Plastic chemicals are more numerable and less regulated than previously thought: Report

"There’s simply too many out there."

HOUSTON — Fewer than 6% of more than 16,000 chemicals associated with plastic production are regulated worldwide, according to a new report from PlastChem.


PlastChem is a project funded by the Norwegian Research Council that identifies and seeks to address potential harm from plastics and polymers. The report released Thursday builds on growing evidence that suggests plastic production, use and waste is flooding humans and Earth with hazardous, or potentially hazardous, compounds, and that regulation to protect us from these compounds is not keeping up.

The report has big implications for places like Houston, Texas — nicknamed the “Energy Capital of the World” — which has more than 600 oil and gas facilities on the Houston Ship Channel. Many of those facilities are dedicated to processing fossil fuels and producing plastics.

The report found:

  • 16,325 chemicals related to plastic production, whether used intentionally or as a byproduct of the plastic lifecycle.
  • 6,276 chemicals have been studied with data available in the public domain.
  • More than 9,000 of these chemicals have publicly available data.
  • Fewer than 6% of these chemicals are regulated.

“Very few of these chemicals are regulated on a global scale,” said Martin Wagner, first author of the report and a member of the PlastChem project team, during a webinar discussing the report findings. “There’s simply too many out there.”

“Many [regulated chemicals] are only regulated in parts of their life cycle,” added Laura Monclús, ecotoxicologist and PlastChem project team member.

Plastic lifecycle

Shell petrochemical plastics

The life cycle of a plastic usually starts with a fossil fuel — oil, gas or coal — that is chemically altered through petrochemical production into final products. Chemical pollution related to plastics — from the initial fossil fuel extraction to the plastic waste littering our land and water — has been attributed to serious health impacts, as noted in our previous reporting here. The Journal of the Endocrine Society recently published a study that found plastics were linked to $249 billion in healthcare costs in 2018 alone.

Of the 6,276 chemicals PlastChem has data for, they identified:

  • 3,567 as “hazardous chemicals of concern”
  • 1,168 as “less hazardous”
  • 28 as “watch list”
  • 153 as “not hazardous

“Research shows many of these chemicals are emitted or released [from plastic products], resulting in exposure … and the exposure has substantial health impacts,” Wagner said.

Monclús stated that PlastChem does not consider the chemicals listed as “not hazardous” to be safe. PlastChem was unable to evaluate the “not hazardous” chemicals for all aspects of their hazard testing.

Plastic policy recommendations 

The report suggested increasing industry and government transparency of chemicals, new regulations that target specific chemical groups similar in structure to known hazardous chemicals such as PFAS, bisphenols and phthalates (since production outpaces the time needed to study each individual chemical), and inclusion of their research into the UN Global Plastics Treaty draft.

The American Chemistry Council, which represents chemical manufacturers, said they were “encouraged that today’s report emphasizes the need for greater transparency around the use of plastic additives and potential health risks” but questioned some of the data.

“Unfortunately, today’s report seeks to advance a hazard framework that ignores real-world exposures and paints an incomplete picture for regulators and the public,” said Kimberly Wise White, vice president of regulatory and technical affairs in a press release from the American Chemistry Council.

However, Karen Reubenheimer, senior lecturer for the Australian National Centre for Ocean Resources and Security at the University of Wollongong, said the “report has made very clear that transparency and disclosure is lacking.”

“It’s easy to manage pollution you can see, but pollution you can’t, you need really clear data.”

The database can be downloaded here.

A view of a lake with tall trees and mountains in the background

Trump is thirsty for Canada’s water, but our own gluttony is the bigger threat

Scarcity, pollution, and deregulation are putting Canada’s water supply under siege

An arial view of a wetlands environment with water and shrubbery

Forget border walls. Restored wetlands are a new national defense

A team at the University of East London argues that "defensive rewilding" could stop invading armies more cheaply than concrete ever could—while doubling as a climate solution.
A greenhouse with rows of potted plants

Understanding how plants pause and restart growth can help develop climate-resilient crops

By identifying the genes that allow plants to pause growth during stress and restart, we can help ensure crops produce reliable harvests in a changing climate.
A row of solar panels with mountains and a wind turbine in the background

Renewable energy just broke a 100-year-old streak

For more than a century, the world has run on coal; then last year, it lost the lead.

A view of a mountain range with sparse snow in the foreground

Utah grapples with unprecedented water conditions in the year of the ‘no-pack’

Utah cities, ski resorts, farmers, and scientists tracking and preparing for the fallout of this year’s lowest-ever snowpack and winter drought are already feeling the effects.

Heating thermostat on space heater with piggy bank and money indicating expensive heating costs
Credit: alexraths/BigStock Photo ID: 73227436

Colombia climate conference highlights challenges to shift from fossil fuels

A lack of financing is emerging as a major barrier to moving away from fossil fuels, officials and experts said at a global conference in Colombia.
An oil pump jack against a starry sky

Drill, baby, drill? US, China fight for the future of energy

The Strait of Hormuz blockade is having a major impact on global energy markets, and many observers believe that rising fuel prices will boost renewable energies.

From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.