload as a black plume that rose visibly over the town. Roughly 5,000 residents were evacuated. Three years later, residents continue to report rashes, respiratory symptoms, and unexplained illnesses. A University of Louisville medical researcher has begun studying a possible cluster of liver and gastric abnormalities in the surrounding population.

"What happened in East Palestine is a symptom of a larger issue. Almost all vinyl chloride goes into making PVC plastic, but we already have safer alternatives for PVC products. We just need to use them." — Jess Conard, East Palestine resident & Beyond Plastics regional director, 2024

The Biden administration's EPA, in December 2024, designated vinyl chloride as one of five high‑priority chemicals for risk evaluation under the Toxic Substances Control Act. This is the same regulatory pathway that produced the EPA's 2024 federal ban on chrysotile asbestos — six decades after the disease pattern was clear. The vinyl chloride evaluation, by EPA's own scoping document released January 2025, will examine manufacturing, processing, distribution, commercial and consumer uses, and disposal. The minimum statutory timeline is three years. It will not conclude before late 2027 at the earliest, and conclusion does not automatically produce a ban — only the basis for one.

File 04 · Installer & IndoorCutting · adhesives · off‑gassing · the residential exposure

The Installer & The Home

There is no LVP silicosis equivalent. There is something different — distributed, chronic, and harder to see.

This investigation must be honest about one important asymmetry from Field Report 01 (DUST). The engineered‑stone silicosis crisis is concentrated in a specific occupational population — fabricators in cutting shops — and produces a specific identifiable disease (silicosis) in a specific timeframe (3–10 years). LVP does not present that pattern. There is no documented epidemic of pulmonary fibrosis among LVP installers. The mechanism that produced silicosis from engineered‑stone dust — fresh respirable silica fracturing the alveolar tissue — does not have a clean analogue in PVC plank cutting. The cutting‑causes‑dust intuition, applied directly from engineered stone to LVP, does not survive contact with the chemistry.

What LVP produces instead is a different — and arguably broader — exposure profile. The harm is residential, chronic, and falls heaviest on children.

PATH 1

Phthalate off‑gassing. Plasticizers migrate continuously from the wear layer into indoor air for 30–60 days at peak intensity post‑install, then at lower intensity for the full life of the product. Indoor concentrations of BBzP, DEHP, and (currently) DOTP measurable years after installation.

PATH 2

House‑dust accumulation. Phthalates partition out of indoor air into house dust, where they concentrate. Children ingest dust at 5–10× the adult rate per kg body weight and are positioned closer to the floor surface.

PATH 3

Microplastic shedding. The wear layer degrades over the product lifecycle, releasing micro and nanoscale PVC particles into indoor dust. The degradation accelerates under UV exposure (sun through windows). Long‑term inhalation and ingestion consequences are documented but unquantified at scale.

PATH 4

Installer adhesive exposure. Glue‑down LVP requires solvent‑based adhesives whose VOCs (including formaldehyde and benzene homologues in lower‑tier products) are released during application. Click‑lock floating installs reduce but do not eliminate this exposure.

PATH 5

Cutting dust. Site cutting of LVP planks with electric saws produces particulate dust containing PVC fragments, limestone filler (SPC cores), and trace plasticizer residues. Not crystalline silica. No systematic worker‑health surveillance exists.

PATH 6

Heat events. PVC begins thermally decomposing above ~150°C / 300°F, releasing hydrogen chloride and trace dioxins. Residential fires involving LVP flooring are documented to produce more severe combustion products than wood floors.

PATH 7

End‑of‑life. Demolished or replaced LVP enters construction waste streams. PVC is not meaningfully recyclable. Landfill: multi‑century persistence. Incineration: chlorinated dioxin release. No manufacturer takeback program exists at scale.

"Vinyl flooring can release harmful VOCs, toxic substances, and does not biodegrade. It may also contribute to microplastic pollution. While it is marketed as convenient and low‑cost, the long‑term health and environmental impacts are far more significant than the benefits advertised." — Vantia Hardwoods, industry commentary, 2025

Of these seven pathways, only one — adhesive VOC exposure during install — is subject to existing OSHA respiratory protection requirements (29 CFR 1910.134), and those requirements are inconsistently enforced in residential settings dominated by small contractors and short job durations. There is no federal surveillance program for LVP installer health. There is no required medical evaluation. There is no industry‑wide hazard communication to homeowners about post‑install ventilation requirements beyond what voluntary certification programs disclose. The default condition of an LVP install in the United States, in 2026, is that the homeowner is the entity bearing the diligence burden.

Recommended Disclosure Standard

Every LVP product sold for residential installation should carry, on its packaging and in its marketing, mandatory disclosure of: (1) FloorScore or GreenGuard Gold certification status; (2) phthalate composition with chemical names; (3) heavy metal content (lead, cadmium); (4) recommended post‑install ventilation duration; and (5) end‑of‑life recovery options. None of the above is currently required by federal law.

File 05 · PrecedentThe asbestos arc, third iteration

The Pattern, Three Times

Asbestos. Lead paint. Engineered stone. Now LVP. The same arc, the same delay, the same architecture of denial.

Field Report 01 documented the asbestos parallel as it applies to engineered stone silicosis. The pattern is now visible in a third iteration — at an earlier phase of the cycle, with a larger affected population, and with the structural advantages tilted further in favor of the manufacturer than at any previous iteration of the same arc.

The pattern is the same. Only the chemistry and the calendar change.

PHASE 1

Product introduced as superior consumer alternative. Asbestos: fireproof, durable, cheap. Engineered stone: marble‑look at granite price. LVP: waterproof, scratch‑resistant, wood‑look at laminate price.

PHASE 2

Disease pattern emerges in epidemiology. Asbestos: mesothelioma clusters in shipyards. Engineered stone: silicosis in fabricators. LVP: childhood asthma signal in birth cohorts, 2008 onward.

PHASE 3

Industry contests causation. Asbestos: manufacturers disputed the link for decades, with later‑disclosed internal documents showing earlier knowledge. Engineered stone: ongoing. LVP: industry currently asserts "modern product is different from studied product" — partially true, but unaudited.

PHASE 4

Regulatory action lags behind disease. Asbestos: U.S. federal ban not finalized until 2024, six decades after the disease pattern was clear. LVP: EPA TSCA risk evaluation began December 2024. Minimum three‑year timeline.

PHASE 5

Litigation drives partial accountability. Asbestos: hundreds of billions in settlements. Engineered stone: litigation building, federal liability shield bill pending. LVP: no significant litigation yet. Plaintiff bar attention has not yet materialized.

PHASE 6

Substitute materials emerge. Asbestos → fiberglass, mineral wool. Engineered stone → silica‑free Caesarstone Mineral. LVP → engineered hardwood (water‑resistant cores), porcelain plank tile, true linoleum (Marmoleum), cork. All commercially available now.

What distinguishes the LVP iteration is the distribution of harm. Asbestos disease was concentrated in identifiable occupational cohorts — shipyard workers, insulation installers, miners — who could be assembled into class‑action plaintiff groups. Engineered stone silicosis is concentrated in a fabricator workforce of perhaps 100,000 individuals. LVP exposure is distributed across tens of millions of U.S. households. The individual harm signal — childhood asthma incidence increased by 50–100% in exposed populations — is statistically powerful but individually attributable only with difficulty. A child with asthma is not, in the way a mesothelioma patient is, an obvious member of an exposed cohort. The diffuse harm pattern is itself an obstacle to accountability.

"In the United States, we don't ban products. The EPA only finalized its ban on asbestos in 2024, after a decades‑long fight by health and safety advocates and an annual death toll of nearly 40,000." — Raphael Metzger, toxic tort attorney, In These Times, April 2026

The acceleration story also runs the other way. Asbestos disease (mesothelioma) typically presented 20–40 years after exposure — long enough for industry to outlast the warning signs. Engineered‑stone silicosis is presenting in 3–10 years, collapsing the delay. LVP, by contrast, produces effects measurable within days to weeks of installation in the airborne phthalate concentration of a child's bedroom — and within years to a decade in measurable asthma incidence. The mechanism is faster than asbestos. The political response, however, may be slower, because the harm is distributed across millions of consumers rather than concentrated in a working population that can organize.

File 06 · RegulatoryEPA TSCA · state action · industry response

The Status of the Review

Where the regulatory process actually stands, what it can do, and how long it will take.

The active federal regulatory process targeting LVP's underlying chemistry is the EPA's Toxic Substances Control Act risk evaluation of vinyl chloride, formally initiated in December 2024. This process is the most consequential chemical safety mechanism available to the U.S. federal government under existing law. It is also slow, contested, and currently subject to political uncertainty regarding implementation.

Regulatory PathwayToxic Substances Control Act (TSCA) · Section 6 risk evaluation

Designation DateDecember 18, 2024 · vinyl chloride designated High‑Priority Substance

Draft Scope DocumentReleased January 16, 2025 · public comment closed April 2, 2025

Health & Safety Reporting16‑chemical data submission · deadline extended to May 22, 2026

Statutory TimelineMinimum 3 years to final risk determination · realistic 4–5 years

Possible OutcomesNo action · use restrictions · phase‑out · full prohibition · workplace exposure limit reductions

Precedent · Methylene ChlorideTSCA review → 2024 ban on most uses

Precedent · Chrysotile AsbestosTSCA review → 2024 federal ban

The TSCA process, in design, requires EPA to evaluate all exposure routes — manufacturing, processing, distribution, commercial use, consumer use, and disposal. For vinyl chloride, this means the evaluation must consider exposures at PVC plants, transportation accidents (East Palestine), Superfund site contamination, building‑material end uses (including flooring), and disposal. EPA must also specifically consider risks to infants and children, a statutory requirement that maps directly onto the established LVP / childhood asthma evidence.

"Vinyl chloride threatens our health and contaminates the environment from manufacture through disposal, with workers and people who live near chemical facilities and along vinyl chloride distribution routes experiencing the greatest exposures." — Sarah Doll, Safer States, on EPA's December 2024 designation

What the TSCA process cannot do, on its own, is move quickly. Risk evaluations consistently exceed the three‑year statutory minimum. The political composition of the executive branch substantially affects implementation; the chemical industry has historically used litigation, OMB review, and Congressional appropriations to slow the process at every available point. Restrictions, when they emerge, are often narrower than the underlying evidence would support.

State action is currently more fragmented. California's Proposition 65 already requires warning labels on LVP products containing reproductive toxins or carcinogens above threshold concentrations — which is why the warning labels are now nearly ubiquitous on imported product. Several states have considered restrictions on PVC in school construction and child‑use products. No state has yet adopted a comprehensive LVP restriction or labeling scheme equivalent to California's STOP Act for engineered stone.

The vinyl industry's own position, articulated through trade associations including the Vinyl Institute and the American Chemistry Council, is that the regulatory review will "further assure that the production of vinyl chloride and use of PVC products are safe." Industry messaging emphasizes the manufacturing improvements since the 1974 angiosarcoma cluster and the reformulation of the U.S. consumer product to remove the most damaging legacy phthalates. The first claim is empirically defensible at the workplace level. The second claim is partially true and partially marketing — the disclosure architecture that would allow consumers to verify it does not exist.

Current Status · Action Window

EPA accepted public comments on the draft scope document until April 2, 2025. The full risk evaluation will be published in draft form for additional comment, likely in late 2027 or 2028. The window for public engagement during evaluation is closed; the window during risk management rulemaking (post‑evaluation) will open subsequently. Substantive influence on the eventual rule is most likely to come from state action, plaintiff litigation, and substitute‑material market pressure rather than from the federal process alone.

File 07 · ActionRequired interventions · regulatory · consumer · industry

What Should Happen

The interventions supported by current evidence. None require a scientific advance. All are achievable without restricting consumer access.

This investigation does not advocate a ban on Luxury Vinyl Plank flooring. The evidence supporting a ban — at the level of evidence Australia required to ban engineered stone — is not yet present. What the evidence does support is a substantial tightening of disclosure, surveillance, and end‑of‑life management; an acceleration of the federal TSCA process; and a market signal that allows the silica‑free / PVC‑free alternative categories to compete on a level playing field that the current consumer disclosure regime does not provide. The interventions below are ordered in descending urgency:

01 · URGENT

Mandatory federal labeling. All LVP and adjacent PVC‑based flooring sold for residential installation should require, by federal rule, disclosure of: (a) FloorScore or GreenGuard Gold certification status; (b) phthalate composition by chemical name; (c) heavy metal content; (d) recommended post‑install ventilation duration. Modeled on California Air Resources Board CARB Phase 2 for formaldehyde.

02 · URGENT

EPA TSCA timeline acceleration. The vinyl chloride risk evaluation should not be permitted to extend beyond the three‑year statutory minimum. Congressional appropriations should specifically fund the timeline. The risk evaluation must include explicit assessment of childhood asthma evidence as a TSCA‑required vulnerable subpopulation consideration.

03 · NEAR‑TERM

Children's exposure assessment. CDC and ATSDR should publish authoritative public guidance on phthalate exposure from residential vinyl flooring, with specific recommendations for pediatric and prenatal populations. The Mount Sinai / Columbia evidence is sufficient to support such guidance immediately.

04 · NEAR‑TERM

Installer surveillance program. OSHA should initiate exposure characterization of LVP installer populations — VOC exposure during install, cutting dust composition, adhesive solvent exposure. The current absence of any baseline data is itself a regulatory gap. Modeled on existing surveillance programs for asbestos and silica abatement.

05 · NEAR‑TERM

Import quality control. Imported LVP (currently ~80% of U.S. supply) should be subject to mandatory testing for heavy metals, banned phthalates, and certification fraud at port of entry. The August 2025 45% tariffs on Chinese vinyl flooring address trade balance, not safety; a parallel safety framework is required.

06 · MEDIUM‑TERM

End‑of‑life recovery program. Manufacturer‑funded levy supporting takeback and processing of demolished LVP. Modeled on the existing state‑level paint stewardship programs (PaintCare) and the federal electronics recovery framework. Without intervention, the current installed base of LVP will become construction landfill that releases dioxins on incineration for generations.

07 · MEDIUM‑TERM

Substitute‑material market support. Federal tax credits, state procurement preferences, and green‑building certification (LEED, WELL) updates favoring PVC‑free alternatives — engineered hardwood, porcelain plank tile, true linoleum (Marmoleum), cork, sealed concrete. All currently competitive on durability; none currently competitive on consumer mindshare against LVP marketing.

08 · LONG‑TERM

Pursue manufacturer liability before a federal shield emerges. The plaintiff bar has not yet substantially engaged the childhood asthma / vinyl flooring evidence. Given the engineered stone precedent — where the manufacturer industry sought a federal liability shield before litigation matured — early establishment of legal accountability for LVP harm is structurally important to maintaining the regulatory and market mechanisms that drive product reform.

"We don't have to live with PVC plastics and cancer‑causing vinyl chloride. We already have safer alternatives for PVC products. We just need to use them." — Jess Conard, East Palestine resident; Beyond Plastics

The case for action is not that Luxury Vinyl Plank flooring is, on the individual installation, catastrophic. It is that the product is installed at the scale of tens of millions of American homes, that its chemistry carries a documented pediatric respiratory signal, that its manufacturing chain produces well‑characterized carcinogenic releases in defined communities, and that the structural conditions historically required to produce a public‑health reckoning — population scale, evidence base, regulatory inertia, industry consolidation — are all currently in place. The arc is identifiable. The timeline is establishable. The interventions are available. The decision is whether to take them now, while the harm is partially preventable, or in 2045, when the historical record will show that the warnings were available in 2026 and were not acted upon.

Aletheia Solutions will continue to report on this investigation as the EPA risk evaluation matures, as state and federal litigation develops, and as the substitute material market responds.

File 08 · Brand LedgerConsumer brands · health first · durability · disclosure · worldwide

The Brand Ledger

Every consumer LVP brand resolves to the same PVC chemistry. What separates them is what they disclose, what they certify, and what they leave unsaid. Graded on verifiable evidence — health first.

A note on method, because it determines what this ledger can honestly say. There is no brand of luxury vinyl plank that escapes the vinyl chloride / PVC chain documented in Files 01–05. The base polymer is identical across the category. Therefore a brand cannot be graded "healthy" or "unhealthy" in absolute terms — only more or less disclosed, more or less certified, more or less verifiable. The single axis on which consumer-facing health signal actually exists is third-party emissions certification and plasticizer disclosure: FloorScore, GREENGUARD Gold, and explicit phthalate-free formulation. Everything below is graded on that axis. Where a brand publishes no verifiable data, this ledger records "Not disclosed" — not a fabricated grade. Absence of evidence is reported as absence of evidence.

The Certification Hierarchy · Read This First

FloorScore (developed by the flooring industry, SCS Global) tests VOC emissions against California Section 01350. It is a minimum-compliance benchmark — it certifies the floor is not a high emitter. GREENGUARD Gold (UL) applies stricter chemical limits suited to schools and healthcare. Neither certification tests for phthalates or heavy metals — both are VOC-emissions standards only. A FloorScore label does not mean phthalate-free. "Phthalate-free" is a separate manufacturer claim, rarely third-party audited at the consumer level. The strongest verifiable position a brand can hold is all three: FloorScore + GREENGUARD Gold + documented phthalate-free. Most cannot show all three.

Worldwide regulatory backdrop. The disclosure gap this ledger measures exists because the regulatory floor varies by jurisdiction. In the European Union, REACH restricts DEHP, BBP, DBP and DIBP to ≤0.1% by weight in any consumer article or indoor material — a hard legal limit that does not exist at the U.S. federal level. The EU has also fought a multi-year battle to block recycled PVC containing legacy DEHP from re-entering flooring. In the United States, federal restriction depends on the EPA TSCA vinyl chloride evaluation (File 06) and state action (California Prop 65). In Asia — China, Vietnam, South Korea, origin of ~80% of U.S. supply — consumer chemical regulation is substantially weaker than either baseline. A brand's true exposure profile therefore depends heavily on where the plank was actually manufactured, which most consumer brands do not disclose.

Tier I · Documented Disclosure

Brands publishing verifiable certification and/or phthalate-free formulation

Cali (Cali Floors / Cali Bamboo)FloorScore + GREENGUARD Gold · markets phthalate-free SPC (Cali Vinyl Pro) · among the most consistently certified consumer-direct lines · Durability: rigid SPC, strong scratch/dent resistance

TarkettFloorScore + GREENGUARD Gold · phthalate-free across resilient lines · publishes recycled-content / circular-economy data (EU + US operations) · Durability: broad commercial-grade range

Mannington (Adura)FloorScore + GREENGUARD · U.S.-manufactured lines · states non-phthalate plasticizers · Durability: Adura Rigid/Max well-regarded, strong warranty

Proximity MillsGREENGUARD Gold · markets 0-VOC SPC with real-wood veneer over limestone core · sustainability positioning · Durability: rigid SPC, moisture/impact resistant

LL Flooring (CoreLuxe)GREENGUARD Gold rigid vinyl plank · note: parent retailer carries legacy reputational baggage from the 2015 laminate (not vinyl) formaldehyde episode · Durability: rigid core, mid-tier

CanopyGREENGUARD · markets fully phthalate-free · lifetime residential warranty signals durability confidence · Durability: SPC, premium-priced

KarndeanFloorScore · UK-origin brand, global distribution · glue-down and rigid ranges · premium design fidelity · Durability: high; thick wear layers on commercial lines

COREtec (Shaw / USFloors)GREENGUARD Gold across the full range + FloorScore on many lines — dual certification, the strongest verifiable position on this ledger. Some SKUs (e.g. Pro Plus) are retailer-described as tested to phthalate emission limits beyond the GGG baseline. Construction note (the real caveat): flagship cores are WPC (wood/bamboo + PVC), not SPC, and most lines carry attached cork backing — the one underlayment indoor-air specialists single out as a meaningful VOC source. Standard top-surface VOC testing may under-capture cork off-gassing at seams/edges. Durability: excellent dimensional stability, quiet/warm underfoot. Net: Tier I on certification and disclosure; carries a documented construction-level critique that certification does not resolve. Final check: verify live certificate on the UL SPOT registry before relying on this.

Tier II · Partial Disclosure

Major brands · certification present but incomplete or line-dependent

Shaw (Floorté / Floorté Pro)Phthalate-free claim + FloorScore on resilient lines · note: independent reviewers flag that Shaw LVP is not consistently GREENGUARD Gold-listed despite Shaw laminate/wood being so · Durability: SPC "Pro" series among the most impact-resistant on market

Mohawk (SolidTech / SolidTech Plus)FloorScore · phthalate-free positioning · industry-leading warranty (some lines cover subfloor) · GREENGUARD status line-dependent · Durability: very high; SolidTech engineered for active households

Armstrong (Empower / others)FloorScore on most resilient lines · legacy U.S. manufacturer · phthalate disclosure line-dependent · Durability: broad range, commercial heritage

GemCore (Reward Flooring / Galleher)FloorScore · SPC construction marketed for kids/pets · California distributor · Durability: high; rigid SPC core

Home Depot house brands (Lifeproof / A&A Surfaces / Lucida / others)Many SKUs carry FloorScore, GREENGUARD Gold, or "Phthalate Free" filter tags at retail · but house-brand sourcing is multi-OEM and opaque — certification is per-SKU, not per-brand · Durability: varies widely by SKU

Tier III · Budget & Distributor Lines

Value brands · certification often present per-SKU, disclosure thin on chemistry/origin

Liberty HomeSPC construction · budget positioning · certification per-SKU; phthalate / origin detail not consistently disclosed · Durability: SPC core, value-tier wear layers

LeganteU.S.-distributed value SPC · waterproof marketing · limited public chemical disclosure · Durability: mid; designed for rentals/basements

NewtonBudget-focused · sample-driven DTC model · disclosure thin beyond waterproof/wear claims · Durability: value-tier

DOTFLOOR / Dekorman / DuraDecorRetail-channel value brands · some SKUs carry FloorScore tags · manufacturer-level chemical and origin disclosure minimal · Durability: SKU-dependent

Tier IV · Manufacturing / OEM Origin

The factories behind many consumer labels — the ~80% import reality

Changlongflor (China)Publishes FloorScore, IAC Gold, EPD, CE · supplies SPC/WPC into many Western consumer labels · illustrates that OEM-level certification can exist upstream of an unbranded retail SKU · Durability: spec-dependent

Vietnam / South Korea OEM blocMajor share of U.S. import supply · quality and chemical control below EU REACH and U.S. baseline per File 07 · heavy metals (lead, cadmium) periodically detected in lower-tier imports · subject to August 2025 45% China tariffs (trade, not safety)

Tier V · Direct-to-Consumer / Regional · Disclosure Not Located

Smaller sellers marketing on lifestyle and performance, not chemistry

McMillan Floors (mcmillanfloors.com)Health: No third-party emissions certification, plasticizer formulation, or manufacturing origin located in public sources as of this report. Consumer-facing positioning observed is lifestyle-led — "Feels like home." Durability: not independently verifiable from public disclosure. Assessment: subject to all category-level findings (Files 01–07); brand-specific health data unverified — treat as undisclosed until the seller publishes certification and origin.

AquaProof Floors (aquaprooffloors.com)Health: No third-party emissions certification, plasticizer formulation, or manufacturing origin located in public sources as of this report. Consumer-facing positioning observed is performance-led — "Premium Waterproof Flooring." Waterproofing is a structural property of PVC/SPC and is not a health indicator. Durability: waterproof claim plausible for any SPC core but wear-layer thickness undisclosed. Assessment: subject to all category-level findings; brand-specific health data unverified — treat as undisclosed until the seller publishes certification and origin.

"I would choose the brand based on construction type, not certifications — SPC core over WPC, and avoid the underlayments that off-gas. Between properly-constructed brands I have not seen significant differences. The off-gassing is extremely minimal." — Indoor air-quality specialist, on how little brand identity actually changes the chemistry

The ledger's blunt conclusion: brand is a weaker variable than most marketing implies. A certified Tier I SPC plank and an uncertified Tier V SPC plank are far more chemically similar than their price and marketing suggest — both are PVC, both off-gas, both end in the same dioxin-releasing waste stream. What a Tier I brand buys you is verification — proof the emissions were tested and the worst legacy phthalates were excluded — not immunity from the category's underlying chemistry. For the two Tier V brands specifically, the honest position is not that they are dangerous; it is that they have not published the evidence that would let anyone say otherwise. The remedy is identical for every brand on this ledger: demand FloorScore and GREENGUARD Gold and a written phthalate-free statement and country of manufacture — and treat any brand that cannot produce all four as undisclosed, regardless of price or reputation.

Buyer's Verification Standard · Apply to Any Brand

(1) FloorScore certificate number — verifiable on SCS Global registry. (2) GREENGUARD Gold listing — verifiable on UL SPOT database. (3) Written "ortho-phthalate-free" statement naming the plasticizer used (DOTP/DINCH acceptable, undisclosed is not). (4) Country of manufacture. (5) Wear-layer thickness in mil (≥12 mil residential, ≥20 mil heavy use). A brand that supplies all five is disclosed. A brand that cannot is undisclosed — that is the only health grade the evidence supports.

The reckoning is structural, not speculative. The chemistry is already on the EPA's desk.

What this investigation establishes.

The product, the chemistry, the exposure.